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Department of Chemical Engineering
University of Chemistry and Technology, Prague
Technická 3
166 28 Prague
Czechia
(see map)
e
+420 220 444460
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Abstract:
Pattern formation in far from equilibrium systems is observed in several disciplines including biology and reaction-diffusion chemistry, comprising both living and non-living systems. We aim to study such non-equilibrium dynamics of a novel system based on a 1-decanol droplet placed in a solution of alkaline decanoate. Recently, we have found that when the system is open to the environment and the evaporation of water from decanoate solution occurs we observe dramatic morphological changes of the decanol droplet. Moreover in the presence of sodium chloride it shows a novel type of pattern formation, namely the formation of long tentacular structures that we aim to analyse within present project at both the macroscopic and microscopic scale across a large range of initial conditions. Such reproducible morphological changes in simple droplets open a path for exploration of shape-based effects in larger scale pattern formation studies.
Start date:
2017-01-01
End date:
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|
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Doc. Ing. Jitka Čejková, Ph.D. |
Students
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Adriana Augustínová
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Laura Bábanová
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Nina Nováková
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Eliška Paulíková
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Jakub Vaculík
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Aygun Gasimova
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Alumni
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Andoni Aguirre
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Vojtěch Blahušek
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Linda Bondorf
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Barış Çınar
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Ecaterina Laura Cioban
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Radek Chmelař
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Megan Jack
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Petra Janská
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Ilgın Karakoç
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Fillip Keller
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Markéta Kubiková
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Mathis Leemann
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George Loustas
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To Quyen Nguyenová
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Matěj Novák
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Ioannis Pantazos
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Ondřej Rychecký
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Adam Sikorják
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Sara Patricia Ferreira Da Silva
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Jana Steinhauserová
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Dominik Švára
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Dorota Marie Walecka
|
Collaborators
 |
Taisuke Banno
|
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Martin M. Hanczyc
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Takashi Ikegami
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Karin Schwarzenberger
|
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Kasper Stoy
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František Štěpánek
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Shinpei Tanaka
|
*alphabetical order in all lists
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ROBOT 100On the occasion of 100th anniversary of the word "robot", I published the book ROBOT 100 and organized a conference on artificial life ALIFE 2021 in Prague |
 |
ChemobrionicsCOST Action where we are involved in |
 |
CHEMALIFORMSWorkshop at ALIFE 2019 Newcastle (UK) 29 Jul 2019 organized by Jitka Čejková, Richard Löffler and Geoff Cooper |
Publications
- Čejková J., Holler S., Löffler R., Witkowski O. (2022). Editorial Introduction to the 2021 Conference on Artificial Life Special Issue, Artificial Life 28 (4): 397–400.
- Čejková J. (2022). O Fakultě chemicko-inženýrské, Chemické listy 116(10), 574–580.
- Čejková J., Cartwright J. H. E. (2022). Chemobrionics and Systems Chemistry, ChemSystemsChem (Guest Editorial).
- McGachy L., Heyda J., Tomas J., Čejková J. (2021). Decanol Pattern Formation over a Sessile Aqueous Decanoate Droplet, Colloids and Surfaces A: Physicochemical and Engineering Aspects 621, 126541.
- Becherová L., Prokopec V., Čejková J. (2021). Vibrational spectroscopic analysis of critical micelle concentration in sodium decanoate solutions, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 250, 119387.
- Cardoso S. S. S., Cartwright J. H. E., Čejková J., Cronin L., Wit A. D., Giannerini S., Horváth D., Rodrigues A., Russell M. J., Sainz-Díaz C. I., Tóth Á. (2020), Chemobrionics: From Self-assembled Material Architectures to the Origin of Life, Artificial Life 26(3), 315-326 (open access).
- Janská P., Rychecký O., Zadražil A., Štěpánek F., Čejková J. (2019), Liquid oil marbles: increasing the bio-availability of poorly water-soluble drugs, Journal of Pharmaceutical Sciences, 108(6), 2136-2142.
- Čejková J., Schwarzenberger K., Eckert K., Tanaka S. (2019), Dancing performance of organic droplets in aqueous surfactant solutions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 566, 141-147.
- Čejková J., Hanczyc M.M., Štěpánek F. (2018), Multi-Armed Droplets as Shape-Changing Protocells, Artificial Life, 24 (1), 71-79.
- Čejková J., Banno T., Štěpánek F., Hanczyc M.M. (2017), Droplets as Liquid Robots, Artificial Life, 23 (4), 528-549 (open access).
- Čejková J., Rychecký O. (2017), Tekuté kuličky, Chemické listy 111, 109-114.
- Rychecký O., Majerská M., Král V., Štěpánek F., Čejková J. (2017), Spheroid cultivation of HT-29 carcinoma cell line in liquid marbles, Chemical Papers 71(6), 1055–1063.
- Čejková J., Štěpánek F., Hanczyc M. (2016), Evaporation-induced pattern formation of decanol droplets, Langmuir 32, 4800-4805.
- Čejková J., Novák M., Štěpánek F., Hanczyc M. (2014), Dynamics of chemotactic droplets in salt concentration gradients, Langmuir ,30(40), 11937–11944.
- Čejková J., Haufová P., Gorný D., Hanuš J., Štěpánek F. (2013), Biologically triggered liberation of sub-micron particles from alginate microcapsules, Journal of Materials Chemistry B 1, 5456-5461.
- Čejková J. (2013), Dictyostelium discoideum – model system not only for biologists, Chemické listy 107, 563-600.
- Čejková J., Štěpánek F. (2013), Compartmentalized and internally structured particles for drug delivery, Current Pharmaceutical Design 19(35), 6298-6314.
- Prokopec V., Kokaislová A., Čejková J., Dendisová M., Člupek M., Matějka P. (2011), Spectroscopic study of SERS- and SEIRA- activity of copper large-scaled surface substrates prepared by electrochemical deposition: what is the role of oxidation-reduction cycle treatment?, Journal of Molecular Structure 993, 410-419.
- Čejková J., Hanuš J., Štěpánek F. (2010), Investigation of internal microstructure and thermo-responsive properties of composite PNIPAM/silica microcapsules. Journal of Colloid and Interface Science 346, 352-360.
- Ševčíková H., Čejková J., Krausová L., Přibyl M., Štěpánek F., Marek M. (2010) A new traveling wave pattern of Dictyostelium in the presence of cAMP in the agar. Physica D 239, 879-888.
- Čejková J., Prokopec V., Brázdová S., Kokaislová A., Matějka P., Štěpánek F. (2009), Characterization of copper SERS-active substrates prepared by electrochemical deposition. Applied Surface Science 255, 7864-7870.
- Kokaislová A., Brázdová S., Prokopec V., Člupek M., Čejková J., Matějka P. (2009), Příprava SERS-aktivních měděných substrátů katodickou redukcí a vyhodnocení jejich struktury pomocí mikroskopie atomárních sil. Chemické listy 103, 246-250.
- Hilgardt C., Čejková J., Hauser M. J. B., Ševčíková H. (2008), Streamless aggregation of Dictyostelium in the presence of isopropylidenadenosin. Biophysical Chemistry 132, 9-17.
- Prokopec V., Čejková J., Matějka P., Hasal P. (2008), Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure. Surface and Interface Analysis 40, 601-607.
Book Chapters
- Čejková J., Nguyenová T.Q., Štěpánek F. “Chemotactic droplets serving as chemo-taxi”. In “Self-Organized Motion: Physiochemical Design based on Nonlinear Dynamics”, (Nakata S., Pimienta V., Lagzi I., Kitahata H., Suematsu N.J., eds.), Royal Society of Chemistry, pp. 182-203 (2019).
- Čejková J., Tóth R., Braun A., Ueyama D., Lagzi I. "Shortest path finding in mazes by active and passive particles". In „Shortest path. Parallel and distributed solvers“ (Adamatzky A., ed.), Springer, pp. 401-408 (2018).
- Čejková J., Holler S., Nguyenová T.Q., Kerrigan C., Štěpánek F., Hanczyc, M. M. “Chemotaxis and chemokinesis of living and non-living objects” In Advances in Unconventional Computing, Volume 2: Prototypes, Models and Algorithms, (Adamatzky A., ed.) Springer, pp. 245-260 (2016).
Proceedings
(selected from over 40 papers)
- Čejková J., Robots: The century past and the century ahead, an Introduction to the 2021 ALIFE conference, Artificial Life Conference Proceedings, MIT Press, 2021.
- Čejková J., Ikegami T., Experimental study of mutual interactions of multiple liquid droplets, Proceedings of the 2nd International Symposium on Swarm Behavior and Bio-Inspired Robotics, Kyoto (Japan), 31. 10. -1. 11. 2017, pp. 274-278 (2017).
- Čejková J., Ikegami T., Štěpánek F., Life-like swarm behavior of multiple chemotactic droplets, Proceedings of the European Conference on Artificial Life 2017, Lyon (France), 4. – 9. 9. 2017, MIT Press, pp. 91-95 (2017).
- Čejková J., Haufová P., Gorný D., Štěpánek F.: “Artificial spores” – hybrid alginate microcapsules with encapsulated yeast cells, Proceedings of the Twelfth European Conference on the Synthesis and Simulation of Living Systems, Taormina (Italy), 2. -6. 9. 2013, MIT Press, pp. 818-823 (2013).
- Čejková J., Štěpánek F.: Chobotix 2012: book of proceedings, Institute of Chemical Technology Prague, 2012, ISBN 978-80-7080-813-9 (editor).
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[obsah] => After 4 years finally in person ALIFE conference!
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[detail] => In the days of July 24th to 28th, the annual Conference on Artificial Life ALIFE 2023 took place in Sapporo, Japan. Jitka Cejkova, after four years, had the opportunity to meet her "ALIFE family" and colleagues from the community in person, as the previous three conferences were held virtually (with Jitka organizing the ALIFE 2021 conference "in Prague").
This year's conference was as captivating as ever, featuring intriguing lectures, workshops, and discussions. Jitka, alongside Olaf Witkowski and Alyssa Adams, conducted ISAL Summer School on Artificial Life. During the Monday sessions, videos were published in which leading scientists in the field summarized their research and explained their dedication to artificial life, all within ten minutes. Friday's segment consisted of engaging discussions and Q&A sessions.
Moreover, Jitka hosted “CHEMALIFORMS III - the Third Workshop on Chemistry and Artificial Life Forms” where she gave a lecture on the topic of R.U.R. and the Vision of Artificial Life.
A significant highlight of the conference was the promotion of the book "R.U.R. and the Vision of Artificial Life " set to be published by MIT Press on 2nd January 2024. More than half of the contributors to this book were present at the conference. Additionally, among the 100 authors who contributed to the Czech book "ROBOT 100," published by the VSCHT Prague publishing house in November 2020, there were 18 authors who attended the event (see photo).
All Alifers are eagerly looking forward to ALIFE 2024, which is scheduled to take place in Copenhagen. Following that, there is even more excitement building up for ALIFE 2025, which will be held in Kyoto. These conferences will undoubtedly provide unique opportunities for researchers, scientists, and enthusiasts to come together, exchange ideas, present their latest findings, and further advance the fascinating field of artificial life research. As the ALIFE community continues to grow and evolve, these upcoming conferences promise to be memorable and enriching experiences for all attendees.
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[obsah] => Organized by Jitka Cejkova, Olaf Witkowski and Allysa Adams. Join us on YouTube!
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[nazev] => ParkLane Work Experience Programme
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[obsah] => Last week, we hosted a student from ParkLane
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Last week, we had a student from ParkLane join us for an internship in our laboratory. We were delighted to introduce her to our University of Chemistry and Technology Prague and provide insights into the world of scientific research. Throughout her stay, she had the opportunity to learn about various aspects of student life and even observed the final exams as a guest. In addition, she actively participated in an experiment involving the preparation of liposomes, and I'm pleased to say that her attempt was successful.
During her time here, we engaged in extensive discussions about the university, and she gained a deeper understanding of our ongoing research endeavors. It was fascinating to witness her enthusiasm as she explored our facilities and witnessed firsthand the cutting-edge work being conducted by our researchers.
We believe that this experience was mutually beneficial, as our visiting student gained valuable insights into our university's academic environment, while we had the opportunity to share our knowledge and introduce our university. It is through such collaborative initiatives that we continue to cultivate a spirit of innovation and excellence in scientific education.
We look forward to future partnerships with ParkLane and exchanges that will further enhance our global academic community.
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[obsah] => to Adriana Augustínová and Eliška Paulíková for successfully defending their bachelor theses
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[detail] => Many congratulations to Adriana Augustínová and Eliška Paulíková for successfully defending their bachelor theses today. Well done, girls! Thank you for your work and looking forward to the furter collaboration!
The controlled growth of chemical gardens from mixed liquid and solid seeds
Adriana Augustínová
Chemical gardens, intriguing and visually captivating structures formed through the self-assembly of inorganic compounds in water glass, have long fascinated scientists and sparked interest in control of their unique growth formation. This work aims to explore the use of different seeds for chemical garden growth, utilizing a novel and innovative approach involving solidified marbles, tablets, and mixed seeds. Previous research has mainly focused on controlling and studying the composition of seeds from one type of salt. This approach introduces solidified marbles as seed materials, a method not explored previously. In this study, mixed seeds were prepared and characterized to identify suitable experimental arrangements and compositions that yield self-growing structures with desired properties. Investigating mixed seeds introduces a novel aspect to the field, combining different seed types containing chlorides and sulphates with various cations. This research demonstrates the utilization of prepared seeds for achieving controlled growth of chemical gardens. This advancement enables in the future the design of intricate structures, which may revolutionize fields such as chemical 3D printing and materials engineering through the innovative use of solidified marbles and mixed seeds.
Study of translational and rotational motions of self-propelled chemical objects
Eliška Paulíková
This thesis is concerned with the study of translational and rotational motions of liquid robots, which in
this work were droplets of decanol in sodium decanoate solution. A parametric study was carried out where the movements of the liquid robots were examined as a function of their volumes and the lengths of the objects placed on them. The code was written and tested in Matlab for image analysis, which was also used to evaluate the motion of liquid robots. Trajectories of the liquid robots, but also of the objects placed on them, and the dependence of velocity, respectively angular frequency over time were plotted from the acquired data. A hypothesis for the motion mechanism of the liquid robots was proposed and subsequently confirmed experimentally
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[detail] => We are proud to announce that Eliška Paulíková represented our group exceptionally well at the SSCHE 2023 conference held from May 15th to 18th, 2023, in the beautiful surroundings of the High Tatras and received an award in the poster competition for her work titled "Study of Translational and Rotational Motions of Self-Propelled Liquid Robots." Congratulations, Eliška! Well done!
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[detail] => In the fall of 2022, a new COST action titled DYNALIFE (Information, Coding, and Biological Function: the Dynamics of Life) was launched, and Jitka Čejková was elected as the Working Group 4 leader and science communication coordinator. This week, the first major conference took place in Venice, and Jitka would like to share her summary of the entire event.
We are pleased to share with you the successful outcome of the "80, 70, 20 Conference: Towards Excellence and Convergence Research in Theoretical Biology," which took place from May 2nd to May 4th in Venice, Italy. The conference celebrated three important anniversaries in the history of theoretical biology, including the 80th anniversary of Erwin Schrödinger's book "What is Life?" and the definition of the new field of "Epigenetics" by Conrad Waddington in 1943, the 70th anniversary of the discovery of the double helix structure of DNA by Watson and Crick in 1953, and the 20th anniversary of the publication of the first complete sequencing of the human genome in 2003.
The conference featured four keynote speakers, including Achille Giacometti, Director of the European Center for Living Technology (Venice, Italy), Paul Davies, Director of BEYOND: Center for Fundamental Concepts in Science (USA), Alberto Credi, pioneer on molecular motors and Pro-Rector of the University of Bologna, and Michael Russell, pioneer of the theory of the origin of life in marine hydrothermal vents. The event also included short and long lectures, as well as a poster section.
We would like to express our sincere gratitude to the organizers for their hard work in making this conference a success. We hope that this first conference has kickstarted four years of fruitful collaboration within our COST action. Please feel free to visit our website to stay up to date with our progress and upcoming events. You can also find a photo gallery from the conference on our website, along with all the essential information regarding our COST action.
Thank you to all who participated and contributed to the success of the conference. We look forward to continuing our work together and achieving further excellence and convergence research in theoretical biology.
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[nazev] => New puppy of the future guide dog in our group
[datum] => 12.02.2023
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[obsah] => Ingo has been replaced by Kelvin
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[detail] => Jitka is a puppywalker - a volunteer who trains future guide dogs. First we had a yellow labrador Gin, then a black Ingo in our group. And now Ingo was replaced by his paternal half-brother - named after one of the basic SI units: Kelvin.
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[obsah] => Congratulations! Well done!
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[detail] => The annual Student scientific conference (SVK) took place at UCT Prague today and Eliška Paulíková won in the Applied informatics and cybernetics session! Congratulations! Áďa Augustínová, Vojta Blahušek and Nina Nováková also represented our group in an exemplary manner. Thank you all! Keep up your hard work and enthusiasm for science!
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[detail] => On October 5 - 8, 2022, the teambuilding event "Běstvina 2022" took place for students of the 1st year of the Master's degree in Chemical Engineering and Bioengineering. The event was attended by 32 students who stayed for three nights at the UCT Prague camp base in Běstvina and traveled by bus on the excursion every day. The program included a total of 6 industrial excursions (Škoda Auto, Synthesia, Kemwater ProChemie, Pardubice Brewery, wastewater treatment plant in Kutna Hora) and a block of presentations by representatives of the research groups of our department. The event was organized by Jitka Čejková.
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[nazev] => 2022 Researchers’ Night theme: "All the Senses"
[datum] => 30.09.2022
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[obsah] => Guide dogs help when one sense is missing
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[detail] => The University of chemistry and technology Prague was also participating in the European Researchers Night this year . On 30 September 2022 from 5:00 p.m. the doors of scientific workplaces, universities, museums and other participating institutions were opened and visitors were allowed to see research presentations on the subject of All the Senses. This year, however, instead of showing her laboratory, Jitka presented "her" dog Ingo to the participants. The theme was "All the senses" and so she and the representatives of SVVP dog centre Jinonice showed how the guide dogs help the blind when they lack one sense. Jitka is training future guide dogs since 2021.
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[detail] => The University of Chemistry and Technology Prague celebrates its 70th anniversary this year. On this occasion, a paper (in Czech) by Jitka Čejková devoted to the Faculty of Chemical Engineering was prepared. First, the history of the faculty and the development of its departments is summarized. The faculty was established as the Faculty of Chemical Production, Automation and Economics in 1960 and it was renamed to the Faculty of Chemical Engineering in 1969. Further, the key scientists, teachers and deans are introduced and their contribution to the advancement of the faculty highlighted. The current offer of study programs (bachelor, master and doctoral) in both Czech and English is also listed.
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[datum] => 19.09.2022
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[obsah] => Information, Coding, and Biological Function: the Dynamics of Life
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[detail] => Today, we had a kick-off meeting of a new COST Action titled "Information, Coding, and Biological Function: the Dynamics of Life" in Brussels. Jitka Čejková was elected as the Work Group 4 leader and Science communication coordinator.
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[detail] => On September 12-13, Jitka was invited to attended an exploratory workshop which was hosted at the European Centre for LivingTechnology (ECLT) in Venice. The focus areas were: The creation and exploration of living and life-like materials and The dynamics of systems for generalized health.
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[detail] => COST Action Chemobrionics Pisa Meeting 2022 started today. Jitka and four students (Adriana Augustínová, Vojta Blahušek, Nina Nováková, Eliška Paulíková) attend this 3-day event full of interesting talks and discussions.
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[obsah] => to Nina Nováková to the successful defense of her bachelor's thesis
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[detail] => Many congratulations to Nina Nováková for successfully defending her bachelor thesis titled “Experimental study of the myelin figures growth”. Thank you, Nina, for your work and looking forward to the furter collaboration!
Myelin figures are long, thin cylindrical structures that usually grow as a dense tangle when water is added to the concentrated lamellar phase of certain surfactants. In our laboratory, we observed the growth of these figures, on the contrary, when the water evaporates from the system. The aim of this bachelor thesis was to experimentally study myelin figures growing from a decanol droplet in the presence of an aqueous solution of sodium decanoate depending on the presence of different types of salts.
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[detail] => It was our pleasure to host Ecaterina Laura Cioban - Erasmus student from Romania. She spent several weeks in our laboratory working on liquid marbles. And now George Loustas - an IAESTE student from Greece - will continue his experiments with liquid marbles.
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[obsah] => The head of the Droplet laboratory moved into the wild to study droplets...
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[obsah] => for Jitka Čejková
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[detail] => Master's graduations took place on Wednesday, June 22, 2022. At the same time, the Betlemská Chapel hosted a ceremonial award with the medals of the Faculty of Chemical Engineering of three outstanding personalities who, with their scientific, pedagogical or organizational activities, contributed to the development of our faculty. Dean of the faculty prof. Michal Přibyl handed over the medal personally to doc. Pavel Chuchvalec from the Department of Physical Chemistry, doc. Jitka Čejková from the Department of Chemical Engineering and doc. Vladimír Scholtz from the Department of Physics and Measurement Technology.
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[obsah] => to Vojta Blahušek for successfully defending his bachelor thesis
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[detail] => Many congratulations to Vojta Blahušek for successfully defending his bachelor thesis titled “Experimental study of mechanical properties of liquid marbles”. Thank you Vojta for your work and all the best for your future!
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[obsah] => Don't miss a talk by my colleague and friend
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[obsah] => We are looking forward to your abstracts
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[obsah] => Watch on the talk record on YouTube
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[obsah] => and a new puppy of a future guide dog in our office
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[obsah] => Our Chemobrionics film is one of the 17 films in a competitive selection of the best short films!
[odkaz] => https://afo.cz/en/section/short-film-competition
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[obsah] => ChemSystemsChem editorial by guest editors J.Čejková and J.Cartwright
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[obsah] => We organise a workshop at the International Conference on Learning Representations
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[obsah] => Mathis, Nina and Vojta represented our group
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[detail] => Congratulations to Mathis Leeman, Nina Nováková and Vojta Blahušek for their great presentations at Student Scientific Conference SVK 2021. Today Mathis presented his results on chemical gardens, Nina on myelin figures and Vojta on liquid marbles. Well done, keep going!
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[obsah] => World Premiere at 25th Ji.hlava International Documentary Film Festival
[odkaz] =>
[detail] => If you have a garden and a library, you have everything you need
Our interanational student Mathis Leemann from Switzerland made a short film titled "Chemobrionics". This film had a world premiere today at the 25th Ji.hlava International Documentary Film Festival in the section Fascinations: Exprmntl.cz.
The title of this 5-min length audio-visual chemobrionics related project is a quotation by Cicero and it was chosen with the aim to show, that in the same way as Roman garden was designed for thinking, philosophizing and discourse, the chemical gardens can also open the door to philosophical questions such as what life is and how it originated, how we distinguish the biological systems from their chemical counterparts. Our video focuses on showing the beauty of silicate chemical gardens composed of plant-like tubular structures made of metal salts placed in a water glass. The viewer is be puzzled by the hypnotic slow growth of the structures and the manifold of colors they can produce. Tiny aerial air bubbles, flowing inner solutions, thick and alien-like structures changing colors let the audience perplexed, dreamy, wondering why nature is presenting such delightful sight. Furthermore, extracts of Doctor Faustus by Thomas Mann, The Origin of Life by John Desmond Bernal and Mechanism of life by Stéphane Leduc are added to deepen the experience. The inspiration for this audio background was taken from Julyan Cartwright’s works focused on the chemical gardens, their history and mentions in the literature.
- Director and producer: Jitka Čejková
- Editor: Mathis Leemann
- Camera operator: Mathis Leemann, Jan Havlík
- Experiments: Mathis Leemann, Jan Havlík, Saniya Ustunn
- Voice: Declan Garvey
- Music: Chopin - Raindrop Prelude (Op. 28 No. 15), performed by Petr Mazúr
This film is based upon work from COST Action CA17120, supported by COST (European Cooperation in Science and Technology). COST is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.
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Distinguished Early-Career Investigator Award - to recognize an individual who is early in their career, but has already made important contributions to the field of Artificial Life.
Alan Dorin said during the ceremony: "Jitka is a strong contributor to the ALife domain, both technically, and to the ALife community. This year, as you can see, she has done a fantastic job of organising a specially themed ALife conference, building on the 100th anniversary of the word "robot". She put together a fabulous book, soon to be released, of essays by a wide range of scientists, on the play RUR, and she is working hard behind the scenes to build links and bridges across the ALife community. On the technical side, she is prominent in chemical robotics, with exciting ways to apply to ALife. She applies minimal cognition principles to chemical robotics Her work has led to some creative droplet experiments, which have re-vitalized the "wet" ALife tradition."
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This year's foreign studentsWe were honored to host these two skilled foreign students in our laboratory this summer, Aygun Gasimova from Azerbaijan and Dorota Marie Walecka from Poland.
ALIFE 2023 Conference on Artificial Life in SapporoIn the days of July 24th to 28th, the annual Conference on Artificial Life ALIFE 2023 took place in Sapporo, Japan. Jitka Cejkova, after four years, had the opportunity to meet her "ALIFE family" and colleagues from the community in person, as the previous three conferences were held virtually (with Jitka organizing the ALIFE 2021 conference "in Prague").
This year's conference was as captivating as ever, featuring intriguing lectures, workshops, and discussions. Jitka, alongside Olaf Witkowski and Alyssa Adams, conducted ISAL Summer School on Artificial Life. During the Monday sessions, videos were published in which leading scientists in the field summarized their research and explained their dedication to artificial life, all within ten minutes. Friday's segment consisted of engaging discussions and Q&A sessions.
Moreover, Jitka hosted “CHEMALIFORMS III - the Third Workshop on Chemistry and Artificial Life Forms” where she gave a lecture on the topic of R.U.R. and the Vision of Artificial Life.
A significant highlight of the conference was the promotion of the book "R.U.R. and the Vision of Artificial Life " set to be published by MIT Press on 2nd January 2024. More than half of the contributors to this book were present at the conference. Additionally, among the 100 authors who contributed to the Czech book "ROBOT 100," published by the VSCHT Prague publishing house in November 2020, there were 18 authors who attended the event (see photo).
All Alifers are eagerly looking forward to ALIFE 2024, which is scheduled to take place in Copenhagen. Following that, there is even more excitement building up for ALIFE 2025, which will be held in Kyoto. These conferences will undoubtedly provide unique opportunities for researchers, scientists, and enthusiasts to come together, exchange ideas, present their latest findings, and further advance the fascinating field of artificial life research. As the ALIFE community continues to grow and evolve, these upcoming conferences promise to be memorable and enriching experiences for all attendees.
Winners Announcement of ALIFE 2023 Student Literature Contestorganized by Jitka and Olaf
2023 ISAL Summer School on Artificial LifeOrganized by Jitka Cejkova, Olaf Witkowski and Allysa Adams. Join us on YouTube!
ParkLane Work Experience Programme Last week, we had a student from ParkLane join us for an internship in our laboratory. We were delighted to introduce her to our University of Chemistry and Technology Prague and provide insights into the world of scientific research. Throughout her stay, she had the opportunity to learn about various aspects of student life and even observed the final exams as a guest. In addition, she actively participated in an experiment involving the preparation of liposomes, and I'm pleased to say that her attempt was successful.
During her time here, we engaged in extensive discussions about the university, and she gained a deeper understanding of our ongoing research endeavors. It was fascinating to witness her enthusiasm as she explored our facilities and witnessed firsthand the cutting-edge work being conducted by our researchers.
We believe that this experience was mutually beneficial, as our visiting student gained valuable insights into our university's academic environment, while we had the opportunity to share our knowledge and introduce our university. It is through such collaborative initiatives that we continue to cultivate a spirit of innovation and excellence in scientific education.
We look forward to future partnerships with ParkLane and exchanges that will further enhance our global academic community.
CongratulationsMany congratulations to Adriana Augustínová and Eliška Paulíková for successfully defending their bachelor theses today. Well done, girls! Thank you for your work and looking forward to the furter collaboration!
The controlled growth of chemical gardens from mixed liquid and solid seeds
Adriana Augustínová
Chemical gardens, intriguing and visually captivating structures formed through the self-assembly of inorganic compounds in water glass, have long fascinated scientists and sparked interest in control of their unique growth formation. This work aims to explore the use of different seeds for chemical garden growth, utilizing a novel and innovative approach involving solidified marbles, tablets, and mixed seeds. Previous research has mainly focused on controlling and studying the composition of seeds from one type of salt. This approach introduces solidified marbles as seed materials, a method not explored previously. In this study, mixed seeds were prepared and characterized to identify suitable experimental arrangements and compositions that yield self-growing structures with desired properties. Investigating mixed seeds introduces a novel aspect to the field, combining different seed types containing chlorides and sulphates with various cations. This research demonstrates the utilization of prepared seeds for achieving controlled growth of chemical gardens. This advancement enables in the future the design of intricate structures, which may revolutionize fields such as chemical 3D printing and materials engineering through the innovative use of solidified marbles and mixed seeds.
Study of translational and rotational motions of self-propelled chemical objects
Eliška Paulíková
This thesis is concerned with the study of translational and rotational motions of liquid robots, which in
this work were droplets of decanol in sodium decanoate solution. A parametric study was carried out where the movements of the liquid robots were examined as a function of their volumes and the lengths of the objects placed on them. The code was written and tested in Matlab for image analysis, which was also used to evaluate the motion of liquid robots. Trajectories of the liquid robots, but also of the objects placed on them, and the dependence of velocity, respectively angular frequency over time were plotted from the acquired data. A hypothesis for the motion mechanism of the liquid robots was proposed and subsequently confirmed experimentally
SSCHE Best Student Poster Award 2023We are proud to announce that Eliška Paulíková represented our group exceptionally well at the SSCHE 2023 conference held from May 15th to 18th, 2023, in the beautiful surroundings of the High Tatras and received an award in the poster competition for her work titled "Study of Translational and Rotational Motions of Self-Propelled Liquid Robots." Congratulations, Eliška! Well done!
COST Action DYNALIFE Conference in VeniceIn the fall of 2022, a new COST action titled DYNALIFE (Information, Coding, and Biological Function: the Dynamics of Life) was launched, and Jitka Čejková was elected as the Working Group 4 leader and science communication coordinator. This week, the first major conference took place in Venice, and Jitka would like to share her summary of the entire event.
We are pleased to share with you the successful outcome of the "80, 70, 20 Conference: Towards Excellence and Convergence Research in Theoretical Biology," which took place from May 2nd to May 4th in Venice, Italy. The conference celebrated three important anniversaries in the history of theoretical biology, including the 80th anniversary of Erwin Schrödinger's book "What is Life?" and the definition of the new field of "Epigenetics" by Conrad Waddington in 1943, the 70th anniversary of the discovery of the double helix structure of DNA by Watson and Crick in 1953, and the 20th anniversary of the publication of the first complete sequencing of the human genome in 2003.
The conference featured four keynote speakers, including Achille Giacometti, Director of the European Center for Living Technology (Venice, Italy), Paul Davies, Director of BEYOND: Center for Fundamental Concepts in Science (USA), Alberto Credi, pioneer on molecular motors and Pro-Rector of the University of Bologna, and Michael Russell, pioneer of the theory of the origin of life in marine hydrothermal vents. The event also included short and long lectures, as well as a poster section.
We would like to express our sincere gratitude to the organizers for their hard work in making this conference a success. We hope that this first conference has kickstarted four years of fruitful collaboration within our COST action. Please feel free to visit our website to stay up to date with our progress and upcoming events. You can also find a photo gallery from the conference on our website, along with all the essential information regarding our COST action.
Thank you to all who participated and contributed to the success of the conference. We look forward to continuing our work together and achieving further excellence and convergence research in theoretical biology.
Call for abstractsWe are organising the Third Workshop on Chemistry and Artificial Life Forms “CHEMALIFORMS III"
Chemobrionics in AthensAdriana and Eliška represented our group and presented their posters
New puppy of the future guide dog in our groupJitka is a puppywalker - a volunteer who trains future guide dogs. First we had a yellow labrador Gin, then a black Ingo in our group. And now Ingo was replaced by his paternal half-brother - named after one of the basic SI units: Kelvin.
Eliška Paulíková won Student scientific conferenceThe annual Student scientific conference (SVK) took place at UCT Prague today and Eliška Paulíková won in the Applied informatics and cybernetics session! Congratulations! Áďa Augustínová, Vojta Blahušek and Nina Nováková also represented our group in an exemplary manner. Thank you all! Keep up your hard work and enthusiasm for science!
Poland-Japan symposium on spatio-temporal self-organization 2022Jitka had a talk as a guest speaker
On October 5 - 8, 2022, the teambuilding event "Běstvina 2022" took place for students of the 1st year of the Master's degree in Chemical Engineering and Bioengineering. The event was attended by 32 students who stayed for three nights at the UCT Prague camp base in Běstvina and traveled by bus on the excursion every day. The program included a total of 6 industrial excursions (Škoda Auto, Synthesia, Kemwater ProChemie, Pardubice Brewery, wastewater treatment plant in Kutna Hora) and a block of presentations by representatives of the research groups of our department. The event was organized by Jitka Čejková.
2022 Researchers’ Night theme: "All the Senses"The University of chemistry and technology Prague was also participating in the European Researchers Night this year . On 30 September 2022 from 5:00 p.m. the doors of scientific workplaces, universities, museums and other participating institutions were opened and visitors were allowed to see research presentations on the subject of All the Senses. This year, however, instead of showing her laboratory, Jitka presented "her" dog Ingo to the participants. The theme was "All the senses" and so she and the representatives of SVVP dog centre Jinonice showed how the guide dogs help the blind when they lack one sense. Jitka is training future guide dogs since 2021.
UCT Prague will celebrate its anniversaryThe University of Chemistry and Technology Prague celebrates its 70th anniversary this year. On this occasion, a paper (in Czech) by Jitka Čejková devoted to the Faculty of Chemical Engineering was prepared. First, the history of the faculty and the development of its departments is summarized. The faculty was established as the Faculty of Chemical Production, Automation and Economics in 1960 and it was renamed to the Faculty of Chemical Engineering in 1969. Further, the key scientists, teachers and deans are introduced and their contribution to the advancement of the faculty highlighted. The current offer of study programs (bachelor, master and doctoral) in both Czech and English is also listed.
Kick-off meeting of a new COST Action DYNALIFEToday, we had a kick-off meeting of a new COST Action titled "Information, Coding, and Biological Function: the Dynamics of Life" in Brussels. Jitka Čejková was elected as the Work Group 4 leader and Science communication coordinator.
European Centre for Living Technology (ECLT)On September 12-13, Jitka was invited to attended an exploratory workshop which was hosted at the European Centre for LivingTechnology (ECLT) in Venice. The focus areas were: The creation and exploration of living and life-like materials and The dynamics of systems for generalized health.
COST Action Chemobrionics Pisa Meeting 2022 COST Action Chemobrionics Pisa Meeting 2022 started today. Jitka and four students (Adriana Augustínová, Vojta Blahušek, Nina Nováková, Eliška Paulíková) attend this 3-day event full of interesting talks and discussions.
CongratulationsMany congratulations to Nina Nováková for successfully defending her bachelor thesis titled “Experimental study of the myelin figures growth”. Thank you, Nina, for your work and looking forward to the furter collaboration!
Myelin figures are long, thin cylindrical structures that usually grow as a dense tangle when water is added to the concentrated lamellar phase of certain surfactants. In our laboratory, we observed the growth of these figures, on the contrary, when the water evaporates from the system. The aim of this bachelor thesis was to experimentally study myelin figures growing from a decanol droplet in the presence of an aqueous solution of sodium decanoate depending on the presence of different types of salts.
Summer school for high school teachers and studentsOur lab was traditionally involved as well
International students in our labIt was our pleasure to host Ecaterina Laura Cioban - Erasmus student from Romania. She spent several weeks in our laboratory working on liquid marbles. And now George Loustas - an IAESTE student from Greece - will continue his experiments with liquid marbles.
Holiday The head of the Droplet laboratory moved into the wild to study droplets...
Master's graduations took place on Wednesday, June 22, 2022. At the same time, the Betlemská Chapel hosted a ceremonial award with the medals of the Faculty of Chemical Engineering of three outstanding personalities who, with their scientific, pedagogical or organizational activities, contributed to the development of our faculty. Dean of the faculty prof. Michal Přibyl handed over the medal personally to doc. Pavel Chuchvalec from the Department of Physical Chemistry, doc. Jitka Čejková from the Department of Chemical Engineering and doc. Vladimír Scholtz from the Department of Physics and Measurement Technology.
Congratulations Many congratulations to Vojta Blahušek for successfully defending his bachelor thesis titled “Experimental study of mechanical properties of liquid marbles”. Thank you Vojta for your work and all the best for your future!
Takashi Ikegami in PragueDon't miss a talk by my colleague and friend
The Second Workshop on Chemistry and Artificial Life FormsWe are looking forward to your abstracts
Chemobrionics at SSCHE 2022Jitka presented the work of Mathis Leemann
Vojta Blahušek's poster
Central Saint Martins’ Digital Innovation SeasonWatch on the talk record on YouTube
Talks on bio-robots & artificial lifeformsPlease join us at 13:30pm CEST on Tuesday 10th May
Guide Dogs Weekand a new puppy of a future guide dog in our office
Call for abstractsWe are organizing the Second Workshop on Chemistry and Artificial Life Forms at ALIFE 2022
Academia Film OlomoucOur Chemobrionics film is one of the 17 films in a competitive selection of the best short films!
Chemobrionics and Systems ChemistryChemSystemsChem editorial by guest editors J.Čejková and J.Cartwright
From Cells to SocietiesWe organise a workshop at the International Conference on Learning Representations 
Students Scientific Conference SVK 2021Congratulations to Mathis Leeman, Nina Nováková and Vojta Blahušek for their great presentations at Student Scientific Conference SVK 2021. Today Mathis presented his results on chemical gardens, Nina on myelin figures and Vojta on liquid marbles. Well done, keep going!
Chemobrionics filmIf you have a garden and a library, you have everything you need
Our interanational student Mathis Leemann from Switzerland made a short film titled "Chemobrionics". This film had a world premiere today at the 25th Ji.hlava International Documentary Film Festival in the section Fascinations: Exprmntl.cz.
The title of this 5-min length audio-visual chemobrionics related project is a quotation by Cicero and it was chosen with the aim to show, that in the same way as Roman garden was designed for thinking, philosophizing and discourse, the chemical gardens can also open the door to philosophical questions such as what life is and how it originated, how we distinguish the biological systems from their chemical counterparts. Our video focuses on showing the beauty of silicate chemical gardens composed of plant-like tubular structures made of metal salts placed in a water glass. The viewer is be puzzled by the hypnotic slow growth of the structures and the manifold of colors they can produce. Tiny aerial air bubbles, flowing inner solutions, thick and alien-like structures changing colors let the audience perplexed, dreamy, wondering why nature is presenting such delightful sight. Furthermore, extracts of Doctor Faustus by Thomas Mann, The Origin of Life by John Desmond Bernal and Mechanism of life by Stéphane Leduc are added to deepen the experience. The inspiration for this audio background was taken from Julyan Cartwright’s works focused on the chemical gardens, their history and mentions in the literature.
- Director and producer: Jitka Čejková
- Editor: Mathis Leemann
- Camera operator: Mathis Leemann, Jan Havlík
- Experiments: Mathis Leemann, Jan Havlík, Saniya Ustunn
- Voice: Declan Garvey
- Music: Chopin - Raindrop Prelude (Op. 28 No. 15), performed by Petr Mazúr
This film is based upon work from COST Action CA17120, supported by COST (European Cooperation in Science and Technology). COST is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.
Jan Spitzer Jan Spitzer, a PhD in Physical Chemistry from Queen Elizabeth College at the University of London, has had a long career in chemistry and polymer science, as Associate Professor, and Research and Development Manager in synthetic latex industry. He is the author or coauthor of numerous peer-reviewed papers, technical articles, and book chapters. He studied University of Chemistry and Technology Prague and he visited after many years his alma mater today. It was our honour to be his guide and get his recent book How Molecular Forces and Rotating Planets Create Life - The Emergence and Evolution of Prokaryotic Cells.
Book reviewby Jitka Čejková in Artificial life journal
ISAL 2021 Distinguished Early-Career Investigator AwardThe International Society for Artificial Life announced the winners of the 2021 ISAL Awards. The awards were presented to recipients during the online 2021 Conference on Artificial Life organised in Prague. I am very honoured that one of the awards went to also to me!
Distinguished Early-Career Investigator Award - to recognize an individual who is early in their career, but has already made important contributions to the field of Artificial Life.
Alan Dorin said during the ceremony: "Jitka is a strong contributor to the ALife domain, both technically, and to the ALife community. This year, as you can see, she has done a fantastic job of organising a specially themed ALife conference, building on the 100th anniversary of the word "robot". She put together a fabulous book, soon to be released, of essays by a wide range of scientists, on the play RUR, and she is working hard behind the scenes to build links and bridges across the ALife community. On the technical side, she is prominent in chemical robotics, with exciting ways to apply to ALife. She applies minimal cognition principles to chemical robotics Her work has led to some creative droplet experiments, which have re-vitalized the "wet" ALife tradition."
ALIFE 2021we are organising a virtual conference on artificial life