The Lutetium ProjectHere's the second episode in our series "Experiments in music", where bouncing droplets become walkers! Come back to us in three weeks for the next episode! ↓ More infos and links in the description! ↓
Written and produced by: Guillaume Durey, Mathias Kasiulis
Directed and edited by: Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris
Dual walkers: drops and wavesThe Lutetium Project2016-10-25 | Here's the second episode in our series "Experiments in music", where bouncing droplets become walkers! Come back to us in three weeks for the next episode! ↓ More infos and links in the description! ↓
Written and produced by: Guillaume Durey, Mathias Kasiulis
Directed and edited by: Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris
---------------------------------------------------------------------The puzzling physics of sandThe Lutetium Project2020-11-10 | Sand, is it a solid or a liquid? ⏳ How come it flows, but we can walk on it? In this last video from The Lutetium Project, we explore the puzzling physics of sand! ↓ More infos and links in the description! ↓
--------------------------------------------------------------------- RELATED PUBLICATIONS:
Étienne Guyon, Jean-Yves Delenne, and Farhang Radjai, Built on Sand, The MIT Press (2020), https://mitpress.mit.edu/books/built-sand
Pierre-Gilles de Gennes in The physics of the bag of marbles, on the video library of the CNRS (1997), http://videotheque.cnrs.fr/doc=264 (the language can be switched to english)
Evelyne Kolb, PMMH laboratory, for the photoelastic grains, https://blog.espci.fr/evelyne/home/
Collective Effects in Soft Matter team, Gulliver laboratory, for the high-speed camera https://www.ec2m.espci.fr/home/
Paul Boniface, Espace des Sciences Pierre-Gilles de Gennes, https://www.groupe-traces.fr/membre/paul-bonifaec/
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris Fonds ESPCI Paris – fonds-espci-paris.orgWalking grainsThe Lutetium Project2020-11-03 | To a statistical physicist, a flock of birds is just like... a very peculiar liquid. 🐦 To better understand this analogy, Olivier Dauchot, PhD, mimicks their behavior in his lab... with walking grains! Confused yet? ↓ More info and links in the video description↓
--------------------------------------------------------------------- MORE ABOUT THE INTERVIEWEE :
Olivier Dauchot is a Belgian-born physicist, who graduated from the Ponts et Chaussées engineering school before doing a PhD in physics at Université Pierre et Marie Curie. He started doing research at the Saclay center of CEA, where he worked on dynamical systems, turbulence, and granular materials. Since 2011, he is a CNRS researcher (Directeur de Recherche) and works at the Gulliver lab, at ESPCI, where he started experiments on non-living active matter like the walking grains. There, he led the Collective Effects in Soft Matter (EC2M) team, an interdisciplinary team that worked on topics ranging from liquid crystals in confined geometries, to producing synthetic platelets, or avalanches of micrometric particles. At the meeting point of experiments and theory, Olivier Dauchot (now head of the Gulliver lab) currently works on the solid phases of active matter, the glass transition of liquids, and the rheology of granulars.
Olivier Dauchot on Twitter: twitter.com/odauchot?lang=fr The Gulliver lab: https://www.gulliver.espci.fr/?-home-
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--------------------------------------------------------------------- STRUCTURE OF THE VIDEO:
00:00 Collective motion: a physics problem? 01:30 Non-living experiments of collective motion 02:19 Theoretical models 03:45 Thermodynamic equilibrium 04:43 How to make an active particle 07:16 From single walkers to collective motion 08:45 Velocity alignment mechanisms 10:48 Crowding active particles 11:20 The crystallisation transition 12:14 Crystallization of active particles 14:40 Towards living systems? 15:49 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir/le-fonds-de-l-espci/
---------------------------------------------------------------------Light at your fingertipsThe Lutetium Project2020-10-27 | Fingerprints are used to identify criminals, but stop being reliable when damaged. How can we still read them? 🔎 With a state-of-the art imaging technique that shows their inside! Mystery solved, thanks to Egidijus Auksorius, PhD. ↓ More infos and links in the description ↓
--------------------------------------------------------------------- MORE ABOUT THE INTERVIEWEE :
Egidijus Auksorius graduated in physics from the University of Vilnius. He received the Ph.D. degree in physics from Imperial College London for work on Fluorescence lifetime imaging and super-resolution STED microscopy. He then worked as a Research Fellow at Harvard Medical School in Boston and the Institute Langevin in Paris on Full-Field Optical Coherence Tomography (FF-OCT). He is currently a Principal Investigator at the Centre for Physical Sciences and Technology in Vilnius and a Senior Researcher at the Polish Academy of Science in Warsaw, Physical Optics and Biophotonics Group. His current research interests include the development and application of FF-OCT for eye imaging.
--------------------------------------------------------------------- FEATURED ARTICLE:
Egidijus Auksorius, Kiran B. Raja, Berkay Topcu, Raghavendra Ramachandra, Christoph Busch, Claude A. Boccara, Compact and Mobile Full-Field Optical Coherence Tomography Sensor for Subsurface Fingerprint Imaging, IEEE Access (2020) ieeexplore.ieee.org/document/8957575
--------------------------------------------------------------------- STRUCTURE OF THE VIDEO:
00:00 Volume imaging and echography 02:02 Uses of fingerprints 02:49 Total internal reflection, usual and frustrated 03:42 Standard fingerprint imaging and beyond 05:28 White light interferometry 07:05 Full-field optical coherence tomography 08:58 Application to fingerprints 10:26 Depth limitation due to scattering 10:54 Multiple scattering 12:00 Overcoming the depth limitation 13:04 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir/le-fonds-de-l-espci/
---------------------------------------------------------------------How to make a miniature riverThe Lutetium Project2020-10-20 | What if we recreated rivers in the lab, to better understand them in real life? 🏞️ This the PhD work of Anaïs Abramian! She takes us on a tour of this model experiment, at the crossroads between physics and geology! ↓ More infos and links in the description! ↓
Anaïs Abramian is an alumna of ENS Lyon. She obtained a master's degree in liquid state physics from École Normale Supérieure. She conducted her PhD thesis at Institut de Physique du Globe de Paris, as a member of the team of Geological Fluid Dynamics. She defended in 2018; her thesis was titled "Self-organisation of sediment transport in alluvial rivers." She then joined Institut Jean le Rond d'Alembert as a postdoctoral researcher in 2019. Her research now focuses on cohesive granular materials.
Anaïs Abramian, Olivier Devauchelle & Eric Lajeunesse, Streamwise streaks induced by bedload diffusion, Journal of Fluid Mechanics, 863, 601 (2019) doi.org/10.1017/jfm.2018.1024
--------------------------------------------------------------------- VIDEO BREAKDOWN:
00:00 Different sizes, same flows 02:47 Making a river in the lab 05:02 A model experiment 06:43 Measuring the topography of the river 07:23 Refraction of light 08:28 Sediments shape rivers 10:37 Diffusion and Brownian motion 11:39 Nature and role of the diffusion of grains 13:56 From model experiments to real rivers 15:36 Conclusion
Produced by:
Guillaume Durey, Mathias Kasiulis
, Quentin Magdelaine
This video was shot on September 23rd, 2017.
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The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by:
PSL Research University – https://www.univ-psl.fr
ESPCI Paris – https://www.espci.fr
Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris
---------------------------------------------------------------------Waltzing defectsThe Lutetium Project2020-10-13 | This week on the Lutetium Project: music & microscopy! 🔬 Polarized light reveals the flow and glow of liquid crystals and their intriguing walzting defects... ↓ More infos and links in the description! ↓
--------------------------------------------------------------------- RELATED ARTICLE:
Alexandre Darmon, Michael Benzaquen, David Seč, Simon Čopar, Olivier Dauchot et Teresa Lopez-Leon Waltzing route toward double-helix formation in cholesteric shells Proceedings of the National Academy of Sciences, 113, 34, 9469-9474, 2016 pnas.org/content/113/34/9469.short
Original footage: Guillaume Durey, Alexandre Darmon
Original soundtrack: Julien Mazet
Visual identity: Juliette Nier
Theme music: Pierre David
Written and produced by: Guillaume Durey, Quentin Magdelaine, Mathias Kasiulis
Directed and edited by: Guillaume Durey, Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL University – https://www.psl.eu ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – espci.org Fonds ESPCI Paris – fonds-espci-paris.orgThe orderly beauty of liquid crystalsThe Lutetium Project2020-10-06 | They're in everywhere in our screens, but what are liquid crystals? 🖥️ How are they liquid? Or crystalline? In this video, we discover the colourful physics of ordered fluids! ↓ More infos and links in the description! ↓
Teresa Lopez-Leon, Les cristaux liquides : quand l’ordre et le désordre se rencontrent, groupe Traces video (in French, 2017), youtube.com/watch?v=4r0LG46Fs9U
Collective Effects in Soft Matter team, Gulliver laboratory, https://www.ec2m.espci.fr/home/
Paul Boniface, Espace des Sciences Pierre-Gilles de Gennes, for his valuable advice, https://www.groupe-traces.fr/membre/paul-bonifaec/
Alexandre Darmon, former PhD student in the Gulliver lab, for his video of a phase transition in cholesteric liquid crystal shells. http://artinresearch.com
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris Fonds ESPCI Paris – fonds-espci-paris.orgWarm light versus cold lightThe Lutetium Project2020-09-29 | What's the difference between a LED and a lightbulb? 💡 Did you know there were two kinds of light to your life? In this video, we shed light on luminescence and incandescence! ↓ More infos and links in the description! ↓
Paul Boniface, Espace des Sciences Pierre-Gilles de Gennes, for the UV gun and fluorescent objects, https://www.groupe-traces.fr/membre/paul-bonifaec/
Sophie Norvez, Corinne Soulié, Chimie Moléculaire, Macromoléculaire, Matériaux, for the chemiluminescence reaction of the ruthenium complex
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris Fonds ESPCI Paris – fonds-espci-paris.orgImpacting dropletsThe Lutetium Project2020-09-22 | Our series "Experiments in music" returns with this long-awaited episode! 💧 Water drops, high-speed cameras and macro lenses: all we need to reveal the beauty of impacts on superhydrophobic surfaces! ↓ More infos and links in the description! ↓
--------------------------------------------------------------------- RELATED ARTICLE:
Pierre Chantelot, Ali Mazloomi Moqaddam, Anaïs Gauthier, Shyam S. Chikatamarla, Christophe Clanet, Ilya V. Karlin et David Quéré Water ring-bouncing on repellent singularities Soft Matter, 14, 2227-2223, 2018 pubs.rsc.org/en/content/articlelanding/2018/sm/c7sm02004j
Original footage: Pierre Chantelot, Quentin Magdelaine, Guillaume Durey
Original soundtrack: Julien Mazet
Visual identity: Juliette Nier
Theme music: Pierre David
Written and produced by: Guillaume Durey, Quentin Magdelaine
Directed and edited by: Guillaume Durey, Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL University – https://www.psl.eu ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – espci.org Fonds ESPCI Paris – fonds-espci-paris.orgMicrofluidics Interviews #2: Paper-based microfluidicsThe Lutetium Project2020-09-15 | You don't need an expensive lab to do microfluidics! 🧬 In our last interview in this series, we learn how to make low-cost viral screening tests on paper chips with Laura Magro, PhD! ↓ More infos and links in the description ↓
--------------------------------------------------------------------- MORE ABOUT THE INTERVIEWEE :
Laura Magro is an alumnus of ESPCI Paris, and of Université Paris Diderot, where she obtained a master's degree in Complex Systems, with a major in Microfluidics. In 2016, she defended her thesis, titled "Paper microfluidics : from liquid flow studies to Ebola virus diagnostics in Guinea", that was conducted in the Microfluidics, MEMs and Nanostructures team of the Gulliver lab, at ESPCI Paris. She joined CEEBIOS in 2017, a company that promotes the development of biomimetic technologies applied to eco-responsible innovation. She has been the company's deputy director in charge of scientific development since 2018.
--------------------------------------------------------------------- FEATURED ARTICLES:
Laura Magro, Camille Escadafal, Pierre Garneret, Béatrice Jacquelin, Aurélia Kwasiborski, Jean-Claude Manuguerra, Fabrice Monti, Anavaj Sakuntabhai, Jessica Vanhomwegen, Pierre Lafayee & Patrick Tabeling, Paper microfluidics for nucleic acid amplification testing (NAAT) of infectious diseases, Lab Chip, 2017,17, 2347-2371 pubs.rsc.org/en/content/articlelanding/2017/lc/c7lc00013h/unauth#!divAbstract
Laura Magro, Béatrice Jacquelin, Camille Escadafal, Pierre Garneret, Aurélia Kwasiborski, Jean-Claude Manuguerra, Fabrice Monti, Anavaj Sakuntabhai, Jessica Vanhomwegen, Pierre Lafaye & Patrick Tabeling, Paper-based RNA detection and multiplexed analysis for Ebola virus diagnostics, Scientific Reports volume 7, Article number: 1347 (2017) nature.com/articles/s41598-017-00758-9
--------------------------------------------------------------------- VIDEO BREAKDOWN:
00:00 Microfluidics: too unpractical? 01:34 Advantages of paper-based microfluidics 02:23 Simple examples of paper chips 05:22 Paper-based diagnosis 06:18 Pathogen detection methods: an overview 07:17 Advantages of nucleic acid testing 08:13 From the lab to the field: Ebola testing 09:10 Towards diagnoses on smartphones? 10:18 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – fonds-espci-paris.org
---------------------------------------------------------------------Microfluidics Interviews #1: In situ chemistryThe Lutetium Project2020-09-08 | Can you create a drug directly in a living organism? 💊 Yes, by combining microfluidics with acoustics and organic chemistry! We interview Marine Bézagu, PhD, to know more. ↓ More infos and links in the description ↓
--------------------------------------------------------------------- MORE ABOUT THE INTERVIEWEE:
Marine Bézagu is an alumnus of ESPCI Paris, and of Université Pierre et Marie Curie, where she obtained a master's degree in Molecular Chemistry. In 2015, she defended her PhD thesis, titled "Ultrasound-induced chemical reactions and local mixing : towards targeted chemotherapy", that was conducted between the Laboratoire de Chimie Organique, the Gulliver lab and the Institut Langevin at ESPCI Paris. She kept working on this project as a post-doctoral researcher at Institut Langevin for an extra year. Between 2016 and 2020, she worked as a research scientist in chemical formulation for ADOCIA, a company specialized in developing innovative formulations for therapeutical molecules. She recently moved to a Research & Development Project Manager position at InnovaFeed, a young biotech company that commercializes insect proteins.
--------------------------------------------------------------------- FEATURED ARTICLE:
Marine Bezagu, Claudia Errico, Victor Chaulot-Talmon, Fabrice Monti, Mickael Tanter, Patrick Tabeling, Janine Cossy, Stellios Arseniyadis, & Olivier Couture, High Spatiotemporal Control of Spontaneous Reactions Using Ultrasound-Triggered Composite Droplets, J. Am. Chem. Soc. 2014, 136, 20, 7205–7208 pubs.acs.org/doi/abs/10.1021/ja5019354
--------------------------------------------------------------------- VIDEO BREAKDOWN:
00:00 Targeted drug delivery 01:27 In situ chemistry: principle 03:33 Encapsulation method 05:30 Triggering the reaction 06:55 Model experiment: principle 07:43 Fluorescence 07:57 Model experiment: realization 08:39 Local synthesis of anticancer drugs 09:46 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – fonds-espci-paris.org ---------------------------------------------------------------------Were back for Season 2!The Lutetium Project2020-09-01 | Hey! Remember us? Surprise, we're back for Season 2! ⏪ This fall, don't miss our weekly new videos combining experimental research, artistic creation and science outreach! ↓ More infos and links in the description! ↓
Written by: Guillaume Durey, Hoon Kwon, Mathias Kasiulis
Hosted by: Guillaume Durey (and Hoon Kwon)
Produced by: Guillaume Durey, Mathias Kasiulis, Quentin Magdelaine
Visual identity, set design: Juliette Nier
Original music, opening titles: Pierre David
This video was shot on January 19th, 2019.
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris Fonds ESPCI Paris – fonds-espci-paris.org
---------------------------------------------------------------------Swimming dropletsThe Lutetium Project2017-12-20 | Have you ever seen self-propelled swimming droplets? Using microfluidics, and with a bit of physical chemistry, it can be done! It's a new Experiment in music from The Lutetium Project! ↓ More infos and links in the description! ↓
--------------------------------------------------------------------- RELATED ARTICLE:
Ziane Izri, Marjolein N. van der Linden, Sébastien Michelin et Olivier Dauchot, Self-Propulsion of Pure Water Droplets by Spontaneous Marangoni-Stress-Driven Motion Physical Review Letters, 113, 248302 , 2014 DOI: 10.1103/PhysRevLett.113.248302 journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.248302
Original footage: Ziane Izri, Marjolein N. van der Linden
Original soundtrack: Julien Mazet
Visual identity: Juliette Nier
Theme music: Pierre David
Written and produced by: Guillaume Durey, Mathias Kasiulis
Directed and edited by: Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir/fonds-espci-paris-448/
---------------------------------------------------------------------Microfluidics Adventures #3: Microfluidic chipsThe Lutetium Project2017-11-29 | The Lutetium Project is back with part three of our Microfluidics Adventures! We're gonna show you microfluidic chips as you've never seen them before. Let’s mix some microdroplets! ↓ More infos and links in the description ↓
--------------------------------------------------------------------- RELATED BOOK:
Patrick Tabeling, Introduction to microfluidics, Oxford University Press (2005) https://books.google.fr/books/about/Introduction_to_Microfluidics.html
--------------------------------------------------------------------- RELATED ARTICLES :
Lucas Frenz, Abdeslam El Harrak, Matthias Pauly, Sylvie Bégin-Colin, Andrew Griffiths, Jean-Christophe Baret Droplet-Based Microreactors for the Synthesis of Magnetic Iron Oxide Nanoparticles Angewandte Chemie International Edition 47: 6817–6820 (2008) http://onlinelibrary.wiley.com/doi/10.1002/anie.200801360/full
Jeremy Agresti, Eugene Antipov, Adam Abate, Keunho Ahn, Amy Rowat, Jean-Christophe Baret, Manuel Marquez, Alexander Klibanov, Andrew Griffiths and David Weitz Ultrahigh-throughput screening in drop-based microfluidics for directed evolution PNAS (2010), doi: 10.1073/pnas.0910781107 http://www.pnas.org/content/107/9/4004.short
Philippe Nghe, Biochemistry Lab https://www.lbc.espci.fr/ Paul Boniface, Espace des sciences Pierre-Gilles de Gennes espgg.org Fabrice Monti, Microfactory SAS, http://www.microfactory.eu/ MécaWet team, PMMH lab, https://www.pmmh.espci.fr/~jbico/ EC2M team, Gulliver lab, https://www.ec2m.espci.fr/ Perrine Franquet, Institut Pierre-Gilles de Gennes pour la microfluidique https://www.institut-pgg.fr/
--------------------------------------------------------------------- STRUCTURE OF THE VIDEO:
00:00 Using the chip 01:30 Output: microdroplets! 02:28 Why make microdroplets? 03:24 Laminar and turbulent flows 05:03 Mixing at the microscale 05:36 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir...Microfluidics Adventures #2: How to build a miniature worldThe Lutetium Project2017-05-30 | The Microfluidics Adventures of the Lutetium Project, part two! Microfabrication 101: you’ll discover how microfluidics systems are made, from start to finish! ↓ More infos and links in the description ↓
MécaWet team, PMMH lab https://www.pmmh.espci.fr/~jbico/page_perso_en.html Mathilde Reyssat, Bruno Teste, Kamel Khelloufi, EC2M team, Gulliver lab https://www.ec2m.espci.fr/home/ Perrine Franquet, Institut Pierre-Gilles de Gennes pour la microfluidique institut-pgg.com
--------------------------------------------------------------------- STRUCTURE OF THE VIDEO:
00:00 A lab on a chip? 01:16 Fabrication steps 02:50 Making the mold in a clean room 03:57 Molding the circuit into PDMS 04:55 Gluing the circuit onto glass with plasma 05:23 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir...Microfluidics Adventures #1: Physics at the microscaleThe Lutetium Project2017-05-02 | The Microfluidics Adventures of the Lutetium Project, part one! In this first video, we’ll tackle the physics of the microscopic world. You’ll know why the laws of physics seem so weird at the microscale... ↓ More infos and links in the description ↓
Bojan Ilic, Harold Craighead, Slava Krylov, Wageesha Senaratne, Christopher Ober, Pavel Neuzil, Attogram detection using nanoelectromechanical oscillators, Journal of Applied Physics 95, 3694 (2004) http://aip.scitation.org/doi/abs/10.1063/1.1650542
Louis Laberge Lebel, Brahim Aissa, My Ali El Khakani, Daniel Therriault, Ultraviolet-Assisted Direct-Write Fabrication of Carbon Nanotube/Polymer Nanocomposite Microcoils, Advanced Materials 22, 592 (2010) http://onlinelibrary.wiley.com/doi/10.1002/adma.200902192/abstract
Cornell Chronicle, Smallest guitar, about the size of a human blood cell, illustrates new technology for nano-sized electromechanical devices (1997) http://www.news.cornell.edu/stories/1997/07/worlds-smallest-silicon-mechanical-devices-are-made-cornell
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir/le-fonds-de-l-espci/
---------------------------------------------------------------------Bursting dropletsThe Lutetium Project2017-03-07 | Music for a mesmerizing research experiment, which just made the cover of the journal Physical Review Letters, and which you can even do at home! ↓ More infos and links in the description! ↓
Original footage: Ludovic Keiser, Hadrien Bense, Guillaume Durey, Hoon Kwon
Original soundtrack: Julien Mazet
Visual identity: Juliette Nier
Theme music: Pierre David
Written and produced by: Guillaume Durey, Quentin Magdelaine, Mathias Kasiulis
Directed and edited by: Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir/le-fonds-de-l-espci/Droplets with a twistThe Lutetium Project2017-01-24 | Always dreamed of coiling thin fibers around tiny droplets? You’ll end up a specialist of elastocapillarity after our first interview! Featuring Pr. Kari Dalnoki-Veress. ↓ More infos and links in the description ↓
--------------------------------------------------------------------- MORE ABOUT THE INTERVIEWEE :
Kari Dalnoki-Veress has been a Professor at McMaster University, Ontario, since 2010. There, he leads the Dalnoki-Veress Lab, a research group that studies experimental soft matter, and in particular the properties of polymers and living systems. The topics he has worked on range from the mechanical properties of nematods like C. Elegans, to the glass transition of polymers, but also include elastocapillarity in fibers and films of polymers.
--------------------------------------------------------------------- FEATURED ARTICLE:
Rafael D. Schulman, Amir Porat, Kathleen Charlesworth, Adam Fortais, Thomas Salez, Elie Raphaël & Kari Dalnoki-Veress, Elastocapillary bending of microfibers around liquid droplets, Soft Matter (2017) http://pubs.rsc.org/en/content/articlelanding/2016/sm/c6sm02095j
Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada http://kdvlab.net
Physico-Chimie Théorique, Gulliver, UMR CNRS 7083, ESPCI Paris, PSL Research University https://www.gulliver.espci.fr/
--------------------------------------------------------------------- RELATED WORKS:
Hervé Elettro, Sébastien Neukirch, Fritz Vollrath & Arnaud Antkowiak, In-drop capillary spooling of spider capture thread inspires hybrid fibers with mixed solid–liquid mechanical properties, PNAS (2016) http://www.pnas.org/content/113/22/6143
Romain Labbé & Camille Duprat, Drainage between two elastic fibers (in preparation)
--------------------------------------------------------------------- STRUCTURE OF THE VIDEO:
00:00 Solids and elasticity 01:51 Principle of elastocapillarity 04:22 Wetting 05:56 Coiling a fiber around a droplet 07:12 A few other experiments 09:25 Coiling a fiber around... a bubble ! 12:32 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris le Fonds ESPCI Paris – https://www.espci.fr/fr/nous-soutenir/le-fonds-de-l-espci/
---------------------------------------------------------------------On the surface of liquidsThe Lutetium Project2016-12-07 | Why does a jet of water break into droplets? How do you make perfectly spherical droplets? We’re talking surface tension in this first video in our studio! Come back to us next year in early January for our first interview! ↓ More infos and links in the description! ↓
--------------------------------------------------------------------- RELATED ARTICLES :
Pierre-Gilles de Gennes, Françoise Brochard-Wyart & David Quéré, Capillarity and wetting phenomena: drops, bubbles, pearls, waves. Springer (2004) http://www.springer.com/us/book/9780387005928
Christophe Clanet, Cours de mécanique des fluides, ESPCI Paris
Antonin Marchand, Joost H. Weijs, Jacco H. Snoeijer & Bruno Andreotti, Why is surface tension a force parallel to the interface? American Journal of Physics, 79, 999 (2011) http://aapt.scitation.org/doi/10.1119/1.3619866
Joseph Plateau, Mémoire sur les phénomènes que présente une masse liquide et soustraite à l’action de la pesanteur, Nouveaux mémoires de l’Académie Royale des Sciences et Belles-Lettres de Bruxelles, 16, 1 (1843) https://books.google.fr/books?id=b1kTAAAAQAAJ&pg=PA3&lpg=PA3&ots=ynxnWosqjK&sig=kqVt9-duwGPRYqU3G6UkrawWfbU&hl=fr&sa=X&ved=0ahUKEwilm4L619zQAhWGECwKHYUTDjEQ6AEIMTAG#v=onepage
Masahiro I. Kohira, Yuko Hayashima, Masaharu Nagayama & Satoshi Nakata, Synchronized self-motion of two camphor boats, Langmuir 17, 7124 (2001) http://pubs.acs.org/doi/abs/10.1021/la010388r
--------------------------------------------------------------------- STRUCTURE OF THE VIDEO:
00:00 The surface tension of liquids 01:30 Gravity versus surface tension 02:09 Plateau droplets 02:42 Rayleigh-Plateau instability 03:15 Why surface "tension"? 05:00 Surfactants and Marangoni flows 07:03 Conclusion
The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris
A group of agitated molecules in a disordered state is the definition of a fluid phase, meaning that it applies both to liquids and gases. A more precise definition of liquids would be the following: a dense group of agitated molecules in a disordered state, where the intermolecular distance is of the same order of magnitude as the molecular size.
Carlo Marangoni is not actually the first to study the so-called "Marangoni flows". James Thomson explained correctly these flows for the first time in 1855, and some works could even date back to 1686. Source: L. E. Scriven & C.V. Sternling, The Marangoni Effects, Nature, 187, 186 (1960) nature.com/articles/187186a0
---------------------------------------------------------------------The transition to turbulenceThe Lutetium Project2016-11-15 | Classic, yet beautiful fluid dynamics! This is the third entry in our series "Experiments in music"... and it's going to be the last for some time: next video on Dec 6th from our studio! ↓ More infos and links in the description! ↓
--------------------------------------------------------------------- RELATED ESPCI PARIS COURSE:
Bico, J., Reyssat, M., Bremond, N., & Fermigier, M. Vélocimétrie laser : Étude du sillage d'un obstacle trapézoïdal. https://www.pmmh.espci.fr/~jbico/TP/L...
--------------------------------------------------------------------- RELATED HISTORICAL ARTICLE:
Reynolds, O. (1883). An Experimental Investigation of the Circumstances Which Determine Whether the Motion of Water Shall Be Direct or Sinuous, and of the Law of Resistance in Parallel Channels. Philosophical Transactions of the Royal Society of London, 174(0), 935–982. http://rstl.royalsocietypublishing.org/content/174/935
Written and produced by: Guillaume Durey, Mathias Kasiulis
Directed and edited by: Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris
---------------------------------------------------------------------Never-ending bouncing dropletsThe Lutetium Project2016-10-04 | Here's the first episode in our series "Experiments in music", focusing on crystals of bouncing droplets! Come back to us in three weeks for the next episode! ↓ More infos and links in the description! ↓
Written and produced by: Guillaume Durey, Mathias Kasiulis
Directed and edited by: Hoon Kwon
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris
---------------------------------------------------------------------The Lutetium Project: TeaserThe Lutetium Project2016-09-16 | And here we go! Here's a quick teaser of what you can expect to see on the Lutetium Project YouTube channel every three weeks! ↓ More infos and links in the description! ↓
--------------------------------------------------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – espgg.org ESPCI Alumni – https://espci.alumni.paris