Yannick Geiger
@yannickgeiger.bsky.social
🇫🇷-🇩🇪 Systems chemist in Strasbourg (FR, systemschemistry-lab.chimie.unistra.fr). Chirality, (auto)catalysis, driven processes, supramol. assemblies, reaction & systems mechanisms. Also athletics, cooking & cinema.
Pinned
Yannick Geiger
@yannickgeiger.bsky.social
· May 28
Vacancies – Systems chemistry lab
systemschemistry-lab.chimie.unistra.fr
Job Alert 📢📢📢 Systems chemistry lab is hiring! We are looking for motivated candidates to do a PhD with us. It will be on the effect of (large) aggregation on chemical reaction networks, more details here: systemschemistry-lab.chimie.unistra.fr/vacancies/. Repost very much appreciated 🙏
Reposted by Yannick Geiger
How to select primitive / synthetic replicators based their photocatalysis? Check out our manuscript just published in @natcatal.nature.com :
www.nature.com/articles/s41...
#OoL #Origins #Prebiotic #Evolution
www.nature.com/articles/s41...
#OoL #Origins #Prebiotic #Evolution
Selection for photocatalytic function through Darwinian evolution of synthetic self-replicators - Nature Catalysis
Darwinian evolution has shaped life on our planet through natural selection. Here, the authors report on the combination of self-replication, mutation and protometabolism in an out-of-equilibrium abio...
www.nature.com
October 27, 2025 at 11:19 AM
How to select primitive / synthetic replicators based their photocatalysis? Check out our manuscript just published in @natcatal.nature.com :
www.nature.com/articles/s41...
#OoL #Origins #Prebiotic #Evolution
www.nature.com/articles/s41...
#OoL #Origins #Prebiotic #Evolution
Reposted by Yannick Geiger
Interesting opinion article! Important discussion to be had as well.
Who Decides What Is Prebiotically Plausible? The Risks of Premature Constraints in Origin-of-Life Research www.mdpi.com/3555090 #mdpilife via @Life_MDPI
Who Decides What Is Prebiotically Plausible? The Risks of Premature Constraints in Origin-of-Life Research www.mdpi.com/3555090 #mdpilife via @Life_MDPI
www.mdpi.com
October 29, 2025 at 8:12 PM
Interesting opinion article! Important discussion to be had as well.
Who Decides What Is Prebiotically Plausible? The Risks of Premature Constraints in Origin-of-Life Research www.mdpi.com/3555090 #mdpilife via @Life_MDPI
Who Decides What Is Prebiotically Plausible? The Risks of Premature Constraints in Origin-of-Life Research www.mdpi.com/3555090 #mdpilife via @Life_MDPI
Reposted by Yannick Geiger
Past and present collide as @rjmayer.bsky.social and @yannickgeiger.bsky.social, now both leading groups of their own, meet @noeminogal.bsky.social at @esor2025.bsky.social in beautiful Padova.
September 9, 2025 at 10:57 PM
Past and present collide as @rjmayer.bsky.social and @yannickgeiger.bsky.social, now both leading groups of their own, meet @noeminogal.bsky.social at @esor2025.bsky.social in beautiful Padova.
Just starting at #ESOR2025 in Padova. This is the first time I get a booklet about liqueurs at a conference, incl. cocktail recipes...! 🍸
September 9, 2025 at 7:49 AM
Just starting at #ESOR2025 in Padova. This is the first time I get a booklet about liqueurs at a conference, incl. cocktail recipes...! 🍸
Reposted by Yannick Geiger
Our new preprint 📑 about oscillating chemical reactions ⚗ just came out! arxiv.org/abs/2508.15273
We introduce tools 🛠️ that expand the scope of oscillators that can be analyzed, and use them to extract a lot of new qualitative and quantitative insights about oscillating chemical reactions! 1/3
We introduce tools 🛠️ that expand the scope of oscillators that can be analyzed, and use them to extract a lot of new qualitative and quantitative insights about oscillating chemical reactions! 1/3
Stoichiometric recipes for periodic oscillations in reaction networks
Oscillatory chemical reactions are functional components in a variety of biological contexts. In chemistry, the construction and identification of even rudimentary oscillators remain elusive and lack ...
arxiv.org
August 22, 2025 at 6:10 AM
Our new preprint 📑 about oscillating chemical reactions ⚗ just came out! arxiv.org/abs/2508.15273
We introduce tools 🛠️ that expand the scope of oscillators that can be analyzed, and use them to extract a lot of new qualitative and quantitative insights about oscillating chemical reactions! 1/3
We introduce tools 🛠️ that expand the scope of oscillators that can be analyzed, and use them to extract a lot of new qualitative and quantitative insights about oscillating chemical reactions! 1/3
Reposted by Yannick Geiger
@uottawa.ca is hiring a Full Professor and Tier 1 CRC in Sustainable Catalyst Design. Ability to teach inorganic and organometallic chemistry especially welcome. Comes with dedicated funding, teaching reduction, and substantial startup funds. Ottawa is a great place to live!
tinyurl.com/bdcm5hw6
tinyurl.com/bdcm5hw6
Tier 1 Canada Research Chair in Sustainable Catalyst Design - Ottawa, Ontario (CA) job with University of Ottawa, Ontario CANADA | 12844053
The University of Ottawa invites applications for a Tier 1 Canada Research Chair (CRC) in Sustainable Catalyst Design. The successful candidate wil...
tinyurl.com
August 27, 2025 at 4:26 PM
@uottawa.ca is hiring a Full Professor and Tier 1 CRC in Sustainable Catalyst Design. Ability to teach inorganic and organometallic chemistry especially welcome. Comes with dedicated funding, teaching reduction, and substantial startup funds. Ottawa is a great place to live!
tinyurl.com/bdcm5hw6
tinyurl.com/bdcm5hw6
Reminder! Only few days left to apply for this nice opportunity to do a PhD with us.
Job Alert 📢📢📢 Systems chemistry lab is hiring! We are looking for motivated candidates to do a PhD with us. It will be on the effect of (large) aggregation on chemical reaction networks, more details here: systemschemistry-lab.chimie.unistra.fr/vacancies/. Repost very much appreciated 🙏
Vacancies – Systems chemistry lab
systemschemistry-lab.chimie.unistra.fr
June 23, 2025 at 7:42 AM
Reminder! Only few days left to apply for this nice opportunity to do a PhD with us.
Reposted by Yannick Geiger
Pumping molecules against a gradient without a pump?
Back-to-back with @boekhovenlab.bsky.social, we describe minimal systems that use chemical energy to transport molecules against a concentration gradient.
It started with a little shock!🧵
Us: shorturl.at/smQNF
Job's team: shorturl.at/zftps
Back-to-back with @boekhovenlab.bsky.social, we describe minimal systems that use chemical energy to transport molecules against a concentration gradient.
It started with a little shock!🧵
Us: shorturl.at/smQNF
Job's team: shorturl.at/zftps
June 5, 2025 at 4:19 PM
Pumping molecules against a gradient without a pump?
Back-to-back with @boekhovenlab.bsky.social, we describe minimal systems that use chemical energy to transport molecules against a concentration gradient.
It started with a little shock!🧵
Us: shorturl.at/smQNF
Job's team: shorturl.at/zftps
Back-to-back with @boekhovenlab.bsky.social, we describe minimal systems that use chemical energy to transport molecules against a concentration gradient.
It started with a little shock!🧵
Us: shorturl.at/smQNF
Job's team: shorturl.at/zftps
Job Alert 📢📢📢 Systems chemistry lab is hiring! We are looking for motivated candidates to do a PhD with us. It will be on the effect of (large) aggregation on chemical reaction networks, more details here: systemschemistry-lab.chimie.unistra.fr/vacancies/. Repost very much appreciated 🙏
Vacancies – Systems chemistry lab
systemschemistry-lab.chimie.unistra.fr
May 28, 2025 at 10:23 AM
Job Alert 📢📢📢 Systems chemistry lab is hiring! We are looking for motivated candidates to do a PhD with us. It will be on the effect of (large) aggregation on chemical reaction networks, more details here: systemschemistry-lab.chimie.unistra.fr/vacancies/. Repost very much appreciated 🙏
Reposted by Yannick Geiger
How can a cell control the size of its organelles?
Excited to share a mechanism to control droplet size we recently found.
a 🧵
www.nature.com/articles/s41...
Excited to share a mechanism to control droplet size we recently found.
a 🧵
www.nature.com/articles/s41...
April 25, 2025 at 12:32 PM
How can a cell control the size of its organelles?
Excited to share a mechanism to control droplet size we recently found.
a 🧵
www.nature.com/articles/s41...
Excited to share a mechanism to control droplet size we recently found.
a 🧵
www.nature.com/articles/s41...
A post-doc position in a very nice group & institute (I was there just two weeks ago) - apply, especially if you look also for a long-term position!
WE RECRUIT: 18-month post-doctoral position + attractive salary + institutional support and training for grant applications. Research topic: dynamic combinatorial chemistry, peptides, and mechanochemistry. @ibmm-balard.bsky.social @umontpellier.bsky.social @fredlamaty.bsky.social
April 29, 2025 at 1:19 PM
A post-doc position in a very nice group & institute (I was there just two weeks ago) - apply, especially if you look also for a long-term position!
Super happy that this important issue has found its way to IUPAC. If you are, even remotely, concerned by out-of equilibrium systems and/or molecular machines, please read this article and answer the polls!
The 2016 Nobel prize in chemistry was awarded 'for the design and synthesis of molecular machines'. Ironically, we do not know exactly what constitutes a molecular machine. With the ultimate goal of unifying definitions and standardising terminology, Iupac needs your help!
#ChemSky #ScienceSky
#ChemSky #ScienceSky
Take two polls to help Iupac define molecular machines
An Iupac committee wants your input to guide its recommendations for key terms in the field
www.chemistryworld.com
April 29, 2025 at 1:14 PM
Super happy that this important issue has found its way to IUPAC. If you are, even remotely, concerned by out-of equilibrium systems and/or molecular machines, please read this article and answer the polls!
First paper of Systems Chemistry Lab is out! Check out how Lunan achieved with @guillemonreals.bsky.social time-controlled formation and ageing of coacervates by using a volatile salt 👇 Congrats to all authors!
pubs.acs.org/doi/10.1021/...
pubs.acs.org/doi/10.1021/...
Timed Formation and Aging of Complex Coacervates Using a Volatile Salt
Biomolecular condensates are liquid droplets formed by liquid–liquid phase separation and play a role in a variety of cellular processes. In the past decade, there has been a growing interest in their...
pubs.acs.org
April 9, 2025 at 11:13 AM
First paper of Systems Chemistry Lab is out! Check out how Lunan achieved with @guillemonreals.bsky.social time-controlled formation and ageing of coacervates by using a volatile salt 👇 Congrats to all authors!
pubs.acs.org/doi/10.1021/...
pubs.acs.org/doi/10.1021/...
Woman belong into science as much as men do and deserve equal consideration and encouragement. Also in small daily things like how they are talked to. This testimony is really bewildering...
A friend included this anti-acknowledgement section on her PhD thesis. She also added the proposition: “Systematic bullying and undermining of girls and women in STEM starts early on and is the reason why they do not stay in science and related fields.”
Absurd we still need to go through this
🧪👩🔬
Absurd we still need to go through this
🧪👩🔬
March 11, 2025 at 12:45 PM
Woman belong into science as much as men do and deserve equal consideration and encouragement. Also in small daily things like how they are talked to. This testimony is really bewildering...
Reposted by Yannick Geiger
Bonjour Bluesky! 👋 N'hésitez pas à vous abonner à ce compte si vous souhaitez avoir les dernières informations du groupe thématique "chimie des origines" rattaché à la Division de Chimie Organique de la SCF @scf-dco.bsky.social.
Et visitez notre site web :
sites.google.com/view/gt-chim...
Et visitez notre site web :
sites.google.com/view/gt-chim...
GT Chimie des Origines
Le GT Chimie des Origines est un Groupe Thématique de la Société Chimique de France
sites.google.com
February 17, 2025 at 12:54 PM
Bonjour Bluesky! 👋 N'hésitez pas à vous abonner à ce compte si vous souhaitez avoir les dernières informations du groupe thématique "chimie des origines" rattaché à la Division de Chimie Organique de la SCF @scf-dco.bsky.social.
Et visitez notre site web :
sites.google.com/view/gt-chim...
Et visitez notre site web :
sites.google.com/view/gt-chim...
Reposted by Yannick Geiger
Reactions of ribose relevant to the origin of metabolism apparently occur in aqueous microdroplets but not in bulk water. Why not? Computations suggest it's electric fields.
Thanks @thijsstuyver.bsky.social and @javialra97.bsky.social for the great collab!
doi.org/10.1002/ceur...
Thanks @thijsstuyver.bsky.social and @javialra97.bsky.social for the great collab!
doi.org/10.1002/ceur...
February 10, 2025 at 7:52 PM
Reactions of ribose relevant to the origin of metabolism apparently occur in aqueous microdroplets but not in bulk water. Why not? Computations suggest it's electric fields.
Thanks @thijsstuyver.bsky.social and @javialra97.bsky.social for the great collab!
doi.org/10.1002/ceur...
Thanks @thijsstuyver.bsky.social and @javialra97.bsky.social for the great collab!
doi.org/10.1002/ceur...
Reposted by Yannick Geiger
We have a PhD position on reaction networks driven by aminoacyl phosphate esters funded from @ercresearch.bsky.social at @uni-freiburg.de.
Deadline for application is 20/03/25. More information can be found here: static1.squarespace.com/static/5fc39...
Deadline for application is 20/03/25. More information can be found here: static1.squarespace.com/static/5fc39...
February 3, 2025 at 6:44 AM
We have a PhD position on reaction networks driven by aminoacyl phosphate esters funded from @ercresearch.bsky.social at @uni-freiburg.de.
Deadline for application is 20/03/25. More information can be found here: static1.squarespace.com/static/5fc39...
Deadline for application is 20/03/25. More information can be found here: static1.squarespace.com/static/5fc39...
Reposted by Yannick Geiger
Looking for a stimulating conference on physical-organic chemistry ? We are organizing the 20th edition of ESOR from 9-12 September 2025 in Padova, Italy. Visit www.esor2025.com for info. Follow us on @esor2025.bsky.social to stay informed. #Chemsky. Reposts appreciated.
February 3, 2025 at 10:15 AM
Looking for a stimulating conference on physical-organic chemistry ? We are organizing the 20th edition of ESOR from 9-12 September 2025 in Padova, Italy. Visit www.esor2025.com for info. Follow us on @esor2025.bsky.social to stay informed. #Chemsky. Reposts appreciated.
Job alert⚡Come and work with me and Joseph! We're looking for someone with experience in electrochemistry to work as a postdoc in Strasbourg. You'll be on a cool project in a young and dynamic team 🙂
@yannickgeiger.bsky.social and I are jointly looking to hire a postdoc in Strasbourg @unistra.fr with a strong background in electrochemistry to develop a new concept for CO2 fixation. The 18-month contract is funded by Syensqo. Start date as soon as possible.
January 24, 2025 at 7:38 AM
Job alert⚡Come and work with me and Joseph! We're looking for someone with experience in electrochemistry to work as a postdoc in Strasbourg. You'll be on a cool project in a young and dynamic team 🙂
Reposted by Yannick Geiger
PhD projects available in a range of areas - something for everyone! Join us to do cool chemistry using the mechanical bond in catenanes and rotaxanes for real world applications in the shiny shiny new Molecular Sciences Building @uobchemistry.bsky.social 😊 Reposts appreciated! #chemsky
January 13, 2025 at 10:00 AM
PhD projects available in a range of areas - something for everyone! Join us to do cool chemistry using the mechanical bond in catenanes and rotaxanes for real world applications in the shiny shiny new Molecular Sciences Building @uobchemistry.bsky.social 😊 Reposts appreciated! #chemsky
Hello #ChemSky! New year, new lab, and now also with a new website: systemschemistry-lab.chimie.unistra.fr
Check out for what @guillemonreals.bsky.social and myself are up to in the Laboratory of Systems Chemistry 😀
Check out for what @guillemonreals.bsky.social and myself are up to in the Laboratory of Systems Chemistry 😀
Systems chemistry lab – Website of the Laboratory of Systems Chemistry at the University of Strasbourg
systemschemistry-lab.chimie.unistra.fr
January 14, 2025 at 8:48 AM
Hello #ChemSky! New year, new lab, and now also with a new website: systemschemistry-lab.chimie.unistra.fr
Check out for what @guillemonreals.bsky.social and myself are up to in the Laboratory of Systems Chemistry 😀
Check out for what @guillemonreals.bsky.social and myself are up to in the Laboratory of Systems Chemistry 😀
So glad this is out, congrats @alexblokhuis.bsky.social! Dimensionality analysis is going to be an unavoidable tool in mechanistic investigations of (presumably) complex chemical systems 🔥
Our companion paper was published for Christmas! ⛄🎄🧪, pdf: chemistry-europe.onlinelibrary.wiley.com/doi/pdf/10.1...
We illustrate new tools we developed exploiting dimensional information in reaction monitoring data, opening up new ways of doing kinetic and mechanistic studies. #chemsky #chemistry
We illustrate new tools we developed exploiting dimensional information in reaction monitoring data, opening up new ways of doing kinetic and mechanistic studies. #chemsky #chemistry
Case studies of dimensionality in chemical data
The ambition to relate intrinsic features of chemical data to the underlying chemical reaction networks (CRNs) is not new, but has experienced only modest success. This may partly be attributed to a ...
chemistry-europe.onlinelibrary.wiley.com
December 26, 2024 at 11:15 PM
So glad this is out, congrats @alexblokhuis.bsky.social! Dimensionality analysis is going to be an unavoidable tool in mechanistic investigations of (presumably) complex chemical systems 🔥
Reposted by Yannick Geiger
Our first preprint was in collaboration with Maciej Piejko and @moranlabchem.bsky.social , and we investigated the mechanism of abiotic phosphorylation of ribose and the subsequent formation of ribonucleosides under the effect of an oriented external electric field ⚡
📜 doi.org/10.26434/che...
📜 doi.org/10.26434/che...
December 13, 2024 at 8:43 AM
Our first preprint was in collaboration with Maciej Piejko and @moranlabchem.bsky.social , and we investigated the mechanism of abiotic phosphorylation of ribose and the subsequent formation of ribonucleosides under the effect of an oriented external electric field ⚡
📜 doi.org/10.26434/che...
📜 doi.org/10.26434/che...
Reposted by Yannick Geiger
PhD alert! I have two ERC-funded PhD positions to uncover the chemical origins of life (Oct 2025). *UK fees only*. Projects described here: www.lclu.cam.ac.uk/studentship-...
Email me if interested - deadline (PhD in Biochemistry, Uni of Cambridge): Jan 7th!
Please share within your networks!
Email me if interested - deadline (PhD in Biochemistry, Uni of Cambridge): Jan 7th!
Please share within your networks!
LCLU PhD Studentships | Leverhulme Centre for Life in the Universe
Applications are now open. The Leverhulme Centre for Life in the Universe and the University of Cambridge are committed to widening participation in postgraduate students at the University of Cambridg...
www.lclu.cam.ac.uk
December 10, 2024 at 8:43 PM
PhD alert! I have two ERC-funded PhD positions to uncover the chemical origins of life (Oct 2025). *UK fees only*. Projects described here: www.lclu.cam.ac.uk/studentship-...
Email me if interested - deadline (PhD in Biochemistry, Uni of Cambridge): Jan 7th!
Please share within your networks!
Email me if interested - deadline (PhD in Biochemistry, Uni of Cambridge): Jan 7th!
Please share within your networks!