LightNews
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Laurent Cognet
@laurentcognetbx.bsky.social
51 followers 60 following 5 posts
Physicist in academia. CNRS Research Director with interests in high resolution optical microscopy, nanoscience, biophysics & neurophotonics. www.cognet-research.com LP2N -Institut d'Optique Graduate School, CNRS, University of Bordeaux
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Reposted by Laurent Cognet
fichoulab.bsky.social
Yann Fichou @fichoulab.bsky.social · Jun 13
Indeed, we are looking of a PhD student at the interface between chemistry, biophysics and biology to work on light induced LLPS. join us at @iecb.bsky.social in Bordeaux !
baretjc.bsky.social
J.-C. B. @baretjc.bsky.social · Jun 12
My colleagues Nicolas Martin (CRPP) and @fichoulab.bsky.social (CBMN) have an open PhD position in Bordeaux !

Light and Liquid Liquid Phase Separation

@bxfrontiers.bsky.social
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Laurent Cognet @laurentcognetbx.bsky.social · May 22
An additional small clarification: these ultra-short nanotubes are competitive with quantum dots by being quite brighter, and, above all, by emitting in the NIRII / SWIR range. A crucial asset for bioimaging and NIR photon sources!
laurentcognetbx.bsky.social
Laurent Cognet @laurentcognetbx.bsky.social · May 22
This is a great collaboration with the amazing labs of Jana Zaumseil, Laurent Groc and Erwan Bezard
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Laurent Cognet @laurentcognetbx.bsky.social · May 22
Key Highlights:
🔹 High brightness combined with nanoscale size
🔹 Nonlinear photoluminescence behavior under varying excitation conditions
🔹 PL quantum yields up to 20%
🔹 Demonstration of high-resolution, 3D single-particle tracking in thick brain tissue
laurentcognetbx.bsky.social
Laurent Cognet @laurentcognetbx.bsky.social · May 22
🔥 Our latest research on ultrashort carbon nanotubes (uCCNTs) with luminescent color centers has been published in ACS Nano! We've discovered that these uCCNTs are exceptionally bright in the NIRII window, making them ideal for advanced bioimaging, photonics, and quantum science applications.
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laurentcognetbx.bsky.social
Laurent Cognet @laurentcognetbx.bsky.social · May 22
Key Highlights:
🔹 High brightness combined with nanoscale size
🔹 Nonlinear photoluminescence behavior under varying excitation conditions
🔹 PL quantum yields up to 20%
🔹 Demonstration of high-resolution, 3D single-particle tracking in thick brain tissue
laurentcognetbx.bsky.social
Laurent Cognet @laurentcognetbx.bsky.social · May 22
🔥 Our latest research on ultrashort carbon nanotubes (uCCNTs) with luminescent color centers has been published in ACS Nano! We've discovered that these uCCNTs are exceptionally bright in the NIRII window, making them ideal for advanced bioimaging, photonics, and quantum science applications.
Ultrashort Carbon Nanotubes with Luminescent Color Centers Are Bright NIR-II Nanoemitters
In the fields of bioimaging, photonics, and quantum science, it is equally crucial to combine high brightness with a nanoscale size in short-wave infrared (SWIR) emitters. However, such nanoemitters a...
pubs.acs.org
laurentcognetbx.bsky.social
Laurent Cognet @laurentcognetbx.bsky.social · May 22
🔥 Our latest research on ultrashort carbon nanotubes (uCCNTs) with luminescent color centers has been published in ACS Nano! We've discovered that these uCCNTs are exceptionally bright in the NIRII window, making them ideal for advanced bioimaging, photonics, and quantum science applications.
Ultrashort Carbon Nanotubes with Luminescent Color Centers Are Bright NIR-II Nanoemitters
In the fields of bioimaging, photonics, and quantum science, it is equally crucial to combine high brightness with a nanoscale size in short-wave infrared (SWIR) emitters. However, such nanoemitters a...
pubs.acs.org
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Reposted by Laurent Cognet
univbordeaux.bsky.social
Université de Bordeaux @univbordeaux.bsky.social · Mar 11
📻 Les cellules souches offrent à la recherche une nouvelle voie d’exploration thérapeutique pour de nombreuses maladies. Comment les exploiter ? Le point dans @sciencecqfd.bsky.social @franceculture.fr avec notamment Pierre Nassoy du LP2N* et fondateur de Treefrog :
www.radiofrance.fr/f...
Thérapie cellulaire : ça coule de souche
Les cellules souches utilisées en recherche sont soit directement issues de l’embryon soit induites à la pluripotence à partir de cellules adultes différenciées. Ces dernières offrent à la recherche une nouvelle voie d’exploration thérapeutique pour de nombreuses maladies. Comment les exploiter ?
www.radiofrance.fr
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laurentcognetbx.bsky.social
Laurent Cognet @laurentcognetbx.bsky.social · Feb 6
Happy to share our latest preprint rb.gy/py8q7a in which we demonstrate that ultrashort carbon nanotubes have astonishing brightness in the SWIR which propels them as amazing probes for bio-imaging in brain tissue (here in 3D SPT experiments). Yes, brighter than quantum dots and in the SWIR!
Ultrashort Carbon Nanotubes with Luminescent Color Centers are Ultrabright NIR-II Nano-Emitters
Combining brightness and nanoscale size of short-wave infrared (SWIR) emitters is equally essential in the fields of bioimaging, photonics, and quantum science, but such nano-emitters are still lackin...
doi.org
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