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General aim: To conduct nanoscale investigations in & of the complex matter using advanced light microscopy. To do this, we attempt to understand and shape light/matter interactions in individual nanoscale objects (e.g. carbon nanotubes) & to develop single-molecule super-resolution imaging approaches. Our preferred applications often involve molecular diffusion processes and near-infrared microscopy, and are related to neuroscience and cancer. Our research is performed at the LP2N laboratory (NanoBioMicroscopy team). Our current projects focus on single-wall carbon nanotube spectroscopy, super-resolution microscopy, single particle tracking strategies, molecular diffusion processes, quantitative phase imaging, developments of optical nanoprobes for high-contrast imaging, and several applications of these approaches in neuroscience and cancer. We are hiring: postdoc positions available! (click here) |
LP2N - Institut d’Optique
CNRS, Univ. Bordeaux 1 rue François Mitterrand 33400 Talence, France Tel: +33 (0)5 5701 7207 laurent.cognet at u-bordeaux.fr 
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Latest news
January 2nd, 2023:
Welcome to Stephane Bancelin joining the team as CNRS researcher for exciting new research in non-linear processes and microscopy
Welcome to Stephane Bancelin joining the team as CNRS researcher for exciting new research in non-linear processes and microscopy
June 2nd, 2022:
Congratulations to Chiara et al for this terrific work just accepted in Nanoletters "Near-infrared carbon nanotube tracking reveals the nanoscale extracellular space around synapses ". Another great achievement in collaboration with Laurent Groc's team
Congratulations to Chiara et al for this terrific work just accepted in Nanoletters "Near-infrared carbon nanotube tracking reveals the nanoscale extracellular space around synapses ". Another great achievement in collaboration with Laurent Groc's team
May 1st, 2022:
We wish Pierre the best for the installation of his new group at Xlim in Limoges!
We wish Pierre the best for the installation of his new group at Xlim in Limoges!
Feb 15, 2022:
Welcome Yoann joining us as undergrad students!
Welcome Yoann joining us as undergrad students!
Feb 1, 2022:
Welcome Benjamin joining us as postdoctoral fellow after a Ph.D at EPFL
Welcome Benjamin joining us as postdoctoral fellow after a Ph.D at EPFL
Jan 15, 2022:
Welcome Blanca and Mathieu joining us as undergrad students!
Welcome Blanca and Mathieu joining us as undergrad students!
October 31, 2021:
Check out our latest preprint showing how correlative imaging using carbon nanotube tracking and speckle imaging could reveal the nanoscale environment of the brain extracellular space around synapses: a great work by Chiara & Joana!
https://biorxiv.org/cgi/content/short/2021.10.29.466461v1
Check out our latest preprint showing how correlative imaging using carbon nanotube tracking and speckle imaging could reveal the nanoscale environment of the brain extracellular space around synapses: a great work by Chiara & Joana!
https://biorxiv.org/cgi/content/short/2021.10.29.466461v1
October 1, 2021:
Welcome Quentin joining us as a PhD student!
Welcome Quentin joining us as a PhD student!
November 21, 2020:
Congratulations to Antony for his paper accepted in Journal of Applied Physics about length measurements of carbon nanotubes through the analysis of their diffusion behaviour... independent of viscosity. Paper highlighted by the Editor!
Congratulations to Antony for his paper accepted in Journal of Applied Physics about length measurements of carbon nanotubes through the analysis of their diffusion behaviour... independent of viscosity. Paper highlighted by the Editor!
November 5, 2020:
Synergy grant from the ERC awarded to Laurent together with Laurent Groc, Erwan Bezard and Valentin Nägerl, all of us from labs of the Univ. Bordeaux campus. This will be the start of an ambitious project using new approaches in high-resolution microscopy at the service of a new conceptual framework in brain cell communication.
Looking forward to 6 years of great science!
Synergy grant from the ERC awarded to Laurent together with Laurent Groc, Erwan Bezard and Valentin Nägerl, all of us from labs of the Univ. Bordeaux campus. This will be the start of an ambitious project using new approaches in high-resolution microscopy at the service of a new conceptual framework in brain cell communication.
Looking forward to 6 years of great science!
October, 1, 2020:
welcome to Apolline joining us as a PhD student with co-advisor Stephane Morcet from ICMCB in Chemistry.
welcome to Apolline joining us as a PhD student with co-advisor Stephane Morcet from ICMCB in Chemistry.
July, 10, 2020:
our paper out today in Nature Communications where we used carbon nanotubes to image the parkinsonian brain. Congratulations to Fede from Erwan's lab and Chiara, without forgetting Antony, Amit and Noemie!
our paper out today in Nature Communications where we used carbon nanotubes to image the parkinsonian brain. Congratulations to Fede from Erwan's lab and Chiara, without forgetting Antony, Amit and Noemie!
March, 24, 2020:
Amit's paper to appear in Sci. Rep : sp3 defect functionalized nanotubes imaged at the single nanotube level deep into brain slices at ultralow excitation dose. Great collaboration with YuHuang Wang and Laurent Groc labs.
Amit's paper to appear in Sci. Rep : sp3 defect functionalized nanotubes imaged at the single nanotube level deep into brain slices at ultralow excitation dose. Great collaboration with YuHuang Wang and Laurent Groc labs.
Dec 03, 2019:
Welcome to Akhtar who just joined us as a postdoc!
Welcome to Akhtar who just joined us as a postdoc!
Nov 13, 2019:
Welcome to Somen who just joined us as a postdoc!
Welcome to Somen who just joined us as a postdoc!
Sept 27, 2019:
New publication in Science Advances: photo-activable emitters in the nearinfrared (>1µm) for superresolution microscopy based on carbon nanotube nanohybrids. Great work from Antoine with a nice collaboration with the lab of S. Reich at FU. Berlin
New publication in Science Advances: photo-activable emitters in the nearinfrared (>1µm) for superresolution microscopy based on carbon nanotube nanohybrids. Great work from Antoine with a nice collaboration with the lab of S. Reich at FU. Berlin
Sept 16, 2019:
Welcome to Karen for joining the group as a Ph.D student!
Welcome to Karen for joining the group as a Ph.D student!
July 15, 2019:
Big clap for Amit who obtained an Ass. Prof. Position at Bankura University!
Big clap for Amit who obtained an Ass. Prof. Position at Bankura University!
June 25, 2019:
Very glad to host Prof. Shi-Wei CHU from National Taiwan University as a visiting professor for 2 months in our group. Special thanks to Idex Bordeaux for the support!
Very glad to host Prof. Shi-Wei CHU from National Taiwan University as a visiting professor for 2 months in our group. Special thanks to Idex Bordeaux for the support!
June 13, 2019:
"A model of guided cell self-organization for rapid and spontaneous formation of functional vessels" published in Science Advances today: A collaboration with Pierre Nassoy and Andreas Bikfalvi labs
"A model of guided cell self-organization for rapid and spontaneous formation of functional vessels" published in Science Advances today: A collaboration with Pierre Nassoy and Andreas Bikfalvi labs
May 07, 2019:
Congratulations to Jeanne for our new SELFI paper just accepted!
Congratulations to Jeanne for our new SELFI paper just accepted!
Oct 01, 2018:
Welcome to Etienne joining us as CNRS researcher!
Welcome to Etienne joining us as CNRS researcher!
Sept 28, 2018:
New publication in Neuron with the Groc's lab now online.
New publication in Neuron with the Groc's lab now online.
July 01, 2018:
Welcome to Antony who joined our team as a postdoctoral fellow
Welcome to Antony who joined our team as a postdoctoral fellow
June 12, 2018:
Congratulations to Noémie: Paper just accepted in ACS Nano
Ultrashort Nanotubes that fluoresce! A nice collaboration with YuHuang Wang's group and Steve Doorn.
Congratulations to Noémie: Paper just accepted in ACS Nano
Ultrashort Nanotubes that fluoresce! A nice collaboration with YuHuang Wang's group and Steve Doorn.
June 05, 2018:
Congratulations to Pierre for the nice cover art of Nature Methods June issue:
"Solving the molecular Rubik’s cube with SELFI."
Congratulations to Pierre for the nice cover art of Nature Methods June issue:
"Solving the molecular Rubik’s cube with SELFI."
April 30, 2018: Our SELFI paper in Nature Methods is online. Congrats to Pierre & Jeanne!
