426 citations · 2k across the 11 of their papers we have counts for
11 papers
Observation of intrinsic size effects in the optical response of individual gold nanoparticles
Stéphane Berciaud, Laurent Cognet, Philippe Tamarat +1
The Photothermal Heterodyne Imaging method is used to study for the first time the absorption spectra of individual gold nanoparticles with diameters down to 5 nm. Intrinsic size e…
Direct imaging of lateral movements of AMPA receptors inside synapses
Catherine Tardin, Laurent Cognet, Cécile Bats +2
Trafficking of AMPA receptors in and out of synapses is crucial for synaptic plasticity. Previous studies have focused on the role of endo/exocytosis processes or that of lateral d…
Photothermal heterodyne imaging of individual nonfluorescent nanoclusters and nanocrystals
Stéphane Berciaud, Laurent Cognet, Gerhard A Blab +1
We introduce a new, highly sensitive, and simple heterodyne optical method for imaging individual nonfluorescent nanoclusters and nanocrystals. A 2 order of magnitude improvement o…
Multiple Routes for Glutamate Receptor Trafficking: Surface Diffusion and Membrane Traffic Cooperate to Bring Receptors to Synapses
Laurent Cognet, Laurent Groc, Brahim Lounis +1
Trafficking of glutamate receptors into and out of synapses is critically involved in the plasticity of excitatory synaptic transmission. Endocytosis and exocytosis of receptors ha…
Fluorescence microscopy of single autofluorescent proteins for cellular biology
Laurent Cognet, Françoise Coussen, Daniel Choquet +1
In this paper we review the applicability of autofluorescent proteins for single-molecule imaging in biology. The photophysical characteristics of several mutants of the Green Fluo…
Single metallic nanoparticle imaging for protein detection in cells
Laurent Cognet, Catherine Tardin, David Boyer +3
We performed a visualization of membrane proteins labeled with 10-nm gold nanoparticles in cells, using an all-optical method based on photothermal interference contrast. The high…