509 citations · 2.5k across the 12 of their papers we have counts for
10 papers · 1 filter
Stepwise Quenching of Exciton Fluorescence in Carbon Nanotubes by Single Molecule Reactions
Laurent Cognet, Dmitri A. Tsyboulski, John-David R. Rocha +3
Single-molecule chemical reactions with individual single-walled carbon nanotubes were observed through near-infrared photoluminescence microscopy. The emission intensity within di…
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…
Single-molecule imaging of the H-ras membrane-anchor reveals domains in the cytoplasmic leaflet of the cell membrane
Piet H M Lommerse, Gerhard A Blab, Laurent Cognet +4
In the last decade evidence has accumulated that small domains of 50-700 nm in diameter are located in the exoplasmic leaflet of the plasma membrane. Most of these domains supposed…
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…