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- Centre National de la Recherche ScientifiqueFR83 papers
- Laboratoire d'Astrophysique de BordeauxFR20 papers
- Laboratoire de Physique des deux infinis BordeauxFR19 papers
- Observatoire Aquitain des Sciences de l'UniversFR19 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR17 papers
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6 papers · 2 filters
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…
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…
Photothermal Absorption Spectroscopy of Individual Semiconductor Nanocrystals
Stéphane Berciaud, Laurent Cognet, Brahim Lounis
Photothermal heterodyne detection is used to record the first room-temperature absorption spectra of single CdSe/ZnS semiconductor nanocrystals. These spectra are recorded in the h…