Single NanoParticle Photothermal Tracking (SNaPT) of 5 nm gold beads in live cells

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dc.creatorLasne, David
dc.creatorBlab, Gerhard A.
dc.creatorBerciaud, Stéphane
dc.creatorHeine, Martin
dc.creatorGroc, Laurent
dc.creatorChoquet, Daniel
dc.creatorCognet, Laurent
dc.creatorLounis, Brahim
dc.date2007-04-28
dc.date.accessioned2026-07-07T07:58:40Z
dc.date.available2026-07-07T07:58:40Z
dc.descriptionTracking individual nano-objets in live cells during arbitrary long times is an ubiquitous need in modern biology. We present here a method for tracking individual 5 nm gold nanoparticles on live cells. It relies on the photothermal effect and the detection of the Laser Induced Scattering around a NanoAbsorber (LISNA). The key point for recording trajectories at video rate is the use of a triangulation procedure. The effectiveness of the method is tested against Single fluorescent Molecule Tracking in live COS7 cells on subsecond time scales. We further demonstrate recordings for several minutes of AMPA receptors trajectories on the plasma membrane of live neurons. SNaPT has the unique potential to record arbitrary long trajectory of membrane proteins using non-fluorescent nanometer sized labels.
dc.identifierhttps://arxiv.org/abs/0704.3809
dc.identifierhttp://arxiv.org/abs/0704.3809
dc.identifierBiophysical Journal 91, 12 (15/12/2006) 4598
dc.identifierdoi:10.1529/biophysj.106.089771
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/128089
dc.subjectBiological Physics
dc.subjectOptics
dc.titleSingle NanoParticle Photothermal Tracking (SNaPT) of 5 nm gold beads in live cells
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