Laser-induced damage and recovery of plasmonically targeted human endothelial cells


Bartczak, Dorota, Muskens, Otto L., Millar, Timothy M., Sanchez-Elsner, Tilman and Kanaras, Antonios G. (2011) Laser-induced damage and recovery of plasmonically targeted human endothelial cells. Nano Letters, 11, (3), 1358-1363. (doi:10.1021/nl104528s). (PMID:21322611).

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Description/Abstract

Laser-induced techniques that employ the surface plasmon resonances of nanoparticles have recently been introduced as an effective therapeutic tool for destroying tumor cells. Here, we adopt a low-intensity laser-induced technique to manipulate the damage and repair of a vital category of noncancerous cells, human endothelial cells. Endothelial cells construct the interior of blood vessels and play a pivotal role in angiogenesis. The degree of damage and repair of the cells is shown to be influenced by laser illumination in the presence of gold nanoparticles of different morphologies, which either target the cellular membrane or are endocytosed. A pronounced influence of the plasmonic nanoparticle laser treatment on the expression of critical angiogenic genes is shown. Our results show that plasmon-mediated mild laser treatment, combined with specific targeting of cellular membranes, enables new routes for controlling cell permeability and gene regulation in endothelial cells.

Item Type: Article
ISSNs: 1530-6984 (print)
1530-6992 (electronic)
Keywords: gold nanoparticles, endothelium, peptides, hyperthermia, laser treatment, plasmon
Subjects: Q Science > QC Physics
R Medicine > RC Internal medicine
R Medicine > RM Therapeutics. Pharmacology
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy > Quantum, Light and Matter
ePrint ID: 178463
Date Deposited: 29 Mar 2011 15:30
Last Modified: 14 Apr 2014 10:55
Projects:
A nonlinear plasmonic antenna switch as building block for ultracompact photonic devices.
Funded by: EPSRC (EP/H019669/1)
Led by: Otto Lambert Muskens
14 January 2010 to 13 January 2012
URI: http://eprints.soton.ac.uk/id/eprint/178463

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