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Plasmon nanoruler for monitoring of transient interactions
Author(s) -
Baryshnikova K. V.,
Petrov M. I.,
Vartanyan T. A.
Publication year - 2015
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201510330
Subject(s) - surface plasmon resonance , plasmon , nanoparticle , nanotechnology , localized surface plasmon , biosensor , position (finance) , surface plasmon , materials science , nanoscopic scale , optoelectronics , finance , economics
Nanoplasmonics has been rapidly developing for the last 30 years and it finds applications in many areas, including medicine, biology, and chemistry. Plasmon nanoparticles are used in biosensing and genomics, for bioimaging of cell structures, for targeted delivery of drugs and photothermolysis of cancer cells. All these applications often require real‐time detection of nanoparticle position at the nanoscale making this problem highly relevant. We propose new far‐field method of real‐time detection of plasmon particles location by detecting the magnitude of localized surface plasmon resonance splitting. In contrast to the existing methods based on the shift of plasmon resonance central line, the suggested technique is sensitive to the surface, and allows detecting metal nanoparticle position relatively to internal interfaces such as cell walls or chemical phase boundaries. The presented numerical simulations are aimed on modelling of biological tissues environment and demonstrate the possibility of high accuracy detection of nanoparticle position. (© 2015 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)