Sensitive SERS nanotags for use with 1550 nm (retina-safe) laser excitation

Kearns, Hayleigh and Bedics, Matthew A. and Shand, Neil C. and Faulds, Karen and Detty, Michael R. and Graham, Duncan (2016) Sensitive SERS nanotags for use with 1550 nm (retina-safe) laser excitation. Analyst, 141 (17). pp. 5062-5065. ISSN 0003-2654

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    Abstract

    Chalcogenopyrylium nanotags demonstrate an unprecedented SERS performance with a retina safe, 1550 nm laser excitation. These unique nanotags consisting of chalcogenopyrylium dyes and 100 nm gold nanoparticles produce exceptional SERS signals with picomolar detection limits obtained at this extremely red-shifted and eye-safe laser excitation.