| Literature DB >> 21090714 |
Julia M Bingham1, Jeffrey N Anker, Lauren E Kreno, Richard P Van Duyne.
Abstract
We report the first inert gas sensing and characterization studies based on high-resolution localized surface plasmon resonance (HR-LSPR) spectroscopy. HR-LSPR was used to detect the extremely small changes (<3 × 10(-4)) in bulk refractive index when the gas was switched between He(g) and Ar(g) or He(g) and N2(g). We also demonstrate submonolayer sensitivity to adsorbed water from exposure of the sensor to air (40% humidity) versus dry N2(g). These measurements significantly expand the applications space and characterization tools for plasmonic nanosensors.Entities:
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Year: 2010 PMID: 21090714 PMCID: PMC3084350 DOI: 10.1021/ja1074272
Source DB: PubMed Journal: J Am Chem Soc ISSN: 0002-7863 Impact factor: 15.419