Gas sensing with high-resolution localized surface plasmon resonance spectroscopy.
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ABSTRACT:
SUBMITTER: Bingham JM
PROVIDER: S-EPMC3084350 | biostudies-literature | 2010 Dec
REPOSITORIES: biostudies-literature
Publications
Gas sensing with high-resolution localized surface plasmon resonance spectroscopy.
Bingham Julia M JM Anker Jeffrey N JN Kreno Lauren E LE Van Duyne Richard P RP
Journal of the American Chemical Society 20101122 49
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 applicati ...[more]
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