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  • Title: Improved Sensitivity of Localized Surface Plasmon Resonance Transducers Using Reflection Measurements.
    Author: Kedem O, Vaskevich A, Rubinstein I.
    Journal: J Phys Chem Lett; 2011 May 19; 2(10):1223-6. PubMed ID: 26295330.
    Abstract:
    The refractive index sensitivity (RIS) of a localized surface plasmon resonance (LSPR) transducer is one of the key parameters determining its effectiveness in sensing applications. LSPR spectra of nanoparticulate gold films, including Au island films prepared by evaporation on glass and annealing as well as immobilized Au nanoparticle (NP) films, were measured in the transmission and reflection modes. It is shown that the RIS, measured as the wavelength shift in solvents with varying refractive index (RI), is significantly higher in reflection measurements.
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