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Yang Liu, Hsiangkuo Yuan, Andrew M. Fales and Tuan Vo-Dinh pH-sensing nanostar probe using surface-enhanced Raman scattering (SERS): theoretical and experimental studies Journal of Raman Spectroscopy 44

Article first published online: 22 MAY 2013 | DOI: 10.1002/jrs.4302

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A pH-sensing nanoprobe based on surface-enhanced Raman scattering using nanostars under near-infrared excitations has been developed and investigated both experimentally and theoretically. A novel pH-sensing index, the surface-enhanced Raman scattering peak position for benzene ring stretching vibrational mode of p-mercaptobenzoic acid is observed in experiment and confirmed with density functional theory calculation.

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