Počet záznamů: 1  

Single molecule SERS: Perspectives of analytical applications

  1. 1. 0340259 - UMCH-V 2010 RIV NL eng J - Článek v odborném periodiku
    Vlčková, B. - Pavel, I. - Sládková, M. - Šišková, K. - Šlouf, Miroslav
    Single molecule SERS: Perspectives of analytical applications.
    Journal of Molecular Structure. 834-836, - (2007), s. 42-47. ISSN 0022-2860.
    [European Congress on Molecular Spectroscopy /28./. Istanbul, 03.09.2006-08.09.2006]
    Grant CEP: GA ČR GA203/04/0688
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: surface-enhanced Raman scattering (SERS) * surface-enhanced resonance Raman (SERRS) * single molecule SERS
    Kód oboru RIV: CD - Makromolekulární chemie
    Impakt faktor: 1.486, rok: 2007

    Recent developments in SERS (surface-enhanced Raman scattering) and SERRS (surface-enhanced resonance Raman scattering) spectroscopy are related to the discovery of its single molecule sensitivity. The achievement of single molecule level of SERS and/or SERRS spectral detection is understood to be conditioned by localization of detected molecules into unusually strong nanoscale-localized optical fields (dubbed hot spots). Recent calculations predict SERS enhancement factors as high as 1 x 1015 for certain chromophoric molecules located in the hot spot between two Ag nanoparticles [P. Johansson, H. Xu, M. Ka¨ll, Phys. Rev. B 72 (2005) 035427.]. Owing to a combination of single molecule sensitivity with the fingerprint selectivity inherent to vibrational spectroscopy, single molecule SERS spectroscopy can potentially offer unprecedented possibilities of analytical applications.
    Trvalý link: http://hdl.handle.net/11104/0005761