Konkena, Bharathi Vasudevan, Sukumaran Resonance Raman Detection and Estimation in the Aqueous Phase Using Water Dispersible Cyclodextrin: Reduced-Graphene Oxide Sheets Resonance Raman spectroscopy is a powerful analytical tool for detecting and identifying analytes, but the associated strong fluorescence background severely limits the use of the technique. Here, we show that by attaching β-cyclodextrin (β-CD) cavities to reduced graphene-oxide (<i>r</i>GO) sheets we obtain a water dispersible material (β-CD: <i>r</i>GO) that combines the hydrophobicity associated with <i>r</i>GO with that of the cyclodextrin cavities and provides a versatile platform for resonance Raman detection. Planar aromatic and dye molecules that adsorb on the <i>r</i>GO domains and nonplanar molecules included within the tethered β-CD cavities have their fluorescence effectively quenched. We show that it is possible using the water dispersible β-CD: <i>r</i>GO sheets to record the resonance Raman spectra of adsorbed and included organic chromophores directly in aqueous media without having to extract or deposit on a substrate. This is significant, as it allows us to identify and estimate organic analytes present in water by resonance Raman spectroscopy. rGO sheets;Aqueous Phase;analyte;Resonance Raman Detection;cavity;resonance Raman spectroscopy;Water Dispersible Cyclodextrin;fluorescence background;resonance Raman spectra;nonplanar molecules;resonance Raman detection;rGO domains;dispersible;dye molecules;cyclodextrin cavities 2013-05-21
    https://acs.figshare.com/articles/journal_contribution/Resonance_Raman_Detection_and_Estimation_in_the_Aqueous_Phase_Using_Water_Dispersible_Cyclodextrin_Reduced_Graphene_Oxide_Sheets/2412811
10.1021/ac400457h.s001