Abstract
FLUORESCENCE MICROSCOPY can pinpoint individual chemical reactions in real time as they occur at the interface between a solution and the surface of a key industrial catalyst support, according to a study by researchers at the University of California, Irvine ( J. Am Chem. Soc., DOI: 10.1021/ja105517d). The technique provides molecularly resolved maps and live-action movies depicting the chemical evolution of discrete metal complexes as they bind to functionalized silica surfaces. The products could serve as models of supported metal catalysts. That level of detail cannot be obtained from analytical methods that survey average properties of large numbers of molecules or from nanoscale techniques that probe static chemical systems. To monitor the single-molecule events, UC Irvine chemists N. Melody Esfandiari, Yong Wang, Suzanne A. Blum, and coworkers treated glass (silica) microscope coverslips with a triethoxysilyl thiourea compound. The team carried out that preparation step in a manner that patterned t...
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