Controlling and Imaging the Functional-Group Distribution on Mesoporous Silica


  • Financial support by the Swiss National Science Foundation (Project 200020-117591) and by the European Commission through the Human Potential Programme (Marie-Curie RTN Nanomatch, Grant No. MRTN-CT-2006-035884) is acknowledged.


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In, out, shake it all about: The distribution of fluorescence-labeled amino groups on mesoporous silica was imaged by confocal laser scanning microscopy. The mobility of the aminosilane precursor determines the degree of external vs. pore-surface functionalization. This observation was used to develop a simple and general method for the modification of external mesoporous silica surfaces.