Mesoporous materials in sensing: morphology and functionality at the meso-interface |
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Authors: | Brian J Melde Brandy J Johnson |
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Institution: | (1) Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC 20375, USA; |
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Abstract: | Mesoporous materials are finding increasing utility in sensing applications. These applications can benefit from a surface
area that may exceed 1,000 m2 g−1 and fast diffusion of analytes through a porous structure. This article reviews recent developments in mesoporous materials-based
sensing and provides examples of the impact of different surface functionality, pore structure, and macro-morphology in an
attempt to illustrate the contribution of these factors to the selectivity and sensitivity of a sensor response. The materials
discussed include ordered mesoporous silicates synthesized with surfactants, hard templated ordered mesoporous carbons, and
metal oxides with porous textures which have been applied to advantage in various detection schemes. Chemical functionalization
of mesoporous materials through silane grafting, co-condensation, and adsorption are also addressed. |
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