Facile Surface Modification of Hydroxylated Silicon Nanostructures Using Heterocyclic Silanes
Articolo
Data di Pubblicazione:
2016
Citazione:
Facile Surface Modification of Hydroxylated Silicon Nanostructures Using Heterocyclic Silanes / D. Kim, J.M. Zuidema, J. Kang, Y. Pan, L. Wu, D. Warther, B. Arkles, M.J. Sailor. - In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. - ISSN 0002-7863. - 138:46(2016 Nov 23), pp. 15106-15109. [10.1021/jacs.6b08614]
Abstract:
Heterocyclic silanes containing Si-N or Si-S bonds in the ring undergo a ring opening reaction with -OH groups at the surface of porous Si nanostructures to generate -SH or -NH functional surfaces, grafted via O-Si bonds. The reaction is substantially faster (0.5-2 h at 25 °C) and more efficient than hydrolytic condensation of trialkoxysilanes on similar hydroxy-terminated surfaces, and the reaction retains the open pore structure and photoluminescence of the quantum-confined silicon nanostructures. The chemistry is sufficiently mild to allow trapping of the test protein lysozyme, which retains its enzymatic activity upon release from the modified porous nanostructure.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
D. Kim, J.M. Zuidema, J. Kang, Y. Pan, L. Wu, D. Warther, B. Arkles, M.J. Sailor
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