Facile Surface Modification of Hydroxylated Silicon Nanostructures Using Heterocyclic Silanes

Dokyoung Kim; Jonathan M. Zuidema; Jinyoung Kang; Youlin Pan; Lianbin Wu; David Warther; Barry Arkles; Michael J. Sailor

doi:10.1021/jacs.6b08614

Facile Surface Modification of Hydroxylated Silicon Nanostructures Using Heterocyclic Silanes

Dokyoung Kim, Jonathan M. Zuidema, Jinyoung Kang, Youlin Pan, Lianbin Wu, David Warther, Barry Arkles, Michael J. Sailor

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

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.

Original language	English
Pages (from-to)	15106-15109
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	138
Issue number	46
DOIs	https://doi.org/10.1021/jacs.6b08614
State	Published - Nov 23 2016

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

Funding

This work was supported by the National Science Foundation under Grants No. DMR-1210417, CBET-1603177, and by the Defense Advanced Research Projects Agency (DARPA) under Cooperative Agreement HR0011-13-2-0017.

Funders	Funder number
National Science Foundation Arctic Social Science Program	DMR-1210417, CBET-1603177, 1603177
Defense Advanced Research Projects Agency	HR0011-13-2-0017

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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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.",

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AU - Kim, Dokyoung

AU - Zuidema, Jonathan M.

AU - Kang, Jinyoung

AU - Pan, Youlin

AU - Wu, Lianbin

AU - Warther, David

AU - Arkles, Barry

AU - Sailor, Michael J.

PY - 2016/11/23

Y1 - 2016/11/23

N2 - 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.

AB - 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.

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Facile Surface Modification of Hydroxylated Silicon Nanostructures Using Heterocyclic Silanes

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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