期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 138, 期 46, 页码 15106-15109出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b08614
关键词
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资金
- National Science Foundation [DMR-1210417, CBET-1603177]
- Defense Advanced Research Projects Agency (DARPA) [HR0011-13-2-0017]
- Ministry of Education [2016R1A6A3A03006343]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1603177] Funding Source: National Science Foundation
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 degrees 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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