title: Facile Surface Modification of Hydroxylated Silicon Nanostructures Using Heterocyclic Silanes.
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.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States.
authors.forename: Dokyoung
authors.initials: D
authors.lastname: Kim
authors.affiliation: Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States.
authors.forename: Jonathan M
authors.initials: JM
authors.lastname: Zuidema
authors.affiliation: Department of Nanoengineering, University of California, San Diego , La Jolla, California 92093, United States.
authors.forename: Jinyoung
authors.initials: J
authors.lastname: Kang
authors.affiliation: Gelest Inc. , 11 East Steel Road, Morrisville, Pennsylvania 19067, United States.
authors.forename: Youlin
authors.initials: Y
authors.lastname: Pan
authors.affiliation: Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States.|Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University , Hangzhou 311121, China.
authors.forename: Lianbin
authors.initials: L
authors.lastname: Wu
authors.affiliation: Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States.
authors.forename: David
authors.initials: D
authors.lastname: Warther
authors.affiliation: Gelest Inc. , 11 East Steel Road, Morrisville, Pennsylvania 19067, United States.
authors.forename: Barry
authors.initials: B
authors.lastname: Arkles
authors.affiliation: Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United States.|Department of Nanoengineering, University of California, San Diego , La Jolla, California 92093, United States.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Sailor