Abstract
We have reported a general method for biocompatible modification and multi-functionalization of semiconductor quantum dots (QDs) through direct reaction of organic silanes on the surface of semiconductor QDs. Functionalized QDs, including CdSe/ZnS, CdSe/CdS core/shell and PbS QDs, have been prepared at high concentration up to 10-4 M in homogeneous media, i.e. toluene. Fluorescence spectra and TEM images indicate that the modified QDs exhibit strong fluorescence and single particle features, respectively. Fluorescence images show that biocompatible CdSe/ZnS QDs are internalized into SK-BR-3 breast cancer cells after hydrophilic modification. Additionally, methacrylate- modified QDs have been used as monomers for radical polymerization.
Original language | English (US) |
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Pages (from-to) | 800-805 |
Number of pages | 6 |
Journal | Journal of Materials Chemistry |
Volume | 17 |
Issue number | 8 |
DOIs | |
State | Published - 2007 |
ASJC Scopus subject areas
- Chemistry(all)
- Materials Chemistry