Abstract
In this article, a bio-inspired silk-mediated method was established to produce natural material-modified photoluminescent zinc oxide nanoparticles (nano-ZnO). Silk fibroin fibers were employed as the reactive substrates to synthesize nano-ZnO, and silk fibroins (SF) were taken as the biocompatible stabilizers to modify dispersed nano-ZnO. As-prepared nano-ZnO were mainly hexagonal phase particles with diameter around 13 nm. The resulting nano-ZnO/SF hybrids displayed orange emission and good biocompatibility in aqueous system.
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Acknowledgments
Financial supports from the 973 National Project (No. 2011CB922200), NSFC (No. 51102165), Sino-French Project of MOST of China (No. 2009DFA52410), Shanghai Science and Technology Committee (Nos. 10JC1407600, 09ZR1414700, 09520703400), KBSI grant (T31903) to W. J. Moon and Scholarship Award for Excellent Doctoral Student granted by Ministry of Education are gratefully acknowledged. The authors thank Chunfu Zhang (SJTU School of Biomedical Engineering) for the cell viability test; Leyan Zhuang and Zhirong Wang (Shanghai Anti-counterfeiting Technical Products Testing & Evaluation Center) for the measurements of reflection spectra and the acquirement of photographs; and Bin Chen (SJTU SMSE Materials Testing and Analysis Center) for the TEM observation and SJTU Instrument Analysis Center for FESEM and fluorescence microscopy measurements.
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Electronic supplementary material: XRD patterns, reflection and photoluminescence spectra of nano-ZnO/SFF. (DOC 1174 kb)
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Han, J., Su, H., Xu, J. et al. Silk-mediated synthesis and modification of photoluminescent ZnO nanoparticles. J Nanopart Res 14, 726 (2012). https://doi.org/10.1007/s11051-012-0726-7
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DOI: https://doi.org/10.1007/s11051-012-0726-7