期刊
MATERIALS RESEARCH BULLETIN
卷 48, 期 10, 页码 4051-4057出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2013.06.034
关键词
nanostructures; metals; optical properties; chemical synthesis
资金
- Spanish Ministry of Science and Innovation (MICINN) [MAT2011-24988]
- program I3SNS
- Fondo de Investigaciones Sanitarias (Spain)
Suspensions in phosphate buffered saline (PBS) of gold nanorods stabilized with cetyltrimethyl ammonium chloride (CTABr), polystyrenesulfonate (PSS) and methyl-polyethyleneglycol-thiol (m-PEG-SH) have been prepared and the evolution of their colloidal stability and plasmonic response over time has been evaluated. Their performance after lyophilization, alcoholic sterilization and resuspension has also been characterized. Sub-cytotoxic doses on HeLa cells were calculated for the three surface functionalizations used. Their heating efficiency at different exposure times was also evaluated after being irradiated with near infrared light. The best results were obtained for m-PEG-SH stabilized rods, which were not only stable, sterilizable and lyophilizable, but also biocompatible at all doses tested, showing potential as a stable, re-suspendible and biocompatible hyperthermic agent. (c) 2013 Elsevier Ltd. All rights reserved.
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