期刊
NEW JOURNAL OF CHEMISTRY
卷 37, 期 7, 页码 1950-1958出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nj00146f
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资金
- Department of Science and Technology (DST)
- National Research Foundation (NRF) of South Africa
The absorption and fluorescence response as well as the fluorescence quantum yields and lifetimes of sulfonated phthalocyanines and alkyl carboxylic acid substituted zinc phthalocyanines in the presence of differently shaped water soluble gold nanoparticles were studied. The respective phthalocyanines are known to be highly aggregated in water, which is reported to markedly reduce the excited state lifetimes. This paper shows that in the presence of star shaped gold nanoparticles, the degree of phthalocyanine aggregation in water is greatly reduced, but the aggregation status of the phthalocyanines does not change for spherical Au nanoparticles. Since gold nanoparticles have already proven to be useful in numerous nanomedicinal and nanomedical applications, the disaggregation of phthalocyanines is an added advantage.
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