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Improvement of optical properties by fluorescein complexation with Nano-Pt- and Nano-Ag - porphyrin hybrids

By Anca Lascu, Luminita Salageanu, Diana Anghel, Nicoleta Plesu and Eugenia Fagadar-Cosma


Hybrid organic-inorganic nanomaterials based on Pt and Ag colloids, namely nanoAg-5,10,15,20-tetrakis-(4-aminophenyl)-porphyrin-Zn(II) (ZnTAPP-AgNPs) and nano-Pt5,10,15,20-tetrakis(N-methyl-4-pyridyl)porphyrin-Zn(II) tetrachloride (ZnTMePyP-PtNPs) were obtained and their capacity to form improved optically active complexes with fluorescein was investigated. By interaction with minute quantities of fluorescein the intensity of absorption of the plasmonic bands of the ZnTAPP-AgNPs and ZnTMePyP-PtNPs hybrids increases. ZnTMePyP-PtNPs hybrid will be further tested in clinical trials because it allows for a larger concentration domain of fluorescein complexation and more accurate dosage. All the sensitive materials are easy to prepare and respect the rules of sustainable chemistry

Year: 2018
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Provided by: University of Szeged
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