Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 15, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-013-1555-z
Keywords
Riboflavin; Silver nanoparticles; Fluorescence spectroscopy; Serum albumins
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Funding
- UEFISCDI [PN-II-RU-TE-2012-3-0055]
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Spectrophotometric behavior of riboflavin (RF) adsorbed on silver nanoparticles as well as its interaction with two serum albumins, BSA and HSA, respectively, has been evidenced. The time evolution of the plasmonic features of the complexes formed by RF/BSA/HSA and Ag(0) nanoparticles having an average diameter of 10.0 +/- 2.0 nm have been investigated by UV-Vis absorption spectroscopy. Using steady-state and time-resolved fluorescence spectroscopy, the structure, stability, and dynamics of the serum albumins have been studied. The efficiency of energy transfer process between RF and serum albumins on silver nanoparticles has been estimated. A reaction mechanism of RF with silver nanoparticles is also proposed and the results are discussed with relevance to the involvement of the silver nanoparticles to the redox process of RF and to the RF-serum albumins interaction into a silver nanoparticles complex.
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