Polyvinyl pyrrolidone capped fluorescent anthracene nanoparticles for sensing fluorescein sodium in aqueous solution and analytical application for ophthalmic samples

Luminescence : the Journal of Biological and Chemical Luminescence
Dhanaji P BhopateShivajirao R Patil

Abstract

Based on the known complexation ability between polyvinyl pyrrolidone (PVP) and fluorescein sodium (FL Na(+)), fluorescent PVP capped anthracene nanoparticles (PVP-ANPs) were prepared using a reprecipitation method for detection of fluorescein in aqueous solution using the fluorescence resonance energy transfer (FRET) approach. A dynamic light scattering histogram of PVP-ANPs showed narrower particle size distribution and the average particle size was 15 nm. The aggregation-induced enhanced emission (AIEE) of PVP-ANPs was red shifted from its monomer by 1087.22 cm(-1). The maximum emission was seen to occur at 420 nm. The presence of FL Na(+) in the vicinity of PVP-ANPs quenched the fluorescence of PVP-ANPs because of its adsorption on the surface of PVP-ANPs in aqueous suspension. The FL Na(+) and PVP-ANPs were brought close enough, typically to 7.89 nm, which was less than the distance of 10 nm that is required between the energy donor-acceptor molecule for efficient FRET. The quenching results fit into the Stern-Volmer relationship even at temperatures greater than ambient temperatures. The thermodynamic parameters determined from FRET results helped to propose binding mechanisms involving hydrophobic and electrostatic molec...Continue Reading

References

Nov 26, 1973·Annals of the New York Academy of Sciences·I M Klotz
Jan 1, 1968·Journal of Pharmaceutical Sciences·R E Phares
Sep 1, 1993·Analytical Biochemistry·A J OzinskasJ R Lakowicz
Nov 10, 2004·Journal of Pharmaceutical and Biomedical Analysis·Yan-Jun HuSong-Sheng Qu
Jan 26, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Hiroshi YaoKeisaku Kimura
Jun 1, 2005·Biochimica Et Biophysica Acta·Meng-Xia XieYing-Dian Wang
Nov 17, 2006·The Journal of Physical Chemistry. B·Yuri BorodkoGabor A Somorjai
May 6, 2009·Biophysical Journal·Alexander P DemchenkoAndrey S Klymchenko
Sep 8, 2009·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·V R MoreG B Kolekar
Apr 2, 2010·Chemical Reviews·Mikhail Y Berezin, Samuel Achilefu
Mar 31, 2011·Journal of Fluorescence·Vishalkumar R MoreGovind B Kolekar
Oct 27, 2011·Chemical Communications : Chem Comm·Guozhen ChenChengxiao Zhang
Mar 10, 2012·Physical Chemistry Chemical Physics : PCCP·Minmin CaiWei Huang
Oct 19, 2012·Luminescence : the Journal of Biological and Chemical Luminescence·Dhanshri T PatilShivajirao R Patil

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Citations

Jun 2, 2016·Journal of Fluorescence·Prasad G MahajanShivajirao R Patil
May 29, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Guan WangJingyang Niu

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