A novel 4-butoxyethoxy-N-octadecyl-1,8-naphthalimide (BON) was synthesized as a fluorescent probe for the determination of proteins. The interactions between BON and bovine serum albumin (BSA) were studied by fluorescence spectroscopy and UV-vis absorption spectroscopy. Fluorescence data revealed that the fluorescence quenching of BSA by BON was likely the result of the formation of the BON-BSA...

The interaction between bovine serum albumin (BSA) and atazanvir sulphate (AS) has been investigated under the physiological pH 7.4 condition using fluoresence spectroscopy. The binding constant, number of binding site, thermodynamic parameters such as ∆G, ∆H, ∆S and nature of binding forces between BSA-AS have been obtained from the steady state fluorescence quenching of BSA by AS. The static ...

Fluorescence study on inclusion interaction of duloxetine in β-cyclodextrin shows significant increase in the fluorescence of duloxetine in the presence of β-cyclodextrin. The effects of pH and cyclodextrin concentration on the fluorescence spectra are reported. Fluorescence spectroscopy of the host-guest interaction between duloxetine and β-cyclodextrin shows formation of inclusion complex wit...

We report the design and operation of a Virtual Instrument (VI) system based on LabVIEW 2009 for laser-induced fluorescence experiments. This system achieves synchronous control of equipment and acquisition of real-time fluorescence data communicating with a single computer via GPIB, USB, RS232, and parallel ports. The reported VI system can also accomplish data display, saving, and analysis, a...

Surfactant flooding is a proven method employed to improve the recovery of crude oil from subsurface reservoirs but knowledge about microemulsion formation, factors related their stability, and trapping mechanism components in still not clear for designing injection fluid specific type. The interaction mechanisms four oils with surfactant-brine solutions were studied this work better insight in...

In this work we demonstrate enhancement of the fluorescence collection efficiency for chlorophyll-containing photosynthetic complexes deposited on SiO2 spherical nanoparticles. Microscopic images of fluorescence emission reveal ring-like emission patterns associated with chlorophyll-containing complexes coupled to electromagnetic modes within the silica nanoparticles. The interaction leaves no ...

School of Environmental Science and China–America CRC for Environment & He Province, Jinan 250100, P. R. China. E-m 88364868; Tel: +86-531-88364868 School of Chemistry and Chemical Engineer Shandong Province, P. R. China College of Population, Resources and Enviro East Wenhua Road, Jinan 250014, P. R. Chi † Electronic supplementary information PFASs, synchronous uorescence spectr spectra of HS...

Substitution of frozen-thawed food products for fresh ones is a significant authenticity issue being extensively investigated over the past few years by various conventional methods, but little success has been achieved. Fluorescence spectroscopy sensitive and selective spectroscopic technique that widely applied recently to deal with quality issues. The based on excitation certain photosensiti...

Interaction of the synthetic chalcones (1b,1c) and their cyclic analogues (2b,2c) with bovine (BSA) and human serum albumin (HSA) as well as with rat liver mitochondria (RLM) was studied by fluorescence spectroscopy. The maxima of emission fluorescence spectra were changed only in the case of 2b and 2c during interaction with BSA, HSA as well as mitochondrial outer membrane showing a slight hyp...