Fluorescence enhancement of europium(III) perchlorate by benzoic acid on bis(benzylsulfinyl)methane complex and its binding characteristics with the bovine serum albumin (BSA)

Author(s):  
Jing Zhang ◽  
Wen-Xian Li ◽  
Bo-Yang Ao ◽  
Shu-Yan Feng ◽  
Xiao-Dong Xin
2021 ◽  
Vol 58 (3) ◽  
pp. 187-194
Author(s):  
Yongbo Song ◽  
Yulan Niu ◽  
Hongyan Zheng ◽  
Ying Yao

Abstract The interactions between cocopropane bis-guanidinium acetates, tallowpropane bis-guanidinium acetates with bovine serum albumin (BSA) in an aqueous solution were studied by fluorescence and circular dichroic spectroscopy measurements. The aim of the study was to elucidate the influence of the hydrophilic group and the length of the hydrophobic chain of these surfactants on the mechanism of binding to BSA. The results revealed that for both surfactants, at low concentrations, the Stern–Volmer plots had an upward curvature and at high concentrations, the quenching efficiency was decreased with increase in surfactant concentration. Different thermodynamics parameters demonstrated the existence of hydrogen bond and van der Waals force which acting as binding forces. Static quenching was observed among the protein and surfactant. The conformation of BSA was changed at higher surfactant concentrations as shown by synchronous fluorescence and CD spectroscopy. This work reveals the mechanism and binding characteristics between guanidine surfactants and protein, and provided the basis for further applications of surfactants.


1985 ◽  
Vol 33 (7) ◽  
pp. 2648-2653 ◽  
Author(s):  
JUZIRO NISHIJO ◽  
NORIKO MORITA ◽  
SHOZO ASADA ◽  
HIROKO NAKAE ◽  
EMIKO IWAMOTO

2008 ◽  
Vol 373 (2) ◽  
pp. 272-280 ◽  
Author(s):  
Luz E. Vera-Avila ◽  
Erika García-Salgado ◽  
Martha P. García de Llasera ◽  
Araceli Peña-Alvarez

1995 ◽  
Vol 11 (5) ◽  
pp. 743-747 ◽  
Author(s):  
Junichi ISHIDA ◽  
Kazutomo ABE ◽  
Masaru NAKAMURA ◽  
Masatoshi YAMAGUCHI

1988 ◽  
Vol 61 (8) ◽  
pp. 2727-2730
Author(s):  
Kunio Takeda ◽  
Katsushi Sasa ◽  
Kazuaki Hachiya ◽  
Mamoru Murata ◽  
Koichiro Aoki

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