Effect of chloroform on complexation and chiral aggregation of bilirubin–bovine serum albumin at heptane/water interface

Yin, Jianhua; Watarai, Hitoshi

doi:10.1016/j.jcis.2008.09.042

Journal of Colloid and Interface Science

2009

DOI: 10.1016/j.jcis.2008.09.042

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Effect of chloroform on complexation and chiral aggregation of bilirubin–bovine serum albumin at heptane/water interface

Jianhua Yin

Hitoshi Watarai

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Cited by 2 publications

References 19 publications

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Spectroscopic studies on bilirubin aggregate at liquid/liquid interface

Xiao¹,

Yin

2013

Anal Bioanal Chem

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Bilirubin (BR) aggregating at liquid/liquid interface was firstly detected by Fourier transform infrared (FTIR) imaging/spectroscopy combining with ultraviolet-visible (UV/Vis) absorption spectra. In the UV/Vis absorption spectra of BR aggregate, a new shoulder appeared at 474 nm, and BR absorption maximum underwent red shift from 450 nm to a longer wavelength at 497 nm, which indicates that BR aggregate was formed at the interface. Meanwhile, the BR molecule structure changed or conformation torsion, that is, the increase in orbit overlap or dihedral angle and the enhancement of exciton coupling. In the study of FTIR imaging/spectroscopy, the hydrogen bond-sensitive infrared bands of BR aggregate showed remarkable changes in band shift and intensity compared with those of BR powder, suggesting that the intramolecular hydrogen bonds broke out and internal structure changed. These new findings will be helpful for understanding of the BR molecular interaction, transportation, complex with serum albumin and metal ions, and the effect of BR aggregating on biomembrane and human tissues.

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Spectroscopic studies on bilirubin aggregate at liquid/liquid interface

Xiao¹,

Yin

2013

Anal Bioanal Chem

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Polarized infrared spectroscopy imaging applied to structural analysis of bilirubin aggregate at liquid-liquid interface

Zhai

Yongkang

et al. 2018

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Effect of chloroform on complexation and chiral aggregation of bilirubin–bovine serum albumin at heptane/water interface

Cited by 2 publications

References 19 publications

Spectroscopic studies on bilirubin aggregate at liquid/liquid interface

Spectroscopic studies on bilirubin aggregate at liquid/liquid interface

Polarized infrared spectroscopy imaging applied to structural analysis of bilirubin aggregate at liquid-liquid interface

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