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| Content Provider | Springer Nature Link |
|---|---|
| Author | Liu, Kun Bei, Guoxing Lin, Cuiwu He, Yixin Wei, Jinrui Zou, Jiajia Pan, Weigao |
| Copyright Year | 2014 |
| Abstract | Three new p-halogenated cinnamic amides (p-CA) have been synthesized and the interactions between p-CA and bovine serum albumin (BSA) in pH 7.4 tris–HCl buffer solution have been investigated by fluorescence and ultraviolet spectroscopies. Fluorescence spectra revealed that the quenching was a static quenching process at low p-CA concentrations and a combined quenching (static and dynamic) process at higher p-CA concentrations. The Stern–Volmer quenching constants (K $_{SV}$), the binding constants (K $_{A}$), the number of binding sites (n), and the thermodynamic parameters (ΔG, ΔH, and ΔS) have been calculated at 298, 303, and 308 K. According to Föster’s non-radiative energy transfer theory, the binding distances between p-CA and BSA are determined and the resonance energy transfer in p-CA and BSA has high possibility. The investigation of synchronous fluorescence spectra suggested that the binding of p-CA to BSA changed the microenvironment around the tyrosine residues. In addition, three halogens have different effects on binding interactions when they are introduced to the cinnamic amides. |
| Starting Page | 505 |
| Ending Page | 516 |
| Page Count | 12 |
| File Format | |
| ISSN | 03698203 |
| Journal | Proceedings of the National Academy of Sciences, India Section A: Physical Sciences |
| Volume Number | 84 |
| Issue Number | 4 |
| e-ISSN | 22501762 |
| Language | English |
| Publisher | Springer India |
| Publisher Date | 2014-09-09 |
| Publisher Place | India |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Bovine serum albumin Applied and Technical Physics Sulfadimoxine p-Halogenated cinnamic amides Interaction Atomic, Molecular, Optical and Plasma Physics Quantum Physics Physics Fluorescence quenching |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Biochemistry, Genetics and Molecular Biology |
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