Thermodynamic Analysis of the Interaction between Cationic Porphyrins and Human Serum Albumin by an Optical Biosensor

2005 ◽  
Vol 23 (8) ◽  
pp. 1095-1099 ◽  
Author(s):  
Qin Yi-Min ◽  
Pan Ni-Na ◽  
Jian Yong-Xing ◽  
Li Zao-Ying ◽  
Zou Guo-Lin
2007 ◽  
Vol 72 (2) ◽  
pp. 146-152 ◽  
Author(s):  
Mohd. Wajid Ali Khan ◽  
Zafar Rasheed ◽  
Wahid Ali Khan ◽  
Rashid Ali

2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Floyd A. Beckford

The reaction of [(η6-p-cymene)Ru(ATSC)Cl]PF6 (ATSC =9-anthraldehyde thiosemicarbazone) with human serum albumin was investigated at different temperatures using fluorescence and infrared spectrophotometry. The binding constant, K, for the reaction was determined using a number of different methods. Using a modified Stern-Volmer equation, K was determined to be 9.09×104,12.1×104, and 13.1×104 M−1 at 293 K, 298 K, and 308 K, respectively. A thermodynamic analysis showed that the reaction is spontaneous with ΔG being negative. The enthalpy of reaction ΔH=16.5 kJ mol−1 and the entropy of reaction ΔS=152 Jmol−1K−1. The values of ΔH and ΔS suggest that hydrophobic forces are dominant in the mode of interaction and that the process is mostly entropy driven.


2020 ◽  
Vol 301 ◽  
pp. 112466 ◽  
Author(s):  
Otávio Augusto Chaves ◽  
Thiago V. Acunha ◽  
Bernardo A. Iglesias ◽  
Catarina S.H. Jesus ◽  
Carlos Serpa

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