J. Phys. IV France
Volume 125, June 2005
Page(s) 709 - 711

J. Phys. IV France 125 (2005) 709-711

DOI: 10.1051/jp4:2005125162

Laser-induced dissociation of bovine oxy-hemoglobin studied by a pulsed photoacoustic method

S.Y. Zhang1, L. Sun1, H. Chen2, X.J. Shui1 and H.L. Chen2

1  Lab. of Modern Acoustics, Nanjing University, Nanjing 210093, China
2  Lab. of Coordination Chemistry, Nanjing University, Nanjing 210093, China

The kinetics and thermodynamics of enthalpy and conformational volume changes related to photo-dissociations of bovine oxide-hemoglobins has been investigated by ns pulsed photoacoustic method. The enthalpy and volume changes associated with the photo-dissociation are obtained as 35.7±3 Kcal/mol and 4.8±1 mL/mol respectively. The results are close to those of oxide-hemoglobins of human, but quite different with the values of carbon-monoxide-hemoglobins of human, and some discussions are given.

© EDP Sciences 2005