Assessment of carboxyhemoglobin photodissociation performed at solution of whole human blood. At the range 550-585 nm we
detected maximal efficacy of carboxyhemoglobin dissociation corresponding to Q-electron transition at 570 nm.
Assessment of the carboxyhemoglobin photodissociation has been performed under the native conditions. This investigation has a great importance for the development and creation of completely new approach for the treatment of carbon monoxide poisoning based on the photoinduced dissociation of carboxyhemoglobin. Photodissociation was registered on the experimental setup with crossing laser beams were pulsed Nd:YAG laser at the second harmonics wavelength (λ=532 nm) was used as a source of photolyzing radiation. Buffered solutions of whole human peripheral blood (PBS, pH=7.4) and diluted hemolized human peripheral blood were used. We found optimal parameters for the registration of the photodissociation such as using of buffered solutions of the whole human peripheral blood with the concentration of carboxyhemoglobin around 50% detection of dissociation of carboxyhemoglobin at the maximum of absorption within the Soret's band (435 nm). Dependence of photodissociation efficiency on the concentration of the complex in the tested solutions, as well as on the photolysis radiation intensity in both types of solutions was proved.
The solution of the vector transfer equation in optically active media based on the Monte-Carlo method is considered. The algorithm suggested is used for studying the radiation polarization structure at narrow beams propagation. The preliminary polarization analysis has been made using a slightly anisotropy medium consisting of spherical particles. The particles are characterized by the index of refraction n=1.55 and have log-normal distribution. The phase and extinction matrices were calculated using the Green's function in the weak-anisotropy approximation.