Спектры эффективных показателей поглощения порфиринов в мягких биотканях

Abstract

Two types of the spectral effective absorption coefficients are simulated on the base of the optical model of soft biotissues and the analytical methods of the radiative transfer theory. The differential characteristic (DEA) is the product of the fluence rate at a specific depth and the absorption coefficient of a specific porphyrin. The integral coefficient (IEA) is the integral of the DEA over the tissue depth. The DEA and IEA are normalized by their values at about 500 nm to show, how effective is the skin surface irradiation at a given wave-length as compared with those at the maximal absorption wavelength. It is demonstrated that the proper selection of the irradiation wavelength can increase the generation of singlet oxygen by 10 and more times.