31 October 2016 The effect of axial ligands on the quantum yield of singlet oxygen of new silicon phthalocyanine
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Abstract
The singlet oxygen (1O2) production abilitity is an important factor to assess their potential as effective of photosensitizers. In this paper, the 1O2 production rate, production rate constant and quantum yield of silicon(IV) phthalocyanine axially bearing 1-3 generation dendritic substituents were evaluated by a high performance liquid chromatographic method. The results show that the 1O2 production rate and production rate constant of these compounds increase gradually with dendritic generations increase. And the 1O2 quantum yield of silicon(IV) phthalocyanine with first generation dendritic ligand was the highest. This may be due to the isolation effect of the dendritic ligands on the phthalocyanine core. The parameters of the observed 1O2 production properties will provide valuable data for these dendrimer phthalocyanines as promising photosensitizer in PDT application.
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Huafei Lv, Xuemei Zhang, Xinxin Yu, Sujuan Pan, Shusen Xie, Hongqin Yang, Yiru Peng, "The effect of axial ligands on the quantum yield of singlet oxygen of new silicon phthalocyanine", Proc. SPIE 10024, Optics in Health Care and Biomedical Optics VII, 1002441 (31 October 2016); doi: 10.1117/12.2246271; https://doi.org/10.1117/12.2246271
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