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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Influence of carbohydrate biological vectors on the two-photon resonance of porphyrin oligomers
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Influence of carbohydrate biological vectors on the two-photon resonance of porphyrin oligomers

机译：碳水化合物生物载体对卟啉低聚物双光子共振的影响

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摘要

We propose a spectroscopic study of π-conjugated porphyrin dimers and a triphenylamine centered trimer bearing monoethyleneglycol-peracetylated α-mannose targeting moieties, which were synthesized for application to two-photon absorption photodynamic therapy (2PA-PDT). The collected spectroscopic data are explained through comparison with previous results obtained on similar nonvectorized analogues. It appears that the different shifts and variations in linear and nonlinear absorption and emission bands are mainly due to an increased twist between the tetrapyrrolic units. The 2PA properties of the triphenylamine-centered trimer have been studied, and two fluorescence emission bands are observed that seem to originate from two different 2PA excitation pathways. These results have important implication for the design of new vectorized photosensitizers for 2PA-PDT.
机译：我们提出了光谱共轭π卟啉二聚体和三苯胺中心三聚体的单乙二醇过乙酰化α-甘露糖靶向部分的光谱研究，这些合成用于二光子吸收光动力疗法（2PA-PDT）。通过与在类似的非矢量化类似物上获得的先前结果进行比较来解释收集的光谱数据。似乎线性和非线性吸收带和发射带的不同位移和变化主要是由于四吡咯单元之间的扭曲增加。研究了以三苯胺为中心的三聚体的2PA性质，观察到两个荧光发射带，它们似乎源于两个不同的2PA激发途径。这些结果对设计用于2PA-PDT的新型矢量化光敏剂具有重要意义。

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