壳聚糖/CdSe/ZnS量子点/卟啉纳米复合材料
Chitosan Nanocomposites with CdSe/ZnS Quantum Dots and Porphyrin
摘要：
利用壳聚糖（CS）钝化的疏水四苯基卟啉（TPP）分子与CdSe/ZnS量子点（QDs）形成了水溶性纳米复合材料。磁性圆二色性（MCD）光谱证据TPP存在于单体和团聚形式的纳米复合材料。纳米复合材料表现出更明显的单线态氧的产生相比，在CS中的游离TPP在相同的浓度，由于复合物内福斯特共振能量转移（FRET）与45%的平均效率。
英文摘要：
Water-soluble nanocomposites based on CdSe/ZnS quantum dots (QDs) and hydrophobic tetraphenylporphyrin (TPP) molecules passivated by chitosan (CS) have been formed. Magnetic circular dichroism (MCD) spectra evidence TPP presence in both monomeric and agglomerated forms in the nanocomposites. The nanocomposites demonstrate more pronounced singlet oxygen generation in comparison with free TPP in CS at the same concentration due to intracomplex Forster resonance energy transfer (FRET) with 45 % average efficiency.
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