Porphyrins with enhanced multi-photon absorption cross-sections for photodynamic therapy
    100.
    发明授权
    Porphyrins with enhanced multi-photon absorption cross-sections for photodynamic therapy 失效
    具有增强的多光子吸收截面的卟啉用于光动力学治疗

    公开(公告)号:US06953570B2

    公开(公告)日:2005-10-11

    申请号:US10225303

    申请日:2002-08-22

    CPC分类号: A61K41/008 A61B2017/22087

    摘要: A method of increasing the multi-photon absorption cross-section of a porphyrin-based photosensitizer by attaching at least one TPA-chromophore at the meso- or beta-positions of a porphyrin structure of the porphyrin-based photosensitizer, and at least one intersystem crossing enhancing substituent to meso- or beta-positions of a porphyrin structure of the porphyrin-based photosensitizer, to thereby increase multi-photon absorption cross-section of the porphyrin-based photosensitizer to at least about 30 GM units at about its maximum wavelength for two-photon absorption. The TPA-chromophore is selected from a group of π-conjugated structures. The resulting porphyrin-based photosensitizer absorbs two photons of radiation in the range of about 700 nm to about 1300 nm.

    摘要翻译: 通过在卟啉基光敏剂的卟啉结构的中间位置或β-位置附着至少一个TPA发色团,以及至少一个系统间相互作用来增加卟啉基光敏剂的多光子吸收横截面的方法 将卟啉基光敏剂的卟啉结构的中间或β-位交叉增强取代基,从而将卟啉基光敏剂的多光子吸收横截面增加至约大约30个GM单位,其大约其最大波长为 双光子吸收。 TPA发色团选自一组π-共轭结构。 所得的卟啉基光敏剂吸收约700nm至约1300nm范围内的两个辐射光子。