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Updated: May 2, 2026

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
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Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers

Published on: October 28, 2015

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理性设计的长波长吸收Ru(II) 聚烯基复合物作为光动力学疗法的光敏剂

Johannes Karges1, Franz Heinemann1,2, Marta Jakubaszek1,3

  • 1Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.

Journal of the American Chemical Society
|March 17, 2020
PubMed
概括

研究人员开发了一种用于光动力学疗法 (PDT) 的新型 (Ruthenium) 聚二复合物. 这种新的光敏感剂 (PS) 利用可见光来增强瘤治疗,克服现有的PDT剂的局限性.

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A Bright NIR-II Fluorescence Probe for Vascular and Tumor Imaging05:51

A Bright NIR-II Fluorescence Probe for Vascular and Tumor Imaging

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The Photochemical Reaction Center01:29

The Photochemical Reaction Center

Reaction centers are pigment-protein complexes that initiate energy conversion from photons to chemical entities. Therefore, photochemical reaction center is a more appropriate term that describes these complexes. The Nobel laureates Robert Emerson and William Arnold provided the first experimental evidence of photochemical reaction centers by demonstrating the participation of nearly 2,500 chlorophyll molecules for the release of just one molecule of oxygen. Despite thousands of photosynthetic...
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Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
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Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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