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A Protein‐Binding Molecular Photothermal Agent for Tumor Ablation
Author(s) -
Shi Mingwan,
Fu Zhongliang,
Pan Wei,
Chen Yuanyuan,
Wang Kaiye,
Zhou Ping,
Li Na,
Tang Bo
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202101009
Subject(s) - photothermal therapy , chemistry , biophysics , in vivo , intracellular , covalent bond , nanotechnology , materials science , biochemistry , biology , organic chemistry , microbiology and biotechnology
Photothermal therapy usually requires a high power density to activate photothermal agent for effective treatment, which inevitably leads to damage to normal tissues and inflammation in tumor tissues. Herein, we rationally design a protein‐binding strategy to build a molecular photothermal agent for photothermal ablation of tumor. The synthesized photothermal agent can covalently bind to the thiol groups on the intracellular proteins. The heat generated by the photothermal agent directly destroyed the bioactive proteins in the cells, effectively reducing the heat loss and the molecular leakage. Under a low power density of 0.2 W cm −2 , the temperature produced by the photothermal agent was sufficient to induce apoptosis. In vitro and in vivo experiments showed that the therapeutic effect of photothermal therapy can be efficiently improved with the protein‐binding strategy.