光热治疗
荧光
化学
荧光寿命成像显微镜
有机分子
分子
纳米技术
材料科学
光学
有机化学
物理
作者
Lin Yuan,Yingbin Su,Bing Yu,Youqing Shen,Hailin Cong
出处
期刊:Biomaterials Science
[The Royal Society of Chemistry]
日期:2023-01-01
卷期号:11 (3): 985-997
被引量:11
摘要
Near infrared (NIR) fluorescent organic molecules as fluorescent probes accurately guide photothermal therapy as a potential antitumor method. However, the aggregation and quenching of organic fluorescent molecules and poor tissue permeability greatly limit their therapeutic effect and clinical transformation. In this paper, with a D-A-D structure as the molecular skeleton, cyclopentadithiophene (CPDT) as the donor (D), diketopyrrolopyrrole (DPP) as the acceptor (A), and long-chain isooctane as the shielding unit, organic fluorescent small molecules with a strong absorption band and bright NIR-II emission were synthesized. Then, tetraphenylethylene (TPE) molecules with typical AIE structure characteristics were introduced on both sides of the organic fluorescent small molecules, and an organic small molecular fluorophore (TDA) with AIE characteristics and the photothermal effect was designed. Through a series of experimental characterization techniques, it is proved that TDA NPs have good biocompatibility and tissue permeability, and can accurately locate the tumor location through NIR-II fluorescence imaging to achieve local photothermal treatment of tumors.
科研通智能强力驱动
Strongly Powered by AbleSci AI