A Freezing‐Induced Turn‐On Imaging Modality for Real‐Time Monitoring of Cancer Cells in Cryosurgery. (14th February 2019)

• Record Type: Journal Article
• Authors: He, Zhiyuan; Liu, Pai; Zhang, Shizhong; Yan, Jie; Wang, Mengni; Cai, Zhengxu; Wang, Jianjun; Dong, Yuping
• Is Part Of: Angewandte Chemie. Volume 131:Number 12(2019)
• Page Start: 3874
• Page End: 3877
• Publication Date: 2019-02-14
• Subjects: Aggregationsinduzierte Emission -- Echtzeit-Imaging -- Gefrieren -- Krebszellen -- Kryochirurgie; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201813239
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Cryosurgery has attracted much attention for the treatment of tumors owing to its clear advantages. However, determining the volume of frozen tissues in real‐time remains a challenge, which greatly lowers the therapeutic efficacy of cryosurgery and hinders its broad application for the treatment of cancers. Herein, we report a freezing‐induced turn‐on strategy for the selective real‐time imaging of frozen cancer cells. As a type of aggregation‐induced emission (AIE) fluorogen, TABD‐Py molecules interact specifically with ice crystals and form aggregates at the ice/water interface. Consequently, bright fluorescent emission appears upon freezing. TABD‐Py molecules are enriched mostly in the cancer cells and exhibit high biocompatibility as well as low cytotoxicity; therefore, a freezing‐induced turn‐on imaging modality for cryosurgery is developed, which will certainly maximize the therapeutic efficacy of cryosurgery in treating tumors. Abstract : Blaues Eis : TABD‐Py wurde zur Entwicklung einer Gefrier‐induzierten Turn‐on‐Imaging‐Modalität für die Kryochirurgie verwendet. Als AIE‐Fluorogene interagieren TABD‐Py‐Moleküle spezifisch mit Eiskristallen und bilden Aggregate an der Eis/Wasser‐Grenzfläche, woraus beim Gefrieren eine helle Fluoreszenzemission resultiert (AIE=aggregationsinduzierte Emission).