文献类型：期刊文献

中文题名：Polymeric assembled nanoparticles through kinetic stabilization by confined impingement jets dilution mixer for fluorescence switching imaging

作者：Jingran Liu[1];Yue Wu[1];Jie Tang[1];Tao Wang[1];Feng Ni[2];Qiumin Wu[1];Xijiao Yang[1];Ayyaz Ahmad[3];Naveed Ramzan[4];Yisheng Xu[1]

机构：[1]State Key Laboratory of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]Shanghai Shyndec Pharmaceutical Co.,Ltd,Shanghai 200040,China;[3]Department of Chemical Engineering,Muhammad Nawaz Sharif University of Engineering and Technology,Multan,Pakistan;[4]Faculty of Chemical,Metallurgical,and Polymer Engineering,University of Engineering&Technology,Lahore,Pakistan

年份：2023

卷号：56

期号：4

起止页码：89

中文期刊名：Chinese Journal of Chemical Engineering

外文期刊名：中国化学工程学报（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2023_2024】；PubMed;

基金：financially supported by the National Key Research and Development Program of the International Scientific and Technological Innovation Cooperation Project among Governments (2021YFE0100400);Science and Technology Innovation Action Plan of Shanghai (22501100500);the international One Belt One Road Collaboration Project of Shanghai (18490740300)。

语种：英文

中文关键词：Preparation;Kinetic stabilization;Flash nanoprecipitation;Nanoparticles;Fluorescence switch

摘要：Traditional fluorescence switching molecules achieving the state change between on and off states commonly based on UV irradiation. However, it is worth noting that UV irradiation is harmful to both the cancer cells and the normal cells. To achieve fluorescence switching under visible wavelength and avoid complicate molecular design, a fluorophore of 2,4,5,6-tetrakis(carbazol-9-yl)-1,3-dicyanobenzene(4Cz IPN) and a quencher of diarylethene(DAE) were physically incorporated within the biocompatible block copolymer poly(lactic-co-glycolic acid)-b-poly(ethylene glycol)(PLGA-b-PEG) to form 4Cz IPNDAE nanoparticles(NPs) through flash nanoprecipitation(FNP). By using the FNP method, the NPs were prepared within milliseconds in a confined impingement jets dilution(CIJ-D) mixer. Quenching and recovery of fluorescence could achieve in the presence of DAE under 475 nm and 560 nm irradiation.Appropriate structure and fluorescent properties of the nanoparticles can be tuned by external conditions for their efficient fluorescence resonance energy transfer(FRET) in a kinetic stabilization process. This NPs formation process was further optimized by varying the dilution ratio, Reynolds number(Re) and polymer concentration to modulate the mixing and particle nucleation and growth process. The size and fluorescence switching properties of the NPs were systematically investigated in solution and in cellular uptake experiments. This work is anticipated to provide a simple and highly effective engineering strategy for the modulation of fluorescence switching nanoparticles and beneficial to its engineering application.