Development of solution‐dispersible hyperbranched conjugated polymer nanoparticles for Fe3+ fluorescent detection and their application in logic gate. Issue 23 (7th September 2016)

• Record Type: Journal Article
• Authors: Ding, Wanchuan; Zhang, Hui; Xu, Jingkun; Wen, Yangping; Zhang, Jie; Liu, Hongtao; Yao, Yuanyuan; Zhang, Zhouxiang
• Is Part Of: Journal of polymer science. Volume 54:Issue 23(2016)
• Page Start: 3694
• Page End: 3700
• Publication Date: 2016-09-07
• Subjects: conjugated polymer nanoparticles -- Fe3+ detection -- fluorescent sensors -- logic gate -- solution‐dispersible; 547
• DOI: 10.1002/pola.28262
• Languages: English
• ISSNs: 0887-624X

Abstract

ABSTRACT: Solution‐dispersible hyperbranched conjugated polymer nanoparticles (FT‐HBCPNs) consist of an intrinsic crosslinked rigid skeleton structure of both 9, 9‐dihexyl‐fluorene and triphenylamine repeating units, and are synthesized via the miniemulsion Suzuki polymerization, and FT‐HBCPNs for highly selective and sensitive Fe 3+ fluorescent detection and their application in logic gate at molecular level are successfully developed. FT‐HBCPNs with an average particle size of 10.6 nm can disperse in common organic solvents. FT‐HBCPNs show high selectivity and sensitivity for Fe 3+ over other commonly co‐existent metal ions in THF solution with a detection limit of 3.65 × 10 −8 mol L −1 . Furthermore, homogeneous transparent thin films of FT‐HBCPNs developed by a simple spin‐coating method can be reversibly quenched by Fe 3+ with a detection limit of 3.09 × 10 −7 mol L −1 . Using Fe 3+ and EDTA as chemical inputs and the fluorescence intensity signal as outputs, FT‐HBCPNs films can be utilized as a logic gate at molecular level. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem.2016, 54, 3694–3700 Abstract : Solution‐dispersible hyperbranched conjugated polymer nanoparticles (FT‐HBCPNs) were prepared via the miniemulsion Suzuki polymerization. And THF dispersion solution and thin‐films based on FT‐HBCPNs were used for Fe 3+ fluorescent detection, respectively.