As a burgeoning research field, ultrasound-responsive materials have attracted intense interest in healthcare research. However, the basic mechanism of sonochemical effect in the quasi-solid state is far from being we...As a burgeoning research field, ultrasound-responsive materials have attracted intense interest in healthcare research. However, the basic mechanism of sonochemical effect in the quasi-solid state is far from being well understood than those in the solution. Herein, we showcase mechanochemical transformations of europium(Ⅲ) complexes in a supramolecular hydrogel matrix. With the combination of labile terpyridine-europium complexes(TPY-Eu^(3+)) as mechanochromic moieties and an ultrasound-responsive fluorogen(URF) as a molecular tweezer, the hydrogel produces a notable fluorescence change in response to ultrasound. The mechanochemical transformation was elucidated by molecular dynamics(MD) simulations, and fully probed and evidenced by electrochemical experiments, X-ray photoelectron spectroscopy(XPS), and attenuated total reflectance-Fourier transform infrared(ATR-FTIR) spectroscopy.展开更多
Aggregation-induced emission(AIE)-active fluorescent polymeric hydrogels(FPHs)are the marriage of AIE-active materials and polymeric hydrogels.Different from the widely studied AIE-active materials that are primarily ...Aggregation-induced emission(AIE)-active fluorescent polymeric hydrogels(FPHs)are the marriage of AIE-active materials and polymeric hydrogels.Different from the widely studied AIE-active materials that are primarily used in solution or dry solid state,they feature a three-dimensional crosslinked polymer network that can absorb water without dissolving.Consequently,they are known to bear many advantageous properties such as soft wet nature,tissue-like mechanical strength,biocompatibility,biomimetic self-healing feature,facilely tailored structure,as well as responsive fluorescence and volume/shape changes,thus representing a promising category of luminescent materials with many frontier uses.This Review is intended to give a systematic summary of the recent progress in this young but flourishing research area,with particular focus on their design and preparation.Current challenges and future outlooks in this field are also discussed in order to attract new interests and inspire more efforts.展开更多
基金supported by the National Key R&D Program of China(No.2018YFC0114900)National Natural Science Foundation of China(No.52103246,U1967217)+9 种基金Zhejiang Provincial Natural Science Foundation of China(Nos.LD22E050008,LD22A020002)China Postdoctoral Science Foundation(No.2021TQ0341,2020M671828)Ningbo Natural Science Foundation(No.2021J203,202003N4361)Youth Innovation Promotion Association of Chinese Academy of Sciences(No.2019297)Key Research Program of Frontier Science,Chinese Academy of Sciences(No.QYZDB-SSW-SLH036)the Sino-German Mobility Program(No.M-0424)K.C.Wong Education Foundation(No.GJTD-2019–13)National Independent Innovation Demonstration Zone Shanghai Zhangjiang Major Projects(No.ZJZX2020014)the Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study(No.SN-ZJU-SIAS-003)Director Foundation of Ningbo Institute of Materials Technology and Engineering。
文摘As a burgeoning research field, ultrasound-responsive materials have attracted intense interest in healthcare research. However, the basic mechanism of sonochemical effect in the quasi-solid state is far from being well understood than those in the solution. Herein, we showcase mechanochemical transformations of europium(Ⅲ) complexes in a supramolecular hydrogel matrix. With the combination of labile terpyridine-europium complexes(TPY-Eu^(3+)) as mechanochromic moieties and an ultrasound-responsive fluorogen(URF) as a molecular tweezer, the hydrogel produces a notable fluorescence change in response to ultrasound. The mechanochemical transformation was elucidated by molecular dynamics(MD) simulations, and fully probed and evidenced by electrochemical experiments, X-ray photoelectron spectroscopy(XPS), and attenuated total reflectance-Fourier transform infrared(ATR-FTIR) spectroscopy.
基金National Natural Science Foundation of China,Grant/Award Numbers:52073297,21774138,51773215Key Research Program of Frontier Sciences,Chinese Academy of Sciences,Grant/Award Number:QYZDB-SSW-SLH036+1 种基金Youth Innovation Promotion Association of Chinese Academy of Sciences,Grant/Award Number:2019297Open Fund of Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates,South China University of Technology,Grant/Award Number:2019B030301003。
文摘Aggregation-induced emission(AIE)-active fluorescent polymeric hydrogels(FPHs)are the marriage of AIE-active materials and polymeric hydrogels.Different from the widely studied AIE-active materials that are primarily used in solution or dry solid state,they feature a three-dimensional crosslinked polymer network that can absorb water without dissolving.Consequently,they are known to bear many advantageous properties such as soft wet nature,tissue-like mechanical strength,biocompatibility,biomimetic self-healing feature,facilely tailored structure,as well as responsive fluorescence and volume/shape changes,thus representing a promising category of luminescent materials with many frontier uses.This Review is intended to give a systematic summary of the recent progress in this young but flourishing research area,with particular focus on their design and preparation.Current challenges and future outlooks in this field are also discussed in order to attract new interests and inspire more efforts.
