In December 2019,a novel coronavirus was first reported in Wuhan,China.1 It was named by the World Health Organization as severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and is responsible for coronavirus d...In December 2019,a novel coronavirus was first reported in Wuhan,China.1 It was named by the World Health Organization as severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and is responsible for coronavirus disease 2019(COVID-19).Up to 28 February 2020,79,394 cases have been confirmed according to China’s National Health Commission.Outside China,the virus has spread rapidly to over 36 countries and territories.展开更多
A new method of light-powered dissipative supra-molecular polymerization is established,in which supramolecular polymerization is implemented in the far-from-equilibrium state.A bifunctional mono-mer containing two vi...A new method of light-powered dissipative supra-molecular polymerization is established,in which supramolecular polymerization is implemented in the far-from-equilibrium state.A bifunctional mono-mer containing two viologen moieties was designed.Upon inputting energy by light,the sys-tem was driven far from equilibrium,and the mono-mers were photoreduced and activated to form supramolecular polymers driven by 2∶1 host–guest complexation of the viologen cation radical and cucurbit[8]uril.As the system returned to equilibri-um,the supramolecular polymers depolymerized spontaneously by air oxidation.This method works in both linear and in cross-linked supramolecular polymerization.The strategy of light-powered dis-sipative supramolecular polymerization is anticipat-ed to have potential in the fabrication of functional supramolecular materials,especially in creating novel“living”materials.展开更多
An Escherichia coli reduction-powered supramolecular polymerization is reported,leading to the fabrication of a near-infrared(NIR)photothermal antibacterial agent in situ.To this end,a bifunctional monomer containing ...An Escherichia coli reduction-powered supramolecular polymerization is reported,leading to the fabrication of a near-infrared(NIR)photothermal antibacterial agent in situ.To this end,a bifunctional monomer containing two viologen moieties was designed.WhenincubatingE.coli with thebifunctional monomer and cucurbit[8]uril,viologen moieties were reduced to viologen cation radicals by E.coli,and a supramolecular polymer with supramolecular dimers of viologen cation radicals integrated into the main chain was fabricated on the surface of E.coli.展开更多
基金from the National Natural Science Foundation of China(#81788101 and#81771685)Chinese Academy of Sciences(XDB29030000)the Emergency Project of Anhui Medical University of Science and Technology(YJGG202002).
文摘In December 2019,a novel coronavirus was first reported in Wuhan,China.1 It was named by the World Health Organization as severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and is responsible for coronavirus disease 2019(COVID-19).Up to 28 February 2020,79,394 cases have been confirmed according to China’s National Health Commission.Outside China,the virus has spread rapidly to over 36 countries and territories.
基金This work is supported financially by the National Natural Science Foundation of China(21434004,21890731,21821001,and 91527000)P.Z.is supported by the Na-tional Natural Science Foundation of China(21771103)the Natural Science Foundation of Jiangsu Province(BK20160639)。
文摘A new method of light-powered dissipative supra-molecular polymerization is established,in which supramolecular polymerization is implemented in the far-from-equilibrium state.A bifunctional mono-mer containing two viologen moieties was designed.Upon inputting energy by light,the sys-tem was driven far from equilibrium,and the mono-mers were photoreduced and activated to form supramolecular polymers driven by 2∶1 host–guest complexation of the viologen cation radical and cucurbit[8]uril.As the system returned to equilibri-um,the supramolecular polymers depolymerized spontaneously by air oxidation.This method works in both linear and in cross-linked supramolecular polymerization.The strategy of light-powered dis-sipative supramolecular polymerization is anticipat-ed to have potential in the fabrication of functional supramolecular materials,especially in creating novel“living”materials.
基金supported by the National Natural Science Foundation of China(nos.21890730,21890731,21821001,and 22071132).P.Z.was supported by the National Natural Science Foundation of China(nos.21771103 and 21977047)the Natural Science Foundation of Jiangsu Province(nos.BK20200058 and BK20202004)Fundamental Research Funds for the Central Universities(grant no.14380205).
文摘An Escherichia coli reduction-powered supramolecular polymerization is reported,leading to the fabrication of a near-infrared(NIR)photothermal antibacterial agent in situ.To this end,a bifunctional monomer containing two viologen moieties was designed.WhenincubatingE.coli with thebifunctional monomer and cucurbit[8]uril,viologen moieties were reduced to viologen cation radicals by E.coli,and a supramolecular polymer with supramolecular dimers of viologen cation radicals integrated into the main chain was fabricated on the surface of E.coli.
