Plasmonic chiroptical materials,coupled by chirality and surface plasmons,have been attracting great interest due to their potential applications,such as photonics,chiral recognition,asymmetric catalysis and biosensin...Plasmonic chiroptical materials,coupled by chirality and surface plasmons,have been attracting great interest due to their potential applications,such as photonics,chiral recognition,asymmetric catalysis and biosensing.Herein,we constructed a new chiral plasmonic nanostructure—helically grooved gold nanoarrows(HeliGNAs)by introducing L-/Dcysteine(L-/D-Cys)during the growth of the gold nanoarrows(GNAs).The variation of the concentration of L-/D-Cys leads to the HeliGNAs with a tunable plasmonic circular dichroism(PCD).展开更多
Dynamic transitions of supramolecular assemblies between lower-order structures and higher-order superhelical structures(e.g.,double-helical DNA,helical biopolymers)are of vital importance in many physiological proces...Dynamic transitions of supramolecular assemblies between lower-order structures and higher-order superhelical structures(e.g.,double-helical DNA,helical biopolymers)are of vital importance in many physiological processes,but still remain a great challenge to be realized in artificially assembled systems.Herein,a novel biphenyl central core symmetrically coupled with phenylalanine groups drives the construction of the dynamic superhelix.展开更多
基金supported by the National Natural Science Foundation of China(nos.21890734,21972150,21890730,and 21773259)and the Key Research Program of Frontier Sciences,CAS,(no.QYZDJ-SSW-SLH044).
文摘Plasmonic chiroptical materials,coupled by chirality and surface plasmons,have been attracting great interest due to their potential applications,such as photonics,chiral recognition,asymmetric catalysis and biosensing.Herein,we constructed a new chiral plasmonic nanostructure—helically grooved gold nanoarrows(HeliGNAs)by introducing L-/Dcysteine(L-/D-Cys)during the growth of the gold nanoarrows(GNAs).The variation of the concentration of L-/D-Cys leads to the HeliGNAs with a tunable plasmonic circular dichroism(PCD).
基金support of this research from the National Natural Science Foundation of China(NSFC nos.51833006 and 52003154)the Innovation Program of the Shanghai Municipal Education Commission(no.201701070002E00061)+2 种基金the Shanghai Pujiang Program(no.20PJ1407400),the Natural Science Foundation of Shanghai(no.20ZR1425500)SJTU Transmed Awards Research(no.WF5401X62X603)the Science and Technology Commission of Shanghai Municipality(no.20S31904600).
文摘Dynamic transitions of supramolecular assemblies between lower-order structures and higher-order superhelical structures(e.g.,double-helical DNA,helical biopolymers)are of vital importance in many physiological processes,but still remain a great challenge to be realized in artificially assembled systems.Herein,a novel biphenyl central core symmetrically coupled with phenylalanine groups drives the construction of the dynamic superhelix.
