首页|Heteroepitaxial growth of Au@Pd core-shell nanocrystals with intrinsic chiral surfaces for enantiomeric recognition

Heteroepitaxial growth of Au@Pd core-shell nanocrystals with intrinsic chiral surfaces for enantiomeric recognition

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Noble metal surfaces with intrinsic chirality serve as an ideal candidate for investigating enantioselec-tive chemistry due to their superior chemical durability and high catalytic activity.Recently,significant advance has been made in synthesizing metal nanocrystals with intrinsic chirality.Nonetheless,the majority reports are limited to gold.Herein,through a heteroepitaxial growth strategy,the synthesis of metal nanocrystals with intrinsic chirality to palladium was extended for the first time and their appli-cation in enantioselective recognition was demonstrated.The heteroepitaxial growth strategy allows for transferring the chirality of homochiral Au nanocrystals to Au@Pd core-shell nanocrystals.By employing the chiral Au@Pd nanocrystals as enantiomeric recognizing elements,a series of electrochemical sensors for chiral discrimination were developed.Under optimal conditions,the peak potential between D-dihydroxyphenylalanine(D-DOPA)and L-di-hydroxyphenylalanine(L-DOPA)is about 80 mV,and the peak current of D-DOPA is 2 times as much as that of L-DOPA,which enables the determination of the enan-tiomeric excess(EE,％)of L-DOPA.Overall,this report not only introduces a heteroepitaxial growth strategy to synthesize metal nanocrystals with intrinsic chirality,but also demonstrates the superior capability of integrating intrinsic chirality and catalytic properties into metal nanocrystals for chiral recognition.

Core-shell nanostructuresChirality transferElectrochemical sensorsChiral recognitionChiroplasmonics

Feng-Xia Wu、Feng-Hua Li、Xia-Li Lv、Qi-Xian Zhang、Guo-Bao Xu、Wen-Xin Niu

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State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China

Shaoxing Institute of Technology,Shanghai University,Shaoxing 312000,China

University of Science and Technology of China,Hefei 230026,China

School of Materials Science and Engineering,Shanghai University,Shanghai 200436,China

Zhejiang Institute of Advanced Materials,Shanghai University,Jiashan 314113,China

University of Chinese Academy of Sciences,Beijing 100039,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaDepartment of Science and Technology of Jilin Province

22072144221021712197413120200201080JC

2024

10.1007/s12598-023-02402-0

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(1)
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