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

Feng-Xia Wu ¹Feng-Hua Li ²Xia-Li Lv ³Qi-Xian Zhang ⁴Guo-Bao Xu ⁵Wen-Xin Niu⁵

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作者信息

1. State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
2. 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
3. State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;University of Science and Technology of China,Hefei 230026,China
4. 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;School of Materials Science and Engineering,Shanghai University,Shanghai 200436,China;Zhejiang Institute of Advanced Materials,Shanghai University,Jiashan 314113,China
5. State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;University of Science and Technology of China,Hefei 230026,China;University of Chinese Academy of Sciences,Beijing 100039,China
折叠

Abstract

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.

Key words

Core-shell nanostructures/Chirality transfer/Electrochemical sensors/Chiral recognition/Chiroplasmonics

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基金项目

National Natural Science Foundation of China(22072144)

National Natural Science Foundation of China(22102171)

National Natural Science Foundation of China(21974131)

Department of Science and Technology of Jilin Province(20200201080JC)

出版年

2024

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

参考文献量45

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