螺旋面
对映选择合成
手性(物理)
材料科学
纳米颗粒
电化学
纳米技术
化学
物理
电极
数学
催化作用
物理化学
几何学
有机化学
手征对称破缺
量子力学
Nambu–Jona Lasinio模型
夸克
作者
Fenghua Li,Fengxia Wu,Xiaoxi Luan,Yali Yuan,Ling Zhang,Guobao Xu,Wenxin Niu
标识
DOI:10.1016/j.snb.2022.131757
摘要
Chiral discrimination has played significant roles in food science, pharmaceutical science, medical science, and biology. As such, design of electrochemical chiral sensors with high enantiomeric discrimination ability and service life is highly desirable. Herein, helicoid Au nanoparticles with intrinsic chirality were synthesized and utilized to construct an electrochemical chiral sensor for the first time. Notably, nearly 6 times difference of peak currents was observed for tyrosine (Tyr) enantiomers by differential pulse voltammetry (DPV) method. To the best of our knowledge, it is the best result reported so far in electrochemical enantiomers detection, which is sufficient to enable an accurate determination of the enantiomeric purity and composition of the Tyr analytes. The obtained chiral electrodes were also applied to determine the L -Tyr contents in L -Tyr capsules, beer and milk. These results highlight the tremendous potential of using Au nanoparticles with intrinsic chirality to build chiral recognition interface for enantiomers recognition and offer the promise of practical application of electrochemical chiral sensors. • Au nanoparticles with intrinsic chirality were utilized to make an electrochemical chiral sensor. • Nearly 6 times difference of peak currents was observed for tyrosine enantiomers. • They were applied to determine the L -Tyr contents in capsules, beer and milk. • It offers the promise of practical application of chiral sensors.
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