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Xiao X, Chen C, Zhang Y, Kong H, An R, Li S, Liu W, Ji Q. Chiral Recognition on Bare Gold Surfaces by Quartz Crystal Microbalance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiangyun Xiao
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Chao Chen
- Nano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Yehao Zhang
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Huihui Kong
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Rong An
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Shuang Li
- Nano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Wei Liu
- Nano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
| | - Qingmin Ji
- Herbert Gleiter Institute for Nanoscience Nanjing University of Science and Technology 200 Xiaolingwei Nanjing 210094 China
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Xiao X, Chen C, Zhang Y, Kong H, An R, Li S, Liu W, Ji Q. Chiral Recognition on Bare Gold Surfaces by Quartz Crystal Microbalance. Angew Chem Int Ed Engl 2021; 60:25028-25033. [PMID: 34545674 DOI: 10.1002/anie.202110187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Indexed: 11/06/2022]
Abstract
Quartz crystal microbalance (QCM) is one of the powerful tools for the studies of molecular recognition and chiral discrimination. Its efficiency mainly relies on the design of the functional sensitive layer on the electrode surface. However, the organic sensitive layer may easily cause dissipation of oscillation or detachment and weaken the signal transfer during the molecular recognition processes. In this work, we reveal for the first time that the bare metal surface without the organic selector layer has the capability for chiral recognition in the QCM system. During the adsorption of various chiral amino acids, relatively higher selectivity of D-enantiomers on gold (Au) surface was shown by the QCM detection. Based on analyses of the surface crystalline structure and density functional theory calculations, we demonstrate that the chiral nature of Au surface plays an important role in the selective binding of specific D-amino acids. These results may open new insights on chiral detection by QCM system. It will also promote the construction of novel chiral sensing systems with both efficient detection and separation capability.
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Affiliation(s)
- Xiangyun Xiao
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Chao Chen
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Yehao Zhang
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Huihui Kong
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Rong An
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Shuang Li
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Wei Liu
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Qingmin Ji
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
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Dutta S, Yun Y, Widom M, Gellman AJ. 2D Ising Model for Adsorption-induced Enantiopurification of Racemates. Chemphyschem 2020; 22:197-203. [PMID: 33336873 DOI: 10.1002/cphc.202000881] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Indexed: 11/10/2022]
Abstract
Mechanisms for the spontaneous transformation of achiral chemical systems into states of enantiomeric purity have important ramifications in modern pharmacology and potential relevance to the origins of homochirality in life on Earth. Such mechanisms for enantiopurification are needed for production of chiral pharmaceuticals and other bioactive compounds. Previously proposed chemical mechanisms leading from achiral systems to near homochirality are initiated by a symmetry-breaking step resulting in a minor excess of one enantiomer via statistical fluctuations in enantiomer concentrations. Subsequent irreversible processes then amplify the majority enantiomer concentration while simultaneously suppressing minority enantiomer production. Herein, equilibrium adsorption of amino acid enantiomer mixtures onto chiral and achiral surfaces reveals amplification of surface enantiomeric excess relative to the gas phase; i. e. enantiopurification of chiral adsorbates by adsorption. This adsorption-induced amplification of enantiomeric excess is shown to be well-describe by the 2D Ising model. More importantly, the 2D-Ising model predicts formation of homochiral monolayers from adsorption of racemic mixtures or prochiral molecules on achiral surfaces; i. e. enantiopurification with no apparent chiral driving force.
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Affiliation(s)
- Soham Dutta
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
| | - Yongju Yun
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA.,Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Geongbyuk, 37673, Republic of Korea
| | - Michael Widom
- Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA, 15213, USA
| | - Andrew J Gellman
- Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA.,W.E. Scott Institute for Energy Innovation, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
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Affiliation(s)
- Liguo Ma
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Yuanyuan Cao
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Yingying Duan
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
- Present address: School of Chemical Science and Engineering; Tongji University; 1239 Siping Road, Shanghai China 200092 P.R. China
| | - Lu Han
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
- Present address: School of Chemical Science and Engineering; Tongji University; 1239 Siping Road, Shanghai China 200092 P.R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
- Present address: School of Chemical Science and Engineering; Tongji University; 1239 Siping Road, Shanghai China 200092 P.R. China
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Ma L, Cao Y, Duan Y, Han L, Che S. Silver Films with Hierarchical Chirality. Angew Chem Int Ed Engl 2017; 56:8657-8662. [DOI: 10.1002/anie.201701994] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/20/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Liguo Ma
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Yuanyuan Cao
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Yingying Duan
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
- Present address: School of Chemical Science and Engineering; Tongji University; 1239 Siping Road, Shanghai China 200092 P.R. China
| | - Lu Han
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
- Present address: School of Chemical Science and Engineering; Tongji University; 1239 Siping Road, Shanghai China 200092 P.R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
- Present address: School of Chemical Science and Engineering; Tongji University; 1239 Siping Road, Shanghai China 200092 P.R. China
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Martens J, Bhushan R. Enantioseparations in Achiral Environments and Chromatographic Systems. Isr J Chem 2016. [DOI: 10.1002/ijch.201600086] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jürgen Martens
- Institute of Chemistry; Carl von Ossietzky University Oldenburg; Carl-von-Ossietzky-Strasse 9-11, DE- 26129 Oldenburg Germany
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