1
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Suwankaisorn B, Aroonratsameruang P, Kuhn A, Wattanakit C. Enantioselective recognition, synthesis, and separation of pharmaceutical compounds at chiral metallic surfaces. ChemMedChem 2024; 19:e202300557. [PMID: 38233349 DOI: 10.1002/cmdc.202300557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 01/19/2024]
Abstract
The development of new pharmaceutical compounds is challenging because most of them are based on enantiopure chiral molecules, which exhibit unique properties for therapy. However, the synthesis of pharmaceutical compounds in the absence of a chiral environment naturally leads to a racemic mixture. Thus, to control their synthesis, an asymmetric environment is required, and chiral homogeneous catalysts are typically used to synthesize enantiopure pharmaceutical compounds (EPC). Nevertheless, homogeneous catalysts are difficult to recover after the reaction, generating additional problems and costs in practical processes. Thus, the development of chiral heterogeneous catalysts is a timely topic. In a more general context, such chiral materials cannot only be used for synthesis, but also to recognize and separate enantiomers. In the frame of these different challenges, we give in this review a short introduction to strategies to extrinsically and intrinsically modify heterogeneous metal matrixes for the enantioselective synthesis, recognition, and separation of chiral pharmaceutical compounds.
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Affiliation(s)
- Banyong Suwankaisorn
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
- University of Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 16, avenue Pey Berland, 33607, Pessac, France
| | - Ponart Aroonratsameruang
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
| | - Alexander Kuhn
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
- University of Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 16, avenue Pey Berland, 33607, Pessac, France
| | - Chularat Wattanakit
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo.1 Payupnai, Wangchan, Rayong, Thailand, 21210
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2
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Imato K, Hino T, Kaneda N, Imae I, Shida N, Inagi S, Ooyama Y. Wireless Electrochemical Gel Actuators. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305067. [PMID: 37858925 DOI: 10.1002/smll.202305067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/29/2023] [Indexed: 10/21/2023]
Abstract
Soft actuators generate motion in response to external stimuli and are indispensable for soft robots, particularly future miniature robots with complex structure and motion. Similarly to conventional hard robots, electricity is suitable for the stimulation. However, previous electrochemical soft actuators require a tethered connection to a power supply, limiting their size, structure, and motion. Here, wireless electrochemical soft actuators composed of hydrogels and driven by bipolar electrochemistry are reported. Viologen, which dimerizes by one-electron reduction and dissociates by one-electron oxidation, is incorporated in the side chains of the gel networks and works as a reversible cross-link. Wireless and reversible electrochemical actuation of the hydrogels, i.e., muscle-like shrinking and swelling, is demonstrated at microscopic and even macroscopic scales.
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Affiliation(s)
- Keiichi Imato
- Applied Chemistry Program Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, 739-8527, Japan
| | - Taichi Hino
- Applied Chemistry Program Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, 739-8527, Japan
| | - Naoki Kaneda
- Applied Chemistry Program Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, 739-8527, Japan
| | - Ichiro Imae
- Applied Chemistry Program Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, 739-8527, Japan
| | - Naoki Shida
- Department of Chemistry and Life Science Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Shinsuke Inagi
- Department of Chemical Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502, Japan
| | - Yousuke Ooyama
- Applied Chemistry Program Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, 739-8527, Japan
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3
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Somsri S, Suwankaisorn B, Yomthong K, Srisuwanno W, Klinyod S, Kuhn A, Wattanakit C. Highly Enantioselective Synthesis of Pharmaceuticals at Chiral-Encoded Metal Surfaces. Chemistry 2023; 29:e202302054. [PMID: 37555292 DOI: 10.1002/chem.202302054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/06/2023] [Accepted: 08/09/2023] [Indexed: 08/10/2023]
Abstract
Enantioselective catalysis is of crucial importance in modern chemistry and pharmaceutical science. Although various concepts have been used for the development of enantioselective catalysts to obtain highly pure chiral compounds, most of them are based on homogeneous catalytic systems. Recently, we successfully developed nanostructured metal layers imprinted with chiral information, which were applied as electrocatalysts for the enantioselective synthesis of chiral model compounds. However, so far such materials have not been employed as heterogeneous catalysts for the enantioselective synthesis of real pharmaceutical products. In this contribution, we report the asymmetric synthesis of chiral pharmaceuticals (CPs) with chiral imprinted Pt-Ir surfaces as a simple hydrogenation catalyst. By fine-tuning the experimental parameters, a very high enantioselectivity (up to 95 % enantiomeric excess) with good catalyst stability can be achieved. The designed materials were also successfully used as catalytically active stationary phases for the continuous asymmetric flow synthesis of pharmaceutical compounds. This illustrates the possibility of producing real chiral pharmaceuticals at such nanostructured metal surfaces for the first time.
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Affiliation(s)
- Supattra Somsri
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
| | - Banyong Suwankaisorn
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
- University of Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 16 Avenue Pey Berland, 33607, Pessac, France
| | - Krissanapat Yomthong
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
| | - Wanmai Srisuwanno
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
- University of Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 16 Avenue Pey Berland, 33607, Pessac, France
| | - Sorasak Klinyod
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
| | - Alexander Kuhn
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
- University of Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 16 Avenue Pey Berland, 33607, Pessac, France
| | - Chularat Wattanakit
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong, 21210, Thailand
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4
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Arnaboldi S, Salinas G, Bichon S, Gounel S, Mano N, Kuhn A. Bi-enzymatic chemo-mechanical feedback loop for continuous self-sustained actuation of conducting polymers. Nat Commun 2023; 14:6390. [PMID: 37828004 PMCID: PMC10570360 DOI: 10.1038/s41467-023-42153-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/02/2023] [Indexed: 10/14/2023] Open
Abstract
Artificial actuators have been extensively studied due to their wide range of applications from soft robotics to biomedicine. Herein we introduce an autonomous bi-enzymatic system where reversible motion is triggered by the spontaneous oxidation and reduction of glucose and oxygen, respectively. This chemo-mechanical actuation is completely autonomous and does not require any external trigger to induce self-sustained motion. The device takes advantage of the asymmetric uptake and release of ions on the anisotropic surface of a conducting polymer strip, occurring during the operation of the enzymes glucose oxidase and bilirubin oxidase immobilized on its surface. Both enzymes are connected via a redox polymer at each extremity of the strip, but at the opposite faces of the polymer film. The time-asymmetric consumption of both fuels by the enzymatic reactions produces a double break of symmetry of the film, leading to autonomous actuation. An additional break of symmetry, introduced by the irreversible overoxidation of one extremity of the polymer film, leads to a crawling-type motion of the free-standing polymer film. These reactions occur in a virtually unlimited continuous loop, causing long-term autonomous actuation of the device.
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Affiliation(s)
| | - Gerardo Salinas
- University Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33607, Pessac, France
| | - Sabrina Bichon
- Centre de Recherche Paul Pascal, University Bordeaux, CNRS, UMR 5031, Pessac, France
| | - Sebastien Gounel
- Centre de Recherche Paul Pascal, University Bordeaux, CNRS, UMR 5031, Pessac, France
| | - Nicolas Mano
- Centre de Recherche Paul Pascal, University Bordeaux, CNRS, UMR 5031, Pessac, France
| | - Alexander Kuhn
- University Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33607, Pessac, France.
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5
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Arnaboldi S. Wireless electrochemical actuation of soft materials towards chiral stimuli. Chem Commun (Camb) 2023; 59:2072-2080. [PMID: 36748650 PMCID: PMC9933456 DOI: 10.1039/d2cc06630k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Different areas of modern chemistry, require wireless systems able to transfer chirality from the molecular to the macroscopic event. The ability to recognize the enantiomers of a chiral analyte is highly desired, since in the majority of cases such molecules present different physico-chemical properties that could lead, eventually, to dangerous or harmful interactions with the environment or the human body. From an electrochemical point of view, enantiomers have the same electrochemical behavior except when they interact in a chiral environment. In this Feature Article, different approaches for the electrochemical recognition of chiral information based on the actuation of conducting polymers are described. Such a dynamic behavior of π-conjugated materials is based on an electrochemically induced shrinking/swelling transition of the polymeric matrix. Since all the systems, described so far in the literature, are achiral and require a direct connection to a power supply, new strategies will be presented in the manuscript, concerning the implementation of chirality in electrochemical actuators and their use in a wireless manner through bipolar electrochemistry. Herein, the synergy between the wireless unconventional actuation and the outstanding enantiorecognition of inherent chiral oligomers is presented as an easy and straightforward read out of chiral information in solution. This approach presents different advantages in comparison to classic electrochemical systems such as its wireless nature and the possible real-time data acquisition.
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Affiliation(s)
- Serena Arnaboldi
- Università degli Studi di Milano, Dipartimento di Chimica, Via Golgi 19, 20133, Milano, Italy.
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6
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Bai S, You Y, Chen X, Liu C, Wang L. Monitoring Bipolar Electrochemistry and Hydrogen Evolution Reaction of a Single Gold Microparticle under Sub-Micropipette Confinement. Anal Chem 2023; 95:2054-2061. [PMID: 36625753 DOI: 10.1021/acs.analchem.2c04744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein, an approach to track the process of autorepeating bipolar reactions and hydrogen evolution reaction (HER) on a micro gold bipolar electrode (BPE) is established. Once blocking the channel of the sub-micropipette tip, the formed gold microparticle is polarized into the wireless BPE, which induces the dissolution of the gold at the anode and the HER at the cathode. The current response shows a periodic behavior with three regions: the bubble generation region (I), the bubble rupture/generation region (II), and the channel opening region (III). After a stable low baseline current of region I, a series of positive spike signals caused by single H2 nanobubbles rupture/generation are recorded standing for the beginning of region II. Meanwhile, the dissolution of the gold blocking at the orifice will create a new channel, increasing the baseline current for region III, where the synthesis of gold occurs again, resulting in another periodic response. Finite element simulations are applied to unveil the mechanism thermodynamically. In addition, the integral charge of the H2 nanobubbles in region II corresponds to the consumption of the anode gold. It simultaneously monitors autorepeating bipolar reactions of a single gold microparticle and HER of a single H2 nanobubble electrochemically, which reveals an insightful physicochemical mechanism in nanoscale confinement and makes the glass nanopore an ideal candidate to further reveal the heterogeneity of catalytic capability at the single particle level.
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Affiliation(s)
- Silan Bai
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou510641, China
| | - Yongtao You
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou510641, China
| | - Xiangping Chen
- Jewelry Institute, Guangzhou Panyu Polytechnic, Guangzhou511483, China
| | - Cheng Liu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou510641, China
- School of Chemistry, South China Normal University, Guangzhou510006, China
| | - Lishi Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou510641, China
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7
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Salinas G, Niamlaem M, Kuhn A, Arnaboldi S. Recent Advances in Electrochemical Transduction of Chiral Information. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Dong Z, Wu J, Guo X. Defect-Rich NiO Nanosheet for Promoting Electrocatalytic OER and Oxidation of Chiral 2-Butanol. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00759-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Butcha S, Lapeyre V, Wattanakit C, Kuhn A. Self-assembled monolayer protection of chiral-imprinted mesoporous platinum electrodes for highly enantioselective synthesis. Chem Sci 2022; 13:2339-2346. [PMID: 35310499 PMCID: PMC8864712 DOI: 10.1039/d2sc00056c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/01/2022] [Indexed: 11/21/2022] Open
Abstract
In modern chemistry, chiral (electro)catalysis is a powerful strategy to produce enantiomerically pure compounds (EPC). However, it still struggles with uncontrollable stereochemistry due to side reactions, eventually producing a racemic mixture. To overcome this important challenge, a well-controlled design of chiral catalyst materials is mandatory to produce enantiomers with acceptable purity. In this context, we propose the synergetic combination of two strategies, namely the elaboration of mesoporous Pt films, imprinted with chiral recognition sites, together with the spatially controlled formation of a self-assembled monolayer. Chiral imprinted metals have been previously suggested as electrode materials for enantioselective recognition, separation and synthesis. However, the outermost surface of such electrodes is lacking chiral information and thus leads to unspecific reactions. Functionalising selectively this part of the electrode with a monolayer of organosulfur ligands allows an almost total suppression of undesired side reactions and thus leads to a boost of enantiomeric excess to values of over 90% when using these surfaces in the frame of enantioselective electrosynthesis. In addition, this strategy also decreases the total reaction time by one order of magnitude. The study therefore opens up promising perspectives for the development of heterogeneous enantioselective electrocatalysis strategies.
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Affiliation(s)
- Sopon Butcha
- School of Molecular Science and Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology 21210 Wangchan Rayong Thailand
- University of Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, Site ENSCBP 16 Avenue Pey Berland 33607 Pessac France
| | - Véronique Lapeyre
- University of Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, Site ENSCBP 16 Avenue Pey Berland 33607 Pessac France
| | - Chularat Wattanakit
- School of Molecular Science and Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology 21210 Wangchan Rayong Thailand
| | - Alexander Kuhn
- School of Molecular Science and Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology 21210 Wangchan Rayong Thailand
- University of Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, Site ENSCBP 16 Avenue Pey Berland 33607 Pessac France
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10
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Salinas G, Arnaboldi S, Bouffier L, Kuhn A. Recent Advances in Bipolar Electrochemistry with Conducting Polymers. ChemElectroChem 2022. [DOI: 10.1002/celc.202101234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gerardo Salinas
- Univ. Bordeaux ISM UMR 5255 CNRS, Bordeaux INP 33607 Pessac France
| | - Serena Arnaboldi
- Dip. Di Chimica Univ. degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Laurent Bouffier
- Univ. Bordeaux ISM UMR 5255 CNRS, Bordeaux INP 33607 Pessac France
| | - Alexander Kuhn
- Univ. Bordeaux ISM UMR 5255 CNRS, Bordeaux INP 33607 Pessac France
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11
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Butcha S, Yu J, Pasom Z, Goudeau B, Wattanakit C, Sojic N, Kuhn A. Electrochemiluminescent enantioselective detection with chiral-imprinted mesoporous metal surfaces. Chem Commun (Camb) 2022; 58:10707-10710. [DOI: 10.1039/d2cc02562k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral-imprinted mesoporous Pt-Ir alloy surfaces were combined in a synergetic way with electrochemiluminescence (ECL) to detect the two enantiomers of phenylalanine (PA) as a model compound, acting simultaneously as a...
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12
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Arnaboldi S, Salinas G, Bonetti G, Cirilli R, Benincori T, Kuhn A. Bipolar Electrochemical Measurement of Enantiomeric Excess with Inherently Chiral Polymer Actuators. ACS MEASUREMENT SCIENCE AU 2021; 1:110-116. [PMID: 34939074 PMCID: PMC8679086 DOI: 10.1021/acsmeasuresciau.1c00011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Indexed: 05/11/2023]
Abstract
Straightforward enantioselective analytical methods are very important for drug safety, considering that in certain cases one of the two enantiomers of a chiral molecule might be harmful for humans. In this work, we propose a simple system for the direct and easy read-out of the enantiomeric excess of 3,4-dihydroxyphenylalanine (DOPA) as a model analyte. A conducting oligomer, i.e. oligo-(3,3'-dibenzothiophene), bearing inherently chiral features, is electrogenerated on a polypyrrole film. The resulting freestanding hybrid material is used as a wireless enantioselective actuator in a bipolar electrochemical cell. Combining in a single setup two individual actuators with opposite chiral features allows a direct visual read-out of enantiomeric excess, as the bending amplitude of each of the two actuators is directly correlated with the concentration of the corresponding stereoisomer of the analyte. Optimization of the experimental parameters results in efficient bending, giving access to the percentage values of the enantiomeric excess in mixtures containing different ratios of the antipodes, thus opening the way to potential applications for chiral in situ analysis.
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Affiliation(s)
- Serena Arnaboldi
- Université
de Bordeaux, CNRS UMR 5255, Bordeaux INP,
ENSCBP, 16 avenue Pey
Berland, 33607 Pessac, France
- Dipartimento
di Chimica, Universita degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Gerardo Salinas
- Université
de Bordeaux, CNRS UMR 5255, Bordeaux INP,
ENSCBP, 16 avenue Pey
Berland, 33607 Pessac, France
| | - Giorgia Bonetti
- Dipartimento
di Scienza e Alta Tecnologia, Universita
degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Roberto Cirilli
- Centro
Nazionale per il Controllo e la Valutazione dei Farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma, Italy
| | - Tiziana Benincori
- Dipartimento
di Scienza e Alta Tecnologia, Universita
degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Alexander Kuhn
- Université
de Bordeaux, CNRS UMR 5255, Bordeaux INP,
ENSCBP, 16 avenue Pey
Berland, 33607 Pessac, France
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13
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Assavapanumat S, Butcha S, Ittisanronnachai S, Kuhn A, Wattanakit C. Heterogeneous Enantioselective Catalysis with Chiral Encoded Mesoporous Pt-Ir Films Supported on Ni Foam. Chem Asian J 2021; 16:3345-3353. [PMID: 34416087 DOI: 10.1002/asia.202100966] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Indexed: 11/11/2022]
Abstract
The development of heterogeneous catalysts for asymmetric synthesis is one of the most challenging topics in chemistry, as it allows obtaining enantiomerically pure compounds. Recently, metal layers incorporating molecular chiral cavities, obtained by electroreduction of a metal source in the simultaneous presence of a non-ionic surfactant and asymmetric molecules, have been proposed for a wide range of applications, including enantioselective electroanalysis and electrosynthesis, as well as chiral separation. In contrast to this previous work, solely based on electrochemical phenomena, herein we designed and employed nanostructured chiral encoded Pt-Ir alloys, supported on high surface area nickel foams, as heterogeneous catalysts for the asymmetric hydrogenation of aromatic ketones. Fine-tuning the experimental conditions allows achieving very high enantioselectivity (>80%), combined with improved catalyst stability.
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Affiliation(s)
- Sunpet Assavapanumat
- School of Energy Science and Engineering, School of Molecular Science and Engineering, Frontier Research Center (FRC), Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology (VISTEC), 21210, Rayong, Thailand
| | - Sopon Butcha
- School of Energy Science and Engineering, School of Molecular Science and Engineering, Frontier Research Center (FRC), Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology (VISTEC), 21210, Rayong, Thailand.,University of Bordeaux, CNRS, UMR 5255, Bordeaux INP, Site ENSCBP, 16 avenue Pey Berland, 33607, Pessac, France
| | - Somlak Ittisanronnachai
- School of Energy Science and Engineering, School of Molecular Science and Engineering, Frontier Research Center (FRC), Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology (VISTEC), 21210, Rayong, Thailand
| | - Alexander Kuhn
- School of Energy Science and Engineering, School of Molecular Science and Engineering, Frontier Research Center (FRC), Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology (VISTEC), 21210, Rayong, Thailand.,University of Bordeaux, CNRS, UMR 5255, Bordeaux INP, Site ENSCBP, 16 avenue Pey Berland, 33607, Pessac, France
| | - Chularat Wattanakit
- School of Energy Science and Engineering, School of Molecular Science and Engineering, Frontier Research Center (FRC), Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology (VISTEC), 21210, Rayong, Thailand
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14
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Salinas G, Arnaboldi S, Bonetti G, Cirilli R, Benincori T, Kuhn A. Hybrid light-emitting devices for the straightforward readout of chiral information. Chirality 2021; 33:875-882. [PMID: 34617330 DOI: 10.1002/chir.23370] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 11/11/2022]
Abstract
Bipolar electrochemistry has gained increasing attention in recent years as an attractive transduction concept in analytical chemistry in general and, more specifically, in the frame of chiral recognition. Herein, we use this concept of wireless electrochemistry, based on the combination of the enantioselective oxidation of a chiral probe with the emission of light from a light-emitting diode (LED), as an alternative for an easy and straightforward readout of the presence of chiral molecules in solution. A hybrid polymer-microelectronic device was designed, using an inherently chiral oligomer, that is, oligo-(3,3'-dibenzothiophene) and a polypyrrole strip as the anode and cathode of a miniaturized LED. The wireless induced redox reactions trigger light emission when the probe with the right chirality is present in solution, whereas no light emission is observed for the opposite enantiomer. The average light intensity shows a linear correlation with the analyte concentration, and the concept opens the possibility to quantify the enantiomeric excess in mixtures of the molecular antipodes.
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Affiliation(s)
- Gerardo Salinas
- Univ. Bordeaux, ISM CNRS UMR 5255, Bordeaux INP, Pessac, France
| | - Serena Arnaboldi
- Univ. Bordeaux, ISM CNRS UMR 5255, Bordeaux INP, Pessac, France.,Dip. Di Chimica, Univ. degli Studi di Milano, Milan, Italy
| | - Giorgia Bonetti
- Dip. di Scienza e Alta Tecnologia, Univ. degli Studi dell'Insubria, Como, Italy
| | - Roberto Cirilli
- Istituto Superiore di Sanità, Centro Nazionale per il Controllo e la Valutazione dei Farmaci, Rome, Italy
| | - Tiziana Benincori
- Dip. di Scienza e Alta Tecnologia, Univ. degli Studi dell'Insubria, Como, Italy
| | - Alexander Kuhn
- Univ. Bordeaux, ISM CNRS UMR 5255, Bordeaux INP, Pessac, France
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15
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Bouffier L, Zigah D, Sojic N, Kuhn A. Bipolar (Bio)electroanalysis. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2021; 14:65-86. [PMID: 33940930 DOI: 10.1146/annurev-anchem-090820-093307] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This contribution reviews a selection of the most recent studies on the use of bipolar electrochemistry in the framework of analytical chemistry. Despite the fact that the concept is not new, with several important studies dating back to the middle of the last century, completely novel and very original approaches have emerged over the last decade. This current revival illustrates that scientists still (re)discover some exciting virtues of this approach, which are useful in many different areas, especially for tackling analytical challenges in an unconventional way. In several cases, this "wireless" electrochemistry strategy enables carrying out measurements that are simply not possible with classic electrochemical approaches. This review will hopefully stimulate new ideas and trigger scientists to integrate some aspects of bipolar electrochemistry in their work in order to drive the topic into yet unexplored and eventually completely unexpected directions.
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Affiliation(s)
- Laurent Bouffier
- Bordeaux INP, Institute of Molecular Science, and CNRS UMR 5255, University of Bordeaux, 33607 Pessac, France; , , ,
| | - Dodzi Zigah
- Bordeaux INP, Institute of Molecular Science, and CNRS UMR 5255, University of Bordeaux, 33607 Pessac, France; , , ,
| | - Neso Sojic
- Bordeaux INP, Institute of Molecular Science, and CNRS UMR 5255, University of Bordeaux, 33607 Pessac, France; , , ,
| | - Alexander Kuhn
- Bordeaux INP, Institute of Molecular Science, and CNRS UMR 5255, University of Bordeaux, 33607 Pessac, France; , , ,
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Butcha S, Assavapanumat S, Ittisanronnachai S, Lapeyre V, Wattanakit C, Kuhn A. Nanoengineered chiral Pt-Ir alloys for high-performance enantioselective electrosynthesis. Nat Commun 2021; 12:1314. [PMID: 33637758 PMCID: PMC7910542 DOI: 10.1038/s41467-021-21603-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
The design of efficient chiral catalysts is of crucial importance since it allows generating enantiomerically pure compounds. Tremendous efforts have been made over the past decades regarding the development of materials with enantioselective properties for various potential applications ranging from sensing to catalysis and separation. Recently, chiral features have been generated in mesoporous metals. Although these monometallic matrices show interesting enantioselectivity, they suffer from rather low stability, constituting an important roadblock for applications. Here, a straightforward strategy to circumvent this limitation by using nanostructured platinum-iridium alloys is presented. These materials can be successfully encoded with chiral information by co-electrodeposition from Pt and Ir salts in the simultaneous presence of a chiral compound and a lyotropic liquid crystal as asymmetric template and mesoporogen, respectively. The alloys enable a remarkable discrimination between chiral compounds and greatly improved enantioselectivity when used for asymmetric electrosynthesis (>95 %ee), combined with high electrochemical stability.
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Affiliation(s)
- Sopon Butcha
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 33607, Pessac, France
- School of Molecular Science and Engineering and School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 21210, Rayong, Thailand
| | - Sunpet Assavapanumat
- School of Molecular Science and Engineering and School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 21210, Rayong, Thailand
| | - Somlak Ittisanronnachai
- School of Molecular Science and Engineering and School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 21210, Rayong, Thailand
| | - Veronique Lapeyre
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 33607, Pessac, France
| | - Chularat Wattanakit
- School of Molecular Science and Engineering and School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 21210, Rayong, Thailand.
| | - Alexander Kuhn
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, 33607, Pessac, France.
- School of Molecular Science and Engineering and School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 21210, Rayong, Thailand.
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17
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Gupta B, Zhang L, Melvin AA, Goudeau B, Bouffier L, Kuhn A. Designing tubular conducting polymer actuators for wireless electropumping. Chem Sci 2020; 12:2071-2077. [PMID: 34163970 PMCID: PMC8179276 DOI: 10.1039/d0sc05885h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rational design and shaping of soft smart materials offer potential applications that cannot be addressed with rigid systems. In particular, electroresponsive elastic materials are well-suited for developing original active devices, such as pumps and actuators. However, applying the electric stimulus requires usually a physical connection between the active part and a power supply. Here we report about the design of an electromechanical system based on conducting polymers, enabling the actuation of a wireless microfluidic pump. Using the electric field-induced asymmetric polarization of miniaturized polypyrrole tubes, it is possible to trigger simultaneously site-specific chemical reactions, leading to shrinking and swelling in aqueous solution without any physical connection to a power source. The complementary electrochemical reactions occurring at the opposite extremities of the tube result in a differential change of its diameter. In turn, this electromechanical deformation allows inducing highly controlled fluid dynamics. The performance of such a remotely triggered electrochemically active soft pump can be fine-tuned by optimizing the wall thickness, length and inner diameter of the material. The efficient and fast actuation of the polymer pump opens up new opportunities for actuators in the field of fluidic or microfluidic devices, such as controlled drug release, artificial organs and bioinspired actuators. Tubular conducting polymer actuators are used for developing a wireless electropumping device. Bipolar electrochemistry, allowing symmetry breaking in terms of polarization and electrochemical reactions, is the key ingredient for efficient pumping. ![]()
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Affiliation(s)
- Bhavana Gupta
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, ENSCBP 16 Avenue Pey Berland 33607 Pessac France .,National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University Kaifeng 475004 China
| | - Lin Zhang
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, ENSCBP 16 Avenue Pey Berland 33607 Pessac France .,National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University Kaifeng 475004 China
| | - Ambrose Ashwin Melvin
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, ENSCBP 16 Avenue Pey Berland 33607 Pessac France
| | - Bertrand Goudeau
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, ENSCBP 16 Avenue Pey Berland 33607 Pessac France
| | - Laurent Bouffier
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, ENSCBP 16 Avenue Pey Berland 33607 Pessac France
| | - Alexander Kuhn
- Univ. Bordeaux, ISM, CNRS UMR 5255, Bordeaux INP, ENSCBP 16 Avenue Pey Berland 33607 Pessac France
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18
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Suttipat D, Butcha S, Assavapanumat S, Maihom T, Gupta B, Perro A, Sojic N, Kuhn A, Wattanakit C. Chiral Macroporous MOF Surfaces for Electroassisted Enantioselective Adsorption and Separation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:36548-36557. [PMID: 32683858 DOI: 10.1021/acsami.0c09816] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of surfaces with chiral features is a fascinating challenge for modern materials science, especially when they are used for chiral separation technologies. In this contribution, the design of hierarchically structured chiral macroporous zeolitic imidazolate framework-8 (ZIF-8) electrodes is presented. They are elaborated by an electrochemical deposition-dissolution technique based on the electrodeposition of metal through a colloidal crystal template, followed by controlled electrooxidation. This generates locally metal cations, which can interact with a chiral ligand present in the solution to form metal-organic frameworks (MOFs). The macroporous structure facilitates the access of the chiral recognition sites, located in the mesoporous MOF, and thus helps to overcome mass transport limitations. The efficiency of the designed functional materials for chiral adsorption and separation can be fine-tuned by applying an adjustable electric potential to the electrode surfaces. This hierarchical chiral ZIF-8 structure was deposited at the walls of a microfluidic device and used as a stationary phase for enantioselective separation. The potential-controlled interaction between the stationary phase and the chiral analytes allows baseline separation of two enantiomers. This opens up interesting perspectives for using hierarchically structured chiral MOFs as an efficient material for the selective adsorption and separation of chiral compounds.
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Affiliation(s)
- Duangkamon Suttipat
- School of Energy Science and Engineering, School of Molecular Science and Engineering, and Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Sopon Butcha
- School of Energy Science and Engineering, School of Molecular Science and Engineering, and Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, Pessac 33607, France
| | - Sunpet Assavapanumat
- School of Energy Science and Engineering, School of Molecular Science and Engineering, and Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, Pessac 33607, France
| | - Thana Maihom
- Department of Chemistry, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Bhavana Gupta
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, Pessac 33607, France
| | - Adeline Perro
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, Pessac 33607, France
| | - Neso Sojic
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, Pessac 33607, France
| | - Alexander Kuhn
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSCBP, Pessac 33607, France
| | - Chularat Wattanakit
- School of Energy Science and Engineering, School of Molecular Science and Engineering, and Nanocatalysts and Nanomaterials for Sustainable Energy and Environment Research Network of NANOTEC, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
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Arnaboldi S, Gupta B, Benincori T, Bonetti G, Cirilli R, Kuhn A. Absolute Chiral Recognition with Hybrid Wireless Electrochemical Actuators. Anal Chem 2020; 92:10042-10047. [DOI: 10.1021/acs.analchem.0c01817] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Serena Arnaboldi
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP, 16 avenue Pey Berland, 33607 Pessac, France
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Bhavana Gupta
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP, 16 avenue Pey Berland, 33607 Pessac, France
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Tiziana Benincori
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Giorgia Bonetti
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Roberto Cirilli
- Centro Nazionale per il Controllo e la Valutazione dei Farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma, Italy
| | - Alexander Kuhn
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP, 16 avenue Pey Berland, 33607 Pessac, France
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Wattanakit C, Kuhn A. Encoding Chiral Molecular Information in Metal Structures. Chemistry 2020; 26:2993-3003. [PMID: 31724789 DOI: 10.1002/chem.201904835] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/13/2019] [Indexed: 11/07/2022]
Abstract
The concept of encoding molecular information in bulk metals has been proposed over the past decade. The structure of various types of molecules, including enantiomers, can be imprinted in achiral substrates. Typically, to encode metals with chiral information, several approaches, based on chemical and electrochemical concepts, can be used. In this Minireview, recent achievements with respect to the development of such materials are discussed, including the entrapment of chiral biomolecules in metals, the chiral imprinting of metals, as well as the combination of imprinting with nanostructuring. The features and potential applications of these designer materials, such as chirooptical properties, enantioselective adsorption and separation, as well as their use for asymmetric synthesis will be presented. This will illustrate that the development of molecularly encoded metal structures opens up very interesting perspectives, especially in the frame of chiral technologies.
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Affiliation(s)
- Chularat Wattanakit
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 21210, Rayong, Thailand
| | - Alexander Kuhn
- CNRS UMR 5255, Bordeaux INP, Site ENSCBP, University of Bordeaux, 33607, Pessac, France
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Kuhn A. Physical Chemistry, a Discipline in Its Golden Age. Chemphyschem 2020; 21:7-8. [PMID: 31621173 DOI: 10.1002/cphc.201900932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Alexander Kuhn is Full Professor at the Institute of Molecular Science (University Bordeaux, CNRS, Bordeaux INP) as well as Adjunct Professor at VISTEC (Thailand) and Henan University (China). He currently serves as a chair of the ChemPhysChem Editorial Board.
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Affiliation(s)
- Alexander Kuhn
- Univ. Bordeaux, ISM UMR CNRS 5255, Bordeaux INP, ENSCBP, 16 avenue Pey Berland, 33607, Pessac, France
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