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Woźnica M, Sobiech M, Luliński P. A Fusion of Molecular Imprinting Technology and Siloxane Chemistry: A Way to Advanced Hybrid Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:248. [PMID: 36677999 PMCID: PMC9863567 DOI: 10.3390/nano13020248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/01/2023] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Molecular imprinting technology is a well-known strategy to synthesize materials with a predetermined specificity. For fifty years, the "classical" approach assumed the creation of "memory sites" in the organic polymer matrix by a template molecule that interacts with the functional monomer prior to the polymerization and template removal. However, the phenomenon of a material's "memory" provided by the "footprint" of the chemical entity was first observed on silica-based materials nearly a century ago. Through the years, molecular imprinting technology has attracted the attention of many scientists. Different forms of molecularly imprinted materials, even on the nanoscale, were elaborated, predominantly using organic polymers to induce the "memory". This field has expanded quickly in recent years, providing versatile tools for the separation or detection of numerous chemical compounds or even macromolecules. In this review, we would like to emphasize the role of the molecular imprinting process in the formation of highly specific siloxane-based nanomaterials. The distinct chemistry of siloxanes provides an opportunity for the facile functionalization of the surfaces of nanomaterials, enabling us to introduce additional properties and providing a way for vast applications such as detectors or separators. It also allows for catalyzing chemical reactions providing microreactors to facilitate organic synthesis. Finally, it determines the properties of siloxanes such as biocompatibility, which opens the way to applications in drug delivery and nanomedicine. Thus, a brief outlook on the chemistry of siloxanes prior to the discussion of the current state of the art of siloxane-based imprinted nanomaterials will be provided. Those aspects will be presented in the context of practical applications in various areas of chemistry and medicine. Finally, a brief outlook of future perspectives for the field will be pointed out.
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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Environmental Modulation of Chiral Prolinamide Catalysts for Stereodivergent Conjugate Addition. J Catal 2022; 406:126-133. [PMID: 35087258 PMCID: PMC8788998 DOI: 10.1016/j.jcat.2022.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Synthetic chiral catalysts generally rely on proximal functional groups or ligands for chiral induction. Enzymes often employ environmental chirality to achieve stereoselectivity. Environmentally controlled catalysis has benefits such as size and shape selectivity but is underexplored by chemists. We here report molecularly imprinted nanoparticles (MINPs) that utilized their environmental chirality to either augment or reverse the intrinsic selectivity of a chiral prolinamide cofactor. The latter ability allowed the catalyst to produce products otherwise disfavored in the conjugate addition of aldehyde to nitroalkene. The catalysis occurred in water at room temperature and afforded γ-nitroaldehydes with excellent yields (up to 94%) and ee (>90% in most cases). Up to 25:1 syn/anti and 1:6 syn/anti ratios were achieved through a combination of catalyst-derived and environmentally enabled selectivity. The high enantioselectivity of the MINP also made it possible for racemic catalysts to perform asymmetric catalysis, with up to 80% ee for the conjugate addition.
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Selective detection of enrofloxacin in biological and environmental samples using a molecularly imprinted electrochemiluminescence sensor based on functionalized copper nanoclusters. Talanta 2022; 236:122835. [PMID: 34635225 DOI: 10.1016/j.talanta.2021.122835] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/20/2021] [Accepted: 08/30/2021] [Indexed: 11/23/2022]
Abstract
Enrofloxacin (ENR) is a broad-spectrum fungicide that has been largely applied in pharmacy and animal-specific medicine. In this paper, a simple, novel and highly sensitive molecularly imprinted electrochemiluminescence (MIP-ECL) sensor based on mercaptopropionic acid-functionalized copper nanoclusters (MPA-Cu NCs) was developed to selectively detect enrofloxacin (ENR). MPA-Cu NCs prepared by a one-step method were used to modify the glassy carbon electrode. A molecularly imprinted polymer film containing the cavity was constructed after electropolymerization and elution. Under optimized conditions, the MIP-ECL sensor could detect ENR in the range of 0.1 nM-1 μM (R2 = 0.9863) with a low limit of detection of 27 pM, and the recovery rates of ENR in biological and lake water samples were 88.20-105.0%. The MIP-ECL sensor provided path to improve the stability issues of Cu NCs, which might open promising avenues to develop new ECL systems for biological analysis and environmental water monitoring.
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Motokura K, Ding S, Usui K, Kong Y. Enhanced Catalysis Based on the Surface Environment of the Silica-Supported Metal Complex. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03426] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ken Motokura
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- 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
| | - Siming Ding
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- 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
| | - Kei Usui
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- 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
| | - Yuanyuan Kong
- Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- 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
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Dong C, Shi H, Han Y, Yang Y, Wang R, Men J. Molecularly imprinted polymers by the surface imprinting technique. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110231] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Muratsugu S, Baba H, Tanimoto T, Sawaguchi K, Ikemoto S, Tasaki M, Terao Y, Tada M. Chemoselective epoxidation of cholesterol derivatives on a surface-designed molecularly imprinted Ru–porphyrin catalyst. Chem Commun (Camb) 2018; 54:5114-5117. [DOI: 10.1039/c8cc00896e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High chemoselectivity for the C5C6 epoxidation of cholesterol derivatives without protecting other oxidizable functional groups was achieved on a newly designed molecularly imprinted Ru–porphyrin catalyst using a SiO2-support.
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Affiliation(s)
- Satoshi Muratsugu
- Department of Chemistry, Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Hiroshi Baba
- Department of Chemistry, Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Tatsuya Tanimoto
- Department of Chemistry, Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Kana Sawaguchi
- Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS)
- Nagoya University
- Nagoya
- Japan
| | - Satoru Ikemoto
- Department of Chemistry, Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Masahiro Tasaki
- Department of Chemistry, Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Yosuke Terao
- Department of Chemistry, Graduate School of Science
- Nagoya University
- Nagoya
- Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science
- Nagoya University
- Nagoya
- Japan
- Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS)
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An amphiphilic and photoswitchable organocatalyst for the aldol reaction based on a product-imprinted polymer. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.07.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Muratsugu S, Miyamoto S, Sakamoto K, Ichihashi K, Kim CK, Ishiguro N, Tada M. Size Regulation and Stability Enhancement of Pt Nanoparticle Catalyst via Polypyrrole Functionalization of Carbon-Nanotube-Supported Pt Tetranuclear Complex. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10271-10282. [PMID: 28933549 DOI: 10.1021/acs.langmuir.7b02114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel multiwall carbon nanotube (MWCNT) and polypyrrole (PPy) composite was found to be useful for preparing durable Pt nanoparticle catalysts of highly regulated sizes. A new pyrene-functionalized Pt4 complex was attached to the MWCNT surface which was functionalized with PPy matrix to yield Pt4 complex/PPy/MWCNT composites without decomposition of the Pt4 complex units. The attached Pt4 complexes in the composite were transformed into Pt0 nanoparticles with sizes of 1.0-1.3 nm at a Pt loading range of 2 to 4 wt %. The Pt nanoparticles in the composites were found to be active and durable catalysts for the N-alkylation of aniline with benzyl alcohol. In particular, the Pt nanoparticles with PPy matrix exhibited high catalyst durability in up to four repetitions of the catalyst recycling experiment compared with nonsize-regulated Pt nanoparticles prepared without PPy matrix. These results demonstrate that the PPy matrix act to regulate the size of Pt nanoparticles, and the PPy matrix also offers stability for repeated usage for Pt nanoparticle catalysis.
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Affiliation(s)
- Satoshi Muratsugu
- Department of Chemistry, Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Shota Miyamoto
- Department of Chemistry, Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Kana Sakamoto
- Department of Chemistry, Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Kentaro Ichihashi
- Department of Chemistry, Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Chang Kyu Kim
- Department of Chemistry, Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Nozomu Ishiguro
- Element Visualization Team, Materials Visualization Photon Science Group, RIKEN SPring-8 Center, 1-1-1 Koto, Sayo, Hyogo 679-5198, Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
- Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University , Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
- Element Visualization Team, Materials Visualization Photon Science Group, RIKEN SPring-8 Center, 1-1-1 Koto, Sayo, Hyogo 679-5198, Japan
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Muratsugu S, Maity N, Baba H, Tasaki M, Tada M. Preparation and catalytic performance of a molecularly imprinted Pd complex catalyst for Suzuki cross-coupling reactions. Dalton Trans 2017; 46:3125-3134. [DOI: 10.1039/c7dt00124j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A molecularly imprinted Pd complex catalyst was successfully designed and prepared on a SiO2 surface for shape-selective Suzuki cross-coupling reaction.
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Affiliation(s)
- Satoshi Muratsugu
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya 464-8602
- Japan
| | | | - Hiroshi Baba
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya 464-8602
- Japan
| | - Masahiro Tasaki
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya 464-8602
- Japan
| | - Mizuki Tada
- Department of Chemistry
- Graduate School of Science
- Nagoya University
- Nagoya 464-8602
- Japan
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Yutthalekha T, Wattanakit C, Lapeyre V, Nokbin S, Warakulwit C, Limtrakul J, Kuhn A. Asymmetric synthesis using chiral-encoded metal. Nat Commun 2016; 7:12678. [PMID: 27562028 PMCID: PMC5007459 DOI: 10.1038/ncomms12678] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 07/22/2016] [Indexed: 12/02/2022] Open
Abstract
The synthesis of chiral compounds is of crucial importance in many areas of society and science, including medicine, biology, chemistry, biotechnology and agriculture. Thus, there is a fundamental interest in developing new approaches for the selective production of enantiomers. Here we report the use of mesoporous metal structures with encoded geometric chiral information for inducing asymmetry in the electrochemical synthesis of mandelic acid as a model molecule. The chiral-encoded mesoporous metal, obtained by the electrochemical reduction of platinum salts in the presence of a liquid crystal phase and the chiral template molecule, perfectly retains the chiral information after removal of the template. Starting from a prochiral compound we demonstrate enantiomeric excess of the (R)-enantiomer when using (R)-imprinted electrodes and vice versa for the (S)-imprinted ones. Moreover, changing the amount of chiral cavities in the material allows tuning the enantioselectivity.
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Affiliation(s)
- Thittaya Yutthalekha
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac, France
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- NANOTEC Center for Nanoscale Materials Design for Green Nanotechnology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Chularat Wattanakit
- Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Veronique Lapeyre
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac, France
| | - Somkiat Nokbin
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- NANOTEC Center for Nanoscale Materials Design for Green Nanotechnology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Chompunuch Warakulwit
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
- NANOTEC Center for Nanoscale Materials Design for Green Nanotechnology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Jumras Limtrakul
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Alexander Kuhn
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac, France
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Xie Y, Wang M, Wu X, Chen C, Ma W, Dong Q, Yuan M, Hou Z. A pH-Responsive Soluble-Polymer-Based Homogeneous Ruthenium Catalyst for Highly Efficient Asymmetric Transfer Hydrogenation (ATH). Chempluschem 2016; 81:541-549. [DOI: 10.1002/cplu.201600062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 04/28/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Yinzheng Xie
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
| | - Mengpan Wang
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
| | - Xiaohui Wu
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
| | - Chen Chen
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
| | - Wenbo Ma
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
| | - Qifeng Dong
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
| | - Mingming Yuan
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
| | - Zhenshan Hou
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 China
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Štefane B, Požgan F. Metal-Catalysed Transfer Hydrogenation of Ketones. Top Curr Chem (Cham) 2016; 374:18. [DOI: 10.1007/s41061-016-0015-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/17/2016] [Indexed: 12/31/2022]
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Foubelo F, Nájera C, Yus M. Catalytic asymmetric transfer hydrogenation of ketones: recent advances. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.06.016] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu X, Chen C, Xiu Y, Chen A, Guo L, Zhang R, Chen J, Hou Z. Asymmetric transfer hydrogenation of ketones catalyzed by thermoregulated ionic liquid-regulating ruthenium complexes. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.04.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Affiliation(s)
- Dong Wang
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
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Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
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Chen T, Gu J, Wang H, Yuan G, Chen L, Xu X, Xiao W. Semi-Preparative Scale Separation of Emodin from Plant Extract by Using Molecularly Imprinted Polymer as Stationary Phase. Chromatographia 2014. [DOI: 10.1007/s10337-014-2691-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Muratsugu S, Weng Z, Nakai H, Isobe K, Kushida Y, Sasaki T, Tada M. Surface-assisted transfer hydrogenation catalysis on a γ-Al2O3-supported Ir dimer. Phys Chem Chem Phys 2014; 14:16023-31. [PMID: 23104018 DOI: 10.1039/c2cp43106h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel oxide-supported Ir dimer, which was found to be active for transfer hydrogenation of aromatic ketones, was prepared on a γ-Al(2)O(3) surface from an Ir dimer complex [Ir(2){η(5)-C(5)(CH(3))(5)}(2)(μ-CH(2))(2)] (Ir(2)) with an Ir=Ir bond. Detailed characterization of the γ-Al(2)O(3)-supported Ir dimer (Ir(2)/γ-Al(2)O(3)) revealed that the structure of Ir(2) consisted of an Ir dimer with an Ir-Ir bond attached to the γ-Al(2)O(3) surface by two bridged Ir-(OAl)(2)-Ir bonds. The supported Ir(2)/γ-Al(2)O(3) dimer with bridged Ir-(OAl)(2)-Ir bonds acted as an efficient catalyst for transfer hydrogenation (turnover number of acetophenone = 699 (24 h)), while homogeneous Ir(2), SiO(2)- and MgO-supported Ir(2) were much less active. A structural transformation at the interface of the Ir dimer and the γ-Al(2)O(3) surface was suggested to assist the transfer hydrogenation catalysis via the formation of an Ir(2)-H(2) species on the γ-Al(2)O(3) surface (Ir(2)-H(2)/γ-Al(2)O(3)) as a key intermediate in the transfer hydrogenation. The present study deepened the understanding of the role and dynamic behaviour of the oxide surface in the hydrogen transfer catalysis on the supported Ir dimer.
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Affiliation(s)
- Satoshi Muratsugu
- Institute for Molecular Science, Nishigo-naka, Myodaiji, Okazaki, Aichi, Japan
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Zaera F. Shape-controlled nanostructures in heterogeneous catalysis. CHEMSUSCHEM 2013; 6:1797-1820. [PMID: 24014476 DOI: 10.1002/cssc.201300398] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Indexed: 06/02/2023]
Abstract
Nanotechnologies have provided new methods for the preparation of nanomaterials with well-defined sizes and shapes, and many of those procedures have been recently implemented for applications in heterogeneous catalysis. The control of nanoparticle shape in particular offers the promise of a better definition of catalytic activity and selectivity through the optimization of the structure of the catalytic active site. This extension of new nanoparticle synthetic procedures to catalysis is in its early stages, but has shown some promising leads already. Here, we survey the major issues associated with this nanotechnology-catalysis synergy. First, we discuss new possibilities associated with distinguishing between the effects originating from nanoparticle size versus those originating from nanoparticle shape. Next, we survey the information available to date on the use of well-shaped metal and non-metal nanoparticles as active phases to control the surface atom ensembles that define the catalytic site in different catalytic applications. We follow with a brief review of the use of well-defined porous materials for the control of the shape of the space around that catalytic site. A specific example is provided to illustrate how new selective catalysts based on shape-defined nanoparticles can be designed from first principles by using fundamental mechanistic information on the reaction of interest obtained from surface-science experiments and quantum-mechanics calculations. Finally, we conclude with some thoughts on the state of the field in terms of the advances already made, the future potentials, and the possible limitations to be overcome.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry, University of California, Riverside, CA 92521 (USA).
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Abstract
In this review, a brief survey is offered on the main nanotechnology synthetic approaches available to heterogeneous catalysis, and a few examples are provided of their usefulness for such applications. We start by discussing the use of colloidal, reverse micelle, and dendrimer chemistry in the production of active metal and metal oxide nanoparticles with well-defined sizes, shapes, and compositions, as a way to control the surface atomic ensembles available for selective catalysis. Next we introduce the use of sol-gel and atomic layer deposition chemistry for the production and modification of high-surface-area supports and active phases. Reference is then made to the more complex active sites that can be created or carved on such supports by using organic structure-directing agents. We follow with an examination of the ability to achieve multiple functionality in catalysis via the design of dumbbells, core@shell, and other complex nanostructures. Finally, we consider the mixed molecular-nanostructure approach that can be used to develop more demanding catalytic sites, by derivatizing the surface of solids or tethering or immobilizing homogeneous catalysts or other chemical functionalities. We conclude with a personal and critical perspective on the importance of fully exploiting the synergies between nanotechnology and surface science to optimize the search for new catalysts and catalytic processes.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry, University of California, Riverside, CA 92521, USA.
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Muratsugu S, Tada M. Molecularly imprinted Ru complex catalysts integrated on oxide surfaces. Acc Chem Res 2013; 46:300-11. [PMID: 23030829 DOI: 10.1021/ar300142p] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Selective catalysis is critical for the development of green chemical processes, and natural enzymes that possess specialized three-dimensional reaction pockets with catalytically active sites represent the most sophisticated systems for selective catalysis. A reaction space in an enzyme consists of an active metal center, functional groups for molecular recognition (such as amino acids), and a surrounding protein matrix to prepare the reaction pocket. The artificial design of such an integrated catalytic unit in a non-enzymatic system remains challenging. Molecular imprinting of a supported metal complex provides a promising approach for shape-selective catalysis. In this process, an imprinted cavity with a shape matched to a template molecule is created in a polymer matrix with a catalytically active metal site. In this Account, we review our studies on molecularly imprinted metal complex catalysts, focusing on Ru complexes, on oxide surfaces for shape-selective catalysis. Oxide surface-attached transition metal complex catalysts not only improve thermal stability and catalyst dispersion but also provide unique catalytic performance not observed in homogeneous precursors. We designed molecularly imprinted Ru complexes by using surface-attached Ru complexes with template ligands and inorganic/organic surface matrix overlayers to control the chemical environment around the active metal complex catalysts on oxide surfaces. We prepared the designed, molecularly imprinted Ru complexes on SiO(2) surfaces in a step-by-step manner and characterized them with solid-state (SS) NMR, diffuse-reflectance (DR) UV-vis, X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller isotherm (BET), X-ray fluorescence (XRF), and Ru K-edge extended X-ray absorption fine structure (EXAFS). The catalytic performances of these Ru complexes suggest that this process of molecular imprinting facilitates the artificial integration of catalytic functions at surfaces. Further advances such as the imprinting of a transition state structure or the addition of multiple binding sites could lead to systems that can achieve 100% selective catalysis.
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Affiliation(s)
- Satoshi Muratsugu
- Institute for Molecular Science and Department of Structural Molecular Science, The Graduate University for Advanced Studies (SOKENDAI), 38 Nishigo-naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Mizuki Tada
- Institute for Molecular Science and Department of Structural Molecular Science, The Graduate University for Advanced Studies (SOKENDAI), 38 Nishigo-naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
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Indra A, Maity P, Bhaduri S, Lahiri GK. Chemoselective Hydrogenation and Transfer Hydrogenation of Olefins and Carbonyls with the Cluster-Derived Ruthenium Nanocatalyst in Water. ChemCatChem 2012. [DOI: 10.1002/cctc.201200448] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zaera F. Infrared Absorption Spectroscopy of Adsorbed CO: New Applications in Nanocatalysis for an Old Approach. ChemCatChem 2012. [DOI: 10.1002/cctc.201200195] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhou X, Wu X, Yang B, Xiao J. Varying the ratio of formic acid to triethylamine impacts on asymmetric transfer hydrogenation of ketones. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.02.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Yang Y, Weng Z, Muratsugu S, Ishiguro N, Ohkoshi SI, Tada M. Preparation and Catalytic Performances of a Molecularly Imprinted Ru-Complex Catalyst with an NH2 Binding Site on a SiO2 Surface. Chemistry 2011; 18:1142-53. [DOI: 10.1002/chem.201100529] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 09/10/2011] [Indexed: 11/08/2022]
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Václavík J, Kačer P, Kuzma M, Červený L. Opportunities offered by chiral η⁶-arene/N-arylsulfonyl-diamine-RuII catalysts in the asymmetric transfer hydrogenation of ketones and imines. Molecules 2011; 16:5460-95. [PMID: 21712760 PMCID: PMC6264677 DOI: 10.3390/molecules16075460] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 06/14/2011] [Accepted: 06/17/2011] [Indexed: 11/22/2022] Open
Abstract
Methods for the asymmetric transfer hydrogenation (ATH) of ketones and imines are still being intensively studied and developed. Of foremost interest is the use of Noyori's [RuCl(η⁶-arene)(N-TsDPEN)] complexes in the presence of a hydrogen donor (i-PrOH, formic acid). These complexes have found numerous practical applications and have been extensively modified. The resulting derivatives have been heterogenized, used in ATH in water or ionic liquids and even some attempts have been made to approach the properties of biocatalysts. Therefore, an appropriate modification of the catalyst that suits the specific requirements for the reaction conditions is very often readily available. The mechanism of the reaction has also been explored to a great extent. Model substrates, acetophenone (a ketone) and 6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline (an imine), are both reduced by this Ru catalytic system with almost perfect selectivity. However, in each case the major product is a different enantiomer (S- for an alcohol, R- for an amine when the S,S-catalyst is used), which demanded an in-depth mechanistic investigation. Full-scale molecular modelling of this system enabled us to visualize the plausible 3D structures of the transition states, allowing the proposition of a viable explanation of previous experimental findings.
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Affiliation(s)
- Jiří Václavík
- Department of Organic Technology, Institute of Chemical Technology, Technická 5, CZ-166 28 Prague, Czech Republic
| | - Petr Kačer
- Department of Organic Technology, Institute of Chemical Technology, Technická 5, CZ-166 28 Prague, Czech Republic
| | - Marek Kuzma
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20, Prague, Czech Republic
| | - Libor Červený
- Department of Organic Technology, Institute of Chemical Technology, Technická 5, CZ-166 28 Prague, Czech Republic
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Schirhagl R, Latif U, Dickert FL. Atrazine detection based on antibody replicas. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11576f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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