1
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Ohsedo Y, Miyata K. Chemiluminescent Reaction Induced by Mixing of Fluorescent-Dye-Containing Molecular Organogels with Aqueous Oxidant Solutions. Gels 2024; 10:492. [PMID: 39195021 DOI: 10.3390/gels10080492] [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: 07/03/2024] [Revised: 07/18/2024] [Accepted: 07/24/2024] [Indexed: 08/29/2024] Open
Abstract
Chemiluminescence in solution-based systems has been extensively studied for the chemical analysis of biomolecules. However, investigations into the control of chemiluminescence reactions in gel-based systems, which offer flexibility in reaction conditions (such as the softness of the reaction environment), have only recently begun in polymer materials, with limited exploration in low-molecular-weight gelator (LMWG) systems. In this study, we investigated the chemiluminescence behaviors in the gel states using LMWG systems and evaluated their applicability to fluorescent-dye-containing molecular organogel systems/oxidant-containing aqueous systems. Using diethyl succinate organogels composed of 12-hydroxystearic acid as a molecular organogelator, we examined the fluorescent properties of various fluorescent dyes mixed with oxidant aqueous solutions. As the reaction medium transitioned from the solution to the gel state, the emission color and chemiluminescence duration changed significantly, and distinct characteristics were observed, for each dye. This result indicates that the chemiluminescence behavior differs significantly between the solution and gel states. Additionally, visual inspection and dynamic viscoelastic measurements of the mixed fluorescent dye-containing molecular gels and oxidant-containing aqueous solutions confirmed that the chemiluminescence induced by the mixing occurred within the gel phase. Furthermore, the transition from the solution to the gel state may allow for the modulation of the mixing degree, thereby enabling control over the progression of the chemiluminescence reaction.
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Affiliation(s)
- Yutaka Ohsedo
- Division of Engineering, Faculty of Engineering, Nara Women's University, Kitauoyahigashi-machi, Nara 630-8506, Japan
| | - Kiho Miyata
- Faculty of Human Life and Environment, Nara Women's University, Kitauoyahigashi-machi, Nara 630-8506, Japan
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2
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Yang F, Geng T, Shen H, Kou Y, Xiao G, Zou B, Chen Y. Mechanochemical Release of Fluorophores from a "Flex-activated" Mechanophore. Angew Chem Int Ed Engl 2023; 62:e202308662. [PMID: 37565546 DOI: 10.1002/anie.202308662] [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: 06/20/2023] [Revised: 07/29/2023] [Accepted: 08/09/2023] [Indexed: 08/12/2023]
Abstract
Optical force probes that can release force-dependent and visualized signals with minimal changes in the polymer main chains under mechanical load are highly sought after but currently limited. In this study, we introduce a flex-activated mechanophore (FA) based on the Diels-Alder adduct of anthracene and dimethyl acetylenedicarboxylatea that exhibits turn-on mechanofluorescence. We demonstrate that when FA is incorporated into polymer networks or in its crystalline state, it can release fluorescent anthracenes through a retro-Diels-Alder mechanochemical reaction under compression or hydrostatic high pressure, respectively. The flex-activated mechanism of FA is successfully confirmed. Furthermore, we systematically modulate the force delivered to the mechanophore by varying the crosslinking density of the networks and the applied macroscopic pressures. This modulation leads to incremental increases in mechanophore activation, successive release of anthracenes, and quantitative enhancement of fluorescence intensity. The exceptional potential of FA as a sensitive force probe in different bulk states is highlighted, benefiting from its unique flex-activated mode with highly emissive fluorophore releasing. Overall, this report enriches our understanding of the structures and functions of flex-activated mechanophores and polymeric materials.
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Affiliation(s)
- Fan Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- Fujian Provincial Key Laboratory of Ecology-Toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas, College of Environmental and Biological Engineering, Putian University, Putian, 351100, P. R. China
| | - Ting Geng
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Hang Shen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yan Kou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Yulan Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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3
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Clough JM, Kilchoer C, Wilts BD, Weder C. Hierarchically Structured Deformation-Sensing Mechanochromic Pigments. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206416. [PMID: 36935363 PMCID: PMC10161078 DOI: 10.1002/advs.202206416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/23/2023] [Indexed: 05/06/2023]
Abstract
Mechanochromic materials alter their color in response to mechanical force and are useful for both fundamental studies and practical applications. Several approaches are used to render polymers mechanochromic, but they generally suffer from limitations in sensing range, capacity to provide quantitative information, and their capability to enable broad and simple implementation. Here, is it reported that these problems can be overcome by combining photonic structures, which alter their reflection upon deformation, with covalent mechanophores, whose spectral properties change upon mechanically induced bond scission, in hierarchically structured mechanochromic pigments. This is achieved by synthesizing microspheres consisting of an elastic polymer with spiropyran-based cross-links and non-close-packed silica nanoparticles. A strain of less than 1% can be detected in a shift of the reflection band from the photonic structure, while the onset strain for the conversion of the spiropyran into fluorescent merocyanine ranges from 30% to 70%, creating a broad strain detection range. The two responses are tailorable and synergistic, permitting the activation strain for the mechanophore response to be tuned. The mechano-sensing photonic pigments are demonstrated to be readily incorporated into different polymeric materials of interest and quantitatively probe spatially heterogeneous deformations over a large strain range.
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Affiliation(s)
- Jess M Clough
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Cédric Kilchoer
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Bodo D Wilts
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
- Chemistry and Physics of Materials, University of Salzburg, Jakob-Haringer-Strasse 2a, Salzburg, 5020, Austria
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
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4
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3D Printed Microfluidic Chemiluminescence PoC Device with Self-Powering and Integrated Incubating System: Validation via ALP Detection on Disposable µPADs. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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5
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Shinde KS, Michael P, Fuhrmann D, Binder WH. A mechanochemically active metal‐organic framework (MOF) based on Cu‐bis‐NHC‐linkers: synthesis and mechano‐catalytic activation. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kshitij Sanjay Shinde
- Macromolecular Chemistry Division of Technical and Macromolecular Chemistry Institute of Chemistry Faculty of Natural Science II (Chemistry Physics and Mathematics) Martin Luther University Halle‐Wittenberg Von‐Danckelmann‐Platz 4 D‐06120 Halle (Saale) Germany
| | - Philipp Michael
- Macromolecular Chemistry Division of Technical and Macromolecular Chemistry Institute of Chemistry Faculty of Natural Science II (Chemistry Physics and Mathematics) Martin Luther University Halle‐Wittenberg Von‐Danckelmann‐Platz 4 D‐06120 Halle (Saale) Germany
| | - Daniel Fuhrmann
- Institut für Anorganische Chemie Universität Leipzig Fakultät für Chemie und Mineralogie Johannisallee 29 D‐04103 Leipzig Germany
| | - Wolfgang H. Binder
- Macromolecular Chemistry Division of Technical and Macromolecular Chemistry Institute of Chemistry Faculty of Natural Science II (Chemistry Physics and Mathematics) Martin Luther University Halle‐Wittenberg Von‐Danckelmann‐Platz 4 D‐06120 Halle (Saale) Germany
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6
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Shen H, Cao Y, Lv M, Sheng Q, Zhang Z. Polymer mechanochemistry for the release of small cargoes. Chem Commun (Camb) 2022; 58:4813-4824. [PMID: 35352709 DOI: 10.1039/d2cc00147k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The field of force-induced release of small cargoes within polymeric materials has experienced rapid growth over the past decade, not only including achieving diversified functional materials that report force, trigger degradation, activate drugs and release catalysts, but also involving investigations on the interesting force-coupled reactivity of mechanophores, such as ferrocenes. In this highlight article, we review the recent progress on polymer mechanochemistry that releases small cargoes, including small molecules and metal ions. Since mechanophores play a key role in force-responsive materials, we introduce the progress by discussing different types of mechanophores and their mechanochemical reactions for the release of acids, gases, fluorophores, drugs, iron ions, and so on. At the end, we provide our perspectives on the remaining challenges and future targets in this growing field.
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Affiliation(s)
- Hang Shen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Yunzheng Cao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Miaojiang Lv
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Qinxin Sheng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Zhengbiao Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China. .,State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
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7
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Chiroptical-responsive nanoprobe for the optosensing of chiral amino acids. Mikrochim Acta 2022; 189:184. [PMID: 35396633 DOI: 10.1007/s00604-022-05282-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/14/2022] [Indexed: 10/18/2022]
Abstract
A supersensitive chiroptical-responsive system of enantioselectively recognizing L- and D-tryptophan (Trp) based on ( +)-diacetyl-L-tartaric anhydride-functionalized 1,3,5-triformylphloroglucinol (DTA-functionalized Tp) was constructed for the first time. With a high fluorescence quantum yield of 15.2% and fluorescence lifetime of 57.6 μs, DTA-functionalized Tp as both fluorescent and chiral recognition nanoprobe was used for the discrimination of L- and D-Trp with excitation/emission maxima at 330/490 nm within 3 min. The linear range of the fluorescence sensing was 0.002-0.15 μg mL-1, and the detection limit achieved 1.4 ng mL-1. Furthermore, a smartphone was employed as a detector and processor to couple with the chiroptical-responsive nanoprobe for establishing a novel and visual integration system for rapid and real-time detection of chiral amino acids with a detection limit of 13 ng mL-1. The spiked recoveries of L-Trp in two commercially available functional beverages ranged from 86.00 to 118.33% in fluorescence and smartphone-based sensing system. Based on the excellent chiroptical-responsive effects, high stability, and biocompatibility, the chiroptical-responsive nanoprobe was successfully applied to visual optosensing and fluorescence imaging in response to L- and D-Trp in HeLa cells. This discrimination methodology with high sensitivity and enantioselectively shows great potential for in-site visually monitoring chiral amino acids in real food samples and tracking physiological processes.
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8
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Chen Y, Sanoja G, Creton C. Mechanochemistry unveils stress transfer during sacrificial bond fracture of tough multiple network elastomers. Chem Sci 2021; 12:11098-11108. [PMID: 34522307 PMCID: PMC8386638 DOI: 10.1039/d1sc03352b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 07/02/2021] [Indexed: 01/05/2023] Open
Abstract
The molecular level transfer of stress from a stiff percolating filler to a stretchable matrix is a crucial and generic mechanism of toughening in soft materials. Yet the molecular details of how this transfer occurs have so far been experimentally unreachable. Model multiple network elastomers containing spiropyran (SP) force sensors incorporated into the stiff filler network or into the stretchable matrix network are used here to detect and investigate the mechanism of stress transfer between distinct populations of polymer strands. We find that as the filler network progressively breaks by random bond scission, there is a critical stress where cooperative bond scission occurs and the macroscopic stretch increases discontinuously by necking. Surprisingly, SP molecules reveal that even in the necked region both filler and matrix chains share the load, with roughly 90% of the SPs force-activated in the filler chains before necking still being loaded in the necked region where significant activation of the SP incorporated into the matrix chains occurs. This result, where both networks remain loaded upon necking, is qualitatively consistent with the model proposed by Brown, where holes or microcracks are formed in the stiff regions and are bridged by stretched matrix chains. Detection of merocyanine (i.e. activated SP) fluorescence by confocal microscopy shows that such microcrack formation is also active at the crack tip even for materials that do not exhibit macroscopic necking. Additionally, we demonstrate that when the ethyl acrylate monomer is replaced by hexyl methacrylate in the first network, preventing molecular connections between the two networks, the stress transmission is less efficient. This study outlines the different roles played by these multiple networks in the onset of fracture and provides molecular insights for the construction of molecular models of fracture of elastomers.
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Affiliation(s)
- Yinjun Chen
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, PSL University, Sorbonne Université, CNRS F-75005 Paris France
| | - Gabriel Sanoja
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, PSL University, Sorbonne Université, CNRS F-75005 Paris France
| | - Costantino Creton
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, PSL University, Sorbonne Université, CNRS F-75005 Paris France
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9
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Sammon MS, Biewend M, Michael P, Schirra S, Ončák M, Binder WH, Beyer MK. Activation of a Copper Biscarbene Mechano-Catalyst Using Single-Molecule Force Spectroscopy Supported by Quantum Chemical Calculations. Chemistry 2021; 27:8723-8729. [PMID: 33822419 PMCID: PMC8251802 DOI: 10.1002/chem.202100555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Indexed: 11/17/2022]
Abstract
Single-molecule force spectroscopy allows investigation of the effect of mechanical force on individual bonds. By determining the forces necessary to sufficiently activate bonds to trigger dissociation, it is possible to predict the behavior of mechanophores. The force necessary to activate a copper biscarbene mechano-catalyst intended for self-healing materials was measured. By using a safety line bypassing the mechanophore, it was possible to pinpoint the dissociation of the investigated bond and determine rupture forces to range from 1.6 to 2.6 nN at room temperature in dimethyl sulfoxide. The average length-increase upon rupture of the Cu-C bond, due to the stretching of the safety line, agrees with quantum chemical calculations, but the values exhibit an unusual scattering. This scattering was assigned to the conformational flexibility of the mechanophore, which includes formation of a threaded structure and recoiling of the safety line.
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Affiliation(s)
- Matthew S. Sammon
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Michel Biewend
- Department of Macromolecular ChemistryMartin-Luther-Universität Halle-Wittenbergvon-Danckelmann-Platz 406120Halle (Saale)Germany
| | - Philipp Michael
- Department of Macromolecular ChemistryMartin-Luther-Universität Halle-Wittenbergvon-Danckelmann-Platz 406120Halle (Saale)Germany
| | - Simone Schirra
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Milan Ončák
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
| | - Wolfgang H. Binder
- Department of Macromolecular ChemistryMartin-Luther-Universität Halle-Wittenbergvon-Danckelmann-Platz 406120Halle (Saale)Germany
| | - Martin K. Beyer
- Institut für Ionenphysik und Angewandte PhysikUniversität InnsbruckTechnikerstraße 256020InnsbruckAustria
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10
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Shen H, Larsen MB, Roessler AG, Zimmerman PM, Boydston AJ. Mechanochemical Release of N-Heterocyclic Carbenes from Flex-Activated Mechanophores. Angew Chem Int Ed Engl 2021; 60:13559-13563. [PMID: 33826803 DOI: 10.1002/anie.202100576] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/25/2021] [Indexed: 11/09/2022]
Abstract
We have discovered a new flex-activated mechanophore that releases an N-heterocyclic carbene (NHC) under mechanical load. The mechanophore design is based upon NHC-carbodiimide (NHC-CDI) adducts and demonstrates an important first step toward flex-activated designs capable of further downstream reactivities. Since the flex-activation is non-destructive to the main polymer chains, the material can be subjected to multiple compression cycles to achieve iterative increases in the activation percentage of mechanophores. Two different NHC structures were demonstrated, signifying the potential modularity of the mechanophore design.
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Affiliation(s)
- Hang Shen
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Michael B Larsen
- Department of Materials Science and Engineering, Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA.,Department of Chemistry, Western Washington University, Bellingham, WA, 98225, USA
| | - Allison G Roessler
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, MI, 48109, USA.,Department of Chemistry, Oglethorpe University, 4484 Peachtree Rd, Atlanta, GA, 30319, USA
| | - Paul M Zimmerman
- Department of Chemistry, University of Michigan, 930 N. University Ave, Ann Arbor, MI, 48109, USA
| | - Andrew J Boydston
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA.,Department of Materials Science and Engineering, Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA.,Department of Chemistry, Western Washington University, Bellingham, WA, 98225, USA
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11
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Shen H, Larsen MB, Roessler AG, Zimmerman PM, Boydston AJ. Mechanochemical Release of
N
‐Heterocyclic Carbenes from Flex‐Activated Mechanophores. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100576] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hang Shen
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
| | - Michael B. Larsen
- Department of Materials Science and Engineering Department of Chemical and Biological Engineering University of Wisconsin-Madison Madison WI 53706 USA
- Department of Chemistry Western Washington University Bellingham WA 98225 USA
| | - Allison G. Roessler
- Department of Chemistry University of Michigan 930 N. University Ave Ann Arbor MI 48109 USA
- Department of Chemistry Oglethorpe University 4484 Peachtree Rd Atlanta GA 30319 USA
| | - Paul M. Zimmerman
- Department of Chemistry University of Michigan 930 N. University Ave Ann Arbor MI 48109 USA
| | - Andrew J. Boydston
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
- Department of Materials Science and Engineering Department of Chemical and Biological Engineering University of Wisconsin-Madison Madison WI 53706 USA
- Department of Chemistry Western Washington University Bellingham WA 98225 USA
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12
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Bettens T, Eeckhoudt J, Hoffmann M, Alonso M, Geerlings P, Dreuw A, De Proft F. Designing Force Probes Based on Reversible 6π-Electrocyclizations in Polyenes Using Quantum Chemical Calculations. J Org Chem 2021; 86:7477-7489. [PMID: 33988028 DOI: 10.1021/acs.joc.1c00482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The conjugated π-system in polyenes can be interrupted by electrocyclic ring-closure reactions. In this work, this 6π-electrocylization is shown by means of density functional calculations to be reversible by the application of an external mechanical pulling force at the terminal ends of the interrupted polyene chain. The test systems were constrained in a fused ring system, thus locking the orientation of three π-bonds and generally promoting 6π-electrocyclic ring-closure reactions. For several systems, the forward reaction is exergonic and the corresponding reaction barrier is comparable to those reported in the literature. The reverse reaction is triggered by an external pulling force of 2 nN (nano-Newton) or less and also becomes exergonic in all investigated polyenes under these force conditions. Moreover, it proceeds via a low reaction barrier when a pulling force of 2 nN is active, indicating that the mechanical force is an efficient stimulus for triggering ring-opening reactions. Analysis of the strain energy induced by this mechanical force confirms an optimal activation of the corresponding C-C σ-bond that breaks upon ring opening when the pulling positions are located on the polyene chain.
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Affiliation(s)
- Tom Bettens
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium
| | - Jochen Eeckhoudt
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium
| | - Marvin Hoffmann
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205A, D-69120 Heidelberg, Germany
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium
| | - Paul Geerlings
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer Feld 205A, D-69120 Heidelberg, Germany
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium
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13
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Affiliation(s)
- Panpan Li
- National Engineering Research Center for Colloidal Materials School of Chemistry and Chemical Engineering Shandong University Jinan Shandong 250100 P. R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry Shandong University Ministry of Education Jinan Shandong 250100 P. R. China
| | - Xu Wang
- National Engineering Research Center for Colloidal Materials School of Chemistry and Chemical Engineering Shandong University Jinan Shandong 250100 P. R. China
- Key Laboratory of Colloid and Interface Chemistry Shandong University Ministry of Education Jinan Shandong 250100 P. R. China
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14
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O’Neill RT, Boulatov R. The many flavours of mechanochemistry and its plausible conceptual underpinnings. Nat Rev Chem 2021; 5:148-167. [PMID: 37117533 DOI: 10.1038/s41570-020-00249-y] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
Mechanochemistry describes diverse phenomena in which mechanical load affects chemical reactivity. The fuzziness of this definition means that it includes processes as seemingly disparate as motor protein function, organic synthesis in a ball mill, reactions at a propagating crack, chemical actuation, and polymer fragmentation in fast solvent flows and in mastication. In chemistry, the rate of a reaction in a flask does not depend on how fast the flask moves in space. In mechanochemistry, the rate at which a material is deformed affects which and how many bonds break. In other words, in some manifestations of mechanochemistry, macroscopic motion powers otherwise endergonic reactions. In others, spontaneous chemical reactions drive mechanical motion. Neither requires thermal or electrostatic gradients. Distinct manifestations of mechanochemistry are conventionally treated as being conceptually independent, which slows the field in its transformation from being a collection of observations to a rigorous discipline. In this Review, we highlight observations suggesting that the unifying feature of mechanochemical phenomena may be the coupling between inertial motion at the microscale to macroscale and changes in chemical bonding enabled by transient build-up and relaxation of strains, from macroscopic to molecular. This dynamic coupling across multiple length scales and timescales also greatly complicates the conceptual understanding of mechanochemistry.
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15
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Razgoniaev AO, Glasstetter LM, Kouznetsova TB, Hall KC, Horst M, Craig SL, Franz KJ. Single-Molecule Activation and Quantification of Mechanically Triggered Palladium-Carbene Bond Dissociation. J Am Chem Soc 2021; 143:1784-1789. [PMID: 33480680 DOI: 10.1021/jacs.0c13219] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-complexed N-heterocyclic carbene (NHC) mechanophores are latent reactants and catalysts for a range of mechanically driven chemical responses, but mechanochemical scission of the metal-NHC bond has not been experimentally characterized. Here we report the single-molecule force spectroscopy of ligand dissociation from a pincer NHC-pyridine-NHC Pd(II) complex. The force-coupled rate constant for ligand dissociation reaches 50 s-1 at forces of approximately 930 pN. Experimental and computational observations support a dissociative, rather than associative, mechanism of ligand displacement, with rate-limiting scission of the Pd-NHC bond followed by rapid dissociation of the pyridine moiety from Pd.
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Affiliation(s)
- Anton O Razgoniaev
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Logan M Glasstetter
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Tatiana B Kouznetsova
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Kacey C Hall
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Matias Horst
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Stephen L Craig
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Katherine J Franz
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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16
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Ayer MA, Verde-Sesto E, Liu CH, Weder C, Lattuada M, Simon YC. Modeling ultrasound-induced molecular weight decrease of polymers with multiple scissile azo-mechanophores. Polym Chem 2021. [DOI: 10.1039/d1py00420d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selective and non-selective chain scission compete upon ultrasonic treatment of polymers with randomly distributed azo units.
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Affiliation(s)
- Mathieu A. Ayer
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - Ester Verde-Sesto
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
- Centro de Física de Materiales (CSIC
| | - Cheyenne H. Liu
- School of Polymer Science and Engineering
- The University of Southern Mississippi
- 118 College Dr
- USA
| | - Christoph Weder
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - Marco Lattuada
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
- Department of Chemistry
| | - Yoan C. Simon
- Adolphe Merkle Institute
- University of Fribourg
- 1700 Fribourg
- Switzerland
- School of Polymer Science and Engineering
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17
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Chen Y, Mellot G, van Luijk D, Creton C, Sijbesma RP. Mechanochemical tools for polymer materials. Chem Soc Rev 2021; 50:4100-4140. [DOI: 10.1039/d0cs00940g] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This review aims to provide a field guide for the implementation of mechanochemistry in synthetic polymers by summarizing the molecules, materials, and methods that have been developed in this field.
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Affiliation(s)
- Yinjun Chen
- Department of Chemical Engineering & Chemistry and Institute for Complex Molecular Systems
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Gaëlle Mellot
- Laboratoire Sciences et Ingénierie de la Matière Molle
- ESPCI Paris
- PSL University
- Sorbonne Université
- CNRS
| | - Diederik van Luijk
- Department of Chemical Engineering & Chemistry and Institute for Complex Molecular Systems
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Costantino Creton
- Laboratoire Sciences et Ingénierie de la Matière Molle
- ESPCI Paris
- PSL University
- Sorbonne Université
- CNRS
| | - Rint P. Sijbesma
- Department of Chemical Engineering & Chemistry and Institute for Complex Molecular Systems
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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18
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Zhang Y, Wang Z, Kouznetsova TB, Sha Y, Xu E, Shannahan L, Fermen-Coker M, Lin Y, Tang C, Craig SL. Distal conformational locks on ferrocene mechanophores guide reaction pathways for increased mechanochemical reactivity. Nat Chem 2020; 13:56-62. [DOI: 10.1038/s41557-020-00600-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 11/03/2020] [Indexed: 12/14/2022]
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19
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Wu M, Guo Z, He W, Yuan W, Chen Y. Empowering self-reporting polymer blends with orthogonal optical properties responsive in a broader force range. Chem Sci 2020; 12:1245-1250. [PMID: 34163886 PMCID: PMC8179123 DOI: 10.1039/d0sc06140a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 11/24/2020] [Indexed: 12/17/2022] Open
Abstract
Self-reporting polymers, which can indicate damage with perceptible optical signals in a tailored force range, are useful as stress-sensitive sensors. We demonstrate a simple approach to realize this function by embedding two distinct mechanophores - rhodamine (Rh) and bis(adamantyl)-1,2-dioxetane (Ad), in polyurethane/polylactic acid blends. The deformed blends generate red coloration and red chemiluminescence. Such a unique dual-responsive behavior was evaluated by solid-state UV-vis spectroscopy, macroscopic tensile tests with in situ RGB and light intensity analyses, which supported a stress-correlated occurrence of the ring-opening of Rh, the scission of Ad and the fluorescence resonance energy transfer process between the respective mechanochemical species. Complementarity stemming from the difference in properties and manifestations of the two mechanophores is essential. That is, the more labile Rh allows shifting the appreciable optical changes to a much lower force threshold; the transient nature and high dynamic range of mechanochemiluminescence from Ad map in real time where and when many of the covalently incorporated dioxetane bonds break; besides, the disrupted yet non-scissile structure of Rh acts as a fluorescent acceptor to effectively harvest chemiluminescence from ruptured Ad. The current strategy is thus empowering multi-functional mechano-responsive polymers with greatly improved sensitivity and resolution for multimodal stress reporting.
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Affiliation(s)
- Mengjiao Wu
- Department of Chemistry, Key Laboratory of Mechanism Theory and Equipment Design of State Ministry of Education, Tianjin University Tianjin 300354 China
| | - Zhen Guo
- Department of Chemistry, Key Laboratory of Mechanism Theory and Equipment Design of State Ministry of Education, Tianjin University Tianjin 300354 China
| | - Weiye He
- Department of Chemistry, Key Laboratory of Mechanism Theory and Equipment Design of State Ministry of Education, Tianjin University Tianjin 300354 China
| | - Wei Yuan
- Department of Chemistry, Key Laboratory of Mechanism Theory and Equipment Design of State Ministry of Education, Tianjin University Tianjin 300354 China
| | - Yulan Chen
- Department of Chemistry, Key Laboratory of Mechanism Theory and Equipment Design of State Ministry of Education, Tianjin University Tianjin 300354 China
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20
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Martínez‐Tong DE, Pomposo JA, Verde‐Sesto E. Triggering Forces at the Nanoscale: Technologies for Single‐Chain Mechanical Activation and Manipulation. Macromol Rapid Commun 2020; 42:e2000654. [DOI: 10.1002/marc.202000654] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/14/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Daniel E. Martínez‐Tong
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología University of the Basque Country (UPV/EHU) P. Manuel Lardizábal 3 Donostia‐San Sebastián 20018 Spain
- Centro de Física de Materiales (UPV/EHU‐CSIC) P. Manuel Lardizábal 5 San Sebastián 20018 Spain
| | - José A. Pomposo
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología University of the Basque Country (UPV/EHU) P. Manuel Lardizábal 3 Donostia‐San Sebastián 20018 Spain
- Centro de Física de Materiales (CFM) (CSIC‐UPV/EHU)—Materials Physics Center (MPC) Paseo Manuel de Lardizábal 5 Donostia‐San Sebastián 20018 Spain
- IKERBASQUE—Basque Foundation for Science Plaza Euskadi 5 Bilbao 48009 Spain
| | - Ester Verde‐Sesto
- Centro de Física de Materiales (CFM) (CSIC‐UPV/EHU)—Materials Physics Center (MPC) Paseo Manuel de Lardizábal 5 Donostia‐San Sebastián 20018 Spain
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21
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Pan Y, Zhang H, Xu P, Tian Y, Wang C, Xiang S, Boulatov R, Weng W. A Mechanochemical Reaction Cascade for Controlling Load-Strengthening of a Mechanochromic Polymer. Angew Chem Int Ed Engl 2020; 59:21980-21985. [PMID: 32827332 PMCID: PMC7756483 DOI: 10.1002/anie.202010043] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Indexed: 11/08/2022]
Abstract
We demonstrate an intermolecular reaction cascade to control the force which triggers crosslinking of a mechanochromic polymer of spirothiopyran (STP). Mechanochromism arises from rapid reversible force-sensitive isomerization of STP to a merocyanine, which reacts rapidly with activated C=C bonds. The concentration of such bonds, and hence the crosslinking rate, is controlled by force-dependent dissociation of a Diels-Alder adduct of anthracene and maleimide. Because the adduct requires ca. 1 nN higher force to dissociate at the same rate as that of STP isomerization, the cascade limits crosslinking to overstressed regions of the material, which are at the highest rate of material damage. Using comb polymers decreased the minimum concentration of mechanophores required to crosslinking by about 100-fold compared to previous examples of load-strengthening materials. The approach described has potential for controlling a broad range of reaction sequences triggered by mechanical load.
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Affiliation(s)
- Yifei Pan
- Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen University422 South Siming RoadXiamenFujian361005P. R. China
| | - Huan Zhang
- Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen University422 South Siming RoadXiamenFujian361005P. R. China
| | - Piaoxue Xu
- Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen University422 South Siming RoadXiamenFujian361005P. R. China
| | - Yancong Tian
- Department of ChemistryUniversity of Liverpool and Donnan LabG31, Crown St.LiverpoolL69 7ZDUK
| | - Chenxu Wang
- Department of ChemistryUniversity of Liverpool and Donnan LabG31, Crown St.LiverpoolL69 7ZDUK
| | - Shishuai Xiang
- Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen University422 South Siming RoadXiamenFujian361005P. R. China
| | - Roman Boulatov
- Department of ChemistryUniversity of Liverpool and Donnan LabG31, Crown St.LiverpoolL69 7ZDUK
| | - Wengui Weng
- Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen University422 South Siming RoadXiamenFujian361005P. R. China
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22
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Traeger H, Kiebala DJ, Weder C, Schrettl S. From Molecules to Polymers-Harnessing Inter- and Intramolecular Interactions to Create Mechanochromic Materials. Macromol Rapid Commun 2020; 42:e2000573. [PMID: 33191595 DOI: 10.1002/marc.202000573] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/16/2020] [Indexed: 12/30/2022]
Abstract
The development of mechanophores as building blocks that serve as predefined weak linkages has enabled the creation of mechanoresponsive and mechanochromic polymer materials, which are interesting for a range of applications including the study of biological specimens or advanced security features. In typical mechanophores, covalent bonds are broken when polymers that contain these chemical motifs are exposed to mechanical forces, and changes of the optical properties upon bond scission can be harnessed as a signal that enables the detection of applied mechanical stresses and strains. Similar chromic effects upon mechanical deformation of polymers can also be achieved without relying on the scission of covalent bonds. The dissociation of motifs that feature directional noncovalent interactions, the disruption of aggregated molecules, and conformational changes in molecules or polymers constitute an attractive element for the design of mechanoresponsive and mechanochromic materials. In this article, it is reviewed how such alterations of molecules and polymers can be exploited for the development of mechanochromic materials that signal deformation without breaking covalent bonds. Recent illustrative examples are highlighted that showcase how the use of such mechanoresponsive motifs enables the visual mapping of stresses and damage in a reversible and highly sensitive manner.
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Affiliation(s)
- Hanna Traeger
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
| | - Derek J Kiebala
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
| | - Stephen Schrettl
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
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23
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Mier LJ, Adam G, Kumar S, Stauch T. The Mechanism of Flex-Activation in Mechanophores Revealed By Quantum Chemistry. Chemphyschem 2020; 21:2402-2406. [PMID: 32964598 PMCID: PMC7702058 DOI: 10.1002/cphc.202000739] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Indexed: 12/11/2022]
Abstract
Flex-activated mechanophores can be used for small-molecule release in polymers under tension by rupture of covalent bonds that are orthogonal to the polymer main chain. Using static and dynamic quantum chemical methods, we here juxtapose three different mechanical deformation modes in flex-activated mechanophores (end-to-end stretching, direct pulling of the scissile bonds, bond angle bendings) with the aim of proposing ways to optimize the efficiency of flex-activation in experiments. It is found that end-to-end stretching, which is a traditional approach to activate mechanophores in polymers, does not trigger flex-activation, whereas direct pulling of the scissile bonds or displacement of adjacent bond angles are efficient methods to achieve this goal. Based on the structural, energetic and electronic effects responsible for these observations, we propose ways of weakening the scissile bonds experimentally to increase the efficiency of flex-activation.
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Affiliation(s)
- Lennart J. Mier
- University of BremenInstitute for Physical and Theoretical ChemistryLeobener Straße NW2D-28359BremenGermany
- Current address: University of Bremen, UFTLeobener Str. 6D-28359BremenGermany
| | - Gheorghe Adam
- University of BremenInstitute for Physical and Theoretical ChemistryLeobener Straße NW2D-28359BremenGermany
| | - Sourabh Kumar
- University of BremenInstitute for Physical and Theoretical ChemistryLeobener Straße NW2D-28359BremenGermany
| | - Tim Stauch
- University of BremenInstitute for Physical and Theoretical ChemistryLeobener Straße NW2D-28359BremenGermany
- University of BremenBremen Center for Computational Materials ScienceAm Fallturm 1D-28359BremenGermany
- University of BremenMAPEX Center for Materials and ProcessesBibliothekstraße 1D-28359BremenGermany
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24
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Pan Y, Zhang H, Xu P, Tian Y, Wang C, Xiang S, Boulatov R, Weng W. A Mechanochemical Reaction Cascade for Controlling Load‐Strengthening of a Mechanochromic Polymer. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010043] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Yifei Pan
- Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 422 South Siming Road Xiamen Fujian 361005 P. R. China
| | - Huan Zhang
- Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 422 South Siming Road Xiamen Fujian 361005 P. R. China
| | - Piaoxue Xu
- Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 422 South Siming Road Xiamen Fujian 361005 P. R. China
| | - Yancong Tian
- Department of Chemistry University of Liverpool and Donnan Lab G31, Crown St. Liverpool L69 7ZD UK
| | - Chenxu Wang
- Department of Chemistry University of Liverpool and Donnan Lab G31, Crown St. Liverpool L69 7ZD UK
| | - Shishuai Xiang
- Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 422 South Siming Road Xiamen Fujian 361005 P. R. China
| | - Roman Boulatov
- Department of Chemistry University of Liverpool and Donnan Lab G31, Crown St. Liverpool L69 7ZD UK
| | - Wengui Weng
- Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University 422 South Siming Road Xiamen Fujian 361005 P. R. China
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25
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26
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Three concomitant C–C dissociation pathways during the mechanical activation of an N-heterocyclic carbene precursor. Nat Chem 2020; 12:826-831. [DOI: 10.1038/s41557-020-0509-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 06/12/2020] [Indexed: 11/09/2022]
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27
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Li F, Guo L, Li Z, He J, Cui H. Temporal-Spatial-Color Multiresolved Chemiluminescence Imaging for Multiplex Immunoassays Using a Smartphone Coupled with Microfluidic Chip. Anal Chem 2020; 92:6827-6831. [PMID: 32347095 DOI: 10.1021/acs.analchem.0c01405] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chemiluminescence (CL) bioassays have become a main technology in clinical diagnosis. However, multiplex analysis for sensitive and simultaneous determination of multiple biomarkers related to one disease in one detection run on a single chip in order to achieve fast and accurate diagnosis of diseases remains a great challenge. Herein, we report temporal-spatial-color multiresolved CL imaging strategy for multiplex label-free immunoassays using a smartphone coupled with a microfluidic chip. Temporal-spatial-color multiresolved CL imaging signals were produced by sequentially transporting coreactant H2O2 to the detection zones to initiate cobalt-based zeolitic imidazolate frameworks ZIF-67 catalyzed luminol-H2O2 CL and CL resonance energy transfer reactions. As proof-of-concept, a ZIF-67 regulated sensing strategy was developed for multiplex analysis of three model cancer biomarkers with a low detection limit of pg/mL to fg/mL, good selectivity, and low-cost, avoiding complicated labeling procedures and interferences from adjacent detection zones. This work opens a door for temporal-spatial-color multiresolved imaging for multiplex analysis.
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Affiliation(s)
- Fang Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, P.R. China
| | - Lei Guo
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, P.R. China
| | - Zimu Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, P.R. China
| | - Jianbo He
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, P.R. China
| | - Hua Cui
- CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
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28
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Rabha MM, Sharma U, Gohain Barua A. Bioluminescence emissions from the Indian winter species of firefly Diaphanes sp. J Biosci 2020. [DOI: 10.1007/s12038-020-00033-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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29
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Biewend M, Michael P, Binder WH. Detection of stress in polymers: mechanochemical activation of CuAAC click reactions in poly(urethane) networks. SOFT MATTER 2020; 16:1137-1141. [PMID: 31938798 DOI: 10.1039/c9sm02185j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report on copper(i)-bis(N-heterocyclic carbene)s (NHC) for quantitative stress-sensing, embedded within polyurethane networks, triggering a fluorogenic copper(i) azide alkyne cycloaddition (CuAAC) of 8-azido-2-naphtol and 3-hydroxy phenylacetylene. A completely transparent, force responsive poly(urethane) material is generated, allowing a quantification of the applied stress.
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Affiliation(s)
- Michel Biewend
- Macromolecular Chemistry, Division of Technical and Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle D-06120, Germany.
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30
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Yang F, Yuan Y, Sijbesma RP, Chen Y. Sensitized Mechanoluminescence Design toward Mechanically Induced Intense Red Emission from Transparent Polymer Films. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02221] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fan Yang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin 300354, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P. R. China
| | - Yuan Yuan
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin 300354, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P. R. China
| | - Rint P. Sijbesma
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven 5600 MB, Netherlands
| | - Yulan Chen
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin 300354, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P. R. China
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31
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Izak-Nau E, Campagna D, Baumann C, Göstl R. Polymer mechanochemistry-enabled pericyclic reactions. Polym Chem 2020. [DOI: 10.1039/c9py01937e] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polymer mechanochemical pericyclic reactions are reviewed with regard to their structural features and substitution prerequisites to the polymer framework.
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Affiliation(s)
- Emilia Izak-Nau
- DWI – Leibniz Institute for Interactive Materials
- 52056 Aachen
- Germany
| | - Davide Campagna
- DWI – Leibniz Institute for Interactive Materials
- 52056 Aachen
- Germany
- Institute for Technical and Macromolecular Chemistry
- RWTH Aachen University
| | - Christoph Baumann
- DWI – Leibniz Institute for Interactive Materials
- 52056 Aachen
- Germany
- Institute for Technical and Macromolecular Chemistry
- RWTH Aachen University
| | - Robert Göstl
- DWI – Leibniz Institute for Interactive Materials
- 52056 Aachen
- Germany
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32
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Karimata A, Patil PH, Khaskin E, Lapointe S, Fayzullin RR, Stampoulis P, Khusnutdinova JR. Highly sensitive mechano-controlled luminescence in polymer films modified by dynamic Cu I-based cross-linkers. Chem Commun (Camb) 2019; 56:50-53. [PMID: 31764935 DOI: 10.1039/c9cc08354e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dynamic CuI-based mechanophores used as cross-linkers in polybutylacrylates enable highly sensitive detection of mechanical stress even at small strain (<50%) and stress (<0.1 MPa) values via reversible changes in luminescence intensity. Such sensitivity is superior to previously reported systems based on classical organic mechanophores and it allows for direct visualization of mechanical stress by imaging methods.
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Affiliation(s)
- Ayumu Karimata
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Pradnya H Patil
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Eugene Khaskin
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Sébastien Lapointe
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Robert R Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, Kazan, 420088, Russia
| | | | - Julia R Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
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33
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Neumann S, Biewend M, Rana S, Binder WH. The CuAAC: Principles, Homogeneous and Heterogeneous Catalysts, and Novel Developments and Applications. Macromol Rapid Commun 2019; 41:e1900359. [PMID: 31631449 DOI: 10.1002/marc.201900359] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/06/2019] [Indexed: 01/08/2023]
Abstract
The copper-catalyzed azide/alkyne cycloaddition reaction (CuAAC) has emerged as the most useful "click" chemistry. Polymer science has profited enormously from CuAAC by its simplicity, ease, scope, applicability and efficiency. Basic principles of the CuAAC are reviewed with a focus on homogeneous and heterogeneous catalysts, ligands, anchimeric assistance, and basic chemical principles. Recent developments of ligand design and acceleration are discussed.
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Affiliation(s)
- Steve Neumann
- Institute of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, von Danckelmannplatz 4, D-06120, Halle (Saale), Germany
| | - Michel Biewend
- Institute of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, von Danckelmannplatz 4, D-06120, Halle (Saale), Germany
| | - Sravendra Rana
- School of Engineering University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, 248007, India
| | - Wolfgang H Binder
- Institute of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, von Danckelmannplatz 4, D-06120, Halle (Saale), Germany
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34
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Lin Y, Hansen HR, Brittain WJ, Craig SL. Strain-Dependent Kinetics in the Cis-to-Trans Isomerization of Azobenzene in Bulk Elastomers. J Phys Chem B 2019; 123:8492-8498. [PMID: 31525921 DOI: 10.1021/acs.jpcb.9b07088] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The cis-to-trans isomerization of azobenzene is accelerated in a bulk PDMS elastomer under uniaxial tension. The kinetics are cleanly described by a single-exponential first-order process (k = 2.7 × 10-5 s-1) in the absence of tension but become multiexponential under constant strains of 40-90%. The complex kinetics can be reasonably modeled as a two-component process. The majority (∼92%) process is slower and occurs with a rate constant that is similar to that of the unstrained system (k = 2.3-2.7 × 10-5 s-1), whereas the rate constant of the minority (∼8%) process increases from k = 10.1 × 10-5 s-1 at 40% strain to k = 21.3 × 10-5 s-1 at 90% strain. Simple models of expected force-rate relationships suggest that the average force of tension per strand in the minority component ranges from 28 to 44 pN across strains of 40-90%.
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Affiliation(s)
- Yangju Lin
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
| | - Heather R Hansen
- Department of Chemistry and Biochemistry , Texas State University , San Marcos , Texas 78666 , United States
| | - William J Brittain
- Department of Chemistry and Biochemistry , Texas State University , San Marcos , Texas 78666 , United States
| | - Stephen L Craig
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
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35
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Barbee MH, Wang J, Kouznetsova T, Lu M, Craig SL. Mechanochemical Ring-Opening of Allylic Epoxides. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01190] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Meredith H. Barbee
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Junpeng Wang
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Tatiana Kouznetsova
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Meilin Lu
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Stephen L. Craig
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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36
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Xia J, Zhao P, Pan S, Xu H. Diselenide-Containing Polymeric Vesicles with Osmotic Pressure Response. ACS Macro Lett 2019; 8:629-633. [PMID: 35619536 DOI: 10.1021/acsmacrolett.9b00250] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mechanophore is a kind of functional group that can undergo chemical reactions when given mechanical force stimuli. In this paper, osmotic pressure was used as an external force to trigger a diselenide exchange reaction. A diselenide bond containing block polymer capable of self-assembling to a vesicle structure and an ester bond containing a counterpart were synthesized in this study. When NaCl was added into the solution to generate the osmotic pressure difference inside and outside vesicles, diselenide containing vesicles were ruptured, while the ester bond counterpart stayed still. Further investigation into the chemical composition of both vesicles indicated the occurrence of the diselenide exchange reaction. The osmotic pressure response of the diselenide bond enriched the diselenide dynamic covalent chemistry and offers a potential application in a controlled release system.
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Affiliation(s)
- Jiahao Xia
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Peng Zhao
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Shuojiong Pan
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Huaping Xu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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37
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Sha Y, Zhang Y, Xu E, McAlister CW, Zhu T, Craig SL, Tang C. Generalizing metallocene mechanochemistry to ruthenocene mechanophores. Chem Sci 2019; 10:4959-4965. [PMID: 31183044 PMCID: PMC6526481 DOI: 10.1039/c9sc01347d] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 04/26/2019] [Indexed: 12/15/2022] Open
Abstract
Recent reports have shown that ferrocene displays an unexpected combination of force-free stability and mechanochemical activity, as it acts as the preferred site of chain scission along the backbone of highly extended polymer chains. This observation raises the tantalizing question as to whether similar mechanochemical activity might be present in other metallocenes, and, if so, what features of metallocenes dictate their relative ability to act as mechanophores. In this work, we elucidate polymerization methodologies towards main-chain ruthenocene-based polymers and explore the mechanochemistry of ruthenocene. We find that ruthenocene, in analogy to ferrocene, acts as a highly selective site of main chain scission despite the fact that it is even more inert. A comparison of ruthenocene and ferrocene reactivity provides insights as to the possible origins of metallocene mechanochemistry, including the relative importance of structural and thermodynamic parameters such as bond length and bond dissociation energy. These results suggest that metallocenes might be privileged mechanophores through which highly inert coordination complexes can be made dynamic in a stimuli-responsive fashion, offering potential opportunities in dynamic metallo-supramolecular materials and in mechanochemical routes to reactive intermediates that are otherwise difficult to obtain.
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Affiliation(s)
- Ye Sha
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , USA .
| | - Yudi Zhang
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , USA .
| | - Enhua Xu
- Graduate School of System Informatics , Kobe University , Kobe 657-8501 , Japan
| | - C Wayne McAlister
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , USA .
| | - Tianyu Zhu
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , USA .
| | - Stephen L Craig
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , USA .
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , USA .
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38
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Synthesis and Mechanochemical Activity of Peptide-Based Cu(I) Bis( N-heterocyclic carbene) Complexes. Biomimetics (Basel) 2019; 4:biomimetics4010024. [PMID: 31105209 PMCID: PMC6477612 DOI: 10.3390/biomimetics4010024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 12/18/2022] Open
Abstract
With the class of shock-absorbing proteins, nature created some of the most robust materials combining both mechanical strength and elasticity. Their excellent ability to dissipate energy to prevent surrounding cells from damage is an interesting property that regularly is exploited for applications in biomimetic materials. Similar to biomaterials, where mechanical stimuli are transmitted into a (bio)chemical response, mechanophoric catalysts transform mechanical energy into a chemical reaction. Force transmission is realized commonly by polymeric handles directing the applied force to the mechanophoric bond, which in turn leads to stress-induced activation of the catalyst. Therefore, shock-absorbing proteins able to take up and store mechanical energy elastically for subsequent force transduction to the labile bond seem to be perfect candidates to fulfill this task. Here, we report on the synthesis of two different latent mechanophoric copper(I) bis(N-heterocyclic carbene) complexes bearing either two carboxyl groups or two amino groups which allow conjugation reactions with either the N- or the C-terminus of amino acids or peptides. The chosen catalysts can be activated, for instance, by applying external mechanical force via ultrasound, removing one N-heterocyclic carbene (NHC) ligand. Post-modification of the mechanophoric catalysts via peptide coupling (Gly, Val) and first reactions showed that the mechanoresponsive behavior was still present after the coupling. Subsequent polycondensation of both catalysts lead to a polyamide including the Cu(I) moiety. Mechanochemical activation by ultrasound showed conversions in the copper(I)-catalyzed alkyne-azide “click” reaction (CuAAC) up to 9.9% proving the potential application for the time and spatial controlled CuAAC.
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39
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Häse F, Fdez Galván I, Aspuru-Guzik A, Lindh R, Vacher M. How machine learning can assist the interpretation of ab initio molecular dynamics simulations and conceptual understanding of chemistry. Chem Sci 2019; 10:2298-2307. [PMID: 30881655 PMCID: PMC6385677 DOI: 10.1039/c8sc04516j] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 12/21/2018] [Indexed: 01/11/2023] Open
Abstract
Molecular dynamics simulations are often key to the understanding of the mechanism, rate and yield of chemical reactions. One current challenge is the in-depth analysis of the large amount of data produced by the simulations, in order to produce valuable insight and general trends. In the present study, we propose to employ recent machine learning analysis tools to extract relevant information from simulation data without a priori knowledge on chemical reactions. This is demonstrated by training machine learning models to predict directly a specific outcome quantity of ab initio molecular dynamics simulations - the timescale of the decomposition of 1,2-dioxetane. The machine learning models accurately reproduce the dissociation time of the compound. Keeping the aim of gaining physical insight, it is demonstrated that, in order to make accurate predictions, the models evidence empirical rules that are, today, part of the common chemical knowledge. This opens the way for conceptual breakthroughs in chemistry where machine analysis would provide a source of inspiration to humans.
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Affiliation(s)
- Florian Häse
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , USA
| | - Ignacio Fdez Galván
- Department of Chemistry - Ångström , The Theoretical Chemistry Programme , Uppsala University , Box 538 , 751 21 Uppsala , Sweden .
| | - Alán Aspuru-Guzik
- Department of Chemistry and Department of Computer Science , University of Toronto , Toronto , Ontario M5S 3H6 , Canada
- Vector Institute for Artificial Intelligence , Toronto , Ontario M5S 1M1 , Canada
- Canadian Institute for Advanced Research (CIFAR), Senior Fellow , Toronto , Ontario M5S 1M1 , Canada
| | - Roland Lindh
- Department of Chemistry - Ångström , The Theoretical Chemistry Programme , Uppsala University , Box 538 , 751 21 Uppsala , Sweden .
| | - Morgane Vacher
- Department of Chemistry - Ångström , The Theoretical Chemistry Programme , Uppsala University , Box 538 , 751 21 Uppsala , Sweden .
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40
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Ni X, Zhang X, Duan X, Zheng HL, Xue XS, Ding D. Near-Infrared Afterglow Luminescent Aggregation-Induced Emission Dots with Ultrahigh Tumor-to-Liver Signal Ratio for Promoted Image-Guided Cancer Surgery. NANO LETTERS 2019; 19:318-330. [PMID: 30556699 DOI: 10.1021/acs.nanolett.8b03936] [Citation(s) in RCA: 276] [Impact Index Per Article: 55.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Afterglow imaging through the collection of persistent luminescence after the stopping of light excitation holds enormous promise for advanced biomedical uses. However, efficient near-infrared (NIR)-emitting afterglow luminescent materials and probes (particularly the organic and polymeric ones) are still very limited, and their in-depth biomedical applications such as precise image-guided cancer surgery are rarely reported. Here, we design and synthesize a NIR afterglow luminescent nanoparticle with aggregation-induced emission (AIE) characteristics (named AGL AIE dots). It is demonstrated that the AGL AIE dots emit rather-high NIR afterglow luminescence persisting over 10 days after the stopping of a single excitation through a series of processes occurring in the AIE dots, including singlet oxygen production by AIE luminogens (AIEgens), Schaap's dioxetane formation, chemiexcitation by dioxetane decomposition, and energy transfer to NIR-emitting AIEgens. The animal studies reveal that the AGL AIE dots have the innate property of fast afterglow signal quenching in normal tissues, including the liver, spleen, and kidney. After the intravenous injection of AGL AIE dots into peritoneal carcinomatosis bearing mice, the tumor-to-liver ratio of afterglow imaging is nearly 100-fold larger than that for fluorescence imaging. The ultrahigh tumor-to-liver signal ratio, together with low afterglow background noise, enables AGL AIE dots to give excellent performance in precise image-guided cancer surgery.
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41
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Lin Y, Chang CC, Craig SL. Mechanical generation of isocyanate by mechanically induced retro [2 + 2] cycloaddition of a 1,2-diazetidinone mechanophore. Org Chem Front 2019. [DOI: 10.1039/c9qo00262f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mechanical activation of a 1,2-diazetidinone mechanophore via ultrasonic sonication leads to the formation of isocyanate and imine products.
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Affiliation(s)
- Yangju Lin
- Department of Chemistry
- Duke University
- Durham
- USA
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42
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Lin Y, Barbee MH, Chang CC, Craig SL. Regiochemical Effects on Mechanophore Activation in Bulk Materials. J Am Chem Soc 2018; 140:15969-15975. [DOI: 10.1021/jacs.8b10376] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yangju Lin
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Meredith H. Barbee
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Chia-Chih Chang
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Stephen L. Craig
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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43
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44
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Sakai N, Matile S. Conjugated Polyimine Dynamers as Phase-Sensitive Membrane Probes. J Am Chem Soc 2018; 140:11438-11443. [PMID: 30156837 DOI: 10.1021/jacs.8b06668] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this report, dynamic polyimines are introduced as multifunctional sensors of lipid bilayer phases. Under mildly acidic conditions, self-condensation of push-pull amino formyl fluorenes into polyimines occurs in solid- or liquid-ordered phases but not in liquid-disordered phases of vesicular membranes. The obtained conjugated polymers are characterized by a progressive red shift of the absorption maxima, the appearance of exciton-coupled circular dichroism (CD) bands, and fluorescence quenching. These characteristics allow multiple modes of detection of membrane phases, which are known to change under membrane tension.
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Affiliation(s)
- Naomi Sakai
- Department of Organic Chemistry , University of Geneva , CH-1211 Geneva 4, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry , University of Geneva , CH-1211 Geneva 4, Switzerland
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45
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Michael P, Biewend M, Binder WH. Mechanochemical Activation of Fluorogenic CuAAC "Click" Reactions for Stress-Sensing Applications. Macromol Rapid Commun 2018; 39:e1800376. [PMID: 30101432 DOI: 10.1002/marc.201800376] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/20/2018] [Indexed: 12/29/2022]
Abstract
Strategies for visualizing stress within polymeric materials are of growing interest during the past decade. In this paper, stress-sensing materials, triggered by a mechanoresponsive catalytic system based on latent copper(I)bis(N-heterocyclic carbene) mechanophores, are reported, which can be activated by compression force to trigger a fluorogenic copper(I)-catalyzed alkyne/azide "click" cycloaddition reaction, activating a fluorescent dye useful for stress-sensing applications in bulk polymeric materials. The focus is placed on the polymeric architecture, which is responsible for an efficient stress transmission, revealing the greatest activation for network-based mechanocatalysts, observing "click" conversions up to 44%, while chain-extended and linear mechanocatalysts activate either in a less efficient manner or are not completely latent in the initial state. The developed catalysts enable "irreversible" mechanochromic systems for stress-sensing devices.
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Affiliation(s)
- Philipp Michael
- Macromolecular Chemistry, Division of Technical and Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics, and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle, D-06120, Germany
| | - Michel Biewend
- Macromolecular Chemistry, Division of Technical and Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics, and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle, D-06120, Germany
| | - Wolfgang H Binder
- Macromolecular Chemistry, Division of Technical and Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics, and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle, D-06120, Germany
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46
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Di Giannantonio M, Ayer MA, Verde-Sesto E, Lattuada M, Weder C, Fromm KM. Getriggerte Freisetzung und Oxidation von Metallionen: Ferrocen als neuer Mechanophor in Polymeren. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803524] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Mathieu A. Ayer
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Schweiz
| | - Ester Verde-Sesto
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Schweiz
- Polymat; Joxe Mari Korta Center; University of the Basque Country UPV/EHU; Acda Tolosa 72 20018 Donostia-San Sebastian Spanien
| | - Marco Lattuada
- Department of Chemistry; University of Fribourg; Chemin du Musée 9 1700 Fribourg Schweiz
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Schweiz
| | - Christoph Weder
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Schweiz
| | - Katharina M. Fromm
- Department of Chemistry; University of Fribourg; Chemin du Musée 9 1700 Fribourg Schweiz
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47
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Di Giannantonio M, Ayer MA, Verde-Sesto E, Lattuada M, Weder C, Fromm KM. Triggered Metal Ion Release and Oxidation: Ferrocene as a Mechanophore in Polymers. Angew Chem Int Ed Engl 2018; 57:11445-11450. [DOI: 10.1002/anie.201803524] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/12/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Michela Di Giannantonio
- Department of Chemistry; University of Fribourg; Chemin du Musée 9 1700 Fribourg Switzerland
| | - Mathieu A. Ayer
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Switzerland
| | - Ester Verde-Sesto
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Switzerland
- Polymat; Joxe Mari Korta Center; University of the Basque Country UPV/EHU; Acda Tolosa 72 20018 Donostia-San Sebastian Spain
| | - Marco Lattuada
- Department of Chemistry; University of Fribourg; Chemin du Musée 9 1700 Fribourg Switzerland
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute; University of Fribourg; Chemin des Verdiers 4 1700 Fribourg Switzerland
| | - Katharina M. Fromm
- Department of Chemistry; University of Fribourg; Chemin du Musée 9 1700 Fribourg Switzerland
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48
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Bogris A, Wang J, Anyfantakis M, Loppinet B, Craig SL, Butt HJ, Fytas G. Solvent-Dependent Light-Induced Structures in Gem-Dichlorocyclopropanated Polybutadiene Solutions. J Phys Chem B 2018; 122:6995-7001. [PMID: 29890076 PMCID: PMC6122843 DOI: 10.1021/acs.jpcb.8b02463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The
formation of permanent structures upon mild red laser illumination
in transparent polydiene solutions is examined in the case of gem-dichlorocyclopropanated
polybutadiene (gDCC-PB) polymers bearing 15% functional
units of the dichlorocyclopropane groups. The response was found to
be distinct from the precursor PB. Whereas fiber-like patterns were
clearly observed in both precursor and gDCC-PB solutions
in cyclohexane, these were absent in the case of gDCC-PB/chloroform but were present in the precursor PB/chloroform
solutions. The involved mechanical stresses were not sufficient for
the gDCC activation to be detected by NMR spectroscopy.
Remarkably, addition of even 10 wt % gDCC-PB into
the latter solution sufficed to suppress the light-induced patterning.
The importance of the chemical environment on the response to light
irradiation was further checked and confirmed by use of other PB copolymers.
Different diameter patterns and kinetics were observed. The strong
solvent and comonomer mediated effect was reflected neither in solvency
nor in optical polarizability differences of the polymers solvent
couples.
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Affiliation(s)
- A Bogris
- Institute of Electronic Structure and Laser , Foundation for Research and Technology - Hellas , 70013 Heraklion , Crete , Greece.,Department of Materials Science and Technology , University of Crete , 70013 Heraklion , Crete , Greece
| | - J Wang
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - M Anyfantakis
- Physics & Materials Science Research Unit , University of Luxembourg , 162a Avenue de la Faiencerie , Luxembourg L-1511 , Luxembourg
| | - B Loppinet
- Institute of Electronic Structure and Laser , Foundation for Research and Technology - Hellas , 70013 Heraklion , Crete , Greece
| | - S L Craig
- Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
| | - H-J Butt
- Max-Planck Institute for Polymer Research , 55128 Mainz , Germany
| | - G Fytas
- Institute of Electronic Structure and Laser , Foundation for Research and Technology - Hellas , 70013 Heraklion , Crete , Greece.,Max-Planck Institute for Polymer Research , 55128 Mainz , Germany
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49
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Vacher M, Fdez Galván I, Ding BW, Schramm S, Berraud-Pache R, Naumov P, Ferré N, Liu YJ, Navizet I, Roca-Sanjuán D, Baader WJ, Lindh R. Chemi- and Bioluminescence of Cyclic Peroxides. Chem Rev 2018; 118:6927-6974. [PMID: 29493234 DOI: 10.1021/acs.chemrev.7b00649] [Citation(s) in RCA: 221] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bioluminescence is a phenomenon that has fascinated mankind for centuries. Today the phenomenon and its sibling, chemiluminescence, have impacted society with a number of useful applications in fields like analytical chemistry and medicine, just to mention two. In this review, a molecular-orbital perspective is adopted to explain the chemistry behind chemiexcitation in both chemi- and bioluminescence. First, the uncatalyzed thermal dissociation of 1,2-dioxetane is presented and analyzed to explain, for example, the preference for triplet excited product states and increased yield with larger nonreactive substituents. The catalyzed fragmentation reaction and related details are then exemplified with substituted 1,2-dioxetanone species. In particular, the preference for singlet excited product states in that case is explained. The review also examines the diversity of specific solutions both in Nature and in artificial systems and the difficulties in identifying the emitting species and unraveling the color modulation process. The related subject of excited-state chemistry without light absorption is finally discussed. The content of this review should be an inspiration to human design of new molecular systems expressing unique light-emitting properties. An appendix describing the state-of-the-art experimental and theoretical methods used to study the phenomena serves as a complement.
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Affiliation(s)
- Morgane Vacher
- Department of Chemistry-Ångström , Uppsala University , P.O. Box 538, SE-751 21 Uppsala , Sweden
| | - Ignacio Fdez Galván
- Department of Chemistry-Ångström , Uppsala University , P.O. Box 538, SE-751 21 Uppsala , Sweden
| | - Bo-Wen Ding
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Stefan Schramm
- New York University Abu Dhabi , P.O. Box 129188, Abu Dhabi , United Arab Emirates
| | - Romain Berraud-Pache
- Université Paris-Est , Laboratoire Modélisation et Simulation Multi Échelle, MSME, UMR 8208 CNRS, UPEM , 5 bd Descartes , 77454 Marne-la-Vallée , France
| | - Panče Naumov
- New York University Abu Dhabi , P.O. Box 129188, Abu Dhabi , United Arab Emirates
| | | | - Ya-Jun Liu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Isabelle Navizet
- Université Paris-Est , Laboratoire Modélisation et Simulation Multi Échelle, MSME, UMR 8208 CNRS, UPEM , 5 bd Descartes , 77454 Marne-la-Vallée , France
| | - Daniel Roca-Sanjuán
- Institut de Ciència Molecular , Universitat de València , P.O. Box 22085 , Valencia , Spain
| | - Wilhelm J Baader
- Departamento de Química Fundamental, Instituto de Química , Universidade de São Paulo , Av. Prof. Lineu Prestes, 748 , 05508-000 São Paulo , SP , Brazil
| | - Roland Lindh
- Department of Chemistry-Ångström , Uppsala University , P.O. Box 538, SE-751 21 Uppsala , Sweden.,Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , Massachusetts 02138 , United States
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50
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Polymer Mechanochemistry: A New Frontier for Physical Organic Chemistry. ADVANCES IN PHYSICAL ORGANIC CHEMISTRY 2018. [DOI: 10.1016/bs.apoc.2018.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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