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Highly Recyclable and Tough Elastic Vitrimers from a Defined Polydimethylsiloxane Network

Angewandte Chemie 2023年第47期135卷

作者： Dr. Jiancheng Luo Dr. Xiao Zhao Hao Ju Dr. Xiangjun Chen Dr. Sheng Zhao Dr. Zoriana Demchuk Dr. Bingrui Li Dr. Vera Bocharova Dr. Jan-Michael Y. Carrillo Dr. Jong K. Keum Prof. Sheng Xu Prof. Alexei P. Sokolov Dr. Jiayao Chen Prof. Peng-Fei Cao Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN-37830 USA State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Materials Science and Engineering Program University of California San Diego La Jolla CA-92093 USA Department of Chemistry University of Tennessee Knoxville TN-37996 USA The Bredesen Center for Interdisciplinary Research and Graduate Education University of Tennessee Knoxville TN-37996 USA Center for Materials Sciences Oak Ridge National Laboratory Oak Ridge TN-37830 USA Neutron Scattering Division Oak Ridge National Laboratory Oak Ridge TN-37830 USA

Despite intensive research on sustainable elastomers, achieving elastic vitrimers with significantly improved mechanical properties and recyclability remains a scientific challenge. Herein, inspired by the classical elasticity theory, we present a design principle for ultra-tough and highly recyclable elastic vitrimers with a defined network constructed by chemically crosslinking the pre-synthesized disulfide-containing polydimethylsiloxane (PDMS) chains with tetra-arm polyethylene glycol (PEG). The defined network is achieved by the reduced dangling short chains and the relatively uniform molecular weight of network strands. Such elastic vitrimers with the defined network, i.e., PDMS-disulfide-D, exhibit significantly improved mechanical performance than random analogous, previously reported PDMS vitrimers, and even commercial silicone-based thermosets. Moreover, unlike the vitrimers with random network that show obvious loss in mechanical properties after recycling, those with the defined network enable excellent thermal recyclability. The PDMS-disulfide-D also deliver comparable electrochemical signals if utilized as substrates for electromyography sensors after the recycling. The multiple relaxation processes are revealed via a unique physical approach. Multiple techniques are also applied to unravel the microscopic mechanism of the excellent mechanical performance and recyclability of such defined network.

关键词： Defined Network Polydimethylsiloxane Recyclable Polymer Tough Elastomer Vitrimers

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Acoustic Microflows: Dancing with the Cells: Acoustic Microflows Generated by Oscillating Cells (Small 9/2020)

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Small 2020年第9期16卷

作者： Alinaghi Salari Sila Appak-Baskoy Maya Ezzo Boris Hinz Michael C. Kolios Scott S. H. Tsai Institute for Biomedical Engineering Science and Technology (iBEST) Toronto ON M5B 1T8 Canada Biomedical Engineering Graduate Program Ryerson University Toronto ON M5B 2K3 Canada Department of Chemistry and Biology Ryerson University Toronto ON M5B 2K3 Canada Faculty of Dentistry University of Toronto Toronto ON M5G 1G6 Canada Faculty of Dentistry Institute of Biomaterials and Biomedical Engineering (IBBME) University of Toronto Toronto ON M5G 1G6 Canada Department of Physics Ryerson University Toronto ON M5B 2K3 Canada Department of Mechanical and Industrial Engineering Ryerson University Toronto ON M5B 2K3 Canada

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Demonstration of higher-order topological States in photonic kagome lattice with next-nearest-neighbour coupling

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AIP Conference Proceedings 2020年第1期2300卷

作者： D. Zhirihin M. Li M. Gorlach X. Ni D. Filonov A. Slobozhanyuk A. Alu A. B. Khanikaev 1Department of Electrical Engineering Grove School of Engineering 160 Covent Avenue City College of New York 10031 NY USA 2Department of Physics and Engineering ITMO University 49 Kronverksky Pr. 197101 St. Petersburg Russia 3Physics Program Graduate Center of the City University of New York 365 5th Avenue 10016 New York NY USA 4Center for Photonics and 2D Materials Moscow Institute of Physics and Technology Dolgoprudny 141700 Russia 5Photonics Initiative Advanced Science Research Center City University of New York 10031 New York NY USA

In this paper, we investigate topological states in a two-dimensional distorted Kagome lattice with next- nearest-neighbour (NNN) coupling. We show that introducing NNN coupling leads to the emergence of a new type of higher-order corner states in a non-trivial topological phase. Using near-field scanning technique, we verify our theoretical predictions in the microwave frequency range and demonstrate field profiles for both conventional and new type of corner states. The experimental results are in perfect agreement with numerical simulations of finite structure.

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Stimuli-responsive photonic actuators for integrated biomimetic and intelligent systems

Responsive Materials

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Responsive materials 2023年第1期1卷

作者： Jingjing Gao Yuqi Tang Daniele Martella Jinbao Guo Diederik S. Wiersma Quan Li Key Laboratory of Carbon Fibers and Functional Polymers Ministry of Education Beijing University of Chemical Technology Beijing China College of Materials Science and Engineering Beijing University of Chemical Technology Beijing China Contribution: Writing - original draft (lead) Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing China Contribution: Writing - original draft (supporting) European Laboratory for Non-Linear Spectroscopy Sesto Fiorentino Italy Istituto Nazionale di Ricerca Metrologica (INRiM) Turin Italy Contribution: Writing - original draft (supporting) Writing - review & editing (supporting) Contribution: Conceptualization (lead) Project administration (lead) Writing - review & editing (lead) Department of Physics and Astronomy University of Florence Sesto Fiorentino Italy Jinbao Guo Diederik S. Wiersma and Quan Li. Contribution: Writing - review & editing (lead) Materials Science Graduate Program Kent State University Kent Ohio USA Contribution: Conceptualization (equal) Project administration (equal) Resources (lead) Supervision (lead) Writing - review & editing (lead)

Photonic actuators, serving as an emerging kind of intelligent stimuli-responsive material, can exhibit the abilities to change their structural colors/fluorescence and shapes under specific external stimuli, which have demonstrated essential applications in the fields of intelligent soft robotics, sensors, bionics, information storage, anti-counterfeiting, and energy harvesting. In this review, we reported the state-of-the-art research progress of stimuli-responsive photonic actuators classified on the basis of the material type and focusing on the actuation mechanisms, design principles, and processing techniques. We also broadly summarized the relative applications of photonic actuators in bionics, intelligent robots, sensors, and so on. Finally, a vision for the challenges in the area and future promising directions of stimuli-responsive photonic actuators is presented.

关键词： actuator fluorescence liquid crystal elastomer photonic crystal stimuli-responsive material

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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 Antwerp, Belgium. 15-20 July 2017 Abstracts

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BMC NEUROscience 2017年第SUPPL 1期18卷 95-176页

作者： [Anonymous] Department of Neuroscience Yale University New Haven CT 06520 USA Department Physiology & Pharmacology SUNY Downstate Brooklyn NY 11203 USA NYU School of Engineering 6 MetroTech Center Brooklyn NY 11201 USA Departament de Matemàtica Aplicada Universitat Politècnica de Catalunya Barcelona 08028 Spain Institut de Neurobiologie de la Méditerrannée (INMED) INSERM UMR901 Aix-Marseille Univ Marseille France Center of Neural Science New York University New York NY USA Aix-Marseille Univ INSERM INS Inst Neurosci Syst Marseille France Laboratoire de Physique Théorique et Modélisation CNRS UMR 8089 Université de Cergy-Pontoise 95300 Cergy-Pontoise Cedex France Department of Mathematics and Computer Science ENSAT Abdelmalek Essaadi’s University Tangier Morocco Laboratory of Natural Computation Department of Information and Electrical Engineering and Applied Mathematics University of Salerno 84084 Fisciano SA Italy Department of Medicine University of Salerno 84083 Lancusi SA Italy Dipartimento di Fisica Università degli Studi Aldo Moro Bari and INFN Sezione Di Bari Italy Data Analysis Department Ghent University Ghent Belgium Coma Science Group University of Liège Liège Belgium Cruces Hospital and Ikerbasque Research Center Bilbao Spain BIOtech Department of Industrial Engineering University of Trento and IRCS-PAT FBK 38010 Trento Italy Department of Data Analysis Ghent University Ghent 9000 Belgium The Wellcome Trust Centre for Neuroimaging University College London London WC1N 3BG UK Department of Electronic Engineering NED University of Engineering and Technology Karachi Pakistan Blue Brain Project École Polytechnique Fédérale de Lausanne Lausanne Switzerland Departement of Mathematics Swansea University Swansea Wales UK Laboratory for Topology and Neuroscience at the Brain Mind Institute École polytechnique fédérale de Lausanne Lausanne Switzerland Institute of Mathematics University of Aberdeen Aberdeen Scotland UK Department of Integrativ

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Surface modification of yttria-stabilized tetragonal zirconia with different glass based liners

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Dental materials 2016年 32卷 e95-e96页

作者： D. Silva-Herzog Rivera D. Masuoka-Ito L.O. Sanchez-Vargas J.L. Menchaca-Arredondo A. Aragón-Piña B.I. Cerda-Cristerna Institutional Doctoral Program of Engineering and Materials Science Universidad Autónoma De San Luis Potosí México Mexico Dentistry Department Universidad Autónoma De Aguascalientes México Mexico Faculty of Physics and Mathematics Universidad Autónoma De Nuevo León México Mexico Research Center and Post-Graduate Studies Universidad Autónoma De San Luis Potosí México Mexico Faculty of Dentistry Río Blanco Universidad Veracruzana-Región Córdoba-Orizaba México Mexico

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Supramolecular dissipative self-assembly systems: Approaches and applications

Responsive Materials

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Responsive materials 2023年第2期1卷

作者： Xiao-Fang Hou Xiao Chen Jia-Hao Wei Yang Xu Xu-Man Chen Quan Li Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing China Contribution: Writing - original draft (lead) Writing - review & editing (equal) Contribution: Conceptualization (supporting) Writing - original draft (supporting) Writing - review & editing (supporting) Contribution: Writing - original draft (supporting) Writing - review & editing (supporting) Contribution: Conceptualization (lead) Resources (equal) Supervision (lead) Writing - original draft (equal) Writing - review & editing (equal) Materials Science Graduate Program Kent State University Kent OH USA Xu-Man Chen and Quan Li. Contribution: Conceptualization (lead) Resources (lead) Supervision (lead) Writing - original draft (supporting) Writing - review & editing (lead)

Dissipative self-assembly (DSA) system requires a continuous supply of fuels to maintain the far-from-equilibrium assembled state. Living organisms exist and operate far from the thermodynamic equilibrium by continuous consumption of energy taken from the surroundings, so how to realize the construction of the artificial DSA system has attracted much attention by researchers all over the world. Owing to dynamic controllable noncovalent interactions, artificial supramolecular DSA systems have achieved higher functions fueled by various types of energy, such as chemical fuels, light, electric energy, acoustic energy, and mechanical energy. Upon the input of external fuels, nonactive precursors can be activated to form building blocks at higher energy levels and then self-assemble into transient supramolecular structures. As the proceeding of deactivation reaction, the building blocks with higher energy level dissipate back to the initial precursors, resulting in the disassembly process, to complete a full cycle. In this review, we summarize the recent advances of artificial supramolecular DSA systems on its construction strategies and energy-fueled regulation approaches. The applications of supramolecular DSA systems in luminescence modulating, information encryption, self-regulating gels, drug delivery, and catalysis are also discussed. We hope that this review article will facilitate further understanding and development of DSA systems.

关键词： dissipative self-assembly dynamic system out-of-equilibrium system stimuli responsive material supramolecular self-assembly

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Correction: The structural, vibrational, and mechanical properties of jammed packings of deformable particles in three dimensions

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Soft matter 2022年第19期18卷 3815页

作者： Dong Wang John D Treado Arman Boromand Blake Norwick Michael P Murrell Mark D Shattuck Corey S O'Hern Department of Mechanical Engineering & Materials Science Yale University New Haven Connecticut 06520 USA. corey.ohern@yale.edu. Integrated Graduate Program in Physical and Engineering Biology Yale University New Haven Connecticut 06520 USA. Department of Physics Yale University New Haven Connecticut 06520 USA. Department of Biomedical Engineering Yale University New Haven Connecticut 06520 USA. Systems Biology Institute Yale University West Haven Connecticut 06516 USA. Benjamin Levich Institute and Physics Department The City College of New York New York New York 10031 USA. Department of Applied Physics Yale University New Haven Connecticut 06520 USA.

Correction for 'The structural, vibrational, and mechanical properties of jammed packings of deformable particles in three dimensions' by Dong Wang , , 2021, , 9901-9915, DOI: 10.1039/D1SM01228B.

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Bone Remodeling: Theranostic Bioabsorbable Bone Fixation Plate with Drug‐Layered Double Hydroxide Nanohybrids (Adv. Healthcare Mater. 21/2016)

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Advanced Healthcare materials 2016年第21期5卷

作者： Myung Hun Kim Woojune Hur Goeun Choi Hye Sook Min Tae Hyun Choi Young Bin Choy Jin‐Ho Choy Center for Intelligent Nano‐Bio Materials (CINBM) Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Republic of Korea Interdisciplinary Program in Bioengineering College of Engineering Seoul National University Seoul 08826 Republic of Korea Biomedical Research Institute Seoul National University Hospital Seoul 03080 Republic of Korea Department of Plastic and Reconstructive Surgery Institute of Human‐Environment Interface Biology College of Medicine Seoul National University Seoul 03080 Republic of Korea Department of Preventive Medicine Graduate School of Public Health Seoul National University Seoul 08826 Korea Institute of Medical and Biological Engineering Medical Research Center and Department of Biomedical Engineering College of Medicine Seoul National University Seoul 03080 Republic of Korea

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Enhancement of Donor–Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles†

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Angewandte Chemie 2011年第24期123卷

作者： Dong Hwan Wang Do Youb Kim Kyeong Woo Choi Jung Hwa Seo Sang Hyuk Im Jong Hyeok Park O Ok Park Alan J. Heeger Center for Polymers and Organic Solids University of California at Santa Barbara Santa Barbara CA 93106 (USA) Fax: (+1) 805‐893‐4755 Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology (BK 21 Graduate Program) 373‐1 Guseong‐dong Yuseong‐gu Daejeon 305‐701 (Republic of Korea) Fax: (+82) 42‐350‐3910 KRICT‐RPFL Global Research Laboratory Advanced Materials Division Korea Research Institute of Chemical Technology Daejeon (Republic of Korea) School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT) Sungkyunkwan University Suwon 440‐746 (Republic of Korea) Fax: (+82) 31‐290‐7272

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