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Glycopolymer Microarrays with Sub-Femtomolar Avidity for Glycan Binding Proteins Prepared by Grafted-To/Grafted-From Photopolymerizations

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Angewandte Chemie 2021年第37期133卷

作者： Daniel J. Valles Yerzhan S. Zholdassov Joanna Korpanty Samiha Uddin Yasir Naeem Prof. David R. Mootoo Prof. Nathan C. Gianneschi Prof. Adam B. Braunschweig The PhD program in Chemistry Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA Advanced Science Research Center at the Graduate Center The City University of New York 85 St. Nicholas Terrace New York NY 10031 USA Department of Chemistry Hunter College 695 Park Ave New York NY 10065 USA Department of Chemistry Northwestern University Evanston IL 60208 USA Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA Department of Biomedical Engineering Northwestern University Evanston IL 60208 USA The PhD program in Biochemistry Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA

We report a novel glycan array architecture that binds the mannose-specific glycan binding protein, concanavalin A (ConA), with sub-femtomolar avidity. A new radical photopolymerization developed specifically for this application combines the grafted-from thiol–(meth)acrylate polymerization with thiol–ene chemistry to graft glycans to the growing polymer brushes. The propagation of the brushes was studied by carrying out this grafted-to/grafted-from radical photopolymerization (GTGFRP) at >400 different conditions using hypersurface photolithography, a printing strategy that substantially accelerates reaction discovery and optimization on surfaces. The effect of brush height and the grafting density of mannosides on the binding of ConA to the brushes was studied systematically, and we found that multivalent and cooperative binding account for the unprecedented sensitivity of the GTGFRP brushes. This study further demonstrates the ease with which new chemistry can be tailored for an application as a result of the advantages of hypersurface photolithography.

关键词： glycopolymers lectins lithography microarrays thiol–ene

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Magnetic Nanocoils: Remote Control of Time-Regulated Stretching of Ligand-Presenting Nanocoils In Situ Regulates the Cyclic Adhesion and Differentiation of Stem Cells (Adv. Mater. 11/2021)

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Advanced materials 2021年第11期33卷

作者： Sunhong Min Min Jun Ko Hee Joon Jung Wonsik Kim Seong-Beom Han Yuri Kim Gunhyu Bae Sungkyu Lee Ramar Thangam Hyojun Choi Na Li Jeong Eun Shin Yoo Sang Jeon Hyeon Su Park Yu Jin Kim Uday Kumar Sukumar Jae-Jun Song Seung-Keun Park Seung-Ho Yu Yun Chan Kang Ki-Bum Lee Qiang Wei Dong-Hwee Kim Seung Min Han Ramasamy Paulmurugan Young Keun Kim Heemin Kang Department of Materials Science and Engineering Korea University Seoul 02841 Republic of Korea Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA International Institute for Nanotechnology Evanston IL USA NUANCE Center Northwestern University Evanston IL USA Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology Daejeon 34141 Republic of Korea KU-KIST Graduate School of Converging Science and Technology Korea University Seoul 02841 Republic of Korea Department of Otorhinolaryngology-Head and Neck Surgery Korea University College of Medicine Seoul 08308 Republic of Korea Department of Radiology Molecular Imaging Program at Stanford Stanford University School of Medicine Stanford University Palo Alto CA 94304 USA Department of Chemical Engineering Kongju National University Cheonan 31080 Republic of Korea Department of Chemical and Biological Engineering Korea University Seoul 02841 Republic of Korea Department of Chemistry and Chemical Biology Rutgers University Piscataway NJ 08854 USA College of Polymer Science and Engineering State Key Laboratory of Polymer Materials and Engineering Sichuan University Chengdu 610065 China Department of Radiology Canary Center at Stanford for Cancer Early Detection Stanford University School of Medicine Stanford University Palo Alto CA 94304 USA Department of Biomicrosystem Technology Korea University Seoul 02841 Republic of Korea

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Cover Feature: Design of a Metal–Organic Framework-Derived Co9S8/S Material for Achieving High Durability and High Performance of Lithium–Sulfur Batteries (ChemElectroChem 16/2021)

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ChemElectroChem 2021年第16期8卷

作者： Arif I. Inamdar Nahid Kaisar Saqib Kamal Tzuoo-Tsair Luo Prof. Dr. Shyankay Jou Prof. Dr. Chih-Wei Chu Prof. Dr. Ming-Hsi Chiang Prof. Dr. Kuang-Lieh Lu Institute of Chemistry Academia Sinica 115 Taipei Taiwan Department of Applied Chemistry National Yang Ming Chiao Tung University 300 Hsinchu Taiwan Sustainable Chemical Science and Technology Taiwan International Graduate Program Institute of Chemistry Academia Sinica 115 Taipei Taiwan Department of Materials Science and Engineering National Taiwan University of Science and Technology 106 Taipei Taiwan Research Center for Applied Sciences Academia Sinica 115 Taipei Taiwan Molecular Science and Technology Taiwan International Graduate Program Institute of Atomic and Molecular Science Academia Sinica 115 Taipei Taiwan Department of Chemistry Fu Jen Catholic University 242 New Taipei City Taiwan Department of Chemistry National Tsing Hua University 300 Hsinchu Taiwan Department of Medicinal and Applied Chemistry Kaohsiung Medical University 807 Kaohsiung Taiwan

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Benchmark problems for transcranial ultrasound simulation: Intercomparison of compressional wave models

arXiv

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arXiv 2022年

作者： Aubry, Jean-Francois Bates, Oscar Boehm, Christian Pauly, Kim Butts Christensen, Douglas Cueto, Carlos Gélat, Pierre Guasch, Lluis Jaros, Jiri Jing, Yun Jones, Rebecca Li, Ningrui Marty, Patrick Montanaro, Hazael Neufeld, Esra Pichardo, Samuel Pinton, Gianmarco Pulkkinen, Aki Stanziola, Antonio Thielscher, Axel Treeby, Bradley Van't Wout, Elwin Physics for Medicine Paris INSERM U1273 ESPCI Paris PSL University CNRS UMR 8063 France Department of Bioengineering Imperial College London Exhibition Road LondonSW7 2AZ United Kingdom Institute of Geophysics ETH Zürich Sonneggstrasse 5 Zürich8092 Switzerland Department of Radiology Stanford University StanfordCA United States Department of Biomedical Engineering Department of Electrical and Computer Engineering University of Utah United States Department of Surgical Biotechnology Division of Surgery and Interventional Science University College London LondonNW3 2PF United Kingdom Earth Science and Engineering Department Imperial College London London United Kingdom Centre of Excellence IT4Innovations Faculty of Information Technology Brno University of Technology Bozetechova 2 Brno612 00 Czech Republic Graduate Program in Acoustics The Pennsylvania State University University Park PA16802 United States Joint Department of Biomedical Engineering University of North Carolina at Chapel Hill North Carolina State University NC United States Department of Electrical Engineering Stanford University StanfordCA United States Zurich Switzerland Laboratory for Acoustics / Noise control Empa Swiss Federal Laboratories for Materials Science and Technology Dubendorf Switzerland Zurich Switzerland Radiology and Clinical Neurosciences Departments Cumming School of Medicine University of Calgary Canada Department of Applied Physics University of Eastern Finland Kuopio70211 Finland Department of Medical Physics and Biomedical Engineering University College London Gower Street LondonWC1E 6BT United Kingdom Technical University of Denmark Denmark Danish Research Center for Magnetic Resonance Copenhagen University Hospital Hvidovre Denmark Institute for Mathematical and Computational Engineering School of Engineering and Faculty of Mathematics Pontificia Universidad Catolica de Chile Santiago Chile

Computational models of acoustic wave propagation are frequently used in transcranial ultrasound therapy, for example, to calculate the intracranial pressure field or to calculate phase delays to correct for skull distortions. To allow intercomparison between the different modeling tools and techniques used by the community, an international working group was convened to formulate a set of numerical benchmarks. Here, these benchmarks are presented, along with intercomparison results. Nine different benchmarks of increasing geometric complexity are defined. These include a single-layer planar bone immersed in water, a multi-layer bone, and a whole skull. Two transducer configurations are considered (a focused bowl and a plane piston), giving a total of 18 permutations of the benchmarks. Eleven different modeling tools are used to compute the benchmark results. The models span a wide range of numerical techniques, including the finite-difference time-domain method, angular-spectrum method, pseudospectral method, boundary-element method, and spectral-element method. Good agreement is found between the models, particularly for the position, size, and magnitude of the acoustic focus within the skull. When comparing results for each model with every other model in a cross comparison, the median values for each benchmark for the difference in focal pressure and position are less than 10% and 1 mm, respectively. The benchmark definitions, model results, and intercomparison codes are freely available to facilitate further comparisons. Copyright © 2022, The Authors. All rights reserved.

关键词： Bone

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Reversible Handedness Inversion and Circularly Polarized Light Reflection Tuning in Self-Organized Helical Superstructures Using Visible-Light-Driven Macrocyclic Chiral Switches

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Angewandte Chemie 2022年第8期135卷

作者： Dr. Hao Wang Yuqi Tang Dr. Hari Krishna Bisoyi Prof. Quan Li Advanced Materials and Liquid Crystal Institute and Materials Science Graduate Program Kent State University Kent OH 44242 USA Contribution: Formal analysis (lead) Investigation (lead) Writing - original draft (lead) Writing - review & editing (supporting) Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing 211189 China Contribution: Formal analysis (supporting) Writing - original draft (supporting) Writing - review & editing (supporting) Contribution: Conceptualization (lead) Formal analysis (supporting) Supervision (lead) Writing - original draft (supporting) Writing - review & editing (lead)

A series of macrocyclic azobenzene-based chiral photoswitches have been judiciously designed, synthesized, and characterized. In the molecular structures, binaphthyl is covalently linked to ortho -positions of azobenzene, and four different substituents are linked to 6,6′-positions of binaphthyl. The photoswitches show enhanced helical twisting power (HTP) when doping in commercially available achiral liquid crystals to form self-organized helical superstructures, i.e., cholesteric liquid crystals (CLCs). All the photoswitches exhibit reversible photoisomerization driven by visible light of different wavelengths in both organic solvent and liquid crystals. The photoswitches with shorter substituents enable handedness inversion of CLCs upon photoisomerization. These are the first examples of ortho -linked azobenzene-based photoswitches that enable handedness inversion in CLCs. The photoswitches with longer substituents display only HTP values decreasing while maintaining the same handedness.

关键词： Circularly Polarized Light Handedness Inversion Macrocyclic Photoswitch Visible Light

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Cover Picture: Addressing Environmental Challenges of Porphyrin Mixtures Obtained from Statistical Syntheses (Chemistry - Methods 3/2021)

Chemistry–Methods

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Chemistry–Methods 2021年第3期1卷

作者： Helen Hölzel Maximilian Muth Prof. Dr. Dominik Lungerich Prof. Dr. Norbert Jux Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-University Erlangen-Nuernberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany Center for Nanomedicine Institute for Basic Science (IBS) 50 Yonsei-ro Seodaemun-gu Seoul 03722 South Korea Graduate Program for Nano Biomedical Engineering (NanoBME) Advanced Science Institute Yonsei University 50 Yonsei-ro Seodaemun-gu Seoul 03722 South Korea

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Correction: Advanced anti-corrosion coatings prepared from α-zirconium phosphate/polyurethane nanocomposites

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RSC Advances 2017年第36期7卷 22540-22540页

作者： Tsao-Cheng Huang Guan-Hui Lai Chen-En Li Mei-Hui Tsai Peng-Yun Wang Yi-Hsiu Chung Meng-Hung Lin Department of Chemical and Materials Engineering National Chin-Yi University of Technology 41170 Taichung Taiwan Republic of China Ph. D. Program Graduate Institute of Precision Manufacturing National Chin-Yi University of Technology 41170 Taichung Taiwan Republic of China Department Chemical Engineering Tatung University 104 Taipei Taiwan Republic of China National Chung-Shan Institute of Science and Technology Aeronautical Systems Research Division 40722 Taichung Taiwan Republic of China

Correction for ‘Advanced anti-corrosion coatings prepared from α-zirconium phosphate/polyurethane nanocomposites’ by Tsao-Cheng Huang et al., RSC Adv., 2017, 7, 9908–9913.

Correction for ‘Advanced anti-corrosion coatings prepared from α-zirconium phosphate/polyurethane nanocomposites’ by Tsao-Cheng Huang et al., RSC Adv., 2017, 7, 9908–9913.

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Macromol. Rapid Commun. 13/2010

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Macromolecular Rapid Communications 2010年第13期31卷

作者： Mai Sanjoh Shigehiro Hiki Yan Lee Makoto Oba Kanjiro Miyata Takehiko Ishii Kazunori Kataoka Department of Bioengineering Graduate School of Engineering The University of Tokyo Japan Department of Materials Engineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan Core Research Program for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST) Tokyo Japan Department of Chemistry Seoul National University Sillim‐dong Gwanak‐gu Seoul 151‐742 Korea Department of Clinical Vascular Regeneration Graduate School of Medicine The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8655 Japan Center for Disease Biology and Integrative Medicine Graduate School of Medicine The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐0033 Japan Center for NanoBio Integration The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan

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Cover Feature: Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating materials (ChemSusChem 19/2021)

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ChemSusChem 2021年第19期14卷

作者： Prof. Hee Taek Kim Mi Hee Ryu Ye Jean Jung Sooyoung Lim Hye Min Song Prof. Jeyoung Park Prof. Sung Yeon Hwang Dr. Hoe-Suk Lee Prof. Young Joo Yeon Dr. Bong Hyun Sung Prof. Uwe T. Bornscheuer Prof. Si Jae Park Prof. Jeong Chan Joo Prof. Dongyeop X. Oh Department of Food Science and Technology Chungnam National University Daejeon 34134 (Republic of Korea Research Center for Bio-based Chemicals Korea Research Institute of Chemical Technology Daejeon 34114 & Ulsan 44429 (Republic of Korea Department of Chemical Engineering and Materials Science Graduate Program in System Health Science & Engineering Ewha Womans University Seoul 03760 (Republic of Korea Advanced Materials and Chemical Engineering University of Science and Technology (UST) Daejeon 34113 (Republic of Korea Department of Biochemical Engineering Gangneung-Wonju National University Gangneung-si Gangwon-do 25457 (Republic of Korea Synthetic Biology and Bioengineering Research Center Korea Research Institute of Bioscience and Biotechnology Daejeon 34141 (Republic of Korea Department of Biotechnology & Enzyme Catalysis Institute of Biochemistry University of Greifswald 17487 Greifswald Germany Department of Biotechnology The Catholic University of Korea Bucheon-si Gyeonggi-do 14662 (Republic of Korea

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Dark Excitons: Dark-Exciton-Mediated Fano Resonance from a Single Gold Nanostructure on Monolayer WS2at Room Temperature (Small 31/2019)

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Small 2019年第31期15卷

作者： Mingsong Wang Zilong Wu Alex Krasnok Tianyi Zhang Mingzu Liu He Liu Leonardo Scarabelli Jie Fang Luis M. Liz-Marzán Mauricio Terrones Andrea Alù Yuebing Zheng Department of Mechanical Engineering Texas Materials Institute The University of Texas at Austin Austin TX 78712 USA Photonics Initiative Advanced Science Research Center Physics Program Graduate Center Department of Electrical Engineering City College of the City University of New York New York NY 10031 USA Department of Materials Science and Engineering Department of Physics Department of Chemistry Center for 2-Dimensional and Layered Materials The Pennsylvania State University University Park PA 16802 USA Department of Chemistry and Biochemistry California NanoSystems Institute University of California Los Angeles Los Angeles CA 90095 USA Bionanoplasmonics Laboratory CIC biomaGUNE Paseo de Miramón 182 20014 Donostia-San Sebastián Spain Ikerbasque Basque Foundation for Science 48013 Bilbao Spain Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine CIBER-BBN 20014 Donostia-San Sebastián Spain

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