Article
Chemistry, Multidisciplinary
Alex E. Crolais, Neil D. Dolinski, Nicholas R. Boynton, Julia M. Radhakrishnan, Scott A. Snyder, Stuart J. Rowan
Summary: A new series of catalyst-free, room-temperature dynamic thia-Michael acceptors bearing an isoxazolone motif were developed and utilized to access both dynamic covalent networks and linear polymers. By leveraging the generation of aromaticity upon thiol addition and tuning the electronic-withdrawing/donating nature of the acceptor at two different sites, a wide range of equilibrium constants were obtained. Integration into a ditopic isoxazolone-based Michael acceptor allowed access to both bulk dynamic networks and linear polymers with tailored thermomechanical properties.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Multidisciplinary
Nadine Hannewald, Pia Winterwerber, Stefan Zechel, David Y. W. Ng, Martin D. Hager, Tanja Weil, Ulrich S. Schubert
Summary: The combination of DNA origami nanostructures and polymers offers a new way to access defined structures in the 100 nm range. DNA origami serves as a template for arranging polymer chains, creating hybrid materials that could be used for energy transfer, organic circuits, or the synthesis of nanopatterned structures.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Borui Zhang, Nethmi De Alwis Watuthanthrige, Shiwanka V. Wanasinghe, Saadyah Averick, Dominik Konkolewicz
Summary: Dynamic materials, or dynamers, have diverse applications in sustainable materials, advanced materials, and biomedical agents. Comprised of polymers with reversible bonds, the stability and dynamic properties of these materials are determined by the nature of the linker. Combining multiple dynamic linkers can introduce complementary functionalities and enhance material properties.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Zhuo-Qin Wang, Xin Wang, Ying-Wei Yang
Summary: The design and synthesis of supramolecular polymers based on pillararenes have advanced the fields of supramolecular chemistry and polymer science. This review summarizes recent progress in the design, synthesis, and applications of pillararene-based supramolecular polymers (PSPs) as adsorption and separation materials. The review discusses the performance evaluation, topology classification, and challenges in functional supramolecular polymeric adsorbents. The future perspectives of PSPs for separation-based materials science are also explored.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Minmin Li, Yuting Xiong, Guangyan Qing
Summary: Protein post-translational modifications (PTMs) play a crucial role in cellular processes and are associated with various human diseases. PTM proteomics is emerging as a breakthrough in precision medicine, particularly in the study of phosphorylation and glycosylation. However, challenges such as low abundance and structural complexity still exist in the analysis of these PTMs. This Account provides an overview of innovative chemical tools and techniques developed to address these challenges.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Analytical
Robin Dufossez, Sylvain Ursuegui, Stephanie Baudrey, Ketty Pernod, Safae Mouftakhir, Mustapha Oulad-Abdelghani, Michel Mosser, Guilhem Chaubet, Michael Ryckelynck, Alain Wagner
Summary: Enzyme-linked immunosorbent assay (ELISA) is an important method for detecting proteins in biological science. By utilizing droplet-based microfluidics, miniaturized, less-consuming, and more sensitive ELISA assays can be developed by encapsulating biological samples and antibody-functionalized particles. This study introduces a new droplet surface immunoassay format that uses the oil/water phase interface as a protein capture and detection surface, eliminating the need for particles. The resulting method, called droplet surface immunoassay by fluorescence relocation (D-SIRe), demonstrates high sensitivity and rapid detection capabilities.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Robin Dufossez, Sylvain Ursuegui, Stephanie Baudrey, Ketty Pernod, Safae Mouftakhir, Mustapha Oulad-Abdelghani, Michel Mosser, Guilhem Chaubet, Michael Ryckelynck, Alain Wagner
Summary: Enzyme-linked immunosorbent assay (ELISA) is a widely used method for protein detection in biological science. In this study, a novel droplet-based immunoassay format called D-SIRe was developed, which utilizes the oil/water interface as the capture and detection surface for proteins. This method is fast and sensitive, allowing the detection of analytes at the single bacteria level.
ANALYTICAL CHEMISTRY
(2023)
Article
Polymer Science
Libor Novak, Ladislav Fojtl, Marketa Kadleckova, Lukas Manas, Ilona Smolkova, Lenka Musilova, Antonin Minarik, Ales Mracek, Tomas Sedlacek, Petr Smolka
Summary: A combination of mechanical and chemical treatments were utilized to modify the surface textures of copper and duralumin inserts in order to enhance the adhesion at the metal-polymer interface. Critical factor found to be overcoming a certain surface roughness threshold with mechanical pretreatment to maximize the potential of the mechanical/chemical approach.
Review
Chemistry, Multidisciplinary
Dong Wook Kim, Minsik Kong, Unyong Jeong
Summary: Stretchable electronics have evolved over the past decade with the synthesis of new soft materials and new device architectures, requiring significant deformability while maintaining high device performance. Interface control in varying scales determines the device characteristics and level of stretchability, with current issues and future challenges needing to be addressed for further advancements.
Review
Chemistry, Multidisciplinary
Luwei Zhang, Ning Wang, Yuliang Li
Summary: This review summarizes recent research achievements on molecular structure modification, aggregation regulation, characteristic properties, and device applications of two-dimensional materials. The intrinsic correlation between preparation methods and characteristic properties is investigated, and the design strategies to fabricate functional 2D materials starting from precursor molecules are introduced in detail.
Article
Materials Science, Multidisciplinary
Caroline Pereira, Jean-Sebastien Baumann, Patrick Masson, Genevieve Pourroy, Adele Carrado, Veronique Migonney, Celine Falentin-Daudre
Summary: The article discusses a new method of incorporating polymers onto titanium for biomedical prostheses, including sandwich structures and controlled grafting strategies. Additionally, a method for selectively grafting different bioactive polymers is developed.
Article
Polymer Science
Achraf Belkhiri, Nick Virgilio, Valerie Nassiet, Helene Welemane, France Chabert, Olivier De Almeida
Summary: This study aims to control the hydroxyl groups and surface chemistry of glass particles in PA6/glass composites to facilitate polymerization and crystallization. The results suggest that a careful balance is required to maintain fast kinetics, and a high hydroxyl concentration can lead to a slowdown or inhibition of the polymerization reaction.
Article
Construction & Building Technology
Xiaoqing Wang, Biao Ma, Wenbin Su, Junwei Tao, Heting Shi, Wei Si
Summary: Currently, cold patching materials (CPMs) have become a preferred choice for pothole repair on asphalt pavements in cold and wet weather. However, the survival time of conventional asphalt-based CPMs is not satisfactory, and they can cause water and air pollution. This study developed a pollution-free, economical, and high-performance CPM using a low viscosity, high toughness, and low temperature curing epoxy resin (ER) binder and unsaturated polyester. The results showed that the epoxy/unsaturated polyester mixture (EUPM) had excellent performance and repair effect, proving its feasibility and advantages in asphalt pavement maintenance.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Physics, Multidisciplinary
Rui-Qi Wang, Tian-Min Lei, Yue-Wen Fang
Summary: The rapid interest in low-dimensional materials is due to the need for nanoscale solid-state devices with unique properties. Complex transition metal oxide interface holds promise for electronic and spintronics devices. This study shows metal-insulator and ferromagnetic-antiferromagnetic transitions in monolayer MnO2 sandwiched into SrTiO3-based heterointerface systems through interface engineering. First-principles calculations show that metal-insulator and magnetic transitions in the monolayer MnO2 are independent of capping layer thickness. Monolayer MnO2 exhibits 100% spin-polarized two-dimensional electron gases and robust room temperature magnetism, making it a potential candidate for nanoscale spintronics applications.
Article
Biochemical Research Methods
Hui Chang, Deyu Li, Xiangyu Zhang, Runxin Xu, Junyan Zhang, Yongxin Song
Summary: By investigating the electrophoretic behavior of particles at a liquid-liquid interface, this study demonstrates that particles move in the opposite direction to the applied electric field at the interface. The velocity of the particles at the interface is influenced by the characteristics of the phases they reside in. Additionally, the experimental results suggest a possible size-based particle differentiation at the interface.
Article
Chemistry, Physical
Yiping Yin, Zhe Wang, Hua Zou
Summary: This study presents a novel method for preparing dimpled polymer-silica nanocomposite particles using interfacial swelling-based seeded polymerization. The optimized conditions allow for a relatively high percentage of dimpled particles to be achieved.
Article
Chemistry, Physical
Brenden D. Hoehn, Elizabeth A. Kellstedt, Marc A. Hillmyer
Summary: Porous materials with nanometer-scale pores have important applications as nanoporous membranes. In this study, ABA triblock copolymers were used as precursors to produce nanoporous polymeric membranes (NPMs) in thin film form by degrading the end blocks. Polycyclooctene (PCOE) NPMs with tunable pore sizes were successfully prepared using solvent casting technique. Oxygen plasma etching was employed to improve the surface porosity and hydrophilicity of the membranes. This study provides a straightforward method to produce tough NPMs with high porosity and hydrophilic surface properties.
Article
Chemistry, Physical
Vladislav S. Petrovskii, Stepan I. Zholudev, Igor I. Potemkin
Summary: This article investigates the behavior of linear and ring polypeptide chains in aqueous solution and explores the properties of the complexes formed by these chains with oppositely charged surfactants. The results demonstrate that the complexes of linear supercharged unfolded polypeptides and the corresponding surfactants exhibit impressive adhesive properties.
Article
Chemistry, Physical
Merve Cevik, Serkan Dikici
Summary: Cardiovascular diseases are a leading cause of death globally, and vascular grafts are a promising treatment option. This study focuses on tissue-engineered vascular grafts (TEVGs) using decellularized parsley stems as a potential biomaterial. The decellularized parsley stems showed suitable properties for TEVGs, providing a suitable environment for human endothelial cells to form a pseudo endothelium. This study showcases the potential of using parsley stems for TEVGs.
Article
Chemistry, Physical
Gustavo A. Vasquez-Montoya, Tadej Emersic, Noe Atzin, Antonio Tavera-Vazquez, Ali Mozaffari, Rui Zhang, Orlando Guzman, Alexey Snezhko, Paul F. Nealey, Juan J. de Pablo
Summary: The optical properties of liquid crystals are typically controlled by electric fields. In this study, we investigate the effects of microfluidic flows and acoustic fields on the molecular orientation and optical response of nematic liquid crystals. We identify several previously unknown structures and explain them through calculations and simulations. These findings hold promise for the development of new systems combining sound, flow, and confinement.
Article
Chemistry, Physical
Xinjun Wu, Xin Guan, Shushu Chen, Jiangpeng Jia, Chongyi Chen, Jiawei Zhang, Chuanzhuang Zhao
Summary: This research presents a novel shape memory hydrogel with a remodelable permanent shape and programmable cold-induced shape recovery behavior. The hydrogel is prepared using specific treatment methods to achieve shape fixation by heating and shape recovery by cooling. Additionally, deformable devices can be obtained by assembling hydrogel blocks with different concentrations.
Article
Chemistry, Physical
Rebecca Hengsbach, Gerhard Fink, Ulrich Simon
Summary: This study examines the properties of DNA functionalized pNipmam microgels and pure pNipmam microgels at different concentrations of sodium chloride and in PBS solutions using temperature dependent H-1-NMR measurements. The results show that DNA modification affects the volume phase transition temperature and the addition of salt and PBS further enhances this effect.
Article
Chemistry, Physical
Ningyi Li, Junhong Li, Lijingting Qing, Shicheng Ma, Yao Li, Baohui Li
Summary: This paper investigates the self-assembly behavior of colloids with competing interactions under spherical confinement and finds that different ordered structures can be formed under different sized spherical confinements. Moreover, more perforated structures are formed in smaller spheres.