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Modularized viromimetic polymer nanoparticle vaccines(VPNVaxs) to elicit durable and effective humoral immune responses

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National Science Review 2024年第3期11卷 200-214页

作者： Zichao Huang Xinyu Zhuang Liping Liu Jiayu Zhao Sheng Ma Xinghui Si Zhenyi Zhu Fan Wu Ningyi Jin Mingyao Tian Wantong Song Xuesi Chen Key Laboratory of polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of Sciences School of Applied Chemistry and Engineering University of Science and Technology of China Changchun Veterinary Research Institute Chinese Academy of Agricultural Sciences Jilin Biomedical polymers Engineering Laboratory State Key Laboratory of polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences

Virus-like particle(VLP) vaccines had shown great potential during the COVID-19 pandemic, and was thought to be the next generation of antiviral vaccine technology due to viromimetic structures. However,the time-consuming and complicated processes in establishing a current recombinant-protein–based VLP vaccine has limited its quick launch to the out-bursting pandemic. To simplify and optimize VLP vaccine design, we herein report a kind of viromimetic polymer nanoparticle vaccine(VPNVax), with subunit receptor-binding domain(RBD) proteins conjugated to the surface of polyethylene glycol-b-polylactic acid(PEG-b-PLA) nanoparticles for vaccination against SARS-CoV-2. The preparation of VPNVax based on synthetic polymer particle and chemical post-conjugation makes it possible to rapidly replace the antigens and construct matched vaccines at the emergence of different viruses. Using this modular preparation system, we identified that VPNVax with surface protein coverage of 20%–25% had the best immunostimulatory activity, which could keep high levels of specific antibody titers over 5 months and induce virus neutralizing activity when combined with an aluminum adjuvant. Moreover, the polymer nano-vectors could be armed with more immune-adjuvant functions by loading immunostimulant agents or chemical chirality design. This VPNVax platform provides a novel kind of rapidly producing and efficient vaccine against different variants of SARS-CoV-2 as well as other viral pandemics.

关键词： vaccine polymer nanomaterials SARS-CoV-2

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polymer electrolytes for flexible zinc-air batteries:Recent progress and future directions

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Nano Research 2024年第7期17卷 6058-6079页

作者： Jing Wu Wen-Ya Wu Suxi Wang Dan Kai Enyi Ye Warintorn Thitsartarn Janet Beng Hoon Tan Jianwei Xu Qingyu Yan Qiang Zhu Xian Jun Loh Institute of Sustainability for Chemicals Energy and Environment(ISCE2)Agency for ScienceTechnology and Research(A*STAR)1 Pesek RoadJurong IslandSingapore 627833Singapore Institute of Materials Research and Engineering(IMRE) Agency for ScienceTechnology and Research(A*STAR)2 Fusionopolis WayInnovis#08-03Singapore 138634Singapore School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological University21 Nanyang LinkSingapore 637371Singapore Department of Material Science and Engineering National University of Singapore9 Engineering Drive 1#03-09 EASingapore 117575Singapore

This review article delves into the development of electrolytes for flexible zinc-air batteries(FZABs),a critical component driving the advancement of flexible *** started by surveying the current advancements in electrolyte technologies,including solid-state and gel-based types,and their contributions to enhance the flexibility,efficiency,and durability of ***,we explored the challenges in this domain,focusing on maintaining electrolyte stability under mechanical stress,ensuring compatibility with flexible substrates,optimizing ion conductivity,and under harsh environmental ***,the key issues regarding interface details between electrolyte and the electrodes are covered as *** then discussed the future of electrolyte development in FZABs,highlighting potential avenues such as materials development,sustainability,in-situ studies,and battery *** review offers an in-depth overview of the advancements,challenges,and potential breakthroughs in creating electrolytes for FZABs over the past five *** serves as a guide for both researchers and industry professionals in this dynamic area.

关键词： flexible zinc-air batteries electrolyte polymer hydrogel electrolyte-electrode interface

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A highly selective electrochemical impedimetric sensor for imidacloprid determination based on WO_(3)/MoS_(2)nanosheets/molecularly imprinted polymer composite

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Rare Metals 2024年第3期43卷 1309-1315页

作者： Long-Hua Ding Ya-Wen Wang Qiu-Wen Li Li-Li Zhang Ai-Zhu Wang Institute for Advanced Interdisciplinary Research School of Chemistry and Chemical EngineeringUniversity of JinanJinan250022China HCA Florida Healthcare Westside/Northwest Hospital Internal Medicine PlantationFL33324USA

In this study,an electrochemical impedimetric sensor was established for imidacloprid(IMI)detection based on WO_(3)/MoS_(2)and molecular imprinted polymer(MIP)*** layer was prepared on electrode surface by electropolymerization of o-phenylenediamine(o-PD)in the presence of IMI template,which ensured the specific rec-ognization toward IMI.

关键词： electrochemical polymer polymerization

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Construction of interfacial dynamic bonds for high performance lignin/polymer biocomposites

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Frontiers of Chemical Science and Engineering 2023年第10期17卷 1372-1388页

作者： Jianbin Mo Haixu Wang Mengzhen Yan Jianhua Huang Rui Li Danting Sun Junjie Lei Xueqing Qiu Weifeng Liu Guangdong Provincial Key Lab of Green Chemical Product Technology School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640China State Key Laboratory of Pulp and Paper Engineering South China University of TechnologyGuangzhou 510640China School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China

Lignin is the largest natural aromatic biopolymer,but usually treated as industrial biomass *** development of lignin/polymer biocomposites can promote the high value utilization of lignin and the greening of ***,the weak interfacial interaction between industrial lignin and polymer induces poor compatibility and serious agglomeration in polymer owing to the strong intermolecular force of *** such,it is extremely difficult to prepare high performance lignin/polymer ***,we proposed the strategy of in situ construction of interfacial dynamic bonds in lignin/polymer *** taking advantage of the abundant oxygen-containing polar groups of lignin,we inserted dynamic bonding connection such as hydrogen bonds and coordination bonds into the interphase between lignin and the polymer matrix to improve the interfacial ***,the natural amphiphilic structure characteristics of lignin were utilized to construct the hierarchical nanophase separation structure in lignin/polymer *** persistent problems of poor dispersity and interfacial compatibility of lignin in the polymer matrix were effectively *** lignin-modified polymer composites achieved simultaneously enhanced strength and *** concise review systematically summarized the recent research progress of our group toward building high-performance lignin/polymer biocomposites through the design of interfacial dynamic bonds(hydrogen bonds,coordination bonds,and dynamic covalent bonds)between lignin and different polymer systems(polar plastics,rubber,polyurethane,hydrogels,and other polymers).Finally,the future development direction,main challenges,and potential solutions of lignin application in polymers were presented.

关键词： lignin polymer interfacial dynamic bonds

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Investigation of role of cartilage surface polymer brush border in lubrication of biological joints

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Friction 2022年第1期10卷 110-127页

作者： JinJing LIAO David W.SMITH Saeed MIRAMINI Bruce S.GARDINER Lihai ZHANG Department of Infrastructure Engineering.The University of Melbourne.Victoria 3010 Australia Faculty of Engineering and Mathematical Sciences The University of Western AustraliaWA 6009Australia College of Science Health.Engineering and Education.Murdoch UniversityWA 6150Australia

Although experimental evidence has suggested that the polymer brush border(PBB)on the cartilage surface is important in regulating fluid permeability in the contact gap,the current theoretical understanding of joint lubrication is still *** address this research gap,a multiscale cartilage contact model that includes PBB,in particular its effect on the fluid permeability of the contact gap,is developed in this *** modeling is employed to estimate the permeability of the contact *** permeability is classified into two categories:For a gap size>1μm,the flow resistance is assumed to be dominated by the cartilage roughness;for gap sizepolymers extending beyond the collagen network of the articular *** gap sizes of less than 1μm,the gap permeability decreases exponentially with increasing aggrecan concentration,whereas the aggrecan concentration varies inversely with the gap ***,the gap permeability is employed in a macroscale cartilage contact model,in which both the contact gap space and articular cartilage are modeled as two interacting poroelastic *** fluid exchange between these two media is achieved by imposing pressure and normal flux continuity boundary *** model results suggest that PBB can substantially enhance cartilage lubrication by increasing the gap fluid load support(e.g.,by 26 times after a 20-min indentation compared with the test model without a PBB).Additionally,the fluid flow resistance of PBB sustains the cartilage interstitial fluid pressure for a relatively long period,and hence reduces the vertical deformation of the ***,it can be inferred that a reduction in the PBB thickness impairs cartilage lubrication ability.

关键词： assumed polymer hence

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Demonstration of a polymer-Based Single Step Waveguide by 3D Printing Digital Light Processing Technology for Isopropanol Alcohol-Concentration Sensor

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Photonic Sensors 2022年第1期12卷 10-22页

作者： Kankan SWARGIARY Romuald JOLIVOT Waleed Soliman MOHAMMED Center of Research in Optoelectronics Communication and Computational Systems(BU-CROCCS)School of EngineeringBangkok UniversityPathum Th am 12120Thailand

A polymer based horizontal single step waveguide fbr the sensing of alcohol is developed and *** waveguide is fabricated by 3-dimensional(3D)printing digital light processing(DLP)technology using monocure 3D rapid ultraviolet(UV)clear resin with a refractive index of n=*** fabricated waveguide is a one-piece tower shaped ridge *** is designed to achieve the maximum light confinement at the core by reducing the effective refractive index around the cladding *** the surface roughness generated from the 3D printing DLP technology,various waveguides with different gap sizes are *** is done fbr the different gap waveguides to achieve the minimum feature gap size utilizing the light re-coupling principle and polymer swelling *** effect occurs due to the polymer-alcohol interaction that results in the diffusion of alcohol molecules inside the core of the waveguide,thus changing the waveguide from the leaky type(without alcohol)to the guided type(with alcohol).Using this principle,the analysis of alcohol concentration performing as a larger increase in the transmitted light in tensity can be *** this work,the sensitivity of the system is also compared and analyzed fbr different waveguide gap sizes with different concentrations of isopropanol alcohol(IPA).A waveguide gap size of 300 jim gives the highest in crease in the transmitted optical power of 65%when tested with 10μL(500ppm)concentration of *** with all other gaps,it also displays faster response time(/=5seconds)fbr the optical power to change right after depositing IPA in the *** measured limit of detection(LOD)achieved fbr 300μm is 0.366 *** addition,the fabricated waveguide gap of 300μm successfully demonstrates the sen sing limit of IPA concentration below 400μpm which is considered as an exposure limit by"National Institute for Occupational Safety and Health".All the mechanical mount and the alignments are done by 3D printing fused d

关键词： polymer 3D printing digital light processing(DLP) isopropanol alcohol(IPA) swelling effect fused deposition method(FDM)

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polymer flooding and its effects on enhanced oil recovery special reference to Upper Assam Basin

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Petroleum Research 2023年第1期8卷 54-62页

作者： Kalpajit Hazarika Subrata Borgohain Gogoi Amit Kumar Presidency University BangaloreIndia Dibrugarh University AssamIndia Rajiv Gandhi Institute of Petroleum Technology JaisAmethiIndia

Chemical Enhance oil Recovery(CEOR)technology is getting more attention since energy crises are getting worse and *** application of polymer flooding depends on the evaluation of rheological and solution properties of injected slug at reservoir conditions,which is function of polymer concentration,salinity,temperature and shear *** acryl amide(PAM)is commonly used polymer in polymer flooding ***,comparative study with other polymers such as xanthan gum(XG)is required while selection of appropriate polymer for *** present study,the recovery efficiency of PAM and XG as a polymer has been evaluated for application as chemical EOR agent for tertiary phase polymer flooding in Upper Assam *** comparative study between PAM and XG has been done in terms of rheological *** flooding experiment of polymer flooding has also been tested to determine the recovery efficiency of the PAM and XG polymer *** results showed that these polymers exhibit favorable salt tolerance,temperature resistance,and recoverable viscosity after shearing,reasonable thickening behavior and improved viscosity enhancement properties due to presence of hydrophobic association in the polymer main *** flooding experiment of polymer flooding has also been tested to determine the recovery efficiency of the PAM and XG polymer *** show that macroscopic sweep efficiency is the dominant factor during *** an injection of hydrogel polymer to the reservoir is to increase a viscosity of fluid containing water so that the fluid is more difficult to flow than the oil,and as a result,the oil production *** thinning behavior was observed in case of PAM indicating predominance of the frontal advance *** PAM seems to be following both piston like movement and frontal advance theory it can be efficiently enhancing the macroscopic sweep efficiency as well as microscopic displacement *** overall

关键词： Rheology polymer Macroscopic Microscopic EOR

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Tailoring Practically Accessible polymer/Inorganic Composite Electrolytes for All-Solid-State Lithium Metal Batteries:A Review

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Nano-Micro Letters 2023年第3期15卷 266-297页

作者： Hongmei Liang Li Wang Aiping Wang Youzhi Song Yanzhou Wu Yang Yang Xiangming He Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084People’s Republic of China

Solid-state electrolytes(SSEs)are widely considered the essential components for upcoming rechargeable lithium-ion batteries owing to the potential for great safety and energy *** them,polymer solid-state electrolytes(PSEs)are competitive candidates for replacing commercial liquid electrolytes due to their flexibility,shape versatility and easy *** the rapid development of PSEs,their practical application still faces obstacles including poor ionic conductivity,narrow electrochemical stable window and inferior mechanical ***/inorganic composite electrolytes(PIEs)formed by adding ceramic fillers in PSEs merge the benefits of PSEs and inorganic solid-state electrolytes(ISEs),exhibiting appreciable comprehensive properties due to the abundant interfaces with unique *** PIEs are highly compatible with high-voltage cathode and lithium metal anode,which offer desirable access to obtaining lithium metal batteries with high energy *** review elucidates the current issues and recent advances in *** performance of PIEs was remarkably influenced by the characteristics of the fillers including type,content,morphology,arrangement and surface *** focus on the molecular interaction between different components in the composite environment for designing high-performance ***,the obstacles and opportunities for creating high-performance PIEs are *** review aims to provide some theoretical guidance and direction for the development of PIEs.

关键词： polymer Inorganic composite electrolytes All-solid-state lithium metal batteries Fillers Ionic conductivity High voltage

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Carrier Dynamics and Surface Reaction Boosted by polymer-based Single-atom Photocatalysts

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Chemical Research in Chinese Universities 2022年第5期38卷 1207-1218页

作者： TENG Zhenyuan YANG Hongbin ZHANG Qitao OHNO Teruhisa Department of Applied Chemistry Faculty of EngineeringKyushu Institute of TechnologyKitakyushu 804-8550Japan School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009P.R.China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060P.R.China

Carrier dynamics and surface reaction are two critical processes for determining the performance of photocatalytic *** designable polymer-based photocatalysts have shown promising protectives in energetic and environmental *** this prospective,we first distinguished the differences of physiochemical properties between polymer-based semiconductors and traditional inorganic ***,the effects of single-atom sites on the charge dynamics and reaction kinetics of polymer-based photocatalysts are further ***(excitation)-space(wavefunction)population analysis,which can provide relevant information to clarify the structure-excitation relationships after introducing the single atom sites was also *** the future,with the further development of artificial intelligence,the establishment of an energy function with a regression accuracy close to or reaching the level of density functional theory is highly desired to infer the energetic diagram of the photocatalytic systems at the excited ***,coordination structures,interaction with inorganic semiconductors,photocatalytic stability and solvent effects should also be carefully considered in the future studies of polymer-based photocatalyst.

关键词： Carrier dynamics Surface reaction polymer Single-atom catalyst Dielectric property

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A Spiral Graphene Framework Containing Highly Ordered Graphene Microtubes for polymer Composites with Superior Through-Plane Thermal Conductivity

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Chinese Journal of Chemistry 2022年第3期40卷 329-336页

作者： Jinrui Gong Xue Tan Qilong Yuan Zhiduo Liu Junfeng Ying Le Lv Qingwei Yan Wubo Chu Chen Xue Jinhong Yu Kazuhito Nishimura Nan Jiang Cheng-Te Lin Wen Dai Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and Engineering(NIMTE)Chinese Academy of SciencesNingboZhejiang 315201China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBejjing 100049China Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(MOE)Beijing Key Lab of Nonophotonics&Ultrafine Optoelectronic SystemsSchool of PhysicsBeijing Institute of TechnologyBeijing 100081China College of Materials Science and Engineering Hunan UniversityChangshaHunan 410082China Advanced Nano-processing Engineering Lob Mechanical Systems EngineeringKogakuin UniversityTokyo 192-0015Japan

As the power density of electronic devices increases,there has been an urgent demand to develop highly conductive polymer composites to address the accompanying thermal management *** to the ultra-high intrinsic thermal conductivity,graphene is considered a very promising filler to improve the thermal conductivity of ***,graphene-based polymer composites prepared by the conventional mixing method generally have limited thermal conductivity,even under high graphene loading,due to the failure to construct efficient heat transfer pathways in the polymer ***,a spiral graphene framework(SGF)containing continuous and highly ordered graphene microtubes was developed based on a modified CVD *** embedding into the epoxy(EP)matrix,the graphene microtubes can act as efficient heat pathways,endowing the SGF/EP composites with a high through-plane thermal conductivity of 1.35 W·m^(-1)·K^(-1) at an ultralow graphene loading of 0.86 wt%.This result gives a thermal conductivity enhancement per 1 wt%filler loading of 710%,significantly outperforming various graphene structures as *** addition,we demonstrated the practical application of the SGF/EP composite as a thermal interface material for efficient thermal man-agement of the light-emitting diode(LED).

关键词： Graphene Chemical vapor deposition polymer Thermal conductivity Thermal management material

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