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Regulating microstructure and composition by carbonizing in-situ grown metal-organic frameworks on cotton fabrics for boosting electromagnetic wave absorption

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Nano Research 2024年第8期17卷 7290-7300页

作者： Jie Jin Hongsen Long Hu Liu Yan Guo Tiantian Bai Ben Bin Xu Mohammed A.Amin Hua Qiu Mohamed H.Helal Chuntai Liu Changyu Shen Zeinhom M.El-Bahy Zhanhu Guo State Key Laboratory of Structural Analysis Optimization and CAE Software for Industrial EquipmentNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002China China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410000China School of Electronic Engineering North China University of Water Resources and Electric PowerZhengzhou 450046China Complex Conditions of High-end Tire Technology Innovation Center Shuguang Rubber Industry Research&Design Institute Co.LtdGuilin 541004China Integrated Composites Lab Department of Mechanical and Civil EngineeringNorthumbria UniversityNewcastle Upon TyneNE18STUK Department of Chemistry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Department of Chemistry Faculty of Arts and ScienceNorthern Border UniversityRafha 73213Saudi Arabia Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt

High-temperature carbonized metal-organic frameworks(MOFs)derivatives have demonstrated their superiority for promising electromagnetic wave(EMW)absorbers,but they still suffer from limited EMW absorption capacity and narrow *** the advantage of microstructure and chemical composition regulation for the design of EMW absorber,hierarchical heterostructured MoS_(2)/CoS_(2)-Co_(3)O_(4)@cabonized cotton fabric(CF)(MCC@CCF)is prepared by growing ZIF-67 MOFs onto CF surface,chemical etching,and *** from the dual loss mechanism of magnetic-dielectric multicomponent carbonized MOFs,chemical etching and carbonization process can effectively introduce abundant micro-gap structure that can result in better impedance matching and stronger absorption capacity via internal reflection,doped heteroatoms(Mo,N,S)to supply additional dipolar polarization loss,and numerous heterointerfaces among MoS_(2),CoS_(2),Co_(3)O_(4),and CCF that produce promoted conduction loss and interfacial polarization ***,a minimal reflection loss of−52.87 dB and a broadest effective absorption bandwidth of 6.88 GHz were achieved via tunning the sample thickness and filler loading,showing excellent EMW absorption *** research is of great value for guiding the research on MOFs derivatives based EMW absorbing materials.

关键词： metal-organic frameworks hierarchical structure chemical etching sulfurization electromagnetic wave absorption

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In situ interphase engineering for all-solid-state Li batteries: a case study on the LiNi0.5Mn1.5O4/Li0.33La0.55TiO3 composite cathode guided by ab initio calculations

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Journal of Materials Chemistry A 2024年第16期12卷 9438-9453页

作者： Lin, Che-An Ihrig, Martin Kung, Kuan-Chen Chen, Hsiang-Ching Finsterbusch, Martin Guillon, Olivier Lin, Shih-Kang Department of Materials Science and Engineering National Cheng Kung University Tainan70101 Taiwan Department of Chemical Engineering National Taiwan University of Science and Technology Taipei106 Taiwan Forschungszentrum Jülich GmbH Jülich52425 Germany Research Center National Cheng Kung University Tainan70101 Taiwan Program on Smart and Sustainable Manufacturing Academy of Innovative Semiconductor and Sustainable Manufacturing National Cheng Kung University Tainan70101 Taiwan Core Facility Center National Cheng Kung University Tainan70101 Taiwan

The sinterability and interfacial stability issues in the composite cathode have been the main bottlenecks of oxide-based all-solid-state Li battery development. The interfacial reaction between the electrode and electrolyte plays an important role in the sinterability and interfacial stability of a composite cathode. A suitable interfacial reaction can not only improve the sinterability by providing an additional driving force for chemical bond formation, but it can also stabilize the electrode/electrolyte interface by forming interfacial reaction products which remain stable during operation of the cell. In this work, a suitable dopant that can induce the formation of the desired interphase between the LiNi0.5Mn1.5O4 cathode and Li0.33La0.55TiO3 electrolyte was obtained through ab inito computational screening. Experimental verification was carried out by field-assisted sintering technology/spark plasma sintering (FAST/SPS) for obtaining mechanically stable composite cathode pellets and heat treatment for inducing the interfacial reaction. The dopant identified by computation was proven to induce the in situ formation of a stable protective layer. A successful method of simultaneously improving sinterability and interfacial stability in an oxide-based composite cathode is demonstrated in this work. © 2024 The Royal Society of Chemistry.

关键词： Spark plasma sintering

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An Improved Thermal Conductivity Measurement Scheme for Macroscopic Graphitic Films Using the Laser Flash Method

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Journal of Thermal science 2024年第4期33卷 1480-1490页

作者： ZHANG Peijuan MING Xin LIU Yingjun WANG Xuelong SHI Hang HAO Yuanyuan LU Jiahao LIU Zheng LAI Haiwen ZHANG Ying GAO Weiwei XU Zhen GAO Chao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials&Technologies of Zhejiang ProvinceZhejiang UniversityHangzhou310027China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan030032China Special Equipment Safety Supervision and Inspection Institute of Jiangsu Province National Graphene Products Quality Inspection and Testing Center(Jiangsu)Wuxi214174China Hangzhou Gaoxi Technol Co. LtdHangzhou311113China China Academy of Aerospace Aerodynamics Beijing100074China

Achieving efficient thermal management urges to exploit high-thermal-conductivity materials to satisfy the boosted demand of heat *** is critical to adopt standardized characterization protocols to evaluate the intrinsic thermal conductivity of thermal management ***,for the most representative laser flash method,the lack of standard measurement methodology and systematic description on the thermal diffusivity and influencing factors has led to significant deviations and confusion of the thermal conduction performance in the emerging thermal management ***,the measurement error factors of thermal diffusivity by the common laser flash analyzer(LFA)are *** high-thermal-conductivity graphitic film(GF)as a typical case,the key factors are analyzed to guide the measurement protocol of related carbon-based thermal management *** basic principle of the LFA measurement,actual pre-processing conditions,instrument parameters setting,and data analysis are elaborated for accurate ***,the graphene thick films and common isotropic materials are also extended to meet various thermal measurement *** on the existing practical problems,we propose a feasible test flow to achieve a unified and standardized thermal conductivity measurement,which is beneficial to the rapid development of carbon-based thermal management materials.

关键词： thermal management graphitic film laser flash method thermal conductivity thermal diffusivity

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A biomimetic nanoplatform for customized photothermal therapy of HNSCC evaluated on patient-derived xenograft models

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International Journal of Oral science 2023年第1期15卷 87-98页

作者： Qi Wu Lan Chen Xiaojuan Huang Jiayi Lin Jiamin Gao Guizhu Yang Yaping Wu Chong Wang Xindan Kang Yanli Yao Yujue Wang Mengzhu Xue Xin Luan Xin Chen Zhiyuan Zhang Shuyang Sun Department of Oral and Maxillofacial-Head&Neck Oncology Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of Medicine/College of StomatologyShanghai Jiao Tong University/National Center for Stomatology/National Clinical Research Center for Oral Diseases/Shanghai Key Laboratory of Stomatology/Shanghai Research Institute of StomatologyShanghaiChina Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology Institute of Interdisciplinary Integrative Medicine ResearchShanghai University of Traditional Chinese MedicineShanghaiChina School of Chemical Engineering and Technology Shaanxi Key Laboratory of Energy Chemical Process IntensificationInstitute of Polymer Science in Chemical EngineeringXi’an Jiao Tong UniversityXi’anChina

Cancer cell membrane(CCM)derived nanotechnology functionalizes nanoparticles(NPs)to recognize homologous cells,exhibiting translational potential in accurate tumor ***,these nanoplatforms are majorly generated from fixed cell lines and are typically evaluated in cell line-derived subcutaneous-xenografts(CDX),ignoring the tumor heterogeneity and differentiation from inter-and intra-individuals and microenvironments between heterotopic-and orthotopic-tumors,limiting the therapeutic efficiency of such ***,various biomimetic nanoplatforms(CCM-modified gold@Carbon,i.e.,Au@C-CCM)were fabricated by coating CCMs of head and neck squamous cell carcinoma(HNSCC)cell lines and patient-derived cells on the surface of Au@C *** generated Au@C-CCMs were evaluated on corresponding CDX,tongue orthotopic xenograft(TOX),immunecompetent primary and distant tumor models,and patient-derived xenograft(PDX)*** Au@C-CCM generates a photothermal conversion efficiency up to 44.2% for primary HNSCC therapy and induced immunotherapy to inhibit metastasis via photothermal therapy-induced immunogenic cell *** homologous CCM endowed the nanoplatforms with optimal targeting properties for the highest therapeutic efficiency,far above those with mismatched CCMs,resulting in distinct tumor ablation and tumor growth inhibition in all four *** work reinforces the feasibility of biomimetic NPs combining modular designed CMs and functional cores for customized treatment of HNSCC,can be further extended to other malignant tumors therapy.

关键词： xenograft patient custom

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Graphene Oxide and Moringa oleifera Seed Oil Incorporated into Gelatin-Based Films:A Novel Active Food Packaging Material

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Journal of Renewable Materials 2025年第2期13卷 311-327页

作者： María Fernanda Cardona Lunar Ramón Ordoñez Heidi Fonseca Florido Joaquín Hernández-Fernández Rodrigo Ortega-Toro Food Packaging and Shelf-Life Research Group(FP&SL) Food Engineering DepartmentUniversity of CartagenaCartagena de Indias130015Colombia Departamento de Ingeniería Química Universidad Nacional Autónoma de HondurasTegucigalpa11101Honduras Investigador por México-CONAHCYT Centro de Investigación en Química Aplicada(CIQA)Saltillo25294México Chemistry Program Department of Natural and Exact SciencesSan Pablo CampusUniversity of CartagenaCartagena130015Colombia Chemical Engineering Program School of EngineeringUniversidad Tecnológica de BolívarCartagena130001Colombia Department of Natural and Exact Science Universidad de la CostaBarranquilla080002Colombia

The extensive use of polymeric materials in single-use packaging has driven the need to develop biodegradable *** study investigates the incorporation of graphene oxide(GO)and Moringa oleifera seed oil(MOSO)into a gelatin matrix to create polymer films and evaluate their potential as active packaging *** properties of these films were evaluated using structural,thermal,mechanical,optical,and physicochemical methods to determine their suitability for food packaging *** results showed that GO and MOSO were homogeneously dispersed in the gelatin matrix,forming colloidal particles(around 5μm in diameter).The addition of GO increased opacity by approximately 20 times the base value while MOSO affected light transmittance without impacting *** properties were affected differently,GO acted as a crosslinking agent reducing elongation and increasing tensile strength at break,on the other hand MOSO acted as a plasticizer,making films more plastic increasing elongation a 30%.These effects counteracted each other,and similar behavior was recorded in differential scanning *** films exhibited an improved water vapor resistance,which is crucial for food *** findings indicate that the incorporation of GO and MOSO into a gelatin matrix may produce biodegradable polymer films with enhanced properties,suitable for active packaging in the food industry.

关键词： Biodegradable packaging graphene oxide Moringa oleifera seed oil mechanical properties thermal stability water vapor resistance food packaging applications

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Collagen-based biomaterials in organoid technology for reproductive medicine:composition, characteristics, and applications

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Collagen and Leather 2024年第4期6卷 13-38页

作者： Bo Feng Hao Yang Manman Zhu Jinlin Li Hsun-Ming Chang Peter C.K.Leung Junling Guo Yaoyao Zhang Department of Obstetrics and Gynecology Key Laboratory of Birth Defects and Related of Women and Children of Ministry of EducationWest China Second University HospitalSichuan UniversityFrontier Medical CenterTianfu Jincheng LaboratoryChengdu 610041SichuanChina West China School of Medicine West China Hospital of Sichuan UniversityChengdu 610041SichuanChina Sichuan University Department of Polymer Science:Sichuan University College of Polymer Science and Engineering Chengdu 610065SichuanChina Department of Obstetrics and Gynecology Reproductive Medicine CenterChina Medical University HospitalTaichungTaiwan Department of Obstetrics and Gynecology BC Children’s Hospital Research InstituteUniversity of British ColumbiaVancouverBC V5Z 4H4Canada BMI Center for Biomass Materials and Nanointerfaces College of Biomass Science and EngineeringSichuan UniversityChengdu 610065SichuanChina National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan UniversityChengdu 610065SichuanChina Department of Chemical and Biological Engineering Bioproducts InstituteUniversity of British ColumbiaVancouverBC V6T 1Z4Canada State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065SichuanChina

Collagen-based biomaterials(CBB) are highly esteemed by researchers in materials science and biomedicine due to their extensive applications across various biomedical *** recent years,owing to advancements in developmental biology techniq ues,this superior biomaterial has seen increasing utilization in 3D in vitro tissue ***-dimensional cell cultures,often referred to as organoids,have emerged in response to technological advancements in biomaterials and the growing need in the field of medical *** serve as important models for simulating normal physiological activities in vivo,addressing limitations in experimental material sources,and resolving ethical *** this review,we discuss the material characteristics of CBBs commonly used for organoid culture,integrating aspects such as Matrigel and decellularized ECM as culture *** also analyzed the development prospects and directions of various materials in the context of biology,clinical medicine,and partic ularly reproductive ***,despite the FDA approval and clinical research incorporating numerous CBBs,existing challenges in multiple studies indicate a significant unmet need in the development of key tissue models for both medical research and clinical *** summary,CBBs are swiftly broadening their applicability in the realms of organoid nature and medical research,serving as a versatile and high-performing material for 3D in vitro tissue culture.

关键词： Collagen Organoids Biomaterials Applications Component and characteristics

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Antibacterial Polystyrene with Intrinsic Antibacterial Properties by Incorporating Hyperthermostable Quaternary Ammonium Monomers

SSRN

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SSRN 2024年

作者： Yang, Yunchao Cai, Wenlin He, Maomao Ma, Zhiyuan Liu, Jie Sun, Wen Li, Yang Leng, Xuefei State Key Laboratory of Fine Chemicals Department of Polymer Science and Engineering Liaoning Key Laboratory of Polymer Science and Engineering School of Chemical Engineering Dalian University of Technology Dalian116024 China State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart Materials Oriented Chemical Engineering Dalian University of Technology Dalian116024 China

Polystyrene (PS) is widely used in products such as food packaging materials and medical devices, but it lacks inherent antibacterial properties. Traditionally, antibacterial PS has often been prepared by blending PS with antibacterial agents. However, inorganic agents such as silver ions tend to be released rapidly from the PS matrix, decreasing the long-term antibacterial efficacy and potentially causing cytotoxicity. Additionally, most organic antibacterial agents are easily decomposed at high temperatures. However, as a thermoplastic resin, PS typically requires high-temperature processing, leading to the degradation of organic antimicrobial agents during thermal processing, which decreases their antibacterial efficacy. Herein, PS resins (PS16Cs) with inherent antibacterial properties were prepared by incorporating a novel heat-resistant antibacterial monomer [16C] via simple free radical polymerization. Comprehensive testing demonstrated that the mechanical and thermal properties of the synthesized antibacterial PS resins meet the commercial PS standards. Notably, PS16Cs maintained durable and stable antibacterial activity even after prolonged immersion (in deionized water or phosphate-buffered saline) and repeated washing, making them a viable material for applications in products such as those for food packaging, electronic housings, and medical devices. This study demonstrates a method for endowing PS resins with inherent antibacterial properties, considerably expanding their application scope in the antibacterial field. © 2024, The Authors. All rights reserved.

关键词： Polystyrenes

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TiO2 Hole Transport Layer Incorporated in a Thermally Evaporated Sb2Se3 Photoelectrode Exhibiting Low Onset Potential for Photoelectrochemical Applications

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Energy and Fuels 2024年第17期38卷 16936-16948页

作者： Xavier, Thatheyus Peter Piraviperumal, Malar Kuo, Chih-Yu Govindasamy, Mani Thinfilm Photovoltaics Laboratory Department of Physics and Nanotechnology SRM Institute of Science and Technology Tamil Nadu Kattankulathur603203 India Department of Chemical Engineering & Biotechnology National Taipei University of Technology Taipei City10608 Taiwan Research Center for Intelligence Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan Department of Research and Innovation Saveetha School of Engineering SIMATS Chennai602105 India Taipei10608 Taiwan International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City243303 Taiwan

Developing cost-effective photoelectrodes with a low band gap in the NIR-visible regions remains a challenge to achieve effective hydrogen production. We report the details of superstrate-configured photocathodes, consisting of antimony selenide (Sb2Se3) light absorbing layers with titanium dioxide (TiO2) as a hole transport layer, exhibiting the capability for hydrogen evolution with broad range light absorption enabled by the low band gap value of ∼1.2 eV of Sb2Se3. Strong anisotropy is a significant characteristic property of Sb2Se3, allowing superior electrical transportation along the [hkl] crystallographic orientation, which is obtained via close space evaporation of presynthesized bulk material at a growth temperature of 250 °C, over the solution-processed TiO2 film on a fluorine-doped tin oxide (FTO) substrate. The superstrate-configured FTO/TiO2/Sb2Se3 photocathode exhibited a photocurrent density of 100 μA cm-2 at −0.3 V vs RHE in 0.5 M H2SO4 under 1 sun illumination. To further improve photocurrent density, Pt as a cocatalyst was deposited over Sb2Se3 that led to enhanced photocurrent to 3 mA cm-2 at −0.3 V vs RHE in 0.5 M H2SO4 under 1 sun illumination. Despite the relatively lower photocurrent observed, which resulted due to a large conduction band offset (ΔECB = 0.99 eV) of the TiO2/Sb2Se3 interface in a superstrate configuration, a significantly lower onset potential of −0.1 V vs RHE was observed. The results are encouraging due to the low band gap of Sb2Se3, photocorrosion stability, and straightforward fabrication, which is expected to assist for significant outcomes. © 2024 American chemical Society.

关键词： Titanium dioxide

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chemically Recyclable and Mechanically Robust Non-Isocyanate Polyurethane from Renewable Resource

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SSRN 2023年

作者： Miao, Pengcheng Leng, Xuefei Liu, Jie Xu, Xiaobo He, Maomao Li, Yang State Key Laboratory of Fine Chemicals Department of Polymer Science and Engineering Liaoning Key Laboratory of Polymer Science and Engineering School of Chemical Engineering Dalian University of Technology Dalian116024 China

The transition to sustainable routes boosts growth in academic research that centers on the replacement of isocyanate-based polyurethanes (PUs). Non-isocyanate polyurethanes (NIPUs) produced by aminolysis of cyclic carbonate are treated as a promising replacement for PUs. Herein, we report a novel cross-linked NIPU material prepared from resveratrols and CO2. The rigid conjugated structure of resveratrol affords NIPUs excellent mechanical properties, with the capacity to produce powerful materials possessing a tensile strength of 92 Mpa. In addition, bio-based cyclic carbonates can be regenerated by the alcoholysis of cross-linked NIPUs. The regenerated bio-based cyclic carbonates remain as polymeric monomers with the same reactive efficiency, and the re-prepared NIPUs exhibit the same structures and properties. This work investigates an eco-friendly synthetic pathway for producing high-performance and chemical recyclable cross-linked NIPU materials using renewable resources, which will enrich the synthetic strategy and recycling of NIPU-based chemistry. © 2023, The Authors. All rights reserved.

关键词： Polyurethanes

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Bio-Based Non-Isocyanate Polyurethane with Closed-Loop Recyclability and its Potential Application

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SSRN 2023年

作者： Miao, Pengcheng Liu, Jie Leng, Xuefei Li, Yang State Key Laboratory of Fine Chemicals Department of Polymer Science and Engineering Liaoning Key Laboratory of Polymer Science and Engineering School of Chemical Engineering Dalian University of Technology Dalian116024 China

Developing bio-based non-isocyanate polyurethanes (NIPUs) to replace petroleum-based conventional polyurethanes (PUs) plays an essential role in green production and relieving energy pressure. However, the synthesis of NIPUs using renewable resources, and recycling after reaching service time remain to be solved. Herein, a novel structural cross-linked NIPU network with closed-loop recyclability was prepared, which is derived from abundant lignin-derived and carbon dioxide (CO2) resources. The obtained NIPUs with dual dynamic covalent bonds exhibit relatively low activation energy (70.34 kJ/mol) and remarkable remolding efficiency (~100%). Importantly, spiro bi-acetal structures in polymer chains impart closed-loop recyclability to the obtained NIPUs. The results showed that they can be degraded at room temperature followed by regeneration with nearly full recovery of properties. Moreover, bio-based NIPUs are used as supporting materials to produce phase change materials (PCMs) for the first time, and the latent heat reaches 128.2 J/g. The material has favorable form stability and is leakage-proof owing to ZnII-carboxylates coordination interactions and stable cross-linked networks. This study demonstrates a method for the synthesis of closed-loop recyclable NIPUs from renewable resources, enriching synthetic diversity while providing an initial exploration of its potential as PCMs. © 2023, The Authors. All rights reserved.

关键词： Recycling

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