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Hyaluronic acid methacrylate/laponite hydrogel loaded with BMP4 and maintaining its bioactivity for scar-free wound healing

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Regenerative Biomaterials 2023年第1期10卷 690-701页

作者： Likun Chang Yulong Xu Zhouying Wu Yichun Shao Dan Yu Wenyue Yang Liyuan Ye Xinyu Wang Binbin Li Yixia Yin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Scar-free wound healing is a challenging process due to the excessive deposition of extracellular matrix and *** overcome this issue,hydrogels with superior biochemical and mechanical properties have been used in combination with medicinal compounds as wound *** this study,a novel composite hydrogel consisting of double-crosslinked photocurable hyaluronic acid methacrylate(HAMA)and Laponite(Lap)loaded with bioactive bone morphogenetic protein 4(BMP4)was developed and thoroughly characterized for its properties such as degradation,morphology,porosity,compression,skin adhesion and load *** effect of the HAMA/Lap/BMP4 hydrogel was evaluated through both in vitro and in vivo *** the in vivo rabbit ear-scar model,the HAMA/Lap/BMP4 hydrogel dressing was found to reduce scar-related expressions ofα-SAM and decrease the ratio of collagenΙ/III in wounded ***,histopathological examination indicated that the HAMA/Lap/BMP4 hydrogel-treated groups exhibited enhanced wound repair and increased levels of collagen maintenance compared to other standard groups,ultimately leading to scarless wound ***,this sustained-release photocurable HAMA/Lap/BMP4 hydrogel offers a therapeutic approach for scar-free wound healing.

关键词： HAMA/Lap/BMP4 photocurable nanocomposite hydrogel sustained release scar-free wound healing

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Enhanced Photocatalytic Activity of Z-scheme Meso-BiVO_(4)-Au-CdS for Degradation of Rhodamine B

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Journal of Wuhan University of technology(materials Science) 2024年第4期39卷 869-876页

作者：张雁伟 WANG Yanze LI Junguo XIE Jingjing 王文宣 FU Zhengyi State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Longzhong Laboratory Xiangyang 441000China

We synthesized BiVO_(4)mesocrystals with ordered assembly structure,and studied the structural order and the relationship between the photodegradation of Rhodamine *** nanoparticles(NPs)were successfully loaded onto Meso-BiVO_(4)by light-assisted induction,and Cd nanoparticles were further selected to be deposited on Au nanoparticles to form Z-scheme photocatalyst Meso-BiVO_(4)-Au-CdS *** try and propose to analyze its ordered assembly structure by XRD for the first *** results show that Meso-BiVO_(4)is a mesocrystal with highly exposed(001)plane and directional assembly *** charge separation efficiency of all samples was studied by PL *** results show that the Z-scheme Meso-BiVO_(4)-Au-CdS can promote the charge separation and obtain the best carrier separation ***,it has the best photocatalytic activity in the experiment of photocatalytic degradation of rhodamine *** main active species in the degradation process were confirmed by free radical trapping experiment,and the degradation mechanism was put forward.

关键词： biomineralization photosynthesis mesocrystal photocatalysis TiO_(2) BiVO_(4)

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Residual Stress Distribution of Si_(3)N_(4)/SiC Gradient Material and the Effect of Residual Stress on Material Properties

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Journal of Wuhan University of technology(materials Science) 2023年第4期38卷 759-765页

作者：赵东升 JING Qiang SUN Jianwei 张金咏 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China

The Si_(3)N_(4)/SiC gradient material with a gradient composition structure was prepared by a hot pressing *** sinterability,distribution of residual stress and the effect of residual stress on mechanical properties of Si_(3)N_(4)/SiC gradient materials were *** research results show that,at 1750℃,Si_(3)N_(4)/SiC gradient materials with different ratios can achieve co-sintering,and the overall relative density of the sample reaches 98.5%.Interestingly,the flexural strength of Si_(3)N_(4)/SiC gradient material is related to its loading *** flexural strength of SiC as the loading surface is about 35%higher than that of Si_(3)N_(4)as the loading *** analysis of the residual stress of the material in the gradient structure shows that the gradient stress distribution between the two phases is a vital factor affecting the mechanical properties of the *** the increase of SiC content in the gradient direction,the fracture toughness of each layer of Si_(3)N_(4)/SiC gradient materials gradually *** surface hardness of the pure SiC side is lower than that reported in other literature.

关键词： Si_(3)N_(4) SiC gradient material residual stress mechanical properties

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Fabricating ion-conducting channel in SU-8 matrix for highperformance patternable polymer electrolytes

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Nano Research 2023年第1期16卷 496-502页

作者： Tianzhao Li Xuelei Pan Zhongzhuo Yang Fang Liu Kesong Yu Lin Xu Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Advances in electrochemical energy storage technologies drive the need for battery safety performance and miniaturization,which calls for the easily processable polymer electrolytes suitable for on-chip microbattery ***,the low ionic conductivity of polymer electrolytes and poor-patternable capabilities hinder their application in ***,we modified SU-8,as the matrix material,by poly(ethylene oxide)(PEO)with lithium salts to obtain a patternable lithium-ion polymer *** to the highly amorphous state and more Li-ion transport pathways through blending effect and the increase in number of epoxides,the ionic conductivity of achieved sample is increased by an order of magnitude to 2.9×10^(−4) S·cm^(−1) in comparison with the SU-8 sample at 50°*** modified SU-8 exhibits good thermal stability(>150°C),mechanical properties(elastic modulus of 1.52 GPa),as well as an electrochemical window of 4.3 ***-cell and microdevice were fabricated and tested to verify the possibility of the micro-sized on-chip *** of these results demonstrate a promising strategy for the integration of on-chip batteries with microelectronics.

关键词： polymer electrolytes patternable electrolytes on-chip battery lithium-ion battery

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Chloride ion battery:A new emerged electrochemical system for next-generation energy storage

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Journal of Energy Chemistry 2024年第1期88卷 154-168,I0004页

作者： Shulin Chen Lu Wu Yu Liu Peng Zhou Qinyou An Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070HubeiChina State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and NanotechnologyWuhan University of Science and TechnologyWuhan 430081HubeiChina

In the scope of developing new electrochemical concepts to build batteries with high energy density,chloride ion batteries(CIBs)have emerged as a candidate for the next generation of novel electrochemical energy storage technologies,which show the potential in matching or even surpassing the current lithium metal batteries in terms of energy density,dendrite-free safety,and elimination of the dependence on the strained lithium and cobalt ***,the development of CIBs is still at the initial stage with unsatisfactory performance and several challenges have hindered them from reaching *** this review,we examine the current advances of CIBs by considering the electrode material design to the electrolyte,thus outlining the new opportunities of aqueous CIBs especially combined with desalination,chloride redox battery,*** respect to the developing road of lithium ion and fluoride ion batteries,the possibility of using solid-state chloride ion conductors to replace liquid electrolytes is tentatively *** beyond,perspectives and clear suggestions are concluded by highlighting the major obstacles and by prescribing specific research topics to inspire more efforts for CIBs in large-scale energy storage applications.

关键词： Chloride ion battery Anion shuttling Conversion reaction Chloride redox

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Fabrication of Porous SiC Coatings on Quartz Substrates by Laser Chemical Vapor Deposition

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Journal of Wuhan University of technology(materials Science) 2025年第2期40卷 330-337页

作者： YANG Meijun CHEN Rui XU Qingfang GUO Bingjian LIU Kai TU Rong ZHANG Song State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

Laser etching and laser chemical vapor deposition(LCVD)techniques were proposed for the rapid preparation of high-purity,strongly bonded SiC porous micro-nano-coatings on quartz *** laser serves as an external driving force for the vertical growth of SiC whiskers,facilitating the formation of a porous nanostructure that resembles coral models found in the macroscopic biological *** porous nanostructures are beneficial for reducing thermal expansion mismatch and relieving residual *** is capable of eliminating the cracks on the surface of SiC coatings as well as enhancing the bonding of SiC coatings with quartz substrates to avoid coating detachment.

关键词： laser etching laser CVD quartz substrate SiC coating

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Photocatalytic hydrogen production toward carbon neutrality:tracking charge separation

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National Science Review 2023年第9期10卷 9-10页

作者： Bao-Lian Su Laboratory of Inorganic Materials Chemistry University of Namur State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Under the vision of 'carbon peaking and carbon neutrality',the global energy system is facing a deep *** a clean energy with the potential to achieve zero carbon emissions,hydrogen energy will undoubtedly play an important ***-energy-driven photo catalytic reactions can decompose water to produce hydrogen and reduce carbon dioxide to produce solar fuels.

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Ultrathin GaN Film Derived from Amorphous Ga_(2)O_(3) Film

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Journal of Wuhan University of technology(materials Science) 2024年第4期39卷 814-818页

作者：王鹏 ZHANG Binbin LIU Xiaofei ZHANG Xin TU Rong ZHANG Song 李宝文 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Silicate Materials for Architectures School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China

It remains a big challenge to synthesize two-dimensional(2D)GaN material for applications in power *** synthetic methods require complex equipment and processes and time ***,we reported a two-step route to prepare polycrystalline 2D GaN *** amorphous ultrathin Ga_(2)O_(3)film was first exfoliated from the surface of liquid *** a vapor phase reaction,2D Ga_(2)O_(3)film was then converted into 2D GaN film while maintaining the 2D *** and high-resolution transmission electron microscope(HRTEM)analysis implies the successful synthesis of wurtzite-type GaN ultrathin *** simple strategy proposed in this work will provide more opportunities for applications of GaN ultrathin film in many devices.

关键词： GaN Ga_(2)O_(3) liquid gallium

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Mitigated lattice distortion and oxygen loss of Li-rich layered cathode materials through anion/cation regulation by Ti^(4+)-substitution

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Chinese Chemical Letters 2024年第2期35卷 548-552页

作者： Kaicheng Zhang Yu Tian Xuanjin Chen Shan Hu Zelang Jian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China

Lithium-rich layered cathode material(LLM)can meet the requirement of power lithium-ion energy storage devices due to the great energy ***,the de/intercalation of Li+will cause the irreversible loss of lattice oxygen and trigger transition metal(TM)ions migrate to Li+vacancies,resulting in capacity *** we brought Ti4+in substitution of TM ions in Li_(1.2)Mn_(0.54)Ni_(0.13)Co_(0.13)O_(2),which could stabilize structure and expand the layer spacing of ***,optimized Ti-substitution can regulate the anions and cations of LLM,enhance the interaction with lattice oxygen,increase Ni^(3+) and Co^(3+),and improve Mn^(4+) coordination,improving reversibility of oxygen redox activation,maintaining the stable framework and facilitating the Li^(+) ***,we found 5%Ti-substitution sample delivered a high discharge capacity of 244.2 mAh/g at 50 mA/g,an improved cycling stability to 87.3%after 100 cycles and enhanced rate *** Ti-substitution gives a new pathway to achieve high reversible cycle retention for LLMs.

关键词： Lithium-rich layered cathode material Ti-substitution Anion/cation regulation Structural stability Cycling stability

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Ultrafast Laser Irradiation Induced Oxidation of Dopant-Free Spiro-OMeTAD for Improving the Perovskite Solar Cells Performance

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Energy & Environmental materials 2025年第2期8卷 288-294页

作者： Jiaqi Meng Xiangyu Chen Weihan Li Nianyao Chai Zhongle Zeng Yunfan Yue Fengyi Zhao Xuewen Wang Center of Femtosecond Laser Manufacturing for Advanced Materials and Devices State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology School of Materials Science and Engineering Wuhan University of Technology International School of Materials Science and Engineering Wuhan University of Technology National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu Laboratory

The exceptional photoelectric performance and high compatibility of perovskite materials render perovskite solar cells highly promising for extensive development,thus garnering significant *** perovskite solar cells,the hole transport layer plays a crucial *** the commonly employed organic small molecule hole transport material Spiro-OMeTAD,a certain period of oxidation treatment is required to achieve complete transport ***,this posttreatment oxidation processes typically rely on ambient oxidation,which poses challenges in terms of precise control and leads to degradation of the perovskite light absorption *** approach fails to meet the demands for high efficiency and stability in practical ***,the mechanism of ultrafast laser on Spiro-OMeTAD and the reaction process for laser-induced oxidation of it are ***2at Perovskite/Spiro-OMeTAD interface breaks down to produce I2upon ultrafast laser irradiation and I2promote the oxidation *** the laser irradiation oxidation processing,a higher stability of perovskite solar cells is *** work establishes a new approach toward oxidation treatment of Spiro-OMeTAD.

关键词： hole transport layer perovskite solar cells ultrafast laser irradiation undoped Spiro-OMeTAD

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