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Science China materials 2023年第6期66卷 2159-2168页

作者：高翔景文文王一诺徐小鹏张林骅陈志力文静高建宏彭强刘治田 Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials Hubei Key Laboratory of Plasma Chemistry and Advanced MaterialsSchool of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China School of Chemical Engineering Key Laboratory of Green Chemistry and Technology of Ministry of Education and State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China

贵金属催化剂被广泛用于合成高效的光伏材料.但是,昂贵的催化剂很难去除,而残留的催化剂有损于光伏性能.本工作不使用贵金属催化剂,通过简单的亲核取代反应合成了新型、高效的非富勒烯受体(NFAs).这一受体被命名为NAQ-3,获得了高达8.91... 详细信息

贵金属催化剂被广泛用于合成高效的光伏材料.但是,昂贵的催化剂很难去除,而残留的催化剂有损于光伏性能.本工作不使用贵金属催化剂,通过简单的亲核取代反应合成了新型、高效的非富勒烯受体(NFAs).这一受体被命名为NAQ-3,获得了高达8.91%的能量转换效率(PCE).据我们所知,这是通过简单亲核取代反应或无贵金属催化制备的NFAs所报道的最高PCE值.此外,我们合成了一个四臂的NF A作为该合成方法的扩展应用示例,其核心为联三嗪,命名为NAQ-4.通过比较NAQ-3和NAQ-4的吸收光谱和能级结构、分析基于NAQ-3和NAQ-4的有机太阳能电池的光伏性能、激子解离过程和电荷复合机制,研究了该类NFAs的结构-性能关系.本论文报道了一个通过简单的亲核取代反应合成高效NFAs的成功范例.

关键词：亲核取代反应能级结构贵金属催化剂有机太阳能电池三嗪能量转换效率光伏性能光伏材料

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Rapid angiogenic hydrogel nanofiber scaffold promotes random flap regeneration and modulates inflammation

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Wound Repair and Regeneration 2025年第2期33卷 e70028页

作者： Liang, Junyan Zou, Yang Ju, Haiyan Lv, Yonggang State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China School of Environmental Engineering Wuhan Textile University Wuhan China College of Chemistry and Chemical Engineering Wuhan Textile University Wuhan China

Random skin flaps are commonly used to cover thick skin wounds. However, necrosis frequently occurs when the flap's aspect ratio exceeds 2:1. Promoting angiogenesis and regulating inflammation are essential for treating ischemia–reperfusion injury in random flaps. In this study, calcium-doped silica nanoparticles loaded with deferoxamine (CD) were created through physical adsorption by rapidly mixing biodegradable calcium-doped silica nanoparticles (CS) with deferoxamine (DFO). A gelatin methacryloyl (GM) hydrogel nanofiber scaffold containing 1% (w/v) CD (GM/CD-1) was subsequently produced using electrospinning technology. The GM/CD-1 scaffold showed excellent biocompatibility and significantly promoted flap regeneration in mice, achieving a 96.17 ± 3.17% flap survival rate at 14 days. Additionally, it effectively stimulated hair follicle growth and exhibited an inflammatory-modulating effect. These features suggest that the GM/CD-1 scaffold could be valuable for clinical applications in flap regeneration and other tissue engineering fields. © 2025 The Wound Healing Society.

关键词： calcium-doped silica nanoparticle deferoxamine electrospinning random skin flap vascularization

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Necroptosis-elicited host immunity:GOx-loaded MoS_(2) nanocatalysts for self-amplified chemodynamic immunotherapy

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Nano Research 2022年第3期15卷 2244-2253页

作者： Wensheng Xie Jingsong Lu Zhenhu Guo Xiaoxiao Guo Yongjiu Chi Jieling Ye Junxin Zhang Wanling Xu Lingyun Zhao Yen Wei The Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing 100084China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Research Center of Magnetic and Electronic Materials College of Materials Science and EngineeringZhejiang University of TechnologyHangzhou 310014China State Key Laboratory of Powder Metallurgy Powder Metallurgy Research InstituteCentral South UniversityChangsha 410083China Department of Chemistry Tsinghua UniversityBeijing 100084China.

Nanoparticles induced potent antitumor immunotherapy plays a significant role for enhancing conventional therapeutic ***,revealing the pathway of how nanoagents themselves trigger the host immunity or how to maximize the immunotherapy efficacy still needs further ***,rose-like MoS2 nanoflowers modified with 2-deoxy-D-glucose(2-DG)and glucose oxidase(GOx)(MPGGFs)have been successfully fabricated via a one-pot hydrothermal reaction and following one-by-one surface modification as a multifunctional nanocatalyst for photothermal therapy enhanced self-amplified chemodynamic immunotherapy(PTT-co-CDT).By introducing GOx,the obtained MPGGFs exhibited self-amplified chemodynamic therapeutic efficacy under hypoxia tumor microenvironment(TME)because of the raised intracellular H2O2 level via enzyme-catalysis of ***,combined with the intrinsic excellent photothermal conversion efficiency of MoS2 nanoflowers,PTT-co-CDT performances by MPGGFs could effectively induce the necroptosis of tumor cells both in vitro and in *** the induced necroptosis via PTT-co-CDT by MPGGFs could directly trigger host immunity by activating the antigen-specific T-cells(CD4^(+) and CD8^(+)).Finally,the excellent in vivo safety of MPGGFs makes us believe that the successful construction of rose-like multifunctional nanocatalyst not only has great potentials for self-amplified chemodynamic immunotherapy,but also provides a paradigm for exploring necroptosis triggered host immunity for cancer treatment.

关键词： chemodynamic immunotherapy necroptosis nanocatalyst photothermal therapy self-amplified

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Wool Powder Assisted Colorimetric Sensing Yarn with High Sensitivity for Nh3 Monitoring

SSRN

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SSRN 2024年

作者： Zhu, Xixi Li, Yuying Tang, Wenyang Cui, Yongming Zhu, Kunkun Wang, Jinfeng Zeng, Beini Wang, Xungai Wuhan Textile University National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan430200 China The Hong Kong Polytechnic University School of Fashion and Textiles Research Center of Textiles for Future Fashion Hong Kong999077 Hong Kong State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan430200 China Wuhan Textile University China

Colorimetric sensors have applications in gas monitoring due to their simple and quick detection through visible color changes. However, it remains challenging to prepare colorimetric sensors with high sensitivity. Herein, this work fabricated a biomass-based colorimetric sensing yarn with high sensitivity using anthocyanins as the colorimetric dye and wool powder as an effective ammonia (NH3) adsorbent. The sensitivity of the prepared yarns was evaluated for detection limit and response time. Surprisingly, the addition of 3% wool powder greatly improved the sensitivity of the prepared yarns, with a reduction of both detection limit and responsive time from 100 ppm to 20 ppm, and 2 min to 20 s, respectively when exposed in 150 ppm NH3. The prepared yarns also showed good selectivity and reusability. An example of the practical use of colorimetric yarns was presented. This work provides a facile strategy for fabricating wearable devices for toxic gas monitoring with visual output. © 2024, The Authors. All rights reserved.

关键词： Yarn

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3D/4D additive-subtractive manufacturing of heterogeneous ceramics

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Journal of materials Science & technology 2024年第34期201卷 210-221页

作者： Guo Liu Xinya Lu Xiaofeng Zhang Yan Zhao Shenghui Yi Jingjun Xu Yuqi Zhan Jianan Yin Chengcheng Feng Zhifeng Zhou Peiyu Wang Zhou Chen Yunhu He Siyao Chen Pengchao Liu Jun Zuo Yu Dai Jian Wu Sida Liu Jian Lu Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstituteGreater Bay Joint DivisionShenyang National Laboratory for Materials ScienceShenzhen 518057China CityU-Shenzhen Futian Research Institute Shenzhen 518045China Hong Kong Branch of National Precious Metals Material Engineering Research Center City University of Hong KongHong Kong 999077China Department of Mechanical Engineering City University of Hong KongHong Kong 999077China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China National Engineering Laboratory for Modern Materials Surface Engineering Technology&The Key Lab of Guangdong for Modern Surface Engineering Technology Institute of New MaterialsGuangdong Academy of ScienceGuangzhou 510650China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China Faculty of Materials Science Shenzhen MSU-BIT UniversityShenzhen 518100China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Physics and Materials Nanchang UniversityNanchang 330031China

The manufacturing of heterogeneous high-temperature material components is challenging for use in practical ***-dimensional(3D)printing provides solutions to programmable constructing ceramic ***,the development of heterogeneous ceramics is limited by low flexibil-ity of heterogeneity,geometrical complexity,structural resolution,manufacturing efficiency,and mate-rial *** this study,we demonstrated flexible and rapid approaches for fabricating complicated and precise heterogeneous ceramics by shape-changing(4D)or shape-keeping(3D)additive-subtractive manufacturing(ASM)*** shape-changing strategy for heterogeneous ceramics was achieved by global ceramization of heterogeneous precursors,while the shape-keeping strategy for heterogeneous ceramics was achieved by local receramization of homogeneous *** element analysis(FEA)simulations of the influence of the thermal shrinkage dominant in the shape-changing strategy on the shape deformation of heterogeneous ceramics could be valuable predictions of the experimental *** 3D/4D ASM methods are generic for high-temperature materials and extendable to metallic and dia-mond materials.

关键词： 3D/4D printing Additive-subtractive manufacturing Heterogeneous ceramics Elastomer-derived ceramics Local receramization

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Cu@Cu2s Core-Shell Heterostructure Nanowires Electrocatalysts for Highly Efficient Sulfion Oxidation-Assisted Hydrogen Production

SSRN

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SSRN 2025年

作者： Zhou, Ming Zhang, Hongling Guo, Jiangna Yang, Mengqi Li, Xingyu Luo, Sen Liu, Guanyu Weng, Ruixue Xiao, Peng Cui, Xun Ma, Chaowei Dong, Xiaoyu Yang, Wenjing Zhang, Yunhuai College of Chemistry and Chemical Engineering Chongqing University Chongqing400031 China College of Physics Chongqing University Chongqing400031 China State Key Laboratory of New Textile Materials and Advanced Processing Wuhan Textile University Wuhan430200 China Xinjiang Key Laboratory of New Energy Materials and Green Chemical Engineering Xinjiang Institute of Engineering Xinjiang830023 China

Electrocatalytic sulfur oxidation-assisted hydrogen evolution is a promising method that can efficiently degrade sulfur ions in recovered waste water while cost-effectively producing hydrogen. However, it still remains a great challenge to develop efficient and stable electrocatalysts with a well-defined heterointerface and high sulfur tolerance. Herein, we present a facile and liquid-phase approach to synthesis Cu@Cu2S core-shell heterostructure nanowires derived from copper nanowires at room temperature for robust sulfide oxidation reaction (SOR)-assisted H2 generation. The Cu@Cu2S core-shell heterostructure nanowires exhibit superior SOR activity with an ultralow potential of 0.3 V (vs. RHE) at a current density of 100 mA cm−2. More importantly, the assembled hybrid system with Cu@Cu2S displays remarkable durability over 216 h with negligible activity decay. Combined with the experimental characterizations and theoretical calculations, it was demonstrated that Cu@Cu2S core-shell heterostructure nanowires possessed reduced transition energy barriers in the rate-determining *S3 to *S4 oxidation step and a higher integrated density of states, significantly optimizing adsorption/desorption energy of sulfur intermediates, thereby greatly boosting the catalytic activity and alleviating the sulfur poisoning. Our findings provide a new strategy to develop core-shell heterostructure electrocatalysts with substantially enhanced activity and stability. © 2025, The Authors. All rights reserved.

关键词： Nanowires

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S-Scheme Homojunction and Activate Site Engineering Over Tio2 for Highly Efficient Photocatalytic Nitrogen Fixation

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SSRN 2023年

作者： Wang, Yongchao Li, Zhen Zhu, Huiling Xu, Xiangran Zeng, Zhaowu Liu, Xiaoyi Wang, Huan Gong, Mingxing Liu, Xueqin Wang, Yang Faculty of Materials Science and Chemistry China University of Geosciences Wuhan430074 PR China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 PR China

The presence of efficient catalytic active sites and an ample supply of electrons are the two indispensable factors for achieving photocatalytic nitrogen fixation. Herein, the Fe-doped TiO2 S-scheme anatase/rutile homojunction (F-T-A/R) was synthesized as a brilliant photocatalyst for photocatalytic nitrogen fixation from N2 to NH3 under ambient atmosphere. The optimized F-T-A/R photocatalyst (A/R = 98:2, Fe-2wt%) exhibits an unprecedented NH3 generation rate of 358 μmol gcat-1 h-1 in water solvent and under simulated solar light irradiation. Experimental and theoretical studies reveal that the constructed S-scheme homojunction in F-A/R-TiO2 is conducive to fluent charge separation and adequate supply of electrons on rutile with higher nitrogen fixing activity, while the tuned local electronic structure of oxygen vacancy with Fe doping is engineered to strengthen active sites, synergistically enhancing the photocatalytic nitrogen fixation. © 2023, The Authors. All rights reserved.

关键词： Titanium dioxide

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Simultaneously healing cracks and strengthening additively manufactured Co_(34)Cr_(32)Ni_(27)Al_(4)Ti_(3) high-entropy alloy by utilizing Fe-based metallic glasses as a glue

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Journal of materials Science & technology 2024年第12期179卷 125-137页

作者： Hao Kang Kaikai Song Leilei Li Xiaoming Liu Yandong Jia Gang Wang Yaocen Wang Si Lan Xin Lin Lai-Chang Zhang Chongde Cao School of Physical Science and Technology Northwestern Polytechnical UniversityXian 710072China School of Mechanical Electrical&Information EngineeringShandong UniversityWeihai 264209China Institute of Materials Shanghai UniversityShanghai 200444China Herbert Gleiter Institute of Nanoscience School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXian 710072China Centre for Advanced Materials and Manufacturing School of EngineeringEdith Cowan University270 Joondalup DriveJoondalupPerthWestern Australia 6027Australia Research and Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518057China

Solidification cracking issues during additive manufacturing(AM)severely prevent the rapid development and broad application of this *** this work,a representative Co_(34)Cr_(32)Ni_(27)Al_(4)Ti_(3) high-entropy al-loy(HEA)susceptible to crack formation was fabricated by selective laser melting(SLM).As expected,many macroscopic cracks *** crack issues were successfully solved after introducing a certain amount of Fe-based metallic glass(MG)powder as a glue during *** effect of MG addition on the formation and distribution of defects in the SLM-processed HEA was quantitatively *** an increasing mass fraction of the MG,the dominant defects transformed from cracks to lack of fusion(LOF)defects and finally ***,the MG preferred to be segregated to the boundaries of the molten ***,the coarse columnar crystals gradually transformed into equiaxed crystals in the molten pool and fine-equiaxed crystals at the edge of the molten pool,inhibiting the initiation of cracks and providing extra grain boundary ***,multiple precipitates are formed at the boundaries of cellular structures,which contribute significantly to *** to the brit-tle SLM-processed Co_(34)Cr_(32)Ni_(27)Al_(4)Ti_(3) HEA,the SLM-processed HEA composite exhibited a high ultimate tensile strength greater than 1.4 Ga and enhanced *** work demonstrates that adding Fe-based MG powders as glues into SLM-processed HEAs may be an attractive method to heal cracks and simultaneously enhance the mechanical properties of additively manufactured products.

关键词： Selective laser melting High-entropy alloys Crack healing Metallic glasses Mechanical properties

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Information Express of Soft Bionic Finger Based on Visual Recognition

Information Express of Soft Bionic Finger Based on Visual Re...

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IEEE International Conference on Cyborg and Bionic Systems (CBS)

作者： Sai Li Jiarun Wang Xinpeng Li Zixin Huang School of Electrical and Information Engineering Wuhan Institute of Technology Wuhan China Hubei Key Laboratory of Digital Textile Equipment Wuhan Textile University Wuhan China Ministry of Education Key Laboratory of Textile Fiber and Products (Wuhan Textile University) Wuhan China State Key Laboratory of New Textile Materials and Advanced Processing Technologies (Wuhan Textile University) Wuhan China

Soft robots have developed rapidly because of their own structure, adaptability and safety, which can be applied in different fields. However, the human robot interaction of soft robots faces enormous challenges. In this paper, we take the soft bionic finger (SBF) as the research object, design a multi chamber SBF, and propose a visual recognition to drive SBF. The bending information of the finger is converted into the information of driving air pressure, and drive the SBF. The SBF can simulate the bending of human finger and replace human finger to express some information. Finally, in the visual bending experiment, it is verified that the error between the bending angle of the human finger and the bending angle of the SBF is within a certain allowable range. It shows the feasibility of driving SBF to express information based on visual recognition, and also reflects strong human robot interaction.

关键词： Deformable models Visualization Computational modeling Fingers Human-robot interaction Bending Soft robotics

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In situ reduced MXene/AuNPs composite toward enhanced charging/discharging and specific capacitance

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Journal of advanced Ceramics 2021年第5期10卷 1061-1071页

作者： Zixiang ZHENG Wei WU Tao YANG Enhui WANG Zhentao DU Xinmei HOU Tongxiang LIANG Hailong WANG Beijing Advanced Innovation Center for Materials Genome Engineering Collaborative Innovation Center of Steel TechnologyUniversity of Science and Technology BeijingBeijing 100083China MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsGuangxi UniversityNanning 530004China School of Materials Science and Engineering Jiangxi University of Science and TechnologyGanzhou 341000China School of Materials Science Engineering Zhengzhou UniversityZhengzhou 450001China

In this work,gold nanoparticles(AuNPs)decorated Ti_(3)C_(2)T_(x) nanosheets(MXene/AuNPs composite)are fabricated through a self-reduction reaction of Ti_(3)C_(2)T_(x) nanosheets with HAuCl_(4) aqueous *** obtained composite is characterized as AuNPs with the diameter of about 23 nm uniformly dispersing on nanosheets without *** composite(MXene decorated on 4.8 wt% AuNPs)is further employed to construct supercapacitor for the first time with a higher specific capacitance of 278 F·g^(-1) at 5 mV·s^(-1) than that of pure Ti_(3)C_(2)T_(x) and 95% of cyclic stability after 10,000 ***,MXene/AuNPs composite symmetric supercapacitor with filter paper as separator and H_(2)SO_(4) as electrolyte,is *** supercapacitor exhibits a high volumetric energy density of 8.82 Wh·L^(-1) at a power density of 264.6 W·L^(-1) and ultrafast-charging/discharging *** exhibits as a promising candidate applied in integrated and flexible supercapacitors.

关键词： supercapacitors MXene gold nanoparticles(AuNPs) self-reduction composite

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