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Next Nanotechnology 2024年 5卷

作者： Zixuan Guo Gengcheng Liao Long Ren Hui Qiao Zongyu Huang Ziyu Wang Xiang Qi Hunan Key Laboratory for Micro-Nano Energy Materials and Devices and School of Physics and Optoelectronic Xiangtan University Hunan 411105 PR China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and Engineering Wuhan University of Technology Hubei 430000 PR China Suzhou Institute of Wuhan University Suzhou 215125 PR China

Flexible sensors play an important role in simulation, brain-computer interaction, intelligent robots, and biological detection. Due to the progress of modern medical means, the construction of wearable flexible sensors to realize remote and continuous monitoring of human physical indicators and physiological parameters has become a hot research topic. Non-invasive sensor is a device that can detect physiological parameters without cutting the skin or puncturing the body. They have wide application prospects in the fields of medical treatment, fitness, and daily care due to the following advantages: real-time monitoring, portability, accuracy, and cost reduction. Liquid metal has become a great candidate for constructing flexible biosensors because of its high conductivity, deformability, self-healing, and bio-friendly properties, its spontaneous formation of an oxide film due to exposure to oxygen provides a convenient reaction platform for the preparation of other materials. Two-dimensional materials are inherently superior in preparing sensors due to their great advantages unique chemical and physical properties, their high surface area-to-volume ratios and ultra-high surface sensitivity to the environment also can be used to prepare flexible sensor. This study presents an overview and introduction of biosensors fabricated by liquid metal and two-dimensional materials, including how to prepare specific two-dimensional materials based on liquid metal, and the stripping method is also included. Three kinds of applications are discussed in detail, including the detection of human glucose concentration, pulse detection, and sweat analysis, whose sensing principles depend on piezoelectric, optical, and electrochemical. At the end of the article, we summarized the current challenges faced by biosensors based on liquid metal and looked forward to its future development and future directions of advances.

关键词： Liquid metal Two-dimensional materials Non-invasive Flexible sensor Sensing principles

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A New Type of Nanogel Carrier based on Mixed Pluronic Loaded with Low-Dose Antitumor Drugs

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Journal of Wuhan University of technology(materials Science) 2019年第4期34卷 960-967页

作者： YIN Meizhen YU Xin School of Medicine Hubei Polytechnic UniversityHuangshi 435003China School of Medicine Inner Mongolia University for NationalitiesInner Mongolia Tongliao 028000China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and Biomedical Materials and Engineering CenterWuhan University of TechnologyWuhan 430070China

To design a new type of antitumor nanodrug carrier with good biocompatibility, a drug delivery system with a 2.19% drug-loading rate, measured by high-performance liquid chromatography(HPLC), was prepared by membrane hydration using a mixed polymer: Pluronic■ F-127, which binds folic acid(FA), Pluronic■ F-68 and triptolide(TPL)(FA-F-127/F-68-TPL). As a control, another drug delivery system based on a single polymer(FA-F-127-TPL) with a 1.90% drug-loading rate was prepared by substituting F-68 with F-127. The average particle sizes of FA-F-127/F-68-TPL and FA-F-127-TPL measured by a particle size analyzer were 30.7 nm and 31.6 nm, respectively. Their morphology was observed by atomic force microscopy(AFM). The results showed that FA-F-127-TPL self-assembled into nanomicelles, whereas FA-F-127/F-68-TPL self-assembled into nanogels. An MTT assay showed that a very low concentration of FA-F-127/F-68-TPL or FA-F-127-TPL could significantly inhibit the proliferation of multidrug-resistant(MDR) breast cancer cells(MCF-7/ADR cells) and induce cell death. The effects were significantly different from those of free TPL(P < 0.01). Using the fluorescent probe Nile red(Nr) as the drug model, FA-F-127/F-68-Nr nanogels and FAF-127-Nr nanomicelles were prepared and then incubated with human hepatocarcinoma(HepG2) and MCF-7/ADR cells, and the fluorescence intensity in the cells was measured by a multifunctional microplate reader. The results indicated that both FA-F-127/F-68-Nr and FA-F-127-Nr had sustained release in the cells, but HepG2 and MCF-7/ADR cells exhibited significantly higher endocytosis of FA-F-127/F-68-Nr than that of FA-F-127-Nr(P < 0.01). A nude mice transplanted tumor model was prepared to monitor FA-F-127/F-68-Nr in the tumor tissue and organs by whole-body fluorescent imaging. The results showed that FA-F-127/F-68-Nr targeted tumor tissues. The prepared nanogels had small particle size, were easy to swallow, exhibited slow release property,targeted tumor cells, a

关键词： pluronic nanogels nanodrug carriers triptolide

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In-situ chloride/potassium passivated ZnO nanocrystals for improved charge extraction in PbS quantum dot solar cells

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Journal of Colloid and Interface Science 2025年 698卷 138108页

作者： Zeng, Tao Wang, Lijing Guo, Zhangwang Shi, Yuxing Chen, Yunxia Dong, Gang Li, Wei Meng, Lingju National Engineering Research Center for Domestic & Building Ceramics School of Materials and Engineering Jingdezhen Key Laboratory of Environmental Ceramics Jiangxi Key Laboratory of Advanced Ceramic Materials Jingdezhen Ceramic University Jingdezhen333403 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun130033 China Department of Chemistry and Materials Science Aalto University Espoo02150 Finland

Electron transport layers comprising colloidal ZnO nanocrystals are commonly utilized in PbS quantum dot solar cells. However, the presence of surface defects induced by oxygen vacancies and surface hydroxyls poses a significant obstacle to high-performance device. Consequently, there is an urge for realizing ZnO nanocrystals with reduced surface defects. Herein, we developed an in-situ passivation strategy for synthesizing ZnO nanocrystals, denoted as Cl/K-ZnO, with suppressed surface defects by Cl/K ions. The integration of the Cl/K-ZnO electron transport layer into the photovoltaics has led to a remarkable decrease in surface defects and reasonable energy band alignment for better carrier extraction. Accordingly, we achieved the efficient photovoltaics with a champion power conversion efficiency of 11.17 % and an impressive operational stability, retained 83 % of the initial power conversion efficiency after an operation period of 200 h under AM 1.5 G illumination in N2 glovebox. © 2025 Elsevier Inc.

关键词： II-VI semiconductors

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Tunable Band Gap of Diamond Twin Boundaries by Strain Engineering

SSRN

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SSRN 2022年

作者： Yan, Xuexi Jiang, Yixiao Yang, Bing Ma, Shangyi Yao, Tingting Tao, Ang Chen, Chunlin Ma, Xiuliang Ye, Hengqiang Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences School of Material Science and Engineering University of Science and Technology of China Shenyang110016 China Ji Hua Laboratory Foshan528200 China State Key Lab of Advanced Processing and Recycling on Non-ferrous Metals Lanzhou University of Technology Lanzhou730050 China

Diamond thin films are promising wide band gap semiconductor materials for applications in electronic and microwave devices. Revealing the mechanism of how twin boundaries impact the band gap of diamond is of critical importance since they are the most common defects in polycrystalline diamond films. Here, nanocrystalline diamond films are synthesized by microwave plasma-enhanced chemical vapor deposition. The atomic and electronic structures of diamond lamellar and fivefold twins, and their evolution behaviors with the increase of axial tensile strain, are investigated by combining aberration-corrected transmission electron microscopy with first-principles calculations. There is no intrinsic stress concentration at the lamellar twin boundary, and its band gap equals to that of bulk diamond (i.e., 5.3 eV). An intrinsic in-plane compressive stress field is formed and the band gap is increased evidently (i.e., 0.6 eV) in the center of fivefold twin. When applying an axial tensile strain up to 15%, the band gap of bulk diamond, lamellar and fivefold twins reduces significantly to 2.2 eV, 2.1 eV and 2.4 eV, respectively, which is mainly due to the decrease of pz orbital energy caused by the increase of axial bond length during the tensile process. Under the same axial tensile strain, the band gap of fivefold twin is always larger than those of lamellar twin and bulk diamond due to the formation of in-plane five-membered carbon rings in the center. The findings of tunable band gap by strain engineering will benefit for the innovation and design of advanced diamond functional devices. © 2022, The Authors. All rights reserved.

关键词： Energy gap

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575-fs passively mode-locked Yb:CaF2 ceramic laser

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Chinese Physics B 2020年第7期29卷 326-330页

作者： Cong Wang Qian-Qian Hao Wei-Wei Li Hai-Jun Huang Shao-Zhao Wang Da-Peng Jiang Jie Liu Bing-Chu Mei Liang-Bi Su Shandong Provincial Engineering and Technical Center of Light Manipulations&Shandong Provincial Key Laboratory of Optics and Photonic Device School of Physics and ElectronicsShandong Normal UniversityJinan 250358China Collaborative Innovation Center of Light Manipulations and Applications Shandong Normal UniversityJinan 250358China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Science Wuhan University of TechnologyWuhan 430070China Synthetic Single Crystal Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201800China Key Laboratory of Transparent and Opto-functional Inorganic Materials Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201800China

A Yb-doped CaF2 transparent ceramics was successfully fabricated by the hot-pressed method and its laser characteristics were studied.A broad tuning performance and mode-locked laser operation were demonstrated in this ceramics for the first time,to our best knowledge.A 60-nm continuous-wavelength tunable laser from 1019 nm to 1079 nm was obtained with a birefringent *** employing a semiconductor saturable absorber mirror without additional dispersion compensation elements,a continuous-wave mode-locked laser with pulse duration as short as 575 fs was delivered,at a central wavelength of 1048.5 *** oscillator is operated under a repetition rate of 55 *** results indicate that the Yb:CaF2 transparent ceramics is an ideal candidate for the development of ultrafast lasers in the near-infrared regime.

关键词： mode-locking tunable transparent ceramics solid-state lasers

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MOF-derived ZnO/PANI S-scheme heterojunction for efficient photocatalytic phenol mineralization coupled with H 2 O 2 generation

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Acta Physico-Chimica Sinica 2025年第10期41卷

作者： Bowen Liu Jianjun Zhang Han Li Bei Cheng Chuanbiao Bie State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 Hubei Province China Laboratory of Solar Fuel Faculty of Materials Science and Chemistry China University of Geosciences 68 Jincheng Street Wuhan 430078 Hubei Province China School of Automotive Materials Hubei University of Automotive Technology Shiyan 442020 Hubei Province China

Complete mineralization of persistent organic pollutants in wastewater remains a formidable challenge. Here, we report the rational design of a ZIF-8-derived ZnO/polyaniline (PANI) S-scheme heterojunction synthesized via in situ oxidative polymerization. advanced characterizations confirm the S-scheme charge transfer mechanism within the ZnO/PANI heterojunction. The optimized composite achieves complete phenol mineralization within 60 min while concurrently generating H 2 O 2 at a rate of 0.75 mmol∙L −1 ·h −1 under simulated solar irradiation. Mechanistic studies verify that the S-scheme heterojunction retains strong redox potentials, driving the formation of reactive oxygen species for H 2 O 2 production and phenol degradation. This work establishes a universal design paradigm for MOF-derived inorganic/organic S-scheme heterojunctions, effectively coupling solar-driven energy conversion with environmental remediation.

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Multi-crosslinked network magnesium phosphate bone cement with high flexural properties

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Ceramics International 2025年

作者： Gao, Zijie Liu, Jiawei Zhang, Mingjiang Chen, Pengfei Goto, Takashi Tu, Rong Dai, Honglian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China National Energy Key Laboratory for New Hydrogen-ammonia Energy Technologies Foshan Xianhu Laboratory Foshan528200 China New Industry Creation Hatchery Center Tohoku University Sendai980-8579 Japan

Magnesium phosphate cement (MPC) is a bone repair material with good early strength, but its low flexural strength limits its application in bone defect regions subjected to multi-directional loads and repeated stresses. Traditional strategies for reinforcing inorganic bone cement, such as lamination, provide excellent mechanical strength but result in the deterioration of other properties. For instance, the reduction in injectability makes it difficult for the bone cement to fill irregular bone defect sites. Therefore, developing a bone cement with high strength, good operability, and biological activity remains a significant challenge. This study aimed to construct a triple-cured gel-based bone cement by incorporating polyurethane-sodium alginate (EPU-SA) emulsion into magnesium phosphate bone cement (TMPC), forming a structurally more continuous and stable interpenetrating triple network composite system (ES-T) during the hydration process. The in-situ reinforcement of TMPC was achieved through the dual effects of physical and chemical interactions. The results showed that the flexural strength of ES-T under humid conditions was 214 % higher than that of TMPC, reaching 50.5 MPa. Interface analysis between organic and inorganic components confirmed the bonding mechanism between the emulsion and bone cement and clarified the reinforcement mechanism. In addition, ES-T demonstrated promotive effects on cellular osteogenic differentiation and generation of new bone tissue by in vitro and in vivo experiments. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Bone cement

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Strongly enhancing the energy storage properties and stability of amorphous BaTiO3 thin films via ions doping

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Scripta Materialia 2025年 265卷

作者： Chang, Ruiling Yao, Zhonghua Xing, Yutong Wang, Jun Hao, Hua Cao, Minghe Liu, Hanxing State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Material Science and Engineering Wuhan University of Technology Wuhan430070 China International School of Material Science and Engineering Wuhan University of Technology Wuhan430070 China Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya572000 China

Amorphous thin films with high power density and breakdown strength satisfy the needs of advanced power electronic systems. Nonetheless, improving the energy storage density of amorphous films is critical for addressing the growing demand for electricity. We apply high spontaneous polarization BaTiO3 as the main component to make (1-x)Ba(Ti0.99Mn0.02)O3-xBiFeO3((1-x)BTM-xBF) thin films. Doping BiFeO3 (BF) synergistically boosts polarization. The introduction of amorphous phases and Mn ions enhances the breakdown strength. The results demonstrate that, at x = 0.10, the film can achieve both a high efficiency of 80.3 % and an excellent energy storage density of 111.3 J cm-3. Moreover, the film has a strong thermal stability within a broad range of 20 to 160 °C, as well as the cycling reliability is as high as 105 times. The present study offers a practical approach to develop film capacitors with outstanding energy storage capabilities. © 2025 Acta Materialia Inc.

关键词： Amorphous films

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Fractal Design of Hierarchical PtPd with Enhanced Exposed Surface Atoms for Highly Catalytic Activity and Stability

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Nano letters 2023年第16期23卷 7371-7378页

作者： Jie Ying Yuxuan Xiao Jiangbo Chen Zhi-Yi Hu Ge Tian Gustaaf Van Tendeloo Yuexing Zhang Mark D Symes Christoph Janiak Xiao-Yu Yang School of Chemical Engineering and Technology Sun Yat-sen University Zhuhai 519082 China. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China. EMAT (Electron Microscopy for Materials Science) University of Antwerp Groenenborgerlaan 171 B-2020 Antwerpen Belgium. College of Chemistry and Chemical Engineering Hubei University Wuhan 430062 China. WestCHEM School of Chemistry University of Glasgow University Avenue Glasgow G12 8QQ U.K. Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf Germany. School of Engineering and Applied Sciences Harvard University Cambridge Massachusetts 02138 United States.

Hierarchical assembly of arc-like fractal nanostructures not only has its unique self-similarity feature for stability enhancement but also possesses the structural advantages of highly exposed surface-active sites for activity enhancement, remaining a great challenge for high-performance metallic nanocatalyst design. Herein, we report a facile strategy to synthesize a novel arc-like hierarchical fractal structure of PtPd bimetallic nanoparticles (h-PtPd) by using pyridinium-type ionic liquids as the structure-directing agent. Growth mechanisms of the arc-like nanostructured PtPd nanoparticles have been fully studied, and precise control of the particle sizes and pore sizes has been achieved. Due to the structural features, such as size control by self-similarity growth of subunits, structural stability by nanofusion of subunits, and increased numbers of exposed active atoms by the curved homoepitaxial growth, h-PtPd displays outstanding electrocatalytic activity toward oxygen reduction reaction and excellent stability during hydrothermal treatment and catalytic process.

关键词： PtPd nanoalloys arc-like nanostructures directional catalysis fractal design hierarchical structures

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Erratum: Additive-mediated intercalation and surface modification of MXenes (Chem. Soc. Rev. (2022) DOI: 10.1039/d0cs01487g)

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Chemical Society Reviews 2022年

作者： Zou, Jing Wu, Jing Wang, Yizhou Deng, Fengxia Jiang, Jizhou Zhang, Yizhou Liu, Song Li, Neng Zhang, Han Yu, Jiaguo Zhai, Tianyou Alshareef, Husam N. School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development Utilization of Ministry of Education Wuhan Institute of Technology Hubei Wuhan430205 China Key Laboratory of Rare Mineral Ministry of Natural Resources Geological Experimental Testing Center of Hubei Province Hubei Wuhan430034 China Thuwal23955-6900 Saudi Arabia State Key Laboratory of Urban Water Resources and Environment School of Environment Harbin Institute of Technology Harbin150090 China School of Chemistry and Materials Science Nanjing University of Information Science & Technology Nanjing210044 China Key Laboratory for Organic Electronics & Information Displays Institute of Advanced Materials Nanjing University of Posts and Telecommunications Nanjing210023 China State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha410082 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Hubei Wuhan430070 China Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics Key Laboratory of Optoelectronic Devices and Systems Ministry of Education and Guangdong Province Shenzhen University Shenzhen518060 China State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Hubei Wuhan430074 China

In the original article, the author affiliation for Jiaguo Yu was incorrect. The correct affiliations are as shown here. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to a...

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