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Unleashing the Potential of Electroactive Hybrid Biomaterials and Self‑Powered Systems for Bone Therapeutics

Nano-Micro Letters 2025年第2期17卷 463-497页

作者： Shichang Liu Farid Manshaii Jinmiao Chen Xinfei Wang Shaolei Wang junyi yin Ming Yang Xuxu Chen Xinhua yin Yunlei Zhou Honghui Hospital Xi’an Jiaotong UniversityXi’an 710018People’s Republic of China Department of Bioengineering Henry Samueli School of Engineering and Applied ScienceUniversity of California Los AngelesLos Angeles 90095USA Hangzhou Institute of Technology Xidian UniversityHangzhou 311231People’s Republic of China

The incidence of large bone defects caused by traumatic injury is increasing worldwide,and the tissue regeneration process requires a long recovery time due to limited self-healing *** bioelectrical phenomena have been well recognized as critical biophysical factors in bone remodeling and *** by bioelectricity,electrical stimulation has been widely considered an external intervention to induce the osteogenic lineage of cells and enhance the synthesis of the extracellular matrix,thereby accelerating bone *** ongoing advances in biomaterials and energy-harvesting techniques,electroactive biomaterials and self-powered systems have been considered biomimetic approaches to ensure functional recovery by recapitulating the natural electrophysiological microenvironment of healthy bone *** this review,we first introduce the role of bioelectricity and the endogenous electric field in bone tissue and summarize different techniques to electrically stimulate cells and ***,we highlight the latest progress in exploring electroactive hybrid biomaterials as well as self-powered systems such as triboelectric and piezoelectric-based nanogenerators and photovoltaic cell-based devices and their implementation in bone tissue ***,we emphasize the significance of simulating the target tissue’s electrophysiological microenvironment and propose the opportunities and challenges faced by electroactive hybrid biomaterials and self-powered bioelectronics for bone repair strategies.

关键词： Electroactive biomaterials Self-powered bioelectronics Bone regeneration Bone tissue

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Bioinspired nanomaterials for wearable sensing and human–machine interfacing

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Nano Research 2024年第2期17卷 445-461页

作者： Vishesh Kashyap junyi yin Xiao Xiao Jun Chen Department of Bioengineering University of CaliforniaLos AngelesLos AngelesCA 90095USA Department of Mechanical and Aerospace Engineering University of CaliforniaLos AngelesLos AngelesCA 90095USA

The inculcation of bioinspiration in sensing and human–machine interface(HMI)technologies can lead to distinctive characteristics such as conformability,low power consumption,high sensitivity,and unique properties like self-healing,self-cleaning,and *** sensing and HMI are fields rife with opportunities for the application of bioinspired nanomaterials,particularly when it comes to wearable sensory systems where biocompatibility is an additional *** review discusses recent development in bioinspired nanomaterials for wearable sensing and HMIs,with a specific focus on state-of-the-art bioinspired capacitive sensors,piezoresistive sensors,piezoelectric sensors,triboelectric sensors,magnetoelastic sensors,and electrochemical *** also present a comprehensive overview of the challenges that have hindered the scientific advancement in academia and commercialization in the industry.

关键词： bioinspired nanomaterials human–machine interface wearable sensors wearable bioelectronics

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Triboelectric nanogenerators for self-powered neurostimulation

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Nano Research 2024年第10期17卷 8926-8941页

作者： Shumao Xu Farid Manshaii Xiao Xiao junyi yin Jun Chen Department of Bioengineering University of CaliforniaLos AngelesLos AngelesCA 90095USA

The burgeoning field of soft bioelectronics heralds a new dawn in medical treatment for neurological and psychiatric conditions,presenting innovative methods for the stimulation,inhibition,and precise sensing of neuronal *** to these advancements is the challenge of power supply;devices dependent on traditional batteries face limitations regarding miniaturization and require invasive surgeries for battery *** nanogenerators(TENGs),which generate power from biomechanical movements,offer a promising solution for developing self-powered neurostimulation devices without the need for an external power *** review delves into recent progress in TENGs,with a focus on their application in selfpowered neurostimulation *** utility of TENGs across various nervous systems—including the center,autonomic,and somatic nervous systems—is explored and presented,highlighting the potential for these devices to facilitate neurological *** summarizing TENGs’operational details and the potential for clinical translation,this review also identifies challenges associated with the implantation and integration of neural electrodes and presents recent advances in solutions,aiming to reshape electric treatments for neurological diseases.

关键词： triboelectric nanogenerators neurostimulation self-powered soft bioelectronics biomechanical energy harvesting

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Theory-driven designed TiO_(2)@MoO_(2)heterojunction:Balanced crystallinity and nanostructure toward desirable kinetics and highrate sodium-ion storage

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Nano Research 2023年第4期16卷 4941-4949页

作者： junyi yin Pengqi Hai Yuan Gao Zihan Gan Chao Wu Yonghong Cheng Xin Xu State Key Laboratory of Electrical Insulation and Power Equipment Center of Nanomaterials for Renewable EnergySchool of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China Frontier Institute of Science and Technology Xi’an Jiaotong UniversityXi’an 710049China

Sodium-ion batteries(SIBs)are promising candidates for large-scale energy storage due to their cost effectiveness and the unlimited availability of ***,there remains a need for the rational design of better anodic materials than are currently available,as these materials are critical for the sodium-ion storage *** this work,theoretical calculations were performed to design a conceptually novel TiO_(2)@MoO_(2)heterojunction(TMH)anode that was expected to exhibit better electrochemical performance than current *** TMH anode was fabricated via a facile and cost-effective method,and the results of in-depth sodium-ion-storage performance and reaction kinetics analyses indicate that it exhibited an excellent rate capability and enhanced pseudocapacitive response,due to its high *** electrochemical performance was superior to that of previously reported anodic materials,confirming the accuracy of the theoretical *** of TMH’s nanostructure at high temperatures resulted in a decrease in its electrochemical performance,indicating the key role played by the nanostructure in TMH’s ability to store sodium *** study demonstrates that integration of theoretical predictions with experimental investigations offers insights into how materials’crystallinity and nanostructure affect their pseudocapacitive sodiumion storage capabilities,which will help to guide the rational design of effective anodic materials for SIBs.

关键词： theory-driven electrode development heterojunction crystallinity nanostructure enhanced pseudocapacitive response

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Spatially continuous transformer online temperature monitoring based on distributed optical fibre sensing technology

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High Voltage 2022年第2期7卷 336-345页

作者： Yunpeng Liu Xinye Li Huan Li junyi yin Jiaxue Wang Xiaozhou Fan State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBaodingChina Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defence North China Electric Power UniversityBaodingChina

Transformer internal thermal monitoring exists huge blind areas,and it is difficult for traditional methods to get fully distributed temperature in real *** this contri-bution,the distributed optical fibre sensor was creatively applied inside an operating 35 kV oil‐immersed transformer which is also qualified for actual power grid oper-ation through the ex‐factory ***,the full‐region temperature along the windings and iron limbs were firstly monitored in a spatiotemporally continuous manner and the hotspots were also closely traced,fluctuating at 90%of the high‐voltage winding height(80%for low‐voltage winding)during the whole process of the heat‐run *** Finite Element Method(FEM)for thermo‐fluid field calculation was then utilized for deeper *** the former basis,the actual detected temperature distributions(both spatial and temporal)were compared with the International Electrotechnical Commission traditional model and some modifi-cations were suggested based on the real time measured *** novel online monitoring application and the detailed internal thermal information may provide a solid reference for the delicate management of power transformers,which also offers a new horizon for the online monitoring in electrical apparatus industry.

关键词： winding fibre Spatial

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Simultaneous regulation on coordination environment and interfacial chemistry via taurine for stabilized Zn metal anode

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Journal of Energy Chemistry 2023年第11期86卷 343-350,I0008页

作者： Xin Xu junyi yin Ruimin Qin Haoliang Liu Xiang Feng Minghui Wang Mingyan Li Weiyu Sun Weichen Shi Bing Xiao Yaqiong Su Yonghong Cheng State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049ShannxiChina Xi'an Key Laboratory of Sustainable Energy Materials Chemistry School of Chemistry and Engineering Research Center of Energy Storage Materials and DevicesMinistry of EducationXi’an Jiaotong UniversityXi’an 710049ShannxiChina

Aqueous Zn-ion batteries(AZIBs)are the potential options for the next-generation energy storage scenarios due to the cost effectiveness and intrinsic ***,the industrial application of AZIBs is still impeded by a series of parasitic reactions and dendrites at zinc *** this study,taurine(TAU)is used in electrolyte to simultaneously optimize the coordination condition of the ZnSO4electrolyte and interfacial chemistry at the *** can preferentially adsorb with the zinc metal and induce an in situ stable and protective interface on the anode,which would avoid the connection between H_(2)O and the zinc metal and promote the even deposition of Zn^(2+).The resulting Zn//Zn batteries achieve more than 3000 hours long cyclic lifespan under 1 mA cm^(-2)and an impressive cumulative capacity at 5 mA cm^(-2).Moreover,Zn//Cu batteries can realize a reversible plating/stripping process over 2,400cycles,with a desirable coulombic efficiency of 99.75%(1 mA cm^(-2)).Additionally,the additive endows Zn//NH_(4)V_(4)O_(10)batteries with more stable cyclic performance and ultrafast rate *** capabilities can promote the industrial application of AZIBs.

关键词： Electrolyte Additive Coordination Environment Interfacial Chemistry Zinc Metal Anode

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Fisher行波解方程的Liouville可积性条件

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北京交通大学学报 2008年第3期32卷 94-97页

作者：尹君毅管克英北京交通大学理学院北京100044

利用复域上二元多项式函数的整除定理,给出并证明了Fisher行波解方程存在代数曲线解的充要条件,并根据二阶多项式自治系统的Liouville可积判别法则,得到并证明了该方程在Liou-ville意义下的可积性条件.

关键词： Fisher方程 Liouville可积代数曲线解整除定理

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A review on promoting structure research of polysaccharide from natural resources

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Science Foundation in China 2018年第1期26卷 75-83页

作者： yin junyi XIE MingYong NIE ShaoPing State Key Laboratory of Food Science and Technology Nanchang University Nanchang 330047 China

Polysaccharides widely exist in plants,animals and microorganisms,and have important impacts on the diet and health of ***,the research on polysaccharide has progressed much slower than that of protein,due to the complexity of polysaccharide structures,limitations on structural theory,and poor understanding of the mechanism of the *** order to promote related research fields,this review provided recommendations to solve the critical issues in the research of polysaccharide *** followings are recommended:correct understanding structure types of polysaccharide,improving the preparation efficiency of polysaccharide to ensure reproducibility, and improving characterization of fine structures utilizing "partial degradation-methylation-NMR".Importantly,the theories and research ideas for protein research should not be indiscriminately applied to polysaccharide *** theories and research methods for polysaccharide should be established to promote the field.

关键词： Polysaccharide Structural characterization Theory

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长裙竹荪β-葡聚糖结构特征和溶液性质

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中国食品学报 2023年第3期23卷 13-19页

作者：王喆殷军艺聂少平南昌大学食品科学与技术国家重点实验室南昌330047

β-葡聚糖具有多种生理活性和良好的生理功能。长裙竹荪含有较多的β-葡聚糖,目前对其结构与溶液性质缺少系统认识。本文从长裙竹荪中提取一种水溶性多糖(DIPP),采用酸水解、红外光谱、甲基化处理、扫描电镜(SEM)、高效尺寸排阻色谱串... 详细信息

β-葡聚糖具有多种生理活性和良好的生理功能。长裙竹荪含有较多的β-葡聚糖,目前对其结构与溶液性质缺少系统认识。本文从长裙竹荪中提取一种水溶性多糖(DIPP),采用酸水解、红外光谱、甲基化处理、扫描电镜(SEM)、高效尺寸排阻色谱串联多角度激光散射仪(HPSEC-MALLS)和流变仪等技术对其理化性质、结构特征和溶液性质进行表征。结果表明,DIPP重均分子质量为2.8×10^(6) u,单糖组成仅检测到葡萄糖,糖残基有T-Glap(29.8%)、1,3-Glcp(42.6%)和1,3,6-Glcp(27.8%)。红外光谱显示DIPP具有β构型。DIPP具有较高的特性黏度([η]=1094.3 mL/g),而且0.5%DIPP溶液便表现出较高的黏度和凝胶性质。结论:DIPP是一种在溶液中具有较高黏度的β-葡聚糖,研究结果可为其功能活性研究及产品开发提供参考。

关键词：长裙竹荪 β-葡聚糖结构溶液性质

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高校图书馆残障读者服务的现状与对策研究——基于对41所“双一流”高校的调查

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中国特殊教育 2023年第4期 10-17页

作者：殷俊益北京师范大学图书馆北京100875

随着我国高等融合教育的发展,残疾学生进入普通高校接受教育成为大势所趋,为高校图书馆残障读者服务的建设和完善提出了迫切要求。研究选取当前代表我国高校最高水平的41所“双一流”高校图书馆,对其残障读者服务的现状进行调研。结果发... 详细信息

随着我国高等融合教育的发展,残疾学生进入普通高校接受教育成为大势所趋,为高校图书馆残障读者服务的建设和完善提出了迫切要求。研究选取当前代表我国高校最高水平的41所“双一流”高校图书馆,对其残障读者服务的现状进行调研。结果发现,被调查高校图书馆残障读者服务已经有一定基础,但仍存在服务理念相对薄弱、服务内容有所欠缺、服务针对性有待提升等问题,且存在一定地区差异。在此基础上,本研究借鉴发达国家和地区相关工作经验,提出了有针对性的对策和建议。

关键词：高校图书馆残障读者服务现状与对策

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