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All-natural phyllosilicate-polysaccharide triboelectric sensor for machine learning-assisted human motion prediction

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npj Flexible Electronics 2023年第1期7卷 351-360页

作者： Yuanhao Liu Yiwen Shen Wei Ding Xiangkun Zhang Weiliang Tian Song Yang Bin Hui Kewei Zhang Key Laboratory of Chemical Engineering in South Xinjiang College of Chemistry and Chemical EngineeringTarim University843300 AlarP.R.China State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center for Marine Biomass FibersMaterials and Textiles of Shandong ProvinceCollege of Materials Science and EngineeringInstitute of Marine Biobased MaterialsQingdao University266071 QingdaoP.R.China Department of Hepatology Beijing Ditan Hospital of Capital Medical University100015 BeijingP.R.China

The rapid development of smart and carbon-neutral cities motivates the potential of natural materials for triboelectric ***,the relatively deficient charge density makes it challenging to achieve high Maxwell’s displacement ***,we propose a methodology for improving the triboelectricity of marine polysaccharide by incorporating charged phyllosilicate *** a proof-of-concept,a flexible,flame-retardant,and eco-friendly triboelectric sensor is developed based on all-natural composite paper from alginate fibers and vermiculite *** interlaced fibers and nanosheets not only enable superior electrical output but also give rise to wear resistance and mechanical *** fabricated triboelectric sensor successfully monitors slight motion signals from various joints of human ***,an effective machine-learning model is developed for human motion identification and prediction with accuracy of 96.2%and 99.8%,*** work offers a promising strategy for improving the triboelectricity of organo-substrates and enables implementation of self-powered and intelligent platform for emerging applications.

关键词： prediction motion enable

Theranostic Gold Nanoclusters for NIR-II Imaging and Photodynamic Therapy

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Chemical Research in Chinese Universities 2021年第4期37卷 934-942页

作者： TANG Lin ZENG Xiaodong ZHOU Hui GUI Conghao LUO Qiulin ZHOU Wenyi WU Jing LI Qianqian LI Yang XIAO Yuling State Key Laboratory of Virology Key Laboratory of Combinatorial Biosynthesis and Drug Discovery of Ministry of EductionHubei Province Engineering and Technology Research Center for Fluorinated PharmaceuticalsSchool of Pharmaceutical SciencesWuhan UniversityWuhan430071P.R.China shenzhen Institute of Wuhan University Shenzhen518057P.R.China

Fluorescence imaging in the second near-infrared window(NIR-II,1000―1700 nm)has demonstrated tremendous promise for biomedical applications,with its extraordinarily high resolution and deep tissue *** gold nanoclusters(AuNCs)have shown unique features for NIR-II imaging,such as photostability and biocompatibility,as compared to organic NIR-II molecules or other inorganic NIR-II ***,we report the first-in-class protein-capped ultrasmall AuNCs(BSA-AuNCs,BSA=bovine serum albumin)for simultaneous NIR-II imaging and photodynamic *** BSA-AuNCs show a uniform size,high quantum yield and excellent photostability,display a high accumulation and long retention in 4T1 tumor,and are used for clear imaging of blood vessels and lymph ***,laser irradiation of these AuNCs can rapidly trigger ROS generation,leading to effective inhibition of tumor cell growth in vitro and in *** study demonstrates the feasibility of a protein-capped ultrasmall AuNCs platform for theranostic applications by combining NIR-II imaging and photodynamic cancer therapy.

关键词： Gold nanocluster Protein capping Bioimaging Second near-infrared window Photodynamic therapy Theranostics

Astrophysical observables for regular black holes with sub-Planckian curvature

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中国物理C:英文版 2023年第8期47卷 136-148页

作者：曾伟凌意蒋青权 School of Physics and Astronomy China West Normal UniversityNanchong 637002China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China School of Physics University of Chinese Academy of SciencesBeijing 100049China

We investigate the photon sphere and marginally stable circular orbit of massive particles over the re-cently proposed regular black holes with sub-Planckian curvature and a Minkowskian *** derive the effective potential for geodesic orbits and determine the radius of circular photon orbits,with an analysis of the stability of these *** extend our analysis to the background of a compact massive object(CMO)without a horizon,whose mass is below the lowest bound for the formation of a black *** massive particles,marginally stable cir-cular orbits become double-valued in the CMO *** a comparison with Bardeen and Hayward black holes,we also find that the locations of the photon sphere and marginally stable circular orbit in the CMO phase with a Minkowskian core are evidently different from those in the CMO phase with a dS core,which potentially provides a way to distinguish between these two types of black holes by astronomical ***,we present the ob-servational constraint on the deviation parameter for such regular black holes using observed data from the black hole M87^(*).

关键词： regular black holes photon sphere marginally stable circular orbit

Divergent Synthesis of Core m1,Core m2 and Core m3 O-Mannosyi Glycopeptides via a Chemoenzymatic Approach

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Chinese Journal of Chemistry 2022年第13期40卷 1571-1577,I0002页

作者： Tianlu Li Youqin Zhang Tong Li Haoru Zhuang Fengshan Wang Ning Wang Richard R.Schmidt Peng Peng National Glycoengineering Research Center Shandong Key Laboratory of Carbohydrate Chemistry and GlycobiologyNMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate Based MedicineShandong UniversityQingdaoShandong 266237China shenzhen Research Institute of Shandong University ShenzhenGuangdong 518057China Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationSchool of BiotechnologyJiangnan UniversityWuxiJiangsu214122China Department of Chemistry University of KonstanzKonstanz D-78457Germany

O-Mannosylation plays a vital role in the regulation of a variety range of biological processes,for instance,brain and muscle ***,the precise function remains largely unknown due to its innate *** this regard,it is still welcome to develop efficient methods to access diverse structurally-defined *** this study,a diversity-oriented assembly of O-mannosylα-dystroglycan(α-DG)glycopeptides has been achieved via a chemoenzymatic *** strategy features(i)gram scale divergent synthesis of core m1,core m2 and core m3 mannosylated amino acids from judiciously designed protecting group strategies and chemical glycosidation;(i)efficient glycopeptide assembly via the optimized microwave-assisted solid phase peptide synthesis(SPpS);and(ii)enzymatic elaboration of the core glycan structures to install galactosyl and sialyl-galactosyl *** efficiency and flexibility of this chemoenzymatic approach was demonstrated with the construction of 12 glycopeptides with different core m1,core m2 and core m3 mannosyl glycans,including a core m2 glycopeptide bearing a heptasaccharide for the first time.

关键词： Glycopeptides oligosaccharides Regioselectivity Enzyme catalysis Divergent synthesis

Manipulating Skyrmion Motion on a Nanotrack with Varied Material Parameters and Tilted Spin Currents

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Chinese Physics Letters 2023年第9期40卷 107-112页

作者：罗佳 Jia-Hao Guo 侯云鹤王君林徐永兵周艳 Philip Wing Tat Pong 赵国平 College of Physics and Electronic Engineering Sichuan Normal UniversityChengdu 610068China Department of Electrical and Electronic Engineering The University of Hong KongHong KongChina School of Integrated Circuits Guangdong University of TechnologyGuangzhou 510006China School of Physics Engineering and TechnologyUniversity of YorkYorkYO105DDUnited Kingdom School of science and Engineering The Chinese University of Hong KongShenzhen 518172China Department of Electrical and Computer Engineering New Jersey Institute of TechnologyNJ 07102USA Center for Magnetism and Spintronics Sichuan Normal UniversityChengdu 610068China

Magnetic skyrmions are topological quasiparticles with nanoscale size and high mobility,which have potential applications in information storage and spintronic *** manipulation of skyrmion’s dynamics in the track is an important topic due to the skyrmion Hall effect,which can deviate the skyrmions from the preferred *** propose a new model based on the ferromagnetic skyrmion,where the skyrmion velocity can be well controlled by adjusting the direction of the *** this design,we can avoid the annihilation of the skyrmion induced by the skyrmion Hall effect,which is confirmed by our micromagnetic simulation based on Mumax^(3).In the meantime,we increase the average velocity of the skyrmion by varying the intrinsic material parameters in the track,where the simulations agree well with our analytical results based on the Thiele ***,we give a phase diagram of the output of the skyrmion in the T-type track,which provides some practical ways for design of logic gates by manipulating crystalline anisotropy through the electrical control.

关键词： equation annihilation topological

Study of the anti-inflammatory effect of the Traditional Mongolian Medicine Hohgardi-9 in acute lung injury

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Traditional Medicine Research 2023年第11期8卷 23-33页

作者： Aodeng Qimuge Tegexi Baiyin Bilige Bilige Temuqile Temuqile Sha-Na Chen Ying-Chun Bai Wuhan Qimuge Siqin Siqin Hugejile Hang Chang-Shan Wang Huricha Baigued De-Zhi Yang Pharmaceutical Laboratory Inner Mongolia International Mongolian HospitalHohhot 010065China Experimental Center Inner Mongolia Traditional Chinese&Mongolian Medical Research InstituteHohhot 010010China School of Life sciences Inner Mongolia UniversityHohhot 010021China Inner Mongolia Key Laboraotry of Mongolian Medicinal Chemistry Inner Mongolia UniversityHohhot 010021China.

Background:Hohgardi-9 is a well-known traditional Mongolian drug that relieves cough and removes *** it is widely used to treat lung diseases clinically,Hohgardi-9’s bioactive constituents and mechanism of action are *** this study,we explored the bioactive compounds in Hohgardi-9 and the mechanism underlying its therapeutic effect against acute lung injury(ALI).Methods:We obtained the main components of Hohgardi-9 and analyzed the targets related to ALI by searching the traditional Chinese medicine systems pharmacology database and existing ***,we constructed the compound-target network using Cytoscape 3.8.0 software to obtain the bioactive compounds in Hohgardi-9 against *** used a string database to investigate the interaction between the possible protein targets of *** also performed Gene Ontology function annotation and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis to predict its anti-ALI ***,to verify the therapeutical effects of Hohgardi-9,we used an ALI rat model and analyzed the components of Hohgardi-9 found in the rat plasma using ultra-high-performance liquid chromatography coupled with Q-Exactive mass ***:The network pharmacology and plasma component analysis showed that Hohgardi-9 contained 31 potentially bioactive components,including quercetin,herbacetin,izoteolin,and columbinetin acetate,which affected the NF-κB,TLR,and TNF signaling pathways via key targets,such as RELA(p65)and *** in vivo experiments using hematoxylin and eosin staining revealed that Hohgardi-9 significantly improved lung tissue injury and pulmonary edema in ALI ***,Hohgardi-9 significantly reduced the expression levels of genes encoding inflammatory factors,such as TRL4,TNF-α,IL-1β,and ICAM1,in the lungs of ALI ***:Hohgardi-9 alleviated ALI by inhibiting inflammation-related gene expression through its active ingredients,such as quercetin and herbaceti

关键词： Hhohgardi-9 acute lung injury active components anti-inflammation

热扩散处理对热浸镀铝Fe−Cr−Si−B铸钢组织演变及腐蚀行为的影响

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Transactions of Nonferrous Metals Society of China 2023年第5期33卷 1522-1539页

作者：张先满陈再雨李星涛季坤鹏罗洪峰万耿平杨少锋海南大学机电工程学院海口570228 海南大学分析测试中心海口570228 南京理工大学材料科学与工程学院南京211167

研究热扩散处理对热浸镀铝Fe−Cr−Si−B铸钢镀层组织及在5%(质量分数)NaCl溶液中的腐蚀行为的影响。结果表明:Fe−Cr−Si−B铸钢中的Fe基体与Al液界面反应产物为柱状结构的FeAl3。在(Cr,Fe)2B/Al界面上形成的周期性层片结构是在热扩散处理过... 详细信息

研究热扩散处理对热浸镀铝Fe−Cr−Si−B铸钢镀层组织及在5%(质量分数)NaCl溶液中的腐蚀行为的影响。结果表明:Fe−Cr−Si−B铸钢中的Fe基体与Al液界面反应产物为柱状结构的FeAl3。在(Cr,Fe)2B/Al界面上形成的周期性层片结构是在热扩散处理过程中形成,而非热浸镀铝。在短时间内表面残留Al层主导了热浸镀铝和热扩散处理镀层在NaCl溶液中的腐蚀行为,直到表面残留Al层被完全消耗。Cl−引起的点蚀优先从块状B−Al−Cr相与FeAl3的界面开始,并沿周期性层片结构扩展。硅颗粒作为阴极,促进了镀层的腐蚀。在Fe−Al金属间化合物层被完全腐蚀之前,钢基体都处于阴极保护中。此外,高温NaCl溶液的腐蚀被显著加速。

关键词：热浸镀铝热扩散处理周期性层片结构腐蚀行为阴极保护

Small-Molecule Fluorophores for Near-Infrared IIb Imaging and ImageGuided Therapy of Vascular Diseases

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CCS Chemistry 2022年第12期4卷 3735-3750页

作者： Yang Li Hua Zhu Xiaobo Wang Yan Cui Lijuan Gu Xiaowen Hou Mengting Guan Junzhu Wu Yuling Xiao Xiaoxing Xiong Xianli Meng Xuechuan Hong Department of Neurosurgery Renmin Hospital of Wuhan UniversityState Key Laboratory of VirologyWuhan University School of Pharmaceutical SciencesWuhan 430060 State Key Laboratory of Southwestern Chinese Medicine Resources Innovative Institute of Chinese Medicine and PharmacyChengdu University of Traditional Chinese MedicineChengdu 611137 College of science Research Center for EcologyLaboratory of Extreme Environmental Biological Resources and Adaptive EvolutionInnovation Center for Traditional Tibetan Medicine Modernization and Quality ControlMedical CollegeTibet UniversityLhasa 850000 Center for Experimental Basic Medical Education Key Laboratory of Combinatorial Biosynthesis and Drug Discovery(MOE)Hubei Provincial Key Laboratory of Developmentally Originated DiseaseHubei Province Engineering and Technology Research Center for Fluorinated PharmaceuticalsWuhan 430071 shenzhen Institute of Wuhan University Shenzhen 518057

Accurate and dynamic visualization of vascular diseases can contribute to restraining further deterioration from diseases in a timely ***,visualization is still unable to precisely determine whether and to what extent blood vessels or brain tissues are ***,we report novel benzobis(1,2,5-thiadiazole)-based second near-infrared region(NIR-II)fluorophores HY1-HY4 with highly twisted structures(55°at the S_(0) state),extremely strong aggregation-induced emission(AIE)characteristics(I/I_(0)>13),and remarkably high fluorescence quantum yields(QYs)(up to 14.45%)in the NIR-II region(>1000 nm)and∼0.27%in the nearinfrared IIb window(NIR-IIb,>1500 nm)in aqueous *** NIR-IIb AIE HY4 dots,high-resolution NIR-IIb fluorescence imaging of revascularization and thrombolysis,and real-time feedback of the therapeutic efficacy of Chinese medicine Dengzhan Xixin injection(DXI)on ischemic stroke,were achieved for the first *** addition,results showed that DXI conferred neuroprotection against cerebral ischemia injury mediated via the angiogenesis *** attractive results provide a new perspective for designing ultrabright NIR-IIb probes for vascular-related phenomena,disease assessment,and precise intraoperative imageguided therapy with a deeper tissue penetration depth and higher resolution.

关键词： aggregation-induced emission NIR-IIb imaging(1500-1700 nm) vascular diseases ischemic stroke image-guided therapy

零相频下离子导体的焦耳加热及其电解反应抑制（英文）

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Engineering 2023年第6期 138-143页

作者：石磊韩宗益冯逸轩张长庚张祺朱贺朱世平 School of science and Engineering The Chinese University of Hong Kong School of Materials Sun Yat-sen University

众所周知，当电流通过导体时，会产生热。虽然我们日常生活和工业中的各种应用都是利用电子导体的加热，但很少有人注意到离子导体在加热方面的潜力。这是因为“不可避免的”电化学反应，这可能导致不必要的导体电解，电极腐蚀和表面污...

众所周知，当电流通过导体时，会产生热。虽然我们日常生活和工业中的各种应用都是利用电子导体的加热，但很少有人注意到离子导体在加热方面的潜力。这是因为“不可避免的”电化学反应，这可能导致不必要的导体电解，电极腐蚀和表面污垢。本文报道了离子导体在没有电化学反应的情况下的焦耳加热。采用零相频率的电来抑制高压下离子导体的电解。用各种离子导体，液体和固体，展示了高效的能量转换，而不需要电化学反应。这种加热方法简单、直接、快速、清洁、均匀，在众多工业和家庭应用中具有巨大的潜力。

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