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Nanodroplet-mediated catheter-directed sonothrombolysis of retracted blood clots

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Microsystems & Nanoengineering 2021年第1期7卷 77-83页

作者： Leela Goel Huaiyu Wu Bohua Zhang Jinwook Kim Paul A.Dayton Zhen Xu xiaoning jiang Department of Mechanical&Aerospace Engineering North Carolina State UniversityRaleighNC 27695USA The Joint Department of Biomedical Engineering The University of North Carolina at Chapel Hill and North Carolina State UniversityChapel HillNC 27599USA Department of Biomedical Engineering University of MichiganAnn ArborMI 48109USA

One major challenge in current microbubble(MB)and tissue plasminogen activator(tPA)-mediated sonothrombolysis techniques is effectively treating retracted blood clots,owing to the high density and low porosity of retracted ***(NDs)have the potential to enhance retracted clot lysis owing to their small size and ability to penetrate into retracted clots to enhance drug *** the first time,we demonstrate that a sub-megahertz,forwardviewing intravascular(FVI)transducer can be used for ND-mediated sonothrombolysis,in *** this study,we determined the minimum peak negative pressure to induce cavitation with low-boiling point phase change nanodroplets and clot *** then compared nanodroplet mediated sonothrombolysis to MB and tPA mediate *** clot lysis as a percent mass decrease in retracted clots was 9±8%,9±5%,16±5%,14±9%,17±9%,30±8%,and 40±9%for the control group,tPA alone,tPA+US,MB+US,MB+tPA+US,ND+US,and ND+tPA+US groups,*** retracted blood clots,combined ND-and tPA-mediated sonothrombolysis was able to significantly enhance retracted clot lysis compared with traditional MB and tPA-mediated sonothrombolysis *** nanodroplet with tPA-mediated sonothrombolysis may provide a feasible strategy for safely treating retracted clots.

关键词： thrombolysis directed boiling

New black-to-white hole solutions with improved geometry and energy conditions

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 30-43页

作者： Zhongwen Feng Yi Ling xiaoning Wu Qingquan jiang School of Physics and Astronomy China West Normal UniversityNanchong 637009China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China School of Physics University of Chinese Academy of SciencesBeijing 100049China Institute of Mathematics Academy of Mathematics and System Science and Hua Loo-Keng Key Laboratory of MathematicsChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100190China

We construct new black-to-white hole solutions which connect the geometry of spacetime at some gluing surface inside the *** continuity of the metric can be guaranteed up to the arbitrary order which is controlled by the power factor *** sort of black-to-white holes is characterized by the sub-Planckian scalar curvature,independent of the mass of black-to-white *** importantly,we show that the energy condition is only violated within a small region near the gluing *** geodesics of particles within the region from black hole to white hole is also *** turns out that the matter falling into the black hole may pass through the center without singularity and come out from the white *** scenario provides novel ideas for understanding the information loss paradox in traditional black hole physics.

关键词： regular black hole energy condition singularity quantum gravity

新型结构加固用灌浆料回弹测强曲线制定试验研究

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四川建筑科学研究 2024年第3期50卷 39-45页

作者：蒋晓宁黄鑫李玲娇甘立刚徐咏四川省建研全固建筑新技术工程有限公司四川成都610081 四川省建筑科学研究院有限公司四川成都610081 西华大学建筑与土木工程学院四川成都610039

采用新型结构加固用灌浆料制作了边长为150 mm的立方体试块,分别采用HT225-A普通回弹仪和HT450-A高强回弹仪进行了回弹试验,并对试块进行了抗压强度试验。对新型结构加固用灌浆料是否适用《回弹法检测水泥基灌浆材料抗压强度技术规程》(... 详细信息

采用新型结构加固用灌浆料制作了边长为150 mm的立方体试块,分别采用HT225-A普通回弹仪和HT450-A高强回弹仪进行了回弹试验,并对试块进行了抗压强度试验。对新型结构加固用灌浆料是否适用《回弹法检测水泥基灌浆材料抗压强度技术规程》(T/CECS 801—2021)的测强曲线进行了验证。试验结果表明:新型结构加固用灌浆料不适用于《回弹法检测水泥基灌浆材料抗压强度技术规程》(T/CECS 801—2021)的测强曲线。基于最小二乘法原理,分别采用幂函数、线性函数、指数函数、抛物线函数的表达式,对新型结构加固用灌浆料普通回弹和高强回弹的试验数据进行了回归分析,对比了回归公式的相关性系数、强度平均相对误差和强度相对标准差,确定了精度较高的测强曲线。

关键词：结构加固灌浆料回弹法抗压强度

Defect Engineering and Carbon Supporting to Achieve Ni‑Doped CoP_(3) with High Catalytic Activities for Overall Water Splitting

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Nano-Micro Letters 2024年第11期16卷 569-584页

作者： Daowei Zha Ruoxing Wang Shijun Tian Zhong‑Jie jiang Zejun Xu Chu Qin xiaoning Tian Zhongqing jiang Department of Physics Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China Department of Materials and Chemical Engineering Ningbo University of TechnologyNingbo 315211People’s Republic of China Guangzhou Key Laboratory for Surface Chemistry of Energy Materials Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsCollege of Environment and EnergySouth China University of TechnologyGuangzhou 510006People’s Republic of China

This work reports the use of defect engineering and carbon supporting to achieve metal-doped phosphides with high activities and stabilities for the hydrogen evolution reaction(HER)and the oxygen evolution reaction(OER)in alkaline ***,the nitrogen-doped carbon nanofiber-supported Ni-doped CoP_(3) with rich P defects(Pv·)on the carbon cloth(p-NiCoP/NCFs@CC)is synthesized through a plasma-assisted phosphorization *** p-NiCoP/NCFs@CC is an efficient and stable catalyst for the HER and the *** only needs overpotentials of 107 and 306 mV to drive 100 mA cm^(-2) for the HER and the OER,*** catalytic activities are higher than those of other catalysts reported *** high activities of the p-NiCoP/NCFs@CC mainly arise from its peculiar structural *** density functional theory calculation indicates that the Pv·richness,the Ni doping,and the carbon supporting can optimize the adsorption of the H atoms at the catalyst surface and promote the strong electronic couplings between the carbon nanofiber-supported p-NiCoP with the surface oxide layer formed during the OER *** gives the p-NiCoP/NCFs@CC with the high activities for the HER and the *** used in alkaline water electrolyzers,the p-NiCoP/NCFs@CC shows the superior activity and excellent stability for overall water splitting.

关键词： Plasma Electrocatalysis Hydrogen evolution reaction Oxygen evolution reaction Water splitting

In situ fabrication of organic electrochemical transistors on a microfluidic chip

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Nano Research 2019年第8期12卷 1943-1951页

作者： Jianlong Ji Mangmang Li Zhaowei Chen Hongwang Wang xiaoning jiang Kai Zhuo Ying Liu Xing Yang Zhen Gu Shengbo Sang Yang Shu College of Information and Computer Taiyuan University of TechnologyTaiyuan 030024China Department of Mechanical and Aerospace Engineering North Carolina State University Raleigh 27695USA Department of Bioengineering California Nanosystems Institute University of CaliforniaLos AngelesLos Angeles 90095USA The State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing 100084China Department of Chemistry Colleges of SciencesNortheastern UniversityShenyang 110819China

Microfluid chips integrating with organic electrochemical transistors (OECTs) are useful for manufacturing biosensors with high throughput and large-scale analyses. We report here the utilization of alternating current (AC) electrodeposition to fabricate OECTs in situ on a microfiuid chip. With this method, the organic semiconductor (OS) layer with a channel length of 8μm was readily prepared without requiring the postbonding process in the conventional construction of microfluidic chips. Poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate)/graphene quantum dots (PEDOT:PSS/GQDs) composites with different morphologies, such as microfilms, nanodendrites and nanowires were electropolymerized. The mass transfer process of the electropolymerization reaction was evidenced to be diffusion limited. Morphologies, growth directions, and chemical structures of OS layers could be tuned by the amplitude and the frequency of the AC voltage. Transfer and output characteristic curves of OECTs were measured on the microfluidic chip. The maximum transconductance, on/off current ratio and threshold voltage measured in the experiment was 1.58 mS, 246, and 0.120 V, respectively.

关键词： electrodeposition in situ microfluidic chip PEDOT:PSS/GQDs composite transistor

Pulse electrochemical synaptic transistor for supersensitive and ultrafast biosensors

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InfoMat 2023年第11期5卷 25-39页

作者： Jianlong Ji Zhenxing Wang Fan Zhang Bin Wang Yan Niu xiaoning jiang Zeng-ying Qiao Tian-ling Ren Wendong Zhang Shengbo Sang Zhengdong Cheng Qijun Sun College of Electronics Information and Optical Engineering Taiyuan University of TechnologyTaiyuanthe People’s Republic of China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijingthe People’s Republic of China Department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleighNorth CarolinaUSA D Artificial Intelligence Biomedical Research Institute Taiyuanthe People’s Republic of China CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology(NCNST)Beijingthe People’s Republic of China Institute of Microelectronics Tsinghua UniversityBeijingthe People’s Republic of China College of Chemical and Biological Engineering Zhejiang UniversityHangzhouthe People’s Republic of China

High sensitivity and fast response are the figures of merit for benchmarking commercial *** to the advantages of intrinsic signal amplification,bionic ability,and mechanical flexibility,electrochemical transistors(ECTs)have recently gained increasing popularity in constructing various *** the current work,we have proposed a pulse-driven synaptic ECT for supersensitive and ultrafast *** pulsing the presynaptic input(drain bias,VD)and setting the modulation potential(gate bias)near transconductance intersection(VG,i),the synaptic ECT-based pH sensor can achieve a record high sensitivity up to 124 mV pH^(-1)(almost twice the Nernstian limit,59.2 mV pH^(-1))and an ultrafast response time as low as 8.75 ms(7169 times faster than the potentiostatic sensors,62.73 s).The proposed synaptic sensing strategy can effectively eliminate the transconductance fluctuation issue during the calibration process of the pH sensor and significantly reduce power ***,the most sensitive working point at VG,i has been elaborately figured out through a series of detailed mathematical derivations,which is of great significance to provide higher sensitivity with quasi-nonfluctuating amplification *** proposed electrochemical synaptic transistor paired with an optimized operating gate offers a new paradigm for standardizing and commercializing high-performance biosensors.

关键词： fast response pH sensor pulse electrochemical transistor supersensitive synaptic transistor

A tetraaldehyde-derived porous organic cage and covalent organic frameworks:Syntheses,structures,and iodine vapor capture

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Chinese Chemical Letters 2024年第9期35卷 426-431页

作者： Xinyi Cao Yucheng Jin Hailong Wang Xu Ding Xiaolin Liu Baoqiu Yu xiaoning Zhan Jianzhuang jiang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline MaterialsDepartment of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Dynamic covalent imine reactions between 2,3-dimethoxy-[1,1:4,1-terphenyl]-3,3,5,5-tetracarbaldehyde(DMTT)and cyclohexanediamine,p-phenylenediamine,and benzidine,respectively,generate a porous organic cage(DMPOC)and two covalent organic frameworks(COFs),USTB-29,and *** shows a[3+6]topological cage-like structure according to single crystal X-ray diffraction *** contrast,both microcrystalline USTB-29 and USTB-30 exhibit two-dimensional monoporous structures in an eclipsed AA stacking style based on powder X-ray diffraction and theoretical *** addition,DMPOC is capable of efficiently absorbing the iodine vapor with an outstanding uptake of 5.10 g/g,much higher than that of USTB-29(3.07 g/g)and USTB-30(3.16 g/g).Cage to COFs transformations have been realized from DMPOC to USTB-29 and USTB-30 via the imine bond exchange with slightly increased iodine vapor *** investigations uncover that both nitrogen and oxygen atoms of POC and COFs contribute to iodine vapor capture due to the formation of charge transfer matter,and loose interaction introducing adaptive expanding voids of DMPOC is suggested to capture more iodine vapor than that of COFs with strongπ-πinteractions.

关键词： Porous organic cage Crystal structure Covalent organic framework Transformation Iodine vapor adsorption

Flexoelectricity in dielectrics:Materials,structures and characterizations

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Journal of Advanced Dielectrics 2018年第2期8卷 11-21页

作者： Shujin Huang Lu Qi Wenbin Huang Longlong Shu Shenjie Zhou xiaoning jiang Mechanial and Aerospace Engineering North Carolina State UniversityRaleighNC 27695USA School of Mechanical Engineering Shandong UniversityJinanShandong 250100P.R.China School of Mechanical Engineering Chongqing UniversityChongqing 400044P.R.China School of Materials Science and Engineering Nanchang UniversityNanchang 330000P.R.China

Flexoelectricity in dielectrics suggests promising smart structures for sensors,actuators and *** this review,dielectric materials,structures and the associated flexoelectric characterization methods are *** of all,we review structures and methods to measure different flexoelectric coefficients,includingμ1122;μ1111;μ1211;μ3121;μ2312;μ1123,etc.,via direct or converse flexoelectric *** flexoelectric materials in the form of bulk,thin films and 2D materials and the reported flexoelectric properties of these dielectrics will then be *** materials and the associated flexoelectric studies will also be *** progress of flexoelectric device study will next be presented,followed by the flexoelectricity research challenges and future trend.

关键词： Flexoelectricity dielectrics semiconductor thermal dependence health monitoring

Emergent ultra-high temperature ferromagnetism in La_(2)CoO_(4±x) thin films

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Nano Research 2024年第8期17卷 7250-7255页

作者： Ziang Meng Han Yan Peixin Qin Zhuo Yin Peiheng jiang Xiaorong Zhou xiaoning Wang Hongyu Chen Li Liu Zhiyuan Duan Guojian Zhao Weisheng Zhao Fengxia Hu Qinghua Zhang Zhicheng Zhong Zhiqi Liu School of Materials Science and Engineering Beihang UniversityBeijing 100191China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Fert Beijing Institute School of Integrated Circuit Science and EngineeringBeihang UniversityBeijing 100191China

Searching for novel ferromagnetic oxides with high Curie temperature(TC)has been one of the main goals for oxide *** well-known perovskite cobaltate LaCoO_(3) is a classical ferromagnet in its thin-film form;however,it suffers from a low TC(~85 K).Here we report a new type of ferromagnetic La-Co-O films with an ultrahigh TC of~820 *** are fabricated by pulsed laser deposition from a LaCoO_(3) target at low oxygen partial *** structural analysis indicates that they crystallize in terms of the Ruddlesden–Popper phase of La_(2)CoO_(4±x).In sharp contrast to the antiferromagnetism of bulk La_(2)CoO_(4),the strong ferromagnetism in the La_(2)CoO_(4±x) thin films is firmly demonstrated by magnetometry measurements,X-ray magnetic circular dichroism characterization,and magnetotransport *** importantly,density functional theory calculations indicate that the nonstoichiometric oxygen induces an antiferromagnetic-to-ferromagnetic phase transition,accompanied by the orbital reconstruction of Co 3d ***,our study provides an attractive strategy for designing or synthesizing exotic magnetic oxides with high ordering temperatures.

关键词： ferromagnetic oxides ultra-high Curie temperature La_(2)CoO_(4) spin current transport oxygen engineering