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Injectable Self‑healing Adhesive pH‑Responsive Hydrogels Accelerate Gastric hemostasis and Wound healing

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Nano-Micro Letters 2021年第5期13卷 118-134页

作者： Jiahui he Zixi Zhang Yutong Yang Fenggang Ren Jipeng Li Shaojun Zhu Feng Ma Rongqian Wu Yi Lv gang he Baolin Guo Dake Chu Department of Gastroenterology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anPeople’s Republic of China Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of StomatologyXi’an Jiaotong UniversityXi’an 710049People’s Republic of China Department of Dermatology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine and Surgical Engineering Research Center of Shaanxi Province First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anPeople’s Republic of China Department of Experimental Surgery Xijing HospitalFourth Military Medical UniversityXi’anPeople’s Republic of China Department of Pathology Tangdu HospitalFourth Military Medical UniversityXi’anPeople’s Republic of China

Endoscopic mucosal resection(EMR)and endoscopic submucosal dissection(ESD)are well-established therapeutics for gastrointestinal neoplasias,but complications after EMR/ESD,including bleeding and perforation,result in additional treatment morbidity and even threaten the lives of ***,designing biomaterials to treat gastric bleeding and wound healing after endoscopic treatment is highly desired and remains a ***,a series of injectable pH-responsive selfhealing adhesive hydrogels based on acryloyl-6-aminocaproic acid(AA)and AA-g-N-hydroxysuccinimide(AA-NHS)were developed,and their great potential as endoscopic sprayable bioadhesive materials to efficiently stop hemorrhage and promote the wound healing process was further demonstrated in a swine gastric hemorrhage/wound *** hydrogels showed a suitable gelation time,an autonomous and efficient self-healing capacity,hemostatic properties,and good *** the introduction of AA-NHS as a micro-cross-linker,the hydrogels exhibited enhanced adhesive strength.A swine gastric hemorrhage in vivo model demonstrated that the hydrogels showed good hemostatic performance by stopping acute arterial bleeding and preventing delayed bleeding.A gastric wound model indicated that the hydrogels showed excellent treatment effects with significantly enhanced wound healing with type I collagen deposition,α-SMA expression,and blood vessel *** injectable self-healing adhesive hydrogels exhibited great potential to treat gastric wounds after endoscopic treatment.

关键词： Injectable self-healing hydrogel Adhesive hydrogel Gastric hemostasis Gastric wound healing Endoscopic treatment

Changes of chlorogenic acid content and its synthesis-associated genes expression in Xuehua pear fruit during development

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Journal of Integrative Agriculture 2017年第2期16卷 471-477页

作者： he Jin-gang CheNG Yu-dou GUAN Jun-feng GE Wen-ya ZHAO Zhe Institute of Genetics and Physiology Hebei Academy of Agricultural and Forestry Science Shijiazhuang 050051 P.R. China Plant Genetic Engineering Center of hebei Province Shijiazhuang 050051 P.R. China

According to synthetic pathway of plant chlorogenic acid （CGA）, the expression patterns of genes encoding enzymes that are associated with CGA synthesis were studied in normally developed Xuehua pear fruit. The study demonstrated that CGA content in peel and flesh of Xuehua pear decreased as fruit development progressed, with a higher level in peel. The expression levels of PbPAL 1, PbPAL2, PbC3H, PbC4H, Pb4CL 1, Pb4CL2, Pb4CL6, PbHC T1 and PbHC T3 genes decreased in fruit, which was consistent with the pattern of variation in CGA content. That indicated that these genes might be key genes for influencing fruit CGA synthesis in Xuehua pear. However, Pb4CL7 gene expression profile is not consistent with variation of CGA content, hence, it may not be a key gene involved in CGA synthesis.

关键词： cinnamate 4-hydroxylase gene hydroxy cinnamoyl CoA shikimate/quinic acid hydroxycinnamoyl transferasegene p-coumarate 3'-hydroxylase gene 4-hydroxycinnamoyl-CoA ligase gene phenylalanine ammonia lyasegene Xuehua pear

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大型设备在本科实验教学中的应用

中国冶金教育 2024年第3期 70-71,76页

作者：高倩何刚张惠郭友敏刘艳美安徽大学材料科学与工程学院安徽合肥230601

以静电纺丝实验为例,探讨了大型设备在本科实验教学中的应用。将大型科研设备应用于本科生实验教学,不仅可以提高大型仪器设备的利用率,还可以将教师科研经验反哺教学,通过设计探索性实验内容促进学生自我教育、主动学习,培养综合能力,... 详细信息

以静电纺丝实验为例,探讨了大型设备在本科实验教学中的应用。将大型科研设备应用于本科生实验教学,不仅可以提高大型仪器设备的利用率,还可以将教师科研经验反哺教学,通过设计探索性实验内容促进学生自我教育、主动学习,培养综合能力,提升教学质量。

关键词：科教融合静电纺丝实验教学纳米纤维

A numerical and experimental study of a dual-function solar collector integrated with building in passive space heating mode

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Chinese Science Bulletin 2010年第15期55卷 1568-1573页

作者： JI Jie LUO ChengLong SUN Wei he Wei PEI gang HAN ChongWei Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230026 China

A newly designed solar collector named dual-function solar collector is *** dual-function solar collector integrated with building can perform in two different modes:working as a passive space heating collector in cold sunny days such as in winter,or working as a facade water heating collector in hot days such as in *** experimental study has been carried out to investigate the performance of the novel system in space heating mode,whilst,the dynamic numerical model has been established and *** experimental and numerical results show that during the period of the measurement from 9:00 to 17:00,the mean indoor temperature was up to 24.7°C while the mean ambient temperature was only 4.8°C,and a temperature stratification was present in the ***,a numerical study on the effect of optical property of coatings has been carried out.

关键词：太阳能集热器建筑一体化采暖方式数值模拟双功能实验被动式太阳能收集器

Persistent left superior vena cava in right hemiarch replacement under deep hypothermic circulatory arrest:A case report

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World Journal of Clinical Cases 2023年第32期11卷 7858-7864页

作者： Ze-Yu Mi gang he Hong-Li Gao Chao Li Department of Cardiac Surgery Yongchuan Hospital of Chongqing Medical UniversityChongqing 402160China Department of Ultrasound Medicine Yongchuan Hospital of Chongqing Medical UniversityChongqing 402160China

BACKGROUND Persistent left superior vena cava(PLSVC),a relatively rare thoracic vascular malformation,can inconvenience perfusionists and operators when encountered during deep hypothermic circulatory arrest(DHCA).CASE SUMMARY herein,we describe the case of a patient with concurrent giant aortic arch aneurysm,aortic stenosis,and *** treat these conditions,we performed right hemiarch and aortic valve replacements under ***,we applied“bilateral superior vena cava retrograde cerebral perfusion(RCP)”for cerebral protection,which significantly optimized the surgical procedure and reduced the risk of postoperative *** patient was discharged 14 d after surgery with no *** Surgical intervention for PLSVC under DHCA can be performed using the bilateral superior vena cava RCP approach.

关键词： Persistent left superior vena cava Aortic arch aneurysm hemiarch replacement Deep hypothermic circulatory arrest Retrograde cerebral perfusion Case report

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进口再生PET固体废物属性鉴别探讨

中国口岸科学技术 2024年第8期6卷 43-47页

作者：何坚刚万旺军王琛唐梦奇吴刚姚佳妮杭州海关技术中心杭州311215 南宁海关技术中心南宁530021

本文介绍了聚对苯二甲酸乙二酯(Polyethylene Terephthalate,PET)原料的应用、固体废物相关监管政策和再生PET的固体废物属性鉴别情况。通过对再生PET瓶片、再生PET切片和再生团粒生产工艺的分析,研究了3种再生PET物料的固体废物属性鉴... 详细信息

本文介绍了聚对苯二甲酸乙二酯(Polyethylene Terephthalate,PET)原料的应用、固体废物相关监管政策和再生PET的固体废物属性鉴别情况。通过对再生PET瓶片、再生PET切片和再生团粒生产工艺的分析,研究了3种再生PET物料的固体废物属性鉴别差异,总结了再生PET样品固体废物属性鉴别中参考的标准和考虑的主要因素,为我国企业加工和进口废旧PET物料提供了一定的参考。

关键词：聚对苯二甲酸乙二酯再生PET瓶片再生PET切片再生PET团粒固体废物属性鉴别

Resistive switching performance improvement of In GaZnO-based memory device by nitrogen plasma treatment

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Journal of Materials Science & Technology 2020年第14期47卷 1-6页

作者： Li Zhang Zhong Xu Jia Han Lei Liu Cong Ye Yi Zhou Wen Xiong Yanxin Liu gang he Faculty of Physics and Electronic Science Hubei UniversityHubei Key Laboratory of Ferro-&Piezoelectric Materials and DevicesHubei Key Laboratory of Applied MathematicsWuhan430062China School of Physics and Materials Science Radiation Detection Materials&Device LabAnhui UniversityHefei230039China School of Microelectronics Tianjin Key Laboratory of Imaging and Sensing Microelectronic TechnologyTianjin UniversityTianjin300072China

With the demand of flat panel display development,utilizing the non-volatile memory devices based on indium-gallium-zinc-oxide(IGZO)film may be integrated with IGZO thin film transistors(TFTs)to accomplish system-on-panel *** this work,1×1μm^2 via hole structure IGZO based memory device was fabricated and the resistive switching(RS)behavior was *** inserting a nitrogen doping layer IGZO:N by plasma treatment in Pt/IGZO/Ti N device,highly improved RS performance including lower forming voltage,remarkable uniformity,large memory window of 102,retention property of 10^4 s at 125℃,excellent pulse endurance of 10^7 cycles were *** X-ray photoelectron spectroscopy analysis indicates that plasma doping method can evenly dope nitrogen and induce more non-lattice oxygen in the IGZO *** is deduced that the N atoms of the inserting layer can influence the random formation of oxygen vacancy type conducting filaments,which results in more stable and uniform performance.

关键词： Memory device Resistive switching Plasma treatment Indium-gallium-zinc-oxide Memristor

Thermal Conductivity of Complex Plasmas Using Novel Evan-Gillan Approach

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Communications in Theoretical Physics 2018年第6期69卷 704-710页

作者： Aamir Shahzad Syed Irfan Haider Muhammad Kashif Muhammad Shahzad Shifa Tariq Munir Mao-gang he Molecular Modeling and Simulation Laboratory Department of PhysicsGovernment College University Faisalabad(GCUF)Allama Iqbal RoadFaisalabad 38040Pakistan Key Laboratory of Thermo-Fluid Science and Engineering Ministry of Education(MOE)Xi'an Jiaotong UniversityXi'an 710049China

The thermal conductivity of complex fluid materials （dusty plasmas） has been explored through novel Evan-Gillan homogeneous non-equilibrium molecular dynamic （HNEMD） algorithm. The thermal conductivity coefficient obtained from HNEMD is dependent on various plasma parameters （T,k）. The proposed algorithm gives accurate results with fast convergence and small size effect over a wide range of plasma parameters. The cross microscopic heat energy current is discussed in association with variation of temperature （1/Г） and external perturbations （Pz）. The thermal conductivity obtained from HNEMD simulations is found to be very good agreement and more reliable than previously known numerical techniques of equilibrium molecular dynarnic, nonequilibrium molecular dynamic simulations. Our new investigations point to an effective conclusion that the thermal conductivity of complex dusty plasmas is dependent on an extensive range of plasma coupling （P） and screening parameter （k） and it varies by the alteration in these parameters. It is also shown that a different approach is used for computations of thermal conductivity in 2D complex plasmas and can be appropriate method for behaviors of complex systems.

关键词： complex dusty plasma homogenous nonequilibrium molecular dynamics canonical ensemble scaling law thermal conductivity Yukawa liquids

Illumination interface stability of aging-diffusion-modulated high performance InZnO/DyO_(x) transistors and exploration in digital circuits

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Journal of Materials Science & Technology 2021年第28期87卷 143-154页

作者： Bing Yang gang he Qian Gao Wenhao Wang Yongchun Zhang Yufeng Xia Xiaofen Xu Leini Wang Miao Zhang School of Physics and Materials Science Radiation Detection Materials&Devices LabAnhui UniversityHefei230601China Institute of Physical Science and Information Technology Anhui UniversityHefei230601China School of Mechanical Engineering Anhui Vocational and Technical CollegeHefei230011China

In current study,the rare-reported solution-driven DyO_(x)films have been prepared to act as the dielectric layer of high performance InZnO/DyO_(x)thin film transistors(TFTs).Annealing temperature dependent thermal decomposition,morphology,crystallization behavior,and chemical compositions of DyO_(x) and InZnO films have been investigated *** have demonstrated that air-annealed InZnO/DyO_(x)TFTs possess the improved electrical performance,including ultrahigh on/off current ratio of 1×10^(9),larger saturation mobility of 12.6 cm^(2) V-1 s^(-1) and negligible hysteresis after 10 d aging diffusion in the relative humidity(RH)of 40%air ambient,which has been explored by the variable range-hopping(VRH)percolation model and energy band *** distinct illumination bias stability can be attributed to the generated various interface defects and concluded that the white light illuminated TFT behaves the higher stability with the smaller threshold voltage shift of 0.25 *** confirm its feasible application in digital circuit,a resistor-loaded inverter based on InZnO/DyO_(x)TFTs has been constructed.A high gain of 10.1 and good dynamic response behavior have been detected at a low operating voltage of 2 *** a result,it can be inferred that diffusion-induced enhanced carrier transporting mechanism is an economical and effective method to optimize the electrical performance of solution-derived InZnO/DyO_(x)TFTs,indicating its potential application prospects in flexible transparent electronics with low power consumption.

关键词： Dysprosium oxide(DyO_(x)) Thin film transistors(TFTs) Aging-diffusion Inverter Illumination bias stability