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Optical and electrical anisotropy regulation engineering of low-dimensional materials toward polarized detection and imaging applications

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Rare Metals 2024年第7期43卷 2968-2993页

作者： jian-Bin Zhang Nan Zhou li-Hui Zhang Cong-Hui Shang jia-xuan li Yi Zhao Guo-Hui jia Ru-Sen Yang Hua Xu Xiao-Bo li Shaanxi Joint Key Laboratory of Graphene Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for AerospaceShaanxi Joint Key Laboratory of GrapheneSchool of Advanced Materials and NanotechnologyXidian UniversityXi'an710126China Guangzhou Institute of Technology Xidian UniversityGuangzhou 710068China Xi'an Thermal Power Research Institute Co. LtdXi'an 710054China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an Xi'an 710119China

Polarized-sensitive image sensors are a kind of photodetector with great development potential due to their enhanced ability to detect and identify the target objects from the aspect of spatial,spectral and polarized ***,low-dimensional anisotropic materials with inherent anisotropic properties,ultrathin thickness,tunable bandgap and feasible integration with complementary metal oxide semiconductor(CMOS)fabrication processes have attracted great interest for their facilitation of polarized photodetector devices *** the polarized detection performance of low-dimensional materials to satisfy realistic needs stimulates the exploration of modulation of anisotropic *** this review,we comprehensively introduce the latest research progress in modulating the optical and optoelectronic anisotropy characteristics of low-dimensional *** strategy of anisotropy regulation through crystal structure engineering and coupling system is discussed ***,the latest progress in image recognition applications using anisotropic low-dimensional materials is reviewed in ***,we summarize the challenge and propose future opportunities in the practical application of polarized-sensitive imaging photodetectors based on low-dimensional anisotropic materials.

关键词： Anisotropy Polarized detection Image recognition Low-dimensional materials

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Rauwolfia vomitoria extract suppresses benign prostatic hyperplasia by reducing expression of androgen receptor and 5a-reductase in a rat model

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Journal of Integrative Medicine 2021年第3期19卷 258-264页

作者： Tian Fang Ze-sheng Xue jia-xuan li jia-kuan liu Di Wu Mei-qian li Yu-ting Song Shi-feng Yun Jun Yan Department of Comparative Medicine Jinling HospitalNanjing University School of MedicineNanjing 210002Jiangsu ProvinceChina Center for Veterinary Drug Research and Evaluation College of Veterinary MedicineNanjing Agricultural UniversityNanjing 210095Jiangsu ProvinceChina Model Animal Research Center of Nanjing University Nanjing 210061Jiangsu ProvinceChina Department of Laboratory Animal Science Fudan UniversityShanghai 200032China Ministry of Education Key Laboratory of Model Animals for Disease Study Model Animal Research Center of Nanjing UniversityNanjing 210061Jiangsu ProvinceChina Department of Information Jinling HospitalNanjing University School of MedicineNanjing 210002Jiangsu ProvinceChina

Objective:Herbal medicine is an important therapeutic option for benign prostatic hyperplasia(BPH),a common disease in older men that can seriously affect their quality of ***,it is crucial to develop agents with strong efficacy and few side *** we investigated the effects of the extract of Rauwolfia vomitoria,a shrub grown in West Africa,on ***:Rats with testosterone-induced BPH were treated with *** were histologically analyzed by Hematoxylin and eosin *** index and the expression levels of androgen receptor and its associated proteins were quantified through immunohistochemistry and *** receptor target genes were examined by quantitative real-time polymerase chain *** sperm count and body weight of rats were also ***:The oral administration of *** extract significantly reduced the prostate weight and prostate weight index in BPH rats,supported by the decreased thickness of the prostate epithelial layer and increased lumen *** effects were observed in the BPH rats treated with the reference drug,*** extract significantly reduced the testosterone-induced proliferation markers,including proliferating cell nuclear antigen and cyclin D1,in the prostate glands of BPH rats;it also reduced levels of androgen receptor,its associated protein steroid 5 a-reductase 1 and its downstream target genes(FK506-binding protein 5 and matrix metalloproteinase 2).Notably,compared with the finasteride group,*** extract did not significantly reduce sperm ***:*** suppresses testosterone-induced BPH *** to its milder side effects,*** could be a promising therapeutic agent for BPH.

关键词： Benign prostatic hyperplasia Rat model Herbal extract Androgen receptor Rauwolfia vomitoria

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Robust Poly(glycolic acid) Films with Crystal Orientation and Reinforcement of Chain Entanglement Network

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Chinese Journal of Polymer Science 2023年第7期41卷 1093-1103页

作者： De-Yu Niu Peng-Wu Xu Si-Jie Xu jia-xuan li Wei-Jun Yang Pi-Ming Ma The Key Laboratory of Synthetic and Biological Colloids Ministry of EducationJiangnan UniversityWuxi214122China

The inherent brittleness of biodegradable poly(glycolic acid) (PGA) restricts its utilization in the packaging field. Traditional toughening methods usually require additional components accompanied by a sacrifice of strength. In the present work, PGA films with simultaneously enhanced strength and ductility are achieved via “casting-stretching-annealing” technology. The reinforced chain entanglement network of PGA induced by the intense extensional stress and the highly oriented crystals grown and refined during the stretching and annealing process endowed the improved ductility and strength of the PGA films, respectively. The relationships among the stretching process, microstructure and mechanical properties of the PGA films have been systematically investigated. As a result, the PGA film (SA-2) with low stretch ratios exhibits excellent ductility with an increase in elongation at break from 22% to 220% and tensile strength from 56 MPa to 130 MPa. Meanwhile, the PGA film (SA-4) with large stretch ratios features much higher tensile strength (335 MPa) while maintaining good ductility (elongation at break of 66%). In addition, highly oriented crystals result in obvious enhancement of heat resistance and dimensional stability of the PGA films. Therefore, this work provides an effective route to fabricate PGA films with both high strength and ductility which may promote the application of PGA materials.

关键词： Poly(glycolic acid) Uniaxial stretching Ductility Strength

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Improvement on the Mechanical Performance and Resistance Towards Hydrolysis of Poly(glycolic acid)via Solid-state Drawing

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Chinese Journal of Polymer Science 2023年第1期41卷 14-23页

作者： jia-xuan li De-Yu Niu Bo liu Peng-Wu Xu Wei-Jun Yang Pieter Jan Lemstra Pi-Ming Ma The Key Laboratory of Synthetic and Biological Colloids Ministry of EducationJiangnan UniversityWuxi214122China PlemPolco B.V. Roek 245508 KEVeldhoventhe Netherlands

Poly(glycolic acid)is a biocompatible as well as biocomposable polymer with superior mechanical and barrier properties and,consequently,has found important applications in both medical and packaging ***,the high hydrolysis rate in a high humidity environment restricts its *** this work,a solid-state drawing process after melt extrusion is applied in order to produce fibrous PGA with enhanced mechanical properties and a much better resistance towards *** crystal structure of PGA gradually transformed from spherulites into oriented fibrous crystals in the stretching direction upon solid-state ***,both the length of microfibril and the size of lamellae increased initially with the drawing ratio(DR),while the chain-folded lamellae transformed into extended-chain fibrils at high(er)*** oriented structures lead to an overall improvement of the mechanical properties of PGA,e.g.,the tensile strength increased from 62.0±1.4 MPa to 910±54 MPa and the elongation at break increased from around 7%to 50%.Meanwhile,the heat capacity of totally mobile amorphous PGA(∆C_(p)^(0)=0.64 J·g^(−1)·℃^(−1))was reported for the first time,which was used to analyze the content of mobile amorphous fraction(XMAF)and rigid amorphous fraction(XRAF).Both the oriented chain-folded lamellae crystals and the tightly arranged RAF are beneficial to prevent water molecules from penetrating the matrix,thus improving the resistance towards *** a consequence,the fibrous PGA with a DR of 5 showed a tensile strength retention rate of 17.3%higher in comparison with the undrawn sample after 7-days accelerated ***,this work provides a feasible method to improve the mechanical and resistance towards hydrolysis performance of PGA,which may broaden its application and prolong the shelf-life of PGA products.

关键词： Poly(glycolic acid) Solid-state drawing Fibrous crystal Mechanical property Hydrolysis resistance

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Tailoring the Crystallization Behavior and Mechanical Property of Poly(glycolic acid) by Self-nucleation

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Chinese Journal of Polymer Science 2022年第4期40卷 365-372页

作者： jia-xuan li De-Yu Niu Peng-Wu Xu Zhao-Yang Sun Wei-Jun Yang Yang Ji Pi-Ming Ma The Key Laboratory of Synthetic and Biological Colloids Ministry of EducationJiangnan UniversityWuxi 214122China Inner Mongolia Pujing Polymer Material Technology Corporation Ltd. Baotou 014060China

Biocompostable poly(glycolic acid)(PGA)crystallizes slowly under fast cooling condition,leading to poor mechanical performance of the final *** this work,a self-nucleation(SN)route was carried out to promote the crystallization of PGA by regulating only the thermal procedure without any extra nucleating *** self-nucleation temperature(Ts)decreased from 250℃ to 227℃,the nuclei density was increased,and the non-isothermal crystallization temperature(Tc)of PGA was increased from 156℃ to 197℃ and the half-life time(t0.5)of isothermal crystallization at 207℃ was decreased by 89%.Consequently,the tensile strength and the elongation at break of the PGA were increased by 12%and 189%,*** to the change of Tc as a function of Ts,a three-stage temperature domain map(Domain I,II and III)was protracted and the viscoelastic behavior of the self-nucleation melt and the homogeneous melt was *** results indicated that interaction among PGA chains was remained in Domain IIb,which can act as pre-ordered structure to accelerate the overall crystallization *** work utilizes a simple and effective SN method to regulate the crystallization behavior and the mechanical properties of PGA,which may broaden the application range of resulting materials.

关键词： Poly(glycolic acid) Self-nucleation Crystallization kinetics Mechanical property

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Observation of mother-perpetrated infanticide in golden takins(Budorcas taxicolor bedfordi)

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Zoological Research 2020年第4期41卷 455-457页

作者： Hai-Tao Zhao Wen-Qing Zhang Kang-Sheng jia jia-xuan li Xu-Xiang Bai Xiao-Wei Wang Song-Tao Guo Shu-Jun He Hong-Juan Sun Ying-Hu Lei Ru liang Pan Bao-Guo li Shaanxi Key Laboratory for Animal Conservation Shaanxi Institute of ZoologyXi'anShaanxi 710032 China College of life Sciences Northwest UniversityXianShaanxi 710069China Shaanxi Broadcasting Corporation Xi'anShaanxi 710061China Research Center of Qinling Giant Panda Shaanxi Academy of ForestryXi'anShaanxi 710402China University of California Davis Davis 95616USA Internationa/Centre of Biodiversity and Primate ConservationCentre Dali UniversityDaliYunnan 671000China School of Human Sciences University of Western AustraliaPerthWA 6009Australia Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingYunnan 650223China

DEAR EDITOR,Infanticide by unrelated individuals is widely reported in the animal kingdom;however,little is known about cases perpetrated by a parent,particularly the *** article reports on three cases of mother-initiated infanticide in Qinling golden takins(Budorcas taxicolor bedfordi)from video and camera *** on previous reports in other animals,we propose that the infanticide events observed in golden takins were related to the parental manipulation mechanism-i.e.

关键词： EDIT mother individual

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Global trends in publications regarding macrophages-related diabetic foot ulcers in the last two decades

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World Journal of Diabetes 2024年第7期15卷 1627-1644页

作者： jian-Ping Wen Shuan-Ji Ou jia-Bao liu Wei Zhang Yu-Dun Qu jia-xuan li Chang-liang Xia Yang Yang Yong Qi Chang-Peng Xu Department of Orthopaedics The Affiliated Guangdong Second Provincial General Hospital of Jinan UniversityGuangzhou 510000Guangdong ProvinceChina The Second School of Clinical Medicine Southern Medical UniversityGuangzhou 510000Guangdong ProvinceChina

BACKGROUND Diabetic foot ulcers(DFUs)are one of the most severe and popular complications of *** persistent non-healing of DFUs is the leading cause of amputation,which causes significant mental and financial stress to patients and their *** are critical cells in wound healing and perform essential roles in all phases of wound ***,no studies have been carried out to systematically illustrate this area from a scientometric point of *** there have been some bibliometric studies on diabetes,reports focusing on the investigation of macrophages in DFUs are *** To perform a bibliometric analysis to systematically assess the current state of research on macrophage-related *** The publications of macrophage-related DFUs from January 1,2004,to December 31,2023,were retrieved from the Web of Science Core Collection on January 9,*** different analytical tools:VOSviewer(v1.6.19),CiteSpace(v6.2.R4),HistCite(v12.03.07),and Excel 2021 were used for the scientometric *** A total of 330 articles on macrophage-related DFUs were *** most published countries,institutions,journals,and authors in this field were China,Shanghai jiao Tong University of China,Wound Repair and Regeneration,and Aristidis *** the analysis of keyword co-occurrence networks,historical direct citation networks,thematic maps,and trend topics maps,we synthesized the prevailing research hotspots and emerging trends in this *** Our bibliometric analysis provides a comprehensive overview of macrophage-related DFUs research and insights into promising upcoming research.

关键词： Diabetic foot ulcers Macrophage Macrophage polarization Bibliometrics Wound healing Inflammation

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Cell polarization in ischemic stroke: molecular mechanisms and advances

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Neural Regeneration Research 2025年第3期20卷 632-645页

作者： Yuanwei li Xiaoxiao Xu xuan Wu jiarui li Shiling Chen Danyang Chen Gaigai li Zhouping Tang Department of Neurology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

Ischemic stroke is a cerebrovascular disease associated with high mortality and disability rates. Since the inflammation and immune response play a central role in driving ischemic damage, it becomes essential to modulate excessive inflammatory reactions to promote cell survival and facilitate tissue repair around the injury site. Various cell types are involved in the inflammatory response, including microglia, astrocytes, and neutrophils, each exhibiting distinct phenotypic profiles upon stimulation. They display either proinflammatory or anti-inflammatory states, a phenomenon known as ‘cell polarization.’ There are two cell polarization therapy strategies. The first involves inducing cells into a neuroprotective phenotype in vitro, then reintroducing them autologously. The second approach utilizes small molecular substances to directly affect cells in vivo. In this review, we elucidate the polarization dynamics of the three reactive cell populations(microglia, astrocytes, and neutrophils) in the context of ischemic stroke, and provide a comprehensive summary of the molecular mechanisms involved in their phenotypic switching. By unraveling the complexity of cell polarization, we hope to offer insights for future research on neuroinflammation and novel therapeutic strategies for ischemic stroke.

关键词： astrocyte polarization immune regulation inflammation ischemic injury microglia polarization neutrophil polarization signaling pathways stroke

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考虑多参考点的基于前景随机占优准则的随机多属性决策

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系统工程理论与实践 2018年第5期38卷 1217-1226页

作者：陈晓红贾轩李喜华中南大学商学院长沙410083 湖南商学院大数据与互联网创新研究院长沙410205

针对随机多属性决策问题,考虑决策者心理行为,提出一种基于多参考点的前景随机占优多属性决策方法.首先,以决策者属性期望作为参考点,根据累积前景理论将决策矩阵转化为损益矩阵.其次,依据前景随机占优准则构建前景随机占优关系矩阵,进... 详细信息

针对随机多属性决策问题,考虑决策者心理行为,提出一种基于多参考点的前景随机占优多属性决策方法.首先,以决策者属性期望作为参考点,根据累积前景理论将决策矩阵转化为损益矩阵.其次,依据前景随机占优准则构建前景随机占优关系矩阵,进而得到前景随机占优度矩阵.进一步,考虑属性相关关系,运用模糊测度得到方案综合占优度矩阵,并运用PROMETHEE Ⅱ方法对方案进行排序.最后,案例分析验证了该方法的可行性和有效性.

关键词：随机多属性决策心理行为参考点前景随机占优 PROMETHEEⅡ

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Enhanced post-combustion CO2 capture and direct air capture by plasma surface functionalization of graphene adsorbent

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Journal of Energy Chemistry 2025年第1期100卷 653-664页

作者： Rahul Navik Eryu Wang Xiao Ding Huang Yunyi Yiyu liu jia li Guangdong-Hong Kong Joint Laboratory for Carbon Neutrality Jiangmen Laboratory of Carbon and Science and Technology Guangzhou HKUST Fok Ying Tung Research Institute The Hong Kong University of Science and Technology (Guangzhou) Carbon Neutrality and Climate Change Thrust Society Hub The Hong Kong University of Science and Technology (Guangzhou) Stoddart Institute of Molecular Science Department of Chemistry Zhejiang University

Graphene has enormous potential to capture CO2due to its unique properties and ***,graphene-based adsorbents have drawbacks of lower CO2adsorption capacity and poor *** work demonstrates a one-step rapid and sustainable N2/H2plasma treatment process to prepare graphene-based sorbent material with enhanced CO2adsorption *** treatment directly enriches amine species,increases surface area,and improves textural *** CO2adsorption capacity increases from 1.6 to 3.3 mmol/g for capturing flue gas,and from 0.14 to 1.3 mmol/g for direct air capture （DAC）.Importantly,the electrothermal property of the plasma-modified aerogels has been significantly improved,resulting in faster heating rates and significantly reducing energy consumption compared to conventional external heating for regeneration of *** aerogels display improved selectivity of 42 and 87 after plasma modification for 5 and 10 min,*** plasma-treated aerogels display minimal loss between 17%and 19% in capacity after 40 adsorption/desorption cycles,rendering excellent *** N2/H2plasma treatment of adsorbent materials would lower energy expenses and prevent negative effects on the global economy caused by climate change.

关键词： Carbon neutrality CO 2 capture Climate change Plasma treatment Graphene aerogel

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