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Nano-Micro Letters 2025年第3期17卷 102-116页

作者： Xin Tang Hongsheng Jiang Zhengliang Lin Xuan wang Wenliang wang Guoqiang Li State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Department of Electronic Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640People’s Republic of China

van der Waals(vdW)heterostructures constructed by lowdimensional(0D,1D,and 2D)materials are emerging as one of the most appealing systems in next-generation flexible ***,hand-stacked vdW-type photodetectors are not compatible with large-areaarray fabrication and show unimpressive performance in self-powered ***,vertical 1D GaN nanorods arrays(NRAs)/2D MoS_(2)/PEDOT:PSS in wafer scale have been proposed for self-powered flexible photodetectors arrays *** as-integrated device without external bias under weak UV illumination exhibits a competitive responsivity of 1.47 A W^(−1)and a high detectivity of 1.2×10^(11)Jones,as well as a fast response speed of 54/71μs,thanks to the strong light absorption of GaN NRAs and the efficient photogenerated carrier separation in type-II ***,the strain-tunable photodetection performances of device have been ***,the device at−0.78%strain and zero bias reveals a significantly enhanced photoresponse with a responsivity of 2.47 A W^(−1),a detectivity of 2.6×10^(11)Jones,and response times of 40/45μs,which are superior to the state-of-the-art self-powered flexible *** work presents a valuable avenue to prepare tunable vdWs heterostructures for self-powered flexible photodetection,which performs well in flexible sensors.

关键词： Vertical nanorod arrays van der Waals heterostructure Piezophototronic effect Self-powered photodetection Flexible sensors

Silk damping in scalar-induced gravitational waves: a novel probe for new physics

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 79-85页

作者： Yan-Heng Yu Sai wang Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences School of Physics University of Chinese Academy of Sciences

Silk damping is well known in the study of cosmic microwave background（CMB） and accounts for suppression of the angular power spectrum of CMB on large angular multipoles. In this article, we study the effect of Silk damping on the scalar-induced gravitational waves（SIGWs）. Resulting from the dissipation of cosmic fluid, the Silk damping notably suppresses the energydensity spectrum of SIGWs on scales comparable to a diffusion scale at the decoupling time of weakly-interacting particles. The effect offers a novel observable for probing the underlying particle interaction, especially for those mediated by heavy gauge bosons beyond the standard model of particles. We anticipate that pulsar timing arrays are sensitive to gauge bosons with mass ～10～3-10～4 GeV, while space-and ground-based interferometers to those with mass ～10～7-1012GeV, leading to essential complements to on-going and future experiments of high-energy physics.

关键词： scalar-induced gravitational waves Silk damping new physics

PDMS/CNT/MXene中空微球复合膜的制备及其应用

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合肥大学学报 2024年第5期41卷 58-63页

作者：孟威明鲁红典黎涛王丁丁合肥大学能源材料与化工学院合肥230601

含油污水的去除以及生活用水的净化是如今环境治理的难题之一。本研究基于牺牲模板法,通过热处理MXene纳米片包覆阳离子型聚苯乙烯微球(CPS@MXene)获得疏水性的中空MXene微球(HSMX),并通过添加一定比例的羟基化碳纳米管(CNT-OH)和适量... 详细信息

含油污水的去除以及生活用水的净化是如今环境治理的难题之一。本研究基于牺牲模板法,通过热处理MXene纳米片包覆阳离子型聚苯乙烯微球(CPS@MXene)获得疏水性的中空MXene微球(HSMX),并通过添加一定比例的羟基化碳纳米管(CNT-OH)和适量聚二甲基硅氧烷(PDMS),采用真空抽滤工艺在聚四氟乙烯(PVDF)底膜上制备了疏水性PDMS/CNT/HSMX复合膜。该膜具有优异的油水分离性能,对四氯化碳油包水乳液的分离效率达到98.8%,分离通量高达470 L/m^(2)·h·bar,并具有良好的可循环使用性。

关键词： MXene 聚苯乙烯微球碳纳米管聚二甲基硅氧烷油包水乳液分离

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胞内酶敏感肿瘤靶向递药体系的合成及应用

西北药学杂志 2019年第2期34卷 203-208页

作者：王丁丁孙中洋南军徐若男中国人民解放军第73852部队药品器材供应站中国人民解放军第四五四医院骨科江苏省军区保障局中国人民解放军南京总医院保健办公室

目的利用对乳腺癌肿瘤细胞MDA-MB-435内特有酶豆蛋白酶(legumain)敏感的多肽(AANL)连接阿霉素(DOX)构建具有胞内特异性释药功能的纳米递药系统,并对AANL在含有legumain环境下的断裂效率进行研究。方法将DOX用AANL修饰得到AANL-DOX(AD),... 详细信息

目的利用对乳腺癌肿瘤细胞MDA-MB-435内特有酶豆蛋白酶(legumain)敏感的多肽(AANL)连接阿霉素(DOX)构建具有胞内特异性释药功能的纳米递药系统,并对AANL在含有legumain环境下的断裂效率进行研究。方法将DOX用AANL修饰得到AANL-DOX(AD),再将AD连接至4-arm PEG上,最后将细胞穿膜肽(TAT)连接至4-arm PEG-AD上,制备出TAT-PEG-AD并自组装形成纳米粒(TPAD)。核磁表征TAT-PEG-AANL-DOX;粒度分析仪和透射电镜测定纳米粒的粒径及外观形貌;模拟体内、肿瘤微环境和胞内环境通过动态透析法研究legumain对AANL的断裂效率并模拟DOX的药物控释效率;细胞毒性研究TPAD对MDA-MB-435细胞的毒性作用。结果核磁共振氢谱证实TAT-PEG-AANL-DOX合成成功;测定TPAD的粒径为126.3 nm;透射电镜(TEM)观察纳米粒结构圆整,粒径为80 nm;24 h的累积释药量为82.2%;体外细胞毒性研究表明,TPAD对MDA-MB-435细胞有较好的杀伤作用,其效果接近游离DOX的细胞毒性。结论利用legumain敏感多肽连接DOX制备具有胞内特异性释药功能的纳米粒,能够有效实现肿瘤细胞内晚期内涵体和溶酶体精准释药,提高抗肿瘤药物的生物利用度,值得进一步研究。

关键词：豆蛋白酶酶敏感纳米递药体系细胞穿膜肽

Mechanism of inflammatory response and therapeutic effects of stem cells in ischemic stroke:current evidence and future perspectives

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Neural Regeneration Research 2025年第1期20卷 67-81页

作者： Yubo wang Tingli Yuan Tianjie Lyu Ling Zhang Meng wang Zhiying He Yongjun wang Zixiao Li Vascular Neurology Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Shanghai Engineering Research Center of Stem Cells Translational Medicine ShanghaiChina National Center for Healthcare Quality Management in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Institute for Regenerative Medicine Shanghai East HospitalSchool of Life Sciences and TechnologyTongji UniversityShanghaiChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina

Ischemic stroke is a leading cause of death and disability worldwide,with an increasing trend and tendency for onset at a younger ***,in particular,bears a high burden of stroke *** recent years,the inflammatory response after stroke has become a research hotspot:understanding the role of inflammatory response in tissue damage and repair following ischemic stroke is an important direction for its *** review summarizes several major cells involved in the inflammatory response following ischemic stroke,including microglia,neutrophils,monocytes,lymphocytes,and ***,we have also highlighted the recent progress in various treatments for ischemic stroke,particularly in the field of stem cell ***,understanding the complex interactions between inflammation and ischemic stroke can provide valuable insights for developing treatment strategies and improving patient *** cell therapy may potentially become an important component of ischemic stroke treatment.

关键词： cell therapy immune cell inflammatory ischemic stroke stem cell

Assessing the corrosion protection property of coatings loaded with corrosion inhibitors using the real-time atmospheric corrosion monitoring technique

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 119-126页

作者： Xiaoxue wang Lulu Jin Jinke wang Rongqiao wang Xiuchun Liu Kai Gao Jingli Sun Yong Yuan Lingwei Ma Hongchang Qian Dawei Zhang School of Energy and Power Engineering Beihang UniversityBeijing 100191China Beijing Institute of Space Long March Vehicle Beijing 100076China National Materials Corrosion and Protection Data Center University of Science and Technology BeijingBeijing 100083China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China Shanghai Spaceflight Precision Machinery Institute Shanghai 201600China

The atmospheric corrosion monitoring(ACM)technique has been widely employed to track the real-time corrosion behavior of metal ***,limited studies have applied ACM to the corrosion protection properties of organic *** study compared a bare epoxy coating with one containing zinc phosphate corrosion inhibitors,both applied on ACM sensors,to observe their corrosion protection properties over *** with artificial damage via scratches were exposed to immersion and alternating dry and wet environments,which allowed for monitoring galvanic corrosion currents in *** the corrosion tests,the ACM currents of the zinc phosphate/epoxy coating were considerably lower than those of the blank epoxy *** trend in ACM current variations closely matched the results obtained from regular electrochemical tests and surface *** alignment highlights the potential of the ACM technique in evaluating the corrosion protection capabilities of organic *** with the blank epoxy coating,the zinc phosphate/epoxy coating showed much-decreased ACM current values that confirmed the effective inhibition of zinc phosphate against steel corrosion beneath the damaged coating.

关键词： atmospheric corrosion monitoring technology corrosion inhibitor coating carbon steel corrosion protection

利用表面增强拉曼光谱对光照条件下改性罗丹明-6G失效机理的研究

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光散射学报 2023年第3期35卷 270-274页

作者：王丁丁安晓娇徐梦恬刘涛王筠核工业理化工程研究院天津300180 粒子输运与富集技术国防科技重点实验室天津300180

改性罗丹明-6G分子结构复杂,保存不当易分解,为了降低拉曼光谱的荧光背底,提高拉曼光谱信号稳定性,本文对激光波长、增强剂比例、稳定时间、光谱采集等参数的影响进行了优化分析,确定了最优的测试条件激光波长(785 nm)、增强剂比例(V样... 详细信息

改性罗丹明-6G分子结构复杂,保存不当易分解,为了降低拉曼光谱的荧光背底,提高拉曼光谱信号稳定性,本文对激光波长、增强剂比例、稳定时间、光谱采集等参数的影响进行了优化分析,确定了最优的测试条件激光波长(785 nm)、增强剂比例(V样品∶V增强剂=2∶1)、增强剂和样品混合后放置时间(0.5 h)、采谱条件(采谱时间10 s,积分次数3次)。在该条件下测试了(100~250 mg/L)浓度标准溶液,平行试样三个,以F2峰(2062.5 cm^(-1))峰面积为响应值,建立响应值-浓度曲线,得到了浓度线性方程。此方法线性相关系数为0.968,标准偏差3.85%,检出限为25 mg/L,说明该方法可用于改性罗丹明-6G染料浓度的测定。对光照分解的染料定期取样测试其浓度和特征峰变化情况,结果表明随着光照时间的增加,染料浓度迅速下降,同时H F1∶F2峰高比下降,其中F1峰(935.2 cm^(-1))与取代基中C-F键相关振动峰,F2峰为氧杂蒽键的振动峰,说明罗丹明-6G染料日照分解过程中,主链和支链均发生断裂,其中C-F键更易断裂。

关键词：表面增强拉曼光谱(SERS) 改性罗丹明6G 染料浓度光照失效机理

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie wang Wei wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

Detection and Recognition of Spray Code Numbers on Can Surfaces Based on OCR

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Computers, Materials & Continua 2025年第1期82卷 1109-1128页

作者： Hailong wang Junchao Shi School of Computer Science Zhongyuan University of TechnologyZhengzhou450007China

A two-stage algorithm based on deep learning for the detection and recognition of can bottom spray codes and numbers is proposed to address the problems of small character areas and fast production line speeds in can bottom spray code number *** the coding number detection stage,Differentiable Binarization Network is used as the backbone network,combined with the Attention and Dilation Convolutions Path Aggregation Network feature fusion structure to enhance the model detection *** terms of text recognition,using the Scene Visual Text Recognition coding number recognition network for end-to-end training can alleviate the problem of coding recognition errors caused by image color distortion due to variations in lighting and background *** addition,model pruning and quantization are used to reduce the number ofmodel parameters to meet deployment requirements in resource-constrained environments.A comparative experiment was conducted using the dataset of tank bottom spray code numbers collected on-site,and a transfer experiment was conducted using the dataset of packaging box production *** experimental results show that the algorithm proposed in this study can effectively locate the coding of cans at different positions on the roller conveyor,and can accurately identify the coding numbers at high production line *** Hmean value of the coding number detection is 97.32%,and the accuracy of the coding number recognition is 98.21%.This verifies that the algorithm proposed in this paper has high accuracy in coding number detection and recognition.

关键词： Can coding recognition differentiable binarization network scene visual text recognition model pruning and quantification transport model

两种剂量曲安奈德玻璃体腔注射治疗糖尿病性黄斑水肿的疗效及安全性对比

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临床眼科杂志 2016年第3期24卷 219-221页

作者：宋青山王丁丁陈子林广东省惠州市中心人民医院眼科 516000

目的观察2 mg和4 mg曲安奈德(TA)玻璃体腔内注射治疗糖尿病性黄斑水肿的疗效及并发症的差异性。方法 54例(58只眼)糖尿病性弥漫性黄斑水肿病例随机分成2组,A组29例(31只眼)玻璃体腔注射2mg TA,B组25例(27只眼)玻璃体腔内注射4 mg TA,术... 详细信息

目的观察2 mg和4 mg曲安奈德(TA)玻璃体腔内注射治疗糖尿病性黄斑水肿的疗效及并发症的差异性。方法 54例(58只眼)糖尿病性弥漫性黄斑水肿病例随机分成2组,A组29例(31只眼)玻璃体腔注射2mg TA,B组25例(27只眼)玻璃体腔内注射4 mg TA,术后随访6个月,观察术后视力、眼压、晶状体、视网膜厚度改变及眼内炎发生情况。结果术后3个月,A组视力0.12±0.21,B组视力0.16±0.25,两组比较差异无统计学意义。术后6个月,A组视力0.14±0.16,B组视力0.15±0.23,两组比较差异无统计学意义。术后3个月视网膜厚度A组(241.32+50.13)μm,B组(238.62±56.75)μm,两组比较差异无统计学意义。术后6个月A组(286.17+51.31)μm,B组(245.56±61.75)μm,两组比较差异无统计学意义。A组术后3个月6只眼眼压大于21 mm Hg,B组8只眼眼压大于21 mm Hg,差异无统计学意义。术后6个月A组2只眼眼压超过21 mm Hg,B组5只眼眼压超过21 mm Hg,两组比较差异无统计学意义。术后3个月A组晶状体混浊加重2只眼,B组8只眼,差异有统计学意义。术后6个月A组晶状体混浊加重4只眼。B组11只眼,差异有统计学意义。两组患者术后均未见眼内炎发生。结论 2 mg及4 mg曲安奈德玻璃体腔内注射治疗糖尿病性黄斑水肿,两者在提高患者视力、减轻视网膜水肿疗效无差异性,但4 mg较2 mg的剂量更容易引起白内障加重。

关键词：黄斑水肿曲安奈德玻璃体腔注射并发症