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Facile electrochemical surface-alloying and etching of Au wires to enable high-performance substrates for surface enhanced Raman scattering

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Nano Materials Science 2024年第3期6卷 305-311页

作者： Yawen Zhan Guobin Zhang Junda Shen Binbin Zhou Chenghao Zhao Junmei Guo Ming Wen Zhilong Tan lirong Zheng Jian Lu yang yang li Center of Super-Diamond and Advanced Films(COSDAF) City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Department of Materials Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Kunming Institute of Precious Metals Sino-platinum Metals Co.Ltd.KunmingYunan ProvinceChina Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research Institute8 Yuexing 1st RoadShenzhen Hi-Tech Industrial ParkNanshan DistrictShenzhenChina Shenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055China Institute of High Energy Physics Beijing100049China

Surface-enhanced Raman Spectroscopy(SERS)is a nondestructive technique for rapid detection of analytes even at the single-molecule ***,highly sensitive and reliable SERS substrates are mostly fabricated with complex nanofabrication techniques,greatly restricting their practical applications.A convenient electrochemical method for transforming the surface of commercial gold wires/foils into silver-alloyed nanostructures is demonstrated in this *** substrates are treated with repetitive anodic and cathodic bias in an electrolyte of thiourea,in a one-pot one-step manner.X-rays absorption fine structure(XAFS)spectroscopy confirms that the AuAg alloy is induced at the *** unique AuAg alloyed surface nanostructures are particularly advantageous when served as SERS substrates,enabling a remarkably sensitive detection of Rhodamine B(a detection limit of 10^(-14)M,and uniform strong response throughout the substrates at 10^(-12)M).

关键词： Electrodeposition Dealloying Surface-alloyed Noble metals Surface enhanced Raman spectroscopy substrates

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Nomogram based on multimodal magnetic resonance combined with B7-H3mRNA for preoperative lymph node prediction in esophagus cancer

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World Journal of Clinical Oncology 2024年第3期15卷 419-433页

作者： Yan-Han Xu Peng Lu Ming-Cheng Gao Rui Wang yang-yang li Rong-Qi Guo Wei-Song Zhang Jian-Xiang Song School of Clinical Sciences Graduate School of Nantong UniversityYancheng 226019Jiangsu ProvinceChina Department of Thoracic Surgery Yancheng Third People's HospitalThe Affiliated Hospital 6 of Nantong UniversityYancheng 224000Jiangsu ProvinceChina Department of Imaging Yancheng Third People's HospitalThe Affiliated Hospital 6 of Nantong UniversityYancheng 224000Jiangsu ProvinceChina

Accurate preoperative prediction of lymph node metastasis(LNM)in esophageal cancer(EC)patients is of crucial clinical significance for treatment planning and *** To develop a clinical radiomics nomogram that can predict the preoperative lymph node(LN)status in EC *** A total of 32 EC patients confirmed by clinical pathology(who underwent surgical treatment)were ***-time fluorescent quantitative reverse transcription-polymerase chain reaction was used to detect the expression of B7-H3 mRNA in EC tissue obtained during preoperative gastroscopy,and its correlation with LNM was *** features were extracted from multi-modal magnetic resonance imaging of EC using Pyradiomics in *** extraction,data dimensionality reduction,and feature selection were performed using XGBoost model and leave-one-out *** logistic regression analysis was used to establish the prediction model,which included radiomics features,LN status from computed tomography(CT)reports,and B7-H3 mRNA expression,represented by a radiomics *** operating characteristic area under the curve(AUC)and decision curve analysis(DCA)were used to evaluate the predictive performance and clinical application value of the *** The relative expression of B7-H3 mRNA in EC patients with LNM was higher than in those without metastasis,and the difference was statistically significant(Plized clinical prediction nomogram included radiomics features,LN status from CT reports,and B7-H3 mRNA *** ROC curve demonstrated good diagnostic value,with an AUC value of 0.765(95%CI:0.598-0.931),sensitivity of 0.800,and specificity of *** indicated the practical value of the radiomics nomogram in clinical ***

关键词： Esophageal cancer Radiomics B7-H3mRNA Multimodal magnetic resonance imaging Lymph node metastasis Nomogram

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葡萄籽原花青素对砷诱导的小鼠睾丸损伤的保护作用

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中国临床药理学杂志 2024年第5期40卷 713-717页

作者：曾群赵果毅吴娜杨李阳苗宇船山西中医药大学基础医学院山西晋中030619

目的探讨葡萄籽原花青素(GSPs)对砷暴露小鼠睾丸核因子-E2相关因子(Nrf2)抗氧化系统和线粒体生物合成的影响。方法 ICR小鼠随机分为对照组、模型组、GSPs组和实验组。模型组和实验组小鼠饮用亚砷酸钠水溶液(10 mg·L^(-1)砷)诱导睾丸损... 详细信息

目的探讨葡萄籽原花青素(GSPs)对砷暴露小鼠睾丸核因子-E2相关因子(Nrf2)抗氧化系统和线粒体生物合成的影响。方法 ICR小鼠随机分为对照组、模型组、GSPs组和实验组。模型组和实验组小鼠饮用亚砷酸钠水溶液(10 mg·L^(-1)砷)诱导睾丸损伤,GSPs组和实验组给予100 mg·kg ^(-1) GSPs灌胃,对照组和模型组给予等体积蒸馏水灌胃,每天1次,连续8周。用苏木精-伊红(HE)染色制片对睾丸组织学参数测量,用试剂盒法测定睾丸组织丙二醛(MDA)、超氧化物歧化酶(SOD)和腺苷三磷酸(ATP)含量,用实时定量逆转录聚合酶链反应(RT-PCR)法检测血红素加氧酶1(HO-1)、醌氧化还原酶1 (NQO1)的表达水平,用免疫组化法检测睾丸组织Nrf2蛋白表达,用蛋白质印迹法检测睾丸线粒体合成相关蛋白的表达。结果对照组、模型组、GSPs组、实验组的生精小管直径分别为(184.32±14.14)、(170.41±10.70)、(186.87±8.03)和(181.70±9.15)μm,MDA分别为(2.30±0.26)、(3.28±0.64)、(2.32±0.40)和(2.74±0.31) nmol·mg^(-1),Nrf2阳性表达细胞比例分别为(46.50±11.98)%、(22.33±8.82)%、(51.67±12.44)%和(39.83±8.35)%,HO-1 mRNA表达水平分别为1.00±0.21、0.51±0.10、1.00±0.28和0.80±0.06,NQO1 mRNA表达水平分别为1.00±0.18、0.59±0.11、1.09±0.28和0.81±0.08,ATP分别为(491.83±67.16)、(368.81±69.93)、(512.44±70.96)和(472.20±68.24)μmol·g ^(-1),PGC-1α蛋白相对表达水平分别为1.00±0.06、0.22±0.03、0.94±0.05和0.48±0.05,TFAM蛋白相对表达水平分别为1.00±0.07、0.32±0.05、0.80±0.05和0.67±0.06。实验组的上述指标与模型组相比,在统计学上差异均有统计学意义(P<0.05,P<0.01)。结论 GSPs可通过激活Nfr2抗氧化系统和促进线粒体生物合成,对砷诱导的小鼠睾丸损伤具有保护作用。

关键词：葡萄籽原花青素砷氧化应激核因子NF-E2相关因子线粒体生物合成

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Research on the applications of infrared technique in the diagnosis and prediction of diesel engine exhaust fault

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Journal of Thermal Science 2011年第2期20卷 189-194页

作者： Lv Shi-gui yang li yang Qian Department of Power Engineering Naval University of Engineering Wuhan 430033 China

This paper mainly introduces the basic principles,the methods and the applications of infrared technique in the diagnosis and prediction of diesel engine exhaust faults. The test-bed for monitoring diesel engine exhaust faults by thermal infrared imager has been designed. In different running conditions, the exterior surface radiation temperatures of the exhaust pipe of the 6135G-1 diesel engine have been measured by infrared imaging system. According to the principle of infrared temperature measurement, the real temperatures of the exterior surface of the exhaust pipe have been calculated. Based on the principle of heat transfer, the method of calculating the exhaust temperatures according to the exterior surface radiation temperatures of exhaust pipe measured by thermal infrared imager is built. The relationship between diesel engine exhaust temperatures and faults has been analyzed. It is shown that the application of infrared inspection and diagnosis to the identifying of diesel engine exhaust faults is feasible and effective.

关键词： infrared exhaust temperature infrared diagnosis diesel engine fault

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Congener-derived template to construct lithiophilic organic-inorganic layer/interphase for high volumetric capacity dendrite-free li metal batteries

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Chinese Chemical Letters 2024年第3期35卷 453-460页

作者： Kang yang Long li Yuanbin Xiao Qiaoli Zhang Chenpeng Xi Borong li Yan Yu Chengkai yang Key Laboratory of Advanced Materials Technologies International(HongKong Macao and Taiwan)Joint Laboratory on Advanced Materials TechnologiesCollege of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China

The development of lithium-metal batteries(LMBs)is seriously restricted by the out-of-control dendrites growth and infinite volume ***,a pervasive organic-inorganic layer construction strategy is reported for the composite lithium metal anode with congener-derived organic-inorganic solid electrolyte interphase(SEI).In this strategy,the organic-inorganic Ag@polydopamine(Ag@PDA)layer is coated on the arbitrary substrates by a simple two-step *** thin and stable congener-derived SEI is insitu formed with fewer inorganic components and more organic components during charging/*** polydopamine with sufficient adhesion groups and lithiophilic Ag layer realize near-zero nucleation overpotential during lithium *** low interface resistance and stable lithium deposition are ***,the practical areal and volumetric capacities of the composite anode with three-dimensional copper(3DCu)as the substrate are 10 mAh/cm^(2)and 1538 mAh/cm^3(*** mass of anode).The symmetrical cell shows very low polarization voltage(10 mV)and more than 2500 h cycles life at 1 mA/cm^(2)(1 mAh/cm^(2)).The liNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)-based full cells show improved capacity retention(82%)after 100 cycles at 0.5 *** modified lithiophilic anode with congener-derived interphase provides a promising strategy to realize the next-generation dendrite-free LMBs.

关键词： lithium metal anode Congener-derived lithiophilicity Volumetric capacity Organic-inorganic interphase

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Gesture Recognition Based on BP Neural Network Improved by Chaotic Genetic Algorithm

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International Journal of Automation and computing 2018年第3期15卷 267-276页

作者： Dong-Jie li yang-yang li Jun-Xiang li Yu Fu School of Automation Harbin University of Science and Technology

Aim at the defects of easy to fall into the local minimum point and the low convergence speed of back propagation（BP）neural network in the gesture recognition, a new method that combines the chaos algorithm with the genetic algorithm（CGA） is proposed. According to the ergodicity of chaos algorithm and global convergence of genetic algorithm, the basic idea of this paper is to encode the weights and thresholds of BP neural network and obtain a general optimal solution with genetic algorithm, and then the general optimal solution is optimized to the accurate optimal solution by adding chaotic disturbance. The optimal results of the chaotic genetic algorithm are used as the initial weights and thresholds of the BP neural network to recognize the gesture. Simulation and experimental results show that the real-time performance and accuracy of the gesture recognition are greatly improved with CGA.

关键词： Gesture recognition back propagation (BP) neural network chaos algorithm genetic algorithm data glove.

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Microbes as a production host to produce natural active compounds from mushrooms:biosynthetic pathway elucidation and metabolic engineering

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Chinese Journal of Natural Medicines 2021年第8期19卷 580-590页

作者： yang li-yang GONG Qiang GUO Jian-Quan li Gui-Lan School of Basic Medical Sciences Shanxi University of Chinese MedicineJinzhong 030619China School of Public Health Shanxi Medical UniversityTaiyuan 030001China

Mushrooms are abundant in bioactive natural *** to strict growth conditions and long fermentation-time,microbe as a production host is an alternative and sustainable approach for the production of natural *** review focuses on the biosynthetic pathways of mushroom originated natural compounds and microbes as the production host for the production of the above natural compounds.

关键词： Mushroom Natural compound Microbes Synthetic biology Metabolic engineering

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SEI/dead li-turning capacity loss for high-performance anode-free solid-state lithium batteries

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Journal of Energy Chemistry 2024年第9期96卷 145-152页

作者： Qianwen Yin Tianyu li Hongzhang Zhang Guiming Zhong Xiaofei yang Xianfeng li Division of Energy Storage Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Long-Duration and Large-Scale Energy Storage Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Laboratory of Advanced Spectro-Electrochemistry and lithium-Ion Batteries Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina

Anode-free solid-state lithium metal batteries(AF-SSLBs)have the potential to deliver higher energy density and improved safety beyond lithium-metal ***,the unclear mechanism for the fast capacity decay in AF-SSLBs,either determined by dead li or solid electrolyte interface(SEI),limits the proposal of effective strategies to prolong cycling *** clarify the underlying mechanism,herein,the evolution of SEI and dead li is quantitatively analyzed by a solid-state nuclear magnetic resonance(ss-NMR)technology in a typical liPF6-based polymer *** results show that the initial capacity loss is attributed to the formation of SEI,while the dead li dominates the following capacity loss and the growth rate is 0.141 mA h cm^(−2)cycle−*** reduce the active li loss,the combination of inorganic-rich SEI and self-healing electrostatic shield effect is proposed to improve the reversibility of li deposition/dissolution behavior,which reduces the capacity loss rate for the initial SEI and following dead li generation by 2.3 and 20.1 folds,*** a result,the initial Coulombic efficiency(ICE)and stable CE increase by 15.1%and 15.3%in li-Cu cells,which guides the rational design of high-performance AF-SSLBs.

关键词： Solid-state lithium batteries Solid-state NMR Anode-free SEI Dead li

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Bestow metal foams with nanostructured surfaces via a convenient electrochemical method for improved device performance

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Nano Research 2016年第8期9卷 2364-2371页

作者： Yawen Zhan Shanshan Zeng Haidong Bian Zhe li Zhengtao Xu Jian LU yang yang li Center of Super-Diamond and Advanced Films (COSDAF) City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China Department of Physics and Materials Science City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China Department of Chemistry and Biology City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China Department of Mechanical and Biomedical Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research Institute 8 Yuexing 1st Road ShenzhenHi-Tech Industrial Park Nanshan District Shenzhen 518000 China City University ofHong Kong Shenzhen Research Institute 8 Yuexing 1st Road Shenzhen Hi-Tech Industrial Park Nanshan District Shenzhen 518000 China

Metal foams have been intensively studied as three-dimensional （3-D） bulk mass-support for various applications because of their high conductivities and attractive mechanical properties. However, the relatively low surface area of conventional metal foams largely limits their performance in applications such as charge storage. Here, we present a convenient electrochemical method for addressing this problem using Cu foams as an example. High surface area Cu foams are fabricated in a one-pot one-step manner by repetitive electrodeposition and dealloying treatments. The obtained Cu foams exhibit greatly improved performance for different applications like surface enhanced Raman spectroscopy （SERS） substrates and 3-D bulk supercapacitor electrodes.

关键词： electrodeposition dealloying metal foams surface enhanced Ramanspectroscopy substrates supercapacitors

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Efficient Chemical Prelithiation with Modificatory li^(+) Solvation Structure Enabling Spatially Homogeneous SEI toward High Performance SiOx Anode

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Chinese Journal of Chemistry 2024年第17期42卷 2056-2065页

作者： Ruoyang Wang Yuqing Wu Yifan Niu Qing yang Haoyu li yang Song Benhe Zhong liwen yang Ting Chen Zhenguo Wu Xiaodong Guo School of Chemical Engineering Sichuan UniversityChengduSichuan 610065China Chengdu No.7 High School ChengduSichuan 6100412China Institute for Applied Materials(IAM) Karlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz1D-76344 Eggenstein-LeopoldshafenGermany Institute for Advanced Study Chengdu UniversityChengduSichuan 610106China

Chemical prelithiation is widely proven to be an effective strategy to address the low initial coulombic efficiency(ICE)of promising SiOx *** the reagent composition has been widely explored,the li solvation structure,which practically plays the cornerstone role in the prelithiation ability,rate,uniformility,has rarely been explored.A novel environmentally-friendly reagent with weak solvent cyclopentyl methyl ether(CPME)is proposed that enables both improved ICE and spatial homogeneous solid electrolyte interphase(SEl).And the prelithiation behavior and mechanism were explored focused on the li*solvation *** theoretical investigation and spectroscopic results suggest that weak solvent feature of CPME reduces the solvent coordination number and decreases the lit desolvation energy.

关键词： lithium-ion battery SiOx anode Prelithiation Weak solvent Homogeneous SEI Energy conversion Desolvation energy

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