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钴氢氧化物修饰玻碳电极的镀膜/循环伏安法制备及其电化学行为

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化学学报 2004年第20期62卷 2067-2072,F009页

作者：刘有芹沈含熙南开大学化学系

采用一种新方法镀膜 /循环伏安法成功制备了钴氢氧化物修饰玻碳电极 .考察了影响钴氢氧化物膜电催化活性的因素 ,确定最佳富集时间为 2min ,最佳活性单元浓度为 9 90× 10 -4mol·L-1.讨论了成膜过程及机理 .膜氧化峰电流 (i0pa)与扫描... 详细信息

采用一种新方法镀膜 /循环伏安法成功制备了钴氢氧化物修饰玻碳电极 .考察了影响钴氢氧化物膜电催化活性的因素 ,确定最佳富集时间为 2min ,最佳活性单元浓度为 9 90× 10 -4mol·L-1.讨论了成膜过程及机理 .膜氧化峰电流 (i0pa)与扫描速率 (v <0 60V·s-1)成正比 ,具有表面吸附反应特征 ,表面覆盖量约相当于 0 5个单层的氧化还原活性物质 .制得的钴氢氧化物膜修饰电极具有相当的稳定性 ,并对H2 O2 氧化表现出较高的电催化活性 .线性回归方程为 :Δipa( μA) =-2 10 3 6+2 3 72 0× 10 4CH2 O2 (mol·L-1) (R =0 9990 ,n =18) ,线性范围为 :1 43× 10 -5～ 1 80× 10 -2 mol·L-1,检出限为 :9 5 9× 10 -6mol·L-1( 3S/k) .

关键词：钴氢氧化物修饰玻碳电极循环伏安法制备电化学行为电氧化

Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi Xueying Chen Bowen liu Xuliang Lin Xueqing Qiu Yanlin qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Guangdong Basic Research Center of Excellence for Ecological Security and Green Development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

Engineered Cancer Nanovaccines:A New Frontier in Cancer Therapy

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Nano-Micro Letters 2025年第2期17卷 134-168页

作者： Yijie Wang Congrui liu Chao Fang Qiuxia Peng Wen qin Xuebing Yan Kun Zhang Central Laboratory and Department of Medical Ultrasound Sichuan Academy of Medical SciencesSichuan Provincial People’s HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaNo.32West Second SectionFirst Ring RoadChengdu 610072People’s Republic of China Department of Stomatology and Central Laboratory School of MedicineShanghai Tenth People’s HospitalTongji UniversityNO.301 Yan‑Chang‑Zhong RoadShanghai 200072People’s Republic of China Jiangsu Provincial Innovation and Practice Base for Postdoctors Suining People’s HospitalAffiliated Hospital of Xuzhou Medical UniversityNo.2Bayi West RoadSuiningXu Zhou 221000Jiangsu ProvincePeople’s Republic of China

Vaccinations are essential for preventing and treating disease,especially cancer nanovaccines,which have gained considerable interest recently for their strong anti-tumor immune *** can prompt the immune system to generate antibodies and activate various immune cells,leading to a response against tumor tissues and reducing the negative effects and recurrence risks of traditional chemotherapy and *** enhance the flexibility and targeting of vaccines,nanovaccines utilize nanotechnology to encapsulate or carry antigens at the nanoscale level,enabling more controlled and precise drug delivery to enhance immune *** nanovaccines function by encapsulating tumor-specific antigens or tumor-associated antigens within *** small size of these nanomaterials allows for precise targeting of T cells,dendritic cells,or cancer cells,thereby eliciting a more potent anti-tumor *** this paper,we focus on the classification of carriers for cancer nanovaccines,the roles of different target cells,and clinically tested cancer nanovaccines,discussing strategies for effectively inducing cytotoxic T lymphocytes responses and optimizing antigen presentation,while also looking ahead to the translational challenges of moving from animal experiments to clinical trials.

关键词： Cancer nanovaccines Immunotherapy Nanobiotechnology Immune targets Signaling pathway

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化学修饰电极的研究及其分析应用

化学研究与应用 2006年第4期18卷 337-343页

作者：刘有芹颜芸沈含熙华南农业大学理学院应用化学系广东广州510642 南开大学化学学院天津300071

化学修饰电极的出现推动了电化学的发展,是现代电分析化学领域中一个重要的研究方向。本文较详细地评述了化学修饰电极的制备方法及其电分析应用,对其未来发展作了展望。

关键词：化学修饰电极制备方法分析应用

The emerging role of nitric oxide in the synaptic dysfunction of vascular dementia

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Neural Regeneration Research 2025年第2期20卷 402-415页

作者： Xiaorong Zhang Zhiying Chen Yinyi Xiong qin Zhou Ling-Qiang Zhu Dan liu Department of Pathology Affiliated Hospital of Jiujiang UniversityJiujiangJiangxi ProvinceChina Jiujiang Clinical Precision Medicine Research Center JiujiangJiangxi ProvinceChina Center for Cognitive Science and Transdisciplinary Studies Jiujiang UniversityJiangxi ProvinceChina Department of Neurology Affiliated Hospital of Jiujiang UniversityJiujiangJiangxi ProvinceChina Department of Rehabilitation Affiliated Hospital of Jiujiang UniversityJiujiangJiangxi ProvinceChina Department of Pathophysiology School of Basic MedicineTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

With an increase in global aging,the number of people affected by cerebrovascular diseases is also increasing,and the incidence of vascular dementia-closely related to cerebrovascular risk-is increasing at an epidemic ***,few therapeutic options exist that can markedly improve the cognitive impairment and prognosis of vascular dementia *** in Alzheimer’s disease and other neurological disorders,synaptic dysfunction is recognized as the main reason for cognitive *** oxide is one of the ubiquitous gaseous cellular messengers involved in multiple physiological and pathological processes of the central nervous ***,nitric oxide has been implicated in regulating synaptic plasticity and plays an important role in the pathogenesis of vascular *** review introduces in detail the emerging role of nitric oxide in physiological and pathological states of vascular dementia and summarizes the diverse effects of nitric oxide on different aspects of synaptic dysfunction,neuroinflammation,oxidative stress,and blood-brain barrier dysfunction that underlie the progress of vascular ***,we propose that targeting the nitric oxide-sGC-cGMP pathway using certain specific approaches may provide a novel therapeutic strategy for vascular dementia.

关键词： endoplasmic reticulum stress endothelial nitric oxide synthase gene therapy nitric oxide NO-sGC-cGMP pathway synaptic dysfunction vascular dementia

镍氢氧化物修饰玻碳电极的制备及其电化学行为

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分析科学学报 2005年第4期21卷 378-380页

作者：刘有芹沈含熙南开大学化学系天津300071

采用一种新方法--镀膜/循环伏安法成功制备了镍氢氧化物修饰玻碳电极.考察了影响镍氢氧化物膜电催化活性的因素,确定最佳富集时间为2 min,最佳富集电位为-1.4 V.讨论了成膜过程及机理.膜氧化峰电流及催化氧化峰电流均受扩散控制.制得的... 详细信息

采用一种新方法--镀膜/循环伏安法成功制备了镍氢氧化物修饰玻碳电极.考察了影响镍氢氧化物膜电催化活性的因素,确定最佳富集时间为2 min,最佳富集电位为-1.4 V.讨论了成膜过程及机理.膜氧化峰电流及催化氧化峰电流均受扩散控制.制得的镍氢氧化物膜修饰电极具有相当的稳定性,并对H2O2的电氧化表现出较高的电催化活性.该电极对H2O2响应的线性范围为1.71×10-5～1.33×10-2 mol/L,检出限为2.86×10-6 mol/L (S/N=3).

关键词：镍氢氧化物阴极富集循环伏安法电催化

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分子印迹聚合物固相萃取红椒粉中的苏丹红Ⅰ

化学研究与应用 2008年第7期20卷 812-815页

作者：徐莉刘英菊刘有芹刘岚华南农业大学化学系广东广州510642 中山大学化学与化学工程学院广东广州510275

本文以苏丹红Ⅰ为模板分子,以甲基丙烯酸(MAA)、4-乙烯基吡啶(4-VPy)为功能单体,制备了两种模板聚合物(MAA-MIP和4-VPy-MIP)。对4-VPy-MIP进行了Scatchard方程分析。分别以这两种模板聚合物为固相萃取材料来填充固相萃取柱,从掺有苏丹... 详细信息

本文以苏丹红Ⅰ为模板分子,以甲基丙烯酸(MAA)、4-乙烯基吡啶(4-VPy)为功能单体,制备了两种模板聚合物(MAA-MIP和4-VPy-MIP)。对4-VPy-MIP进行了Scatchard方程分析。分别以这两种模板聚合物为固相萃取材料来填充固相萃取柱,从掺有苏丹红Ⅰ的红椒粉中萃取苏丹红Ⅰ。本文优化了固相萃取条件。高效液相色谱检测表明,在合适的萃取条件下,采用填充4-VPy-MIP的固相萃取柱可以有效地从红椒粉中分离富集苏丹红Ⅰ。

关键词：分子印迹聚合物固相萃取苏丹红Ⅰ 高效液相色谱

基于自组织神经网络的居民区域旅游影响感知研究--以安徽省灵璧县为例

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旅游学刊 2008年第9期23卷 28-34页

作者：涂玮刘庆友金丽娇金肯职业技术学院江苏南京211156 南京农业大学江苏南京210095

本文以旅游资源型小城镇安徽省灵璧县为例,以居民对旅游影响的感知、态度为基础,利用自组织神经网络方法,对居民旅游影响感知进行分类研究,并对分类结果进行深入剖析。通过分类研究,把握旅游地居民感知特征,为旅游地的可持续发展、旅游... 详细信息

本文以旅游资源型小城镇安徽省灵璧县为例,以居民对旅游影响的感知、态度为基础,利用自组织神经网络方法,对居民旅游影响感知进行分类研究,并对分类结果进行深入剖析。通过分类研究,把握旅游地居民感知特征,为旅游地的可持续发展、旅游规划提供依据。同时作者将分类结果与前人对不同发展阶段旅游地的分类结果进行比较分析,验证了旅游地发展阶段理论,证实了神经网络方法在居民旅游影响感知分类研究中的适用性,促进了旅游学科与更多方法的融合。

关键词：自组织神经网络居民旅游影响感知

基于聚酪氨酸/铋修饰玻碳电极的Pb^(2+)传感器研究

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分析测试学报 2021年第3期40卷 383-388页

作者：林婉芳翟文颖刘有芹生物基材料与能源教育部重点实验室华南农业大学材料与能源学院广东广州510642

采用循环伏安法及原位镀铋制备了聚酪氨酸/Bi复合膜修饰玻碳电极(p-Tyr/Bi/GC),并用交流阻抗谱及扫描电镜表征了复合膜电极的电子传递阻抗及表面形态。发现聚酪氨酸膜能促进电极表面电子交换,有利于高灵敏Pb^(2+)传感器的研制。以复合... 详细信息

采用循环伏安法及原位镀铋制备了聚酪氨酸/Bi复合膜修饰玻碳电极(p-Tyr/Bi/GC),并用交流阻抗谱及扫描电镜表征了复合膜电极的电子传递阻抗及表面形态。发现聚酪氨酸膜能促进电极表面电子交换,有利于高灵敏Pb^(2+)传感器的研制。以复合膜电极对Pb2+的方波阳极溶出伏安响应电流探讨了聚酪氨酸修饰玻碳电极的最佳制备及测试条件。结果表明电极制备液中酪氨酸的最佳浓度为1.5 mmol·L^(-1),聚合圈数为15;测试液中Bi3+的最佳浓度为1.0μmol·L-1,pH值为6.0,富集电位为-1.20 V。在最佳条件下,复合膜电极对Pb2+的响应线性方程为:Ip(μA)=0.5032+54.68c(μmol·L-1)(r=0.9947),线性范围为0.01~0.16μmol·L^(-1),检出限(3S/k)为0.8 nmol·L^(-1)。复合膜电极具有灵敏度高、稳定性好、抗干扰能力强的特点,用于茶叶样品中铅的测定,回收率为90.6%~96.3%,相对标准偏差不大于3.9%。

关键词：聚酪氨酸铋玻碳铅方波阳极溶出伏安法