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Tailoring the Meso-Structure of Gold Nanoparticles in Keratin-Based Activated Carbon Toward High-Performance Flexible Sensor

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Nano-Micro Letters 2020年第9期12卷 136-146页

作者： Aniruddha BPatil Zhaohui Meng ronghui Wu Liyun Ma Zijie Xu Chenyang Shi Wu Qiu Qiang Liu Yifan Zhang Youhui lin Naibo lin Xiang Yang Liu Research Institute for Soft Matter and Biomimetics Fujian Provincial Key Laboratory for Soft Functional Materials ResearchDepartment of PhysicsCollege of MaterialsXiamen UniversityXiamen 361005People’s Republic of China Department of Chemistry M.D.CollegeParelMumbai 400012India Department of Physics National University of Singapore2 Science Drive 3Singapore 117542Singapore

Flexible biosensors with high accuracy and reliable operation in detecting pH and uric acid levels in body fluids are fabricated using well-engineered metaldoped porous carbon as electrode *** gold nanoparticles@N-doped carbon in situ are prepared using wool keratin as both a novel carbon precursor and a *** conducting electrode material is fabricated at 500℃ under customized parameters,which mimics A-B type(two different repeating units) polymeric material and displays excellent deprotonation performance(pH sensitivity).The obtained pH sensor exhibits high pH sensitivity of 57 mV/pH unit and insignificant relative standard deviation of 0.088%.Conversely,the composite carbon material with sp^2 structure prepared at 700℃ is doped with nitrogen and gold nanoparticles,which exhibits good conductivity and electrocatalytic activity for uric acid *** uric acid sensor has linear response over a range of 1-150 μM and a limit of detection 0.1 μ*** results will provide new avenues where biological material will be the best start,which can be useful to target contradictory applications through molecular engineering at mesoscale.

关键词： Wool keratin Structure engineering Metal nanoparticle carbon composite Health monitoring Flexible biosensor

党的二十大精神融入高校学生学业评价改革的思考及探索

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科技资讯 2024年第15期22卷 1-4页

作者：李壮林年冬李荣辉尹建川王宏波广东海洋大学广东湛江524000

党的二十大报告对建设高质量的教育体系具有重大指导意义。推进教育强国建设,高校需要在注重学生创新创业能力培养基础上开展学生学业评价改革。由于传统的学业评价方式过于侧重学科知识和技能的测量,故应从多方面提出了优化学生学业评... 详细信息

党的二十大报告对建设高质量的教育体系具有重大指导意义。推进教育强国建设,高校需要在注重学生创新创业能力培养基础上开展学生学业评价改革。由于传统的学业评价方式过于侧重学科知识和技能的测量,故应从多方面提出了优化学生学业评价改革的相关策略,包括优化教学设计策略、提供多元化评价方式等,着重激发大学生创新意识和创造思维,为推进我国实现第二个百年奋斗目标不懈努力。

关键词：党的二十大精神学生学业评价高等院校教学改革

基于OptiStruct的驱动桥壳轻量化设计

同方期刊数据库博看期刊评论

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机械传动 2019年第4期43卷 83-88,97页

作者：宋晓飞林荣会李帅朝乔运发纪玉龙邓娟郭志田青岛理工大学机械与汽车工程学院山东青岛266520 青特集团有限公司山东青岛266000

驱动桥壳作为汽车的重要承载部件,必须满足刚度和强度的要求,传统的设计理念为了保证性能需求,一般采用冗余设计。通过CAD/CAE的一体化建模技术,采用三维数学模型与有限元模型之间的联合设计,基于OptiStruct的尺寸优化算法实现驱动桥壳... 详细信息

驱动桥壳作为汽车的重要承载部件,必须满足刚度和强度的要求,传统的设计理念为了保证性能需求,一般采用冗余设计。通过CAD/CAE的一体化建模技术,采用三维数学模型与有限元模型之间的联合设计,基于OptiStruct的尺寸优化算法实现驱动桥壳的轻量化设计。利用CATIA创建驱动桥壳三维数学模型,导入HYPERMESH力学、动力学分析、疲劳分析验证驱动桥壳满足使用标准,再在OptiStruct求解器做优化分析,经过多次迭代计算,得到分析结果。优化后的桥壳成质量为152. 042 kg,减少了50. 075 kg,减重达到24. 78%,然后对优化后驱动桥壳进行分析,最后对试制的优化后桥壳进行疲劳台架试验,分析和试验结果表明,优化后桥壳满足试验标准,对同类型的轻量化设计有一定的参考价值。

关键词：桥壳有限元法轻量化尺寸优化

一例钙金属-有机骨架的合成及其结构与性质分析

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华侨大学学报(自然科学版) 2024年第5期45卷 603-609页

作者：王伟娟黄丽丽林知秋卢冬飞史荣会刘耀洪俊明华侨大学化工学院福建理工大学生态环境与城市建设学院福建省恒申化工科技有限公司

通过溶剂热合成法，获得一例钙金属-有机骨架[Ca2（CH3COO）3（HCOO）],其中，甲酸配体由溶剂N,N-二甲基甲酰胺原位分解生成。利用X-射线单晶衍射、傅里叶变换红外光谱、热重分析和荧光分光光度法，对[Ca2（CH3COO）3（HCOO）]晶体结构... 详细信息

通过溶剂热合成法，获得一例钙金属-有机骨架[Ca2（CH3COO）3（HCOO）],其中，甲酸配体由溶剂N,N-二甲基甲酰胺原位分解生成。利用X-射线单晶衍射、傅里叶变换红外光谱、热重分析和荧光分光光度法，对[Ca2（CH3COO）3（HCOO）]晶体结构和性质进行分析与表征。结果表明：该化合物属于三斜晶系，p1空间群，晶胞参数为a=0.671 86（6） nm,b=0.975 79（7） nm,c=0.984 60（9） nm,V=0.563 05（9） nm3,Z=1;Ca（Ⅱ）离子（8配位）之间通过共用乙酸上的羧基氧形成一维链，链的两侧由羧基氧与Ca（Ⅱ）离子（7配位）配位形成三明治的夹层，每个夹层不断重复与乙酸配体配位形成二维层，层与层之间通过甲酸配体的两个羧基氧分别与层中两种配位模式的Ca（Ⅱ）离子连接形成三维有机骨架；该化合物具有良好的稳定性，在紫外光下可观察到绿光。

关键词：钙金属-有机骨架溶剂热合成法晶体结构荧光性质

Syntheses,Crystal Structures and Photoluminescence Properties of Two Cadmium(Ⅱ)Coordination Polymers

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Journal of Donghua University(English Edition) 2020年第3期37卷 211-216页

作者： lin Xiaoying ZHONG Qinhua SU Ting SHI ronghui CHEN Jun LIU Zhipeng GONG lingzhu School of Ecological Environment and Urban Construction Fujian University of TechnologyFuzhou 350118China

The solvothermal reaction of CdCl2·2.5H2O with terephthalic acid yields two new three-dimensional(3D)cadmium(II)coordination polymers(CPs),namely{[Cd(C8H4O4)Cl]·C2H8N}n and[Cd(C8H4O4)]n,we use the abbreviations CP1 and CP2 to refer to them,*** compounds are characterized in detail by single-crystal X-ray diffraction,powder X-ray diffraction,IR spectroscopy,elemental analysis and thermogravimetric analysis(TGA).The results indicate that compounds CP1 and CP2 are 3D frameworks,and both the compounds feature a uninodal 4-connected framework with a dia *** empty spaces of such 3D framework are filed by the other two identical frameworks,leading to a 3-fold interpenetrated *** addition,the photochemical properties of the frameworks are also *** two frameworks show strong solid-state fluorescence emission at 463 and 503 nm,respectively,which are obvious red-shift compared to the emission of ligand.

关键词： solvothermal synthesis terephthalic acid photoluminescence property crystal structure

Influence of Additives on the Solvothermal Synthesis in the Formation of Zn-MOF_5

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Journal of Donghua University(English Edition) 2018年第6期35卷 491-494页

作者： lin Xiaoying SU Ting ZHONG Qinhua SHI ronghui LIUMinyi LIU Yamin LU Dongfei Institute of Environmental Protection Fujian University of Technology College of Ecological Environment and Urban Construction Fujian University of Technology

The influences of additives of NH_3,HCl,KOH and CH_3OH on the solvothermal synthesis of the Zn-based metal-organic frameworks(Zn-MOF_5s)were *** X-ray diffraction(PXRD),thermal gravimetric analysis(TGA),Fourier translation infrared spectroscope(FT-IR),N_2adsorption/desorption at 77 K and CO_2sorption measurements were used to characterize the as-prepared Zn-MOF_*** experimental results showthat additives of NH_3,CH_3OH,HCl and KOH in the synthesis of the Zn-MOF_5s do not change the underlying topology,but they are extremely sensitive to the pore textural properties,thus changing the CO_2adsorption *** would lower the pore width and the surface area,and then lower the CO_2adsorption capacity of Zn-MOF_5s.

关键词： Zn-MOF5s additives influence CO2 adsorption capacity nanocrystal

Trimming Behavior of H_2-Loaded Silica Fiber Modeled by Rate Equations

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光学学报 2003年第S1期23卷 96-97页

作者： lin Li, Haiwen Cai, Kan Gao, ronghui Qu, and Zujie Fang (Shanghai Institute of Optics and Fine Mechanics, CAS, P. R. China) Shanghai Institute of Optics and Fine Mechanics CAS P. R. China

Photosensitivity behavior of H2-loaded silica fiber was modeled by rate equations for activated particles. The theoretical deductions give a close explanation to experimental phenomena on post-exposure growth in fiber... 详细信息

关键词： of be on UV by Trimming Behavior of H2-Loaded Silica Fiber Modeled by Rate Equations into

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慢阻肺急性加重期患者小气道功能及结构改变

分子影像学杂志 2019年第3期42卷 388-392页

作者：钟景良吴嘉锟林荣辉林锦锋姚慧文江门市新会区人民医院重症医学科广东江门529100 江门市新会区人民医院呼吸内科广东江门529100

目的评价慢阻肺急性加重期患者小气道功能结构的变化。方法59例慢阻肺急性加重期患者在入院24h内(Visit1)、出院前1d(Visit2)、出院后第8天(Visit3)、第21天(Visit4)完成CAT评分、mMRC评分、SGRQ评分、脉冲震荡、肺通气功能、高分辨CT(H... 详细信息

目的评价慢阻肺急性加重期患者小气道功能结构的变化。方法59例慢阻肺急性加重期患者在入院24h内(Visit1)、出院前1d(Visit2)、出院后第8天(Visit3)、第21天(Visit4)完成CAT评分、mMRC评分、SGRQ评分、脉冲震荡、肺通气功能、高分辨CT(HRCT,Visit1、Visit4)。结果随访过程中总气道阻力(R5)、中心气道阻力(R20)、外周气道阻力(R5-R20)显著下降(P<0.05),外周弹性阻力及响应频率(Fres)在Visit2后未显著下降。右上叶尖段支气管第3级分支气管壁径线、伴行肺动脉直径(BWT)较前明显下降(P<0.05)。在Visit4-Visit1间,ΔR5、ΔR20、ΔR5-R20、ΔZ5、ΔFres分别与ΔCAT、ΔmMRC、ΔSGRQ呈正相关(P<0.05);ΔBWT与ΔCAT、ΔmMRC、ΔSGRQ分别呈正相关(r=0.45、0.37、0.92,P<0.05);ΔWT与ΔCAT、ΔSGRQ分别呈正相关(r=0.42、0.40,P<0.05)。结论脉冲震荡、高分辨CT代表的小气道功能、结构指标随病情恢复而明显改善,可以良好评价急性加重期的治疗策略。

关键词：慢阻肺急性加重期小气道功能及结构脉冲震荡技术高分辨CT

Palladium nanoparticles/wool keratin-assisted carbon composite-modified flexible and disposable electrochemical solid-state pH sensor

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Chinese Physics B 2022年第2期31卷 634-640页

作者： Wenli Zhang Xiaotian Liu Youhui lin Liyun Ma linqing Kong Guangzong Min ronghui Wu Sharwari K.Mengane Likun Yang Aniruddha B.Patil Xiang Yang Liu Department of Plysics College of Materialsand Shenzhen Research Institute of Xiamen UniversityXiamcn University.Xiamen 361005China Department of Botany M.H.Shinde Mahavidyalaya.TisangiKolhapur 416226India Department ot Chemitry M.D.CollegeParelMumbai-400012India

Several p H-dependent processes and reactions take place in the human body;hence,the p H of body fluids is the best indicator of disturbed health ***,accurate and real-time diagnosis of the p H of body fluids is complicated because of limited commercially available p H ***,we aimed to prepare a flexible,transparent,disposable,userfriendly,and economic strip-based solid-state p H sensor using palladium nanoparticles(Pd NPs)/N-doped carbon(NC)composite *** Pd NPs/NC composite material was synthesized using wool keratin(WK)as a *** insitu prepared Pd NPs played a key role in the controlled switching of protein structure to the N-doped carbon skeleton withπ–πarrangement at the mesoscale level,which mimics the A–B type polymeric structure,and hence,is highly susceptible to H+*** optimized carbonization condition in the presence of Pd NPs showed that the material obtained using a modified Ag/Ag Cl reference electrode had the highest p H sensitivity with excellent stability and *** optimized p H sensor showed high specificity and selectivity with a sensitivity of 55 m V/p H unit and a relative standard deviation of 0.79%.This study is the first to synthesize Pd NPs using WK as a stabilizing and reducing *** applicability of the sensor was investigated for biological samples,namely,saliva and gastric *** proposed protocol and material have implications in solid-state chemistry,where biological material will be the best choice for the synthesis of materials with anticipated performance.

关键词： palladium nanoparticle electrochemical sensor solid-state pH sensor flexible strip sensor