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Preparation of Functional Magnetic Nanoparticles and its Application in Diagnostic Analysis

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Chinese Chemical Letters 2005年第8期16卷 1059-1062页

作者： Qiong CHENG tu zhi peng Ai Li LIU Department of Chemistry Xixi CampusZhejiang UniversityHangzhou 310028 College of biological and Chemical Engineering Jiaxing Coliege Jiaxing 314001

The magnetic nanoparticles modified with carboxyl functional group were synthesized and characterized. These nanoparticles covalently bound with hepatitis B surface antibody（HBsAb）, were used to detect hepatitis B surface antigen （HBsAg） in immunovoltammetry. The detection limit was found to be 0.06 ng/mL, which is much higher than that of enzyme-linked immunosorbent assay （ELISA） used in clinical analysis.

关键词： Functional magnetic nanoparficles synthesize characterization immunoassay electro chemical detection

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基于增益调制的激光成像准确度研究

光子学报 2016年第1期45卷 18-22页

作者：屠志鹏李思宁张大勇陆威哈尔滨工业大学光电子技术研究所哈尔滨150001

微通道板电压与增益对数理论上呈线性关系,为了更接近实际情况,根据已知的微通道板电压与增益对数的函数关系选取一组线性数据点,并在其基础上加一组随机数作为波动,得到新的电压与增益对数的关系,获得指数拟合公式,用于还原目标的距离... 详细信息

微通道板电压与增益对数理论上呈线性关系,为了更接近实际情况,根据已知的微通道板电压与增益对数的函数关系选取一组线性数据点,并在其基础上加一组随机数作为波动,得到新的电压与增益对数的关系,获得指数拟合公式,用于还原目标的距离信息.对成像准确度进行理论分析,结果表明成像准确度与系统信噪比和增益调制函数有关,且信噪比越高,距离准确度越高.测量了微通道板增益与电压的关系曲线,在不同电压条件下照射同一距离同一目标得到回波图像,利用不同电压下回波图像灰度值之比得到相对增益之比.分别在恒定增益和调制增益下,对距离成像系统60m的目标进行成像,利用增益曲线对所得的图像进行处理,准确还原出目标的距离信息,准确度达到分米量级.

关键词：激光成像距离选通增益调制非线性增益距离准确度

Deciphering the role of ultra-low-loaded rhodium in NiFe-MIL-53 for superior oxygen evolution reaction

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Journal of Energy Chemistry 2025年第1期100卷 77-86页

作者： Jinzhi Jia Jinhua Zhang Kailu Guo Lanyue Zhang Gening Du Hao You Junfeng Huang Mudong tu Hua Li Yong peng Wei Dou Cailing Xu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering School of Materials and Energy Lanzhou University College of Chemistry and Chemical Engineering Luoyang Normal University

Designing highly active and stable electrocatalysts of oxygen evolution reaction （OER） is one of the crucial *** this study,a novel OER electrocatalyst,NiFe-MIL-53 modified with ultra-low rhodium（Rh@NiFe-MIL-53）,is successfully prepared via the hydrothermal ***-situ Raman spectroscopy and electrochemical impedance spectroscopy reveal that the doped Rh accelerates the phase transformation of NiFe-MIL-53 and the in-situ formed Rh@NiFeOOH is the actual active *** importantly,the enhanced reversibility of electrochemical reconstruction between NiFeOOH and NiFe（OH）2after doping Rh is beneficial for improving the electrochemical stability of the catalyst.X-ray photoelectron spectroscopy spectra show the strong electronic interaction between single-atom Rh and Ni/Fe in Rh@***,theoretical calculations confirm that the integration of single-atom Rh into the NiFeOOH successfully reduces the band gap,regulates the d-band center （εd）,accelerates the charge transfer,and optimizes the adsorption behavior of oxygen-containing intermediates,thereby lowering the energy barrier of rate-determining ***,the optimized Rh@NiFe-MIL-53 exhibits excellent OER activity （240 mV） with a small Tafel slope of 48.2 mV dec-1and long-term durability (over1270 h at 10 m A cm-2and 110 h at 200 mA cm-2).This work presents a new perspective on designing highly efficient OER electrocatalysts.

关键词： NiFe-MIL-53 Rh Electrochemical reconstruction Catalytic mechanism Oxygen evolution reaction

Extramedullary plasmacytoma with the uvula as first affected site:A case report

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World Journal of Clinical Oncology 2025年第1期16卷 53-58页

作者： Jing Yang Hui peng Sheng-Ke tu Min Li Kui Song Department of Hematology The First Affiliated Hospital of Jishou UniversityJishou 416000Hunan ProvinceChina Department of Pharmacy The First Affiliated Hospital of Jishou UniversityJishou 416000Hunan ProvinceChina

BACKGROUND Extramedullary plasmacytoma(EMP)represents one of the rarer forms of plasma cell malignancies,capable of impacting a variety of tissues and organs throughout the *** majority of EMP cases are predominantly found in the head and neck region,especially within the laryngopharynx,as well as in the gastrointestinal *** there have been documented instances of oropharyngeal involvement in EMP cases in the academic literature,it is important to note that EMP specifically affecting the uvula is exceedingly ***,it is noteworthy that over 60% of epithelial carcinomas in the upper respiratory tract and oropharynx tend to metastasize to the cervical lymph nodes,indicating a propensity for regional spread in these types of *** this context,we present a rare case of extramedullary plasmacytoma where the uvula served as the initially affected *** case emphasizes the need for heightened awareness among clinicians regarding such unusual comorbidities,as early recognition and diagnosis can significantly influence patient management and treatment *** addition,a review of the relevant literature is included to further educate and inform healthcare professionals about this rare presentation,ultimately aiming to enhance clinical understanding and improve patient care in similar *** SUMMARY A 51-year-old man was admitted to our hospital because of a slowly enlarging neck mass.A physical examination revealed a palpable left lymph node,and magnetic resonance imaging(MRI)of the oropharynx and the neck showed a soft tissue mass in the oropharynx and enlargement of multiple lymph nodes in the *** soft tissue mass was diagnosed as plasmacytoma by immunohistochemical *** immunoglobulins and bone marrow biopsy showed normal ***,we diagnosed that as EMP of the *** four cycles of adjuvant chemotherapy dominated by bortezomib,MRI reexamination showed a significant reduction of the mass

关键词： Extramedullary plasmacytoma Plasmacytoma Uvula Multiple myeloma Case report

Electric field manipulation of magnetic skyrmions

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Rare Metals 2022年第12期41卷 4000-4014页

作者： Ya-Dong Wang zhi-Jian Wei Hao-Ran tu Chen-Hui Zhang zhi-peng Hou Guangdong Provincial Key Laboratory of Optical Information Material and Technology&Institute for Advanced Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China Dongguan University of Technology Dongguan 523808China Physical Science and Engineering Division(PSE) King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia

Magnetic skyrmions are vortex-like swirling spin textures that are promising candidates for carrying information bits in future magnetic memories or logic *** build skyrmionic devices,researchers must electrically manipulate magnetic skyrmions to enable easy integration into modern semiconductor *** operation generally uses a spin-polarized current,which unavoidably causes high energy dissipation and Joule ***,the electric-field strategy is a hopeful alternative for electrically manipulating the skyrmions due to the strategy’s negligible Joule heating and low energy *** this review,we systematically summarize the theoretical and experimental development of the electricalfield manipulation of magnetic skyrmions over the past *** review the following magnetic systems and physical mechanisms:(ⅰ)ultra-thin multilayer films with accumulation and release of interfacial charge,(ⅱ)singlephase multiferroic material with magneto-electric coupling,(ⅲ)ferromagnetic/ferroelectric(FM/FE)multiferroic heterostructure with magneto-elastic ***,we consider future developmental trends in the electric-field manipulation of magnetic skyrmions and other topological magnetic domain structures.

关键词： Magnetic skyrmion Electric field Low energy cost Dzyaloshinskii-Moriya interaction(DMI)

理论研究IIB族金属二氢化物分子的基态性质

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原子与分子物理学报 2025年第3期42卷 1-7页

作者：张志鹏杨培龙涂喆研李仁忠西安工程大学理学院西安710048 西安工程大学环境与化学工程学院西安710048

基于小核能量一致性相对论赝势,采用密度泛函理论和耦合簇理论,分别在标量和二分量水平上计算研究了MH_(2)(M=Zn,Cd,Hg,Cn)分子的平衡键长和振动频率.计算结果显示,HgH_(2)和CnH_(2)的自旋轨道耦合效应较为明显.采用的8种泛函总体较好... 详细信息

基于小核能量一致性相对论赝势,采用密度泛函理论和耦合簇理论,分别在标量和二分量水平上计算研究了MH_(2)(M=Zn,Cd,Hg,Cn)分子的平衡键长和振动频率.计算结果显示,HgH_(2)和CnH_(2)的自旋轨道耦合效应较为明显.采用的8种泛函总体较好地评估了自旋轨道耦合效应.耦合簇理论计算的ZnH_(2)、CdH_(2)、HgH_(2)的键长和Σ_(u)振动频率与实验值偏差略大,这可能是由于其多参考态特性较明显.二分量PBE泛函计算的键长和Σ_(u)振动频率与实验值最接近.目前最重的CnH_(2)相关研究未见报道,研究给出了其键长和振动频率的理论值.

关键词：金属二氢化物密度泛函理论耦合簇理论标量相对论自旋轨道耦合

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近红外光热转换纳米晶研究进展

中国光学 2017年第5期10卷 541-554页

作者：李欣远纪穆为王虹智涂国鹏万晓冬刘佳佳刘佳徐萌张加涛北京理工大学材料学院结构可控先进功能材料与绿色应用北京市重点实验室北京100081

近红外光热转换纳米晶材料因其在近红外区(普遍位于780~1 400 nm)的高效光热转换性能,已广泛应用于光热杀死癌细胞、肿瘤治疗、海水淡化等领域。因其多样的液相制备方法和形貌控制、纳米结构复合、逐渐提高的光热转换效率以及表面易于... 详细信息

近红外光热转换纳米晶材料因其在近红外区(普遍位于780~1 400 nm)的高效光热转换性能,已广泛应用于光热杀死癌细胞、肿瘤治疗、海水淡化等领域。因其多样的液相制备方法和形貌控制、纳米结构复合、逐渐提高的光热转换效率以及表面易于药物修饰等优点,该材料在光热成像诊断、光热治疗等领域引起了学术界的广泛关注。本文综述了近红外光热转换纳米晶的研究进展,主要包括贵金属纳米晶、铜硫族半导体纳米晶、碳相关纳米晶以及这些纳米晶材料构成的复合结构,同时介绍了具有较高光热转换效率的表面等离子体共振(SPR)材料的研究进展,尤其是双模态SPR性质的耦合在光热转换领域的应用前景。基于其性能协同耦合的特性,双模态表面等离子体共振耦合的复合纳米晶将是近几年光热转换纳米晶发展的重要方向。

关键词：纳米晶近红外光热转换光热治疗表面等离子体共振

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Effects of ferrosilicon alloy,Si content of steel,and slag basicity on compositions of inclusions during ladle furnace refining of Al-killed steel

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Journal of Iron and Steel Research International 2020年第9期27卷 1011-1017页

作者： Jian-fei Xu Kun-peng Wang Ying Wang zhi-dong Qu Xing-kuang tu Zenith Steel Group Co. Ltd.Changzhou 213000JiangsuChina

To obtain solid Al2O3 or MgO·Al2O3 inclusions in ladle furnace(LF)refining process and achieve ultra-low total oxygen content in steel through subsequent Ruhrstahl Heraeus degassing,the effects of ferrosilicon alloy,Si content of steel,and slag basicity on the compositions of inclusions during LF refining were investigated in Al-killed ***2O3 inclusions could be transformed into CaO-Al2O3-MgO-CaS inclusions after adding ferrosilicon alloy in the LF refining process as this alloy contains some CaSi alloy *** addition of all ferrosilicon alloys required for the steel in the tapping process could eliminate the influence of Ca in ferrosilicon alloy on the compositions of *** in liquid steel had a significant influence on the compositions of inclusions during LF refining when CaO-Al2O3-SiO2-MgO slag with high basicity of 7.0 was *** was because[Ca]produced by the reaction of CaO and[Al]could be consumed more readily by SiO2 in Si-free steel than in Si-containing steel,which was confirmed by the difference of total calcium content between Si-free and Si-containing *** a result,Al2O3 and MgO·Al2O3 inclusions were retained in Si-free steel,whereas calcium aluminate inclusions were found in Si-containing *** CaO-Al2O3-SiO2-MgO slag with low basicity of 2.8,Al2O3 and MgO·Al2O3 inclusions were obtained after LF refining in Si-containing steel when all ferrosilicon alloys required for the steel were added in the tapping *** was because the reaction of CaO and[Al]was weak,and residual[Ca]in the steel could be rapidly consumed by SiO2 in low-basicity slag owing to the low activity of CaO and high activity of SiO2,leading to a low total calcium content of 0.0003%in Si-containing steel.

关键词： Inclusion Ferrosilicon alloy Si content Basicity LF refining

L_(4/5)椎间隙影像测量与性别和年龄的相关分析

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中国矫形外科杂志 2021年第6期29卷 536-539页

作者：黄培培马亚超凃志鹏解放姚洲王哲胡学昱罗卓荆空军军医大学第一附属医院骨科陕西西安710032

[目的]测量L_(4/5)椎间隙影像参数,并分析其相关因素。[方法]收集2013年1月~2014年6月在本院行腰椎MRI检查的患者,共269人符合纳入标准,列入本研究,测量L_(4/5)椎间高度、终板长度和椎间高度指数。[结果] 269例中,男137例,女132例。将... 详细信息

[目的]测量L_(4/5)椎间隙影像参数,并分析其相关因素。[方法]收集2013年1月~2014年6月在本院行腰椎MRI检查的患者,共269人符合纳入标准,列入本研究,测量L_(4/5)椎间高度、终板长度和椎间高度指数。[结果] 269例中,男137例,女132例。将其按年龄分为三组:青年组(20~40岁),中年组(40~60岁),老年组(60岁以上)。各年龄组的性别构成差异无统计学意义(P>0.05)。各年龄组男性的椎间高度均大于女性,其中,中年组和老年组两性别间的差异有统计学意义(P0.05)。各年龄组男性的椎间高度指数均显著大于女性(P0.05),但是老年组与青年和中年组间上述指标差异均有统计学意义(P<0.05)。相关性分析显示,年龄与椎间高度呈负相关(r=-0.412,P<0.001),年龄与终板长度呈正相关(r=0.197, P=0.037),年龄与椎间高度指数呈显著负关相(r=-0.588, P<0.001)。相比之下,年龄与椎间高度指数相关性的r值最大。[结论] 60岁以前,L_(4/5)椎间高度随着年龄的增长而增大,但在60岁以后,L_(4/5)椎间高度显著下降,椎间高度指数可更好地反映L_(4/5)的年龄变化与性别间差异。

关键词：椎间高度椎间高度指数 L_(4/5)椎间隙年龄性别