Results 1 to 10 of about 771,337 (153)

鼻咽癌血清中EB病毒核抗原-1和核抗原-2抗体的研究

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1992
用抗补体免疫荧光法检测鼻咽癌患者和对照人群中EB病毒核抗原-1(EBNA-1)和EB病毒核抗原-2(EBNA-2)抗体的水平。鼻咽癌组中两种抗体滴度都升高,以EBNA-1抗体上升明显;且EBNA-1抗体与总EBNA抗体水平的变化趋势相一致。鼻咽增生性病变组中EBNA-2抗体略占优势,该组中EBNA-2抗体水平升高可能与潜伏状态的EB病毒激活或再感染的早期阶段有关。
doaj   +1 more source

食管癌细胞核仁抗原单克隆抗体的制备 及其特性的初步鉴定 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2000
【目的】制备抗食管癌细胞核仁抗原单克隆抗体,用于寻找肿瘤的标志物和癌的病理诊断。【方法】以食管癌组 织核基质为抗原,采用足垫法免疫 Balb/c 小鼠,运用杂交瘤技术建立分泌特异性单抗的杂交瘤细胞株, 制备食管癌细胞抗原 片和食管癌冰冻切片,采用免疫组化检测并采用蛋白印迹法(Western blotting)分析, 鉴定是否为特异性单克隆抗体。【结果】 获得一细胞株( 1 -7/E)能稳定分泌抗体的杂交瘤细胞株,1-7/E 能与食管癌细胞和其他 10 种癌细胞的核仁反应, 不与正常食 管上皮细胞核仁反应。
刘乐和, 沈忠英
doaj   +1 more source

人类Foxm1b基因的原核表达、抗体制备及其对肝癌细胞中Foxm1b蛋白的识别 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2007
【目的】构建人类Foxm1b基因的原核表达载体,表达并纯化蛋白,制备多克隆抗体,并用此抗体检测肝癌细胞中Foxm1b基因的表达,为进一步研究Foxm1b基因的功能奠定基础。【方法】从GenBank中下载人类Foxm1b基因全长cDNA序列并用Pegene软件分析其可能的抗原表位,设计引物.应用RT—PCR获得含抗原表位的Foxm1b基因片段,重组人原核表达载体pET-28a,在大肠杆菌BL-21(DE31中诱导表达,应用亲和层析法获得纯度较高的原核表达蛋白并免疫大鼠制备多克隆抗体 ...
唐保东   +4 more
doaj   +1 more source

作用力对TNF-α抗原/抗体二维反应的影响

open access: yes, 2003
本文研究了作用力对TNF-α抗原/抗体二维反应的影响,结果表明,TNF-α抗原/抗体间的解离力满足正态分布,而非定值,且不同的作用力,回拉速率和接触时间影响抗原 ...
李宝霞, 龙勉, 叶志义
core   +2 more sources

一种抗对虾白斑综合症病毒(WSSV)线性抗原表位单链抗体的筛选

open access: yes, 2008
对虾白斑综合症病毒(WSSV)是全世界对虾养殖业最主要的病原体之一,虽然对该病毒的研究已较为深入,但目前仍无有效的防治方法。本研究应用噬菌体展示技术,构建了抗变性WSSV的单链抗体噬菌体展示文库,分别以WSSV病毒粒子和原核表达的囊膜蛋白VP28为靶分子对该文库进行淘选。经过数轮淘选后,得到5个能特异识别WSSV的单链抗体,且首次获得了能特异识别WSSV线性抗原表位的单链抗体P75E8。并通过免疫胶体金电镜分析,对5种单链抗体对应在病毒粒子上的表位进行了定位 ...
戴和平   +4 more
core   +2 more sources

In Situ Formation of L12‐Al3Ti Precipitates Enabling High Strength and Toughness in Oscillating Laser‐Welded Aluminum Alloy

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT A synergistic strategy combining a Ti interlayer and circular beam oscillation was proposed to improve the laser weldability of 6082‐T6 aluminum alloy. The Ti interlayer suppressed porosity, eliminated columnar grains, and significantly reduced grain size by 67.7% at the weld center. Mechanistically, fine L12‐Al3Ti precipitates clearly showing
Zhongping Hou   +8 more
wiley   +1 more source

Advanced Electrospun Nanofiber Epidermal Electronics for Electrophysiological Monitoring: From Conformal Interfaces to Multimodal Closed‐Loop Systems

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Epidermal bioelectronics is a transformative technology for continuous health monitoring and human‐computer interaction. However, the mechanical and physiological mismatch at the skin–device interface limits its long‐term application. Electrospun nanofiber membranes (ENMs), with their unique three‐dimensional hierarchical porous network and ...
Jiahua Ni   +7 more
wiley   +1 more source

抗体のN末端特異的蛍光標識による新規抗原検出法の開発 [PDF]

open access: yes, 2018
本研究では、既存のIgG抗体のN末端を特異的に蛍光標識することで、蛍光応答性抗体を作製する新規手法を開発した。弱酸性条件下で蛍光標識アルデヒドをIgG抗体と反応させることで、N末端特異的に蛍光基が付加され、得られたN末端蛍光標識抗体は、抗原の結合に伴って蛍光強度変化を示すことを明らかにした。また、FRETと蛍光消光解消を組み合わせることで、抗原を蛍光強度比の変化として検出可能な二重標識蛍光応答性抗体を合成すること、および、タグ化タンパク質の無細胞翻訳系での発現をリアルタイム検出することも可能であった ...
芳坂, 貴弘
core  

Nanocellulose‐Based Aerogels for Adsorption Applications in Environmental Remediation: State of Art, Challenges, and Future Outlook

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT The escalating severity of global environmental pollution necessitates the development of sustainable and efficient adsorption materials. Nanocellulose (NC), sourced from the most abundant natural polymer on earth, has shown great potential in this field due to its renewability, biodegradability, and exceptional nanoscale properties.
Yaqian Yu   +5 more
wiley   +1 more source

Synergistic Effect of Hydrophilic Surface and Nano‐Ag2O in TiO2‐Based Composites Coating on Antibacterial and Osteogenic Properties of Low Modulus Ti‐Mo‐Ag Alloy

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie   +11 more
wiley   +1 more source

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