共 25874 条结果
Biosensors & bioelectronics
2008
Qiao Y, Jian F, Bai Q
在温和条件下首次合成尿苷一磷酸锆(Zr(UMP)2·H2O)多孔纳米颗粒,并将其用于肌红蛋白(Mb)生物偶联以实现直接电子转移。紫外-可见光谱和共振拉曼光谱表明,Zr(UMP)2·H2O 膜中的 Mb 保持与天然态相似的二级结构。Mb–Zr(UMP)2·H2O 偶联膜修饰玻璃碳(GC)电极后,呈现清晰、准可逆循环伏安峰,反映 Mb ...
电化学生物传感器
检测:过氧化氢(H2O2);样品基质:0.1 M 磷...
LOD: 1.52 μM;线性范围: 3.92–180.14 ...
Biosensors & bioelectronics
2008
Deng C, Chen J, Chen X, Xiao C 等 6 人
由于掺杂碳纳米管具有独特的物理化学性质,其在生物分析中备受关注。本文以葡萄糖氧化酶(GOD)为模型酶,在硼掺杂碳纳米管/玻碳(BCNTs/GC)电极上研究 GOD 的直接电化学行为。循环伏安法表明,在 0.1 M 磷酸盐缓冲液(pH 6.98)中,BCNTs 基酶电极上出现一对清晰、准可逆的氧化还原峰,说明 GOD 与电极之间发生直...
电化学生物传感器
检测:葡萄糖(Glucose);样品基质:0.1 M...
LOD: 0.01 mM (S/N = 3);线性范围: 0....
Bioprocess and biosystems engineering
2008
Shi Q, Han E, Shan D, Yao W 等 5 人
本文报道了一种基于层状双氢氧化物(LDHs)/壳聚糖(CHT)复合基质固定化葡萄糖氧化酶(GOD)的高性能安培葡萄糖生物传感器。该复合基质兼具无机与有机材料优点,有利于提高传感器稳定性。该杂化材料兼具无机LDHs的层状结构、亲水性和离子交换特性,以及有机生物聚合物CHT的成膜性、生物相容性和黏附性,可在不使用戊二醛交联剂的情况下将G...
电化学生物传感器
检测:葡萄糖(glucose);样品基质:0.1 M...
LOD: 0.1 μM;线性范围: 1×10^-6–3×10^...
Molecular & cellular proteomics : MCP
2008
Yue QX, Cao ZW, Guan SH, Liu XH 等 10 人
灵芝(Ganoderma lucidum)三萜类成分可抑制多种癌细胞生长,被认为是其抗肿瘤作用的基础。灵芝酸D(ganoderic acid D, GAD)是灵芝三萜主要成分之一。本文以 HeLa 人宫颈癌细胞为模型,发现 GAD 处理 48 h 后以剂量和时间依赖方式抑制细胞增殖,IC50 为 17.3±0.3 μM;流式细胞术和...
表面等离子共振(SPR)生物传感器
检测:灵芝酸D(ganoderic acid D, ...
原文未报告 LOD、线性范围、灵敏度斜率或相关系数。
Bioelectrochemistry (Amsterdam, Netherlands)
2008
Chen G, Zhu X, Meng F, Yu Z 等 5 人
本报告将去铁蛋白(apoferritin)作为稳定的生物纳米材料,与血红蛋白(Hb)共同修饰于热解石墨电极表面。借助去铁蛋白,Hb 在较宽 pH 范围内实现了快速的直接电子转移反应,表明去铁蛋白可改善血红素蛋白在电极界面的电子传递。此外,作为酶的 Hb 对过氧化氢(H2O2)反应表现出良好的电催化活性,还原峰电流与 H2O2 浓度在...
电化学生物传感器
检测:过氧化氢(hydrogen peroxide,...
线性范围: 1.0×10−5 M–4.0×10−3 M;灵敏度...
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
2008
dos Santos Leal TC, Crispim VR, Frota M, Kelecom A 等 5 人
本研究旨在分析低剂量电离辐射对放射性废物库周边生物样品造成的突变效应,并将其作为环境生物监测手段。研究选择紫露草(Tradescantia pallida)作为生物指示系统,利用微核试验评估其对辐射剂量/反应关系的敏感性。实验在巴西多个核废物库附近预先选定的点位进行,每个点位设置三个生物监测位置,将盆栽植物暴露24 h。暴露后,通过...
其他(植物生物指示系统)
检测:低剂量电离辐射(low-dose ionizi...
原文未报告 LOD、线性范围、灵敏度斜率或相关系数;仅指出剂量...
Biomedical microdevices
2008
Zhang X, Daly JC, Li Y, Cao Y 等 7 人
根据论文标题,该文拟报道一种面向神经元生物电子接口的集成生物传感器芯片及微电子系统。其核心思想可能是将生物传感元件与微电子电路集成在同一芯片上,用于记录、监测或刺激神经元的电生理活动,从而建立生物组织与电子器件之间的接口。由于提供的文本仅包含标题、作者、出版信息和撤回声明,未包含摘要、引言、实验方法、器件结构、材料组成、检测对象、信...
其他(神经元生物电子接口芯片)
检测:神经元(neurons);样品基质:细胞/组织...
未提供(原文未报告LOD、线性范围、灵敏度斜率或R^2)
Sensors and actuators. B, Chemical
2007
Owen TW, Al-Kaysi RO, Bardeen CJ, Cheng Q
The development and characterization of a quartz crystal microbalance (QCM) sensor for the direct detection of aerosolized influenza A virions is reported. Self-assemb...
Sensors and actuators. B, Chemical
2007
Petrosova A, Konry T, Cosnier S, Trakht I 等 10 人
We describe herein a newly developed optical immunosensor for detection of antibodies directed against antigens of the Ebola virus strains Zaire and Sudan. We employed...
Sensors (Basel, Switzerland)
2007
Vestergaard M', Kerman K, Tamiya E
Electrochemical-based protein sensors offer sensitivity, selectivity and reliabilityat a low cost, making them very attractive tools for protein detection. Although th...
Sensors (Basel, Switzerland)
2007
Fu L, Li S, Zhang K, Chen IH 等 6 人
The magnetostrictive microcantilever (MSMC) as a high-performance transducer was introduced for the development of biosensors. The principle and characterization of MS...
Sensors (Basel, Switzerland)
2007
Pohanka M, Treml F, Hubálek M, Banďouchová H 等 6 人
Piezoelectric biosensor was used for diagnosis of infection by Francisellatularensis subsp. holarctica in European brown hares. Two kinds of experiments wereperformed ...
Sensors (Basel, Switzerland)
2007
Kulagina NV, Anderson GP, Ligler FS, Shaffer KM 等 5 人
Many organisms secrete antimicrobial peptides (AMPs) for protection againstharmful microbes. The present study describes detection of botulinum neurotoxoids A, Band E ...
Sensors (Basel, Switzerland)
2007
Baronas R, Gaidamauskait E E, Kulys J
The response of a peroxidase-based optical biosensor was modelled digitally.A mathematical model of the optical biosensor is based on a system of non-linear reaction-d...
Sensors (Basel, Switzerland)
2007
Ribeiro Teles FR, França Dos Prazeres DM, De Lima-Filho JL
A simple method for electrochemical detection of a synthetic 20-bpoligonucleotide sequence related with dengue virus genome was developed. Acomplimentary DNA probe seq...
Sensors (Basel, Switzerland)
2007
Scognamiglio V, Aurilia V, Cennamo N, Ringhieri P 等 13 人
D-Galactose/D-glucose-binding protein from E. coli (GGBP) is a monomer thatbinds glucose with high affinity. The protein structure of GGBP is organized in twoprincipal...
Sensors (Basel, Switzerland)
2007
Fang Y
Cell signaling mediated through a cellular target is encoded by spatial andtemporal dynamics of downstream signaling networks. The coupling of temporal dynamicswith sp...
Sensors (Basel, Switzerland)
2007
Alqasaimeh MS, Heng LY, Ahmad M
An optical urea biosensor was fabricated by stacking several layers of sol-gelfilms. The stacking of the sol-gel films allowed the immobilization of a Nile Bluechromoi...
Sensors (Basel, Switzerland)
2007
Abdullah J, Ahmad M, Heng LY, Karuppiah N 等 5 人
The fabrication of an optical biosensor by using stacked films where 3-methyl-2-benzothiazolinone hydrazone (MBTH) was immobilized in a hybrid nafion/sol-gelsilicate f...
Sensors (Basel, Switzerland)
2007
Blondeau-Patissier V, Boireau W, Cavallier B, Lengaigne G 等 7 人
Mass-sensitive electro-acoustic devices such as surface acoustic wave (SAW)micro-balances, capable to operate with aqueous media are particularly favorable for thedeve...