Label-free immunosensor based on interdigitated electrodes with Ni–Co nanowires

Micro & nano letters

article

Fu-Yuan Siao¹  Yaw-Jen Chang²  Hung-Ju Shih² 

[1] Department of Emergency Medicine, Changhua Christian Hospital;Department of Mechanical Engineering, Chung Yuan Christian University

关键词: nickel;    nanosensors;    nanowires;    biosensors;    electrodeposition;    printed circuits;    chromatography;    electrochemical electrodes;    membranes;    thin film sensors;    biological techniques;    cobalt;    label-free immunosensor;    interdigitated electrodes;    electroanalytical measurement;    porous anodic alumina oxide membrane;    immobilised metal affinity chromatography;    nanowires;    NW;    flat film;    printed circuit board treatment;    electrodeposition method;    histidine-tagged capture agent;    Ni-Co;   

DOI  :  10.1049/mnl.2018.5135

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The aim of our study was to investigate the antiviral activity of the Corchorus olitorius family Tiliaceae cultivated in Iraq against measles virus, and to demonstrate an overview about chemical constituents and pharmacological activity of Corchorus olitorius L. About150 gm Leaves of Corchorus. olitorius were defatted by maceration in hexane for 24 hrs. The defatted plant materials were subjected for extraction after filtration using Soxhlet apparatus, with aqueous methanol 85% as a solvent extraction for 24 hours, the extract was filtered, and the solvent was evaporated under reduced pressure using a rotary evaporator to get a dry extract of about 12 gm. About 4 gm from the residue was suspended in 100ml water, about 3-4ml of 5% sodium hydroxide was added to obtain a basic solution having PH 10 and partitioned with ethyl acetate (3x100ml), the aqueous layer collected and evaporated to dryness. MTT-cell viability assay (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) was conducted on 96-well plates (Falcon), Vero cells were seeded at 1× 104 cells/well to obtain a multiplicity of infection (MOI 10), and at 5 × 103 cells/well to obtain a multiplicity of infection (MOI 5). Different statistical result revealed a significant antiviral activity of the aqueous layer of Corchorus olitorius leaves against measles virus. The preliminary phytochemical tests showed the presence of phenols and flavonoids in the aqueous layer of Corchorus olitorius leaves. The antiviral activity of Corchorus olitorius leaves is mainly due to the phenolics and flavonoids that detected in the aqueous layer.

【 授权许可】

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