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Interdigitated electrode based electrical biosensors are prominent in biosensor field. The large number of finger electrodes as comb structure gain high sensitivity through electrical measurements. Listeria monocytogenes is a serious food borne pathogen based bacterium that can cause dangerous disease to human, some infection may result in death. In here, biosensor was prepared from 1μm gap Aluminum...
Bacteriophages are ideal recognition elements for bacterium because of specificity and high affinity in the field of biosensors. The effect of bimolecular immobilization directly influences the performance of biosensors, so orientation immobilization of bacteriophages is of great importance to the biosensors. This article reviews the recent progress in biosensors that used a variety of strategies...
This paper reports a biomimetic method inspired by clam to immobilize nanoparticles easily on microfluidic chips. In nature, clam predation is benefit from a mucus-covered system, used for trapping suspended plankton. Through mimicking the mucus-covered system by a common adhesive tape, we immobilized TiO2 nanoparticles easily and environmental friendly, obtaining a better immobilization amount than...
This paper presents the use of direct capacitance measurements for label free hybridization detection of ssDNA immobilized directly on a gold interdigitated array of microelectrodes (IDAM). Thiol modified 18 bases long Poly-dT ssDNA molecules were immobilized on the Au IDAM surface without the use of any isolative self assembled monolayer (SAM). Afterwards a Poly-dA ssDNA solution was deposited on...
High density gold nanoparticles (GNPs) on indium tin oxide (ITO) film coated glass have been prepared by electrochemical deposition from KAu(CN)2 solution. In this study, suitable applied potential ranges and deposition cycles are chosen to achieve high density GNPs on ITO surface. The potential utility of the high density GNP/ITO substrate are investigated. The superoxide dismutase (SOD) was immobilized...
To identify dairy cows suffering from subclinical mastitis, we used the fact that the number of neutrophils increases in raw milk. The neutrophils, a type of white blood cells, produce superoxide (O2). Therefore, the amount of O2 produced in raw milk can be used as an indicator for mastitis. To this end, we fabricated a device consisting of thin-film threee-lectrode systems. A self-assembled monolayer...
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