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Optical Tweezers (OT) are able to trap/manipulate dielectric particles with few microns in a contactless manner due to forces exerted on them by a strongly focused optical beam. OT are being applied in Biology/Medicine, especially Optical Fiber Tweezers (OFT), for being simpler and more flexible than the conventional setups. Despite of the trapping phenomena of symmetrical particles by OFTs being...
. Immunosensors can play an important role in the improvement of veterinary diagnostics in areas such as the diagnosis of diseases, drug detection and food quality control, by providing applications with rapid detection, high sensitivity and specificity. Associated with advances in biochemistry, biotechnology, electronics and microfabrication, new transduction devices that translate a biological...
The increasing concentration of nitrite in groundwater, rivers and lakes brings serious risks to the public health and to the environment. The aim of this work was the development of an optical biosensor for quantifying nitrite based on the activity of cytochrome cd 1 nitrite reductase immobilised in controlled pore glass (CPG) beads. The developed biosensor operates by measuring the optical...
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