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Showing 1 to 6 of 6 for “"aptasensor"”.
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QCM Aptasensor for Rapid and Specific Detection of Avian Influenza Virus
… was 1 HAU or higher. The detection limit of the aptasensor was 1 HAU with a detection time of 1 h. The capture of the target virus on to the surface of QCM sensor and the binding of magnetic nanobeads with the virus was confirmed with electron microscopy. Aptamers have unlimited shelf life and …
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Selection and characterization of DNA aptamers for estradiol and ethynylestradiol for aptasensor development
… to evaluate the potential of DNA aptamers and aptasensors to detect small organics in natural waters, the following objectives were pursued: (1) critically review DNA aptamers and aptasensors developed for small organic molecules and assess their use for monitoring environmentally relevant …
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Ultrasensitive DNA aptasensors based on exponential amplification reaction
… general method to enhance the sensitivity of DNA aptasensors by coupling them with an isothermal DNA amplification technique known as exponential amplification reaction (EXPAR). The method involves two steps: (1) first, the target-induced structure-switching of DNA aptamers causes the release of …
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The Biomedical Application of Conducting Polymers for the Electrochemical Detection of Diseases
… of each sensor was characterized The adenosine aptasensor had a limit of detection of 2.33 nM and a linear range of 9.6 nM to 600 μM, while the mucin 1 aptasensor had a limit of detection of 5.92 fg/mL for the short mucin 1 peptide and 92.14 pg/mL for the long mucin 1 peptide. The mucin 1 …
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A Bifunctional Nanocomposites Based Electrochemical Biosensor for In-field Detection of Pathogenic Bacteria in Food
… in the pure culture. The third electrochemical aptasensor was developed to detect S. Typhimurium based on the concept of the bifunctional nanocomposites. The ssDNA aptamers were used as the biorecognition element. The achieved LOD in the pure culture was 96 cfu/ml. The biosensors developed in …
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Microfluidic Selection and Applications of Aptamers
… achieved via the development of a microfluidic aptasensor for cocaine, which utilizes aptamer-coated microbeads and fluorescent detection. Secondly, a technology necessary for on-chip integration of SELEX is developed: a novel bead-based polymerase chain reaction (PCR) protocol which vastly …