Results 271 to 280 of about 133,030 (315)

Electrochemical detection in bioanalysis

Journal of Pharmaceutical and Biomedical Analysis, 1996
This review article presents an overview of current research on the use of amperometric electrochemical detectors in bioanalytical chemistry. Topics covered include microdialysis and ultrafiltration membranes for in-vivo sampling; microbore liquid chromatography; capillary electrophoresis; enzyme, photochemical, and chemical post-column reactions ...
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Electrochemical sensors for detection of biomolecules

2009 IEEE International Conference on Electro/Information Technology, 2009
A novel electrochemical sensor for detection of biomolecules was investigated. The sensor was fabricated using Micro Electro Mechanical System (MEMS) knowledge, and the sensor has the ability to transduce bimolecular signal directly into an electrical signal.
Zheng Li, Ahalapitiya H. Jayatissa, Lash Mapa, Ezzatollah Salari, A. C. Jayasuriya   +4 more
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Optical and electrochemical detection of DNA

Biomaterials, 1988
There is a growing demand for the production of a DNA biosensor with applications in medicine, the food industry, agriculture, veterinary science and environmental science. In this paper we describe methods for the optical and electrochemical detection of DNA using the enzyme horseradish peroxidase (EC 1.11.1.7) and glucose oxidase (EC 1.1.3.4).
DOWNS, MEA, WARNER, PJ, TURNER, APF, FOTHERGILL, JC   +3 more
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Electrochemical detection of carcinoembryonic antigen

Biosensors and Bioelectronics, 2018
In this work, a sandwich-type electrochemical immunosensor for carcinoembryonic antigen (CEA) detection has been constructed and tested. Unlike many other sensors using external electrochemical species in the electrolyte to generate an electrochemical signal, a ferrocene derivative has been integrated into the design of the sensor to provide an ...
Xuefang, Gu, Zhe, She, Tianxiao, Ma, Shu, Tian, Heinz-Bernhard, Kraatz   +4 more
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Electrochemical Detection of Lesions in DNA

Bioconjugate Chemistry, 2005
Electrochemical DNA-based sensors that exploit the inherent sensitivity of DNA-mediated charge transport (CT) to base pair stacking perturbations are capable of detecting base pair mismatches and some common base damage products. Here, using DNA-modified gold electrodes, monitoring the electrocatalytic reduction of DNA-bound methylene blue, we examine ...
Boal, Amie K., Barton, Jacqueline K.
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Discrete microfluidics with electrochemical detection

The Analyst, 2007
A droplet-based electrochemical digital magnetofluidics system has been developed. The system relies on the magnetic movement, in air, of different aqueous microdroplets containing magnetic microparticles--serving as the 'sample', 'blank', 'wash' and 'reagent' solutions--into and out of a three-electrode assembly.
Solitaire, Lindsay, Terannie, Vázquez, Ana, Egatz-Gómez, Suchera, Loyprasert, Antonio A, Garcia, Joseph, Wang   +5 more
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Electrochemical Detection of Fertility Hormones

Critical Reviews in Biomedical Engineering, 2019
Fertility hormone levels are constantly changing, but it is crucial for a woman to be able to monitor her fertility levels if she is interested in conceiving. Women and physicians often have a difficult time determining ovulation windows due to fluctuating menstrual cycles and inaccurate interpretations of hormone levels.
Mukund, Khanwalker, Jared, Johns, Mackenzie M, Honikel, Victoria, Smith, Stephanie, Maxwell, Sandhya, Santhanaraman, Jeffrey T, La Belle   +6 more
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Electrochemical detection and characterization of proteins

Biosensors and Bioelectronics, 2006
On-line detection of serum proteins is of clinical relevance, in detecting leaks and biofouling in hemofiltration equipment, biofilm growth on prosthetic devices, or hemolysis within a prosthetic or therapeutic device. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) were employed to detect and analyze micromolar concentrations ...
Matthew F, Smiechowski, Vadim F, Lvovich, Shuvo, Roy, Aaron, Fleischman, William H, Fissell, Alan T, Riga   +5 more
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Combining microfluidics and electrochemical detection

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
This paper describes two configurations that integrate electrochemical detection into microfluidic devices. The first configuration is a low-cost approach based on the use of PCB technology. This device was applied to electrochemiluminescence detection.
Rosaria, Ferrigno, Patrick, Pittet, Khaled, Stephan, Béatrice, Léca-Bouvier, Jean-Marc, Galvan, Louis, Renaud, Pierre, Morin   +6 more
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Strategies for Electrochemical Detection in Immunochemistry

Bioanalysis, 2009
In this review, the current status of research in electrochemical immunosensors is considered. We primarily focus on label-free and enzyme-labeled immunosensors, and the analytical capabilities of these devices are discussed. Moreover, the use of magnetic beads as new materials for immunosensors coupled with electrochemical sensing is also described ...
Sonia, Centi, Serena, Laschi, Marco, Mascini   +2 more
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