Results 221 to 230 of about 89,384 (267)

miRNA Electrochemical Detection

2015
Electrochemical genosensors hold great promise for point-of-care diagnostics and multiplexed platforms for fast, simple, and inexpensive miRNA analysis. A typical electrochemical biosensor consists of an electroactive hybridization indicator and a solid electrode with an immobilized short single-stranded nucleotide probe [1].
Xueji Zhang, Haifeng Dong, Yaping Tian
openaire   +1 more source

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
openaire   +2 more sources

Electrochemical Approach To Detect Apoptosis

Analytical Chemistry, 2008
This paper reports an electrochemical approach for detection of apoptosis. Here we prepare a gold electrode modified with a helix peptide ferrocene (Fc)-GDGDEVDGC. Fc is used as an electroactive reporter and the peptide as a recognition and cleavage site of caspase-3, which is a special proteinase to apoptosis.
Han, Xiao, Lei, Liu, Fanben, Meng, Junyi, Huang, Genxi, Li   +4 more
openaire   +2 more sources

Electrochemical Detection of Single Molecules

Accounts of Chemical Research, 1995
The electrochemical behavior of a single molecule can be observed by trapping a small volume of a dilute solution of the electroactive species between an ultramicroelectrode tip with a diameter of ∼15 nanometers and a conductive substrate. A scanning electrochemical microscope was used to adjust the tip-substrate distance (∼10 nanometers),
F R, Fan, A J, Bard
openaire   +2 more sources

Electrochemical detection in capillary electrophoresis

ELECTROPHORESIS, 1997
AbstractRecent advances in the design and application of electrochemical detection (EC) systems in capillary electrophoresis (CE) are reviewed, with the objective of providing the non‐electrochemist with a state‐of‐the‐art picture of CEEC instrumentation and an overview of the primary analytes and samples for which the technique is best suited.
P D, Voegel, R P, Baldwin
openaire   +2 more sources

Electrochemical aptasensor for tetracycline detection

Bioprocess and Biosystems Engineering, 2009
An electrochemical aptasensor was developed for the detection of tetracycline using ssDNA aptamer that selectively binds to tetracycline as recognition element. The aptamer was highly selective for tetracycline which distinguishes minor structural changes on other tetracycline derivatives.
Yoon-Jin, Kim, Yeon Seok, Kim, Javed H, Niazi, Man Bock, Gu   +3 more
openaire   +2 more sources

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
openaire   +2 more sources

Electrochemical nanosensors: Revolutionizing vitamin detection

Talanta
Electrochemical nanosensors offer remarkable capabilities for precise and selective vitamin detection, with transformative implications for healthcare, nutrition, and food industry quality control. Nanotechnology advancements have facilitated the creation of nanoscale sensors with customized properties, enhancing the efficacy of detecting vitamins ...
Surbhi Sharma, Shagun Gupta, Adesh K. Saini, Reena V. Saini, Ankur Kaushal   +4 more
openaire   +2 more sources

Conformationally Gated Electrochemical Gene Detection

ChemBioChem, 2004
AbstractThe synthesis and characterization of a 26‐base DNA hairpin containing both a redox‐active reporter (ferrocene) and terminal thiol functionality for electrochemical gene detection is described. This electrochemical DNA sensor exploits electron‐transfer dynamics that alter as a consequence of a large structural rearrangement (hairpin‐to‐duplex ...
Chad E, Immoos, Stephen J, Lee, Mark W, Grinstaff   +2 more
openaire   +2 more sources

Tape-Stripping Electrochemical Detection of Melanoma

Analytical Chemistry, 2019
A noninvasive electrochemical melanoma detection approach based on using adhesive tapes for collecting and fixing cells from a suspicious skin area and transferring the cells into a scanning electrochemical microscope (SECM) is presented. The adhesive layer collects the cells reproducibly and keeps them well adhered on the tape during experiments in an
Sorour Darvishi, Horst Pick, Tzu-En Lin, Yingdi Zhu, Xiaoyun Li, Ping-Chih Ho, Hubert H. Girault, Andreas Lesch   +7 more
openaire   +3 more sources