Results 201 to 210 of about 28,086 (247)
Some of the next articles are maybe not open access.
Electrokinetic techniques applied to electrochemical DNA biosensors
ELECTROPHORESIS, 2011AbstractElectrokinetic techniques are contact‐free methods currently used in many applications, where precise handling of biological entities, such as cells, bacteria or nucleic acids, is needed. These techniques are based on the effect of electric fields on molecules suspended in a fluid, and the corresponding induced motion, which can be tuned ...
Mònica, Mir +4 more
openaire +2 more sources
Charge Transfer through DNA: A Selective Electrochemical DNA Biosensor
Analytical Chemistry, 2006The charge-transfer properties of DNA duplexes are exploited to produce a fast, simple, sensitive, and selective DNA biosensor by exposing the DNA recognition interface to a sample containing target DNA and the redox-active intercalator, anthraquinonemonosulfonic acid (AQMS).
Wong, ELS, Gooding, JJ
openaire +3 more sources
Electrochemical DNA Biosensors for Cervical Cancers
2021Effective diagnosis and preventive approaches can be of great help in reducing the rate of cervical cancer incidence and death. The uses of advanced bio-sensing techniques are crucial in the early diagnosis of cancer, especially for cervical cancer patients that are usually identified at later stages.
Muthaiyan Lakshmanakumar +3 more
openaire +1 more source
Indicator-free electrochemical DNA hybridization biosensor
Analytica Chimica Acta, 1998A new electrochemical hybridization biosensor protocol without an external indicator is described. The biosensor format involves the immobilization of inosine-substituted (guanine-free) probe onto the carbon paste transducer, and a direct chronopotentiometric detection of the duplex formation by the appearance of the guanine oxidation peak of the ...
Wang, J. +5 more
openaire +2 more sources
Electrochemical DNA Hybridization Biosensors
Electroanalysis, 2002The many different approaches in which electrochemical methods are used to detect DNA hybridization, as the basis of a DNA biosensors, are reviewed. Transduction of the hybridization event can be divided into two broad classes, approaches where a redox active species is used as a label and those where changes in the DNA interface are monitored ...
openaire +1 more source
Electrochemical DNA biosensor for environmental monitoring
Analytica Chimica Acta, 2001Abstract A disposable electrochemical DNA biosensor for the determination of toxic aromatic amines has been developed. The device relies on the intercalative or electrostatic collection of aromatic amines onto an immobilized dsDNA or ssDNA layer (obtained from several sources), followed by a chronopotentiometric analysis.
Chiti, Giacomo +2 more
openaire +2 more sources
Portable Electrochemical DNA Biosensor Unit
2002Abstract : Report developed under SBIR Contract for topic A01-032 We have demonstrated the feasibility of the use of mediated electrochemical detection of unmodified nucleic acids in a flow-through format. This detection method is rapid and sensitive, and easily implemented in a portable unit because of simple instrumentation required for the ...
Natasha Popovich +3 more
openaire +1 more source
Electrochemical DNA Biosensors
2012Preface Terminology Related to Electrochemical DNA-Based Biosensors Jan Labuda Introduction Detection Features of DNA-Based Biosensors Detection of Specific DNA Interactions Conclusions Electrochemical Aptamer-Based Biosensors S. Centi, S. Tombelli, and M.
openaire +1 more source
Graphene Oxide Modified DNA Electrochemical Biosensors
Applied Mechanics and Materials, 2012One approach had been developed for the covalent modification of graphene sheets: amidation and esterification of graphene oxide (GO). Graphene oxide was synthesized by oxidizing graphite in strong acid and lots of oxygen-containing groups, such as hydroxyl and carboxyl processed in the carbon layers, made GO strongly hydrophilic activity as well as ...
Mei Ma +7 more
openaire +1 more source
Electrochemical Biosensors for Monitoring of Drug-DNA Interactions
Current Topics in Medicinal Chemistry, 2023Abstract: The binding of the therapeutic agents to the nucleic acids is one of the paramount issues in the drug development area that is studied by various techniques. Electrochemical studies have a big portion in this area due to the fact that they allow designing of novel monitoring systems that have superior properties such as being feasible and ...
openaire +2 more sources