Genomagnetic Electrochemical Biosensors
Identifieur interne : 003155 ( Main/Exploration ); précédent : 003154; suivant : 003156Genomagnetic Electrochemical Biosensors
Auteurs : Joseph Wang [États-Unis] ; Arzum Erdem [Turquie]Source :
- NATO Science Series II: Mathematics, Physics and Chemistry [ 1568-2609 ]
Abstract
Abstract: The use of nucleic acid technologies has significantly improved preparation and diagnostic procedures in life sciences. Nucleic acid layers combined with electrochemical or optical transducers produce a new kind of affinity biosensors as DNA Biosensor for small molecular weight molecules. Electrochemical DNA biosensors are attractive devices for converting the hybridization event into an analytical signal for obtaining sequence-specific information in connection with clinical, environmental or forensic investigations. DNA hybridization biosensors, based on electrochemical transduction of hybridization, couple the high specificity of hybridization reactions with the excellent sensitivity and portability of electrochemical transducers. The main goal in all researches is to design DNA biosensors for preparing a basis for the future DNA microarray system. DNA chip has now become a powerful tool in biological research, however the real clinic assay is still under development. Recently, there has been a great interest to the magnetic beads and/or nanoparticles labelled with metals such as gold, cadmium, silver, etc. for designing of novel electrochemical DNA biosensor approaches resulting in efficient separation. The attractive features of this technology include simple approach, rapid results, multi-analyte detection, low-cost per measurument, stable, and non-hazardous reagents, and reduced waste handling. Some of these new approaches and applications of the electrochemical DNA biosensors based on magnetic beads and its combining with nanoparticles labelled with metals are described and discussed.
Url:
DOI: 10.1007/1-4020-2173-9_36
Affiliations:
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Nucleic acid layers combined with electrochemical or optical transducers produce a new kind of affinity biosensors as DNA Biosensor for small molecular weight molecules. Electrochemical DNA biosensors are attractive devices for converting the hybridization event into an analytical signal for obtaining sequence-specific information in connection with clinical, environmental or forensic investigations. DNA hybridization biosensors, based on electrochemical transduction of hybridization, couple the high specificity of hybridization reactions with the excellent sensitivity and portability of electrochemical transducers. The main goal in all researches is to design DNA biosensors for preparing a basis for the future DNA microarray system. DNA chip has now become a powerful tool in biological research, however the real clinic assay is still under development. Recently, there has been a great interest to the magnetic beads and/or nanoparticles labelled with metals such as gold, cadmium, silver, etc. for designing of novel electrochemical DNA biosensor approaches resulting in efficient separation. The attractive features of this technology include simple approach, rapid results, multi-analyte detection, low-cost per measurument, stable, and non-hazardous reagents, and reduced waste handling. Some of these new approaches and applications of the electrochemical DNA biosensors based on magnetic beads and its combining with nanoparticles labelled with metals are described and discussed.</div></front></TEI><affiliations><list><country><li>Turquie</li><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Wang, Joseph" sort="Wang, Joseph" uniqKey="Wang J" first="Joseph" last="Wang">Joseph Wang</name></noRegion><name sortKey="Wang, Joseph" sort="Wang, Joseph" uniqKey="Wang J" first="Joseph" last="Wang">Joseph Wang</name></country><country name="Turquie"><noRegion><name sortKey="Erdem, Arzum" sort="Erdem, Arzum" uniqKey="Erdem A" first="Arzum" last="Erdem">Arzum Erdem</name></noRegion><name sortKey="Erdem, Arzum" sort="Erdem, Arzum" uniqKey="Erdem A" first="Arzum" last="Erdem">Arzum Erdem</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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