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Sensors 2006, 6(8), 901-914; doi:10.3390/s6080901

Uses of Dendrimers for DNA Microarrays

* ,
Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
* Authors to whom correspondence should be addressed.
Received: 27 April 2006 / Accepted: 27 July 2006 / Published: 24 August 2006
(This article belongs to the Special Issue Supramolecular Sensors)
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Biosensors such as DNA microarrays and microchips are gaining an increasingimportance in medicinal, forensic, and environmental analyses. Such devices are based onthe detection of supramolecular interactions called hybridizations that occur betweencomplementary oligonucleotides, one linked to a solid surface (the probe), and the other oneto be analyzed (the target). This paper focuses on the improvements that hyperbranched andperfectly defined nanomolecules called dendrimers can provide to this methodology. Twomain uses of dendrimers for such purpose have been described up to now; either thedendrimer is used as linker between the solid surface and the probe oligonucleotide, or thedendrimer is used as a multilabeled entity linked to the target oligonucleotide. In the firstcase the dendrimer generally induces a higher loading of probes and an easier hybridization,due to moving away the solid phase. In the second case the high number of localized labels(generally fluorescent) induces an increased sensitivity, allowing the detection of smallquantities of biological entities.
Keywords: dendrimers; microarrays; fluorescence; DNA; dendrons dendrimers; microarrays; fluorescence; DNA; dendrons
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Caminade, A.-M.; Padié, C.; Laurent, R.; Maraval, A.; Majoral, J.-P. Uses of Dendrimers for DNA Microarrays. Sensors 2006, 6, 901-914.

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