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DNA-sensing with nano-textured diamond electrodes

DNA Detektion mit nano-texturierten Diamantelektroden
: Yang, N.; Uetsuka, H.; Nebel, C.E.


Diamond and Related Materials 18 (2009), Nr.2-3, S.592-595
ISSN: 0925-9635
International Conference on New Diamond and Nano Carbons (NDNC) <2, 2008, Taipei>
Zeitschriftenaufsatz, Konferenzbeitrag
Fraunhofer IAF ()
diamond property and application; vertically aligned diamond nanowire; bio-functionalization; biosensor; scanning probe microscopy; SPM; DNA detector; DNA Detektor; bioelectrochemistry; Bioelektrochemie; nanotextured electrodes; nanostrukturierte Elektroden; diamond nano wire; Diamant Nanodraht

Texturing of a smooth diamond surface by use of nano-diamond particles as a hard mask and by use of reactive ion etching for 10 s results in the fabrication of vertically aligned diamond nano-wires with 3-10 nm length and a typically 11 nm spacing in between. The surface structure, electronic properties, and electrochemicall functionalization of diamond nano-wires were characterized by atomic force (AFM) and electrochemical techniques. The data showed that tip modified diamond nano-wires are promising for the detection of DNA hybridization.