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Vertically aligned diamond nanowires: Fabrication, characterization, and application for DNA sensing

: Yang, N.; Uetsuka, H.; Williams, O.A.; Osawa, E.; Tokuda, N.; Nebel, Christoph E.


Nesladek, M.:
Papers presented at the Hasselt Diamond Workshop 2009 - SBDD XIV : Cultuurcentrum Hasselt, Hasselt, Belgium , 2 - 4 March 2009
Weinheim: Wiley-VCH, 2009 (Physica status solidi. A, Applications and materials science 206.2009, Nr.9)
ISSN: 0031-8965
International Workshop on Surface and Bulk Defects in CVD Diamond Films <14, 2009, Hasselt>
Konferenzbeitrag, Zeitschriftenaufsatz
Fraunhofer IAF ()

In this review, we introduce a novel procedure to fabricate vertically aligned diamond nanowires with controlled geometrical properties like length and distance between wires by use of nanodiamond particles as a hard mask and by use of reactive ion etching. We summarize the characterizations of nanowires by atomic force microscopy and scanning tunneling microscopy as well as electrochemical techniques. In the last section, we show biofunctionalization of nucleic acid molecules on diamond nanowires using electrochemically bond nitrophenyl molecules as linker for deoxyribonucleic acid (DNA) sensing. The tip biofunctionalization and performance of as-prepared DNA sensors are discussed in detail.