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Vertically aligned diamond nanowires: Fabrication, characterization, and application for DNA sensing
Author(s) -
Yang Nianjun,
Uetsuka Hiroshi,
Williams Oliver A.,
Osawa Eiji,
Tokuda Norio,
Nebel Christoph E.
Publication year - 2009
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200982222
Subject(s) - nanowire , nanodiamond , diamond , materials science , nanotechnology , fabrication , etching (microfabrication) , characterization (materials science) , scanning tunneling microscope , composite material , medicine , alternative medicine , pathology , layer (electronics)
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.