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Magnetically Driven Single DNA Nanomotor
Author(s) -
Bamrungsap Suwussa,
Phillips Joseph A.,
Xiong Xiangling,
Kim Youngmi,
Wang Hui,
Liu Haipeng,
Hebard Arthur,
Tan Weihong
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201001559
Subject(s) - dna , dna–dna hybridization , magnetic field , biophysics , materials science , nanotechnology , chemistry , biochemistry , biology , physics , quantum mechanics
Magnetically driven DNA nanomotors: one end of a set of DNA hairpins is immobilized on a glass surface and the other is conjugated to magnetic particles. The DNA hairpin molecules are opened by an external magnetic field gradient, and subsequently closed through DNA hybridization after the removal of the magnetic field. The separation of the ends of the DNA hairpin during opening is interpreted as the power stroke of the nanomotor and the hybridization of the hairpin as the recovery stroke.