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Magnetic wires with DNA cores: A magnetic force microscopy study
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10.1063/1.1875748
/content/aip/journal/apl/86/9/10.1063/1.1875748
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/9/10.1063/1.1875748
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Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the magnetic nanowire fabrication methodology. Parts (b) and (c) show TMAFM height images of the nanoparticles with single stranded DNA core. Scan sizes are , and , respectively. The height scales are 8 and 6 nm, respectively.

Image of FIG. 2.
FIG. 2.

(a) The resonance frequency shift of the cantilever as a function of the lift height for wires coated by NPs with sizes of 1.5, 5.5, 6.5 and 8 nm. (b) Topography image of the DNA strand coated with magnetic nanoparticles. (c) MFM image (frequency) corresponding to (b) at a lift height of 25 nm. The scan size is , and the scales are 10 nm and 5 Hz in (b) and (c), respectively. Parts (d) and (e) show the height and MFM images, respectively, collected at a lift height of 8 nm. The scan size is and the scales are and in (d) and (e), respectively. Parts (f) and (g) are height and MFM images, respectively, acquired at a lift distance of 25 nm after the tip magnetization direction was reversed. The scan size is and the scales are 10 nm and 60 Hz in (f) and (g), respectively.

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/content/aip/journal/apl/86/9/10.1063/1.1875748
2005-02-25
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic wires with DNA cores: A magnetic force microscopy study
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/9/10.1063/1.1875748
10.1063/1.1875748
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