Mohtashim H Shamsi and Kurt E Geckeler 2008 Nanotechnology 19 075604 doi:10.1088/0957-4484/19/7/075604
Mohtashim H Shamsi and Kurt E Geckeler1
Show affiliationsDNA-wrapped halloysite nanotubes were obtained by a mechanochemical reaction in the solid state. The characterization by scanning electron microscopy showed that the nanotubes were cut into shorter lengths and were completely covered with DNA. This resulted in a high aqueous solubility of the product with stability of the solution for about 6 weeks. The nanotubes were cut to different fractions with lengths of 200–400 nm (30–40%), 400–600 nm (10–20%) and 600–800 nm (5–10%) after ball milling. FTIR spectroscopic analysis shows that the DNA in the product remained intact. This straightforward technique for obtaining water-soluble halloysite nanotubes by a solid-state reaction has great potential for biomedical applications of nanotubes.
87.85.Qr Nanotechnologies-design
82.35.Pq Biopolymers, biopolymerization
Soft matter, liquids and polymers
Issue 7 (20 February 2008)
Received 10 October 2007, in final form 30 November 2007
Published 31 January 2008
Mohtashim H Shamsi and Kurt E Geckeler 2008 Nanotechnology 19 075604
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