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Title: Magnetic nanotubes

Abstract

A magnetic nanotube includes bacterial magnetic nanocrystals contacted onto a nanotube which absorbs the nanocrystals. The nanocrystals are contacted on at least one surface of the nanotube. A method of fabricating a magnetic nanotube includes synthesizing the bacterial magnetic nanocrystals, which have an outer layer of proteins. A nanotube provided is capable of absorbing the nanocrystals and contacting the nanotube with the nanocrystals. The nanotube is preferably a peptide bolaamphiphile. A nanotube solution and a nanocrystal solution including a buffer and a concentration of nanocrystals are mixed. The concentration of nanocrystals is optimized, resulting in a nanocrystal to nanotube ratio for which bacterial magnetic nanocrystals are immobilized on at least one surface of the nanotubes. The ratio controls whether the nanocrystals bind only to the interior or to the exterior surfaces of the nanotubes. Uses include cell manipulation and separation, biological assay, enzyme recovery, and biosensors.

Inventors:
;
Issue Date:
Research Org.:
City Univ. of New York, NY (United States); Tokyo Univ. of Agriculture and Technology (Japan)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014905
Patent Number(s):
7834139
Application Number:
10/593,514
Assignee:
Research Foundation of the City University of New York (New York, NY); National University Corporation of Tokyo University of Agriculture and Technology (Tokyo, JP)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
FG02-01ER45935
Resource Type:
Patent
Resource Relation:
Patent File Date: 2005 Mar 14
Country of Publication:
United States
Language:
English

Citation Formats

Matsui, Hiroshi, and Matsunaga, Tadashi. Magnetic nanotubes. United States: N. p., 2010. Web.
Matsui, Hiroshi, & Matsunaga, Tadashi. Magnetic nanotubes. United States.
Matsui, Hiroshi, and Matsunaga, Tadashi. Tue . "Magnetic nanotubes". United States. https://www.osti.gov/servlets/purl/1014905.
@article{osti_1014905,
title = {Magnetic nanotubes},
author = {Matsui, Hiroshi and Matsunaga, Tadashi},
abstractNote = {A magnetic nanotube includes bacterial magnetic nanocrystals contacted onto a nanotube which absorbs the nanocrystals. The nanocrystals are contacted on at least one surface of the nanotube. A method of fabricating a magnetic nanotube includes synthesizing the bacterial magnetic nanocrystals, which have an outer layer of proteins. A nanotube provided is capable of absorbing the nanocrystals and contacting the nanotube with the nanocrystals. The nanotube is preferably a peptide bolaamphiphile. A nanotube solution and a nanocrystal solution including a buffer and a concentration of nanocrystals are mixed. The concentration of nanocrystals is optimized, resulting in a nanocrystal to nanotube ratio for which bacterial magnetic nanocrystals are immobilized on at least one surface of the nanotubes. The ratio controls whether the nanocrystals bind only to the interior or to the exterior surfaces of the nanotubes. Uses include cell manipulation and separation, biological assay, enzyme recovery, and biosensors.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {11}
}

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