| Alignment of tellurium nanorods via a magnetization-alignment-demagnetization ("MAD") process assisted by an external magnetic field. | |
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MedLine Citation:
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PMID: 19485333 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Tellurium (Te) nanorods have been successfully aligned on a solid substrate via a magnetization-alignment-demagnetization ("MAD") process in the presence of an external magnetic field. Te nanorods carrying a poly(tert-butyl methacrylate) shell were first converted into magnetic nanocylinders by assembling magnetite nanoparticles on their surface via a hydrophobic interaction in THF. We demonstrate that, below a critical concentration of the nanoparticles, this assembly process is able to quantitatively tune the magnetite nanoparticles' density on the nanorods in terms of their stoichiometric ratio. Due to the polymer and surfactant on their surface, the formed magnetic nanocylinders are soluble in THF and aligned when dried on a solid substrate in the presence of an external magnetic field. The demagnetization of the prealigned nanocylinders was achieved via an acid-etching process, leaving Te nanorods in an aligned state. This MAD process can be extended as a general procedure for other nonmagnetic 1-D nanostructures. Additionally, the nonetched magnetic nanocylinders can be potentially applied in field of magnetorheology. |
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Authors:
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Jiayin Yuan; Haitao Gao; Felix Schacher; Youyong Xu; Reinhard Richter; Wolfgang Tremel; Axel H E Müller |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: ACS nano Volume: 3 ISSN: 1936-086X ISO Abbreviation: - Publication Date: 2009 Jun |
Date Detail:
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Created Date: 2009-06-23 Completed Date: 2009-09-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101313589 Medline TA: ACS Nano Country: United States |
Other Details:
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Languages: eng Pagination: 1441-50 Citation Subset: - |
Affiliation:
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Makromolekulare Chemie II, Universitat Bayreuth, Bayreuth, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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