Stable single-crystalline body centered cubic Fe nanoparticles.
basic_science · Level V
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- Record sourced from PubMed, PMID 21417366.
- Also identified by DOI 10.1021/nl200110t.
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Abstract
We report a facile synthesis of body centered cubic (bcc) Fe nanoparticles (NPs) via the thermal decomposition of iron pentacarbonyl, Fe(CO)(5), in the presence of hexadecylammonium chloride. These bcc-Fe NPs exhibit a drastically increased stability and magnetic moment (M(s) = 164 A·m(2)·kg(-1)(Fe)) even in physiological solutions, and have much enhanced magnetic imaging contrast (r(2) = 220 s(-1)·mM(-1)) and heating (SAR = 140 W·g(-1)(Fe)) effects. They may serve as robust probes for imaging and therapeutic applications.
Medical subject headings
- Crystallization
- Iron
- Nanostructures