Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
Surface Modification of Ferromagnetic L1o FePt Nanoparticles Using Biotin–Avidin as Biomolecular Recognition Probes
Anastasia W. IndrianingsihMasayuki SudaYushi HetaKoji SuzukiYasuaki Einaga
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Volume 84 (2011) Issue 8 Pages 873-877

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Water-dispersible biotin-modified biofunctional ferromagnetic L1o FePt nanoparticles (NPs) have been synthesized by using a silica nanoreactor strategy. The coercivity field of the NPs was 16 kOe at room temperature, with a particle size of around 5.19 nm. Biotin-coated L1o FePt NPs were biocompatible in an aqueous environment and show site-specific interactions with avidin compounds that could potentially yield a new magnetic material for biological applications, such as for biomolecular recognition.

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© 2011 The Chemical Society of Japan
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