Surface modification of ferromagnetic L1o FePt nanoparticles using biotin avidin as biomolecular recognition probes

Anastasia W. Indrianingsih, Masayuki Suda, Yushi Heta, Koji Suzuki, Yasuaki Einaga

Research output: Contribution to journalArticle


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.

Original languageEnglish
Pages (from-to)873-877
Number of pages5
JournalBulletin of the Chemical Society of Japan
Issue number8
Publication statusPublished - 2011 Aug 22


ASJC Scopus subject areas

  • Chemistry(all)

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