T
Takashi Nakagawa
Researcher at Osaka University
Publications - 201
Citations - 2953
Takashi Nakagawa is an academic researcher from Osaka University. The author has contributed to research in topics: Nanoparticle & Catalysis. The author has an hindex of 27, co-authored 192 publications receiving 2722 citations. Previous affiliations of Takashi Nakagawa include NEC & Tokyo Institute of Technology.
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Journal ArticleDOI
Suitability of commercial colloids for magnetic hyperthermia
Mathew Kallumadil,Mathew Kallumadil,Masaru Tada,Takashi Nakagawa,Masanori Abe,Paul Southern,Paul Southern,Quentin A. Pankhurst,Quentin A. Pankhurst +8 more
TL;DR: In this article, commercial nanoparticles supplied by Chemicell, Micromod and Bayer-Schering were characterised with regard to their nanocrystalline diameter, hydrodynamic diameter, total iron content and relative ferrous iron content.
Compositional mantle layering revealed by slab stagnation at ~1,000 km depth
TL;DR: In this article, the authors reconcile cosmochemical and geophysical constraints using the stagnation of some slab segments at ~1000-km depth as the key observation, and show that lower-mantle enrichment in intrinsically dense basaltic lithologies can render slabs neutrally buoyant in the uppermost lower mantle.
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Magnetic evaluation of nanostructure of gold–iron composite particles synthesized by a reverse micelle method
Takuya Kinoshita,Satoshi Seino,K Okitsu,Tadachika Nakayama,Takashi Nakagawa,Takao A. Yamamoto +5 more
TL;DR: In this article, an iron-gold nanocomposite powder was synthesized by sequential reduction of Fe2+ and Au3+ in reversed micelles and the magnetic moment size was evaluated by fitting the lognormal distribution function and the Langevin function to the magnetization data.
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Bimetallic nanoparticles of PtM (M = Au, Cu, Ni) supported on iron oxide: Radiolytic synthesis and CO oxidation catalysis
TL;DR: In this article, a radiolytic method employing a 4.8-MeV electron beam to reduce aqueous ions was used to synthesize composite nanoparticles of PtM supported on γ-Fe 2 O 3.
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Radiation induced synthesis of gold/iron-oxide composite nanoparticles using high-energy electron beam
Satoshi Seino,Takuya Kinoshita,Takashi Nakagawa,Takao Kojima,Ryoichi Taniguci,Shuichi Okuda,Takao A. Yamamoto +6 more
TL;DR: In this article, composite nanoparticles consisting of gold and iron oxide were synthesized in aqueous solution systems by using a high-energy electron beam and the electron irradiation induces radiation-chemical reaction to form metallic gold nanoparticles.