Journal ArticleDOI
Dumbbell-like Bifunctional Au−Fe3O4 Nanoparticles
TLDR
The dumbbell is formed through epitaxial growth of iron oxide on the Au seeds, and the growth can be affected by the polarity of the solvent, as the use of diphenyl ether results in flower-like Au-Fe(3)O(4) nanoparticles.Abstract:
Dumbbell-like Au−Fe3O4 nanoparticles are synthesized using decomposition of Fe(CO)5 on the surface of the Au nanoparticles followed by oxidation in 1-octadecene solvent. The size of the particles is tuned from 2 to 8 nm for Au and 4 nm to 20 nm for Fe3O4. The particles show the characteristic surface plasmon absorption of Au and the magnetic properties of Fe3O4 that are affected by the interactions between Au and Fe3O4. The dumbbell is formed through epitaxial growth of iron oxide on the Au seeds, and the growth can be affected by the polarity of the solvent, as the use of diphenyl ether results in flower-like Au−Fe3O4 nanoparticles.read more
Citations
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Journal ArticleDOI
Fe3O4–Ag heterostructure nanocrystals with tunable Ag domains and magnetic properties
TL;DR: In this article, the reaction mechanism based on the attraction between Ag precursor and Fe3O4 particles as well as the migration of adsorbed Ag species towards the initially deposited Ag domain was proposed to explain the heterogeneous nucleation of Ag on Fe 3O4 and the tuning of Ag crystal numbers.
Journal ArticleDOI
Recent advances in utility of artificial intelligence towards multiscale colloidal based materials design
TL;DR: A review of supervised and unsupervised strategies for colloidal material design can be found in this paper , where a collection of computer approaches ranging from quantum chemistry to molecular dynamics and continuum modeling are discussed.
Journal ArticleDOI
Evolution of magnetism by rolling up hexagonal boron nitride nanosheets tailored with superparamagnetic nanoparticles
TL;DR: The tailoring of a magnetic nanocomposite through hybridization with magnetic nanomaterials using hexagonal boron nitride (h-BN) templates as an effective way to evolve magnetism for the first time is demonstrated.
Book ChapterDOI
Synthetic Strategies to Size and Shape Controlled Nanocrystals and Nanocrystal Heterostructures
P. Davide Cozzoli,Liberato Manna +1 more
TL;DR: This chapter will review the strategies that have been so far developed for the synthesis of colloidal nanostructures, ranging from mono- material NCs with tailored dimensions and morphology to multi-material NC heterostructURES with a topologically controlled composition.
Journal ArticleDOI
Facile synthesis of core-shell nanocomposites Au catalysts towards abatement of environmental pollutant Rhodamine B.
A. Ramesh,A. Ramesh,P. Tamizhdurai,S. Gopinath,K. Sureshkumar,Eagambaram Murugan,Kannan Shanthi +6 more
TL;DR: Fe3O4-PVBC-g-PAC-Au NPs has an outstanding activity and recyclability without applying any external magnetic field and this new approach provides an exciting potential way in the preparation of recyclable metal nano-catalysts with high catalytic activity.
References
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TL;DR: A review of gold nanoparticles can be found in this article, where the most stable metal nanoparticles, called gold colloids (AuNPs), have been used for catalysis and biology applications.
Journal ArticleDOI
Monodisperse MFe2O4 (M = Fe, Co, Mn) Nanoparticles
Shouheng Sun,Hao Zeng,David B. Robinson,Simone Raoux,Philip M. Rice,Shan X. Wang,Guanxiong Li +6 more
TL;DR: As-synthesized iron oxide nanoparticles have a cubic spinel structure as characterized by HRTEM, SAED, and XRD and can be transformed into hydrophilic ones by adding bipolar surfactants, and aqueous nanoparticle dispersion is readily made.
Journal ArticleDOI
Nanoparticles with Raman Spectroscopic Fingerprints for DNA and RNA Detection
TL;DR: Six dissimilar DNA targets with six Raman-labeled nanoparticle probes were distinguished, as well as two RNA targets with single nucleotide polymorphisms, and the current unoptimized detection limit of this method is 20 femtomolar.
Journal ArticleDOI
Novel Gold Catalysts for the Oxidation of Carbon Monoxide at a Temperature far Below 0 °C
TL;DR: In this article, a variety of gold catalysts are used to catalyze the oxidation of carbon monoxide at temperatures as low as −70 °C and are stable in a moistened gas atmosphere.
Journal ArticleDOI
Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic Accessibility
TL;DR: The synthesis of epitaxially grown, wurtzite CdSe/CdS core/shell nanocrystals is reported in this paper, where shells of up to three monolayers in thickness were grown on cores ranging in diameter from 23 to 39.