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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Ultra-sensitive SERS detection, rapid selective adsorption and degradation of cationic dyes on multifunctional magnetic metal-organic framework-based composite
TL;DR: A new way to monitor the catalytic degradation process by SERS technique in the co-existence of catalyst and dye molecules in the reaction system is provided, which can effectively eliminate the absorption of the catalyst compared with the UV-vis technique, showing promising applications in in-situ and real-time pollution disposal monitoring.
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Facile method for large scale synthesis of magnetic inorganic–organic hybrid anisotropic Janus particles
TL;DR: Anisotropic Janus particles with strong magnetic iron oxide domain and polymer microsphere domain were prepared with large scale in one batch through a facile method via the solvothermal method and the sizes of the inorganic magnetite domains were well controlled via altering the ratio of P(MBA-co-MAA) microspheres to ferric chloride inorganic precursors.
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Broken band alignment in EuS-CdS nanoheterostructures
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Functionalized gold nanomaterials as biomimetic nanozymes and biosensing actuators
Liu Liu,Hui Jiang,Xuemei Wang +2 more
TL;DR: In this article, the authors reviewed the recent advances of functionalized Au NMs in the past decade according to the internal inherent properties and external stimuli response of AuNMs, which may further deepen the understanding of the mechanism of functionalised AU NMs.
Journal ArticleDOI
Characterization and Optimization of the Fluorescence of Nanoscale Iron Oxide/Quantum Dot Complexes
Minjung Cho,Minjung Cho,Elizabeth Q. Contreras,Seung Soo Lee,Christopher J. Jones,Wonhee Jang,Wonhee Jang,Vicki L. Colvin +7 more
TL;DR: In this article, nanoscale iron oxide/quantum dot (QD) complexes were formed in an efficient and versatile reaction that relied on the nucleation of chalcogenides on preformed iron oxide nanocrystals.
References
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Journal ArticleDOI
Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology.
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.