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
More filters
Journal ArticleDOI
Micro-optical coherence tomography tracking of magnetic gene transfection via Au–Fe3O4 dumbbell nanoparticles
Wei Shi,Wei Shi,Xinyu Liu,Chao Wei,Zhichuan J. Xu,Stanley Siong Wei Sim,Linbo Liu,Chenjie Xu +7 more
TL;DR: The engineering of Au-Fe3O4 NPs as gene carriers for magnetic gene transfection as well as contrast agents for micro-optical coherence tomography (μOCT) is reported.
Journal ArticleDOI
Preparation and Properties of PVDF/Fe3O4 Nanofibers with Magnetic and Electret Effects and their Application in Air Filtration
Liu Fan,Liu Fan,Li Mengying,Li Fang,Weng Kai,Qi Kun,Liu Chunhui,Qing-Qing Ni,Tao Xuejiao,Zhang Jing,Shao Weili,Jianxin He +11 more
Journal ArticleDOI
Heterogeneous silver-polyaniline nanocomposites with tunable morphology and controllable catalytic properties.
Conghui Yuan,Yiting Xu,Lina Zhong,Zhang Long,Cangjie Yang,Binjie Jiang,Yuanming Deng,Birong Zeng,Ning He,Weiang Luo,Lizong Dai +10 more
TL;DR: This paper introduces not only a simple hydrothermal route to silver-polyaniline (Ag-PANI) nanocomposites with controllable morphology, but also a type of catalyst possessing tunable and switchable catalytic capability.
Journal ArticleDOI
Au-Fe3O4 heterostructures for catalytic, analytical, and biomedical applications
TL;DR: In this article, the authors systematically introduce the preparation methods of Au-Fe3O4 heterostructures and their potential applications in the biomedical field, focusing on the unique synergistic effect caused by the combination of gold and iron oxide structures.
Journal ArticleDOI
A bifunctional sensor based on Au-Fe3O4 nanoparticle for the detection of Cd2+
TL;DR: In this paper, a bifunctional sensor based on Au-Fe 3 O 4 nanoparticles (NPs) modified by ethyl 1-(2-(3′,4′-dihydroxyphenyl)-2-oxoethyl)-1H-1,2,3-triazole-4-carboxylate (ETC) was developed.
References
More filters
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.