نتایج جستجو برای: hybrid nanoparticles

تعداد نتایج: 294743  

2016
Pascal Scholder Martina Hafner Achim W. Hassel Ivo Nischang

We report on the preparation of new hybrid organic– inorganic multiporous monolithic capillary columns carrying gold nanoparticles of 5, 10, 50, and 100 nm size and their use as flow-through catalytic platforms for aqueous liquid-phase reduction reactions. We found that the flow-through performance of the reactors depends not only on the size of the gold nanoparticles but also on the interplay ...

Journal: :Nano letters 2012
Yongtae Kim Bomy Lee Chung Mingming Ma Willem J M Mulder Zahi A Fayad Omid C Farokhzad Robert Langer

Lipid-polymer hybrid (LPH) nanoparticles can deliver a wide range of therapeutic compounds in a controlled manner. LPH nanoparticle syntheses using microfluidics improve the mixing process but are restricted by a low throughput. In this study, we present a pattern-tunable microvortex platform that allows mass production and size control of LPH nanoparticles with superior reproducibility and hom...

2014
N. Selvi S. Sankar K. Dinakaran

we report the fabrication of pure CeO2, ZnO and SiO2 deposited CeO2 hybrid core-shell nanoparticles by simple and cost effective co precipitation method. The as synthesized samples were characterized by various experimental techniques such as XRD (X-ray diffraction), FTIR (Fourier Transform Infrared Spectroscopy) and HRTEM (High Field Transmission Tunneling Microscopy) measurements. XRD results...

2008
Simon J. Henley Paul C. P. Watts Natacha Mureau S. Ravi P. Silva R. P. Silva

Hybrid nanomaterials consisting of multiwall carbon nanotubes (MWCNT) decorated with noble metal nanoparticles were produced by irradiating aqueous mixed solutions of the separate components with nanosecond lasers pulses at 248 nm. Specifically, the decoration with Au and Pd nanoparticles is discussed. No decoration of the MWCNT was observed by simple mixing with nanoparticle solutions. Hence, ...

Journal: :ACS nano 2015
Michaela Meyns Svenja Willing Hauke Lehmann Christian Klinke

Thin films prepared of semiconductor nanoparticles are promising for low-cost electronic applications such as transistors and solar cells. One hurdle for their breakthrough is their notoriously low conductivity. To address this, we precisely decorate CdSe nanoparticles with platinum domains of one to three nanometers in diameter by a facile and robust seeded growth method. We demonstrate the tr...

2014
Rodrigo D. Vinluan Jinbin Liu Chen Zhou Mengxiao Yu Shengyang Yang Amit Kumar Shasha Sun Andrew Dean Xiankai Sun Jie Zheng

Ultrasmall glutathione-coated luminescent gold nanoparticles (GS-AuNPs) are known for their high resistance to serum protein adsorption. Our studies show that these NPs can serve as surface ligands to significantly enhance the physiological stability and lower the serum protein adsorption of superparamagnetic iron oxide nanoparticles (SPIONs), in addition to rendering the NPs the luminescence p...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Marco Stemmler Fernando D Stefani Stefan Bernhardt Roland E Bauer Maximilian Kreiter Klaus Müllen Wolfgang Knoll

We present a simple one-pot, one-step method to obtain stable and nearly monodisperse gold nanoparticles in dipolar aprotic solvents. Novel thiomethyl-functionalized polyphenylene dendrimers are used to control the growth and stabilize the nanoparticles in suspension. The dendrimer functionalized gold nanoparticles have an average size of roughly 10 nm and are stable in suspension for several w...

Journal: :Journal of colloid and interface science 2002
Hao Zhang Bai Yang Ruibing Wang Gang Zhang Xueliang Hou Lixin Wu

A precursor film has been fabricated from TGA (thiolglycolic acid)-stabilized CdTe nanoparticles and NDR (nitro-containing diazoresin) using electrostatic interactions and the standard layer-by-layer assembly method; covalent bonds are formed under ultraviolet irradiation. XPS provided evidence for the presence of CdTe nanoparticles within the polymer ultrathin films. UV-visible spectroscopy an...

Journal: :Accounts of chemical research 2008
Young-Wook Jun Jung-Wook Seo Jinwoo Cheon

Magnetic nanoparticles, which exhibit a variety of unique magnetic phenomena that are drastically different from those of their bulk counterparts, are garnering significant interest since these properties can be advantageous for utilization in a variety of applications ranging from storage media for magnetic memory devices to probes and vectors in the biomedical sciences. In this Account, we di...

Journal: :Journal of the American Chemical Society 2011
Ying Lin Vikram K Daga Eric R Anderson Samuel P Gido James J Watkins

The addition of nanoparticles that selectively hydrogen bond with one of the segments of a block copolymer is shown to induce order in otherwise disordered systems. This enables the fabrication of well-ordered hybrid materials with spherical, cylindrical, or lamellar domains at particle loadings of more than 40%, as evidenced by TEM and SAXS. The approach described is simple and applicable to a...

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