Results 261 to 270 of about 160,247 (300)

The Electrochemical Characterization of Single Core–Shell Nanoparticles

Angewandte Chemie International Edition, 2015
AbstractWe report the direct solution‐phase characterization of individual gold‐core silver‐shell nanoparticles through an electrochemical means, with selectivity achieved between the core and shell components based on their different redox activities. The electrochemically determined core–shell sizes are in excellent agreement with electron microscopy‐
Lucy R. Holt, Blake J. Plowman, Neil P. Young, Kristina Tschulik, Richard G. Compton   +4 more
openaire   +2 more sources

Porosity of core–shell nanoparticles

J. Mater. Chem., 2004
The porosity of titania and zirconia covered Ag and Au nanoparticles has been investigated using the metal core reactivity as a probe. The presence of pores was confirmed by a newly discovered reaction between halocarbons and core–shell nanoparticles, in which the core gets converted into ions, which are leached out through the shell.
V. Suryanarayanan, A. Sreekumaran Nair, Renjis T. Tom, T. Pradeep   +3 more
openaire   +1 more source

Freeze-Drying of Composite Core-Shell Nanoparticles

Drug Development and Industrial Pharmacy, 2006
The effects of four sugars (glucose, saccharose, maltose, trehalose) and one surfactant (Poloxamer 188), on the freeze-drying of poly(isobutylcyanoacrylate) (PIBCA), poly(epsilon-caprolactone)-poly(ethylene glycol) (PCL-PEG), and novel core (mainly PIBCA)-shell (principally PEG) composite nanoparticles (CNP) obtained by co-precipitation were ...
A-M, Layre, P, Couvreur, J, Richard, D, Requier, N, Eddine Ghermani, R, Gref   +5 more
openaire   +2 more sources

Biomedical Applications Based on Core-Shell Nanoparticles

2005 IEEE Engineering in Medicine and Biology 27th Annual Conference, 2005
Here some progresses of core-shell nanoparticles (NPs) for biomedical applications have been reported. A new synthesis mechanism for preparation of core-shell NPs by using water-in-oil (W/O) microemulsion technique has been investigated. And the applications of the core-shell NPs on cell recognition, oligonucleotide detection, single bacterial ...
Kemin, Wang, Weihong, Tan, Xiaoxiao, He
openaire   +2 more sources

FRET Enhancement in Multilayer Core−Shell Nanoparticles

Nano Letters, 2009
This study describes the preparation and characterization of novel multilayer core-shell nanoparticles displaying metal-enhanced Forster resonant energy transfer. The increase in range and efficiency of Forster resonant energy transfer in these fluorescent nanocomposites and their vastly improved luminosity make them promising optical probes for a ...
Mathieu, Lessard-Viger, Maxime, Rioux, Luc, Rainville, Denis, Boudreau   +3 more
openaire   +2 more sources

Noncovalent Imprinting in the Shell of Core−Shell Nanoparticles

Langmuir, 2004
Propranolol was imprinted using noncovalent interactions in the shell of core-shell nanoparticles prepared by aqueous emulsion polymerization in the presence and absence of toluene. The imprinted particles were characterized, and their capacity to rebind propranolol from both organic and aqueous media was analyzed.
Natalia, Pérez-Moral, Andrew G, Mayes
openaire   +2 more sources

Multifunctional Nanoparticle@MOF Core–Shell Nanostructures

Advanced Materials, 2013
Controllable integration of inorganic nanoparticles (NPs) and metal–organic frameworks (MOFs) is leading to the creation of many new multifunctional materials. In this Research News, an emerging type of core–shell nanostructure, in which the inorganic NP cores are encapsulated by the MOF shells, is briefly introduced.
Liu, Yaling, Tang, Zhiyong
openaire   +3 more sources

Core–Shell Nanoparticle-Enhanced Raman Spectroscopy

Chemical Reviews, 2017
Core-shell nanoparticles are at the leading edge of the hot research topics and offer a wide range of applications in optics, biomedicine, environmental science, materials, catalysis, energy, and so forth, due to their excellent properties such as versatility, tunability, and stability.
Jian-Feng Li, Yue-Jiao Zhang, Song-Yuan Ding, Rajapandiyan Panneerselvam, Zhong-Qun Tian   +4 more
openaire   +2 more sources

Synthesis of fluorescent core–shell hydroxyapatite nanoparticles

J. Mater. Chem., 2011
Lanthanide-doped fluorescent hydroxyapatite/silica core–shell nanorods, 50–100 nm in length and 30 nm in width, were prepared by precipitation of calcium phosphate in the presence of Eu3+ and Y3+ ions at 60 °C, followed by hydrothermally enhanced crystallization, stabilization with poly(ethyleneimine), and reaction with tetraethyl orthosilicate.
Neumeier, M, Hails, L.A, Davis, S.A, Mann, S, Epple, M   +4 more
openaire   +2 more sources

Core-Shell Nanoparticles for Pulmonary Drug Delivery

Pharmaceutical Nanotechnology
Nanoscale drug delivery systems have provoked interest for application in various therapies on account of their ability to elevate the intracellular concentration of drugs inside target cells, which leads to an increase in efficacy, a decrease in dose, and dose-associated adverse effects.
Mukesh P. Ratnaparkhi, Shailendra S. Salvankar, Avinash R. Tekade, Gajanan M. Kulkarni   +3 more
openaire   +2 more sources