نتایج جستجو برای: nanoparticle applications

تعداد نتایج: 637000  

Journal: :Small 2013
Heng Liu Hui Yang Xian Hao Haijiao Xu Yi Lv Debao Xiao Hongda Wang Zhiyuan Tian

A class of core-shell nanoparticles possessing a layer of biocompatible shell and hydrophobic core with embedded oxygen-sensitive platinum-porphyrin (PtTFPP) dyes is developed via a radical-initiated microemulsion co-polymerization strategy. The influences of host matrices and the PtTFPP incorporation manner on the photophysical properties and the oxygen-sensing performance of the nanoparticles...

2016
Adrien Lalisse Gilles Tessier Jérome Plain Guillaume Baffou

Metal nitrides have been proposed to replace noble metals in plasmonics for some specific applications. In particular, while titanium nitride (TiN) and zirconium nitride (ZrN) possess localized plasmon resonances very similar to gold in magnitude and wavelength, they benefit from a much higher sustainability to temperature. For this reason, they are foreseen as ideal candidates for applications...

Journal: :Frontiers in sensors 2022

Nanoparticle-doped optical fibers, investigated first as fiber lasers and amplifiers, have gained tremendous interest over the past few years sensors. One of main interests such fibers relies on ability to develop a distributed sensor, allowing real-time measurement with multiplexed architecture. To go beyond actual proof concept, we discuss in this perspective paper three challenges tackle: un...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2017
Nazar Orishchin Cameron C Crane Matthew Brownell Tengjiao Wang Samuel Jenkins Min Zou Arun Nair Jingyi Chen

Polydopamine is a bioinspired, versatile material that can adhere to bulk and nanoscale surfaces made of disparate materials to improve their physical and chemical properties in many applications. The typical methods to coat polydopamine on the nanoparticle substrates usually take several hours to a day. This work successfully applies a dispersion method to form a controllable, uniform coating ...

2011
V. Sue Myers Michael G. Weir Emily V. Carino David F. Yancey Surojit Pande Richard M. Crooks

In this article we describe the synthesis, characterization, and applications of dendrimer-encapsulated nanoparticles (DENs). These materials are synthesized using a template approach in which metal ions are extracted into the interior of dendrimers and then subsequently reduced chemically to yield nearly size-monodisperse particles having diameters in the 1–2 nm range. Monometallic, bimetallic...

2012
Dave Maharaj Bharat Bhushan

Nano-object additives are used in tribological applications as well as in various applications in liquids requiring controlled manipulation and targeting. On the macroscale, nanoparticles in solids and liquids have been shown to reduce friction and wear. On the nanoscale, atomic force microscopy (AFM) studies have been performed in single- and multiple-nanoparticle contact, in dry environments,...

2014
Candace C. Fleischer Christine K. Payne

Nanoparticles used for biological and biomedical applications encounter a host of extracellular proteins. These proteins rapidly adsorb onto the nanoparticle surface, creating a protein corona. Poly(ethylene glycol) can reduce, but not eliminate, the nonspecific adsorption of proteins. As a result, the adsorbed proteins, rather than the nanoparticle itself, determine the cellular receptors used...

2006
Xiao-qin Li Daniel W. Elliott Wei-xian Zhang

Zero-valent iron nanoparticle technology is becoming an increasingly popular choice for treatment of hazardous and toxic wastes, and for remediation of contaminated sites. In the U.S. alone, more than 20 projects have been completed since 2001. More are planned or ongoing in North America, Europe, and Asia. The diminutive size of the iron nanoparticles helps to foster effective subsurface dispe...

2015
Praveen Thoniyot Mein Jin Tan Anis Abdul Karim David James Young Xian Jun Loh

New technologies rely on the development of new materials, and these may simply be the innovative combination of known components. The structural combination of a polymer hydrogel network with a nanoparticle (metals, non-metals, metal oxides, and polymeric moieties) holds the promise of providing superior functionality to the composite material with applications in diverse fields, including cat...

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