Top Research Papers on Nanoparticles

This work conjugated lectins to superparamagnetic Fe3O4 nanoparticles and utilized them for isolation of dying cells from mixed populations and it was shown that influence of alternating magnetic field resulted in the death of cells with bound biofunctionalized nanoparticles.

Devising new synthetic routes to nanocrystals (NCs) underpins much of the research activity in this area. Mature synthetic schemes already exist for nanocrystalline noble metals as well as sulfides and selenides of Cd, Pb and Zn. New schemes have therefore focused on synthesising other semiconductors (SCs), in particular avoiding elements generating toxic ions such as Cd, Se and As and avoiding low-availability elements (e.g., In, Te and Ga). Other synthetic schemes have focused on simpler routes, generating tighter distribution of diameters (to aid self-assembly) and dispersing NCs in volatil...

The aim of this paper is to develop Nanomolecules and their types, source, treatment and toxicity.

: © 2017 American Physical Society. Ultrafast pump-probe measurements of plasmonic nanostructures probe the nonequilibrium behavior of excited carriers, which involves several competing effects obscured in typical empirical analyses. Here we present pump-probe measurements of plasmonic nanoparticles along with a complete theoretical description based on first-principles calculations of carrier dynamics and optical response, free of any fitting parameters. We account for detailed electronic-structure effects in the density of states, excited carrier distributions, electron-phonon coupling, and ...

: © 2017 American Physical Society. Ultrafast pump-probe measurements of plasmonic nanostructures probe the nonequilibrium behavior of excited carriers, which involves several competing effects obscured in typical empirical analyses. Here we present pump-probe measurements of plasmonic nanoparticles along with a complete theoretical description based on first-principles calculations of carrier dynamics and optical response, free of any fitting parameters. We account for detailed electronic-structure effects in the density of states, excited carrier distributions, electron-phonon coupling, and ...

This review focuses on classification, method of preparation, application, advantages of nanoparticles and health perspectives and toxicity of nanoparticles.

Nanotechnology is the science that deals with matter at the scale of 1 billionth of a meter (i.e., 10 − 9 m = 1 nm), and is also the study of manipulating matter at the atomic and molecular scale. A nanoparticle is the most fundamental component in the fabrication of a nanostructure, and is far smaller than the world of everyday objects that are described by Newton ’ s laws of motion, but bigger than an atom or a simple molecule that are governed by quantum mechanics. The United States instituted the National Nanotechnology Initiative ( NNI ) back in 2000, which was soon followed (2001) by a p...

There has been a considerable research on the basis of Novel drug delivery system, using particulate vesicle systems as such drug carriers for small and large molecules, which have been improving the therapeutic effect of drugs and minimize the side effects.

In the recent years, the potential use of polymeric nanoparticles as carriers for a wide range of drugs for therapeutic applications has been increased due to their versatility and widerange of properties.

Various polymers have been used in the formulation of nanoparticles for the drug delivery research to increase therapeutic benefit, while minimizing side effects and their applications in delivery of drug molecules and therapeutic genes are reviewed.

Various aspects of nanoparticle formulation, characterization, effect of their characteristics and their applications in delivery of drug molecules and therapeutic genes are reviewed.

INCORPORATED, Houston, TX (US) International Search Report and Written Opinion for related PCT Application No. PCT/US2013/077918, dated Apr. 22, 2014, pp. (*) Notice: Subject to any disclaimer, the term of this 1-19. patent is extended or adjusted under 35 Tormod Skauge et al., Nano-Sized Particles for EOR, SPE Inter U.S.C. 154(b) by 111 days. national, Copyright 2010, Society of Petroleum Engineers, SPE 129933, This paper was prepared for presentation at the 2010 SPE (21) Appl. No.: 14/659,919 try:ity, sy posium held in Tulsa, Oklahoma, USA, pr. 24-28, , pp. 1-1U.

A nanotherapy derived from this bioactive material shows superior efficacies in different mouse models of inflammation and oxidative stress injury and a material with broad‐spectrum ROS‐eliminating capability is reported.

Advantages and disadvantages of these methods will be presented so as to facilitate selection of an appropriate method according to a particular application.

The present invention relates to a method for producing a nanoparticle of a group IV element, preferably Si, Ge and Sn, as well as a method of manufacturing nanoparticles binary alloy and ternary alloys of these elements. The method of the present invention, in elevated allowed temperature, under an inert atmosphere, at atmospheric pressure, using a decomposition accelerator, one or more group IV metal precursors, degradation in solution phase it is included to. The reaction mixture was added to the surface bound agent to form an organic layer covering the nanoparticles to prevent agglomeratio...

This review's objective is to compare artificially created and naturally occurring nanoparticles (NPs) and nanostructured materials (NSMs) in order to pinpoint their unique nanoscale characteristics and pinpoint specific knowledge gaps regarding the evaluation of NPs and NSMs' environmental risk.

This work presents controllable plasma polymerization of nanoparticles. Con- trolled production of nanoparticles with variable characteristics is important for difierent application flelds, from technology to astrophysics. We present changes in material charac- teristics of nanoparticles due to variations of the gas mixtures, plasma characteristics and especially the role of temperature. The phenomena related to dusty plasmas have an immense number of facets { from plasma crystals to applications in astrophysics or technology. One of the special aspects of this fleld is certainly the plasma po...

This study will explore the socioeconomic and environment implications of nanoparticle use as well as significant contributions that nanoparticles have made two model medicine.

Nanoparticles with diameters from 1 - 100 nm are used in large quantities for very different applications. A precise determination of the important physical quantities (which are responsible for the application properties) such as diameter, particle size distribution, and surface is therefore very essential. The most common methods for the determination of these quantities are analytical ultracentrifugation (AUC) and dynamic light scattering (DLS). The paper demonstrates the techniques of getting a precise characterization of nanoparticles and suggests a new method for the correction of the se...

One of the possibilities how to improve properties of conventional polymers is their modification with suitable nanoparticles. In order to observe the desired properties of nanocomposites it is important to know basic parameters characterizing nanoparticles. They are size and shape of nanoparticles and the quality of nanoparticles dispersion in polymeric matrix. We have measured these parameters for various combinations of polymer matrixes and nanoparticles by Atomic Force Microscopy ICON Dimension, dynamic X-ray diffraction 90 Plus/BI-MAS and X-ray Disc Centrifuge XDC. The studied systems wer...