Results 61 to 70 of about 243,433 (224)

Metal-Based Nanoparticles as Antimicrobial Agents: An Overview

open access: yesNanomaterials, 2020
Metal-based nanoparticles have been extensively investigated for a set of biomedical applications. According to the World Health Organization, in addition to their reduced size and selectivity for bacteria, metal-based nanoparticles have also proved to ...
Elena Sánchez-López   +14 more
doaj   +1 more source

Azadirachta indica leaves mediated green synthesis of metal oxide nanoparticles: A review

open access: yesTalanta Open, 2022
Various attempts have been made for green synthesis of metal oxide nanoparticles; revealing the significance of plant extracts in reducing metal sources to nanoparticles and applications in various scientific domains.
Shriniwas P. Patil   +2 more
doaj  

Tumor microenvironment responsive metal nanoparticles in cancer immunotherapy

open access: yesFrontiers in Immunology, 2023
Malignant tumors have a unique tumor microenvironment (TME), which includes mild acidity, hypoxia, overexpressed reactive oxygen species (ROS), and high glutathione (GSH) levels, among others. Recently, TME regulation approaches have attracted widespread
Rou Yang   +6 more
doaj   +1 more source

Metal Oxide Nanoparticles and Their Applications: A Report [PDF]

open access: yesarXiv, 2021
Herein, we report a brief introduction of metal oxide nanoparticles and their diverse applications in different scientific and medical fields. This report will be updated frequently to give a complete review in similar fields of nanotechnology. In the present version of the report, an introduction to nanotechnology and nanomaterials with some synthesis
arxiv  

Composites of Cellulose and Metal Nanoparticles [PDF]

open access: yes, 2012
Research on inorganic/organic nanocomposite materials is a fast growing interdisciplinary area in materials science and engineering. In particular, extensive work has been undertaken in the development of sustainable and environmentally friendly resources and methods.
Ricardo J.B. Pinto   +3 more
openaire   +3 more sources

Raman Spectroscopy of Single Nanoparticles in a Double-Nanohole Optical Tweezer System [PDF]

open access: yes, 2015
A double nanohole in a metal film was used to trap nanoparticles (20 nm diameter) and simultaneously record their Raman spectrum using the trapping laser as the excitation source. This allowed for the identification of characteristic Stokes lines for titania and polystyrene nanoparticles, showing the capability for material identification of ...
arxiv   +1 more source

Preparation of Metallic Nanoparticles [PDF]

open access: yesManufacturing Technology, 2013
Nanomaterials are substances with high application potential. It this article, the preparation technique are reviewed with aiming on selective leaching method. This method is based on preparation of conviniet binary alloy in form of supersaturated solid solution and consequent matrix dissolution. In the same time, the minor element forms nanoparticles.
Alena Michalcová   +4 more
openaire   +2 more sources

Interaction of single molecules with metallic nanoparticles [PDF]

open access: yesarXiv, 2008
We theoretically investigate the interaction between a single molecule and a metallic nanoparticle. We develop a general quantum mechanical description for the calculation of the enhancement of radiative and non-radiative decay channels for a molecule situated in the nearfield regime of the metallic nanoparticle.
arxiv  

Fluorescence from metallic silver and iron nanoparticles prepared by exploding wire technique [PDF]

open access: yesarXiv, 2006
The observation of intense visible fluorescence from silver and iron nanoparticles in different solution phases and surface capping is reported here. Metallic silver and iron nanoparticles were obtained by exploding pure silver and iron wires in pure water.
arxiv  

Antimicrobial Polymers with Metal Nanoparticles [PDF]

open access: yesInternational Journal of Molecular Sciences, 2015
Metals, such as copper and silver, can be extremely toxic to bacteria at exceptionally low concentrations. Because of this biocidal activity, metals have been widely used as antimicrobial agents in a multitude of applications related with agriculture, healthcare, and the industry in general.
openaire   +4 more sources

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