نتایج جستجو برای: nanoparticle synthesis

تعداد نتایج: 436994  

2003
K. Landfester

© Springer-Verlag Berlin Heidelberg 2003 Miniemulsions are specially formulated heterophase systems consisting of stable nanodroplets in a continuous phase. The narrowly size distributed nanodroplets of 50 to 500 nm can be prepared by shearing a system containing oil, water, a surfactant, and an osmotic pressure agent which is insoluble in the continuous phase. Since each of the nanodroplets ca...

Journal: :research in pharmaceutical sciences 0

silver nanoparticles (nps) have been the subjects of researchers because of their unique properties ( e.g., size and shape depending optical, antimicrobial, and electrical properties). a variety of preparation techniques have been reported for the synthesis of silver nps; notable examples include, laser ablation, gamma irradiation, electron irradiation, chemical reduction, photochemical methods...

2004
Kikuo Okuyama Wuled Lenggoro Toru Iwaki

Nanoparticles such as metals, semiconductors and metal oxides are of great interest for a wide variety of applications in the field of information, energy, environmental and medical technologies due to their unique or improved properties determined primarily by size, composition and structure along with their selforganized film structures. In this presentation, Japan’s national project on nanop...

Journal: :Nano letters 2017
Paul Maguire David Rutherford Manuel Macias-Montero Charles Mahony Colin Kelsey Mark Tweedie Fátima Pérez-Martin Harold McQuaid Declan Diver Davide Mariotti

We demonstrate an entirely new method of nanoparticle chemical synthesis based on liquid droplet irradiation with ultralow (<0.1 eV) energy electrons. While nanoparticle formation via high energy radiolysis or transmission electron microscopy-based electron bombardment is well-understood, we have developed a source of electrons with energies close to thermal which leads to a number of important...

The use of less hazardous chemicals or natural material in place of toxic chemical for the formation of metal nanoparticle is known as green synthesis. The present paper deals with greener approach for the synthesis of silver (Ag) nanoparticles. The Saraca asoca plant leaves extract solution was used for the silver nanoparticles. Confirmation of Ag nanoparticles has been done using var...

Journal: :Plasmonics 2007
Young Sun Nolan C Harris Ching-Hwa Kiang

We review recent work on DNA-linked gold nanoparticle assemblies. The synthesis, properties, and phase behavior of such DNA-gold nanoparticle assemblies are described. These nanoparticle assemblies have strong optical extinction in the ultraviolet and visible light regions; hence, the technique is used to study the kinetics and phase transitions of DNA-gold nanoparticle assemblies. The melting ...

The use of less hazardous chemicals or natural material in place of toxic chemical for the formation of metal nanoparticle is known as green synthesis. The present paper deals with greener approach for the synthesis of silver (Ag) nanoparticles. The Saraca asoca plant leaves extract solution was used for the silver nanoparticles. Confirmation of Ag nanoparticles has been done using var...

Journal: :New Journal of Chemistry 2023

Recently, nanoparticle (NP) synthesis has evolved into a green nanotechnology field, requiring more methods for the eco-synthesis of nanoparticles due to high costs other chemical–physical methods.

Journal: :Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2009
S Padalkar J Hulleman S M Kim T Tumkur J-C Rochet E Stach L Stanciu

In the present study, we have exploited the properties of a fibrillar protein for the template synthesis of zinc sulfide (ZnS) nanoparticle chains. The diameter of the ZnS nanoparticle chains was tuned in range of ~30 to ~165 nm by varying the process variables. The nanoparticle chains were characterized by field emission scanning electron microscopy, UV-Visible spectroscopy, transmission elect...

2015
JOHNSON MATTHEY Johnson Matthey

Faraday Discussions are unique international meetings that focus on miscellaneous areas of chemistry and have been held for over 100 years. The format of these meetings is distinctive because delegates submit their papers in advance and these are distributed to all the participants prior to the meeting. During the meeting, the presenting authors are given fi ve minutes to summarise the key poin...

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