نتایج جستجو برای: gold nano particle

تعداد نتایج: 301510  

Journal: :IEEE Photonics Journal 2021

The polarization states of scattered photons can be used to map or image the anisotropic features a nanostructure. However, scattering strength depends heavily on refractivity contrast in near field under measurement, which limits imaging sensitivity for viral particles have little with their nano-ambientes. In this paper, we show photon signal magnified by introducing more abrupt change at vir...

Journal: :Optics express 2007
Hung Ji Huang Chin-Ping Yu Hung Chun Chang Kuo Pin Chiu Hao Ming Chen Ru Shi Liu Din Ping Tsai

Polarization-contrast microscopy coupled with an atomic force microscope is utilized to attain far-field optical images of the multipolar surface plasmon resonance (SPR) modes of single gold nano-rod. Modulated standing modes resulted from the interference of longitudinal SPR modes and incident light are observed and studied. By counting the average distance of adjacent beats on this single gol...

2012
Clare Hoskins Yue Min Mariana Gueorguieva Craig McDougall Alexander Volovick Paul Prentice Zhigang Wang Andreas Melzer Alfred Cuschieri Lijun Wang

BACKGROUND Iron oxide nanoparticles (IONPs) have increasing applications in biomedicine, however fears over long term stability of polymer coated particles have arisen. Gold coating IONPs results in particles of increased stability and robustness. The unique properties of both the iron oxide (magnetic) and gold (surface plasmon resonance) result in a multimodal platform for use as MRI contrast ...

2017
Lu An Yuanyuan Wang Qiwei Tian Shiping Yang

Over the past few decades, the synthetic development of ultra-small nanoparticles has become an important strategy in nano-medicine, where smaller-sized nanoparticles are known to be more easily excreted from the body, greatly reducing the risk caused by introducing nano-theranostic agents. Gold nanorods are one of the most important nano-theranostic agents because of their special optical and ...

Journal: :مجله پزشکی مولکولی 0
abbas ebrahimi- kalan department of neurosciences, faculty of advanced medical sciences, tabriz university of medical sciences, tabriz, iran shahram ahmadian clinical laboratory, imam reza hospital, tabriz university of medical sciences, tabriz, iran hamid tayefi-nasrabadi department of anatomical, faculty of medicine, tabriz university of medical sciences, tabriz, mohammad pourhassan-moghaddam department of medical biotechnology, faculty of advanced medical sciences, tabriz university of medical sciences, tabriz, iran c ian wark research institute, mawson lakes campus, university of south australia, mawson lakes,

introduction: telomeric repeat amplification protocol assay (trap assay) is a standard established technique to detect the activity (expression) of telomerase in the cancerous samples. it includes a time-consuming procedure that has significant drawbacks such as high cost, complicacy, time-consuming procedure, equipment-dependent steps and false-positive signals caused by inclusion of pcr insid...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2016
hassan tavakoli rasoul sarraf mamoory ali reza zarei

in this study, copper chromite (cucr2o4) nanoparticles was prepared by inverse co-precipitation method. in this method, cupric nitrate trihydrate, (cu (no3)2.3h2o) and chromium nitrate nonahydrate, (cr (no3) 3.9h2o) with a mole ratio of 1:2 were used. characterization of cucr2o4 nanoparticles was performed by fourier transform infrared spectroscopy (ft-ir), raman spectroscopy, x-ray diffraction...

Journal: :avicenna journal of dental research 0
m shirinzad assistant professor, department of operative dentistry, dental faculty, hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) sh kasraei associate professor, dental research center, department of operative dentistry, dental faculty, hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) m azarsina assistant professor, department of operative dentistry, dental faculty , international branch of shahid beheshti univeسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

statement of the problem addition of metallic nano-particles to composite resins can change their water contact angle purpose the aim of this study was to evaluate the effect of addition of nano-particles of silver and zinc oxide to composite resins on their water contact angle materials and methods this in vitro study was performed on 60 composite resin samples. nano-silver and nano-zinc oxide...

2015
Haitao Han Dawei Pan Dongyan Liu Xueping Hu Mingyue Lin Fei Li

Citation: Han H, Pan D, Liu D, Hu X, Lin M and Li F (2015) Cathodic stripping voltammetric determination of chromium in coastal waters on cubic Nano-titanium carbide loaded gold nanoparticles modified electrode. Front. Mar. Sci. 2:75. doi: 10.3389/fmars.2015.00075 Cathodic stripping voltammetric determination of chromium in coastal waters on cubic Nano-titanium carbide loaded gold nanoparticles...

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