نتایج جستجو برای: gold nano particle

تعداد نتایج: 301510  

Journal: :Physical chemistry chemical physics : PCCP 2016
Xiaofang Zhang Wenjing Lin Liyang Wen Na Yao Shuyu Nie Lijuan Zhang

Unimolecular polymeric micelles have several features, such as thermodynamic stability, small particle size, biocompatibility, and the ability to internalize hydrophobic molecules. These micelles have recently attracted significant attention in various applications, such as nano-reactors, catalysis, and drug delivery. However, few attempts have explored the formation mechanisms and conditions o...

2011
Fei Zhao Guo-an Cheng Rui-ting Zheng Dan-dan Zhao Shao-long Wu Jian-hua Deng

Au-Si nano-particle-decorated silicon nanowire arrays have been fabricated by Au film deposition on silicon nanowire array substrates and then post-thermal annealing under hydrogen atmosphere. Field emission measurements illustrated that the turn-on fields of the non-annealed Au-coated SiNWs were 6.02 to 7.51 V/μm, higher than that of the as-grown silicon nanowires, which is about 5.01 V/μm. Me...

Journal: :تحقیقات مهندسی کشاورزی 0
سعید مینایی دانشیار گروه مکانیک ماشین های کشاورزی دانشگاه تربیت مدرس میثم ستاری نجف آبادی دانشجوی سابق کارشناسی ارشد گروه مکانیک ماشین های کشاورزی دانشگاه تربیت مدرس محمدحسین عزیزی دانشیار گروه علوم و صنایع غذایی دانشگاه تربیت مدرس حامد افشاری استادیار دانشگاه آزاد اسلامی واحد رودهن

in this research, the mechanical properties of seven types of nanofilm with differing amounts of silver and silver-clay particles were studied. the elasticity of modulus, tensile strength, toughness, elongation at break, tear strength and color of nanofilms were compared with those of ordinary ldpe film. results showed that the inclusion of nano particles increased the modulus of elasticity, te...

2017
Domagoj Belić Mostafa M Shawrav Emmerich Bertagnolli Heinz D Wanzenboeck

This work presents a highly effective approach for the chemical purification of directly written 2D and 3D gold nanostructures suitable for plasmonics, biomolecule immobilisation, and nanoelectronics. Gold nano- and microstructures can be fabricated by one-step direct-write lithography process using focused electron beam induced deposition (FEBID). Typically, as-deposited gold nanostructures su...

Journal: :Nanoscale 2013
Yoon Hee Jang Kyungwha Chung Li Na Quan Barbora Špačková Hana Šípová Seyoung Moon Won Joon Cho Hae-Young Shin Yu Jin Jang Ji-Eun Lee Saji Thomas Kochuveedu Min Ji Yoon Jihyeon Kim Seokhyun Yoon Jin Kon Kim Donghyun Kim Jiří Homola Dong Ha Kim

Nanopatterned 2-dimensional Au nanocluster arrays with controlled configuration are fabricated onto reconstructed nanoporous poly(styrene-block-vinylpyridine) inverse micelle monolayer films. Near-field coupling of localized surface plasmons is studied and compared for disordered and ordered core-centered Au NC arrays. Differences in evolution of the absorption band and field enhancement upon A...

Journal: :Chemical communications 2009
Dachi Yang Guowen Meng Chuhong Zhu Xiaoguang Zhu

Generic approaches to nano-dots and nano-rings have been developed via sputtering an Au layer on one planar surface side of porous anodic aluminum oxide template and subsequent electrodeposition.

Journal: :Talanta 2012
Ahmed Galal Nada F Atta Ekram H El-Ads

Cysteine forms self-assembled monolayers over gold nanoparticles. Based on this knowledge, a novel electrochemical sensor (Au-Au(nano)-Cys-SDS) has been constructed by the formation of self-assembly monolayer (SAM) of cysteine on gold-nanoparticles modified gold electrode (Au-Au(nano)-Cys) to be utilized for determination of dopamine in the presence of sodium dodecyl sulfate (SDS). Electrochemi...

Journal: :Journal of visualized experiments : JoVE 2012
Zurab Kereselidze Victor H Romero Xomalin G Peralta Fidel Santamaria

The physical, chemical and optical properties of nano-scale colloids depend on their material composition, size and shape. There is a great interest in using nano-colloids for photo-thermal ablation, drug delivery and many other biomedical applications. Gold is particularly used because of its low toxicity. A property of metal nano-colloids is that they can have a strong surface plasmon resonan...

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