نتایج جستجو برای: au nano dendrites

تعداد نتایج: 138680  

2010
André Chwalibog Ewa Sawosz Anna Hotowy Jacek Szeliga Stanislaw Mitura Katarzyna Mitura Marta Grodzik Piotr Orlowski Aleksandra Sokolowska

PURPOSE The objective of the present investigation was to evaluate the morphologic characteristics of self-assemblies of diamond (nano-D), silver (nano-Ag), gold (nano-Au), and platinum (nano-Pt) nanoparticles with Staphylococcus aureus (bacteria) and Candida albicans (fungi), to determine the possibility of constructing microorganism-nanoparticle vehicles. METHODS Hydrocolloids of individual...

2017
Kuo-Hsiung Tseng Meng-Yun Chung Chaur-Yang Chang

In this study, the Electric Spark Discharge Method (ESDM) was employed with micro-electrical discharge machining (m-EDM) to create an electric arc that melted two electrodes in deionized water (DW) and fabricated nano-Au colloids through pulse discharges with a controlled on-off duration (TON-TOFF) and a total fabrication time of 1 min. A total of six on-off settings were tested under normal ex...

2014
Juan Hu Xianglong Zhu Hui Li Zhenghuan Zhao Xiaoqin Chi Guoming Huang Dengtong Huang Gang Liu Xiaomin Wang Jinhao Gao

Multifunctional nanostructures combining diagnosis and therapy modalities into one entity have drawn much attention in the biomedical applications. Herein, we report a simple and cost-effective method to synthesize a novel cubic Au nano-aggregates structure with edge-length of 80 nm (Au-80 CNAs), which display strong near-infrared (NIR) absorption, excellent water-solubility, good photothermal ...

Journal: :Nanotoxicology 2013
Martin J D Clift David O Raemy Carola Endes Zulqurnain Ali Andrea D Lehmann Christina Brandenberger Alke Petri-Fink Peter Wick Wolfgang J Parak Peter Gehr Roel P F Schins Barbara Rothen-Rutishauser

The aim of this study was to assess the interaction of a series of well characterised nano-objects with the Gram negative bacterium Salmonella typhimurium, and how such an interaction may relate to the potential mutagenicity of nano-objects. Transmission electron microscopy showed that nano-objects (Au-PMA-ATTO NPs, CeO₂ NPs, SWCNTs and MWCNTs), as well as CAFs entered S. typhimurium. Only DEPs...

Journal: :Biosensors & bioelectronics 2016
Veeradasan Perumal Uda Hashim Subash C B Gopinath R Haarindraprasad P Poopalan Wei-Wen Liu M Ravichandran S R Balakrishnan A R Ruslinda

Creating novel nanostructures is a primary step for high-performance analytical sensing. Herein, a new worm like nanostructure with Zinc Oxide-gold (ZnO/Au) hybrid was fabricated through an aqueous hydrothermal method, by doping Au-nanoparticle (AuNP) on the growing ZnO lattice. During ZnO growth, fine tuning the solution temperature expedites random curving of ZnO nanorods and forms nano-worms...

2015
Hong Jun Yin Zhao Yang Chen Yong Mei Zhao Ming Yang Lv Chun An Shi Zheng Long Wu Xin Zhang Luo Liu Ming Li Wang Hai Jun Xu

Surface enhanced Raman scattering (SERS) substrate based on fabricated Ag@Au core-shell dendrite was achieved. Ag dendrites were grown on Si wafer by the hydrothermal corrosion method and Au nanofilm on the surface of Ag dendritic nanostructure was then fabricated by chemical reduction. With the help of sodium borohydride in water, Au surface absorbates such as thiophene, adenine, rhodamine, sm...

2016
Chin-Yen Chou Win-Li Lin Shu-Chuan Liao

In this study, a new type of temperature sensor device was developed. The circular electrode of the thermal sensitive sensor was modified with TMT and O2 plasma to enhance the conductivity by forming a thin SnOxCy layer on the electrode surface. The Nano-Au particles were subjected to O2 plasma pretreatment to form peroxide groups on the surface. The thermally sensitive sensor was made by mixin...

2017
Feng Qiu Xiang Gao Jian Tang Yu-Yang Gao Shi-Li Shu Xue Han Qiang Li Qi-Chuan Jiang

The nano-sized SiCp/Al–Cu composites were successfully fabricated by combining semisolid stirring with ball milling technology. Microstructures were examined by an olympus optical microscope (OM), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). Tensile properties were studied at room temperature. The results show that the α-Al dendrites of the com...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Jianfeng Huang Sascha Vongehr Shaochun Tang Haiming Lu Jiancang Shen Xiangkang Meng

Dendritic Ag/Au bimetallic nanostructures have been synthesized via a galvanic replacement reaction (GRR) of Ag dendrites in a chlorauric acid (HAuCl4) solution. After short periods of time, one obtains structures with protruding flakes; these will mature into very porous structures with little Ag left over. The morphological, compositional, and crystal structural changes involved with reaction...

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.

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