نتایج جستجو برای: mn5o8 nanorods

تعداد نتایج: 6494  

Journal: :Nanotechnology 2010
Raja G Rayavarapu Wilma Petersen Liesbeth Hartsuiker Patrick Chin Hans Janssen Fijs W B van Leeuwen Cees Otto Srirang Manohar Ton G van Leeuwen

We evaluated cellular responses to polymer-treated gold nanorods, which were synthesized using the standard wet-chemistry method that utilizes hexadecyltrimethylammonium bromide (CTAB). The nanorod dispersions were coated with either polystyrene sulfonate (PSS) or polyethylene glycol (PEG). Two sizes of nanorods were tested, with optical responses peaking at 628 and 773 nm. The cells were from ...

Journal: :Physical chemistry chemical physics : PCCP 2010
Elina Ploshnik Asaf Salant Uri Banin Roy Shenhar

Two-dimensional, hierarchical assemblies of nanorods were obtained by exploiting the structures afforded by block copolymers in ultrathin films. Under the appropriate conditions, the nanorods segregate to the film surface already upon casting the composite film, and organize with the block copolymer through phase separation. In this paper we compare the structures formed by CdSe nanorods of thr...

Journal: :Chemical communications 2011
Won Cho Seungjin Park Moonhyun Oh

Coordination polymer nanorods are synthesized from the hexagonal 3D structure of Fe-MIL-88B. Subsequently, hematite (α-Fe(2)O(3)) and magnetite (Fe(3)O(4)) nanorods are selectively prepared by controlling the calcination conditions of coordination polymer nanorods.

2008
O. Lupan L. Chow G. Chai H. Heinrich S. Park A. Schulte

We have developed a simple solution process to synthesize tin oxide nanorods. The influence of precursors and the reaction temperature on the morphology of SnO2 is investigated. SnO2 nanorods are characterized by X-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Raman spectroscopy. The as-grown SnO2 nanorods are uniform in size with a radius of 5...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2007
V R Rajeev Kumar A K Samal T S Sreeprasad T Pradeep

Hexagonal patterns of gold nanorods were made by assembling gold nanorod-coated poly(N-isopropyl acrylamide) microgels. The required population of nanorods on the microgels was achieved by attaching nanoparticle seeds on the latter and growing them to nanorods. The various materials prepared were characterized by UV-vis spectroscopy and transmission electron microscopy. Similar experiments with...

2009
Shutang Chen Xiaoling Zhang Qiuhua Zhang Weihong Tan

High quality CdS nanorods are synthesized reproducibly with cadmium acetate and sulfur as precursors in trioctylphosphine solution. The morphology, crystalline form and phase composition of CdS nanorods are characterized by transmission electron microscopy (TEM), high-resolution TEM and X-ray diffraction (XRD). CdS nanorods obtained are uniform with an aspect ratio of about 5:1 and in a wurtzit...

2011
Changyong Lan Jiangfeng Gong Shijiang Liu Shaoguang Yang

The synthesis of single-crystalline hollandite-type manganese oxides Na2-xMn8O16 nanorods by a simple molten salt method is reported for the first time. The nanorods were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and a superconducting quantum interference device magnetometer. The magnetic measurements indicated that the nanorods s...

Journal: :Physical chemistry chemical physics : PCCP 2016
Yong Gan Zheng Sun Zhen Chen

The acoustic vibrations of individual single-crystal and penta-twinned gold nanorods with widths from ∼7 to ∼26 nm are studied using atomic-level simulations and finite element calculations. It is demonstrated that the continuum model in the limit of an infinite rod length could be used to describe the breathing periods of nanorods with an aspect ratio as small as ∼2.5, in combination with bulk...

2013
Teen-Hang Meen Jenn-Kai Tsai Shi-Mian Chao Yu-Chien Lin Tien-Chuan Wu Tang-Yun Chang Liang-Wen Ji Walter Water Wen-Ray Chen I-Tseng Tang Chien-Jung Huang

In this study, we prepared different shapes of gold nanoparticles by seed-mediated growth method and applied them on the photoelectrodes of dye-sensitized solar cells (DSSCs) to study the surface plasma resonant (SPR) effect of gold nanoparticles on the photoelectrodes of dye-sensitized solar cells. The analyses of field emission scanning electron microscopy show that the average diameter of th...

2018
Yuan-Chang Liang Ya-Ru Lo Chein-Chung Wang Nian-Cih Xu

ZnO-ZnS core-shell nanorods are synthesized by combining the hydrothermal method and vacuum sputtering. The core-shell nanorods with variable ZnS shell thickness (7-46 nm) are synthesized by varying ZnS sputtering duration. Structural analyses demonstrated that the as-grown ZnS shell layers are well crystallized with preferring growth direction of ZnS (002). The sputtering-assisted synthesized ...

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