نتایج جستجو برای: zinc ferrites nanoparticle

تعداد نتایج: 104798  

2016
Jia Lu Weijia Zhou Likai Wang Jin Jia Yunting Ke Linjing Yang Kai Zhou Xiaojun Liu Zhenghua Tang Ligui Li Shaowei Chen

Core−shell nanocomposites based on Au nanoparticle@zinc−ironembedded porous carbons (Au@Zn−Fe−C) derived from metal−organic frameworks were prepared as bifunctional electrocatalysts for both oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER). A single Au nanoparticle of 50−100 nm in diameter was encapsulated within a porous carbon shell embedded with Zn−Fe compounds. The resu...

2017
Vincent Coger

Thiswork highlights the laser-based aqueous synthesis and processing of nanocomposites, composed of zinc or iron nanoparticles embedded in a N-Vinylcaprolactam microgel matrix, with potential applicability as ion releasing fiber pads forwound healing. An in situ laser process formicrogel synthesis is developed and optimized for high embedded nanoparticle yields, evaluating influences of laser r...

2015
Z. Ž. Lazarević D. L. Sekulić V. N. Ivanovski N. Ž. Romčević

NiFe2O4 (nickel ferrite), ZnFe2O4 (zinc ferrite) and Ni0.5Zn0.5Fe2O4 (nickel-zinc ferrite) were prepared by mechanochemical route in a planetary ball mill starting from mixture of the appropriate quantities of the Ni(OH)2/Fe(OH)3, Zn(OH)2/Fe(OH)3 and Ni(OH)2/Zn(OH)2/Fe(OH)3 hydroxide powders. In order to monitor the progress of chemical reaction and confirm phase formation, powder samples obtai...

Journal: :Fuel 2021

Gasification experiments in this study were performed a 2–4 MW indirect gasifier coupled to semi-commercial CFB combustor at Chalmers University of Technology. Experiments carried out during 13 days with automotive shredder residue (ASR), giving unique opportunity investigate the bed material under realistic conditions and long residence times. The metal rich ash was accumulated bed, gaining so...

Humic acid by binding to biotoxin, can vary their toxicity and mobility at different environments. Therefore, the interaction between nanoparticles and humic acid is considered environmental point of view specially. The objective of this study was investigation of ZnO nanoparticle toxicity on rapeseed at germination growing stage, and also study of the nanoparticle toxicity reduction by humic a...

2017
Sylvie Skalickova Martin Loffelmann Michael Gargulak Marta Kepinska Michaela Docekalova Dagmar Uhlirova Martina Stankova Carlos Fernandez Halina Milnerowicz Branislav Ruttkay-Nedecky Rene Kizek

This work investigated the preparation of chitosan nanoparticles used as carriers for doxorubicin for targeted cancer delivery. Prepared nanocarriers were stabilized and functionalized via zinc ions incorporated into the chitosan nanoparticle backbone. We took the advantage of high expression of sarcosine in the prostate cancer cells. The prostate cancer targeting was mediated by the AntiSar an...

Journal: :Nature nanotechnology 2011
Nam-Hyuk Cho Taek-Chin Cheong Ji Hyun Min Jun Hua Wu Sang Jin Lee Daehong Kim Jae-Seong Yang Sanguk Kim Young Keun Kim Seung-Yong Seong

Dendritic cell-based cancer immunotherapy requires tumour antigens to be delivered efficiently into dendritic cells and their migration to be monitored in vivo. Nanoparticles have been explored as carriers for antigen delivery, but applications have been limited by the toxicity of the solvents used to make nanoparticles, and by the need to use transfection agents to deliver nanoparticles into c...

زرگر شوشتری, مرتضی, سلطانی, میترا, موسوی قهفرخی, سید ابراهیم,

In this paper, the chromium doped spinel zinc ferrite nanoparticles were synthesized by using of glycine as a fuel with microwave combustion method. After preparing the samples  with x = 0.0, 0.5, 1.0, 1.5, 2.0, the electromagnetic and electrical properties such as dielectric constant, ac conductivity, dielectric loss factor (and Curie temperature were investigated. According to the results, in...

2014
Niyaz Mohammad Mahmoodi Jafar Abdi Dariush Bastani

The magnetic adsorbent nanoparticle was modified using cationic surface active agent. Zinc ferrite nanoparticle and cetyl trimethylammonium bromide were used as an adsorbent and a surface active agent, respectively. Dye removal ability of the surface modified nanoparticle as an adsorbent was investigated. Direct Green 6 (DG6), Direct Red 31 (DR31) and Direct Red 23 (DR23) were used. The charact...

Journal: :Düzce Üniversitesi bilim ve teknoloji dergisi 2021

In this study, influence of nano-zinc oxide treatment on the UV protection properties widely used apparel fabrics including flax, polyester, and nylon, were investigated by means ultraviolet factor (UPF) assessment. Nanoparticle content nylon determined to be 1.2, 0.9, 1.5 wt%, respectively. The UPFs non-treated in range 2.2 entire region. An improvement UPF was obtained after introducing nanop...

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