نتایج جستجو برای: cerium vanadate nanoparticles

تعداد نتایج: 111857  

2011
Shahrooz Saremi Fatemeh Atyabi Seyedeh Parinaz Akhlaghi Seyed Nasser Ostad Rassoul Dinarvand

The aim of this study was to prepare and evaluate mucoadhesive core-shell nanoparticles based on copolymerization of thiolated chitosan coated on poly methyl methacrylate cores as a carrier for oral delivery of docetaxel. Docetaxel-loaded nanoparticles with various concentrations were prepared via a radical emulsion polymerization method using cerium ammonium nitrate as an initiator. The physic...

Journal: :ACS nano 2008
Ling Qi Amit Sehgal Jean-Christophe Castaing Jean-Paul Chapel Jérôme Fresnais Jean-François Berret Fabrice Cousin

Rare earth cerium oxide (ceria) nanoparticles are stabilized using end-functional phosphonated-PEG oligomers. The complexation process and structure of the resulting hybrid core-shell singlet nanocolloids are described, characterized, and modeled using light and neutron scattering data. The adsorption mechanism is nonstoichiometric, yielding the number of adsorbed chains per particle N(ads) = 2...

2018
Shenqiang Zou Xiaofang Zhu Lirong Zhang Fan Guo Miaomiao Zhang Youwen Tan Aihua Gong Zhengzou Fang Huixiang Ju Chaoyang Wu Fengyi Du

Cerium oxide nanoparticles recently have received extensive attention in biomedical applications due to their excellent anti-oxidation performance. In this study, a simple, mild, and green approach was developed to synthesize cerium-doped carbonaceous nanoparticles (Ce-doped CNPs) using bio-mineralization of bull serum albumin (BSA) as precursor. The resultant Ce-doped CNPs exhibited uniform an...

2017
Olena Oriekhova Serge Stoll

Nowadays engineered nanomaterials (ENM) are widely present in different areas of our life. Large application of ENM in daily used customer products leads to its released into the environment. The fate of ENM in aquatic system isn’t clearly understood that pose the threat for leaving organisms and for human health. Before making the risk assessment and the toxicity tests ENM should be fully char...

2005
Qi Fu Weiling Deng Howard Saltsburg Maria Flytzani-Stephanopoulos

We report here on the high activity and stability of low-content gold–cerium oxide catalysts for the water–gas shift reaction (WGS). These catalysts are reversible in cyclic reduction–oxidation treatment up to 400 8C, are non-pyrophoric, and are thus potential candidates for application to hydrogen generation for fuel cell power production. Low-content (0.2–0.9 at.%) gold–ceria samples were pre...

Objective- The healing effect of chitosan supported cerium oxide nanoparticles (nano-CeO2) on cutaneous experimental excisional wound infected with pseudomonas aeruginosa was studied in rat. Design- Experimental Study. Animals- Sixty male albino rats. Procedures- The chitosan supported nano-CeO2 hydrogel was prepared and characterized using Fourier-transform infrared spectro...

2013
Noriya Izu Ichiro Matsubara Toshio Itoh Takafumi Akamatsu Woosuck Shin

Various types of CO sensors based on cerium oxide (ceria) have been reported recently. It has also been reported that the response speed of CO sensors fabricated from porous ceria thick films comprising nanoparticles is extremely high. However, the response value of such sensors is not suitably high. In this study, we investigated methods of improving the response values of CO sensors based on ...

Journal: :Chemical communications 2011
Xuemei Li Li Sun Anqing Ge Yingshu Guo

Polyacrylic acid coated nanoceria (PNCs) were found to greatly enhance the chemiluminescence (CL) intensity of the luminol-H(2)O(2) system, and by virtue of the catalytic ability of PNCs, a sensitive and specific sandwich assay for human α-thrombin was developed.

2017
Y. A. SYED

This present study has been described the synthesis, characterization and antibacterial activity of gadolinium doped cerium oxide nanoparticles. The nanoparticles were prepared by hydrothermal method with various concentrations of gadolinium ranges from 2 mol% to 8 mol%. The X-ray diffraction (XRD) pattern revealed the face-centered cubic structure with crystalline size of 58.3 nm to 57.4 nm wi...

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