Titanium dioxide and copper oxide nanoparticles are more and more widely used because of their catalytic properties, of their light absorbing properties (titanium dioxide) or of their biocidal properties (copper oxide), increasing the risk of adverse health effects. In this frame, the responses of mouse macrophages were studied. Both proteomic and targeted analyses were performed to investigate...

adsorption of no2 molecule on pristine and n-doped tio2 anatase nanoparticles have been studied using the density functional theory (dft) technique. the structural properties (such as bond lengths and bond angles) and the electronic properties (such as density of states, band structures and atomic partial charges) have been computed for considered nanoparticles. the results show that, the adsor...

While many natural and synthetic compounds exhibit auxin-like activity in bioassays, indole-3-acetic acid (IAA) is recognized as the key auxin in most plants. IAA has been implicated in almost all aspects of plant growth and development and a large array of bacteria have been reported to enhance plant growth. Cells of Klebsiella oxytoca isolated from the rhizosphere of Aspidosperma polyneuron a...

This paper presents the improvement of the antimicrobial character of woven fabrics based on cotton. The woven fabrics were cleaned in oxygen plasma and treated by padding with silver chloride and titanium dioxide particles. The existence of silver and titanium on woven fabrics was evidenced by electronic microscope images (SEM, EDAX) and by flame atomic absorption spectrophotometry. The antimi...

The Journal of Physical Chemistry is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Photoinduced oxidation of bromide to bromine on irradiated platinized titanium dioxide powders and platinized titanium dioxide particles supported on Nafion films Reza Dabestani, Xuelin Wang, Allen J. Bard, Alan Campion, Marye Anne Fox, Stephen E. Webber, and J. M. W...

Surface modification of titanium dioxide (TiO2) nanoparticle is essential to control its surface properties, thereby to enhance its cell penetration capability, reduce its cytotoxicity, or improve its biocompatibility. In order to graft polyvinyl acetate onto TiO2 nanoparticles, xanthate was chemically immobilized on the surface of TiO2 by acylation followed by nucleophilic substitution with a ...

There are three quantitative phosphoproteomic strategies most commonly used to study receptor tyrosine kinase (RTK) signaling. These strategies quantify changes in: (1) all three forms of phosphosites (phosphoserine, phosphothreonine and phosphotyrosine) following enrichment of phosphopeptides by titanium dioxide or immobilized metal affinity chromatography; (2) phosphotyrosine sites following ...

In this paper, the photocatalytic (UV-A/TiO2) degradation of two steroid hormones: norethisterone and danazol in aqueous medium has been studied using immobilized titanium dioxide as photocatalyst. The photolytic degradation (degradation without photocatalyst) of the two hormones was also investigated. UV-A irradiation was provided by black light lamp 18 W. The photocatalytic and photolytic deg...

413 Indian Journal of Dermatology 2014; 59(4) the patient may have taken, or due to the coloring agent titanium dioxide present in the tablet of levocetirizine. However, detailed history taking excluded possibility of both, as there was no other drug intake during last 4 weeks. Also, the patient did not develop any reaction on provocation with fexofenadine, which contained titanium dioxide. The...

Neste trabalho, o corante azul de metileno foi imobilizado na superfície do acetato de celulose modificado com dióxido de titânio produzindo um material híbrido sólido denominado de CA-TiO 2 MB. O experimento produziu uma quantidade de 1,8 mmol g de TiO 2 incorporado no acetato de celulose e uma quantidade de 0,170 0,005 mmol g de azul de metileno adsorvido na superfície do CA-TiO 2 . Um eletro...