Titanium dioxide nanoparticles modified by salicylic acid and arginine: Structure, surface properties and photocatalytic decomposition of p-nitrophenol

2016 ◽  
Vol 363 ◽  
pp. 627-635 ◽  
Author(s):  
Lei Li ◽  
Yujie Feng ◽  
Youzhi Liu ◽  
Bing Wei ◽  
Jiaxin Guo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Salicylic Acid ◽  
Surface Properties ◽  
Titanium Dioxide Nanoparticles ◽  
Photocatalytic Decomposition ◽  
Structure Surface

scholarly journals Features of Surface Structures of Alumina and Titanium Dioxide Nanoparticles Produced Using Different Synthesis Methods

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Vyacheslav Syzrantsev ◽  
Evgenii Paukshtis ◽  
Tatyana Larina ◽  
Yuriy Chesalov ◽  
Sergey Bardakhanov ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Surface Properties ◽  
Titanium Dioxide Nanoparticles ◽  
Energy Shift ◽  
Synthesis Methods ◽  
Diffuse Reflection Spectroscopy ◽  
X Ray Diffraction ◽  
Significant Difference ◽  
Luminescence Characteristics ◽  
Comprehensive Study

A comparative study of the scope and surface properties of alumina (Al2O3) and titanium dioxide (TiO2) nanoparticles, synthesized using different methods, was carried out using Fourier-transform infrared spectroscopy (FTIR), ultraviolet UV-Vis diffuse reflection spectroscopy (UV-Vis DRS), and Raman spectroscopy, as well as X-ray diffraction methods. It is shown that the differences in the synthesis methods can change the surface properties of the nanoparticles, while maintaining the phase composition of the material. The nanoparticles of each material are shown to exhibit unexpected properties. In particular, the special luminescence characteristics of TiO2, a photon-energy shift from the rutile region into that region typical for the anatase, and a significant difference in the Lewis center concentration values for the alumina γ-phase were observed. This variation in the properties indicates the necessity to involve a wider range of analysis techniques and the importance of precisely characterizing the surface properties. To identify those nanoparticle functional properties that determine their interactions with other materials, a comprehensive study of their phase compositions and surface properties must be completed.

A facile colorimetric assay for determination of salicylic acid in tobacco leaves using titanium dioxide nanoparticles

2014 ◽  
Vol 6 (6) ◽  
pp. 1759-1765 ◽  
Author(s):  
Po-Jen Tseng ◽  
Chiung-Yi Wang ◽  
Tzu-Yun Huang ◽  
Yuan-Yu Chuang ◽  
Shih-Feng Fu ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Salicylic Acid ◽  
Colorimetric Assay ◽  
Titanium Dioxide Nanoparticles ◽  
Colorimetric Sensing ◽  
Tobacco Leaves

Colorimetric sensing of salicylic acid in tobacco leaves in situ using TiO2 NPs.

Photocatalytic decomposition of cyanide in pure water by biphasic titanium dioxide nanoparticles

2015 ◽  
Vol 57 (43) ◽  
pp. 20503-20510 ◽  
Author(s):  
Hossein Ijadpanah-Saravi ◽  
Saeed Dehestaniathar ◽  
Ahmad Khodadadi-Darban ◽  
Mehdi Zolfaghari ◽  
Saeed Saeedzadeh
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Pure Water ◽  
Photocatalytic Decomposition

Hormonal and organ-specific dysfunction induced by the interaction between titanium dioxide nanoparticles and salicylic acid in male mice

2016 ◽  
Vol 27 (4) ◽  
Author(s):  
Nahla S. El-Shenawy ◽  
Mohammad S. Al-Harbi ◽  
Fatimah F.E. Al hamayani
Keyword(s):  
Oxidative Stress ◽  
Titanium Dioxide ◽  
Salicylic Acid ◽  
Titanium Dioxide Nanoparticles ◽  
Orthopedic Implants ◽  
Potential Health ◽  
Toxicological Effect ◽  
Organ Specific ◽  
Liver And Kidney ◽  
Kidney Functions

AbstractNanomaterials coating gained much concern in orthopedic implants and cosmetics. Drug combination may be a promising strategy for treating multi-factorial diseases. Titanium dioxide (TDN) nanoparticles are being widely used in many industries as well as in medicine and pharmacology. Therefore, increased human and environmental exposure can be expected, which has put TDN under toxicological scrutiny, and it is necessary to address the potential health and safety implications of nanomaterials used in nanomedicine. The toxicity of titanium oxide nanoparticles (TDN) and salicylic acid (SA) separately or in combination was studied for 21 days.The liver and kidney biomarker were determined, and hormones and oxidative stress levels were detected in mice.The intraperitoneal (i.p.) injection of TDN and SA in combination had a potential toxicological effect on major organs and hormonal homeostasis of mice. TDN and SA could antagonistically interact to affect the liver and kidney functions. No synergistic damage was observed in the liver function of mice that were treated with both TDN and SA as compared to the SA group. TDN acted as a synergistic agent to SA in the case of total cholesterol and total proteins levels. SA acted as antagonistic to the effect of TDN when injected together in mice because the effect on kidney functions is less than that predicted on the basis of the additive. The effect of co-administration of SA and TDN on the following hormones; triiodothyronine, thyroxine, estradiol II and insulin various among additive, potentiation, antagonistic and no effect, respectively as compared to TDN group. The interaction of TDN and SA was also found to induce oxidative stress as indicated by the increase in lipid peroxidation (LPO) levels. The decrease in the level of the reduced glutathione in the co-treated group indicated that there were no synergistic damages. SA and TDN co-administration could induce a potential increase in LPO levels in liver, kidney, and spleen but not in heart tissue. These results have not suggested that TDN and SA have a synergistic sub-chronic toxicity in mice after i.p. administration. SA may decrease the toxicity of TDN to some degree that could be related to the potentiation chemical reaction between SA and TDN.Our results suggested that the damage observed in mice treated with TDN and SA is organ-specific and associated with hormonal homeostasis and oxidative damage.

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