Nanoparticles titanium oxide

Redfern PC, Zapol P, Curtiss LA, Rajh T, Thumauer MC. Computational studies of catechol and water interactions with titanium oxide nanoparticles. J Phys Chem B 2003 107 11419-27. 

Efforts at loading titanium oxide nanoparticles in PVA (commercially available from Nanophase) have been reported [65], In this report, titanium nanoparticles are dispersed in an aqueous solution of PVA with poly(melamine-co-formaldehyde). The solution is spun onto substrate and heated to generate a cross-Unked polymer-nanoparticle dielectric. A modest enhancement of dielectric constant is achieved for 600-nm thick films. Thin-film transistors using this composite show excellent pen-tacene mobility (> 0.2 cm V s ) and reasonable on/off ratios 10. Vj- —TV is reasonably high, suggesting static charge at the dielectric-semiconductor interface. 

Prior attempts at nanocomposite dielectrics made no attempt to control the nanostructure of the polymer/dielectric material through controlling the chemistry between the nanoparticle and the dielectric. The first example of the use of a well characterized core-shell nanostructured dielectric material appeared in 2005 [35]. Researchers at Bell Labs used narrowly dispersed anatase phase titanium oxide nanoparticles (rod-shaped -15 x 4 nm K = 31) as the high-A core material (see... 

B.X. Wang, Y. Zhao, X.P. Zhao, The wettability, size effect and electrorheological activity of modified titanium oxide nanoparticles, Colloids Surf. A, 2007, 295, 27. 

Another approach for designing biofuel cells is to combine the bioelectrocata-lytic properties of enzymes and light-harvesting nanomaterials such as metal oxide nanoparticles. Seeking for an efficient photoelectrolytic hydrogen production cell, hydrogenases were coupled to dye-sensitized titanium oxide nanoparticles. Two... 

Yongli, C., Xiufang, Z., Yandao, G., Nanming, Z., Tingying, Z., and Xinqi, S. 1999. Conformational changes of fibrinogen adsorption onto hydroxyapatite and titanium oxide nanoparticles. J. Colloid Interface Sci. 214 38 5. 

Matsuno R, Otsuka H, Takahara A (2006) Polystyrene-grafted titanium oxide nanoparticles prepared through surface-initiated nitroxide-mediated radical polymerization and their application to polymer hybrid thin films. Soft Matter 2(5) 415... 

Fig. 11 TEM image of titanium oxide nanoparticles (Ti02-NP). Reproduced with permission from Miao et al. (2008). 2008, Elsevier Ltd...

In plants it has been demonstrate that Ti02-NP could increase the nitrate reductive enzyme, increase the abilities to absorb and use water and fertilizer, promote antioxidant system, and accelerate germination (Lu et al. 2002 Zheng et al. 2005 Navarro et al. 2008). In particular these effects can be because titanium oxide nanoparticles have high specific surface area. 

Yun YH, Youn YN, Yoon SD, Lee JU (2012) Preparation and physical properties of starch-based nanocomposite films with the addition of titanium oxide nanoparticles. J Ceram Process Res... 

Bacterial Cellulose Hybrids with Titanium Oxide Nanoparticles (BC/TiO NPs)... 

Ionic liquid assisted titanium oxide nanoparticles... 

Similarly, Choi s group later has reported a method for entrapping titanium oxide nanoparticles into hydrophobic ally modified mesocellular siliceous foam (MCF), which serves as an efficient photocatalyst for the selective hydroxylation of benzene to phenol. As shown in Fig. 8.3, the interior of the hydrophobically modified MCF (by surface organo-grafting with silylation agent) provides a... 

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