Materials Literature
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Industrially the epoxidation of soybean oil utilize peracids as oxidizing agents together with strong mineral acids as catalyst. To avoid the corrosive waste and undesirable epoxy-ring opening as well as polymerization under acidic conditions, new green catalytic processes in acid-free system have been paid great atte…
In order to optimize the charge transfer path in quantum dot sensitized solar cells (QDSCs), we employed successive ionic layer adsorption and reaction method to dope CdSe with Co for fabricating CdS/Co‐doped‐CdSe QDSCs constructed with CdS/Co‐doped‐CdSe deposited on mesoscopic TiO 2 film as photoanode, Pt counter ele…
Hydroxyapatite nanoparticles (HANPs) have numerous applications, such as substitute for bone grafting, bone fillers, bioceramic coating, and dental fillings. The toxicity of these nanomaterials is of growing concern despite their significant scientific interest and promising potential in many applications. In this stu…
Nano spinel ferrites MFe2O4 (M=Ni, Mn, Zn) were obtained by soft mechanochemical synthesis in a planetary ball mill. The appropriate mixture of oxide and hydroxide powders was used as initial compounds. All of this mixture of powders was mechanically activated, uniaxial pressed and sintered at 1100?C/2h. The phase com…
Liposomal coatings are formed on films of a biopolymer, hydrophobically modified chitosan (hm-chitosan), containing dodecyl groups as hydrophobes along the polymer backbone. The alkyl groups insert themselves into the liposome bilayer through hydrophobic interactions and thus tether liposomes, leading to a densely pac…
The combination of the varied sizes of Au NPs and seeding growth approach can be exploited to control the sizes of Au–Ag core–shell NPs. The silicon substrates with self-assembled Au–Ag core–shell NPs can be used to detect adenosine by a structures-switch aptamer.
Magnesium alloys are newly promising biomaterials with potential application of human bone replacement. However, there is a drawback due to their high corrosion rates. In this study, AZ31 magnesium alloys were coated using microarc oxidation (MAO) process. Two oxidation durations, 1 minute and 5 minutes, were used. Th…
Methods for evaluating the bactericidal and fungicidal activity of silver nanoparticles have been developed using solid culture media. Different cultures of microorganisms responsible for food spoilage have been used to evaluate the efficiency of the antimicrobial effect. The relative efficacy of silver-nanoparticle-b…
DPBI exists as highly fluorescent molecular wires and DPBI loaded TiO <sub>2</sub> is more efficient in RO4 photodegradation.
Blends of PVA/SA polymer doped with Montmorillonite were prepared by solution casting technique. Doping of nanoparticles to the polymer matrix does affect the structural and conducting properties. To analyze such changes, these films were subjected to X-ray diffraction, FT-IR spectroscopy, UV-visible absorbance and im…
Nanosilver was synthesized using the aqueous solution of solvent extracts of leaf and stem of Kedrostis foetidissima . Three different methods of formation of silver nanoparticles such as reaction at (i) room temperature, (ii) higher temperature, and (iii) sonication were employed in the present study. The synthesized…
Vertically aligned ZnO nanorods grown by simple three-step process on flexible sheets exhibit excellent diode performance even at fold state.
Tetrapod-like ZnO (T-ZnO) nanostructures were synthesized by a simple vapor phase oxidation method without any catalysts or additives. We optimized the performances of T-ZnO nanostructures by adjusting the partial pressure of Zn vapour in the total pressure of the quartz chamber and obtained T-ZnO nanostructure materi…
The first members of tetracyanidoborate salts with alkaline earth cations, [Mg(H2O)6][B(CN)4]2 (1), [Mg(H2O)2][B(CN)4]2 (2), [Mg(DMF)6][B(CN)4]2 (3), [Ca(H2O)3][B(CN)4]2 (4), and [Ca(H2O)2(CH3CN)][B(CN)4]2 (5), were synthesized. Their structures, obtained by single crystal X-ray diffraction, IR- and Raman spectra, as…
The structural, dielectric and magnetic properties of pure and Fe-Co co-doped Ba0.9Sr0.1TiO3, (Ba(1-x)SrxTiO3, where (x = 0.10) and (Ba0.9Sr0.1Ti(1-x-y)FexCoyO3), where (x = 0.1, y = 0) and (x = 0 and y = 0.10) and (x = 0.5, y = 0.5) in powder form, abbreviated as (BST) and (BST10FO), (BST10CO) and (BST5F5CO), respect…
The electrochromic transition of a nickel borate thin film between colorless and brown was examined by means of in situ XAFS and UV/vis spectroscopy. The XAFS spectra showed that the average valence state of the nickel species in the film changed from +2.1 to +3.8 following the application of an electrode potential. A…
A highly sensitive and broadband method of obtaining thin film permeability without sample-size limitations was developed based on the change in high-frequency impedance due to the skin effect. A microstrip probe with impedance matching of 50 Ω was fabricated, and placed in proximity to a magnetic thin film. The perme…
Recent observations of the negative differential conductance (NDC) phenomenon in graphene field-effect transistors (FET) open up new opportunities for their application in graphene-based fast switches, frequency multipliers and, most importantly, in high frequency oscillators up to the terahertz regime. Unlike convent…
The evolution of the “local triple-phase contact line” with increasing droplet volume on a micropillared superhydrophobic surface, from (a) the initial contacting stage to (b) the pinning stage to (c) the depinning stage. (d) The sketch of the evolutionary process of local contact angles.
We demonstrated optical amplification in BaYF 5 : 20% Yb 3+ , 2% Er 3+ (BYF) nanocrystals doped polymer waveguide. BYF nanocrystals with an average size of ∼13 nm were synthesized by a high‐boiling solvent process. Intense 1.53 μ m fluorescence was obtained in the nanocrystals under excitation at 980 nm. An optical po…