Materials Literature
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Monoliths of nanoporous gold (np-Au) were modified with self-assembled monolayers of octadecanethiol (C18-SH), 8-mercaptooctyl α-D-mannopyranoside (αMan-C8-SH), and 8-mercapto-3,6-dioxaoctanol (HO-PEG2-SH), and the loading was assessed using thermogravimetric analysis (TGA). Modification with mixed SAMs containing αMa…
Bandgap engineering and shape control are important and advantageous for potential applications involving colloidal ZnO nanocrystals. Here we demonstrate the syntheses of high quality alloyed Cd(x)Zn(1-x)O nanocrystals with well-defined shapes, from faceted particles to tetrapods and ultrathin nanowires. By comparing…
A smart functional gelator containing salen and sorbitol moieties has been synthesized, and it shows excellent gelation behavior in organic–water mixtures. The gel exhibits an efficient ‘naked eye’ response to copper(II) through a reversible gel–sol transition, which is associated with a color change from yellow to co…
Zinc oxide (ZnO) nanocolumns have been prepared by a metal-organic chemical vapor deposition technique, and structural and optical characterization reveal that the nanocolumns have high crystalline and luminescent qualities. Au/MgO/ZnO/In structured Schottky diodes have been fabricated from the nanocolumns. An intense…
The synthesis of nickel (Ni) nanostructures through chemical reduction method using hydrazine (N 2 H 4 .6H 2 O) as the reducing agent and ethylene glycol (EG) as the surfactant is reported. The synthesis was conducted in 1 hour of heating at temperature of 60 °C. Sodium hydroxide (NaOH) was used to control the pH of s…
Pt/TiO2, Ce/TiO2 and binary system PtCe/TiO2 catalysts were prepared by impregnation method and the structural properties of these catalysts were investigated by means of XRD, CO-TPD and UV-vis diffuse reflectance spectroscopy. As investigated by XRD, the composition of the prepared samples anatase and rutile phases w…
In this work, a hybrid materials of MnO2-wrapped graphene aerogels (GAs) were prepared using a simple in situ reduction method. The porous GAs obtained in our work not only boost ion and electron movement in electrochemical processes but can also serve as a 3D skeleton for combining with MnO2, which allows the poor el…
To explore the soil workability of rotary blade suitable for large tilling depth (over 20 cm) manufactured through boronizing treatment, this work focuses on the corrosion behavior of 65Mn steel after boronizing treatment in two acid mediums, i.e. the strong acidic medium that hydrochloric solution and the weak acidic…
Using synchrotron radiation X-ray fluorescence (SRXRF), we have examined the biodistribution and pulmonary toxicity of nanoscale titanium dioxide (nanoTiO2) in mice at the elemental level. Notably, nanoTiO2 particles were mainly retained in lungs after intratracheal instillation, slowly cleared and were still present…
We present direct information showing that polyoxometalates (POMs) show destructive activity toward the model cell membrane, via the rapid adsorption of POMs on the vesicle surface. The crucial step in causing the vesicle destruction is the structural change into stable POM–lipid conjugates, which are known as surfact…
There has been extensive research on the use of nanovectors for cancer therapy. Targeted delivery of nanotherapeutics necessitates two important characteristics: the ability to accumulate at the disease locus after overcoming sequential biological barriers and the ability to carry a substantial therapeutic payload. Su…
In this paper, the chemical degradation of poly(e-capro lactone) by hydrolysis was carried out. Poly(e-caprolactone) was successfully synthesized via the ring-opening poly merization of e-caprolactone at 155℃ with ammon iu m heptamo lybdate. Poly(e-caprolactone) was characterized by Fourier Transform Infrared Spectros…
Nanoporous metal material with high specific surface area was created under the action of laser radiation with the use of radiation focusators. The regimes of laser action under which nanoporous layer is formed in the centre of the thermal-affected zone on the surface of the material being investigated containing the…
Phase change memory uses brief pulses of electrical current to induce phase transitions in chalcogenide material regions with dimensions near or even far below 50 nm. The strongly differing electrical conductivities of the crystalline and amorphous phases allow data storage at densities in excess of terabits per squar…
Electrospinning represents a low cost technique applied in the production of micro-and nano-fibres.The use of poly(vinyl alcohol) as supporting matrix in aqueous solution for fibre deposition introduces important advantages related with drug release (based on the low toxicity of polymer).On the other side, imperfectio…
Effect of volatile boron species on the microstructure and composition of dense La 0.8 Sr 0.2 MnO 3 (LSM) and La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) bar samples is studied in detail using secondary ion mass spectroscopy (SIMS) technique. Prior to the characterization, the bar samples were heat-treated at 800°C in air…
Vertical multi-layer graphenes (MLGs) have been synthesized without a catalyst on planar and nano-structured substrates by using microwave plasma enhanced chemical vapor deposition. The growth of MLGs on non-carbon substrates is quite different from that on carbon-based substrates. It starts with a pre-deposition of a…
Three-dimensional (3D) nanoporous nickel oxyhydroxide (NiOOH) films were prepared on a TiO2 nanoarray substrate by a novel surfactant-assisted photodeposition method using Ni2+-containing solutions as precursors, and their energy storage and conversion behaviors were investigated. In the photodeposition process, photo…
DNA stabilized fluorescent silver nanoclusters are promising materials, of which fluorescent properties can be exploited to develop sensors. Particularly, the presence of a DNA strand in the structure has promoted the development of gene sensors where one part of the sensor is able to recognize the target gene sequenc…
To understand the swelling behavior of cellulose nanofibril (CNF) films, the dimensional variation of untreated and phenol formaldehyde modified CNF (CNF/PF) films soaked in distilled water was examined in situ with microscopic image recording combined with pixel calculation. Results showed that a dramatic thickness i…