Materials Literature
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The synthesised biobased calcium carbonate nanocrystals had demonstrated to be an effective carrier for delivery of anticancer drug doxorubicin (DOX). The use of these nanocrystals displayed high levels of selectivity and specificity in achieving effective cancer cell death without nonspecific toxicity. These results…
An environmentally benign approach for the manufacture of maleic anhydride functionalized cellulose nanocrystals (MA-CNCs) via one-pot tandem reactions with H2SO4 as a catalyst under organic solvent-free conditions was put forward. The effects of ball milling time, ultrasonication temperature and time on the yield and…
A technological foundation for transparent and ultra-bendable supercapacitors without percolation effects and depth limitations is introduced, with demonstrated examples in in- and out-of-plain ultra-deformation states. This prototype system, built on large-scale interdigitated pattern type electrodes, constitutes sig…
Highly flexible, conductive, and shape memory polyurethane nanocomposites were prepared using a robust and fast process. Functionalized graphene sheets were incorporated as crosslinkers in the prepolymer, prepared from a reaction of 4,4′-methylene bis(phenyl isocyanate) and poly(ε-caprolactone)diol. The covalently bon…
Two-dimensional sheets of transition metal (Mo and W) sulfides are attracting strong attention due to the unique electronic and optical properties associated with the material in its single-layer form. The single-layer MoS2 and WS2 are already in widespread commercial use in catalytic applications as both hydrotreatin…
Polymer particles consisting of a biodegradable poly[lactide-co-glycolide] (PLGA) core and a thermoresponsive shell have been formulated to encapsulate the dye rhodamine 6G and the potent cytotoxic drug paclitaxel. Cellular uptake of these particles is significantly enhanced above the thermal transition temperature (T…
Durability testing of solid oxide cell electrodes in reversing-current and constant-current operation modes is presented. (La0.8Sr0.2)0.98MnO3-δ-Zr0.84Y0.16O2-γ (LSM-YSZ) symmetric cells were tested at 800 °C in air with current densities of 0.5 and 1.5 A cm(-2), with current cycle periods of 1 and 12 h. A continuous…
We present a simple method for preparing water dispersible NaGdF4: Yb3+, Er3+/silica/gold nanoparticles. The emission intensity and color of the upconverting cores are modulated by the plasmonic absorbance and field enhancement from the gold nanoparticles. The applicability of hybrid NPs for multi-modal bioimaging pro…
The antioxidative effect of chemically reduced graphene oxide (rGO) on the thermal-oxidative stability of polypropylene (PP) was evaluated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). rGO was prepared by reduction of graphene oxide (GO) and characterized by atomic force microscopy,…
Research Article| January 01, 2013 Thermodynamics of Carbonates A.V. Radha; A.V. Radha Peter A. Rock Thermochemistry Laboratory and NEAT ORU (Nanomaterials in the Environment, Agriculture, and Technology Organized Research Unit), University of California Davis, Davis, California 95616, U.S.A., ravenkat@ucdavis.edu Sea…
A carbon coated Co-SiC nanocomposite was fabricated via in situ pyrolysis of methane on a hierarchical Co3O4-SiC nanostructure, which was obtained by hydrothermal synthesis. By the reduction of methane, the Co3O4 was in situ converted to cobalt nanoparticles, and coated by carbon or filled in the CNTs. The as-prepared…
Porous single-crystalline nanosheet (NS) arrays of Co3S4 have been synthesized via a simple shape and phase transformation route, which exhibits high specific capacitance (1081 F g−1 at 1.61 A g−1) and areal capacitance (2.69 F cm−2 at 4 mA cm−2 and 2.33 F cm−2 at 12 mA cm−2) with good cycling performance (96.2% capac…
In this work, we report on the fabrication, characterization, and photovoltaic properties of sputter-deposited, thin film heterojunctions combining p-type cupric oxide (CuO) absorber with n-type ZnO. The structural investigation reveals highly crystalline, columnar growth of the layers and confirms that the absorber's…
We show that the use of a periodic heat source, instead of a constant heat source, can improve the conversion efficiency of a thermoelectric power generator (TPG). A periodic heat source drives a periodic temperature difference across the thermoelectric with an amplitude ΔT. While the time average of ΔT is identical t…
A multifunctional nanoprobe, which can be used for dual modal imaging and the detection of cancer cells, has been reported.
Here we report on a nanoscale circular dichroism (CD) imaging for a two-dimensional chiral pair of nanostructures to elucidate the relationship between nanoscale chirality and CD activity. The chiral pair exhibited local ellipticity as high as 42 degrees in the CD signal at the center, with signals of both handedness…
VxOy@C catalysts were prepared from sucrose and NH4VO3 by a one-pot hydrothermal method. They showed satisfactory catalytic performance for the hydroxylation of benzene to phenol in acetonitrile using oxygen as the oxidant.
A facile synthesis of chiral penicillamine protected Au nanoclusters with different optical properties has been reported. We have for the first time observed the reversal of CD signals after the scaffolds adsorbed onto the surface of Au NCs. Such Au NCs are utilized for bioimaging due to their low cytotoxicity and sta…
In this contribution, nickel oxide (NiO) nanoflakes/graphene (NiO/G) nanocomposites have been prepared by a simple hydrothermal method followed by a thermal treatment with N2 gas. NiO nanoflakes (∼30–80 nm in diameter) are uniformly anchored on graphene sheets in a layer-by-layer form, which effectively prevents the a…
α-Chymotrypsin catalyzed oligomerization of the "dipeptide lego" KL-ethyl ester (OEt) in aqueous media triggers a rapid sol-gel transition due to formation of alternating (KL)x. Resulting mixed chain oligomers, at alkaline pH, self-assemble into β-sheets. Thereafter, intermolecular backbone hydrogen bonding between pe…