Materials Literature
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Covering: 1998 to July 2010 Since 1998, a great number of bufadienolides have been reported from plants, animals and plant cell suspensions, as well as from fungi and bacteria cultures. This review summarizes both new bufadienolides and those obtained from new sources, together with data regarding the antitumor activi…
We report the synthesis of 2 nm copper nanocrystals (Cu NCs) via a microwave-assisted polyol method without using additional protective and reducing agents. The Cu NCs are oxidation resistant and exhibit photoluminescence and highly stable properties in a colloidal dispersion.
Organic materials for memory devices have attracted significant scientific interest recently due to the advantages of rich structure flexibility, low cost, solution processability, and three-dimensional stacking capability. This minireview highlights the recent developments in donor–acceptor polymers for resistive swi…
We present compelling experimental evidence supported by theoretical arguments demonstrating that the periodic twisting pitch in protein amyloid fibrils arises from the fine balance between competing electrostatic energy and torsional elastic energy stored along the fibrils contour length. To construct the present pic…
Porous organic frameworks (POFs) have attracted considerable attention due to their high surface areas and good mechanical properties. A series of vivid characteristics in POFs, such as their plentiful phenyl rings texture, their high surface area, uniform pore size distribution and permanent porosity, make themselves…
A thermally and chemically stable “click-based” porous organic polymer with high surface area was synthesized from two tetrahedral building blocks.
Catalytic membrane reactors which carry out separation and reaction in a single unit are expected to be a promising approach to achieve green and sustainable chemistry with less energy consumption and lower pollution. This article presents a review of the recent progress of dense ceramic catalytic membranes and membra…
High power electrical energy storage systems are becoming critical devices for advanced energy storage technology. This is true in part due to their high rate capabilities and moderate energy densities which allow them to capture power efficiently from evanescent, renewable energy sources. High power systems include b…
Monodispersed hollow magnetite spheres with diameter of about 500 nm and a shell thickness of approximately 150 nm were synthesized through a simple solvothermal process in ethylene glycol (EG) in the presence of polyvinyl-pyrrolidone and urea for electromagnetic absorption applications. The electron microscopy images…
Praseodymium-cerium oxide (PCO) solid solutions exhibit mixed ionic electronic conductivity (MIEC) behavior in a relatively high and readily accessible oxygen partial pressure (P(O(2))) regime and as such serve as a model system for investigating the correlation between thermodynamic and kinetic properties and perform…
When Eu(3+) ions occupy Ca(2+) sites of CaMoO(4), which has a body centered tetragonal structure with inversion symmetry, only the magnetic dipole transition ((5)D(0)→(7)F(1)) should be allowed according to Judd-Ofelt theory. Even if there are a few distortions in the Eu(3+) environment, its intensity should be more t…
Oxygen production by air separation is of great importance in both environmental and industrial processes as most large scale clean energy technologies require oxygen as feed gas. Currently the conventional cryogenic air separation unit is a major economic impediment to the deployment of these clean energy technologie…
Ultrathin films of aligned cellulose nanocrystals (CNCs) were deposited on solid supports by using convective and shear forces. Compared to previous systems involving high electric or magnetic fields to control the orientation of these rod-like natural nanoparticles, the proposed process of alignment was very simple,…
Optical waveguides synthesized at the micro/nanoscale have drawn great interest for their potential applications in high speed miniaturized photonic integrations. In this Perspective article, we mainly focus on the related works on active optical waveguides based on functional small organic molecules in micro/nano reg…
AucorePdshell (Au@Pd) bimetallic nanoparticles of sub-10 nm were successfully dispersed on graphene by a simple one step reducing method. The Au@Pd nanoparticles–graphene (Au@Pd–G) hybrids were characterized by high-resolution transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectros…
An ultrathin nickel hydroxidenitrate nanoflake-ZnO nanowire hybrid array has been synthesized by a facile low-cost solution route and has demonstrated high-rate energy storage in pseudocapacitor application with remarkable specific capacitance and excellent cycling stability.
Ultra-small multifunctional KGdF4:Tm3+,Yb3+ nanoparticles with near-infrared to near-infrared upconversion are synthesized. The average sizes of KGdF4:Tm3+ 2%, Yb3+ 20% core-only and KGdF4:Tm3+ 2%, Yb3+ 20%/KGdF4 core–shell nanoparticles are ∼3.7 nm and ∼7.4 nm, respectively, which fall within the reported optimal siz…
Synthesis of silver nanoparticles (AgNPs) using Polyalthia longifolia leaf extract as reducing and capping agent along with D-sorbitol used to increase the stability of the nanoparticles has been reported. The reaction is carried out at two different concentrations (10 −3 M and 10 −4 M) of silver nitrate, and the effe…
Stable supramolecular hydrogels were obtained from Fmoc (N-fluorenyl-9-methoxycarbonyl) protected synthetic dipeptides, Fmoc-Xaa-Asp-OH (Xaa = Tyr, Phe). These hydrogels were characterized by various methods including transmission electron microscopy (TEM), field-emission scanning electron microscopy (FE-SEM), atomic…
Highly-fluorescent CdSe/CdS/ZnS core/multi-shell quantum dot (QD) nanophosphors were successfully synthesized via a phosphine-free and continual precursor injection method in paraffin liquid for the first time. The as-prepared cubic zinc blended QDs showed high photoluminescent quantum yield (PLQY) and excellent optic…