Materials Literature
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Commercial products using organic light emitting diode (OLED) display technology have begun to appear in cell phones, mp3 players and even televisions. One key area that has allowed and will allow for this technology to continue its ascension into the flat panel display and lighting markets is materials R&D. From this…
Grand Canonical Monte Carlo (GCMC) simulations are performed to study hydrogen physisorption in different nano carbon porous materials made up of different substructures including carbon nanotubes (CNT), graphene sheets and C60. Hydrogen weight percentage (wt%) at different temperatures with pressure ranging from 1 to…
A computational method to obtain optical conductivities from first principles is presented. It exploits a relation between the conductivity and the complex dielectric function, which is constructed from the full electronic band structure within the random‐phase approximation. In contrast to the Drude model, no empiric…
A low-cost, green and reproducible probiotic microbe (Lactobacillus sporogens) mediated biosynthesis of ZnO nanoparticles is reported. The synthesis is performed akin to room tem-perature in five replicate samples. X-ray and transmission electron microscopy analyses are performed to ascertain the formation of ZnO nano…
The oxidative lactonization of various diols using molecular oxygen as a primary oxidant can be efficiently catalyzed by hydrotalcite-supported Au nanoparticles (Au/HT). For instance, lactonization of 1,4-butanediol gave γ-butyrolactone with an excellent turnover number of 1400. After lactonization, the Au/HT can be r…
The unique structure of carbon nanotubes endows them with fantastic physical and chemical characteristics. Carbon nanotubes have been widely studied due to their potential applications in many fields including conductive and high‐strength composites, energy storage and energy conversion devices, sensors, field emissio…
Catalytic degradation of organic dye molecules has attracted extensive attention due to their high toxicity to water resources. In this paper, we propose a novel method for the fabrication of uniform silver-coated ZnO nanowire arrays. The degradation of typical dye molecule rhodamine 6G (R6G), as an example, is invest…
An experimental study aimed at understanding the interactions between exopolymers exuded by microorganisms and clays, particularly kaolinite, is described. Two biopolymers–-xanthan gum, an anionic bacterial extracellular polysaccharide, and guar gum, a neutrally charged plant polysaccharide–-were used as exopolymer an…
The aim of this work was to study the influence of calcium carbonate nanoparticles in both tensile and impact mechanical properties of a polypropylene homopolymer. Four compositions of PP/CaCO3 nanocomposites were prepared in a co-rotational twin screw extruder machine with calcium carbonate content of 3, 5, 7 and 10…
The production of complex, yet well defined materials offers many opportunities in regenerative medicine, in which the mechanical and biological properties of the matrix must meet stringent requirements. Here we report the recombinant production of modular polypeptidic materials, based on the highly resilient protein…
In recent years, nanoparticles have played an ever increasing role in biomedical research and clinical applications. The unique physical properties of nanomaterials are being exploited in the field of nanomedicine for applications as diverse as drug delivery and targeting, MRI contrast enhancement, gene therapy, bioma…
Porous colloidal particles have recently attracted a renewed interest in both fundamental and applied research. The large internal surface area and adsorbent potential of porous particles have led to their widespread application in diverse fields, including sensing, catalysis, drug delivery, and separations. This revi…
Nanoparticles are now an indispensable material for science and technology such an in materials, medicals, and cosmetics areas. Controlling the dispersion stability of nanoparticles in various liquid media is an essential issue to control the properties of the final products. At the beginning of this review, we will i…
We present a straightforward technique for the synthesis of asymmetric colloidal molecules with uniform and well-controlled bond angles. The new method makes use of coalescence of liquid protrusions on polystyrene spheres. The bond angle between the seed particles and central sphere can be chosen as desired by adjusti…
Microscale topographical features have been known to affect cell behavior. An important target in this area is to integrate top down techniques with bottom up self-assembly to create three-dimensional (3D) patterned bioactive mimics of extracellular matrices. We report a novel approach toward this goal and demonstrate…
A new strategy was developed to prepare raspberry-like particles by introducing poly(acrylic acid) (PAA)-functionalized polystyrene (PS) particles into hydrolysis reaction of tetraethoxysilane (TEOS). The monodisperse PAA-functionalized PS particles were used as cores and nanosized silica particles were then assembled…
This research evaluated the toxicity of TiO2 nanoparticles to freshwater aquatic organisms and the effects of organic and inorganic material on TiO2 toxicity. The fathead minnow was much less acutely sensitive to TiO2 (LC50 500 mg/l and higher) than Ceriodaphnia dubia and Daphnia pulex (mean LC50 values 7.6 and 9.2 mg…
In azobenzene-containing block copolymers (azo BCPs), the reversible trans–cisphotoisomerization of the chromophore can be coupled with the microphase separation-induced morphology. Recent studies revealed a number of new functions generated from the interaction of photoactivity and self-organized nanostructures in BC…
A super gelator (F3) with an excellent gelation ability was synthesized; the organogel of F3 could allow two channel recognition of F-, AcO- and H2PO4- through proton controlled reversible sol-gel transition and color changes.
An effective force coarse-graining (EF-CG) method is presented in this paper that complements the more general multiscale coarse-graining (MS-CG) methodology. The EF-CG method determines effective pairwise forces between coarse-grained sites by averaging over the atomistic forces between the corresponding atomic group…