Materials Literature
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Nanoporous, hypercrosslinked polypyrroles with surface areas of up to 720 m2 g(-1) have been prepared; their pore sizes and gas adsorption selectivities were controlled by varying the size of the crosslinking units.
The requirement for narrow emission profiles and systems that do not include metals perceived to be cytotoxic, has led to an increase in the reports on rare-earth (Ln) materials, with fluoride-based materials in particular attracting attention. This class of compounds includes rare-earth fluorides (LnF(3)), rare-earth…
Mechanical compression was used to study the gelling characteristics of gelatin gels. Texture profile analysis (TPA) showed that the hardness of fish and mammalian gelatin increased significantly as the concentrations of gels increased. TPA attributes of 10% fish skin gel showed significant differences from those obta…
OOF2 is a program designed to compute the properties and local behaviour of material microstructures, starting from a two-dimensional representation, an image, of arbitrary geometrical complexity. OOF2 uses the finite element method to resolve the local behaviour of a material, and is designed to be used by materials…
We present the experimental visualization of the three-dimensional (3D) helical morphology of a polystyrene-block-polybutadiene-block-poly(methyl methacrylate) triblock terpolymer (SBM) using transmission electron microtomography. Our results uncovered a left-handed (and to a similar degree, right-handed) double helic…
Monte Carlo simulations are performed to study adsorption and desorption of coarse-grained peptide chains on generic gold and palladium surfaces in the presence of solvent. The atomistic structural details are ignored within the amino acid residues; however, their specificity and hydrophobicity are incorporated via an…
Layer-by-layer (LBL) multilayer films were fabricated from poly(vinylalcohol) (PVA) and poly[acrylamide-co-3-(acrylamido)phenylboronic acid] [P(AAm-AAPBA)] by the use of covalent phenylboronate ester bonding as the driving force. The film thickness increases with decreasing pH and increasing ionic strength of the asse…
Superparamagnetic iron oxide (SPIO) nanoparticles are widely used in magnetic resonance imaging (MRI) as versatile ultra-sensitive nanoprobes for cellular and molecular imaging of cancer. In this study, we report a one-step procedure for the surface functionalization of SPIO nanoparticles with a lung cancer-targeting…
We investigated the role of acoustic cavitation on sonophoretic skin permeation of calcein, a model permeant, across excised hairless rat skin. Three different frequencies (41, 158, 445 kHz) and various intensities (60 to 300 mW/cm(2)) of ultrasound were applied. Cavitation generation in degassed and undegassed (norma…
Four Keggin-based coordination polymers, namely, {[Cu2(4,4'-bpy)(4,4'-Hbpy)4(H2O)4](SiW12O40)2(H2O)4}n (1), {[Cu2(4,4'-bpy)(4,4'-Hbpy)6(SiW12O40)3](4,4'-Hbpy)2(H2O)7}n (2), {[Cu2(mu2-H2O)2(4,4'-bpy)3(SiW12O40)](H2O)6}n (3) and {[Cu2(mu2-OH)(4,4'-bpy)3(SiW12O40)(H2O)] [Cu2(mu2-O)(4,4'-bpy)4(H2O)2]0.5 x (H2O)3}n (4) (4,…
A layered gadolinium hydroxychloride (LGdH), [Gd2(OH)5(H2O)x]Cl, was synthesized from an aqueous solution of GdCl3.6H2O. The X-ray diffraction (XRD) and the selected area electron diffraction (SAED) studies showed that this compound crystallizes in the orthorhombic structure (a = 12.88(4) A, b = 7.30(2) A, and c = 8.4…
Here we report a study of the properties of A-site deficient lanthanum-doped SrTiO3 (La0.2Sr0.7TiO3) in order to establish its potential as an anode component material for intermediate temperature SOFCs. The behaviour of the material in reducing atmosphere has been investigated and results of thermal expansion and con…
The present work reports a replication approach to imprint complex micro/nanostructures into polymeric coatings and materials, such as silicone elastomers, polyurethane, ultra-high-molecular-weight polyethylene and polytetrafluoroethylene etc., with applications in engineering. Al and Al2O3 molds with terraced micro/n…
Chitosan and its derivative water soluble Chitosan oligosaccharide are used in a variety of applications in pharmaceutical preparations. In this study, 2 wild (ATCC 15729 and PAO1) and 2 mutant strains (PT121 and PT149) of P. aeruginosa are investigated for drug-drug interactions in vitro. 10 antimicrobial agents (ant…
Preface to the Second Edition. Preface to First Edition. Preface. 1 The Nature of Colloids . 1.1 Introduction. 1.2 Colloids in Action. 1.3 Concentrated Colloidal Dispersions. 1.4 Interfaces. 1.5 Surfactants. 1.6 Solution Polymers. 1.7 The World of Nanoparticles. 1.8 Preparation of Nanoparticles. 1.9 Nanocomposites. 1.…
Herein we present a simple method to coat a porous SiO2 layer on carbon nanotubes (CNTs) with the aid of the cationic surfactant cetyltrimethyl ammonium bromide (CTAB). The coating process was studied systematically, and a possible coating mechanism was proposed. Temperature and the ratio of CTAB/CNTs/H2O were found t…
The performance of solid oxide fuel cells (SOFCs) with thin film electrolytes and electrodes was investigated at a lower operating temperature regime . anode-supported unit cells with thin film components of a Ni–yttria-stabilized zirconia (YSZ) composite anode interlayer, a thin YSZ electrolyte, and a lanthanum stron…
Carboxymethyl cellulose (CMC) is one of the important cellulose derivativ es in industries, which is widely used as anti-caking agent, emulsifier , stabilizer, dispersing agent, thickener, and gelling agent. The main raw material of cellulose derivative is cellulose from wood and cotton linter. However, deforestation…
The synthesis and characterisation of a large family of trimetallic [Mn(III)(3)] Single-Molecule Magnets is presented. The complexes reported can be divided into three categories with general formulae (type 1) [Mn(III)(3)O(R-sao)(3)(X)(sol)(3-4)] (where R = H, Me, (t)Bu; X = (-)O(2)CR (R = H, Me, Ph etc); sol = py and…
Poly (hydroxyalkanoates) (PHAs) have recently attracted a great deal of academic and industrial interest for their biodegradability and biocompatibility making them suitable for environmental and biomedical applications. Poly(3-hydroxybutyrate-) (PHB-) and Poly(DL-lactide-co-glycolide) (PLGA-) based nanoparticles were…