Materials Literature
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The present paper deals with the applicability of biological monitoring to the assessment of exposure and possible effects deriving from exposure to engineered nanomaterials (NM). After establishing a conceptual framework in which human biomonitoring should be placed, the paper reviews the critical issues related to t…
Structure and morphology of nanowires (NWs) and nanotubes (NTs) of LnO/OH (Ln = La, Ce, Sm, Er), grown by displacement reaction inside anodic alumina membranes (AAM), were investigated as function of the deposition time and electrolytic bath temperature. Depositions performed at 6°C gave only tubular morphology for al…
Porous silicon-bonded silicon carbide with tailored pore structure was prepared from silicon carbide, silicon, carbon, and boron powders as starting materials. Three different kinds of silicon particle sizes were used as pore formers, namely, fine (2.6 µm), intermediate (12.9 µm) and coarse (169.8 µm) while sintering…
Magnetic refrigeration technology needs further development not just by the improvement of magnetocaloric properties but also the optimization of the cooling system design. One of the important problems in the cooling system design is the geometry of regenerator for the efficient heat transfer between magnetic materia…
Novel in-situ reduction approach was applied for the synthesis of palladium nanoparticles in the pores of mesoporous silica materials with grafted siliconhydride groups. Matrices possessing different structural properties (MCM-41, SBA-15 and Silochrom) were used. Samples were studied by nitrogen adsorption-desorption…
Ionic liquid-facilitated mobilization and reorganization of biopolymers in natural fibrous materials is visualized by confocal fluorescent spectromicroscopy. Ionic liquid-based processes controllably fuse adjacent fibres while simultaneously leaving selected amounts of biopolymers in their native states. These process…
The corrosion behavior of water borne epoxy-ester primer coatings (10% - 50% PVCs) was evaluated through electrochemical techniques such as polarization and impedance spectroscopic (EIS) measurements. Studies were carried out for a longer duration of exposure extending up to 60 days in aqueous solution of NaCl (5%). C…
Polyaniline (Pani) and polypyrrole (Ppy) half hollow spheres with different shell thicknesses were successfully synthesized by three steps process using polystyrene (PS) as the core. The PS core was synthesized by emulsion polymerization. Aniline and pyrrole monomers were polymerized on the surface of the PS core. The…
Two fumed silicas, one hydrophilic and another hydrophobic, were added to a two-component polyurethane (PU) adhesive and their properties compared. The filled polyurethanes were characterized by thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and wat…
This paper presents the results of kinetic studies of glass transition and crystallization in Se58Ge42-xPbx (x = 15, 18 & 20) glasses using differential scanning calorimetry (DSC). It has been observed that these glassy systems exhibit single glass transition and double crystallization on heating. The crystalline phas…
The unique plasmonic properties of the noble metal colloidal nanoparticles make them promising enhancement substrates for surface-enhanced Raman scattering. Obtaining of systems that provide ever-increasing enhancement of the Raman scattered light is a big challenge. Silver colloids studied here are prepared by LeeMei…
Organic-inorganic hybrid coatings have been prepared by sol-gel method of chitosan with different silanes. Silane precursors used in these coatings are glycidoxypropyltrimethoxysilane (GPTMS), Tetramethoxysilane (TEOS) and vinytrimethoxysilane (VTMS). The hybrid coatings have been evaluated by AT-FTIR and 13C-NMR anal…
The global demand for gelatin has been increasing over the years, because it has broad applications in the food, pharmaceutical, photographic, cosmetic and packaging industries. In the food industry, gelatin is used as an ingredient to enhance the elasticity, consistency and stability of food products. It is also used…
Non-specific adsorption of proteins at the tissue-material interface occurs shortly after implantation and is thought to initiate several host responses (thrombosis, inflammation, wound healing) as well as modify critical therapeutic properties like the drug release profile. Furthermore, it has been shown that substra…
Exploitation of plastic packaging films at large scale lead to ecological trouble because of their non- biodegradability. Utilization of plastics as packaging material has to be controlled to protect environment. A supporting pollution free environment can be created by use of eco-friendly packaging. Consequently, the…
This review presents an overview about antimicrobial activity of silver nanoparticles and then various synthesis approaches such as physical, chemical and biological methods. Silver has been in use since ancient time in the form of metallic silver, silver nitrate, silver sulfadiazine for the treatment of burns, wounds…
Poly (ethylene terephthalate), PET, fibrous assembly was treated by atmospheric pressure plasma (APP) jet with three different reactive gas sources, air, nitrogen and argon. The change in the wettability of single fiber surface due to the treatment was determined by the wetting force measurement with moving the fiber/…
The enhanced performance of chitosan (CHT) treated cotton fabric is anticipated tobe achieved by scaling down the particle size of former to nano level for its greater penetration into the fabric structure. Nano-chitosan (CHTN) was synthesized by ionic gelation of CHT and sodium tripolyphosphate (TPP). The sample was…
Silver nanoparticles (AgNPs) have been reported to be useful in various medical and life sciences related application. It has received considerable attention in order to develop an efficient methodology for its synthesis. Conventional chemical synthesis is said to be harmful when used in medical related applications.…
Nanoparticles are sized between 10-100nm and are of great scientific interest because of their unique properties. The unexpected and interesting unique properties of the nanoparticle are due to the large surface area and small size of the material. In this study, silver nanoparticle was synthesized via biological meth…