A smooth white glaze, (Figure 1) with a buttery surface and smooth breaking on edges, just enough change of whiteness in a crevice pooling, seemingly opaque when thicker, but with a certain glow, a slight grey showing through. It crazes slightly, a fine webbing of cracks. Not enough to be decorative crazing, and not enough crazing to make me abandon the glaze, but enough crazing that I would li...

AIM To investigate and compare the cytopathological and clinical effects of amniotic membrane transplantation (AMT) and oral mucosal membrane transplantation (OMMT) in socket contraction. METHODS Twelve patients who could not be fitted with ocular prosthesis due to socket contracture were included in this study. Seven patients underwent AMT and 5 patients underwent OMMT. Thirteen patients who...

Surfaces of Wyoming SWy-2-Na-montmorillonite were modified using ultrasonic and hydrothermal methods through the intercalation and adsorption of the cationic surfactant octadecyltrimethylammonium bromide (ODTMA). Changes in the surfaces and structure were characterized using X-ray diffraction (XRD), thermal analysis (TG), and electron microscopy. The ultrasonic preparation method results in a h...

Animal feeding studies have demonstrated that clay additives, such as bentonites, can bind aflatoxins in ingested feed and reduce or eliminate the toxicity. Bentonite deposits are found throughout the world and mostly consist of expandable smectite minerals, such as montmorillonite. The surfaces of smectite minerals can be treated with organic compounds to create surface-modified clays that mor...

Packaging plastics are called ‘single-use plastics’ because of short lifetime. Among which, the three polyethylene (PE), polypropylene (PP), and terephthalate (PET) take more than 70%. Due to incompatibility, few research has been done on alloy plastics. The aim this study is investigate possibility single-use plastic (SUPA) ternary PE, PP, PET as 3D printing material. Tensile bending tests car...

This paper deals with the synthesis of a biocompatible chitosan ammonium salt N-(2-hydroxy) propyl-3-trimethylammonium chitosan chloride (HTCC) and using it in montmorillonite ion-exchange process. HTCC-modified montmorillonite (Mt) with different chemical ratios was successfully synthesized, and their characteristics have been verified by XRD and FTIR analyses. Produced samples have been evalu...

Introduction Poly(urethane urea) multiblock copolymers [PUU] are used in variety of biomedical applications, including as blood-contacting components in ventricular assist systems. One of the drawbacks of these materials (particularly when used in completely implantable devices) is their relatively high permeability to air and moisture. Conventional biomedical PUU elastomers are generally compo...

Porous clay heterostructures (PCH) based on modified montmorillonite were synthesized using different reaction conditions (different hydration degrees, pH values and reaction times). The PCH precursors and PCH were characterized using FTIR Spectroscopy and X-Ray Diffractions (XRD). The XRD results showed that basal distance of porous clay heterostructures was significantly influenced by the mod...