Plasticiser loss, a fundamental mechanism in the degradation of polymeric materials, leads to material instability and contamination environment. The process depends on environmental conditions, but size container which an object is housed thickness also play key roles rate plasticiser loss time at equilibrium reached. Understanding these dependencies provides valuable insight into plastic muse...

Various digests of (32)P-labelled DNA were examined by two-dimensional ionophoresis on cellulose acetate and DEAE-cellulose paper. The products from digestion with pancreatic deoxyribonuclease and Neurospora crassa endonuclease were qualitatively closely similar, but very complex, and were used to investigate the mapping behaviour of nucleotides in various ionophoretic systems. Ionophoresis on ...

Omeprazole, a substituted benzimidazole, is a specific and noncompetitive inhibitor of the enzyme H/K-ATPase, known as the gastric proton pump. It is unstable in conditions of low pH and must be protected from the effects of gastric acid when given orally; thus, it is administered in the form of enteric-coated dosage/arms. In this present study, various coating solutions were prepared in differ...

acetate gel membranes. Clinica Chimica Acta 85: 183d191. Destro-Bisol G and Santini SA (1995) Electrophoresis on cellulose acetate and Cellogel: current status and perspectives. Journal of Chromatography A 698: 33d40. Golias TL (1971) Helena Laboratories Electrophoresis Manual. Beaumont, Texas: Helena Laboratories. Grunbaum BJ, ed. (1980) Handbook for Forensic Individualization of Human Blood a...

As one of the first semi-synthetic plastics produced industrially, cellulose acetate (CA)-based artefacts represent valued items in museum collections and archives which, however, present stability issues. High temperature relative humidity conditions have long been known to promote changes CA properties, for instance, due deacetylation polymer chains loss plasticiser from matrix. However, ther...

Agricultural residues such as corn fiber, rice hulls and wheat straw can be used as abundant low-cost feedstock for production of fuel ethanol. However, the cost of cellulase enzymes to saccharify cellulose to glucose is a major hindrance. As an alternative, a novel process to obtain industrially important cellulose acetate from these by-products after removing hemicellulosic sugars was develop...