Waste from tea, a beverage globally consumed is a common menace discarded to the environment thereby contributing to environmental pollution. The textile and paper industries have also been major culprits in the pollution of the environment through their indiscriminate discharge of dye solutions. These dyes are carcinogenic, mutagenic, and generally harmful to the entire eco-system; this has po...

Microcystis aeruginosa is a single-celled cyanobacterium, forming large colonies on the surface of freshwater ecosystems during summer, and producing a toxin (microcystin) that in high concentration can be harmful to humans and animals. These toxic effects can be governed by abiotic environmental conditions including water temperature, light, nutrient abundance, and fluid motion. We investigate...

A procedure for the purification of cholyl CoA:glycine and taurine N-acyltransferase activities from the soluble cell fraction of bovine liver is described. The procedure results is an 900-fold enrichment relative to the soluble cell fraction. The final preparation gives a single band on sodium dodecyl sulfate-polyacrylamide gel electrophoresis, Mr = 50,900, and runs as a single peak, Mr = 47,0...

Glucose oxidase (GOD) kinetics comprises a group of inhibitory, deactivant and diffusional phenomena interacting with each other in a complex way. These phenomena have given rise to differing interpretations, and their description is hindered by studies at moderate glucose concentrations (usual condition in many applications of the enzyme), the presence (or absence) of catalase in the enzymatic...

Chain-growth polymerizations are popular methods because they allow synthesis of highmolecular weight polymers in high yields and in short times. However, copolymers prepared by such processes generally exhibit uncontrolled monomer sequences. The controlled radical copolymerization of styrene with N-substituted maleimides is an interesting exception allowing preparation of controlled primary st...

The surface plasmon resonance (SPR) biosensor method has emerged as a very flexible and powerful approach for detecting a wide diversity of biomolecular interactions. SPR monitors molecular interactions in real time and provides significant advantages over optical or calorimetric methods for systems with strong binding and low spectroscopic signals or reaction heats. The SPR method simultaneous...

This study reports a preparation method of a new moisture swing sorbent for CO2 capture from air. The new sorbent components include ion exchange resin (IER) and polyvinyl chloride (PVC) as a binder. The IER can absorb CO2 when surrounding is dry and release CO2 when surrounding is wet. The manuscript presents the studies of membrane structure, kinetic model of absorption process, performance o...

Kinetic experiments have been made with an apparently homogenous preparation of human liver 4-hydroxyphenylpyruvate dioxygenase Form 3 (4-hydroxyphenylpyruvate: oxygen oxidoreductase (hydroxylating, decarboxylating), EC 1.13.11.27) at 37 degrees in 0.2 M Tris/HCL, pH 7.5, by measuring the evolved carbon dioxide from the 1-14C-labeled substrate or the formation of homogentisate from the U-14C-la...

The design of novel biomaterials for applications in biological recognition, drug delivery, or diagnostics requires a judicious choice of preparation conditions and methods for the production of well-characterized 3-dimensional structures, preferably by benign processes. In this work, the polymerization of poly(ethylene glycol) (PEG) methacrylates was examined by kinetic gelation modeling and k...