Lipase from Candida rogusa was immobilized on MCM-41 mesoporous molecular sieves in a trapped aqueous-organic biphase system for the resolution of racemic naproxen methyl ester. It was interesting that the activity and enantioselectivity of the immobilized lipase were improved significantly relative to the free enzyme. The proportion of water (ml)/support (g) has a dramatic influence on the act...

Enzymatic mode of biodiesel production has recently gained a special attention among researchers because it eliminates the disadvantages of alkaline process such as end product recovery, waste water treatment, energy intensive and etc. Recently, considerable attention has paid in the direct use of intracellular lipase as a whole-cell biocatalyst (i.e immobilization of the enzyme secreting micro...

Alkaline prorcasex are of considcruhlc interest in view of their activity and stability at alkaline pll. This review describes the protcascs that can resist extreme alkaline environments produced by a wide range of ulk alophilic microorg anisms. Different isol.uion methods which enable the screening and selection of promising organisms 1'01' industrial production are discussed. The various nutr...

The present work describes the first example of a wearable salivary metabolite biosensor based on the integration of a printable enzymatic electrode on a mouthguard. The new mouthguard enzymatic biosensor, based on an immobilized lactate oxidase and a low potential detection of the peroxide product, exhibits high sensitivity, selectivity and stability using whole human saliva samples. Such non-...

Enzymes Immobilization onto different types of the substrate could be helpful in various applicationsof biomedical devices and biosensors. Enzyme activity and stability could be affected by support andmethod of immobilization. In this study, the silver metal foam was successfully synthesized by thesoft-shell method and then was coated with silica. Then, glucose oxidase (GOx) immobilized on nonc...

Manganese (?) complex with 2, 2? bipyridine, 1, 1? dioxide (bpdo) ligand was immobilized within nanoreactors of MCM-41. The immobilized complex was characterized by powder x-ray diffraction (XRD), nitrogen adsorption desorption, and FTIR. The pore volume, surface area and pore diameter of MCM-41 decreased after immobilization of Mn complex. Three bands observed at 1250, 1220 cm?1 and 757 cm?1 a...

It is often challenging to manage the battery supply when dealing with a fleet of mobile robots during long experiments. If one uses classical recharge stations, then agents are immobilized during the whole recharge process. In this study, we present a novel approach that employs a battery pack swapping station. Batteries are charged in a rotating barrel, and the robots dock only for the time o...

Optical Mapping is an established single-molecule, whole-genome analysis system, which has been used to gain a comprehensive understanding of genomic structure and to study structural variation of complex genomes. A critical component of Optical Mapping system is the image processing module, which extracts single molecule restriction maps from image datasets of immobilized, restriction digested...

A solid-phase radioimmunoassay was developed for measuring the concentration of antispermatozoa antibodies in the sera of sterile patients. Whole human spermatozoa fixed in methanol and immobilized on plastic microtiter plates were used as antigens, and the spermatozoa-bound antibodies were quantitated with the aid of [125I]protein-A. The assay is specific, simple to perform and up to 1000 test...