Ventricles made from segmented polyurethane membranes and used in the fabrication of a totally implantable artificial heart are known to undergo biomaterial-associated calcification. As there is no effective method currently available to prevent such biomaterials from calcifying, a practical solutio
A hidden cost for use of disposables in biologics manufacturing
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 64 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0006-3592
No coin nor oath required. For personal study only.
β¦ Synopsis
& Enzymes Working at the Backbone of Organic Chemistry ''The efficient formation of carbon-carbon bonds forms the backbone of synthetic organic chemistry '' says Barry Trost (Chem Rev 2001, 2067-2096). And biocatalysis nowadays offers some convenient and selective tools for these ''backbone'' transformations. Apart from, for example, aldolases, that have been known for a long time to catalyze enantio-selective C-C bond formations, thiamin diphosphate-dependent enzymes-like pyruvate decarboxylase or benzoylformate decarboxylase-are used for this purpose. This class of enzymes is especially appealing because aromatic and aliphatic aldehydes can be used as substrates, which are more readily available than activated sugars necessary for aldolases. In this work four groups joined forces to apply C-C bond formation catalyzed by thiamin diphosphate-dependent benzaldehyde lyase (BAL) on preparative scale in a continuously operated enzyme membrane reactor. The authors took a truly interdisciplinary approach combining enzymology, bioorganic chemistry, and reaction engineering to obtain different chiral products on gram scale.
π SIMILAR VOLUMES
Oxygen supply is one of the major problems in the production of useful proteins by cultured animal cells and therefore it is of importance to devise a system by which a high productivity of human therapeutic recombinant proteins can be maintained or enhanced under low oxygen concentrations. A number
Use of a Titanium Thienyl Anion and a Simple Procedure for Introducing a Thiol Group into Thiophene in the Development of a Manufacturing Route to the 5-Lipoxygenase Inhibitor ZD4407. -The synthesis of the title compound (IX) is achieved via a convenient method to the thiophene (III) by Ti-mediated