People who regularly culture animal cells become so comfortable with standard techniques that novel approaches can seem contrived or even unnatural. However, the typical cycle of seeding cells at very low density in an excess of medium and harvesting (often quite aggressively) just before the point of medium exhaustion is quite an unphysiologic process. Popular culture systems often take cells that originally grew attached to a porous matrix at high densities, with little variability in nutrient and oxygen supply, and…
October 2009
A Practical Method for Resolving the Nucleation Problem in Lyophilization
Given the prevalence of lyophilization and the growing pipeline of sensitive biological drugs requiring stabilization, pharmaceutical development and manufacturing personnel need complete, reproducible control over the operation, scale-up, and transfer of their lyophilization processes. To address the nucleation problem, Praxair has developed a step-change technology that adds consistent control to the freezing step of lyophilization. This low-capital, plug-and-play option can be readily implemented on most existing freeze-dryers with minor equipment additions and controls integration. Adoption of the technology requires no…
Global Marketplace
Contamination Control Product: Endosafe-PTS glucan assay Applications: Biopharmaceutical process validation Features: The Endosafe-PTS glucan assay is a rapid test designed to help companies validate that products are free of (1,3)-β-D glucans. Glucans contaminate cell culture fluids, yeast protein production, air quality samples, and cellulose filter preparations. Glucans can cause false positive results in LAL assays. The Endosafe-PTS glucan cartridges have a sensitivity range of 10–1,000 pg/mL, yield results in
Promoting Discussion in the Biopharmaceutical Community
The Biopharmaceutical Emerging Best Practices Association (BEBPA) hit the scene in September 2008 with its inaugural Bioassay Conference in Berlin, Germany. A not-for-profit association, BEBPA (www.bebpa.org) is managed by the biopharmaceutical scientific community for the benefit of the biopharmaceutical scientific community: companies, regulators, and clinicians. BEBPA provides an open international forum for the presentation and discussion of scientific issues and problems encountered in the biopharmaceutical community. The purpose of this open discussion is to promote development of innovative approaches and…