Author Archives: Kirsten Strahlendorf

Integrity of Single-Use Systems: Practical Applications and Deployment

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Single-use (SU) technology plays an important role in modern vaccine and biologics manufacturing. System integrity, managed by critical process controls, ensures sterility and is a prerequisite for successful leak-free processing. Nonintegral systems cause loss of product, quality, and time; increase costs through investigations; and lead to potential safety problems. The BioProcess Systems Alliance (BPSA) issued a white paper in 2017, Design, Control, and Monitoring of Single-Use Systems for Integrity Assurance (1), that describes in detail the strategies for design and…

September 30, 2021

Mixing in Small-Scale Single-Use Systems

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    Despite the advantages of presterile, single-use technologies, mixing is one of their most complex applications. Industry has been progressing toward using single-use bag technologies rather than traditional methods of stainless steel tanks and grades A/B processing because of the positive aspects they impart to end users, including a reduced potential for contaminants, cleaning, sterilization, and capital. These technologies offer simplicity and flexibility (1). However, using them for an operation such as mixing can add processing challenges. For example,…

November 1, 2010