Thomson Multiport Optimum Growth® flasks are advanced closed-system cell culture vessels engineered for mammalian and insect cell culture workflows requiring aseptic feeding, sampling, and scale-up. Designed for bioprocess development, upstream process optimization, and seed train expansion, these multiport shake flasks enable contamination-controlled operations while minimizing manual handling and reducing reliance on intermediate vessels. Their modular, scalable design supports efficient culture transfer from early-stage development through larger-volume production processes.

Utility

Multiport Optimum Growth® flasks support closed-system bioprocessing applications including inoculation, media addition, sampling, feeding, and aseptic transfer without repeatedly opening culture vessels. This design helps preserve sterility, improve workflow efficiency, and simplify scale-up for suspension cell culture and protein expression workflows.

Key Features

• Closed-system processing: Integrated feed and transfer ports support aseptic media addition, inoculation, sampling, and culture transfer while reducing contamination risk.
• Integrated sampling capability: Dedicated sample ports enable viable cell sampling directly in the shaker or on the benchtop without removing caps.
• Broad scalability: Available from 125 mL to 7 L formats, enabling streamlined scale-up across development stages.
• Optimized gas exchange: 0.2 μm PTFE vented caps provide sterility while supporting aeration requirements for high-density cultures.
• Advanced transfer options: Larger formats incorporate bi-directional transfer ports, Luer lock connectivity, and optional gravity-fed transfer features for process flexibility.