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FreeStyle™ 293 Expression Medium is an animal origin–free, chemically defined, protein-free medium specifically developed to support the growth and transfection of 293-F cells in suspension without adaptation. The medium is complete and ready-to-use, with no supplementation required.
Features of Gibco™ FreeStyle™ 293 Expression Medium include:
Complete and ready-to-use format containing GlutaMAX™ supplement
Ability to support suspension growth and transfection of 293-F cells
Animal origin–free, protein-free and chemically defined formulation
Easy use with the FreeStyle™ 293 Expression systems
Scalability in spinner flasks and bioreactors
Complete and ready-to-use format containing GlutaMAX™ supplement
Gibco™ FreeStyle™ 293 Expression Medium is ready to use. It does not require the addition of serum, glutamine, or surfactants. Gibco™ FreeStyle™ 293 Expression Medium contains GlutaMAX™ supplement to minimize toxic ammonia build-up and improve cell viability and growth in an easy-to-use format.
Ability to support suspension growth and transfection of 293-F cells
Gibco™ 293-F, 293-H, and FreeStyle™ 293-F cells in suspension can be cultured directly into Gibco™ FreeStyle™ 293 Expression Medium without adaptation. Cells adapted to other commercially available serum-free media can be subcultured directly into Gibco™ FreeStyle™ 293 Expression Medium, usually without any further adaptation. Cells usually require adaptation from serum-containing formulations. Cells cultured in Gibco™ FreeStyle™ 293 Expression Medium can be transfected using lipid based transfection reagents, such as 293fectin™ reagent (Cat. No. 12347019) and Freestyle™ MAX reagent (16447500).
Animal origin–free, protein-free and chemically defined formulation
Gibco™ FreeStyle™ 293 Expression Medium is animal origin–free, protein-free and chemically defined, allowing for easier purification of your protein of interest. Gibco™ chemically defined media contain no proteins, hydrolysates, or components of unknown composition.
Easy use as part of the FreeStyle™ 293 Expression System and FreeStyle™ MAX Expression System for protein production
The FreeStyle™ 293 Expression System (Cat. No. K900001) is a complete, suspension cell culture system for generating large amounts of mammalian recombinant protein (see figure). The FreeStyle™ 293 Expression System combines Gibco™ FreeStyle™ 293 Expression Medium with 293fectin™ reagent, a cationic-lipid formulation designed to transfect suspension FreeStyle™ 293-F cells at high efficiency. The FreeStyle™ MAX Expression System (K900010) is a breakthrough technology for rapid and high-yield mammalian protein production. The FreeStyle™ MAX Expression System combines Gibco™ FreeStyle™ Media, FreeStyle™ MAX Reagent, and either FreeStyle™ CHO-S cells or FreeStyle™ 293-F cells.
Scalability in spinner flasks and bioreactors
Protein production using Gibco™ FreeStyle™ 293 Expression Medium can be scaled up in spinner flasks or bioreactors. The appropriate spinner or impeller speed and seeding density should be optimized for each system. Depending on the impeller design and speed, it may be necessary to supplement Gibco™ FreeStyle™ 293 Expression Medium with additional Pluronic™ F-68 to avoid sheer stress in the culture.
Universal bag packaging
Gibco™ universal bags offer flexible packaging that allows you to integrate a single-use, disposable large volume media container with a wide variety of automated cell culture instruments, disposable bioreactor systems, and sterile connection processes, minimizing the need for costly customization.
Product use
Customers using Gibco™ FreeStyle™ 293 Expression Medium in a manufacturing process, who have a submission with the FDA, may request a letter of authorization from us to reference our Type II Drug Master File (DMF).
cGMP manufacturing and quality system
Gibco™ FreeStyle™ 293 Expression Medium is manufactured at a cGMP-compliant facility located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.
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