• Packaging Size :   1 g

• Formular :   (CH₂CH₂NH)n

• Molecular Weight :   25,000

• Soluble In :   hot water, cold water at low pH, methanol, ethanol

• Insoluble In :   benzene, ethyl ether, acetone

• Appearance :   white to yellow solid

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PEI 25K is a powerful, trusted, and cost-effective transient transfection reagent. In HEK293 and CHO expression systems, PEI offers consistently high gene expression on a wide scale (96 well plates up to 100 L bioreactors). Relative to most other options, using PEI to prepare transfection reagents in-house can offer as much as a 40% reduction in total transfection costs.

• Packaging Size :   5 g / 50 g

• Appearance :   Liquid

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Transporter 5™ is a premium ready-to-use transfection reagent prepared from our popular linear polyethylenimine MAX (PEI MAX 1 mg/mL). Transporter 5™ effectively transfects mammalian and insect cells, especially HEK-293, CHO, and Sf9.

We understand every transfection is a major investment, so we designed Transporter 5™ to be a reliable reagent in any process.

The quality of Transporter 5™ begins with our production process. Our special production method for PEI creates pure polymer with no batch-to-batch molecular weight variation. Transporter 5™ combines our consistent PEI with the highest quality USP/NF reagents in sterile, single-use equipment. While standard methods use 0.2µm sterile-filters, we use 0.1µm to completely eliminate mycoplasma risk.

Our Quality Control ensures Transporter 5™ is the most reliable reagent available. We developed our own scientifically-sound, quantitative performance assay for Transporter 5™. Most commercial performance assays are based on qualitative assays like SEAP and GFP. These assays cannot ensure the high titers most scientists require. The few reagents that are tested quantitatively typically use undisclosed HDAC inhibitors to improve results. Transporter 5™ is required to produce high titers without any supplementation. Even after initial quality control, we continuously monitor performance to ensure each batch is as good as when it was created.

• Packaging Size :   1 g

• Molecular Weight :   40,000 (~22,000 free base)

• Soluble In :   cold and room temperature water

• Insoluble In :   common organic solvents (ethanol, acetone, tetrahydrofuran)

• Appearance :   white to off-white free flowing solid

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PEI MAX 40K (also known as PEI 22K in free base) is a powerful, trusted, and cost-effective transient transfection reagent. In HEK293 and CHO expression systems, PEI offers consistently high gene expression on a wide scale (96 well plates up to 100 L bioreactors). Each year, more researchers and companies turn to Polysciences PEI to gain an edge in their critical work. Relative to most other options, using PEI to prepare transfection reagents in-house can offer as much as a 40% reduction in total transfection costs

PEI MAX 40K is easier to use and offers consistently higher titers than PEI 25K. PEI 25K transfection solutions typically take several hours to prepare, while PEI MAX 40K can be converted to a ready-to-use solution in under two hours. Additionally, PEI 25K contains 4-11% residual propionyl groups, which prevents the polymer backbone from strongly binding to DNA. PEI MAX 40K’s fully depropionylated structure means each batch performs consistently higher.

• Packaging Size :   1 L

• Appearance :   liquid

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MAXgene™ GMP Transfection Reagent is a cGMP transfection reagent for the development and manufacturing of viral vectors for cell-and gene-based therapies. It is an ideal reagent in HEK293 and CHO systems for the manufacture of AAVs, LVs and recombinant proteins. MAXgene™ GMP capitalizes on the efficiency and scalability of Polysciences’ PEI MAX while adding the validation process and regulatory components necessary for moving into clinical and commercial manufacturing. It is manufactured in accordance with cGMP under an ISO 13485 Quality Management System.
 

• Compatible with different virus production platforms

• High transfection efficiency

• Reliable and scalable performance

• cGMP & ISO 13485

• Validated manufacturing processes

• Fully synthetic, animal-origin-free

• Cost-effective

• Packaging Size :   1 g / 50 g / 100 g

• Appearance :   Powder (Solid)

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MAXgene™ GMP Transfection Reagent is a cGMP transfection reagent for the development and manufacturing of viral vectors for cell-and gene-based therapies. It is an ideal reagent in HEK293 and CHO systems for the manufacture of AAVs, LVs and recombinant proteins. MAXgene™ GMP capitalizes on the efficiency and scalability of Polysciences’ PEI MAX while adding the validation process and regulatory components necessary for moving into clinical and commercial manufacturing. It is manufactured in accordance with cGMP under an ISO 13485 Quality Management System.
 

• Compatible with different virus production platforms

• High transfection efficiency

• Reliable and scalable performance

• cGMP & ISO 13485

• Validated manufacturing processes

• Fully synthetic, animal-origin-free

• Cost-effective