Pure Sericin | Additive for Freezing Preservation Solution
Pure Sericin
Additive to be mixed with cryopreservation solution. Contributes to improved cell survival rate after thawing, free of DMSO.
Pure sericin is a high-purity protein derived from silk cocoons. It can be used as an additive (raw material) to be mixed into existing cryopreservation solutions, rather than being a cryopreservation solution itself. In cryopreservation tests using the vitrification method for human iPS cells, it has been confirmed to significantly improve cell survival rates after thawing as a natural, low-toxicity protective material that can replace chemical cryoprotectants such as DMSO (Patent No. 6333513). Since it does not contain components derived from mammals, it is a material that easily meets safety requirements in the field of regenerative medicine. Consistent production at our domestic factory allows for stable supply with minimal lot variation.
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basic information
【Properties】Powder 【Usage】Please use it by mixing it as an additive in existing cryopreservation solutions (it is not intended for use as a standalone preservation solution). 【Source】High-purity protein derived from silkworm cocoons 【Specifications】Available in grades suitable for various applications 【Packaging Unit】Starting from 100g (negotiable)
Price information
Negotiable
Delivery Time
※Delivery times may vary depending on quantity and grade, so please feel free to contact us.
Applications/Examples of results
Additive for DMSO-free cell preservation solution, cryopreservation of iPS cells and stem cells, enzyme cryopreservation auxiliary agent. There is a track record of commercialization with a reagent manufacturer.
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Company information
Seiren Co., Ltd. is a comprehensive textile manufacturer founded over 130 years ago and listed on the Prime Market of the Tokyo Stock Exchange. Guided by our vision of "changing the world through dreams," we have built on core competencies accumulated over more than a century in the textile industry to develop high-value-added businesses that extend far beyond textiles, spanning digital manufacturing and life sciences. ■ Inkjet Solutions Business "VISCOTECS" is our proprietary digital production system that integrates planning, manufacturing, and sales into a single seamless process. It enables high-mix, low-volume, short-lead-time, and inventory-free production, realizing an environmentally friendly business model that delivers "what you want, when you want it, in the quantity you need." Our inkjet technology has been applied across a wide range of businesses, including: - Integrated inkjet manufacturing solutions that address diverse customer challenges through our own end-to-end inkjet production capabilities - High-precision industrial inkjet systems for fine printing and precision coating applications - Customized mass-production inkjet systems tailored to customer needs in non-textile fields ■ Pure Sericin (Biomaterial) Business "Pure Sericin" is a high-purity, multifunctional protein derived from silk cocoons and manufactured using our proprietary purification technology. Originally developed through decades of expertise in silk processing, this innovative biomaterial has found new applications in the life sciences field, where it is used as: - A blocking agent for ELISA and other immunoassays, demonstrating a non-specific adsorption inhibition rate comparable to or exceeding that of BSA (bovine serum albumin), while contributing to animal-free formulations - An additive for the cryopreservation of iPS cells and stem cells, offering a DMSO-free, low-toxicity alternative that supports higher post-thaw cell viability - A booster for cell culture media, added at low concentrations to support cell proliferation and viability, with growth-promoting effects comparable to FBS (fetal bovine serum) in hybridoma cell culture Free from mammalian-derived components, Pure Sericin is manufactured and supplied with consistent quality at our own domestic facility, and has already been adopted by manufacturers of in vitro diagnostic reagents. With decades of experience in stable, large-scale production, we are committed to being a reliable long-term partner for the life sciences industry.
