I. [Product Description]
    WSW(WSWGPYS)-PEG-FA is a polyethylene glycol-coupled compound modified based on a polypeptide sequence, which can serve as an organic intermediate for highly specific bioconjugation reactions. Its core value lies in providing an efficient catalyst platform for the functionalization of biomaterials through the precise liver-targeting polypeptide structure and the tunability of the PEG chain. Meanwhile, the folic acid group further expands the molecular recognition ability, making it suitable for the directional assembly of complex systems.

II. [Product Details]
    [Appearance] Depending on different molecular weights, it appears as a white/off-white solid or a viscous liquid.
    [Stability] Store refrigerated and avoid repeated freezing and thawing.
    [Solvent] Conventional organic solvents such as chloroform, dichloromethane, and DMSO.
    [Molecular Weight] (PEG): 2000, 3400, 5000. Other molecular weights can be customized.
    [Storage Conditions] Store in a sealed, dry condition at a low temperature below 4°C.
▪ Note: ▶ To ensure product stability, please open the package for use only after constant temperature drying!

III. [Application Fields]
    1. Construction and surface modification of targeted molecular probes (J. Mater. Chem. B, 2022)
    2. Functional grafting of biocompatible nanocarriers (ACS Appl. Bio Mater. 2023)
    3. Controllable assembly of protein-polymer composites (Biomacromolecules 2021)
    4. Directional modification of cell membrane biomimetic interfaces (Langmuir 2023)
    5. Construction of signal amplification systems for biosensors (Anal. Chem. 2022)

Remarks: The products sold by our company are only for scientific research and cannot be used in human experiments or human treatments.

Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates under an integrated business model of independent R & D-production-sales, providing professional research reagents for scientific experiments in universities. Compared with similar products on the market, our company's products have obvious price advantages. In addition, we also provide professional product customization services.

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Contact Information:
Landline: 023-62795528
Customer Service Hotline: 19112925095 丨 QQ: 3012135199
                                           18896157519 丨 QQ: 3354316092

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