6-Arm-PEG-FA (MW 10000) [6-Arm-PEG-Folate (MW 10000)] is a PEG derivative modified with folic acid. Polyethylene glycol enhances solubility and stability, reduces immunogenicity of peptides and proteins, and inhibits nonspecific binding of charged molecules to modified surfaces. Folic acid (-FA) targets high-affinity folate receptors, facilitating receptor-mediated drug delivery.
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