Multi-Arm PEG product is a unit smart cross-linker and is widely studied in the medical field and bioorganic material fields.  Multi-arm PEG derivatives can be cross-linked into hydrogels. PEG hydrogels have a variety of applications in medical devices and regenerative medicine, and are especially of interest for the controlled release of drugs, for 3D cell culture, and for wound sealing and healing.

Biopharma PEG supplies totally different multi-arm PEG linkers, as well as 2-arm peg, 4-arm peg or 8-arm PEG with MW 2k, MW 5k, MW 10k, MW 20k and MW 40k, in 1g, 5g or greater packing sizes. The whole relative molecular mass of the multi-arm PEGylation product is the total molecular weight of all arms.