Percentage of PEG substitution = y/x

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Product Description

Poly-L-Lysine graft PEG or PEG-grafted-PLL  (PLL-g-PEG, PEG-g-PLL) is is a random graft co-polymer with a poly(L-lysine) backbone and poly(ethylene glycol) side-chains.  For surface modification, the PLL backbone interacts electrostatically with the substrate, while the side-chains extend from the surface to form a densely packed polymeric brush. PLL-g-PEG can be used  to prepare nanoparticles for gene/drug delivery.

Repeating units in PLL  (X)     Molecular Weight of PLL

X=20                                                2,500 Da
X=50                                                6,500 Da
X=100                                               13 KDa
X=150                                               20 KDa
X=200                                               26 KDa



Additional information

Number of repeating units of PLL

X=20, X=50, X=100, X=150, X=200

Molecular weight of PEG

2000, 5000

Percentage of PEG substitution

10%, 20%, 30%

Package size


Appearance: White to off white powder or crystal.
Purity: >90% (or refer to the Certificate of Analysis)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition: Dry, dark and at 0 – 4°C for short term (days to weeks) or -20°C for long term (months to years).
Solubility: Soluble in water.