Description

Poly‑L‑Lysine Hydrobromide / Hydrochloride / TFA Salt (PLL)White high‑purity powder, fully water‑soluble. L‑, D‑, DL‑forms available, MW 3,000–150,000 Da. TFA‑salt grades soluble in organic solvents (DMF, DMSO, NMP).
Synthesized by metal‑free NCA polymerization, narrow molecular weight distribution (PDI ≤1.15). Medical‑grade purity with endotoxin‑free options.
Strong cationic polyamino acid with abundant primary amine groups, showing excellent electrostatic binding, antibacterial activity and cell adhesion. Mainly used for crosslinking hyaluronic acid into long‑lasting injectable hydrogels, gene delivery vectors, antimicrobial medical coatings and tissue engineering scaffolds.
Applications: Injectable aesthetic hydrogels, skin barrier enhancement, gene transfection, cell culture coating, antibacterial biomaterials





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