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MTT assay of HaCaT cell proliferation treated with (1) control, (2) G (3) K4 peptide, (4) PLGA NP, (5) PLGA–GF NP, (6) PLGA–GF–K4 NP.
Note: Values are represented as mean ± SD, (n=3, *P<0.05).
Abbreviations: NP, nanoparticle; PLGA, poly (lactic-co-glycolic acid).
