Fig. 4From: Poly-3-hydroxybutyrate-co-3-hydroxyvalerate(PHBV)-Polyethylene glycol 20k(PEG20k) as a promising delivery system for PT2399 in the treatment of disc degenerationProperties of PP20 materials: A The chemical composition of PP20. B FT-IR spectra for the PP20. C The 1H NMR profiles of PP20. D, E Water contact angle of PHBV or PP20.Mean ± SD represents all the statistical data. (n = 3, ****p < 0.0001)Back to article page