Corrigendum to “Polydopamine/poly(sulfobetaine methacrylate) Co-deposition coatings triggered by CuSO4/H2O2 on implants for improved surface hemocompatibility and antibacterial activity” [ Bioactive materials 6 (2021) 2546–2556]

Graphical abstract

Highlights

• •A novel PDA (Cu)/PSBMA coating was prepared onto PU triggered by CuSO₄/H₂O₂.
• •The presence of PSBMA and Cu²⁺ endows PU with both antibacterial and antifouling properties.
• •The PU/PDA (Cu)/PSBMA exhibits excellent performance in vivo mouse infections model.
• •>The multifunctional coating shows great application potential in blood-contacting materials.

The authors regret to inform that Fig. 3f is incorrect in the original article. A part of images of platelet adhesion on the PU and PU/PDA seemed to be duplicated with that on PU/PDA (Cu)/PSBMA surface. The authors had checked the original images and found the images were mistakenly taken from the same sample of PU/PDA (Cu)/PSBMA with continuous imaging. This correction does not change any description, results or conclusions of the original paper.

The authors apologize for any confusion this may have caused. The corrected versions are shown below.

Fig. 3.

Relative protein adsorption (a) Fg and (b) BSA on the surface of PU, PU/PDA, PU/PDA/PSBMA, PU/PDA(Cu) and PU/PDA (Cu)/PSBMA. (c) Fluorescence microscopy images of FL-BSA adsorption on the surface of PU, PU/PDA, PU/PDA/PSBMA, PU/PDA (Cu) and PU/PDA(Cu)/PSBMA. Scale bar: 20 μm. (d) Images of hemolysis analysis of positive control (I), PU (II), PU/PDA (III), PU/PDA/PSBMA (IV), PU/PDA(Cu) (V), PU/PDA(Cu)/PSBMA (VI) and negative control (VII). (e) Hemolysis rate of PU, PU/PDA, PU/PDA/PSBMA, PU/PDA(Cu) and PU/PDA (Cu)/PSBMA. (f) Platelet adhesion on the PU, PU/PDA, PU/PDA/PSBMA, PU/PDA (Cu) and PU/PDA(Cu)/PSBMA surfaces observed with SEM. Scale bar: 20 μm.

Declaration of competing interest

The authors claim no conflicts of interest.