Metal-phenolic network coatings for engineering bioactive interfaces

Recent Advances in the Development and Antimicrobial Applications of Metal–Phenolic Networks

“…Similar to mussel-inspired catechol groups, polyphenols are rich in phenolic hydroxyl groups and have good adhesion properties to various surfaces. [40,83] Therefore, polyphenols are enable to serve as an important mediator to introduce metal ions onto biomaterial surfaces to exert their biological effects. MPNs are always pH-responsive, the interaction between polyphenols and metal ions is easier to be dissociated at low pH, [37,84,85] conferring MPNs with pH-adjusted metal ion release ability beneficial for different application scenarios.…”

Metal-Catechol Network (MCN) Based Bioactive Surface Engineering of Iron Reinforced Hydroxyapatite Nanorods for Bone Tissue Engineering

“…EDS-based elemental data and elemental mapping results indicated that nitrogen (N) and carbon (C) content significantly increased in Fe-HAp/MCN compared to Fe-HAp nanorod mainly due to MCN surface modification (Figure 1C,D). MCN coating is a simple approach that did not require any special equipment, does not involve harmful chemical reagents, and generates repeatable nanocoating on the Fe-HAp surface [18]. Various investigations have demonstrated the pH-stimulated role of MCN and depicted that catechol-iron mono-network generated at pH less than 2, bisnetwork generated at a pH between 2 and 6, and tris-network can be generated at pH around 6-7.…”

Recent progress in tannic acid-driven antibacterial/antifouling surface coating strategies

“…MPNs hold several benefits over other coatings, including the flexibility to modify surface thickness, chemical composition, and stability. 124 The abundant hydroxyl and gallol groups make TA a potential polydentate ligand or inorganic cross-linker for metal ions' chelation and coordination. For instance, Ejima et al 49 established TA-Fe 3+ complexes-based films at ambient temperature.…”