Metal–Phenolic Networks for Chronic Wounds Therapy

Abstract

Danyang Wang,1,2 Jianfeng Xing,2 Ying Zhang,2 Ziyang Guo,2 Shujing Deng,2 Zelin Guan,2 Binyang He,2 Ruirui Ma,2 Xue Leng,2 Kai Dong,2 Yalin Dong1 1Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China; 2School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of ChinaCorrespondence: Kai Dong, School of Pharmacy, Xi’an Jiaotong University, 76 Yanta West Road, Xi’an, Shaanxi, 710061, People’s Republic of China, Tel/Fax [phone], Email [email protected] Yalin Dong, Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China, Te1 [phone], Fax [phone], Email [email protected]; [email protected]: Chronic wounds are recalcitrant complications of a variety of diseases, with pathologic features including bacterial infection, persistent inflammation, and proliferation of reactive oxygen species (ROS) levels in the wound microenvironment. Currently, the use of antimicrobial drugs, debridement, hyperbaric oxygen therapy, and other methods in clinical for chronic wound treatment is prone to problems such as bacterial resistance, wound expansion, and even exacerbation. In recent years, researchers have proposed many novel materials for the treatment of chronic wounds targeting the disease characteristics, among which metal–phenolic networks (MPNs) are supramolecular network structures that utilize multivalent metal ions and natural polyphenols complexed through ligand bonds. They have a flexible and versatile combination of structural forms and a variety of formations (nanoparticles, coatings, hydrogels, etc.) that can be constructed. Functionally, MPNs combine the chemocatalytic and bactericidal properties of metal ions as well as the anti-inflammatory and antioxidant properties of polyphenol compounds. Together with the excellent properties of rapid synthesis and negligible cytotoxicity, MPNs have attracted researchers’ great attention in biomedical fields such as anti-tumor, anti-bacterial, and anti-inflammatory. This paper will focus on the composition of MPNs, the mechanisms of MPNs for the treatment of chronic wounds, and the application of MPNs in novel chronic wound therapies.Keywords: metal–phenolic networks, chronic wounds, antimicrobial, antioxidant, reactive oxygen species scavenging, revascularization

Keywords

• metal–phenolic networks
• chronic wounds
• antimicrobial
• antioxidant
• reactive oxygen species scavenging
• revascularization