Chitosan and polyhexamethylene guanidine dual-functionalized cotton gauze as a versatile bandage for the management of chronic wounds. (15th April 2022)

• Record Type: Journal Article
• Authors: Yang, Chao; Liu, Guofang; Chen, Junpeng; Zeng, Bairui; Shen, Tianxi; Qiu, Dongchao; Huang, Chen; Li, Lin; Chen, Dongfan; Chen, Jiale; Mu, Zhixiang; Deng, Hui; Cai, Xiaojun
• Is Part Of: Carbohydrate polymers. Volume 282(2022)
• Publication Date: 2022-04-15
• Subjects: Cotton gauze -- Antibacterial -- Moist wound healing -- PHMG -- Chronic wounds -- Chitosan; Chitosan (PubChem CID: 71853) -- Acetic acid (PubChem CID: 176) -- Sodium periodate (PubChem CID: 23667635) -- Polyhexamethylene guanidine hydrochloride (PubChem CID: 14771682) -- Triethylamine (PubChem CID: 8471) -- Sodium cyanoborohydride (PubChem CID: 20587905); Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2022.119130
• Languages: English
• ISSNs: 0144-8617

Abstract

Abstract: Development of versatile medical dressing with good immediate and long-lasting antibacterial, hygroscopic and moisturizing abilities is of great significance for management of chronic wounds. Cotton gauze (CG) can protect wounds and promote scabbing, but can cause wound dehydration and loss of biologically active substances, thereby greatly delays wound healing. Herein, a bi-functional CG dressing (CPCG) was developed by chemically grafting polyhexamethylene guanidine (PHMG) and physically adsorbing chitosan (CS) onto the CG surface. Due to the powerful microbicidal activity of PHMG, CPCG exhibited excellent immediate and long-lasting antibacterial activity against gram-positive and gram-negative bacteria. Moreover, the abundant hydroxyl and amino groups in CS endowed CPCG with good biocompatibility, moisture absorption, moisturizing and cell scratch healing performances. Importantly, CPCG can be easily fabricated into a bandage to conveniently manage infected full-skin wounds. Together, this study suggests that CPCG is a versatile wound dressing, having enormous application potential for management chronic wounds. Graphical abstract: Unlabelled Image