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Xiong Y, Zhang Q, Li J, Zhang N, Cheng X, Dong Q, Bao H. Light-sensitive PEG hydrogel with antibacterial performance for pacemaker pocket infection prevention. Mater Today Bio 2024; 25:100987. [PMID: 38486799 PMCID: PMC10938169 DOI: 10.1016/j.mtbio.2024.100987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/18/2024] [Accepted: 01/29/2024] [Indexed: 03/17/2024] Open
Abstract
Prevention of cardiovascular implantable electronic devices (CIED) infection is crucial for successful outcomes. In this study, we report an adhesive and antibacterial hydrogel coating for CIED infection treatment, by immobilizing polyethylene glycol (PEG) and 2'-O-hydroxypropyl trimethyl ammonium chloride chitosan (HAC) on Ti surface. Initial alkali and APTES treatment caused the formation of -NH2 to enhance the adhesion of the hydrogel coating to Ti implants, followed by immobilizing a photo-cross-linkable PEG/2'-O-HTACCS hydrogel on Ti/OH/NH2 surface. Surface characterization of Ti/OH/NH2 sample and adhesion testing of hydrogel on Ti/OH/NH2 surface confirm successful immobilization of hydrogel onto the Ti/OH/NH2 surface. In vitro and in vivo antimicrobial results exhibited that the photo-cross-linkable PEG/HAC composite hydrogel has excellent antimicrobial capabilities against both Grampositive (S. aureus and S. epidermidis) and Gram-negative (P. aeruginosa and E. coli) bacteria. The outcome of this study demonstrates the photo-cross linked PEG/HAC coating hydrogels can be easily formed on the Ti implants, and has great potential in preventing CIED pocket infection.
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Affiliation(s)
- Yurong Xiong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, China
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang Jiangxi, China
- Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Qingyun Zhang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, China
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang Jiangxi, China
- Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Juan Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, China
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang Jiangxi, China
- Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Nan Zhang
- Jiangxi Province Key Laboratory of Laboratory Medicine, Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Xiaoshu Cheng
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, China
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang Jiangxi, China
- Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Quanbin Dong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, China
| | - Huihui Bao
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang Jiangxi, China
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang Jiangxi, China
- Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
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