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Wu Y, Fu W, Liu L, Jiang Y, Liu N, Fang M, Ye H, Li J, Chu Z, Qian H, Shao M. APTES-mediated Cu 2(OH) 3(NO 3) nanomaterials on the surface of silicone catheters for abscess. Colloids Surf B Biointerfaces 2024; 234:113734. [PMID: 38181690 DOI: 10.1016/j.colsurfb.2023.113734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/19/2023] [Accepted: 12/26/2023] [Indexed: 01/07/2024]
Abstract
Metal-based nanomaterials have remarkable bactericidal effects; however, their toxicity cannot be disregarded. To address this concern, we developed a simple synthesis route for antibacterial catheters using metal-based nanomaterials to reduce toxicity while harnessing their excellent bactericidal properties. The grafting agent (3-aminopropyl)triethoxysilane (APTES) forms -NH2 groups on the catheter surface, onto which copper ions form a nanomaterial complex known as Cu2(OH)3(NO3) (defined as SA-Cu). The synthesized SA-Cu exhibited outstanding contact antibacterial effects, as observed through scanning electron microscopy (SEM), which revealed cell membrane crumbing and bacterial rupture on the catheter surface. Furthermore, SA-Cu exhibited excellent biosafety characteristics, as evidenced by the cell counting kit-8 (CCK-8) assay, which showed no significant cytotoxicity. SA-Cu demonstrated sustained antimicrobial capacity, with in vivo experiments demonstrating over 99% bactericidal efficacy against methicillin-resistant Staphylococcus aureus (MRSA) for two weeks. The transcriptome sequencing results suggested that SA-Cu may exert its bactericidal effects by interfering with histidine and purine metabolism in MRSA. This study presents a straightforward method for synthesizing antimicrobial silicone catheters containing copper nanomaterials using copper ions.
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Affiliation(s)
- Yayun Wu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China
| | - Wanyue Fu
- School of Biomedical Engineering, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, Anhui 230032, PR China; Anhui Engineering Research Center for Medical Micro-Nano Devices, Hefei, Anhui 230012, PR China
| | - Lin Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China
| | - Yechun Jiang
- School of Biomedical Engineering, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, Anhui 230032, PR China; Anhui Engineering Research Center for Medical Micro-Nano Devices, Hefei, Anhui 230012, PR China
| | - Nian Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China
| | - Ming Fang
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China
| | - Haoming Ye
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China
| | - Jun Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China
| | - Zhaoyou Chu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China.
| | - Haisheng Qian
- School of Biomedical Engineering, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, Anhui 230032, PR China; Anhui Engineering Research Center for Medical Micro-Nano Devices, Hefei, Anhui 230012, PR China.
| | - Min Shao
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China.
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Akhter F, Jamali AR, Abbasi MN, Mallah MA, Rao AA, Wahocho SA, Anees-Ur-Rehman H, Chandio ZA. A comprehensive review of hydrophobic silica and composite aerogels: synthesis, properties and recent progress towards environmental remediation and biomedical applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:11226-11245. [PMID: 36513899 DOI: 10.1007/s11356-022-24689-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
The hydrophobicity of silica and composite aerogels has enabled them to acquire applications in a variety of fields. With remarkable structural, morphological, and physiochemical properties such as high porosity, surface area, chemical stability, and selectivity, these materials have gained much attention of researchers worldwide. Moreover, the hydrophobic conduct has enabled these aerogels to adsorb substances, i.e., organic pollutants, without collapsing the pore and network structure. Hence, considering such phenomenal properties and great adsorption potential, exploiting these materials for environmental and biomedical applications is trending. The present study explores the most recent advances in synthetic approaches and resulting properties of hydrophobic silica and composite aerogels. It presents the various precursors and co-precursors used for hydrophobization and gives a comparative analysis of drying methods. Moreover, as a major focus, the work presents the recent progress where these materials have shown promising results for various environmental remediation and biomedical applications. Finally, the bottlenecks in synthesis and applicability along with future prospects are given in conclusions.
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Affiliation(s)
- Faheem Akhter
- Department of Chemical Engineering, Quaid-E-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan.
| | - Abdul Rauf Jamali
- Materials Engineering Department, NED University of Engineering and Technology, Karachi, Pakistan
| | - Mahmood Nabi Abbasi
- Department of Chemical Engineering, Quaid-E-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan
| | - Mukhtiar Ali Mallah
- Department of Chemical Engineering, Quaid-E-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan
| | - Ahsan Atta Rao
- Department of Chemical Engineering, Quaid-E-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan
| | - Shafeeque Ahmed Wahocho
- Department of Chemical Engineering, Quaid-E-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan
| | - Hafiz Anees-Ur-Rehman
- Department of Chemical Engineering, Quaid-E-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan
| | - Zubair Ahmed Chandio
- Department of Chemical Engineering, Quaid-E-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan
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