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Zhang X, Yang Z, Yang X, Zhang F, Pan Z. Sustainable Antibacterial Surgical Suture Based on Recycled Silk Resource by an Internal Combination of Inorganic Nanomaterials. ACS Appl Mater Interfaces 2023. [PMID: 37318121 DOI: 10.1021/acsami.3c05054] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The current antibacterial treatment methods of silk sutures can only be finished by surface modification, leading to problems of short antibacterial effects, easy slow-release consumption, prominent toxicity, and susceptibility to drug resistance. Speculatively, surgical sutures combining antibacterial material internally will possess a more promising efficacy. Hence, we extracted recycled regenerated silk fibroin (RRSF) from waste silk resources to make RRSF solutions. Internally combining with inorganic titanium dioxide (TiO2) nanoparticles, we fabricated antibacterial RRSF-based surgical sutures. The morphologies, mechanical and antibacterial properties, biocompatibility tests, and in vivo experiments were carried out. The results showed that the surgical sutures with 1.25 wt % TiO2 acquired 2.40 N knot strength (143 μm diameter) and achieved a sustainable antibacterial effect of 93.58%. Surprisingly, the sutures significantly reduced inflammatory reactions and promoted wound healing. Surgical sutures in this paper realize high-value recovery of waste silk fibers and provide a novel approach to preparing multifunctional sutures.
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Affiliation(s)
- Xin Zhang
- College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
| | - Zhenbei Yang
- College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
| | - Xin Yang
- College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
| | - Feng Zhang
- College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
- National Engineering Laboratory for Modern Silk, Suzhou 215123, China
| | - Zhijuan Pan
- College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
- National Engineering Laboratory for Modern Silk, Suzhou 215123, China
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Lou CW, Hung CY, Wei M, Li T, Shiu BC, Lin JH. Antibacterial Surgical Sutures Developed Using Electrostatic Yarn Wrapping Technology. J Funct Biomater 2023; 14:jfb14050248. [PMID: 37233358 DOI: 10.3390/jfb14050248] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/09/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
A significant amount of research has been conducted on applying functional materials as surgical sutures. Therefore, research on how to solve the shortcomings of surgical sutures through available materials has been given increasing attention. In this study, hydroxypropyl cellulose (HPC)/PVP/zinc acetate nanofibers were coated on absorbable collagen sutures using an electrostatic yarn winding technique. The metal disk of an electrostatic yarn spinning machine gathers nanofibers between two needles with positive and negative charges. By adjusting the positive and negative voltage, the liquid in the spinneret is stretched into fibers. The selected materials are toxicity free and have high biocompatibility. Test results indicate that the nanofiber membrane comprises evenly formed nanofibers despite the presence of zinc acetate. In addition, zinc acetate can effectively kill 99.9% of E. coli and S. aureus. Cell assay results indicate that HPC/PVP/Zn nanofiber membranes are not toxic; moreover, they improve cell adhesion, suggesting that the absorbable collagen surgical suture is profoundly wrapped in a nanofiber membrane that exerts antibacterial efficacy and reduces inflammation, thus providing a suitable environment for cell growth. The employment of electrostatic yarn wrapping technology is proven effective in providing surgical sutures with antibacterial efficacy and a more flexible range of functions.
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Affiliation(s)
- Ching-Wen Lou
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Yunlin 638, Taiwan
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City 413305, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City 404333, Taiwan
| | - Chun-Yu Hung
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Yunlin 638, Taiwan
- Department of Orthopaedic Surgery, Jen-Ai Hospital, Taichung City 412, Taiwan
| | - Mengdan Wei
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Tingting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, China
| | - Bing-Chiuan Shiu
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Jia-Horng Lin
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung City 407102, Taiwan
- School of Chinese Medicine, China Medical University, Taichung City 404333, Taiwan
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Wu M, Liu Y, Liu C, Cui Q, Zheng X, Fatehi P, Li B. Core-Shell Filament with Excellent Wound Healing Property Made of Cellulose Nanofibrils and Guar Gum via Interfacial Polyelectrolyte Complexation Spinning. Small 2023; 19:e2205867. [PMID: 36433832 DOI: 10.1002/smll.202205867] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Natural polymer-based sutures have attractive cytocompatibility and degradability in surgical operations. Herein, anionic cellulose nanofibrils (ACNF) and cationic guar gum (CGG) are employed to produce nontoxic CGG/ACNF composite filament with a unique core-shell structure via interfacial polyelectrolyte complexation (IPC) spinning. The comprehensive characterization and application performance of the resultant CGG/ACNF filament as a surgical suture are thoroughly investigated in comparison with silk and PGLA (90% glycolide and 10% l-lactide) sutures in vitro and in vivo, respectively. Results show that the CGG/ACNF filament with the typical core-shell structure and nervation pattern surface exhibits a high orientation index (0.74) and good mechanical properties. The tensile strength and knotting strength of CGG/ACNF suture prepared by twisting CGG/ACNF filaments increase by 69.5%, and CGG/ACNF suture has a similar friction coefficient to silk and PGLA sutures. Moreover, CGG/ACNF suture with antibiosis and cytocompatibility exhibits better growth promotion of cells than silk suture, similar to PGLA suture in vitro. In addition, the stitching experiment of mice with the CGG/ACNF suture further confirms better healing properties and less inflammation in vivo than silk and PGLA sutures do. Hence, the CGG/ACNF suture with a simple preparation method and excellent application properties is promising in surgical operations.
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Affiliation(s)
- Meiyan Wu
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
| | - Yinuo Liu
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Chao Liu
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Qiu Cui
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Xin Zheng
- Qingdao Hospital of Traditional Chinese Medicine (Municipal Hiser Hospital), Qingdao, 266033, China
| | - Pedram Fatehi
- Green Processes Research Centre and Biorefining Research Institute, Lakehead University, Thunder Bay, ON P7B5E1, Canada
| | - Bin Li
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
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Prado-Novoa M, Perez-Sanchez L, Estebanez B, Moreno-Vegas S, Perez-Blanca A. Influence of Loading Conditions on the Mechanical Performance of Multifilament Coreless UHMWPE Sutures Used in Orthopaedic Surgery. Materials (Basel) 2022; 15:ma15072573. [PMID: 35407907 PMCID: PMC9000354 DOI: 10.3390/ma15072573] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 02/05/2023]
Abstract
This work studies the influence of loading velocity and previous cyclic loading history on the stiffness and strength of a multifilament coreless ultra-high-molecular-weight polyethylene (UHMWPE) surgical suture. Thread samples (n = 8) were subjected to a load-to-failure test at 0.1, 0.5, 1, 5, and 10 mm/s without previous loading history and after 10 cycles of loading at 1-10 N, 1-30 N, and 1-50 N. The experimental data were fitted to mathematical models to compute the stress-strain relation and the strength of the suture. The bilinear model involving two stress-strain ratios for low- and high-strain intervals was the best fit. The ratio in the low-strain range rose with loading speed, showing mean increases of 5.9%, 6.5%, 7.9%, and 7.3% between successive loading speeds. Without a previous loading history, this ratio was less than half than that at high strain. However, 10 cycles of 1-30 N or 1-50 N significantly increased the stress-strain ratio at a low strain level by 135% and 228%, respectively. The effect persisted after 2 min but vanished after 24 h. No influence was found on the suture strength. In conclusion, the stiffness of the studied suture was influenced by the strain level, loading velocity, and recent cyclic loading history. Conversely, the suture strength was not affected.
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Affiliation(s)
- Maria Prado-Novoa
- Clinical Biomechanics Laboratory of Andalusia, University of Malaga, Calle Dr. Ortiz Ramos s/n, 29071 Malaga, Spain; (L.P.-S.); (B.E.); (S.M.-V.); (A.P.-B.)
- Correspondence:
| | - Laura Perez-Sanchez
- Clinical Biomechanics Laboratory of Andalusia, University of Malaga, Calle Dr. Ortiz Ramos s/n, 29071 Malaga, Spain; (L.P.-S.); (B.E.); (S.M.-V.); (A.P.-B.)
- Telecomunication Research Institute (TELMA), University of Malaga, E.T.S. Ingenieria de Telecomunicaciones, Bulevar Louis Pasteur 35, 29010 Malaga, Spain
| | - Belen Estebanez
- Clinical Biomechanics Laboratory of Andalusia, University of Malaga, Calle Dr. Ortiz Ramos s/n, 29071 Malaga, Spain; (L.P.-S.); (B.E.); (S.M.-V.); (A.P.-B.)
| | - Salvador Moreno-Vegas
- Clinical Biomechanics Laboratory of Andalusia, University of Malaga, Calle Dr. Ortiz Ramos s/n, 29071 Malaga, Spain; (L.P.-S.); (B.E.); (S.M.-V.); (A.P.-B.)
- Biomedical Research Institute of Malaga, Calle Dr. Miguel Díaz Recio, 28, 29010 Malaga, Spain
| | - Ana Perez-Blanca
- Clinical Biomechanics Laboratory of Andalusia, University of Malaga, Calle Dr. Ortiz Ramos s/n, 29071 Malaga, Spain; (L.P.-S.); (B.E.); (S.M.-V.); (A.P.-B.)
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Simeonova R, Danchev N. Assessment of surgical sutures POLYMED(®) by intracutaneous irritation test in rabbits. Interdiscip Toxicol 2013; 6:99-102. [PMID: 24179436 DOI: 10.2478/intox-2013-0017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 05/18/2013] [Accepted: 05/19/2013] [Indexed: 11/20/2022] Open
Abstract
The aim of the present study was to evaluate local irritant effects to rabbit skin following a single application of test samples of non-sterile polyamide non-absorbable surgical sutures POLYMED®. The polar and nonpolar extracts were prepared by using saline solution and olive oil, respectively, after sinking the materials tested (2.0 g) in 10 ml of the corresponding liquid. Incubation was carried out at the temperature of 37 °C for 72 h. The saline solution and pure olive oil, which had no contact with the materials tested, were used as negative control samples and were incubated under the same conditions as above. Assessments of the extracts from each material were conducted on 2 albino rabbits of the New Zealand breed. On the back of each animal, 5 intracutaneous injections of the extract tested and 5 injections of the control solution, each of 0.2 ml, were carried out. The degree of irritation was scored at 4, 24, 48, 72 hours after injection and no skin changes were found. The intracutaneous irritation index (III) was calculated and yielded 0.0. Hence it was concluded that under the experimental conditions the extracts of the material tested, i.e. non-sterile polyamide non-absorbable surgical sutures POLYMED®, were ‘non-irritant’ to the skin of rabbits when compared with the respective control groups. The experimental procedure was conducted according to ISO10993-10.
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