1
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Shahid A, Aslam B, Muzammil S, Aslam N, Shahid M, Almatroudi A, Allemailem KS, Saqalein M, Nisar MA, Rasool MH, Khurshid M. The prospects of antimicrobial coated medical implants. J Appl Biomater Funct Mater 2021; 19:22808000211040304. [PMID: 34409896 DOI: 10.1177/22808000211040304] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The implants are increasingly being a part of modern medicine in various surgical procedures for functional or cosmetic purposes. The progressive use of implants is associated with increased infectious complications and prevention of such infections always remains precedence in the clinical settings. The preventive approaches include the systemic administration of antimicrobial agents before and after the surgical procedures as well as the local application of antibiotics. The relevant literature and existing clinical practices have highlighted the role of antimicrobial coating approaches in the prevention of implants associated infections, although the applications of these strategies are not yet standardized, and the clinical efficacy is not much clear. The adequate data from the randomized control trials is challenging because of the unavailability of a large sample size although it is compulsory in this context to assess the clinical efficacy of preemptive practices. This review compares the efficacy of preventive approaches and the prospects of antimicrobial-coated implants in preventing implant-related infections.
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Affiliation(s)
- Aqsa Shahid
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Bilal Aslam
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Saima Muzammil
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Nosheen Aslam
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
| | - Muhammad Shahid
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Ahmad Almatroudi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Khaled S Allemailem
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Muhammad Saqalein
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Muhammad Atif Nisar
- Department of Microbiology, Government College University, Faisalabad, Pakistan.,College of Science and Engineering, Flinders University, Bedford Park, SA, Australia
| | | | - Mohsin Khurshid
- Department of Microbiology, Government College University, Faisalabad, Pakistan
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2
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Dong Y, Zhao S, Wang C, Liu W, Zhang Y, Deng L, Zhang J, Huang P, Wang W, Dong A. Combating drug-resistant bacterial infection using biodegradable nanoparticles assembled from comb-like polycarbonates grafted with amphiphilic polyquaternium. J Mater Chem B 2021; 9:357-365. [PMID: 33245311 DOI: 10.1039/d0tb02233k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Bacterial infection is a serious clinical threat. The misuse of antibiotics has already resulted in the emergence of antibiotic-resistant strains of pathogenic bacteria. Efficient membrane-destructive antibacterial agents are considered as an alternative, promising solution against bacterial infection. Herein, we prepared a new type of comb-like cationic, polyethylene glycol (PEG) block polycarbonates with polyquaternium arms (G-CgQAs). The amphiphilic G-CgQAs could self-assemble into about 60 nm sized nanoparticles (NPs) with positive charges (20~30 mV). G-CgQA-3 NPs with an appropriate hydrophobic-hydrophilic balance in the polyquaternium arms showed antibacterial activity against Gram-negative, Gram-positive, and drug-resistant strains at low concentrations (MIC 64-128 μg mL-1) and low hemolysis (HC50 > 2000 μg mL-1). In vivo anti-infection tests indicated G-CgQA-3 NPs could highly inhibit the growth of vancomycin-resistant bacteria by spraying on wounds. Collectively, G-CgQA NPs hold great promise for the prevention of infection, serving as new antibacterial agents. This study also highlights the significance of a hydrophobic block in positive polyquaternium arms to facilitate the antibacterial activity of cationic, quaternized polymers. The design of comb-like amphiphilic cationic polycarbonates provides a new method for manufacturing antibacterial nano-agents.
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Affiliation(s)
- Yanliang Dong
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Shuyue Zhao
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Changrong Wang
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Wenshuai Liu
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Yumin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Liandong Deng
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jianhua Zhang
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Anjie Dong
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. and Tianjin Key Laboratory of Biomaterial Research Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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3
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Alam SS, Seo Y, Lapitsky Y. Highly Sustained Release of Bactericides from Complex Coacervates. ACS APPLIED BIO MATERIALS 2020; 3:8427-8437. [DOI: 10.1021/acsabm.0c00763] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sabrina S. Alam
- Department of Chemical Engineering, University of Toledo, Toledo, Ohio 43606, United States
| | - Youngwoo Seo
- Department of Chemical Engineering, University of Toledo, Toledo, Ohio 43606, United States
- Department of Civil and Environmental Engineering, University of Toledo, Toledo, Ohio 43606, United States
| | - Yakov Lapitsky
- Department of Chemical Engineering, University of Toledo, Toledo, Ohio 43606, United States
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4
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Rusu LC, Ardelean LC, Jitariu AA, Miu CA, Streian CG. An Insight into the Structural Diversity and Clinical Applicability of Polyurethanes in Biomedicine. Polymers (Basel) 2020; 12:polym12051197. [PMID: 32456335 PMCID: PMC7285236 DOI: 10.3390/polym12051197] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/13/2020] [Accepted: 05/22/2020] [Indexed: 01/16/2023] Open
Abstract
Due to their mechanical properties, ranging from flexible to hard materials, polyurethanes (PUs) have been widely used in many industrial and biomedical applications. PUs’ characteristics, along with their biocompatibility, make them successful biomaterials for short and medium-duration applications. The morphology of PUs includes two structural phases: hard and soft segments. Their high mechanical resistance featuresare determined by the hard segment, while the elastomeric behaviour is established by the soft segment. The most important biomedical applications of PUs include antibacterial surfaces and catheters, blood oxygenators, dialysis devices, stents, cardiac valves, vascular prostheses, bioadhesives/surgical dressings/pressure-sensitive adhesives, drug delivery systems, tissue engineering scaffolds and electrospinning, nerve generation, pacemaker lead insulation and coatings for breast implants. The diversity of polyurethane properties, due to the ease of bulk and surface modification, plays a vital role in their applications.
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Affiliation(s)
- Laura-Cristina Rusu
- Department of Oral Pathology, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Lavinia Cosmina Ardelean
- Department of Technology of Materials and Devices in Dental Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania
- Correspondence:
| | - Adriana-Andreea Jitariu
- Department of Microscopic Morphology/Histology and Angiogenesis Research Center Timisoara, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Catalin Adrian Miu
- 3rd Department of Orthopaedics-Traumatology, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Caius Glad Streian
- Department of Cardiac Surgery, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
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5
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Xu Y, Wang J, Hao Z, Wang S, Liang C. Biodegradable ciprofloxacin-incorporated waterborne polyurethane polymers prevent bacterial biofilm formation in vitro. Exp Ther Med 2018; 17:1831-1836. [PMID: 30783456 DOI: 10.3892/etm.2018.7113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/09/2018] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to explore whether ciprofloxacin-incorporated waterborne polyurethane (WBPU) polymers have the capacity to inhibit bacterial biofilm formation in vitro. WBPU polymers were incorporated with ciprofloxacin and were cultured with Escherichia coli (E. coli) or Staphylococcus aureus (S. aureus) in media for 2, 4 or 7 days. In another experiment, the WBPU membranes were cultured with Proteus mirabilis (P. mirabilis) in artificial urine for 2, 4 or 7 days. Colony counting, scanning electron microscopy and fluorescence confocal microscopy were utilized to examine bacterial biofilms on the surfaces of membranes. The membranes were further co-cultured with P. mirabilis in a simple model of an artificial catheterized bladder in order to evaluate their ability to control encrustation. The WBPU films with ciprofloxacin effectively inhibited bacterial biofilm formation in the culture medium and in artificial urine. In addition, in artificial urine, the films with ciprofloxacin reduced catheter obstruction. In conclusion, ciprofloxacin-incorporated WBPU polymers are able to effectively inhibit bacterial biofilm formation in vitro.
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Affiliation(s)
- Yuchen Xu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Jianzhong Wang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Zongyao Hao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Sai Wang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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6
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Shin EJ, Choi SM. Advances in Waterborne Polyurethane-Based Biomaterials for Biomedical Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:251-283. [PMID: 30357693 DOI: 10.1007/978-981-13-0947-2_14] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Polyurethane (PU) is one of the most popular synthetic elastomers and widely employed in biomedical fields owing to the excellent biocompatibility and hemocompatibility known today. In addition, PU is simply prepared and its mechanical properties such as durability, elasticity, elastomer-like character, fatigue resistance, compliance or tolerance in the body during the healing, can be mediated by modifying the chemical structure. Furthermore, modification of bulk and surface by incorporating biomolecules such as anticoagulant s or biorecognizable groups, or hydrophilic/hydrophobic balance is possible through altering chemical groups for PU structure. Such modifications have been designed to improve the acceptance of implant. For these reason, conventional solventborne (solvent-based) PUs have established the standard for high performance systems, and extensively used in medical devices such as dressings, tubing, antibacterial membrane , catheters to total artificial heart and blood contacting materials, etc. However, waterborne polyurethane (WPU) has been developed to improve the process of dissolving PU materials using toxic organic solvents, in which water is used as a dispersing solvent. The prepared WPU materials have many advantages, briefly (1) zero or very low levels of organic solvents, namely environmental-friendly (2) non-toxic, due to absence of isocyanate residues, and (3) good applicability caused by extensive structure/property diversity as well as an environment-friendly fabrication method resulting in increasing applicability. Therefore, WPUs are being in the spotlight as biomaterials used for biomedical applications . The purpose of this review is to introduce an environmental- friendly synthesis of WPU and consider the manufacturing process and application of WPU and/or WPU based nanocomposites as the viewpoint of biomaterials.
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Affiliation(s)
- Eun Joo Shin
- Department of Organic Materials and Polymer Engineering, Dong-A University, Busan, South Korea
| | - Soon Mo Choi
- Regional Research Institute for Fiber & Fashion Materials, Yeungnam University, Gyeongsan, South Korea.
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7
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Francolini I, Vuotto C, Piozzi A, Donelli G. Antifouling and antimicrobial biomaterials: an overview. APMIS 2017; 125:392-417. [PMID: 28407425 DOI: 10.1111/apm.12675] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 01/14/2017] [Indexed: 12/12/2022]
Abstract
The use of implantable medical devices is a common and indispensable part of medical care for both diagnostic and therapeutic purposes. However, as side effect, the implant of medical devices quite often leads to the occurrence of difficult-to-treat infections, as a consequence of the colonization of their abiotic surfaces by biofilm-growing microorganisms increasingly resistant to antimicrobial therapies. A promising strategy to combat device-related infections is based on anti-infective biomaterials that either repel microbes, so they cannot attach to the device surfaces, or kill them in the surrounding areas. In general, such biomaterials are characterized by antifouling coatings, exhibiting low adhesion or even repellent properties towards microorganisms, or antimicrobial coatings, able to kill microbes approaching the surface. In this light, the present overview will address the development in the last two decades of antifouling and antimicrobial biomaterials designed to potentially limit the initial stages of microbial adhesion, as well as the microbial growth and biofilm formation on medical device surfaces.
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Affiliation(s)
| | - Claudia Vuotto
- Microbial Biofilm Laboratory, IRCCS Fondazione Santa Lucia, Rome
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8
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Abstract
Nanotechnology has gained an increased interest in several different areas of biotechnology including the drug delivery via nanofibers. Self-assembly, phase separation and electrospinning can all be used to successfully generate nanofibers with sizes well within the range of those of the fibers present in the native extracellular matrix (50-500 nm). In this article, the authors introduced the most popular applications of nanofibers related to the delivery of antimicrobial agents for infectious diseases. To date, only a few in-vivo studies are available at present to demonstrate its clinical potential; most of the studies are of exploratory nature and rely mostly on in-vitro experiments. Therefore, further advancement in the production and clinical performance of drug-loaded nanofibrous matrices seems necessary.
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Affiliation(s)
- Dave Wei-Chih Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Shih-Jung Liu
- Department of Mechanical Engineering, Chang Gung University, Tao-Yuan, Taiwan
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9
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Xu Q, Yang C, Hedrick JL, Yang YY. Antimicrobial silica particles synthesized via ring-opening grafting of cationic amphiphilic cyclic carbonates: effects of hydrophobicity and structure. Polym Chem 2016. [DOI: 10.1039/c6py00194g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this study, cationic amphiphilic cyclic carbonates with varying hydrophobicity and structure were synthesized and grafted onto silica particles to impart antimicrobial properties.
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Affiliation(s)
- Qingxing Xu
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
| | - Chuan Yang
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
| | | | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
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10
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Abdullahi UF, Igwenagu E, Mu’azu A, Aliyu S, Umar MI. Intrigues of biofilm: A perspective in veterinary medicine. Vet World 2016; 9:12-8. [PMID: 27051178 PMCID: PMC4819343 DOI: 10.14202/vetworld.2016.12-18] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 11/19/2015] [Accepted: 11/29/2015] [Indexed: 12/14/2022] Open
Abstract
Biofilm has a tremendous impact in the field of veterinary medicine, especially the livestock industry, leading to a serious economic loss. Over the years, little attention has been given to biofilm in animals with most of the research geared toward human biofilm diseases. The greatest challenge posed by biofilm is in its incredible ability to resist most of the currently existing antibiotics. This mystery can best be demystified through understanding the mechanism of the quorum sensing which regulate the pathophysiology of biofilm. Ability of biofilm formation in a variety of inanimate surfaces such as animal food contact surfaces is responsible for a host of biofilm diseases affecting animals and humans. In this review, we highlighted some of the challenges of biofilm in livestock and food industries. Also highlighted are; mechanisms of biofilm development, best diagnostic approach and possible novel therapeutic measures needed to combat the menace of biofilm in veterinary medicine.
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Affiliation(s)
- Umar Faruk Abdullahi
- Department of Postgraduate, Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu, Malaysia
| | - Ephraim Igwenagu
- Department of Veterinary Pathology, University of Maiduguri, Maiduguri, Nigeria
| | - Anas Mu’azu
- Department of Microbiology, Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu, Malaysia
| | - Sani Aliyu
- Department of Microbiology, Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu, Malaysia
| | - Maryam Ibrahim Umar
- Department of Postgraduate, Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu, Malaysia
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11
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Antimicrobial and antioxidant amphiphilic random copolymers to address medical device-centered infections. Acta Biomater 2015; 22:131-40. [PMID: 25917843 DOI: 10.1016/j.actbio.2015.04.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 04/01/2015] [Accepted: 04/19/2015] [Indexed: 12/25/2022]
Abstract
Microbial biofilms are known to support a number of human infections, including those related to medical devices. This work is focused on the development of novel dual-function amphiphilic random copolymers to be employed as coatings for medical devices. Particularly, copolymers were obtained by polymerization of an antimicrobial cationic monomer (bearing tertiary amine) and an antioxidant and antimicrobial hydrophobic monomer (containing hydroxytyrosol, HTy). To obtain copolymers with various amphiphilic balance, different molar ratios of the two monomers were used. (1)H NMR and DSC analyses evidenced that HTy aromatic rings are able to interact with each other leading to a supra-macromolecular re-arrangement and decrease the copolymer size in water. All copolymers showed good antioxidant activity and Fe(2+) chelating ability. Cytotoxicity and hemolytic tests evidenced that the amphiphilic balance, cationic charge density and polymer size in solution are key determinants for polymer biocompatibility. As for the antimicrobial properties, the lowest minimal inhibitory concentration (MIC = 40 μg/mL) against Staphylococcus epidermidis was shown by the water-soluble copolymer having the highest HTy molar content (0.3). This copolymer layered onto catheter surfaces was also able to prevent staphylococcal adhesion. This approach permits not only prevention of biofilm infections but also reduction of the risk of emergence of drug-resistant bacteria. Indeed, the combination of two active compounds in the same polymer can provide a synergistic action against biofilms and suppress reactive species oxygen (ROS), known to promote the occurrence of antibiotic resistance.
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12
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Synthesis and antibacterial characterization of waterborne polyurethanes with gemini quaternary ammonium salt. Sci Bull (Beijing) 2015. [DOI: 10.1007/s11434-015-0811-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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13
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He W, Zhang Y, Luo F, Li J, Wang K, Tan H, Fu Q. A novel non-releasing antibacterial poly(styrene-acrylate)/waterborne polyurethane composite containing gemini quaternary ammonium salt. RSC Adv 2015. [DOI: 10.1039/c5ra16714k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel non-releasing antibacterial poly(styrene-acrylate)/waterborne polyurethane composites containing gemini quaternary ammonium salt were designed and preparedviaa facile blending strategy.
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Affiliation(s)
- Wei He
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Yi Zhang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Feng Luo
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Jiehua Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ke Wang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Hong Tan
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Qiang Fu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
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14
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Shunmugaperumal T, Kaur V, Thenrajan RS. Lipid- and Polymer-Based Drug Delivery Carriers for Eradicating Microbial Biofilms Causing Medical Device-Related Infections. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 831:147-89. [DOI: 10.1007/978-3-319-09782-4_10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Xu Q, Sardon H, Chan JMW, Hedrick JL, Yang YY. Polyurethane-coated silica particles with broad-spectrum antibacterial properties. Polym Chem 2015. [DOI: 10.1039/c4py01455c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antibacterial polyurethane-coated silica particles were synthesized using a “grafting to” approach via surface-to-end-group and surface-to-backbone strategies.
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Affiliation(s)
- Qingxing Xu
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
| | - Haritz Sardon
- IBM Almaden Research Center
- San Jose
- USA
- POLYMAT
- University of the Basque Country UPV/EHU Joxe Mari Korta Center
| | | | | | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology
- Singapore 138669
- Singapore
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16
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Yüksel E, Karakeçili A. Antibacterial activity on electrospun poly(lactide-co-glycolide) based membranes via Magainin II grafting. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:510-8. [PMID: 25491858 DOI: 10.1016/j.msec.2014.10.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 09/12/2014] [Accepted: 10/02/2014] [Indexed: 11/30/2022]
Abstract
An antimicrobial peptide (AMP), Magainin II (Mag II) was covalently immobilized on poly(lactide-co-glycolide) (PLGA) and PLGA/gelatin electrospun fibrous membranes. The surface immobilization was characterized by X-ray Photoelectron Spectroscopy (XPS). Scanning Electron Microscopy (SEM) and Atomic Force Microscopy studies showed that the surface morphology of the fibers at micron scale was not affected by the immobilization process. The antibacterial activity of the bound Mag II was tested against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Bacterial adhesion tests, SEM and confocal analyses revealed that the attachment and survival of bacteria were inhibited on Mag II functionalized membranes. AMP immobilization strategy was introduced as a new perspective for the modulation of antibacterial properties on PLGA based materials prepared by electrospinning.
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Affiliation(s)
- Emre Yüksel
- Ankara University, Faculty of Engineering, Chemical Engineering Department, 06100 Ankara, Turkey
| | - Ayşe Karakeçili
- Ankara University, Faculty of Engineering, Chemical Engineering Department, 06100 Ankara, Turkey.
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17
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Kim S, Nam JA, Lee S, In I, Park SY. Antimicrobial activity of water resistant surface coating from catechol conjugated polyquaternary amine on versatile substrates. J Appl Polym Sci 2014. [DOI: 10.1002/app.40708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sungmin Kim
- Department of Chemical and Biological Engineering; Korea National University of Transportation; Chungju-Si 380-702 Republic of Korea
| | - Jeong A. Nam
- Department of Chemical and Biological Engineering; Korea National University of Transportation; Chungju-Si 380-702 Republic of Korea
| | - Sangkug Lee
- IT Convergence Material R&D Group; Korea Institute of Industrial Technology, Hongcheon-ri, Ipjang-myeon, Seobuk-gu; Cheonan-si Chungcheongnam-do 35-3 Republic of Korea
| | - Insik In
- Department of Polymer Science and Engineering; Korea National University of Transportation; Chungju-Si 380-702 Republic of Korea
| | - Sung Young Park
- Department of Chemical and Biological Engineering; Korea National University of Transportation; Chungju-Si 380-702 Republic of Korea
- Department of IT Convergence; Korea National University of Transportation; Chungju-Si 380-702 Republic of Korea
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18
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Zhang L, Keogh S, Rickard CM. Reducing the risk of infection associated with vascular access devices through nanotechnology: a perspective. Int J Nanomedicine 2013; 8:4453-66. [PMID: 24293997 PMCID: PMC3839805 DOI: 10.2147/ijn.s50312] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Intravascular catheter-related infections are still a major problem in health care and are associated with significant morbidity, mortality, and additional cost. The formation of microbial biofilm on catheters makes these infections particularly complicated, as microbial cells that detach from the biofilm can lead to infection, and because these microorganisms are highly resistant to many antimicrobial agents; thus, catheter removal is often required to successfully treat infection. To reduce the risks of catheter-related infections, many strategies have been applied, such as improvements in aseptic insertion and post-insertion care practices, implantation techniques, and antibiotic coated or impregnated materials. However, despite significant advances in using these methods, it has not been possible to completely eradicate biofilm infections. Currently, nanotechnology approaches seem to be among the most promising for preventing biofilm formation and resultant catheter-related bloodstream infection (especially with multi-resistant bacterial strains). In this review, current knowledge about catheter technology and design, the mechanisms of catheter-related bloodstream infection, and the insertion and care practices performed by medical staff, are discussed, along with novel, achievable approaches to infection prevention, based on nanotechnology.
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Affiliation(s)
- Li Zhang
- Centre for Health Practice Innovation, Griffith Health Institute, Griffith University, QLD, Australia
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Kasimanickam RK, Ranjan A, Asokan GV, Kasimanickam VR, Kastelic JP. Prevention and treatment of biofilms by hybrid- and nanotechnologies. Int J Nanomedicine 2013; 8:2809-19. [PMID: 23946652 PMCID: PMC3739460 DOI: 10.2147/ijn.s44100] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Bacteria growing as adherent biofilms are difficult to treat and frequently develop resistance to antimicrobial agents. To counter biofilms, various approaches, including prevention of bacterial surface adherence, application of device applicators, and assimilation of antimicrobials in targeted drug delivery machinery, have been utilized. These methods are also combined to achieve synergistic bacterial killing. This review discusses various multimodal technologies, presents general concepts, and describes therapies relying on the principles of electrical energy, ultrasound, photodynamics, and targeted drug delivery for prevention and treatment of biofilms.
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Affiliation(s)
- Ramanathan K Kasimanickam
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA.
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Abstract
AbstractThis paper is focused on the preparation and physicochemical characterization of two poly(ester ether urethane)s with rifampicin in their matrix and different molar concentrations of urethane groups. The polyurethanes with rifampicin were processed as asymmetrical microporous membranes by a phase inversion method and characterized by attenuated total reflection — Fourier transform infrared (ATR-FTIR) spectroscopy and differential scanning calorimetry (DSC). The influence of the surface morphology in the release of drug compounds was analyzed by scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle, and water uptake. The release of rifampicin depends on the molar concentration of urethane groups and also on the surface morphology of the polyurethane membranes. The antibacterial activity was evaluated with S. Epidermidis RP 62 A and P. Aeruginosa ATCC 1544. Finally, the biocompatibility of the polyurethane membranes was studied with human dermal fibroblasts (HDF) to evaluate the potential biomedical applications.
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Francolini I, Crisante F, Martinelli A, D’Ilario L, Piozzi A. Synthesis of biomimetic segmented polyurethanes as antifouling biomaterials. Acta Biomater 2012; 8:549-58. [PMID: 22051237 DOI: 10.1016/j.actbio.2011.10.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/22/2011] [Accepted: 10/17/2011] [Indexed: 10/16/2022]
Abstract
Controlling the non-specific adsorption of proteins, cells and bacteria onto biomaterial surfaces is of crucial importance for the development of medical devices with specific levels of performance. Among the strategies pursued to control the interactions between material surfaces and biological tissues, the immobilization of non-fouling polymers on biomaterial surfaces as well as the synthesis of the so-called biomimetic polymers are considered promising approaches to elicit specific cellular responses. In this study, in order to obtain materials able to prevent infectious and thrombotic complications related to the use of blood-contacting medical devices, heparin-mimetic segmented polyurethanes were synthesized and fully characterized. Specifically, sulfate or sulfamate groups, known to be responsible for the biological activity of heparin, were introduced into the side chain of a carboxylated polyurethane. Due to the introduction of these groups, the obtained polymers possessed a higher hard/soft phase segregation (lower glass transition temperatures) and a greater hydrophilicity than the pristine polymer. In addition, the synthesized polymers were able to significantly delay the activated partial thromboplastin time, this increased hemocompatibility being related both to polymer hydrophilicity and to the presence of the -SO3H groups. This last feature was also responsible for the ability of these biomimetic polymers to prevent the adhesion of a strain of Staphylococcus epidermidis.
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Sousa C, Henriques M, Oliveira R. Mini-review: Antimicrobial central venous catheters--recent advances and strategies. BIOFOULING 2011; 27:609-20. [PMID: 21718230 DOI: 10.1080/08927014.2011.593261] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Central venous catheters (CVCs) nowadays constitute critical devices used in medical care, namely in intensive care units. However, CVCs also represent one of the indwelling medical devices with enhanced risk of nosocomial device-related infection. Catheter-related infections (CRIs) are a major cause of patient morbidity and mortality, often justifying premature catheter removal and an increase in costs and use of resources. Adhesion and subsequent biofilm formation on the surfaces of indwelling catheters is elemental to the onset of pathogenesis. Seeking the prevention of CVC colonisation and CRI, a variety of approaches have been studied, tested and, in some cases, already applied in clinical practice. This review looks at the current preventive strategies often used to decrease the risk of CRIs due to colonization and biofilm formation on catheter surfaces, as well as at the more recent approaches under investigation.
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Affiliation(s)
- Cláudia Sousa
- Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar 4710-057, Braga, Portugal
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24
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Preparation and characterization of poly(hydroxyethyl methacrylate-co -poly(ethyleneglycol-methacrylate)/hydroxypropyl-chitosan) hydrogel films: Adhesion of rat mesenchymal stem cells. Macromol Res 2011. [DOI: 10.1007/s13233-011-0412-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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25
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Han H, Wu J, Avery CW, Mizutani M, Jiang X, Kamigaito M, Chen Z, Xi C, Kuroda K. Immobilization of amphiphilic polycations by catechol functionality for antimicrobial coatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:4010-9. [PMID: 21391641 PMCID: PMC3071020 DOI: 10.1021/la1046904] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A new strategy for preparing antimicrobial surfaces by a simple dip-coating procedure is reported. Amphiphilic polycations with different mole ratios of monomers containing dodecyl quaternary ammonium, methoxyethyl, and catechol groups were synthesized by free-radical polymerization. The polymer coatings were prepared by immersing glass slides into a polymer solution and subsequent drying and heating. The quaternary ammonium side chains endow the coatings with potent antibacterial activity, the methoxyethyl side chains enable tuning the hydrophobic/hydrophilic balance, and the catachol groups promote immobilization of the polymers into films. The polymer-coated surfaces displayed bactericidal activity against Escherichia coli and Staphylococcus aureus in a dynamic contact assay and prevented the accumulation of viable E. coli, S. aureus, and Acinetobacter baumannii for up to 96 h. Atomic force microscopy (AFM) images of coating surfaces indicated that the surfaces exhibit virtually the same smoothness for all polymers except the most hydrophobic. The hydrophobic polymer without methoxyethyl side chains showed clear structuring into polymer domains, causing high surface roughness. Sum-frequency generation (SFG) vibrational spectroscopy characterization of the surface structures demonstrated that the dodecyl chains are predominantly localized at the surface-air interface of the coatings. SFG also showed that the phenyl groups of the catechols are oriented on the substrate surface. These results support our hypothesis that the adhesive or cross-linking functionality of catechol groups discourages polymer leaching, allowing the tuning of the amphiphilic balance by incorporating hydrophilic components into the polymer chains to gain potent biocidal activity.
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Affiliation(s)
- Hua Han
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, Japan
| | - Jianfeng Wu
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, 48109, Japan
| | - Christopher W. Avery
- Department of Chemistry, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, Japan
| | - Masato Mizutani
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan, Japan
| | - Xiaoming Jiang
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, Japan
| | - Masami Kamigaito
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan, Japan
| | - Zhan Chen
- Department of Chemistry, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, Japan
| | - Chuanwu Xi
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, 48109, Japan
| | - Kenichi Kuroda
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, Japan
- Department of Chemistry, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, Japan
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Martinelli A, D’Ilario L, Francolini I, Piozzi A. Water state effect on drug release from an antibiotic loaded polyurethane matrix containing albumin nanoparticles. Int J Pharm 2011; 407:197-206. [DOI: 10.1016/j.ijpharm.2011.01.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 01/11/2011] [Accepted: 01/16/2011] [Indexed: 11/29/2022]
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Polypropylene grafted with NIPAAm and APMA for creating hemocompatible surfaces that load/elute nalidixic acid. REACT FUNCT POLYM 2010. [DOI: 10.1016/j.reactfunctpolym.2010.07.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Aslan S, Loebick CZ, Kang S, Elimelech M, Pfefferle LD, Van Tassel PR. Antimicrobial biomaterials based on carbon nanotubes dispersed in poly(lactic-co-glycolic acid). NANOSCALE 2010; 2:1789-1794. [PMID: 20680202 DOI: 10.1039/c0nr00329h] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Biomaterials that inactivate microbes are needed to eliminate medical device infections. We investigate here the antimicrobial nature of single-walled carbon nanotubes (SWNTs) incorporated within the biomedical polymer poly(lactic-co-glycolic acid) (PLGA). We find Escherichia coli and Staphylococcus epidermidis viability and metabolic activity to be significantly diminished in the presence of SWNT-PLGA, and to correlate with SWNT length and concentration (<2% by weight). Up to 98% of bacteria die within one hour on SWNT-PLGA versus 15-20% on pure PLGA. Shorter SWNTs are more toxic, possibly due to increased density of open tube ends. This study demonstrates the potential usefulness of SWNT-PLGA as an antimicrobial biomaterial.
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Affiliation(s)
- Seyma Aslan
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA
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29
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Merchan M, Sedlarikova J, Vesel A, Sedlarik V, Pastorek M, Sáha P. Characterization of Antibacterial, Mechanical, and Structural Properties of Polyvinyl Chloride/Silver Nitrate Composites Prepared by Thermoplastic Compounding. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2010. [DOI: 10.1080/1023666x.2010.500534] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Francolini I, Donelli G. Prevention and control of biofilm-based medical-device-related infections. ACTA ACUST UNITED AC 2010; 59:227-38. [DOI: 10.1111/j.1574-695x.2010.00665.x] [Citation(s) in RCA: 322] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li B, Brown KV, Wenke JC, Guelcher SA. Sustained release of vancomycin from polyurethane scaffolds inhibits infection of bone wounds in a rat femoral segmental defect model. J Control Release 2010; 145:221-30. [PMID: 20382191 DOI: 10.1016/j.jconrel.2010.04.002] [Citation(s) in RCA: 149] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 03/25/2010] [Accepted: 04/02/2010] [Indexed: 02/02/2023]
Abstract
Infection is a common complication in open fractures that compromises the healing of bone and can result in loss of limb or life. Currently, the clinical standard of care for treating contaminated open fractures comprises a staged approach, wherein the wound is first treated with non-biodegradable antibiotic-laden poly(methyl methacrylate) (PMMA) beads to control the infection followed by bone grafting. Considering that tissue regeneration is associated with new blood vessel formation, which takes up to 6 weeks in segmental defects, a biodegradable bone graft with sustained release of an antibiotic is desired to prevent the implant from becoming infected, thus allowing the processes of both vascularization and new bone formation to occur unimpeded. In the present study, we utilized biodegradable porous polyurethane (PUR) scaffolds as the delivery vehicle for vancomycin. Hydrophobic vancomycin free base (V-FB) was obtained by precipitating the hydrophilic vancomycin hydrochloride (V-HCl) at pH 8. The decreased solubility of V-FB resulted in an extended vancomycin release profile in vitro, as evidenced by the fact that active vancomycin was released for up to 8 weeks at concentrations well above both the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC). Using PUR prepared from lysine triisocyanate (LTI) (PUR(LTI)), the extended in vitro release profile observed for V-FB translated to improved infection control in vivo compared to V-HCl in a contaminated critical-sized fat femoral segmental defect. The performance of PUR(LTI)/V-FB was comparable to PMMA/V-HCl beads in vivo. However, compared with PMMA, PUR is a biodegradable system which does not require the extra surgical removal step in clinical use. These results suggest that PUR scaffolds incorporating V-FB could be a potential clinical therapy for treatment of infected bone defects.
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Affiliation(s)
- Bing Li
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, United States
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32
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Singhatanadgit W. Biological Responses to New Advanced Surface Modifications of Endosseous Medical Implants. ACTA ACUST UNITED AC 2009. [DOI: 10.4137/btri.s3150] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Implantable medical devices are increasingly important in the practice of modern medicine. However, patients with severely poor bone quality and quantity require highest implant osseointegration for the long-term success. A number of newly-developed advanced surface modifications of medical implants have recently been introduced to the medical implant system. Understanding the mechanisms by which osteogenic cells respond to such materials is therefore of major importance in developing the most effective materials to promote functional osseointegration. Diverse studies using materials with a wide range of new surface modification techniques have demonstrated the pivotal role of surface treatments in cell adhesion, proliferation and lineage specific differentiation. These events underlie the tissue responses required for bone healing following implant placement, with the interaction between adsorbed proteins on the implant surface and surrounding cells eliciting body responses to the treated implant surface. This review illustrates tissue responses to the implant material following implant placement and highlights cellular responses to new advanced implant surface modifications. Such information is of utmost importance to further develop several new advanced surface modifications to be used in the new era medical implantable devices.
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Affiliation(s)
- Weerachai Singhatanadgit
- Faculty of Dentistry, Thammasat University, 99 Moo 18, Paholyothin Rd., Klong-Luang, Pathum-Thani, Thailand
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Cao Z, Sun Y. Chitosan-based rechargeable long-term antimicrobial and biofilm-controlling systems. J Biomed Mater Res A 2009; 89:960-7. [DOI: 10.1002/jbm.a.32040] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Crisante F, Francolini I, Bellusci M, Martinelli A, D’Ilario L, Piozzi A. Antibiotic delivery polyurethanes containing albumin and polyallylamine nanoparticles. Eur J Pharm Sci 2009; 36:555-64. [DOI: 10.1016/j.ejps.2008.12.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Revised: 10/10/2008] [Accepted: 12/10/2008] [Indexed: 11/16/2022]
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35
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Arıca MY, Tuğlu D, Başar MM, Kılıç D, Bayramoğlu G, Batislam E. Preparation and characterization of infection-resistant antibiotics-releasing hydrogels rods of poly[hydroxyethyl methacrylate-co-(poly(ethylene glycol)-methacrylate]: Biomedical application in a novel rabbit penile prosthesis model. J Biomed Mater Res B Appl Biomater 2008; 86:18-28. [DOI: 10.1002/jbm.b.30983] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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36
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Fournier D, Du Prez F. “Click” Chemistry as a Promising Tool for Side-Chain Functionalization of Polyurethanes. Macromolecules 2008. [DOI: 10.1021/ma800189z] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David Fournier
- Department of Organic Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
| | - Filip Du Prez
- Department of Organic Chemistry, Polymer Chemistry Research Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
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Chen L, Bromberg L, Hatton TA, Rutledge GC. Electrospun cellulose acetate fibers containing chlorhexidine as a bactericide. POLYMER 2008. [DOI: 10.1016/j.polymer.2008.01.003] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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