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Xin X, Qi C, Xu L, Gao Q, Liu X. Green synthesis of silver nanoparticles and their antibacterial effects. FRONTIERS IN CHEMICAL ENGINEERING 2022. [DOI: 10.3389/fceng.2022.941240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Antibacterial resistance is by far one of the greatest challenges to global health. Many pharmaceutical or material strategies have been explored to overcome this dilemma. Of these, silver nanoparticles (AgNPs) are known to have a non-specific antibacterial mechanism that renders it difficult to engender silver-resistant bacteria, enabling them to be more powerful antibacterial agents than conventional antibiotics. AgNPs have shown promising antibacterial effects in both Gram-positive and Gram-negative bacteria. The aim of this review is to summarize the green synthesis of AgNPs as antibacterial agents, while other AgNPs-related insights (e.g., antibacterial mechanisms, potential toxicity, and medical applications) are also reviewed.
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Bhattacharjee B, Ghosh S, Patra D, Haldar J. Advancements in release-active antimicrobial biomaterials: A journey from release to relief. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1745. [PMID: 34374498 DOI: 10.1002/wnan.1745] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/13/2021] [Accepted: 07/08/2021] [Indexed: 12/13/2022]
Abstract
Escalating medical expenses due to infectious diseases are causing huge socioeconomic pressure on mankind globally. The emergence of antibiotic resistance has further aggravated this problem. Drug-resistant pathogens are also capable of forming thick biofilms on biotic and abiotic surfaces to thrive in a harsh environment. To address these clinical problems, various strategies including antibacterial agent delivering matrices and bactericidal coatings strategies have been developed. In this review, we have discussed various types of polymeric vehicles such as hydrogels, sponges/cryogels, microgels, nanogels, and meshes, which are commonly used to deliver antibiotics, metal nanoparticles, and biocides. Compositions of these polymeric matrices have been elaborately depicted by elucidating their chemical interactions and potential activity have been discussed. On the other hand, various implant/device-surface coating strategies which exploit the release-active mechanism of bacterial killing are discussed in elaboration. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Cardiovascular Disease Implantable Materials and Surgical Technologies > Nanomaterials and Implants Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease.
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Affiliation(s)
- Brinta Bhattacharjee
- Antimicrobial Research Laboratory, New Chemistry, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru, Karnataka, India
| | - Sreyan Ghosh
- Antimicrobial Research Laboratory, New Chemistry, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru, Karnataka, India
| | - Dipanjana Patra
- Antimicrobial Research Laboratory, New Chemistry, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru, Karnataka, India
| | - Jayanta Haldar
- Antimicrobial Research Laboratory, New Chemistry, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru, Karnataka, India.,School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru, Karnataka, India
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3
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Abstract
Biofilms are aggregates formed as a protective survival state by microorganisms to adapt to the environment and can be resistant to antimicrobial agents and host immune responses due to chemical or physical diffusion barriers, modified nutrient environments, suppression of the growth rate within biofilms, and the genetic adaptation of cells within biofilms. With the widespread use of medical devices, medical device-associated biofilms continue to pose a serious threat to human health, and these biofilms have become the most important source of nosocomial infections. However, traditional antimicrobial agents cannot completely eliminate medical device-associated biofilms. New strategies for the treatment of these biofilms and targeting biofilm infections are urgently required. Several novel approaches have been developed and identified as effective and promising treatments. In this review, we briefly summarize the challenges associated with the treatment of medical device-associated biofilm infections and highlight the latest promising approaches aimed at preventing or eradicating these biofilms.
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4
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Ricardo SIC, Anjos IIL, Monge N, Faustino CMC, Ribeiro IAC. A Glance at Antimicrobial Strategies to Prevent Catheter-Associated Medical Infections. ACS Infect Dis 2020; 6:3109-3130. [PMID: 33245664 DOI: 10.1021/acsinfecdis.0c00526] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Urinary and intravascular catheters are two of the most used invasive medical devices; however, microbial colonization of catheter surfaces is responsible for most healthcare-associated infections (HAIs). Several antimicrobial-coated catheters are available, but recurrent antibiotic therapy can decrease their potential activity against resistant bacterial strains. The aim of this Review is to question the actual effectiveness of currently used (coated) catheters and describe the progress and promise of alternative antimicrobial coatings. Different strategies have been reviewed with the common goal of preventing biofilm formation on catheters, including release-based approaches using antibiotics, antiseptics, nitric oxide, 5-fluorouracil, and silver as well as contact-killing approaches employing quaternary ammonium compounds, chitosan, antimicrobial peptides, and enzymes. All of these strategies have given proof of antimicrobial efficacy by modifying the physiology of pathogens or disrupting their structural integrity. The aim for synergistic approaches using multitarget processes and the combination of both antifouling and bactericidal properties holds potential for the near future. Despite intensive research in biofilm preventive strategies, laboratorial studies still present some limitations since experimental conditions usually are not the same and also differ from biological conditions encountered when the catheter is inserted in the human body. Consequently, in most cases, the efficacy data obtained from in vitro studies is not properly reflected in the clinical setting. Thus, further well-designed clinical trials and additional cytotoxicity studies are needed to prove the efficacy and safety of the developed antimicrobial strategies in the prevention of biofilm formation at catheter surfaces.
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Affiliation(s)
- Susana I. C. Ricardo
- Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Inês I. L. Anjos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Nuno Monge
- Centro Interdisciplinar de Estudos Educacionais (CIED), Escola Superior de Educação de Lisboa, Instituto Politécnico de Lisboa, Campus de Benfica do IPL, 1549-003 Lisboa, Portugal
| | - Célia M. C. Faustino
- Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Isabel A. C. Ribeiro
- Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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5
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Balikci E, Yilmaz B, Tahmasebifar A, Baran ET, Kara E. Surface modification strategies for hemodialysis catheters to prevent catheter-related infections: A review. J Biomed Mater Res B Appl Biomater 2020; 109:314-327. [PMID: 32864803 DOI: 10.1002/jbm.b.34701] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/21/2020] [Accepted: 08/04/2020] [Indexed: 12/11/2022]
Abstract
Insertion of a central venous catheter is one of the most common invasive procedures applied in hemodialysis therapy for end-stage renal disease. The most important complication of a central venous catheter is catheter-related infections that increase hospitalization and duration of intensive care unit stay, cost of treatment, mortality, and morbidity rates. Pathogenic microorganisms, such as, bacteria and fungi, enter the body from the catheter insertion site and the surface of the catheter can become colonized. The exopolysaccharide-based biofilms from bacterial colonies on the surface are the main challenge in the treatment of infections. Catheter lock solutions and systemic antibiotic treatment, which are commonly used in the treatment of hemodialysis catheter-related infections, are insufficient to prevent and terminate the infections and eventually the catheter needs to be replaced. The inadequacy of these approaches in termination and prevention of infection revealed the necessity of coating of hemodialysis catheters with bactericidal and/or antiadhesive agents. Silver compounds and nanoparticles, anticoagulants (e.g., heparin), antibiotics (e.g., gentamicin and chlorhexidine) are some of the agents used for this purpose. The effectiveness of few commercial hemodialysis catheters that were coated with antibacterial agents has been tested in clinical trials against catheter-related infections of pathogenic bacteria, such as Staphylococcus aureus and Staphylococcus epidermidis with promising results. Novel biomedical materials and engineering techniques, such as, surface micro/nano patterning and the conjugation of antimicrobial peptides, enzymes, metallic cations, and hydrophilic polymers (e.g., poly [ethylene glycol]) on the surface, has been suggested recently.
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Affiliation(s)
- Elif Balikci
- Department of Tissue Engineering, University of Health Sciences Turkey, Istanbul, 34668, Turkey
| | - Bengi Yilmaz
- Department of Tissue Engineering, University of Health Sciences Turkey, Istanbul, 34668, Turkey.,Department of Biomaterials, University of Health Sciences Turkey, Istanbul, 34668, Turkey
| | - Aydin Tahmasebifar
- Department of Tissue Engineering, University of Health Sciences Turkey, Istanbul, 34668, Turkey.,Department of Biomaterials, University of Health Sciences Turkey, Istanbul, 34668, Turkey
| | - Erkan Türker Baran
- Department of Tissue Engineering, University of Health Sciences Turkey, Istanbul, 34668, Turkey.,Department of Biomaterials, University of Health Sciences Turkey, Istanbul, 34668, Turkey
| | - Ekrem Kara
- Department of Internal Medicine, Division of Nephrology, School of Medicine, Recep Tayyip Erdogan University, Rize, 53100, Turkey
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Mala R, Annie Aglin A, Ruby Celsia AS, Geerthika S, Kiruthika N, VazagaPriya C, Srinivasa Kumar K. Foley catheters functionalised with a synergistic combination of antibiotics and silver nanoparticles resist biofilm formation. IET Nanobiotechnol 2019; 11:612-620. [PMID: 28745297 DOI: 10.1049/iet-nbt.2016.0148] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Foley catheters are inevitable in health care unit. Pathogens colonise and form biofilm on catheter causing catheter-associated urinary tract infection. Therefore, the authors aimed to functionalise catheter to resist biofilm formation. The authors impregnated urinary catheters with a synergistic combination of antibiotics and silver nanoparticles (SNPs) to evaluate antibiofilm efficacy in vitro and in vivo. SNPs were synthesised using Spirulina platensis. Synergy between the SNPs and antibiotics was determined by the checker-board method. In vivo efficacy of the functionalised catheters was assessed in mice. Liver and kidney function tests of mice were performed. The in vitro anti-adherence activity of the functionalised catheters was evaluated after 2 years. Nanoparticle sizes were 42-75 nm. Synergistic activity was observed among SNPs (2 µg/ml), amikacin (6.25 µg/ml), and nitrofurantoin (31.25 µg/ml). In mice, catheters functionalised with combinations of antibiotics and SNPs exhibited no colonisation until Day 14. Blood, liver, and kidney tests were normal. After 2 years, catheters functionalised with antibiotics exhibited 25% inhibition of bacterial adhesion, and catheters functionalised with the nanoparticle-antibiotic combination exhibited 90% inhibition. Impregnation of urinary catheters with a synergistic combination of antibiotics and SNPs is an efficient and promising method for preventing biofilm formation.
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Affiliation(s)
- Rajendran Mala
- Department of Biotechnology, Mepco Schlenk Engineering College, Sivakasi 626005, Tamil Nadu, India.
| | - Antony Annie Aglin
- Department of Biotechnology, Mepco Schlenk Engineering College, Sivakasi 626005, Tamil Nadu, India
| | | | - Sivalingam Geerthika
- Department of Biotechnology, Mepco Schlenk Engineering College, Sivakasi 626005, Tamil Nadu, India
| | - Narbahvi Kiruthika
- Department of Biotechnology, Mepco Schlenk Engineering College, Sivakasi 626005, Tamil Nadu, India
| | - Chinnathambi VazagaPriya
- Department of Biotechnology, Mepco Schlenk Engineering College, Sivakasi 626005, Tamil Nadu, India
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Chen HC, Cheng CY, Lin HC, Chen HH, Chen CH, Yang CP, Yang KH, Lin CM, Lin TY, Shih CM, Liu YC. Multifunctions of Excited Gold Nanoparticles Decorated Artificial Kidney with Efficient Hemodialysis and Therapeutic Potential. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19691-700. [PMID: 27390874 DOI: 10.1021/acsami.6b05905] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Chronic kidney disease (CKD) is inflammation-related. Patients with chronic renal failure who undergo hemodialysis (HD) have some acute adverse effects caused by dialysis-induced oxidative stress, protein adsorption, platelet adhesion, and activation of coagulation and inflammation. Here, resonantly illuminated gold nanoparticles-modified artificial kidney (AuNPs@AK) for achieving high efficiency accompanying therapeutic strategy for CKD during HD is proposed. The efficiency in removing uremic toxins increased obviously, especially in the presence of protein (closer to the real blood). The excited AuNPs@AK expressed negatively charged surface reduced some acute adverse effects caused by dialysis-induced protein adsorption, platelet adhesion, and activation of coagulation, thus avoiding thrombosis during HD. Unlike to traditional HD which provides only one function of removing uremic toxins, the solution collected from the outlet of the sample channel of excited AuNPs@AK showed an efficient free radical scavenger that could decrease dialysis-induced oxidative stress. In the CKD mouse model, this antioxidative solution from excited AuNPs@AK further decreased fibronectin expression and attenuated renal fibrosis, suggesting a reduced inflammatory response. These successful in vitro and in vivo approaches suggest that resonantly illuminated AuNPs@AK in HD take multiadvantages in shortening treatment time and reducing risk of adverse effects, which promise trailblazing therapeutic strategies for CKD.
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Affiliation(s)
- Hsiao-Chien Chen
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street., Taipei 11031, Taiwan
| | - Chung-Yi Cheng
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Wan Fang Hospital , 111 Hsing-Long Road, Section 3, Taipei 11696, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Hsiu-Chen Lin
- Department of Laboratory Medicine, Taipei Medical University Hospital , No. 252, Wuxing Street, Taipei 11031, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Hsi-Hsien Chen
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street, Taipei 11031, Taiwan
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital , No. 252, Wuxing Street, Taipei 11031, Taiwan
| | - Cheng-Hsien Chen
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Chih-Ping Yang
- Graduate Institute of Medical Science, College of Medicine, Taipei Medical University , No. 250, Wuxing Street, Taipei 11031, Taiwan
| | - Kai-Huei Yang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street., Taipei 11031, Taiwan
| | - Chun-Mao Lin
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street., Taipei 11031, Taiwan
| | - Tsung-Yao Lin
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street., Taipei 11031, Taiwan
| | - Chwen-Ming Shih
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street., Taipei 11031, Taiwan
| | - Yu-Chuan Liu
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , No. 250, Wuxing Street., Taipei 11031, Taiwan
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8
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New Technology: Heparin and Antimicrobial-Coated Catheters. J Vasc Access 2015; 16 Suppl 9:S48-53. [DOI: 10.5301/jva.5000376] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2015] [Indexed: 11/20/2022] Open
Abstract
Although tunneled hemodialysis catheter must be considered the last option for vascular access, it is necessary in some circumstances in the dialysis patient. Thrombosis and infections are the main causes of catheter-related comorbidity. Fibrin sheath, intimately related with the biofilm, is the precipitating factor of this environment, determining catheter patency and patient morbidity. Its association with bacterial overgrowth and thrombosis has led to the search of multiple preventive measures. Among them is the development of catheter coatings to prevent thrombosis and infections. There are two kinds of treatments to cover the catheter surface: antithrombotic and antimicrobial coatings. In nondialysis-related settings, mainly in intensive care units, both have been shown to be efficient in the prevention of catheter-related infection. This includes heparin, silver, chlorhexidine, rifampicine and minocycline. In hemodialysis population, however, few studies on surface-treated catheters have been made and they do not provide evidence that shows complication reduction. The higher effectiveness of coatings in nontunneled catheters may depend on the short average life of these devices. Hemodialysis catheters need to be used over long periods of time and require clinical trials to show effectiveness of coatings over long periods. This also means greater knowledge of biofilm etiopathogeny and fibrin sheath development.
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9
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Stable poly(St-co-BA) nanoemulsion polymerization for high performance antibacterial coatings in the presence of dioctyldimethylammonium chloride. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:234-242. [DOI: 10.1016/j.msec.2014.12.085] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 11/27/2014] [Accepted: 12/31/2014] [Indexed: 01/07/2023]
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10
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Paladini F, Picca RA, Sportelli MC, Cioffi N, Sannino A, Pollini M. Surface chemical and biological characterization of flax fabrics modified with silver nanoparticles for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 52:1-10. [PMID: 25953533 DOI: 10.1016/j.msec.2015.03.035] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 01/16/2015] [Accepted: 03/22/2015] [Indexed: 02/07/2023]
Abstract
Silver nanophases are increasingly used as effective antibacterial agent for biomedical applications and wound healing. This work aims to investigate the surface chemical composition and biological properties of silver nanoparticle-modified flax substrates. Silver coatings were deposited on textiles through the in situ photo-reduction of a silver solution, by means of a large-scale apparatus. The silver-coated materials were characterized through X-ray Photoelectron Spectroscopy (XPS), to assess the surface elemental composition of the coatings, and the chemical speciation of both the substrate and the antibacterial nanophases. A detailed investigation of XPS high resolution regions outlined that silver is mainly present on nanophases' surface as Ag2O. Scanning electron microscopy and energy dispersive X-ray spectroscopy were also carried out, in order to visualize the distribution of silver particles on the fibers. The materials were also characterized from a biological point of view in terms of antibacterial capability and cytotoxicity. Agar diffusion tests and bacterial enumeration tests were performed on Gram positive and Gram negative bacteria, namely Staphylococcus aureus and Escherichia coli. In vitro cytotoxicity tests were performed through the extract method on murine fibroblasts in order to verify if the presence of the silver coating affected the cellular viability and proliferation. Durability of the coating was also assessed, thus confirming the successful scaling up of the process, which will be therefore available for large-scale production.
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Affiliation(s)
- F Paladini
- Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, Italy.
| | - R A Picca
- Department of Chemistry, University of Bari "Aldo Moro", Via Orabona 4, 70126 Bari, Italy
| | - M C Sportelli
- Department of Chemistry, University of Bari "Aldo Moro", Via Orabona 4, 70126 Bari, Italy
| | - N Cioffi
- Department of Chemistry, University of Bari "Aldo Moro", Via Orabona 4, 70126 Bari, Italy
| | - A Sannino
- Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, Italy
| | - M Pollini
- Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, Italy
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11
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De Simone S, Lombardi FA, Paladini F, Starace G, Sannino A, Pollini M. Development of antibacterial silver treatments on HDPE nets for agriculture. J Appl Polym Sci 2014. [DOI: 10.1002/app.41623] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Serena De Simone
- Dhitech Scarl, Technological District Hi-Tech, Via S. Trinchese; 61-73100 Lecce Italy
| | | | - Federica Paladini
- Department of Engineering for Innovation; University of Salento; 73100 Lecce Italy
| | - Giuseppe Starace
- Department of Engineering for Innovation; University of Salento; 73100 Lecce Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation; University of Salento; 73100 Lecce Italy
| | - Mauro Pollini
- Department of Engineering for Innovation; University of Salento; 73100 Lecce Italy
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12
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De Simone S, Gallo AL, Paladini F, Sannino A, Pollini M. Development of silver nano-coatings on silk sutures as a novel approach against surgical infections. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2205-2214. [PMID: 24997984 DOI: 10.1007/s10856-014-5262-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 06/19/2014] [Indexed: 06/03/2023]
Abstract
The infections give rise to a range of clinical problems and prolong hospitalization with increased healthcare costs. Moreover, persistent infections exasperate the problem of antibiotic resistance. The aim of this study was the development of effective and low-cost antibacterial silver coatings on surgical sutures by adopting an innovative photochemical deposition process to prevent early contamination of surgical wounds. The silver deposition technology adopted in this work is an innovative process based on the in situ photoreduction of a silver solution. The samples were dipped in the silver solution and then exposed to UV radiation in order to induce the synthesis of silver clusters on the surface of the suture. The homogeneous distribution of silver particles on the surface and on the cross-section of the treated sutures was demonstrated. All the antibacterial studies clearly demonstrated that the use of novel silver treated sutures could represent clinical advantages in terms of the prevention of surgical infections against bacterial colonization. The silver coating deposited on the sutures demonstrated no cytotoxic effect on a selected cell population. The results obtained suggested that the antibacterial silver-coated sutures developed in this work could represent an interesting alternative to conventional sutures, with evident advantages in terms of prevention of the surgical infections and on the health costs. In addiction, very low concentrations of silver significantly inhibited the microbial load, without affecting the cell viability.
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Affiliation(s)
- S De Simone
- Dhitech Scarl, Technological District Hi-Tech, via Salvatore Trinchese 61, 73100, Lecce, Italy
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13
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Paladini F, De Simone S, Sannino A, Pollini M. Antibacterial and antifungal dressings obtained by photochemical deposition of silver nanoparticles. J Appl Polym Sci 2014. [DOI: 10.1002/app.40326] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Federica Paladini
- Department of Engineering for Innovation; University of Salento; 73100 Lecce Italy
| | - Serena De Simone
- Dhitech Scarl; Technological District Hi-Tech; 73100 Lecce Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation; University of Salento; 73100 Lecce Italy
| | - Mauro Pollini
- Department of Engineering for Innovation; University of Salento; 73100 Lecce Italy
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14
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Paladini F, Sannino A, Pollini M. In vivo testing of silver treated fibers for the evaluation of skin irritation effect and hypoallergenicity. J Biomed Mater Res B Appl Biomater 2013; 102:1031-7. [DOI: 10.1002/jbm.b.33085] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 10/15/2013] [Accepted: 11/16/2013] [Indexed: 11/10/2022]
Affiliation(s)
- F. Paladini
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | - A. Sannino
- Department of Engineering for Innovation; University of Salento; Lecce Italy
- Department of Engineering for Innovation; Silvertech Ltd, via Monteroni; Lecce Italy
| | - M. Pollini
- Department of Engineering for Innovation; University of Salento; Lecce Italy
- Department of Engineering for Innovation; Silvertech Ltd, via Monteroni; Lecce Italy
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