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Khursheed A, Xu LC, Siedlecki CA. The effects of submicron-textured surface topography on antibiotic efficacy against biofilms. J Biomed Mater Res B Appl Biomater 2024; 112:e35436. [PMID: 38961592 PMCID: PMC11239140 DOI: 10.1002/jbm.b.35436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/23/2024] [Accepted: 05/14/2024] [Indexed: 07/05/2024]
Abstract
Submicron-textured surfaces have been a promising approach to mitigate biofilm development and control microbial infection. However, the use of the single surface texturing approach is still far from ideal for achieving complete control of microbial infections on implanted biomedical devices. The use of a surface topographic modification that might improve the utility of standard antibiotic therapy could alleviate the complications of biofilms on devices. In this study, we characterized the biofilms of Staphylococcus aureus and Pseudomonas aeruginosa on smooth and submicron-textured polyurethane surfaces after 1, 2, 3, and 7 days, and measured the efficacy of common antibiotics against these biofilms. Results show that the submicron-textured surfaces significantly reduced biofilm formation and growth, and that the efficacy of antibiotics against biofilms grown on textured surfaces was improved compared with smooth surfaces. The antibiotic efficacy appears to be related to the degree of biofilm development. At early time points in biofilm formation, antibiotic treatment reveals reasonably good antibiotic efficacy against biofilms on both smooth and textured surfaces, but as biofilms mature, the efficacy of antibiotics drops dramatically on smooth surfaces, with lesser decreases seen for the textured surfaces. The results demonstrate that surface texturing with submicron patterns is able to improve the use of standard antibiotic therapy to treat device-centered biofilms by slowing the development of the biofilm, thereby offering less resistance to antibiotic delivery to the bacteria within the biofilm community.
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Affiliation(s)
- Asma Khursheed
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
| | - Li-Chong Xu
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
| | - Christopher A Siedlecki
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
- Department of Biomedical Engineering, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
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2
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Sharma DK, Rajpurohit YS. Multitasking functions of bacterial extracellular DNA in biofilms. J Bacteriol 2024; 206:e0000624. [PMID: 38445859 PMCID: PMC11025335 DOI: 10.1128/jb.00006-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024] Open
Abstract
Bacterial biofilms are intricate ecosystems of microbial communities that adhere to various surfaces and are enveloped by an extracellular matrix composed of polymeric substances. Within the context of bacterial biofilms, extracellular DNA (eDNA) originates from cell lysis or is actively secreted, where it exerts a significant influence on the formation, stability, and resistance of biofilms to environmental stressors. The exploration of eDNA within bacterial biofilms holds paramount importance in research, with far-reaching implications for both human health and the environment. An enhanced understanding of the functions of eDNA in biofilm formation and antibiotic resistance could inspire the development of strategies to combat biofilm-related infections and improve the management of antibiotic resistance. This comprehensive review encapsulates the latest discoveries concerning eDNA, encompassing its origins, functions within bacterial biofilms, and significance in bacterial pathogenesis.
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Affiliation(s)
- Dhirendra Kumar Sharma
- Molecular Biology Division, Bhabha Atomic Research Centre, Mumbai, India
- Schools of Life Sciences, Homi Bhabha National Institute (DAE—Deemed University), Mumbai, India
| | - Yogendra Singh Rajpurohit
- Molecular Biology Division, Bhabha Atomic Research Centre, Mumbai, India
- Schools of Life Sciences, Homi Bhabha National Institute (DAE—Deemed University), Mumbai, India
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3
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Uysal I, Tezcaner A, Evis Z. Methods to improve antibacterial properties of PEEK: A review. Biomed Mater 2024; 19:022004. [PMID: 38364280 DOI: 10.1088/1748-605x/ad2a3d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
As a thermoplastic and bioinert polymer, polyether ether ketone (PEEK) serves as spine implants, femoral stems, cranial implants, and joint arthroplasty implants due to its mechanical properties resembling the cortical bone, chemical stability, and radiolucency. Although there are standards and antibiotic treatments for infection control during and after surgery, the infection risk is lowered but can not be eliminated. The antibacterial properties of PEEK implants should be improved to provide better infection control. This review includes the strategies for enhancing the antibacterial properties of PEEK in four categories: immobilization of functional materials and functional groups, forming nanocomposites, changing surface topography, and coating with antibacterial material. The measuring methods of antibacterial properties of the current studies of PEEK are explained in detail under quantitative, qualitative, andin vivomethods. The mechanisms of bacterial inhibition by reactive oxygen species generation, contact killing, trap killing, and limited bacterial adhesion on hydrophobic surfaces are explained with corresponding antibacterial compounds or techniques. The prospective analysis of the current studies is done, and dual systems combining osteogenic and antibacterial agents immobilized on the surface of PEEK are found the promising solution for a better implant design.
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Affiliation(s)
- Idil Uysal
- Department of Biomedical Engineering, Middle East Technical University, 06800 Ankara, Turkey
| | - Ayşen Tezcaner
- Department of Biomedical Engineering, Middle East Technical University, 06800 Ankara, Turkey
- Department of Engineering Sciences, Middle East Technical University, 06800 Ankara, Turkey
| | - Zafer Evis
- Department of Biomedical Engineering, Middle East Technical University, 06800 Ankara, Turkey
- Department of Engineering Sciences, Middle East Technical University, 06800 Ankara, Turkey
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4
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Zhang Y, Young P, Traini D, Li M, Ong HX, Cheng S. Challenges and current advances in in vitro biofilm characterization. Biotechnol J 2023; 18:e2300074. [PMID: 37477959 DOI: 10.1002/biot.202300074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/22/2023]
Abstract
Biofilms are structured communities of bacterial cells encased in a self-produced polymeric matrix, which develop over time and exhibit temporal responses to stimuli from internal biological processes or external environmental changes. They can be detrimental, threatening public health and causing economic loss, while they also play beneficial roles in ecosystem health, biotechnology processes, and industrial settings. Biofilms express extreme heterogeneity in their physical properties and structural composition, resulting in critical challenges in understanding them comprehensively. The lack of detailed knowledge of biofilms and their phenotypes has deterred significant progress in developing strategies to control their negative impacts and take advantage of their beneficial applications. A range of in vitro models and characterization tools have been developed and used to study biofilm growth and, specifically, to investigate the impact of environmental and growth factors on their development. This review article discusses the existing knowledge of biofilm properties and explains how external factors, such as flow condition, surface, interface, and host factor, may impact biofilm growth. The limitations of current tools, techniques, and in vitro models that are currently used for biofilms are also presented.
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Affiliation(s)
- Ye Zhang
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, Australia
- Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
| | - Paul Young
- Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
- Department of Marketing, Macquarie Business School, Macquarie University, Sydney, New South Wales, Australia
| | - Daniela Traini
- Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Ming Li
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, Australia
| | - Hui Xin Ong
- Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Shaokoon Cheng
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, Australia
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5
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Zhao H, Shrestha K, Hensley DK, Venton BJ. Carbon nanospikes have improved sensitivity and antifouling properties for adenosine, hydrogen peroxide, and histamine. Anal Bioanal Chem 2023; 415:6039-6050. [PMID: 37505236 PMCID: PMC10867945 DOI: 10.1007/s00216-023-04875-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
Carbon nanospikes (CNSs) are a new nanomaterial that has enhanced surface roughness and surface oxide concentration, increasing the sensitivity for dopamine detection. However, CNS-modified electrodes (CNSMEs) have not been characterized for other neurochemicals, particularly those with higher oxidation potentials. The purpose of this study was to evaluate CNSMEs for the detection of adenosine, hydrogen peroxide (H2O2), and histamine. The sensitivity increased with CNSs, and signals at CNSMEs were about 3.3 times higher than CFMEs. Normalizing for surface area differences using background currents, CNSMEs show an increased signal of 4.8 times for adenosine, 1.5 times for H2O2, and 2 times for histamine. CNSMEs promoted the formation of secondary products for adenosine and histamine, which enables differentiation from other analytes with similar oxidation potentials. CNSs also selectively enhance the sensitivity for adenosine and histamine compared to H2O2. A scan rate test reveals that adenosine is more adsorption-controlled at CNS electrodes than CFMEs. CNSMEs are antifouling for histamine, with less fouling because the polymers formed after histamine electrooxidation do not adsorb due to an elevated number of edge planes. CNSMEs were useful for detecting each analyte applied in brain slices. Because of the hydrophilic surface compared to CFMEs, CNSMEs also have reduced biofouling when used in tissue. Therefore, CNSMEs are useful for tissue measurements of adenosine, hydrogen peroxide, and histamine with high selectivity and low fouling.
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Affiliation(s)
- He Zhao
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA
| | - Kailash Shrestha
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA
| | - Dale K Hensley
- Center for Nanophase Materials Sciences, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - B Jill Venton
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA.
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6
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Rajaramon S, David H, Sajeevan A, Shanmugam K, Sriramulu H, Dandela R, Solomon AP. Multi-functional approach in the design of smart surfaces to mitigate bacterial infections: a review. Front Cell Infect Microbiol 2023; 13:1139026. [PMID: 37287465 PMCID: PMC10242021 DOI: 10.3389/fcimb.2023.1139026] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/03/2023] [Indexed: 06/09/2023] Open
Abstract
Advancements in biomedical devices are ingenious and indispensable in health care to save millions of lives. However, microbial contamination paves the way for biofilm colonisation on medical devices leading to device-associated infections with high morbidity and mortality. The biofilms elude antibiotics facilitating antimicrobial resistance (AMR) and the persistence of infections. This review explores nature-inspired concepts and multi-functional approaches for tuning in next-generation devices with antibacterial surfaces to mitigate resistant bacterial infections. Direct implementation of natural inspirations, like nanostructures on insect wings, shark skin, and lotus leaves, has proved promising in developing antibacterial, antiadhesive, and self-cleaning surfaces, including impressive SLIPS with broad-spectrum antibacterial properties. Effective antimicrobial touch surfaces, photocatalytic coatings on medical devices, and conventional self-polishing coatings are also reviewed to develop multi-functional antibacterial surfaces to mitigate healthcare-associated infections (HAIs).
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Affiliation(s)
- Shobana Rajaramon
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Helma David
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Anusree Sajeevan
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Karthi Shanmugam
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Hrithiha Sriramulu
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Bhubaneswar, India
| | - Adline Princy Solomon
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
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7
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Alves D, Grainha T, Pereira MO, Lopes SP. Antimicrobial materials for endotracheal tubes: A review on the last two decades of technological progress. Acta Biomater 2023; 158:32-55. [PMID: 36632877 DOI: 10.1016/j.actbio.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/21/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023]
Abstract
Ventilator-associated pneumonia (VAP) is an unresolved problem in nosocomial settings, remaining consistently associated with a lack of treatment, high mortality, and prolonged hospital stay. The endotracheal tube (ETT) is the major culprit for VAP development owing to its early surface microbial colonization and biofilm formation by multiple pathogens, both critical events for VAP pathogenesis and relapses. To combat this matter, gradual research on antimicrobial ETT surface coating/modification approaches has been made. This review provides an overview of the relevance and implications of the ETT bioburden for VAP pathogenesis and how technological research on antimicrobial materials for ETTs has evolved. Firstly, certain main VAP attributes (definition/categorization; outcomes; economic impact) were outlined, highlighting the issues in defining/diagnosing VAP that often difficult VAP early- and late-onset differentiation, and that generate misinterpretations in VAP surveillance and discrepant outcomes. The central role of the ETT microbial colonization and subsequent biofilm formation as fundamental contributors to VAP pathogenesis was then underscored, in parallel with the uncovering of the polymicrobial ecosystem of VAP-related infections. Secondly, the latest technological developments (reported since 2002) on materials able to endow the ETT surface with active antimicrobial and/or passive antifouling properties were annotated, being further subject to critical scrutiny concerning their potentialities and/or constraints in reducing ETT bioburden and the risk of VAP while retaining/improving the safety of use. Taking those gaps/challenges into consideration, we discussed potential avenues that may assist upcoming advances in the field to tackle VAP rampant rates and improve patient care. STATEMENT OF SIGNIFICANCE: The use of the endotracheal tube (ETT) in patients requiring mechanical ventilation is associated with the development of ventilator-associated pneumonia (VAP). Its rapid surface colonization and biofilm formation are critical events for VAP pathogenesis and relapses. This review provides a comprehensive overview on the relevance/implications of the ETT biofilm in VAP, and on how research on antimicrobial ETT surface coating/modification technology has evolved over the last two decades. Despite significant technological advances, the limited number of gathered reports (46), highlights difficulty in overcoming certain hurdles associated with VAP (e.g., persistent colonization/biofilm formation; mechanical ventilation duration; hospital length of stay; VAP occurrence), which makes this an evolving, complex, and challenging matter. Challenges and opportunities in the field are discussed.
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Affiliation(s)
- Diana Alves
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga/Guimarães, Portugal.
| | - Tânia Grainha
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga/Guimarães, Portugal.
| | - Maria Olívia Pereira
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga/Guimarães, Portugal.
| | - Susana Patrícia Lopes
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga/Guimarães, Portugal.
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8
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Vieira A, Rodríguez-Lorenzo L, Leonor IB, Reis RL, Espiña B, Dos Santos MB. Innovative Antibacterial, Photocatalytic, Titanium Dioxide Microstructured Surfaces Based on Bacterial Adhesion Enhancement. ACS APPLIED BIO MATERIALS 2023; 6:754-764. [PMID: 36696391 DOI: 10.1021/acsabm.2c00956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Bacterial colonization and biofilm formation are found on nearly all wet surfaces, representing a serious problem for both human healthcare and industrial applications, where traditional treatments may not be effective. Herein, we describe a synergistic approach for improving the performance of antibacterial surfaces based on microstructured surfaces that embed titanium dioxide nanoparticles (TiO2 NPs). The surfaces were designed to enhance bacteria entrapment, facilitating their subsequent eradication by a combination of UVC disinfection and TiO2 NPs photocatalysis. The efficacy of the engineered TiO2-modified microtopographic surfaces was evaluated using three different designs, and it was found that S2-lozenge and S3-square patterns had a higher concentration of trapped bacteria, with increases of 70 and 76%, respectively, compared to flat surfaces. Importantly, these surfaces showed a significant reduction (99%) of viable bacteria after just 30 min of irradiation with UVC 254 nm light at low intensity, being sixfold more effective than flat surfaces. Overall, our results showed that the synergistic effect of combining microstructured capturing surfaces with the chemical functionality of TiO2 NPs paves the way for developing innovative and efficient antibacterial surfaces with numerous potential applications in the healthcare and biotechnology market.
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Affiliation(s)
- Ana Vieira
- INL─International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, Braga4715-330, Portugal
| | - Laura Rodríguez-Lorenzo
- INL─International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, Braga4715-330, Portugal
| | - Isabel B Leonor
- 3B's Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Guimarães4805-017, Barco, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães4805-017, Portugal
| | - Rui L Reis
- 3B's Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Guimarães4805-017, Barco, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães4805-017, Portugal
| | - Begoña Espiña
- INL─International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, Braga4715-330, Portugal
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Xu LC, Siedlecki CA. Surface Texturing and Combinatorial Approaches to Improve Biocompatibility of Implanted Biomaterials. FRONTIERS IN PHYSICS 2022; 10:994438. [PMID: 38250242 PMCID: PMC10798815 DOI: 10.3389/fphy.2022.994438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Biomaterial associated microbial infection and blood thrombosis are two of the barriers that inhibit the successful use of implantable medical devices in modern healthcare. Modification of surface topography is a promising approach to combat microbial infection and thrombosis without altering bulk material properties necessary for device function and without contributing to bacterial antibiotic resistance. Similarly, the use of other antimicrobial techniques such as grafting poly(ethylene glycol) (PEG) and nitric oxide (NO) release also improve the biocompatibility of biomaterials. In this review, we discuss the development of surface texturing techniques utilizing ordered submicron-size pillars for controlling bacterial adhesion and biofilm formation, and we present combinatorial approaches utilizing surface texturing in combination with poly(ethylene glycol) (PEG) grafting and NO release to improve the biocompatibility of biomaterials. The manuscript also discusses efforts towards understanding the molecular mechanisms of bacterial adhesion responses to the surface texturing and NO releasing biomaterials, focusing on experimental aspects of the approach.
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Affiliation(s)
- Li-Chong Xu
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033
| | - Christopher A. Siedlecki
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033
- Department of Biomedical Engineering, The Pennsylvania State University, College of Medicine, Hershey, PA 17033
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10
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Xu LC, Siedlecki CA. Submicron topography design for controlling staphylococcal bacterial adhesion and biofilm formation. J Biomed Mater Res A 2022; 110:1238-1250. [PMID: 35128791 PMCID: PMC9885517 DOI: 10.1002/jbm.a.37369] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 02/01/2023]
Abstract
Surface topography modification with nano- or micro-textured structures has been an efficient approach to inhibit microbial adhesion and biofilm formation and thereby to prevent biomaterial-associated infection without modification of surface chemistry/bulk properties of materials and without causing antibiotic resistance. This manuscript focuses on submicron-textured patterns with ordered arrays of pillars on polyurethane (PU) biomaterial surfaces in an effort to understand the effects of surface pillar features and surface properties on adhesion and colonization responses of two staphylococcal strains. Five submicron patterns with a variety of pillar dimensions were designed and fabricated on PU film surfaces and bacterial adhesion and biofilm formation of Staphylococcal strains (Staphylococcus epidermidis RP62A and Staphylococcus aureus Newman D2C) were characterized. Results show that all submicron textured surface significantly reduced bacterial adhesion and inhibited biofilm formation, and bacterial adhesion linearly decreased with the reduction in top surface area fraction. Surface wettability did not show a linear correlation with bacterial adhesion, suggesting that surface contact area dominates bacterial adhesion. From this, it appears that the design of textured patterns should minimize surface area fraction to reduce the bacterial interaction with surfaces but in a way that ensures the mechanical strength of pillars in order to avoid collapse. These findings may provide a rationale for design of polymer surfaces for antifouling medical devices.
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Affiliation(s)
- Li-Chong Xu
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033
| | - Christopher A. Siedlecki
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033,Department of Biomedical Engineering,The Pennsylvania State University, College of Medicine, Hershey, PA 17033,Correspondence: Dr. Christopher A. Siedlecki, The Pennsylvania State University, Milton S. Hershey Medical Center, College of Medicine, H151, 500 University Dr., Hershey, PA 17033. Phone: (717) 531-5716. Fax: (717) 531-4464.
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11
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Zheng TX, Li W, Gu YY, Zhao D, Qi MC. Classification and research progress of implant surface antimicrobial techniques. J Dent Sci 2022; 17:1-7. [PMID: 35028014 PMCID: PMC8739780 DOI: 10.1016/j.jds.2021.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/30/2021] [Indexed: 12/13/2022] Open
Abstract
Due to the good biocompatibility and ideal mechanical property, titanium implants have been widely used in dental clinic and orthopedic surgery. However, bacteria induced infection can cause per-implant inflammation and decrease the success rate of implant surgery. Therefore, developing antimicrobial techniques is essential to successful application of titanium implants. Many surface antimicrobial techniques, including antimicrobial coating and surface modifications, have been explored and they always exert antimicrobial effect by reducing bacterial adhesion, inhibiting their metabolism, or destructing cell structure. In this paper, different surface antimicrobial techniques and their recent research progress are reviewed to provide a brief insight on this area.
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Affiliation(s)
| | | | | | | | - Meng-Chun Qi
- Corresponding author. Department of Oral & Maxillofacial Surgery, College of stomatology, North China University of Science and Technology, No.21 Bohai Road, District of Caofeidian, Tangshan City, 063200, Hebei Province, PR China.
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12
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Nicolas M, Beito B, Oliveira M, Tudela Martins M, Gallas B, Salmain M, Boujday S, Humblot V. Strategies for Antimicrobial Peptides Immobilization on Surfaces to Prevent Biofilm Growth on Biomedical Devices. Antibiotics (Basel) 2021; 11:13. [PMID: 35052891 PMCID: PMC8772980 DOI: 10.3390/antibiotics11010013] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 01/04/2023] Open
Abstract
Nosocomial and medical device-induced biofilm infections affect millions of lives and urgently require innovative preventive approaches. These pathologies have led to the development of numerous antimicrobial strategies, an emergent topic involving both natural and synthetic routes, among which some are currently under testing for clinical approval and use. Antimicrobial peptides (AMPs) are ideal candidates for this fight. Therefore, the strategies involving surface functionalization with AMPs to prevent bacterial attachment/biofilms formation have experienced a tremendous development over the last decade. In this review, we describe the different mechanisms of action by which AMPs prevent bacterial adhesion and/or biofilm formation to better address their potential as anti-infective agents. We additionally analyze AMP immobilization techniques on a variety of materials, with a focus on biomedical applications. Furthermore, we summarize the advances made to date regarding the immobilization strategies of AMPs on various surfaces and their ability to prevent the adhesion of various microorganisms. Progress toward the clinical approval of AMPs in antibiotherapy is also reviewed.
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Affiliation(s)
- Mathieu Nicolas
- Sorbonne Université, UMR 7197, Laboratoire de Réactivité de Surface, Centre National de la Recherche Scientifique (CNRS), 4 Place Jussieu, F-75005 Paris, France;
- Sorbonne Université, Institute of Nanosciences Paris (INSP), Centre National de la Recherche Scientifique (CNRS), 4 Place Jussieu, F-75005 Paris, France;
| | - Bruno Beito
- Sorbonne Université, Master de Chimie, Profil MatNanoBio, Faculté des Sciences et Ingénierie of Sorbonne Université, 4 Place Jussieu, F-75005 Paris, France; (B.B.); (M.O.); (M.T.M.)
| | - Marta Oliveira
- Sorbonne Université, Master de Chimie, Profil MatNanoBio, Faculté des Sciences et Ingénierie of Sorbonne Université, 4 Place Jussieu, F-75005 Paris, France; (B.B.); (M.O.); (M.T.M.)
| | - Maria Tudela Martins
- Sorbonne Université, Master de Chimie, Profil MatNanoBio, Faculté des Sciences et Ingénierie of Sorbonne Université, 4 Place Jussieu, F-75005 Paris, France; (B.B.); (M.O.); (M.T.M.)
| | - Bruno Gallas
- Sorbonne Université, Institute of Nanosciences Paris (INSP), Centre National de la Recherche Scientifique (CNRS), 4 Place Jussieu, F-75005 Paris, France;
| | - Michèle Salmain
- Sorbonne Université, Institut Parisien de Chimie Moléculaire (IPCM), Centre National de la Recherche Scientifique (CNRS), 4 Place Jussieu, F-75005 Paris, France;
| | - Souhir Boujday
- Sorbonne Université, UMR 7197, Laboratoire de Réactivité de Surface, Centre National de la Recherche Scientifique (CNRS), 4 Place Jussieu, F-75005 Paris, France;
| | - Vincent Humblot
- Sorbonne Université, UMR 7197, Laboratoire de Réactivité de Surface, Centre National de la Recherche Scientifique (CNRS), 4 Place Jussieu, F-75005 Paris, France;
- Franche-Comté Électronique Mécanique Thermique et Optique-Sciences et Technologies (FEMTO-ST) Institute, Centre National de la Recherche Scientifique (CNRS), UMR 6174, Université Bourgogne Franche-Comté, 15B Avenue des Montboucons, F-25030 Besançon, France
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13
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Kumar S, Ye F, Dobretsov S, Dutta J. Nanocoating Is a New Way for Biofouling Prevention. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.771098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Biofouling is a major concern to the maritime industry. Biofouling increases fuel consumption, accelerates corrosion, clogs membranes and pipes, and reduces the buoyancy of marine installations, such as ships, platforms, and nets. While traditionally marine installations are protected by toxic biocidal coatings, due to recent environmental concerns and legislation, novel nanomaterial-based anti-fouling coatings are being developed. Hybrid nanocomposites of organic-inorganic materials give a possibility to combine the characteristics of both groups of material generating opportunities to prevent biofouling. The development of bio-inspired surface designs, progress in polymer science and advances in nanotechnology is significantly contributing to the development of eco-friendly marine coatings containing photocatalytic nanomaterials. The review mainly discusses photocatalysis, antifouling activity, and formulation of coatings using metal and metal oxide nanomaterials (nanoparticles, nanowires, nanorods). Additionally, applications of nanocomposite coatings for inhibition of micro- and macro-fouling in marine environments are reviewed.
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Cui L, Yao Y, Yim EKF. The effects of surface topography modification on hydrogel properties. APL Bioeng 2021; 5:031509. [PMID: 34368603 PMCID: PMC8318605 DOI: 10.1063/5.0046076] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 06/21/2021] [Indexed: 12/23/2022] Open
Abstract
Hydrogel has been an attractive biomaterial for tissue engineering, drug delivery, wound healing, and contact lens materials, due to its outstanding properties, including high water content, transparency, biocompatibility, tissue mechanical matching, and low toxicity. As hydrogel commonly possesses high surface hydrophilicity, chemical modifications have been applied to achieve the optimal surface properties to improve the performance of hydrogels for specific applications. Ideally, the effects of surface modifications would be stable, and the modification would not affect the inherent hydrogel properties. In recent years, a new type of surface modification has been discovered to be able to alter hydrogel properties by physically patterning the hydrogel surfaces with topographies. Such physical patterning methods can also affect hydrogel surface chemical properties, such as protein adsorption, microbial adhesion, and cell response. This review will first summarize the works on developing hydrogel surface patterning methods. The influence of surface topography on interfacial energy and the subsequent effects on protein adsorption, microbial, and cell interactions with patterned hydrogel, with specific examples in biomedical applications, will be discussed. Finally, current problems and future challenges on topographical modification of hydrogels will also be discussed.
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Affiliation(s)
- Linan Cui
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Yuan Yao
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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Kreve S, Dos Reis AC. Effect of surface properties of ceramic materials on bacterial adhesion: A systematic review. J ESTHET RESTOR DENT 2021; 34:461-472. [PMID: 34213078 DOI: 10.1111/jerd.12799] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/24/2021] [Accepted: 06/20/2021] [Indexed: 12/22/2022]
Abstract
PURPOSE The objective of this systematic review was to describe studies that report on whether surface characteristics such as electrostatic charge, surface free energy, and surface topography promote influence on bacterial adhesion on ceramic surfaces. MATERIAL AND METHOD Searches in the SCOPUS, PubMed/Medline, Web of Science, EMBASE, and Google Scholar databases were performed between December 2020 and January 2021 and updated in March 2021. In addition, a manual search of reference lists from relevant retrieved articles was performed. The criteria included: studies that evaluated ceramic surfaces, which described factors such as surface free energy, electrostatic charges, roughness, zeta potential, and their relationship with bacteria. RESULTS Database search resulted in 348 papers. Of the 24 studies selected for full reading, 17 articles remained in this systematic review. Another five studies were found in references of articles included, totaling 22 studies. These had a high heterogeneity making it difficult to perform statistical analysis, so a descriptive analysis was performed. CONCLUSIONS For dental ceramics, not enough results were found to demonstrate the influence of the electrostatic condition, and its relationship with bacterial adhesion. However, studies of this review show that there is a correlation between bacterial adhesion, surface free energy, and topography. CLINICAL SIGNIFICANCE The knowledge of ceramics with repulsive physical-chemical interactions would allow an environment suggestive of non-adhesion of pathogenic biofilm.
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Affiliation(s)
- Simone Kreve
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, USP-University of São Paulo, Ribeirão Preto, Brazil
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Zhao L, Liu T, Li X, Cui Q, Wu Q, Wang X, Song K, Ge D. Low-Temperature Hydrothermal Synthesis of Novel 3D Hybrid Nanostructures on Titanium Surface with Mechano-bactericidal Performance. ACS Biomater Sci Eng 2021; 7:2268-2278. [PMID: 34014655 DOI: 10.1021/acsbiomaterials.0c01659] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Titanium is extensively employed in modern medicines as orthopedic and dental implants, but implant failures frequently occur because of bacterial infections. Herein, three types of 3D nanostructured titanium surfaces with nanowire clusters (NWC), nanowire/sheet clusters (NW/SC) and nanosheet clusters (NSC), were fabricated using the low-temperature hydrothermal synthesis under normal pressure, and assessed for the sterilization against two common human pathogens. The results show that the NWC and NSC surfaces merely display good bactericidal activity against Escherichia coli, whereas the NW/SC surface represents optimal bactericidal efficiency against both Escherichia coli (98.6 ± 1.23%) and Staphylococcus aureus (69.82 ± 2.79%). That is attributed to the hybrid geometric nanostructure of NW/SC, i.e., the pyramidal structures of ∼23 nm in tip diameter formed with tall clustered wires, and the sharper sheets of ∼8 nm in thickness in-between these nanopyramids. This nanostructure displays a unique mechano-bactericidal performance via the synergistic effect of capturing the bacteria cells and penetrating the cell membrane. This study proves that the low-temperature hydrothermal synthesized hybrid mechano-bactericidal titanium surfaces provide a promising solution for the construction of bactericidal biomedical implants.
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Affiliation(s)
- Lidan Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Tianqing Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Xiangqin Li
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Qianqian Cui
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Qiqi Wu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Xin Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Kedong Song
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Dan Ge
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
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Wang X, Dong M, Meng Z, Chen J, Yang J, Wang X. Synthesis and Biological Activity of Acrylate Copolymers Containing 3-Oxo-N-allyl-1,2-benzisothiazole-3(2H)-carboxamide Monomer as a Marine Antifouling Coating. ChemistryOpen 2021; 10:523-533. [PMID: 33629516 PMCID: PMC8095297 DOI: 10.1002/open.202000273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/02/2021] [Indexed: 11/10/2022] Open
Abstract
A type of grafted acrylate copolymer resins, containing 3-oxo-N-allyl-1,2-benzisothiazole-2(3H)-carboxamide monomer and heterocyclic monomers, was synthesized through the copolymeri- zation of methyl methacrylate (MMA) and butyl acrylate (BA) with functional monomers. The structures of the monomers and copolymers were validated by infrared (IR) and 1 H nuclear magnetic resonance (NMR) spectroscopies. The inhibitory activities of the copolymers on algae, bacteria, and barnacle larvae were measured, and the antifouling potencies against marine macrofouling organisms were investigated. The results showed that the grafted resin had significant inhibitory effects on the growth of three marine algae (Isochrysis galbana, Nannochloropsisoculata, and Chlorella pyrenoidosa), and three bacteria (Vibrio coralliilyticus, Staphylococcus aureus,and Vibrio parahaemolyticus). The target copolymers also showed excellent inhibition of the survival of barnacle larvae. Additionally, the release rate of the antifoulant and the results of the marine field tests indicated that the grafted copolymers had outstanding antifouling potency against the attachment of marine macrofouling organisms.
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Affiliation(s)
- Xuemei Wang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Miao Dong
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Zhiping Meng
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
| | - Junhua Chen
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
| | - Jianxin Yang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- Hainan Provincial Fine Chemical Engineering Research CenterHainan UniversityHaikou570228P. R. China
| | - Xianghui Wang
- Key Laboratory of Green Catalysis and Reaction Engineering of HaikouCollege of ScienceHainan UniversityHaikou570228P. R. China
- College of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou571158P. R. China
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18
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Desalination membranes with ultralow biofouling via synergistic chemical and topological strategies. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119212] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Atthi N, Dielen M, Sripumkhai W, Pattamang P, Meananeatra R, Saengdee P, Thongsook O, Ranron N, Pankong K, Uahchinkul W, Supadech J, Klunngien N, Jeamsaksiri W, Veldhuizen P, ter Meulen JM. Fabrication of High Aspect Ratio Micro-Structures with Superhydrophobic and Oleophobic Properties by Using Large-Area Roll-to-Plate Nanoimprint Lithography. NANOMATERIALS 2021; 11:nano11020339. [PMID: 33572813 PMCID: PMC7912431 DOI: 10.3390/nano11020339] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 12/17/2022]
Abstract
Bio-inspired surfaces with superamphiphobic properties are well known as effective candidates for antifouling technology. However, the limitation of large-area mastering, patterning and pattern collapsing upon physical contact are the bottleneck for practical utilization in marine and medical applications. In this study, a roll-to-plate nanoimprint lithography (R2P NIL) process using Morphotonics’ automated Portis NIL600 tool was used to replicate high aspect ratio (5.0) micro-structures via reusable intermediate flexible stamps that were fabricated from silicon master molds. Two types of Morphotonics’ in-house UV-curable resins were used to replicate a micro-pillar (PIL) and circular rings with eight stripe supporters (C-RESS) micro-structure onto polycarbonate (PC) and polyethylene terephthalate (PET) foil substrates. The pattern quality and surface wettability was compared to a conventional polydimethylsiloxane (PDMS) soft lithography process. It was found that the heights of the R2P NIL replicated PIL and C-RESS patterns deviated less than 6% and 5% from the pattern design, respectively. Moreover, the surface wettability of the imprinted PIL and C-RESS patterns was found to be superhydro- and oleophobic and hydro- and oleophobic, respectively, with good robustness for the C-RESS micro-structure. Therefore, the R2P NIL process is expected to be a promising method to fabricate robust C-RESS micro-structures for large-scale anti-biofouling application.
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Affiliation(s)
- Nithi Atthi
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
- Correspondence:
| | - Marc Dielen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
| | - Witsaroot Sripumkhai
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pattaraluck Pattamang
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Rattanawan Meananeatra
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pawasuth Saengdee
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Oraphan Thongsook
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Norabadee Ranron
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Krynnaras Pankong
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Warinrampai Uahchinkul
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Jakrapong Supadech
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Nipapan Klunngien
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Wutthinan Jeamsaksiri
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand; (W.S.); (P.P.); (R.M.); (P.S.); (O.T.); (N.R.); (K.P.); (W.U.); (J.S.); (N.K.); (W.J.)
| | - Pim Veldhuizen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
| | - Jan Matthijs ter Meulen
- Morphotonics B.V., De Run 4281, 5503 LM Veldhoven, The Netherlands; (M.D.); (P.V.); (J.M.t.M.)
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Liu C, Bai J, Wang Y, Chen L, Wang D, Ni S, Liu H. The effects of three cold plasma treatments on the osteogenic activity and antibacterial property of PEEK. Dent Mater 2021; 37:81-93. [DOI: 10.1016/j.dental.2020.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 11/16/2022]
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Jesmer AH, Wylie RG. Controlling Experimental Parameters to Improve Characterization of Biomaterial Fouling. Front Chem 2020; 8:604236. [PMID: 33363113 PMCID: PMC7759637 DOI: 10.3389/fchem.2020.604236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 10/30/2020] [Indexed: 12/17/2022] Open
Abstract
Uncontrolled protein adsorption and cell binding to biomaterial surfaces may lead to degradation, implant failure, infection, and deleterious inflammatory and immune responses. The accurate characterization of biofouling is therefore crucial for the optimization of biomaterials and devices that interface with complex biological environments composed of macromolecules, fluids, and cells. Currently, a diverse array of experimental conditions and characterization techniques are utilized, making it difficult to compare reported fouling values between similar or different biomaterials. This review aims to help scientists and engineers appreciate current limitations and conduct fouling experiments to facilitate the comparison of reported values and expedite the development of low-fouling materials. Recent advancements in the understanding of protein-interface interactions and fouling variability due to experiment conditions will be highlighted to discuss protein adsorption and cell adhesion and activation on biomaterial surfaces.
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Affiliation(s)
| | - Ryan G. Wylie
- Department of Chemistry and Chemical Biology, Hamilton, ON, Canada
- School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
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Lee SW, Phillips KS, Gu H, Kazemzadeh-Narbat M, Ren D. How microbes read the map: Effects of implant topography on bacterial adhesion and biofilm formation. Biomaterials 2020; 268:120595. [PMID: 33360301 DOI: 10.1016/j.biomaterials.2020.120595] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/24/2020] [Accepted: 12/06/2020] [Indexed: 12/19/2022]
Abstract
Microbes have remarkable capabilities to attach to the surface of implanted medical devices and form biofilms that adversely impact device function and increase the risk of multidrug-resistant infections. The physicochemical properties of biomaterials have long been known to play an important role in biofilm formation. More recently, a series of discoveries in the natural world have stimulated great interest in the use of 3D surface topography to engineer antifouling materials that resist bacterial colonization. There is also increasing evidence that some medical device surface topographies, such as those designed for tissue integration, may unintentionally promote microbial attachment. Despite a number of reviews on surface topography and biofilm control, there is a missing link between how bacteria sense and respond to 3D surface topographies and the rational design of antifouling materials. Motivated by this gap, we present a review of how bacteria interact with surface topographies, and what can be learned from current laboratory studies of microbial adhesion and biofilm formation on specific topographic features and medical devices. We also address specific biocompatibility considerations and discuss how to improve the assessment of the anti-biofilm performance of topographic surfaces. We conclude that 3D surface topography, whether intended or unintended, is an important consideration in the rational design of safe medical devices. Future research on next-generation smart antifouling materials could benefit from a greater focus on translation to real-world applications.
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Affiliation(s)
- Sang Won Lee
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY, 13244, United States; Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY, 13244, United States
| | - K Scott Phillips
- United States Food and Drug Administration, Office of Medical Products and Tobacco, Center for Devices and Radiological Health, Office of Science and Engineering Laboratories, Division of Biology, Chemistry, and Materials Science, Silver Spring, MD, 20993, United States.
| | - Huan Gu
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY, 13244, United States; Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY, 13244, United States
| | - Mehdi Kazemzadeh-Narbat
- United States Food and Drug Administration, Office of Medical Products and Tobacco, Center for Devices and Radiological Health, Office of Product Evaluation and Quality, Office of Health Technology 6, Silver Spring, MD, 20993, United States; Musculoskeletal Clinical Regulatory Advisers (MCRA), Washington DC, 20001, United States
| | - Dacheng Ren
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY, 13244, United States; Syracuse Biomaterials Institute, Syracuse University, Syracuse, NY, 13244, United States; Department of Civil and Environmental Engineering, Syracuse University, Syracuse, NY, 13244, United States; Department of Biology, Syracuse University, Syracuse, NY, 13244, United States.
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Physical methods for controlling bacterial colonization on polymer surfaces. Biotechnol Adv 2020; 43:107586. [DOI: 10.1016/j.biotechadv.2020.107586] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/05/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
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Sterzenbach T, Helbig R, Hannig C, Hannig M. Bioadhesion in the oral cavity and approaches for biofilm management by surface modifications. Clin Oral Investig 2020; 24:4237-4260. [PMID: 33111157 PMCID: PMC7666681 DOI: 10.1007/s00784-020-03646-1] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 10/15/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND All soft and solid surface structures in the oral cavity are covered by the acquired pellicle followed by bacterial colonization. This applies for natural structures as well as for restorative or prosthetic materials; the adherent bacterial biofilm is associated among others with the development of caries, periodontal diseases, peri-implantitis, or denture-associated stomatitis. Accordingly, there is a considerable demand for novel materials and coatings that limit and modulate bacterial attachment and/or propagation of microorganisms. OBJECTIVES AND FINDINGS The present paper depicts the current knowledge on the impact of different physicochemical surface characteristics on bioadsorption in the oral cavity. Furthermore, it was carved out which strategies were developed in dental research and general surface science to inhibit bacterial colonization and to delay biofilm formation by low-fouling or "easy-to-clean" surfaces. These include the modulation of physicochemical properties such as periodic topographies, roughness, surface free energy, or hardness. In recent years, a large emphasis was laid on micro- and nanostructured surfaces and on liquid repellent superhydrophic as well as superhydrophilic interfaces. Materials incorporating mobile or bound nanoparticles promoting bacteriostatic or bacteriotoxic properties were also used. Recently, chemically textured interfaces gained increasing interest and could represent promising solutions for innovative antibioadhesion interfaces. Due to the unique conditions in the oral cavity, mainly in vivo or in situ studies were considered in the review. CONCLUSION Despite many promising approaches for modulation of biofilm formation in the oral cavity, the ubiquitous phenomenon of bioadsorption and adhesion pellicle formation in the challenging oral milieu masks surface properties and therewith hampers low-fouling strategies. CLINICAL RELEVANCE Improved dental materials and surface coatings with easy-to-clean properties have the potential to improve oral health, but extensive and systematic research is required in this field to develop biocompatible and effective substances.
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Affiliation(s)
- Torsten Sterzenbach
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany.
| | - Ralf Helbig
- Max Bergmann Center of Biomaterials, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany
| | - Christian Hannig
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, Building 73, 66421, Homburg/Saar, Germany
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The Effectiveness of Nafion-Coated Stainless Steel Surfaces for Inhibiting Bacillus Subtilis Biofilm Formation. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10145001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Stainless steel is one of most commonly used materials in the world; however, biofilms on the surfaces of stainless steel cause many serious problems. In order to find effective methods of reducing bacterial adhesion to stainless steel, and to investigate the role of electrostatic effects during the formation of biofilms, this study used a stainless steel surface that was negatively charged by being coated with Nafion which was terminated by sulfonic groups. The results showed that the roughness of stainless steel discs coated with 1% Nafion was similar to an uncoated surface; however the hydrophobicity increased, and the Nafion-coated surface reduced the adhesion of Bacillus subtilis by 75% compared with uncoated surfaces. Therefore, a facile way to acquire antibacterial stainless steel was found, and it is proved that electrostatic effects have a significant influence on the formation of biofilms.
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Richards C, Slaimi A, O’Connor NE, Barrett A, Kwiatkowska S, Regan F. Bio-inspired Surface Texture Modification as a Viable Feature of Future Aquatic Antifouling Strategies: A Review. Int J Mol Sci 2020; 21:ijms21145063. [PMID: 32709068 PMCID: PMC7404281 DOI: 10.3390/ijms21145063] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 01/26/2023] Open
Abstract
The imitation of natural systems to produce effective antifouling materials is often referred to as “biomimetics”. The world of biomimetics is a multidisciplinary one, needing careful understanding of “biological structures”, processes and principles of various organisms found in nature and based on this, designing nanodevices and nanomaterials that are of commercial interest to industry. Looking to the marine environment for bioinspired surfaces offers researchers a wealth of topographies to explore. Particular attention has been given to the evaluation of textures based on marine organisms tested in either the laboratory or the field. The findings of the review relate to the numbers of studies on textured surfaces demonstrating antifouling potential which are significant. However, many of these are only tested in the laboratory, where it is acknowledged a very different response to fouling is observed.
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Affiliation(s)
- Chloe Richards
- DCU Water Institute, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; (C.R.); (A.B.); (S.K.)
| | - Asma Slaimi
- Insight Centre for Data Analytics, Dublin City University, Dublin 9, Ireland; (A.S.); (N.E.O.)
| | - Noel E. O’Connor
- Insight Centre for Data Analytics, Dublin City University, Dublin 9, Ireland; (A.S.); (N.E.O.)
| | - Alan Barrett
- DCU Water Institute, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; (C.R.); (A.B.); (S.K.)
| | - Sandra Kwiatkowska
- DCU Water Institute, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; (C.R.); (A.B.); (S.K.)
| | - Fiona Regan
- DCU Water Institute, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; (C.R.); (A.B.); (S.K.)
- Correspondence:
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Encinas N, Yang CY, Geyer F, Kaltbeitzel A, Baumli P, Reinholz J, Mailänder V, Butt HJ, Vollmer D. Submicrometer-Sized Roughness Suppresses Bacteria Adhesion. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21192-21200. [PMID: 32142252 PMCID: PMC7226781 DOI: 10.1021/acsami.9b22621] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 02/26/2020] [Indexed: 05/12/2023]
Abstract
Biofilm formation is most commonly combatted with antibiotics or biocides. However, proven toxicity and increasing resistance of bacteria increase the need for alternative strategies to prevent adhesion of bacteria to surfaces. Chemical modification of the surfaces by tethering of functional polymer brushes or films provides a route toward antifouling coatings. Furthermore, nanorough or superhydrophobic surfaces can delay biofilm formation. Here we show that submicrometer-sized roughness can outweigh surface chemistry by testing the adhesion of E. coli to surfaces of different topography and wettability over long exposure times (>7 days). Gram-negative and positive bacterial strains are tested for comparison. We show that an irregular three-dimensional layer of silicone nanofilaments suppresses bacterial adhesion, both in the presence and absence of an air cushion. We hypothesize that a 3D topography can delay biofilm formation (i) if bacteria do not fit into the pores of the coating or (ii) if bending of the bacteria is required to adhere. Thus, such a 3D topography offers an underestimated possibility to design antibacterial surfaces that do not require biocides or antibiotics.
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Affiliation(s)
- Noemí Encinas
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Ching-Yu Yang
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Florian Geyer
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Anke Kaltbeitzel
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Philipp Baumli
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Jonas Reinholz
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University
Mainz, Langenbeckstrasse
1, Mainz 55131, Germany
| | - Volker Mailänder
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University
Mainz, Langenbeckstrasse
1, Mainz 55131, Germany
| | - Hans-Jürgen Butt
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Doris Vollmer
- Max Planck Institute
for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
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Kreve S, Cândido Dos Reis A. Influence of the electrostatic condition of the titanium surface on bacterial adhesion: A systematic review. J Prosthet Dent 2020; 125:416-420. [PMID: 32247513 DOI: 10.1016/j.prosdent.2020.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/04/2020] [Accepted: 02/04/2020] [Indexed: 01/11/2023]
Abstract
STATEMENT OF PROBLEM Infection of a dental implant is undesirable and decreases the success rate of the dental prosthesis; however, systematic reviews on the issue are lacking. PURPOSE The purpose of this systematic review was to evaluate studies that dealt with inherent factors or those applied to the titanium surface or alloys to provide an antimicrobial action. MATERIAL AND METHODS SCOPUS, PubMed/Medline, Web of Science, EMBASE, and Science Direct databases were searched and manual searches made between June and July 2019 using the keywords "titanium," "surface," "implants," "photoelectron spectroscopy," and "fourier transform infrared spectroscopy." The criteria included in vitro studies evaluating the titanium surface and describing hydrophobicity, surface crystalline phase, nanotopography, surface charges, and their relationship with bacteria and/or osseointegration. RESULTS A comprehensive search identified 767 articles that were selected by the title and/or abstract as per the inclusion criteria. Of the 58 studies selected for full reading, 7 were used for this systematic review. Another 6 studies were added by further research, resulting in 13 articles, all in vitro studies. As the selected studies had a high heterogeneity that precluded any statistical analysis of the data, a descriptive analysis of these topics was performed: hydrophilicity, surface crystalline phase, nanotopography, and surface charges. CONCLUSIONS The articles analyzed in this systematic review suggest that hydrophilicity, crystalline phase, surface topography, and surface titanium charge, when altered, may provide an antimicrobial surface. However, the strategy used resulted in heterogeneous articles, making it impossible to demonstrate the unique effect of the electrostatic surface of titanium or titanium alloy used for implants and its effect on bacterial control.
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Affiliation(s)
- Simone Kreve
- Doctoral student, Department of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Andréa Cândido Dos Reis
- Associate Professor, Department of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil.
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Wang X, Lyu C, Wu S, Ben Y, Li X, Ge Z, Zou H, Tian D, Yu Y, Ding K. Electrophoresis-Deposited Mesoporous Graphitic Carbon Nitride Surfaces with Efficient Bactericidal Properties. ACS APPLIED BIO MATERIALS 2020; 3:2255-2262. [DOI: 10.1021/acsabm.0c00061] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaoyuan Wang
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Chao Lyu
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Songmei Wu
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Yuchen Ben
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Xiaowei Li
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Zhiyuan Ge
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Haihan Zou
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Dongyan Tian
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Yu Yu
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Kejian Ding
- School of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
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30
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Development of micropatterning polyimide films for enhanced antifouling and antibacterial properties. Colloids Surf B Biointerfaces 2020; 188:110801. [PMID: 31955014 DOI: 10.1016/j.colsurfb.2020.110801] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 12/26/2019] [Accepted: 01/13/2020] [Indexed: 12/21/2022]
Abstract
A commercial biomedical Polyimide (PI) film was topographically and chemically modified by generating micrometric periodic arrays of lines using Direct Laser Interference Patterning (DLIP) in order to improve antifouling and antibacterial properties. DLIP patterning was performed with periods from 1 μm to 10 μm. The physical modification of the surface was characterized by SEM, AFM and contact angle measurements and, the chemical composition of the ablated surfaces was analyzed by ATR-IR and XPS spectroscopies. The antibacterial effects were evaluated through the effect on Pseudomonas aeruginosa colonies growth on the LB (Luria Bertani) broth. The results showed that the laser treatment change the topography and as a consequence the chemistry surface, also that the microstructured surfaces with periods below 2 μm, exhibited a significant bacterial (P. aeruginosa) adhesion decrease compared with non-structured surfaces or with surfaces with periods higher than 2 μm. The results suggest that periodic topography only confer antifouling properties and reduction of the biofilm formation when the microstructure presents periods ranging from 1 μm to 2 μm. On the other hand, the topography that confer strong antifouling superficial properties persists at long incubation times. In that way, polymer applications in the biosciences field can be improved by a surface topography modification using a simple, single-step laser-assisted ablation method.
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31
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Kuliasha CA, Fedderwitz RL, Finlay JA, Franco SC, Clare AS, Brennan AB. Engineered Chemical Nanotopographies: Reversible Addition-Fragmentation Chain-Transfer Mediated Grafting of Anisotropic Poly(acrylamide) Patterns on Poly(dimethylsiloxane) To Modulate Marine Biofouling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:379-387. [PMID: 31829633 DOI: 10.1021/acs.langmuir.9b03117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Effectively negating the deleterious impact of marine biofouling on the world's maritime fleet in an environmentally conscientious manner presents a difficult challenge due to a variety of factors including the complexity and diversity of fouling species and the differing surface adhesion strategies. Understanding how surface properties relate to biofouling can inform and guide the development of new antibiofouling coatings to address this challenge. Herein, we report on the development of a living photopolymerization strategy used to tailor the surface properties of silicone rubber using controlled anisotropic poly(acrylamide) patterns and the resulting antibiofouling efficacy of these surfaces against zoospores of the model marine fouling organism, Ulva linza. Chemical patterns were fabricated using reversible addition-fragmentation chain-transfer (RAFT) living polymerization in conjunction with photolithography. Pattern geometries were inspired by the physical (i.e., nonchemical) Sharklet engineered microtopography system that has been shown to be effective against the same model organism. Sharklet chemical patterns and analogous parallel channels were fabricated in sizes ranging from 2 to 10 μm in the lateral dimension with tailorable feature heights ranging from tens to hundreds of nanometers. Nonpatterned, chemically grafted poly(acrylamide) silicone surfaces inhibited algal spore attachment density by 59% compared to the silicone control; however, attachment density on chemical nanotopographies was not statistically different from the control. While these results indicate that the chemical nanotopographies chosen do not represent an effective antibiofouling coating, it was found that the Sharklet pattern geometry, when sized below the 5 μm critical attachment size of the spores, significantly reduced the algal spore density compared to the equally sized channel geometry. These results indicate that specific chemical geometry of the proper sizing can impact the behavior of the algal spores and could be used to further study the mechanistic behavior of biofouling organisms.
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Affiliation(s)
- Cary A Kuliasha
- Department of Materials Science and Engineering , University of Florida , Gainesville , Florida 32611 , United States
| | - Rebecca L Fedderwitz
- Department of Materials Science and Engineering , University of Florida , Gainesville , Florida 32611 , United States
| | - John A Finlay
- School of Natural and Environmental Sciences , Newcastle University , Newcastle-upon-Tyne , NE1 7RU , U.K
| | - Sofia C Franco
- School of Natural and Environmental Sciences , Newcastle University , Newcastle-upon-Tyne , NE1 7RU , U.K
| | - Anthony S Clare
- School of Natural and Environmental Sciences , Newcastle University , Newcastle-upon-Tyne , NE1 7RU , U.K
| | - Anthony B Brennan
- Department of Materials Science and Engineering , University of Florida , Gainesville , Florida 32611 , United States
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32
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Modulating Surface Energy and Surface Roughness for Inhibiting Microbial Growth. ENGINEERED ANTIMICROBIAL SURFACES 2020. [DOI: 10.1007/978-981-15-4630-3_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Abed RMM, Muthukrishnan T, Al Khaburi M, Al-Senafi F, Munam A, Mahmoud H. Degradability and biofouling of oxo-biodegradable polyethylene in the planktonic and benthic zones of the Arabian Gulf. MARINE POLLUTION BULLETIN 2020; 150:110639. [PMID: 31706724 DOI: 10.1016/j.marpolbul.2019.110639] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/29/2019] [Accepted: 09/29/2019] [Indexed: 05/21/2023]
Abstract
Little is known about the degradability of oxo-biodegradable polyethylene (OXO-PE) and its surface fouling bacterial communities in the marine environment. The degradation of OXO-PE, PE and polyethylene terephthalate (PET) was compared at two depths (2 m and 6 m) in the Arabian Gulf. Scanning electron microcopy (SEM) revealed more fissure formation on OXO-PE and PE than on PET, indicating physical degradation. The formation of hydroxyl groups and carbonyl bonds, by Fourier-transform infrared spectroscopy (FTIR), suggests chemical degradation of OXO-PE. Plastisphere bacterial communities on OXO-PE and PE were different than on PET. Proteobacteria, Bacteriodetes and Planctomycetes were detected on all plastics, however, sequences of Alteromonas and Zoogloea were OXO-PE-specific suggesting a possible involvement of these bacterial genera in OXO-PE degradation. We conclude that OXO-PE shows increased signs of degradation with time owing to the combination of abiotic and biotic processes, and its degradation is higher in the benthic than in the planktonic zone.
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Affiliation(s)
- Raeid M M Abed
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman.
| | - Thirumahal Muthukrishnan
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman
| | - Maryam Al Khaburi
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman
| | - Fahad Al-Senafi
- Department of Marine Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat, Kuwait
| | - Abdul Munam
- Chemistry Department, College of Science, Sultan Qaboos University, P. O. Box: 36, PC 123, Al Khoud, Sultanate of Oman
| | - Huda Mahmoud
- Department of Biological Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat, Kuwait
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34
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Hui L, Xu A, Liu H. DNA-Based Nanofabrication for Antifouling Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12543-12549. [PMID: 31433657 DOI: 10.1021/acs.langmuir.9b01569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This paper reports antifouling properties of nanostructured SiO2 substrates patterned by DNA lithography. We used DNA triangle nanostructures as templates to produce triangular-shaped trenches ca. 130 nm in size on SiO2 surfaces. Using B. subtilis as a bacterial model, we found that such nanopatterned surface showed a 75% reduction in bacterial adhesion and 72% reduction in biofilm density at 35% surface coverage of the nanoscale triangular trenches. DNA-based nanofabrication can produce high-resolution designer patterns, but aligning these patterns has been one of the major technical challenges for its applications in nanoelectronics. This work demonstrates the potential of DNA-based nanofabrication in antifouling applications, where surface patterning of micro/nanostructures is required but not their precise alignment.
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Affiliation(s)
- Liwei Hui
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Anqin Xu
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Haitao Liu
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
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35
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Porous Titanium Surfaces to Control Bacteria Growth: Mechanical Properties and Sulfonated Polyetheretherketone Coatings as Antibiofouling Approaches. METALS 2019. [DOI: 10.3390/met9090995] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Here, titanium porous substrates were fabricated by a space holder technique. The relationship between microstructural characteristics (pore equivalent diameter, mean free-path between pores, roughness and contact surface), mechanical properties (Young’s modulus, yield strength and dynamic micro-hardness) and bacterial behavior are discussed. The bacterial strains evaluated are often found on dental implants: Methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa. The colony-forming units increased with the size of the spacer for both types of studied strains. An antibiofouling synthetic coating based on a sulfonated polyetheretherketone polymer revealed an effective chemical surface modification for inhibiting MRSA adhesion and growth. These findings collectively suggest that porous titanium implants designed with a pore size of 100–200 µm can be considered most suitable, assuring the best biomechanical and bifunctional anti-bacterial properties.
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36
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Muthukrishnan T, Al Khaburi M, Abed RMM. Fouling Microbial Communities on Plastics Compared with Wood and Steel: Are They Substrate- or Location-Specific? MICROBIAL ECOLOGY 2019; 78:361-374. [PMID: 30535914 DOI: 10.1007/s00248-018-1303-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 11/27/2018] [Indexed: 05/20/2023]
Abstract
Although marine biofouling has been widely studied on different substrates, information on biofouling on plastics in the Arabian Gulf is limited. Substrate- and location-specific effects were investigated by comparing the microbial communities developed on polyethylene terephthalate (PET) and polyethylene (PE) with those on steel and wood, at two locations in the Sea of Oman. Total biomass was lower on PET and PE than on steel and wood. PET had the highest bacterial abundance at both locations, whereas chlorophyll a concentrations did not vary between substrates. MiSeq 16S ribosomal RNA sequencing revealed comparable operational taxonomic unit (OTU) richness on all substrates at one location but lower numbers on PET and PE at the other location. Non-metric multidimensional scaling (NMDS) showed distinct clusters of the bacterial communities based on substrate (analysis of similarity (ANOSIM), R = 0.45-0.97, p < 0.03) and location (ANOSIM, R = 0.56, p < 0.0001). The bacterial genera Microcystis and Hydrogenophaga and the diatoms Licmophora and Mastogloia were specifically detected on plastics. Desulfovibrio and Pseudomonas spp. exhibited their highest abundance on steel and Corynebacterium spp. on wood. Scanning electron microscopy (SEM) revealed fissure formation on PET and PE, indicating physical degradation. The presence of free radicals on PET and carbonyl bonds (C=O) on PE, as revealed by Fourier transform infrared (FTIR) spectroscopy, indicated abiotic degradation while hydroxyl groups and spectral peaks for proteins and polysaccharides on PE indicated biotic degradation. We conclude that fouling microbial communities are not only substrate-specific but also location-specific and microbes developing on plastics could potentially contribute to their degradation in the marine environment.
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Affiliation(s)
- Thirumahal Muthukrishnan
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box 36, PC, 123, Al Khoud, Sultanate of Oman
| | - Maryam Al Khaburi
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box 36, PC, 123, Al Khoud, Sultanate of Oman
| | - Raeid M M Abed
- Biology Department, College of Science, Sultan Qaboos University, P. O. Box 36, PC, 123, Al Khoud, Sultanate of Oman.
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37
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A Review on Surface Modifications and Coatings on Implants to Prevent Biofilm. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2019. [DOI: 10.1007/s40883-019-00116-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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38
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Barnes M, Feit C, Grant TA, Brisbois EJ. Antimicrobial polymer modifications to reduce microbial bioburden on endotracheal tubes and ventilator associated pneumonia. Acta Biomater 2019; 91:220-234. [PMID: 31022549 DOI: 10.1016/j.actbio.2019.04.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/16/2019] [Accepted: 04/18/2019] [Indexed: 12/26/2022]
Abstract
Hospital associated infections (HAIs), infections acquired by patients during care in a hospital, remain a prevalent issue in the healthcare field. These infections often occur with the use of indwelling medical devices, such as endotracheal tubes (ETTs), that can result in ventilator-associated pneumonia (VAP). When examining the various routes of infection, VAP is associated with the highest incidence, rate of morbidity, and economic burden. Although ETTs are essential for the survival of patients requiring mechanical ventilation, their use comes with complications. The presence of an ETT in the airway impairs physiological host defense mechanisms for clearance of pathogens and provides a platform for oropharynx microorganism transport to the sterile tracheobronchial network. Antibiotics are administered to treat lower respiratory infections; however, they are not always effective and consequently can result in increased antibiotic resistance. Prophylactic approaches by altering the surface of ETTs to prevent the establishment and growth of bacteria have exhibited promising results. In addition, passive surface modifications that prevent bacterial establishment and growth, or active coatings that possess a bactericidal effect have also proven effective. In this review we aim to highlight the importance of preventing biofilm establishment on indwelling medical devices, focusing on ETTs. We will investigate successful antimicrobial modifications to ETTs and the future avenues that will ultimately decrease HAIs and improve patient care. STATEMENT OF SIGNIFICANCE: Infections that occur with indwelling medicals devices remain a constant concern in the medical field and can result in hospital-acquired infections. Specifically, ventilator associated pneumonia (VAP) occurs with the use of an endotracheal tube (ETT). Infections often require use of antibiotics and can result in patient mortality. Our review includes a summary of the recent collective work of antimicrobial ETT modifications and potential avenues for further investigations in an effort to reduce VAP associated with ETTs. Polymer modifications with antibacterial nature have been developed and tested; however, a focus on ETTs is lacking and clinical availability of new antimicrobial ETT devices is limited. Our collective work shows the successful and prospective applications to the surfaces of ETTs that can support researchers and physicians to create safer medical devices.
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Clasen A, Kesel AB. Microstructural Surface Properties of Drifting Seeds-A Model for Non-Toxic Antifouling Solutions. Biomimetics (Basel) 2019; 4:biomimetics4020037. [PMID: 31105222 PMCID: PMC6630564 DOI: 10.3390/biomimetics4020037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/02/2019] [Accepted: 05/06/2019] [Indexed: 01/25/2023] Open
Abstract
A major challenge in the shipping and marine industry is the biofouling on under water surfaces. So far, biocides have been the main remedy for the prevention of the adhesion of microorganisms that is also influenced by surface topography. In recent years, research projects have explored microstructured surfaces as a non-toxic antifouling strategy. In this study, physical factors of surfaces of seeds of 43 plant species were analyzed with regards to their antifouling effects. After exposure to cold water of the North Sea during the swarming periods of the barnacles larvae, the surface microstructures of seeds without fouling of barnacles were identified and compared with each other, using a scanning electron microscope (SEM). In order to validate the findings, selected microstructured surface structure properties were transferred to technical surfaces with a 2-component silicon system and subjected to the same conditions. The results of the analyses confirmed that drifting seeds with specific microstructural surface structure properties promote biofouling defense of epibionts. These results serve as a starting point for the development of non-toxic antifouling agents based on the interaction of microstructures and geometric shapes.
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Affiliation(s)
- Antje Clasen
- Institute of Environmental and Biotechnology, City University of Applied Sciences, 28199 Bremen, Germany.
| | - Antonia B Kesel
- Biomimetics-Innovation-Center, City University of Applied Sciences, 28199 Bremen, Germany.
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40
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Ghosh R, Swart O, Westgate S, Miller BL, Yates MZ. Antibacterial Copper-Hydroxyapatite Composite Coatings via Electrochemical Synthesis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5957-5966. [PMID: 30951314 DOI: 10.1021/acs.langmuir.9b00919] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Antibacterial copper-hydroxyapatite (Cu-HA) composite coatings on titanium were synthesized using a novel process consisting of two consecutive electrochemical reactions. In the first stage, HA nanocrystals were grown on titanium using the cathodic electrolytic synthesis. The HA-coated titanium was then used as the cathode in a second reaction stage to electrochemically reduce Cu2+ ions in solution to metallic Cu nanoparticles. Reaction conditions were found that result in nanoscale Cu particles growing on the surface of the HA crystals. The two-stage synthesis allows facile control of copper content in the HA coatings. Antibacterial activity was measured by culturing Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) in the presence of coatings having varying copper contents. The coatings displayed copper concentration-dependent antibacterial activity against both types of bacteria, likely due to the slow release of copper ions from the coatings. The observation of antibacterial activity from a relatively low loading of copper on the bioactive HA support suggests that multifunctional implant coatings can be developed to supplement or supplant prophylactic antibiotics used in implant surgery that are responsible for creating resistant bacteria strains.
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Affiliation(s)
- Rashmi Ghosh
- Department of Chemical Engineering , University of Rochester , Rochester , New York 14623 , United States
| | - Oliver Swart
- Department of Dermatology , University of Rochester , Rochester , New York 14611 , United States
| | - Sabrina Westgate
- Department of Chemical Engineering , University of Rochester , Rochester , New York 14623 , United States
| | - Benjamin L Miller
- Department of Dermatology , University of Rochester , Rochester , New York 14611 , United States
| | - Matthew Z Yates
- Department of Chemical Engineering , University of Rochester , Rochester , New York 14623 , United States
- Laboratory for Laser Energetics , University of Rochester , Rochester , New York 14627 , United States
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QCM-D characterization of time-dependence of bacterial adhesion. ACTA ACUST UNITED AC 2019; 5:100024. [PMID: 32743140 PMCID: PMC7389184 DOI: 10.1016/j.tcsw.2019.100024] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/29/2019] [Accepted: 03/29/2019] [Indexed: 12/22/2022]
Abstract
Quartz crystal microbalance with dissipation monitoring (QCM-D) is becoming an increasingly popular technique that can be employed as part of experimental and modeling investigations of bacterial adhesion. The usefulness of QCM-D derives from this technique's ability to probe binding and interactions under dynamic conditions, in real time. Bacterial adhesion is an important first step in the formation of biofilms, the control of which is relevant to industries that include shipping, water purification, packaging, and biomedical devices. However, many questions remain unanswered in the bacterial adhesion process, despite extensive research in this area. With QCM-D, multiple variables affecting bacterial adhesion can be studied, including the roles of substrate composition, chemical modification, solution ionic strength, environmental temperature, shear conditions, and time. Recent studies demonstrate the utility of QCM-D in developing new bacterial adhesion models and studying different stages of biofilm formation. We provide a review of how QCM-D has been used to study bacterial adhesion at stages ranging from the first step of bacterial adhesion to mature biofilms, and how QCM-D studies are being used to promote the development of solutions to biofilm formation.
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Ramstedt M, Ribeiro IAC, Bujdakova H, Mergulhão FJM, Jordao L, Thomsen P, Alm M, Burmølle M, Vladkova T, Can F, Reches M, Riool M, Barros A, Reis RL, Meaurio E, Kikhney J, Moter A, Zaat SAJ, Sjollema J. Evaluating Efficacy of Antimicrobial and Antifouling Materials for Urinary Tract Medical Devices: Challenges and Recommendations. Macromol Biosci 2019; 19:e1800384. [PMID: 30884146 DOI: 10.1002/mabi.201800384] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/18/2019] [Indexed: 01/05/2023]
Abstract
In Europe, the mean incidence of urinary tract infections in intensive care units is 1.1 per 1000 patient-days. Of these cases, catheter-associated urinary tract infections (CAUTI) account for 98%. In total, CAUTI in hospitals is estimated to give additional health-care costs of £1-2.5 billion in the United Kingdom alone. This is in sharp contrast to the low cost of urinary catheters and emphasizes the need for innovative products that reduce the incidence rate of CAUTI. Ureteral stents and other urinary-tract devices suffer similar problems. Antimicrobial strategies are being developed, however, the evaluation of their efficacy is very challenging. This review aims to provide considerations and recommendations covering all relevant aspects of antimicrobial material testing, including surface characterization, biocompatibility, cytotoxicity, in vitro and in vivo tests, microbial strain selection, and hydrodynamic conditions, all in the perspective of complying to the complex pathology of device-associated urinary tract infection. The recommendations should be on the basis of standard assays to be developed which would enable comparisons of results obtained in different research labs both in industry and in academia, as well as provide industry and academia with tools to assess the antimicrobial properties for urinary tract devices in a reliable way.
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Affiliation(s)
| | - Isabel A C Ribeiro
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-004, Lisbon, Portugal
| | - Helena Bujdakova
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, 81499, Bratislava 1, Slovakia
| | - Filipe J M Mergulhão
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Luisa Jordao
- Department of Environmental Health, Research and Development Unit, National Institute of Health Dr. Ricardo Jorge (INSA), Avenida Padre Cruz, 1649-016, Lisbon, Portugal
| | - Peter Thomsen
- BioModics ApS, Stengårds Alle 31A, DK-2800, Lyngby, Denmark
| | - Martin Alm
- BioModics ApS, Stengårds Alle 31A, DK-2800, Lyngby, Denmark
| | - Mette Burmølle
- Department of Biology, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Todorka Vladkova
- Department of Polymers, University of Chemical Technology and Metallurgy (UCTM), 8 Kliment Ohridski Blvd, 1756, Sofia, Bulgaria
| | - Fusun Can
- Department of Medical Microbiology, School of Medicine, Koc University, 34450, Sariyer, Istanbul, Turkey
| | - Meital Reches
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Martijn Riool
- Department of Medical Microbiology, Amsterdam UMC, Amsterdam Infection and Immunity Institute, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Alexandre Barros
- 3B's Research Group, I3Bs Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Guimarães, 4710-057, Braga, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Guimarães, 4710-057, Braga, Portugal
| | - Emilio Meaurio
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, School of Engineering, University of the Basque Country, 48940 Leina, Bizkaia, Bilbao, Spain
| | - Judith Kikhney
- Biofilmcenter, Department of Microbiology, Infectious Diseases and Immunology, Charité University Medicine Berlin, Hindenburgdamm 30, 12203, Berlin, Germany
| | - Annette Moter
- Biofilmcenter, Department of Microbiology, Infectious Diseases and Immunology, Charité University Medicine Berlin, Hindenburgdamm 30, 12203, Berlin, Germany
| | - Sebastian A J Zaat
- Department of Medical Microbiology, Amsterdam UMC, Amsterdam Infection and Immunity Institute, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Jelmer Sjollema
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
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43
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Cheng Y, Feng G, Moraru CI. Micro- and Nanotopography Sensitive Bacterial Attachment Mechanisms: A Review. Front Microbiol 2019; 10:191. [PMID: 30846973 PMCID: PMC6393346 DOI: 10.3389/fmicb.2019.00191] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 01/23/2019] [Indexed: 12/16/2022] Open
Abstract
Bacterial attachment to material surfaces can lead to the development of biofilms that cause severe economic and health problems. The outcome of bacterial attachment is determined by a combination of bacterial sensing of material surfaces by the cell and the physicochemical factors in the near-surface environment. This paper offers a systematic review of the effects of surface topography on a range of antifouling mechanisms, with a focus on how topographical scale, from micro- to nanoscale, may influence bacterial sensing of and attachment to material surfaces. A good understanding of these mechanisms can facilitate the development of antifouling surfaces based on surface topography, with applications in various sectors of human life and activity including healthcare, food, and water treatment.
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Affiliation(s)
- Yifan Cheng
- Department of Food Science, Cornell University, Ithaca, NY, United States
| | | | - Carmen I. Moraru
- Department of Food Science, Cornell University, Ithaca, NY, United States
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44
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Knowles BR, Yang D, Wagner P, Maclaughlin S, Higgins MJ, Molino PJ. Zwitterion Functionalized Silica Nanoparticle Coatings: The Effect of Particle Size on Protein, Bacteria, and Fungal Spore Adhesion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1335-1345. [PMID: 30086644 DOI: 10.1021/acs.langmuir.8b01550] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The negative impacts that arise from biological fouling of surfaces have driven the development of coatings with unique physical and chemical properties that are able to prevent interactions with fouling species. Here, we report on low-fouling hydrophilic coatings presenting nanoscaled features prepared from different size silica nanoparticles (SiNPs) functionalized with zwitterionic chemistries. Zwitterionic sulfobetaine siloxane (SB) was reacted to SiNPs ranging in size from 7 to 75 nm. Particle stability and grafting density were confirmed using dynamic light scattering and thermogravimetric analysis. Thin coatings of nanoparticles were prepared by spin-coating aqueous particle suspensions. The resulting coatings were characterized using scanning electron microscopy, atomic force microscopy, and contact angle goniometry. SB functionalized particle coatings displayed increased hydrophilicity compared to unmodified particle coating controls while increasing particle size correlated with increased coating roughness and increased surface area. Coatings of zwitterated particles demonstrated a high degree of nonspecific protein resistance, as measured by quartz crystal microgravimetry. Adsorption of bovine serum albumin and hydrophobin proteins were reduced by up to 91 and 94%, respectively. Adhesion of bacteria ( Escherichia coli) to zwitterion modified particle coatings were also significantly reduced over both short and long-term assays. Maximum reductions of 97% and 94% were achieved over 2 and 24 h assay periods, respectively. For unmodified particle coatings, protein adsorption and bacterial adhesion were generally reduced with increasing particle size. Adhesion of fungal spores to SB modified SiNP coatings was also reduced, however no clear trends in relation to particle size were demonstrated.
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Affiliation(s)
- Brianna R Knowles
- ARC Industrial Transformation Research Hub for Australian Steel Manufacturing , Wollongong , New South Wales 2522 , Australia
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus , University of Wollongong , Wollongong , New South Wales 2500 , Australia
- BlueScope Innovation Laboratories , Old Port Road , Port Kembla , New South Wales 2505 , Australia
| | - Dan Yang
- ARC Industrial Transformation Research Hub for Australian Steel Manufacturing , Wollongong , New South Wales 2522 , Australia
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus , University of Wollongong , Wollongong , New South Wales 2500 , Australia
| | - Pawel Wagner
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus , University of Wollongong , Wollongong , New South Wales 2500 , Australia
| | - Shane Maclaughlin
- ARC Industrial Transformation Research Hub for Australian Steel Manufacturing , Wollongong , New South Wales 2522 , Australia
- BlueScope Innovation Laboratories , Old Port Road , Port Kembla , New South Wales 2505 , Australia
| | - Michael J Higgins
- ARC Industrial Transformation Research Hub for Australian Steel Manufacturing , Wollongong , New South Wales 2522 , Australia
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus , University of Wollongong , Wollongong , New South Wales 2500 , Australia
| | - Paul J Molino
- ARC Industrial Transformation Research Hub for Australian Steel Manufacturing , Wollongong , New South Wales 2522 , Australia
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus , University of Wollongong , Wollongong , New South Wales 2500 , Australia
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45
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Pocivavsek L, Ye SH, Pugar J, Tzeng E, Cerda E, Velankar S, Wagner WR. Active wrinkles to drive self-cleaning: A strategy for anti-thrombotic surfaces for vascular grafts. Biomaterials 2019; 192:226-234. [PMID: 30458358 PMCID: PMC7248685 DOI: 10.1016/j.biomaterials.2018.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/24/2018] [Accepted: 11/03/2018] [Indexed: 12/16/2022]
Abstract
The inner surfaces of arteries and veins are naturally anti-thrombogenic, whereas synthetic materials placed in blood contact commonly experience thrombotic deposition that can lead to device failure or clinical complications. Presented here is a bioinspired strategy for self-cleaning anti-thrombotic surfaces using actuating surface topography. As a first test, wrinkled polydimethylsiloxane planar surfaces are constructed that can repeatedly transition between smooth and wrinkled states. When placed in contact with blood, these surfaces display markedly less platelet deposition than control samples. Second, for the specific application of prosthetic vascular grafts, the potential of using pulse pressure, i.e. the continual variation of blood pressure between systole and diastole, to drive topographic actuation was investigated. Soft cylindrical tubes with a luminal surface that transitioned between smooth and wrinkled states were constructed. Upon exposure to blood under continual pressure pulsation, these cylindrical tubes also showed reduced platelet deposition versus control samples under the same fluctuating pressure conditions. In both planar and cylindrical cases, significant reductions in thrombotic deposition were observed, even when the wrinkles had wavelengths of several tens of μm, far larger than individual platelets. We speculate that the observed thrombo-resistance behavior is attributable to a biofilm delamination process in which the bending energy within the biofilm overcomes interfacial adhesion. This novel strategy to reduce thrombotic deposition may be applicable to several types of medical devices placed into the circulatory system, particularly vascular grafts.
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Affiliation(s)
- Luka Pocivavsek
- Department of Surgery, The University of Chicago, Chicago, IL, 60637, USA.
| | - Sang-Ho Ye
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Joseph Pugar
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Edith Tzeng
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA
| | - Enrique Cerda
- Department of Physics, Universidad de Santiago de Chile, Santiago, Chile
| | - Sachin Velankar
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA; Department of Mechanical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
| | - William R Wagner
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA; Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
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46
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Yuran S, Dolid A, Reches M. Resisting Bacteria and Attracting Cells: Spontaneous Formation of a Bifunctional Peptide-Based Coating by On-Surface Assembly Approach. ACS Biomater Sci Eng 2018; 4:4051-4061. [PMID: 33418805 DOI: 10.1021/acsbiomaterials.8b00885] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Due to extension of life expectancy, millions of people suffer nowadays from bone and dental malfunctions that can only be treated by different types of implants. However, these implants tend to fail due to bacterial infection and lack of integration with the remaining tissue. Here, we demonstrate a new concept in which we use specifically designed peptides, in a "Lego-like" manner to endow multiple preprogrammed functions. We developed a bifunctional peptide-based coating that simultaneously rejects the adhesion of infecting bacteria and attracts cells that build the new connecting tissue. The peptide design contains fluorinated phenylalanine that mediates the self-assembly of the peptide into a coating that resists bacterial adhesion. It also includes an Arg-Gly-Asp (RGD) motif that attracts mammalian cells. The whole compound is attached to the surface using a third unit, the amino acid 3,4-dihydroxyphenylalanine (DOPA). This novel, yet very simple approach is significantly advantageous for practical use and synthesis. More importantly, this peptide design can serve as a general platform for generating functional coatings.
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Affiliation(s)
- Sivan Yuran
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Alona Dolid
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Meital Reches
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
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47
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Pokrowiecki R. The paradigm shift for drug delivery systems for oral and maxillofacial implants. Drug Deliv 2018; 25:1504-1515. [PMID: 29968496 PMCID: PMC6058499 DOI: 10.1080/10717544.2018.1477855] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 05/10/2018] [Accepted: 05/14/2018] [Indexed: 12/16/2022] Open
Abstract
Along with the development of nanotechnological strategies for biomaterials associated with the prevention of infections, a myriad of clinically unproven techniques have been described to date. In this work, the aim was to perform a critical analysis of the literature available concerning antibacterial biomaterials for oral implantology and to provide a practical derivation for such a purpose. As anti-adhesive strategies may affect osseointegration, they should no longer be recommended for inclusion in this class of biomaterials, despite promising results in biomedical engineering for other, non-bone load bearing organs. Targeted, antibacterial drug delivery is most likely desirable in the case of intraosseous implants. Interfering factors such as the oral cavity environment, saliva, the bacterial microbiome, as well as, the characteristics of the alveolar mucosa and peri-implant space must be taken into account when calculating the local pharmacokinetics for antibacterial coatings. Effective release is crucial for tailoring antibacterial implant longevity providing minimal inhibitory concentration (MIC) for the desired amount of time, which for oral implants, should be at least the cumulative time for the osseointegration period and functional loading period within the tissues. These parameters may differ between the implant type and its anatomical site. Also, the functional drug concentration in the peri-implant space should be calculated as the amount of the drug released from the implant surface including the concentration of the drug inactivated by biological fluids of the peri-implant space or saliva flow throughout the effective release time.
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Affiliation(s)
- Rafal Pokrowiecki
- Department of Otolaryngology and Ophtalmology, Prof. Stanislaw Popowski Voivoid Children Hospital Department of Head and Neck Surgery – Maxillofacial Surgery, Zołnierska, Olsztyn, Poland
- Private Dental Practice, Poland
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48
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Cao P, He X, Xiao J, Yuan C, Bai X. Peptide-modified stainless steel with resistance capacity of Staphylococcus aureus
biofilm formation. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6531] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pan Cao
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
- College of Mechanical Engineering; Yangzhou University; Yangzhou 255127 China
| | - Xiaoyan He
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
| | - Jinfei Xiao
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
| | - Chengqing Yuan
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
| | - Xiuqin Bai
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
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49
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Abstract
Escherichia coli and Staphylococcus aureus bacterial retention on mirror-polished and ultrashort pulse laser-textured surfaces is quantified with a new approach based on ISO standards for measurement of antibacterial performance. It is shown that both wettability and surface morphology influence antibacterial behavior, with neither superhydrophobicity nor low surface roughness alone sufficient for reducing initial retention of either tested cell type. Surface structures comprising spikes, laser-induced periodic surface structures (LIPSS) and nano-pillars are produced with 1030 nm wavelength 350 fs laser pulses of energy 19.1 μJ, 1.01 μJ and 1.46 μJ, respectively. SEM analysis, optical profilometry, shear force microscopy and wettability analysis reveal surface structures with peak separations of 20–40 μm, 0.5–0.9 μm and 0.8–1.3 μm, average areal surface roughness of 8.6 μm, 90 nm and 60 nm and static water contact angles of 160°, 119° and 140°, respectively. E. coli retention is highest for mirror-polished specimens and spikes whose characteristic dimensions are much larger than the cell size. S. aureus retention is instead found to be inhibited under the same conditions due to low surface roughness for mirror-polished samples (Sa: 30 nm) and low wettability for spikes. LIPSS and nano-pillars are found to reduce E. coli retention by 99.8% and 99.2%, respectively, and S. aureus retention by 84.7% and 79.9% in terms of viable colony forming units after two hours of immersion in bacterial broth due to both low wettability and fine surface features that limit the number of available attachment points. The ability to tailor both wettability and surface morphology via ultrashort pulsed laser processing confirms this approach as an important tool for producing the next generation of antibacterial surfaces.
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50
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Wu S, Altenried S, Zogg A, Zuber F, Maniura-Weber K, Ren Q. Role of the Surface Nanoscale Roughness of Stainless Steel on Bacterial Adhesion and Microcolony Formation. ACS OMEGA 2018; 3:6456-6464. [PMID: 30023948 PMCID: PMC6045408 DOI: 10.1021/acsomega.8b00769] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 05/28/2018] [Indexed: 05/25/2023]
Abstract
Hospital-acquired infections can cause serious complications and are a severe problem because of the increased emergence of antibiotic-resistant bacteria. Biophysical modification of the material surfaces to prevent or reduce bacteria adhesion is an attractive alternative to antibiotic treatment. Since stainless steel is a widely used material for implants and in hospital settings, in this work, we used stainless steel to investigate the effect of the material surface topographies on bacterial adhesion and early biofilm formation. Stainless steel samples with different surface roughnesses Rq in a range of 217.9-56.6 nm (Ra in a range of 172.5-45.2 nm) were fabricated via electropolishing and compared for adhesion of bacterial pathogens Pseudomonas aeruginosa and Staphylococcus aureus. It was found that the number of viable cells on the untreated rough surface was at least 10-fold lower than those on the electropolished surfaces after 4 h of incubation time for P. aeruginosa and 15-fold lower for S. aureus. Fluorescence images and scanning electron microscopy images revealed that the bacterial cells tend to adhere individually as single cells on untreated rough surfaces. In contrast, clusters of the bacterial cells (microcolonies) were observed on electropolished smooth surfaces. Our study demonstrates that nanoscale surface roughness can play an important role in restraining bacterial adhesion and formation of microcolonies.
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Affiliation(s)
- Songmei Wu
- School
of Science, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, P. R. China
| | - Stefanie Altenried
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories
for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Andi Zogg
- HESS
Medizintechnik AG, Grabenstrasse
14, 8865 Bilten, Switzerland
| | - Flavia Zuber
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories
for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Katharina Maniura-Weber
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories
for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Qun Ren
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories
for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
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