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Liu S, Zheng J, Hao L, Yegin Y, Bae M, Ulugun B, Taylor TM, Scholar EA, Cisneros-Zevallos L, Oh JK, Akbulut M. Dual-Functional, Superhydrophobic Coatings with Bacterial Anticontact and Antimicrobial Characteristics. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21311-21321. [PMID: 32023023 DOI: 10.1021/acsami.9b18928] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bacterial pathogens are responsible for millions of cases of illnesses and deaths each year throughout the world. The development of novel surfaces and coatings that effectively inhibit and prevent bacterial attachment, proliferation, and growth is one of the crucial steps for tackling this global challenge. Herein, we report a dual-functional coating for aluminum surfaces that relies on the controlled immobilization of lysozyme enzyme (muramidase) into interstitial spaces of presintered, nanostructured thin film based on ∼200 nm silica nanoparticles and the sequential chemisorption of an organofluorosilane to the available interfacial areas. The mean diameter of the resultant lysozyme microdomains was 3.1 ± 2.5 μm with an average spacing of 8.01 ± 6.8 μm, leading to a surface coverage of 15.32%. The coating had an overall root-mean-square (rms) roughness of 539 ± 137 nm and roughness factor of 1.50 ± 0.1, and demonstrated static, advancing, and receding water contact angles of 159.0 ± 1.0°, 155.4 ± 0.6°, and 154.4 ± 0.6°, respectively. Compared to the planar aluminum, the coated surfaces produced a 6.5 ± 0.1 (>99.99997%) and 4.0 ± 0.1 (>99.99%) log-cycle reductions in bacterial surfaces colonization against Gram-negative Salmonella Typhimurium LT2 and Gram-positive Listeria innocua, respectively. We anticipate that the implementation of such a coating strategy on healthcare environments and surfaces and food-contact surfaces can significantly reduce or eliminate potential risks associated with various contamination and cross-contamination scenarios.
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Affiliation(s)
- Shuhao Liu
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Jeremy Zheng
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Li Hao
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510408, People's Republic of China
| | - Yagmur Yegin
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843, United States
| | - Michael Bae
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Beril Ulugun
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Thomas Matthew Taylor
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843, United States
| | - Ethan A Scholar
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Luis Cisneros-Zevallos
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843, United States
- Department of Horticultural Sciences, Texas A&M University, College Station, Texas 77843, United States
| | - Jun Kyun Oh
- Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do 16890, Republic of Korea
| | - Mustafa Akbulut
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
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102
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Ahmadabadi HY, Yu K, Kizhakkedathu JN. Surface modification approaches for prevention of implant associated infections. Colloids Surf B Biointerfaces 2020; 193:111116. [PMID: 32447202 DOI: 10.1016/j.colsurfb.2020.111116] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 01/08/2023]
Abstract
In this highlight, we summarize the surface modification approaches for development of infection-resistant coatings for biomedical devices and implants. We discuss the relevant key and highly cited research that have been published over the last five years which report the generation of infection-resistant coatings. An important strategy utilized to prevent bacterial adhesion and biofilm formation on device/implant surface is anti-adhesive protein repellant polymeric coatings based on polymer brushes or highly hydrated hydrogel networks. Further, the attachment of antimicrobial agents that can efficiently kill bacteria on the surface while also prevent bacterial adhesion on the surface is also investigated. Other approaches include the incorporation of antimicrobial agents to the surface coating resulting in a depot of bactericides which can be released on-demand or with time to prevent bacterial colonization on the surface that kill the adhered bacteria on the surface to make surface infection resistant.
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Affiliation(s)
- Hossein Yazdani Ahmadabadi
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada; Department of Chemistry, University of British Columbia, Vancouver, BC, Canada
| | - Kai Yu
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jayachandran N Kizhakkedathu
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada; Department of Chemistry, University of British Columbia, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; School of Biomedical Engineering, University of British Columbia, Vancouver, BC, Canada.
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103
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Shemesh M, Ostrov I. Role of Bacillus species in biofilm persistence and emerging antibiofilm strategies in the dairy industry. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:2327-2336. [PMID: 31975392 DOI: 10.1002/jsfa.10285] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/28/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Biofilm-forming Bacillus species are often involved in persistent contamination and spoilage of dairy products. They therefore present a major microbiological challenge in the field of dairy food quality and safety. Due to their substantial physiological versatility, Bacillus species can survive in various parts of dairy manufacturing plants, leading to a high risk of product spoilage and potential dissemination of foodborne diseases. Furthermore, biofilm and heat-resistant spore formation make these bacteria challenging to eliminate. Thus, some strategies have been employed to remove, prevent, or delay the formation of Bacillus biofilms in the dairy industry, but with limited success. Lack of understanding of the Bacillus biofilm structure and behavior in conditions relevant to dairy-associated environments could partially account for this situation. The current paper reviews dairy-associated biofilm formation by Bacillus species, with particular attention to the role of biofilm in Bacillus species adaptation and survival in a dairy processing environment. Relevant model systems are discussed for the development of novel antimicrobial approaches to improve the quality of dairy food. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Moshe Shemesh
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), The Volcani Center, Rishon LeZion, Israel
| | - Ievgeniia Ostrov
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), The Volcani Center, Rishon LeZion, Israel
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104
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Lethongkam S, Daengngam C, Tansakul C, Siri R, Chumpraman A, Phengmak M, Voravuthikunchai SP. Prolonged inhibitory effects against planktonic growth, adherence, and biofilm formation of pathogens causing ventilator-associated pneumonia using a novel polyamide/silver nanoparticle composite-coated endotracheal tube. BIOFOULING 2020; 36:292-307. [PMID: 32367731 DOI: 10.1080/08927014.2020.1759041] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/15/2020] [Accepted: 04/19/2020] [Indexed: 06/11/2023]
Abstract
Microbial cells can rapidly form biofilm on endotracheal tubes (ETT) causing ventilator-associated pneumonia, a serious complication in patients receiving mechanical ventilation. A novel polyamide with a good balance of hydrophilic/hydrophobic moieties was used for the embedment of green-reduction silver nanoparticles (AgNPs) for the composite-coated ETT. The films were conformal with a thickness of ∼ 17 ± 3 µm accommodating high loading of 60 ± 35 nm spherical-shaped AgNPs. The coated ETT resulted in a significant difference in reducing both planktonic growth and microbial adhesion of single and mixed-species cultures, compared with uncoated ETT (p < 0.05). A time-kill assay demonstrated rapid bactericidal effects of the coating on bacterial growth and cell adhesion to ETT surface. Biofilm formation by Pseudomonas aeruginosa and Staphylococcus aureus, commonly encountered pathogens, was inhibited by > 96% after incubation for 72 h. Polyamide/AgNP composite-coated ETT provided a broad-spectrum activity against both Gram-positive and Gram-negative bacteria as well as Candida albicans and prolonged antimicrobial activity.
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Affiliation(s)
- Sakkarin Lethongkam
- Department of Microbiology, Faculty of Science and Natural Product Research Center of Excellence, Excellence Research Laboratory on Natural Products, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Chalongrat Daengngam
- Department of Physics, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Chittreeya Tansakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Ratchaneewan Siri
- Department of Physics, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Apisit Chumpraman
- Department of Microbiology, Faculty of Science and Natural Product Research Center of Excellence, Excellence Research Laboratory on Natural Products, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Manthana Phengmak
- Department of Pathology, Faculty of Medicine, Clinical Microbiology Unit, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Supayang P Voravuthikunchai
- Department of Microbiology, Faculty of Science and Natural Product Research Center of Excellence, Excellence Research Laboratory on Natural Products, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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105
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Sahranavard M, Zamanian A, Ghorbani F, Shahrezaee MH. A critical review on three dimensional-printed chitosan hydrogels for development of tissue engineering. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bprint.2019.e00063] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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106
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Awasthi AK, Gupta S, Thakur J, Gupta S, Pal S, Bajaj A, Srivastava A. Polydopamine-on-liposomes: stable nanoformulations, uniform coatings and superior antifouling performance. NANOSCALE 2020; 12:5021-5030. [PMID: 32065189 DOI: 10.1039/c9nr07770g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polydopamine (PDA), a mussel-inspired synthetic polymer, affords biocompatible and antifouling coatings on a variety of surfaces. However, the traditional protocol of preparing PDA by polymerizing dopamine (DA) under basic conditions yields physically-unstable and non-uniform coatings that are prone to delamination and exhibit compromised antifouling performance in vivo. Here, we show that the high local pH in the vicinity of vesicular self-assemblies formed by a series of acetal-based cationic amphiphiles can be exploited to conveniently polymerise DA under physiological conditions in a gradual manner without requiring any external oxidant. Two of the four PDA-liposome nanoformulations viz. PDA-L1 and PDA-L2 turned out to be highly stable physically and resisted precipitation for more than a month while the other two formulations (PDA-L3 and PDA-L4) were less stable and formed visible precipitates with time. Further, the PDA-liposome formulations had significantly improved haemocompatibility compared to that of pristine liposomes. PDA-L1 formed highly uniform, nanostructured coatings on implants like catheter, cotton and bandages that did not delaminate even after a week of continuous incubation in simulated body fluid, or on exposure to pH change and presence of proteolytic enzymes. The PDA-L1 coated catheter implants resisted biofouling by both Gram-positive and Gram-negative bacteria in vitro and also had superior in vivo performance in mice vis-à-vis the implants coated with traditional base-polymerised PDA formulation (BP-PDA). Thus, these novel liposomal PDA nanoformulations significantly improve the practical utility of PDA-based coatings for antimicrobial applications.
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Affiliation(s)
- Anand Kumar Awasthi
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Siddhi Gupta
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad-121001, Haryana, India.
| | - Jyoti Thakur
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Sakshi Gupta
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Sanjay Pal
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad-121001, Haryana, India. and Kalinga Institute of Industrial Technology, Bhubaneswar-751024, Odisha, India
| | - Avinash Bajaj
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad-121001, Haryana, India.
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
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107
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Boparai JK, Sharma PK. Mini Review on Antimicrobial Peptides, Sources, Mechanism and Recent Applications. Protein Pept Lett 2020; 27:4-16. [PMID: 31438824 PMCID: PMC6978648 DOI: 10.2174/0929866526666190822165812] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/17/2019] [Accepted: 07/24/2019] [Indexed: 02/06/2023]
Abstract
Antimicrobial peptides in recent years have gained increased interest among scientists, health professionals and the pharmaceutical companies owing to their therapeutic potential. These are low molecular weight proteins with broad range antimicrobial and immuno modulatory activities against infectious bacteria (Gram positive and Gram negative), viruses and fungi. Inability of micro-organisms to develop resistance against most of the antimicrobial peptide has made them as an efficient product which can greatly impact the new era of antimicrobials. In addition to this these peptides also demonstrates increased efficacy, high specificity, decreased drug interaction, low toxicity, biological diversity and direct attacking properties. Pharmaceutical industries are therefore conducting appropriate clinical trials to develop these peptides as potential therapeutic drugs. More than 60 peptide drugs have already reached the market and several hundreds of novel therapeutic peptides are in preclinical and clinical development. Rational designing can be used further to modify the chemical and physical properties of existing peptides. This mini review will discuss the sources, mechanism and recent therapeutic applications of antimicrobial peptides in treatment of infectious diseases.
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Affiliation(s)
- Jaspreet Kaur Boparai
- Department of Biotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Pushpender Kumar Sharma
- Department of Biotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
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108
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Urinary Catheter Coating Modifications: The Race against Catheter-Associated Infections. COATINGS 2019. [DOI: 10.3390/coatings10010023] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Urinary catheters are common medical devices, whose main function is to drain the bladder. Although they improve patients’ quality of life, catheter placement predisposes the patient to develop a catheter-associated urinary tract infection (CAUTI). The catheter is used by pathogens as a platform for colonization and biofilm formation, leading to bacteriuria and increasing the risk of developing secondary bloodstream infections. In an effort to prevent microbial colonization, several catheter modifications have been made ranging from introduction of antimicrobial compounds to antifouling coatings. In this review, we discuss the effectiveness of different coatings in preventing catheter colonization in vitro and in vivo, the challenges in fighting CAUTIs, and novel approaches targeting host–catheter–microbe interactions.
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109
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Inhibiting bacterial colonization on catheters: Antibacterial and antibiofilm activities of bacteriocins from Lactobacillus plantarum SJ33. J Glob Antimicrob Resist 2019; 19:85-92. [DOI: 10.1016/j.jgar.2019.02.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 02/27/2019] [Accepted: 02/27/2019] [Indexed: 01/08/2023] Open
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110
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Zhang Z, Han X. Polymer antibacterial agent immobilized polyethylene films as efficient antibacterial cling films. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110088. [DOI: 10.1016/j.msec.2019.110088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 06/08/2019] [Accepted: 08/14/2019] [Indexed: 12/14/2022]
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111
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Dong N, Wang C, Li X, Guo Y, Li X. Simplified Head-to-Tail Cyclic Polypeptides as Biomaterial-Associated Antimicrobials with Endotoxin Neutralizing and Anti-Inflammatory Capabilities. Int J Mol Sci 2019; 20:ijms20235904. [PMID: 31775224 PMCID: PMC6928678 DOI: 10.3390/ijms20235904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/15/2019] [Accepted: 11/20/2019] [Indexed: 12/21/2022] Open
Abstract
The therapeutic application of antimicrobial peptides (AMPs), a potential type of peptide-based biomaterial, is impeded by their poor antimicrobial activity and potential cytotoxicity as a lack of understanding of their structure–activity relationships. In order to comprehensively enhance the antibacterial and clinical application potency of AMPs, a rational approach was applied to design amphiphilic peptides, including head-to-tail cyclic, linear and D-proline antimicrobial peptides using the template (IR)nP(IR)nP (n = 1, 2 and 3). Results showed that these amphiphilic peptides demonstrated antimicrobial activity in a size-dependent manner and that cyclic peptide OIR3, which contained three repeating units (IR)3, had greater antimicrobial potency and cell selectivity than liner peptide IR3, DIR3 with D-Pro and gramicidin S (GS). Surface plasmon resonance and endotoxin neutralization assays indicated that OIR3 had significant endotoxin neutralization capabilities, which suggested that the effects of OIR3 were mediated by binding to lipopolysaccharides (LPS). Using fluorescence spectrometry and electron microscopy, we found that OIR3 strongly promoted membrane disruption and thereby induced cell lysis. In addition, an LPS-induced inflammation assay showed that OIR3 inhibited the pro-inflammatory factor TNF-α in RAW264.7 cells. OIR3 was able to reduce oxazolone-induced skin inflammation in allergic dermatitis mouse model via the inhibition of TNF-α, IL-1β and IL-6 mRNA expression. Collectively, the engineered head-to-tail cyclic peptide OIR3 was considerable potential candidate for use as a clinical therapeutic for the treatment of bacterial infections and skin inflammation.
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Affiliation(s)
- Na Dong
- The Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (N.D.); (C.W.); (X.L.)
| | - Chensi Wang
- The Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (N.D.); (C.W.); (X.L.)
| | - Xinran Li
- The Laboratory of Molecular Nutrition and Immunity, Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (N.D.); (C.W.); (X.L.)
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Correspondence: ; Tel.: +(86-010)-6273-3900
| | - Xiaoli Li
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science, Northeast Forestry University, Harbin 150040, China;
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112
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Tran C, Yasir M, Dutta D, Eswaramoorthy N, Suchowerska N, Willcox M, McKenzie DR. Single Step Plasma Process for Covalent Binding of Antimicrobial Peptides on Catheters To Suppress Bacterial Adhesion. ACS APPLIED BIO MATERIALS 2019; 2:5739-5748. [DOI: 10.1021/acsabm.9b00776] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Clara Tran
- School of Physics, The University of Sydney, Camperdown, New South Wales 2006, Australia
| | - Muhammad Yasir
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - Debarun Dutta
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- Optometry and Vision Science, Aston Optometry School, Aston University, Birmingham, U.K
| | - Nithya Eswaramoorthy
- School of Physics, The University of Sydney, Camperdown, New South Wales 2006, Australia
| | | | - Mark Willcox
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - David R. McKenzie
- School of Physics, The University of Sydney, Camperdown, New South Wales 2006, Australia
- VectorLab, Chris O’Brien Lifehouse, Camperdown, New South Wales, Australia
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113
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Hoque J, Ghosh S, Paramanandham K, Haldar J. Charge-Switchable Polymeric Coating Kills Bacteria and Prevents Biofilm Formation in Vivo. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39150-39162. [PMID: 31550124 DOI: 10.1021/acsami.9b11453] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Preventing bacterial biofilm formation on medical devices and implants in vivo still remains a daunting task. Current antibacterial coatings to combat implant-associated infections are generally composed of toxic metals or nondegradable polymers and involve multistep surface modifications. Here, we present a charge-switchable antibacterial and antibiofilm coating based on water-insoluble cationic hydrophobic polymers that are soluble in organic solvents and can be noncovalently coated onto different surfaces. Toward this, a library of quaternary polyethylenimine (QPEI) polymers with an amide or ester group in their pendant alkyl chain was developed. These QPEIs are shown to hydrolyze from active cationic to nontoxic zwitterionic polymers under acidic or enzymatic conditions. Notably, polymers with both zwitterionic and cationic groups, obtained upon partial hydrolysis of QPEIs, are shown to retain their antibacterial activity with much lower toxicity toward mammalian cells. Furthermore, the zwitterionic polymer, a fully hydrolyzed product of the QPEIs, is shown to be nontoxic to mammalian cells in vitro as well as in vivo. The QPEIs, when coated onto surfaces, kill bacteria and prevent formation of biofilms. In an in vivo mice model, the QPEI-coated medical grade catheter is shown to reduce methicillin-resistant Staphylococcus aureus contamination both on the catheter surface and in the adjacent tissues (99.99% reduction compared to a noncoated catheter). Additionally, biofilm formation is inhibited on the catheter surface with negligible inflammation in the adjacent tissue. The above results thus highlight the importance of these polymers to be used as effective antibacterial coatings in biomedical applications.
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Affiliation(s)
| | | | - Krishnamoorthy Paramanandham
- National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI) Ramagondanahalli , Yelahanka, Bengaluru 560064 , India
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114
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Yan W, Ramakrishna SN, Romio M, Benetti EM. Bioinert and Lubricious Surfaces by Macromolecular Design. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13521-13535. [PMID: 31532689 DOI: 10.1021/acs.langmuir.9b02316] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The modification of a variety of biomaterials and medical devices often encompasses the generation of biopassive and lubricious layers on their exposed surfaces. This is valid when the synthetic supports are required to integrate within physiological media without altering their interfacial composition and when the minimization of shear stress prevents or reduces damage to the surrounding environment. In many of these cases, hydrophilic polymer brushes assembled from surface-interacting polymer adsorbates or directly grown by surface-initiated polymerizations (SIP) are chosen. Although growing efforts by polymer chemists have been focusing on varying the composition of polymer brushes in order to attain increasingly bioinert and lubricious surfaces, the precise modulation of polymer architecture has simultaneously enabled us to substantially broaden the tuning potential for the above-mentioned properties. This feature article concentrates on reviewing this latter strategy, comparatively analyzing how polymer brush parameters such as molecular weight and grafting density, the application of block copolymers, the introduction of branching and cross-links, or the variation of polymer topology beyond the simple, linear chains determine highly technologically relevant properties, such as biopassivity and lubrication.
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Affiliation(s)
- Wenqing Yan
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Shivaprakash N Ramakrishna
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Matteo Romio
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
| | - Edmondo M Benetti
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
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115
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Pinto IB, dos Santos Machado L, Meneguetti BT, Nogueira ML, Espínola Carvalho CM, Roel AR, Franco OL. Utilization of antimicrobial peptides, analogues and mimics in creating antimicrobial surfaces and bio-materials. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107237] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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116
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Liu L, Shi H, Yu H, Zhou R, Yin J, Luan S. One-step hydrophobization of tannic acid for antibacterial coating on catheters to prevent catheter-associated infections. Biomater Sci 2019; 7:5035-5043. [PMID: 31535105 DOI: 10.1039/c9bm01223k] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Catheter-associated infections (CAIs) caused by bacterial colonization are significant problems in clinics. Thus, effective antibacterial coatings for biomedical catheters to prevent bacterial infections are urgently needed. Ideal coatings should include the advantage of potent antibacterial properties and being easily and economically modified on the catheter surface. Due to their advantages of adhesive capability on various substrates, an increasing number of coatings based on plant polyphenols have been developed. However, the hydrophilicity of plant polyphenols limits their utilization in coatings. Herein, hydrophobic tannic acid (TA) was synthesized via the one-step electrostatic assembly of TA and benzalkonium chloride (BAC) with the green solvent water as the medium. The as-prepared hydrophobic TA (TBA) facilely formed a stable and colorless coating on the luminal and outer surface of biomedical catheters with broad-spectrum antibacterial activity and biocompatiblity. It was demonstrated that the TBA-coated surfaces displayed excellent bactericidal activity toward Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli), and more than 99% of the above bacteria were killed by the TBA-coated films. The test of the coated catheters in vitro also showed the excellent antibacterial activity of both the outer and luminal surfaces of the catheter. Moreover, in an in vivo mouse model, the coated catheters relatively prevented bacterial colonization compared to the uncoated catheters. Meantime, no significant cytotoxicity and host response for Cell Counting Kit-8 (CCK-8) and tissue compatibility in vivo were observed, indicating the better biocompatibility of the TBA coating. This preparation method overcomes the limitation of the traditional hydrophilic tannic acid as a coating and provides a new method for preventing medical indwelling device-associated infections.
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Affiliation(s)
- Lin Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China and University of science and Technology of China, Hefei, 230026, PR China
| | - Hengchong Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Huan Yu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China and University of science and Technology of China, Hefei, 230026, PR China
| | - Rongtao Zhou
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Jinghua Yin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China and National Engineering Laboratory for Medical Implantable Devices, WEGO Holding Company Limited, Weihai 264210, People's Republic of China.
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China and University of science and Technology of China, Hefei, 230026, PR China and National Engineering Laboratory for Medical Implantable Devices, WEGO Holding Company Limited, Weihai 264210, People's Republic of China.
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117
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Vernen F, Harvey PJ, Dias SA, Veiga AS, Huang YH, Craik DJ, Lawrence N, Troeira Henriques S. Characterization of Tachyplesin Peptides and Their Cyclized Analogues to Improve Antimicrobial and Anticancer Properties. Int J Mol Sci 2019; 20:E4184. [PMID: 31455019 PMCID: PMC6747087 DOI: 10.3390/ijms20174184] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/21/2019] [Accepted: 08/21/2019] [Indexed: 02/07/2023] Open
Abstract
Tachyplesin I, II and III are host defense peptides from horseshoe crab species with antimicrobial and anticancer activities. They have an amphipathic β-hairpin structure, are highly positively-charged and differ by only one or two amino acid residues. In this study, we compared the structure and activity of the three tachyplesin peptides alongside their backbone cyclized analogues. We assessed the peptide structures using nuclear magnetic resonance (NMR) spectroscopy, then compared the activity against bacteria (both in the planktonic and biofilm forms) and a panel of cancerous cells. The importance of peptide-lipid interactions was examined using surface plasmon resonance and fluorescence spectroscopy methodologies. Our studies showed that tachyplesin peptides and their cyclic analogues were most potent against Gram-negative bacteria and melanoma cell lines, and showed a preference for binding to negatively-charged lipid membranes. Backbone cyclization did not improve potency, but improved peptide stability in human serum and reduced toxicity toward human red blood cells. Peptide-lipid binding affinity, orientation within the membrane, and ability to disrupt lipid bilayers differed between the cyclized peptide and the parent counterpart. We show that tachyplesin peptides and cyclized analogues have similarly potent antimicrobial and anticancer properties, but that backbone cyclization improves their stability and therapeutic potential.
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Affiliation(s)
- Felicitas Vernen
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Peta J Harvey
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Susana A Dias
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Ana Salomé Veiga
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Yen-Hua Huang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - David J Craik
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Nicole Lawrence
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Sónia Troeira Henriques
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia.
- School of Biomedical Sciences, Faculty of Health, Institute of Health & Biomedical Innovation, Queensland University of Technology, Translational Research Institute, Brisbane, Queensland 4102, Australia.
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118
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Green fabrication of anti-bacterial biofilm layer on endotracheal tubing using silver nanoparticles embedded in polyelectrolyte multilayered film. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:53-63. [DOI: 10.1016/j.msec.2019.03.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/26/2019] [Accepted: 03/18/2019] [Indexed: 02/07/2023]
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119
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Torres MD, Sothiselvam S, Lu TK, de la Fuente-Nunez C. Peptide Design Principles for Antimicrobial Applications. J Mol Biol 2019; 431:3547-3567. [DOI: 10.1016/j.jmb.2018.12.015] [Citation(s) in RCA: 184] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 12/19/2018] [Accepted: 12/22/2018] [Indexed: 02/08/2023]
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120
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Prevention of urinary catheter-associated infections by coating antimicrobial peptides from crowberry endophytes. Sci Rep 2019; 9:10753. [PMID: 31341199 PMCID: PMC6656713 DOI: 10.1038/s41598-019-47108-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 06/24/2019] [Indexed: 11/08/2022] Open
Abstract
Urinary catheters are extensively used in hospitals, being responsible for about 75% of hospital-acquired infections. In this work, a de novo designed antimicrobial peptide (AMP) Chain201D was studied in the context of urinary catheter-associated infections. Chain201D showed excellent antimicrobial activity against relevant ATCC strains and clinical isolates of bacteria and yeast and demonstrated high stability in a wide range of temperatures, pH and salt concentrations. Moreover, the bactericidal activity of Chain201D immobilized on a model surface was studied against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), some of the most prevalent strains found in urinary catheter-associated infections. Chain201D was successfully tethered to ((1-mercapto-11-undecyl)-(tetra(ethylene glycol) (EG4)) terminated self-assembled monolayers (SAMs), (EG4-SAMs), activated by 1,1'-Carbonyldiimidazole (CDI) at different concentrations. Chain201D surfaces can bind and kill by contact a high percentage of adherent bacteria. These achievements are obtained without any peptide modification (for chemoselective conjugation) and without the use of a spacer. Moreover, increased amounts of immobilized AMP lead to higher numbers of adhered/dead bacteria, revealing a concentration-dependent behaviour and demonstrating that Chain201D has excellent potential for developing antimicrobial urinary catheters.
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121
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Acosta S, Quintanilla L, Alonso M, Aparicio C, Rodríguez-Cabello JC. Recombinant AMP/Polypeptide Self-Assembled Monolayers with Synergistic Antimicrobial Properties for Bacterial Strains of Medical Relevance. ACS Biomater Sci Eng 2019; 5:4708-4716. [DOI: 10.1021/acsbiomaterials.9b00247] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sergio Acosta
- Bioforge lab, CIBER-BBN, Edificio LUCIA, University of Valladolid, Paseo Belén 19, Valladolid 47011, Spain
| | - Luis Quintanilla
- Bioforge lab, CIBER-BBN, Edificio LUCIA, University of Valladolid, Paseo Belén 19, Valladolid 47011, Spain
| | - Matilde Alonso
- Bioforge lab, CIBER-BBN, Edificio LUCIA, University of Valladolid, Paseo Belén 19, Valladolid 47011, Spain
| | - Conrado Aparicio
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-250A Moos Tower, 515 Delaware Street Southeast, Minneapolis, Minnesota 55455, United States
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122
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Alves D, Vaz AT, Grainha T, Rodrigues CF, Pereira MO. Design of an Antifungal Surface Embedding Liposomal Amphotericin B Through a Mussel Adhesive-Inspired Coating Strategy. Front Chem 2019; 7:431. [PMID: 31275922 PMCID: PMC6591271 DOI: 10.3389/fchem.2019.00431] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/27/2019] [Indexed: 01/19/2023] Open
Abstract
Microbial colonization of urinary catheters remains a serious problem for medicine as it often leads to biofilm formation and infection. Among the approaches reported to deal with this problem, surfaces functionalization to render them with antimicrobial characteristics, comprises the most promising one. Most of these strategies, however, are designed to target bacterial biofilms, while fungal biofilms are much less taken into account. In real-life settings, fungi will be inevitably found in consortium with bacteria, especially in the field of biomaterials. The development of antifungal coating strategies to be combined with antibacterial approaches will be pivotal for the fight of biomaterial-associated infections. The main goal of the present study was, therefore, to engineer an effective strategy for the immobilization of liposomal amphotericin B (LAmB) on polydimethylsiloxane (PDMS) surfaces to prevent Candida albicans colonization. Immobilization was performed using a two-step mussel-inspired coating strategy, in which PDMS is first immersed in dopamine solution. Its polymerization results in the deposition of a thin adherent film, called polydopamine (pDA), which allowed the incorporation of LAmB, afterwards. Different concentrations of LAmB were screened in order to obtain a contact-killing surface with no release of LAmB. Surface characterization confirmed the polymerization of dopamine and further functionalization with LAmB yielded surfaces with less roughness and more hydrophilic features. The proposed coating strategy rendered the surfaces of PDMS with the ability to prevent the attachment of C. albicans and kill the adherent cells, without toxicity toward mammalian cells. Overall results showed that LAmB immobilization on a surface retained its antifungal activity and reduced toxicity, holding therefore a great potential to be applied for the design of urinary catheters. Since the sessile communities commonly found associated to these devices exhibit a polymicrobial nature, the next challenge will be to co-immobilize LAmB with antibacterial agents to prevent the establishment of catheter-associated urinary tract infections (CAUTI).
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Affiliation(s)
- Diana Alves
- Laboratório de Investigação em Biofilmes Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Ana Teresa Vaz
- Laboratório de Investigação em Biofilmes Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Tânia Grainha
- Laboratório de Investigação em Biofilmes Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Célia F Rodrigues
- Laboratório de Investigação em Biofilmes Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Maria Olívia Pereira
- Laboratório de Investigação em Biofilmes Rosário Oliveira (LIBRO), Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
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123
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Zhang S, Wang L, Liang X, Vorstius J, Keatch R, Corner G, Nabi G, Davidson F, Gadd GM, Zhao Q. Enhanced Antibacterial and Antiadhesive Activities of Silver-PTFE Nanocomposite Coating for Urinary Catheters. ACS Biomater Sci Eng 2019; 5:2804-2814. [DOI: 10.1021/acsbiomaterials.9b00071] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Shuai Zhang
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
| | - Liyun Wang
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
| | - Xinjin Liang
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom
| | - Jan Vorstius
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
| | - Robert Keatch
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
| | - George Corner
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
| | - Ghulam Nabi
- Academic Section of Urology, School of Medicine, Ninewells Hospital, Dundee, DD1 9SY, United Kingdom
| | - Fordyce Davidson
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
| | - Geoffrey Michael Gadd
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom
| | - Qi Zhao
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
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124
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Benetti EM, Spencer ND. Using Polymers to Impart Lubricity and Biopassivity to Surfaces: Are These Properties Linked? Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900071] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Edmondo M. Benetti
- Laboratory for Surface Science and Technology, Department of MaterialsETH Zurich Vladimir-Prelog-Weg 5 CH-8093 Zurich Switzerland
| | - Nicholas D. Spencer
- Laboratory for Surface Science and Technology, Department of MaterialsETH Zurich Vladimir-Prelog-Weg 5 CH-8093 Zurich Switzerland
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125
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Sadrearhami Z, Shafiee FN, Ho KKK, Kumar N, Krasowska M, Blencowe A, Wong EHH, Boyer C. Antibiofilm Nitric Oxide-Releasing Polydopamine Coatings. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7320-7329. [PMID: 30688429 DOI: 10.1021/acsami.8b16853] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The growing number of patient morbidity related to nosocomial infections has placed an importance on the development of new antibacterial coatings for medical devices. Here, we utilize the versatile adhesion property of polydopamine (pDA) to design an antibacterial coating that possesses low-fouling and nitric oxide (NO)-releasing capabilities. To demonstrate this, glass substrates were functionalized with pDA via immersion in alkaline aqueous solution containing dopamine, followed by grafting of low-fouling polymer (poly(ethylene glycol) (PEG)) via Michael addition and subsequent formation of N-diazeniumdiolate functionalities (NO precursors) by purging with NO gas. X-ray photoelectron spectroscopy confirmed the successful grafting of PEG and formation of N-diazeniumdiolate on polydopamine-coated substrates. NO release from the coating was observed over 2 days, and NO loading is tunable by the pDA film thickness. The antibacterial efficiency of the coatings was assessed using Gram-negative Pseudomonas aeruginosa (i.e., wild-type PAO1 and multidrug-resistant PA37) and Gram-positive Staphylococcus aureus (ATCC 29213). The NO-releasing PEGylated pDA film inhibited biofilm attachment by 96 and 70% after exposure to bacterial culture solution for 24 and 36 h, respectively. In contrast, films that do not contain NO failed to prevent biofilm formation on the surfaces at these time points. Furthermore, this coating also showed 99.9, 97, and 99% killing efficiencies against surface-attached PAO1, PA37, and S. aureus bacteria. Overall, the combination of low-fouling PEG and antibacterial activity of NO in pDA films makes this coating a potential therapeutic option to inhibit biofilm formation on medical devices.
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Affiliation(s)
| | | | | | | | - Marta Krasowska
- Future Industries Institute , The University of South Australia , Mawson Lakes , SA 5095 , Australia
- School of Information Technology and Mathematical Sciences , University of South Australia , Mawson Lakes Campus , Mawson Lakes , SA 5095 , Australia
| | - Anton Blencowe
- Future Industries Institute , The University of South Australia , Mawson Lakes , SA 5095 , Australia
- School of Pharmacy and Medical Sciences , University of South Australia , Adelaide , SA 5000 , Australia
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126
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Yadav K, Kumar S, Mishra D, Asad M, Mitra M, Yavvari PS, Gupta S, Vedantham M, Ranga P, Komalla V, Pal S, Sharma P, Kapil A, Singh A, Singh N, Srivastava A, Thukral L, Bajaj A. Deciphering the Role of Intramolecular Networking in Cholic Acid–Peptide Conjugates on the Lipopolysaccharide Surface in Combating Gram-Negative Bacterial Infections. J Med Chem 2019; 62:1875-1886. [DOI: 10.1021/acs.jmedchem.8b01357] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Kavita Yadav
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
- Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Sandeep Kumar
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
- Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Deepakkumar Mishra
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Mohammad Asad
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Madhurima Mitra
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Prabhu S. Yavvari
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal 462030, Madhya Pradesh, India
| | - Siddhi Gupta
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Madhukar Vedantham
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Pavit Ranga
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Varsha Komalla
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Sanjay Pal
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
- Kalinga Institute of Industrial Technology, Bhubaneswar 751024, Odisha, India
| | - Priyanka Sharma
- Department of Microbiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Arti Kapil
- Department of Microbiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Archana Singh
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
| | - Nirpendra Singh
- Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal 462030, Madhya Pradesh, India
| | - Lipi Thukral
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
| | - Avinash Bajaj
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Science Cluster, Faridabad 121001, Haryana, India
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127
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Scotland KB, Lo J, Grgic T, Lange D. Ureteral stent-associated infection and sepsis: pathogenesis and prevention: a review. BIOFOULING 2019; 35:117-127. [PMID: 30732463 DOI: 10.1080/08927014.2018.1562549] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 11/10/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
Ureteral stents are commonly used devices in hospital settings. However, their usage is often complicated by associated urinary tract infections as a result of bacterial adhesion onto the indwelling implant surfaces, followed by the formation of layers of biofilm. Once formed, the biofilm is exceedingly difficult to remove, potentially leading to further morbidity and even urosepsis. Urosepsis, where pathogens from the urinary tract enter the bloodstream, has a mortality rate of up to 50% of severely infected patients. Hence, it is important to understand its pathogenesis. In this review, ureteral stent-associated urinary tract infection and urosepsis will be addressed. In particular, the bacterial mechanisms involved, as well as the prevention and treatment of these infections will be discussed.
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Affiliation(s)
- Kymora B Scotland
- a Department of Urologic Sciences , The Stone Centre at Vancouver General Hospital, University of British Columbia , Vancouver , BC , Canada
| | - Joey Lo
- a Department of Urologic Sciences , The Stone Centre at Vancouver General Hospital, University of British Columbia , Vancouver , BC , Canada
| | - Thomas Grgic
- a Department of Urologic Sciences , The Stone Centre at Vancouver General Hospital, University of British Columbia , Vancouver , BC , Canada
| | - Dirk Lange
- a Department of Urologic Sciences , The Stone Centre at Vancouver General Hospital, University of British Columbia , Vancouver , BC , Canada
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128
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Shahrour H, Ferrer-Espada R, Dandache I, Bárcena-Varela S, Sánchez-Gómez S, Chokr A, Martinez-de-Tejada G. AMPs as Anti-biofilm Agents for Human Therapy and Prophylaxis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1117:257-279. [PMID: 30980362 DOI: 10.1007/978-981-13-3588-4_14] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Microbial cells show a strong natural tendency to adhere to surfaces and to colonize them by forming complex communities called biofilms. In this growth mode, biofilm-forming cells encase themselves inside a dense matrix which efficiently protects them against antimicrobial agents and effectors of the immune system. Moreover, at the physiological level, biofilms contain a very heterogeneous cell population including metabolically inactive organisms and persisters, which are highly tolerant to antibiotics. The majority of human infectious diseases are caused by biofilm-forming microorganisms which are responsible for pathologies such as cystic fibrosis, infective endocarditis, pneumonia, wound infections, dental caries, infections of indwelling devices, etc. AMPs are well suited to combat biofilms because of their potent bactericidal activity of broad spectrum (including resting cells and persisters) and their ability to first penetrate and then to disorganize these structures. In addition, AMPs frequently synergize with antimicrobial compounds and were recently reported to repress the molecular pathways leading to biofilm formation. Finally, there is a very active research to develop AMP-containing coatings that can prevent biofilm formation by killing microbial cells on contact or by locally releasing their active principle. In this chapter we will describe these strategies and discuss the perspectives of the use of AMPs as anti-biofilm agents for human therapy and prophylaxis.
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Affiliation(s)
- Hawraa Shahrour
- Department of Microbiology and Parasitology, University of Navarra, Pamplona, Spain.,Laboratory of Microbiology, Department of Life & Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat campus, Beirut, Lebanon.,Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut, Lebanon
| | - Raquel Ferrer-Espada
- Department of Microbiology and Parasitology, University of Navarra, Pamplona, Spain.,Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Israa Dandache
- Laboratory of Microbiology, Department of Life & Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat campus, Beirut, Lebanon.,Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut, Lebanon
| | | | | | - Ali Chokr
- Laboratory of Microbiology, Department of Life & Earth Sciences, Faculty of Sciences I, Lebanese University, Hadat campus, Beirut, Lebanon.,Platform of Research and Analysis in Environmental Sciences (PRASE), Doctoral School of Sciences and Technologies, Lebanese University, Hadat Campus, Beirut, Lebanon
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129
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Mei Y, Yu K, Lo JCY, Takeuchi LE, Hadjesfandiari N, Yazdani-Ahmadabadi H, Brooks DE, Lange D, Kizhakkedathu JN. Polymer-Nanoparticle Interaction as a Design Principle in the Development of a Durable Ultrathin Universal Binary Antibiofilm Coating with Long-Term Activity. ACS NANO 2018; 12:11881-11891. [PMID: 30354054 DOI: 10.1021/acsnano.8b05512] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bacterial attachment and biofilm formation pose major challenges to the optimal performance of indwelling devices. Current coating methods have significant deficiencies including the lack of long-term activity, easy of application, and adaptability to diverse materials. Here we describe a coating method that could potentially overcome such limitations and yield an ultrathin coating with long-term antibiofilm activity. We utilized the interaction between polydopamine (PDA) nanoaggregates/nanoparticles and ultrahigh molecular weight (uHMW) hydrophilic polymers to generate stable coatings with broad spectrum antibiofilm activity. We used a short-term bacterial adhesion assay as an initial screening method to identify coating compositions that give superior performance and found that only selected polymers (out of 13 different types) and molecular weights gave promising antifouling activity. Optimization of PDA self-assembly, polymer-PDA interaction, and deposition on the surface using uHMW poly( N,N-dimethylacrylamide) (PDMA) (∼795 kDa) resulted in a stable ultrathin coating (∼19 nm) with excellent antifouling and antibiofilm properties (>4 weeks) against diverse bacteria (∼108 CFU/mL) in shaking and flow conditions. The ultrathin coating is effective on diverse substrates including metals and polymeric substrates. The uHMW PDMA is stabilized in the coating via supramolecular interactions with PDA and generated a surface that is highly enriched with PDMA in aqueous conditions. Based on the surface analyses data, we also propose a mechanism for the stable coating formation. The molecular weight of PDMA is a crucial factor, and only uHMW polymers generate this property. An attractive feature of the coating is that it does not contain any antimicrobial agents and has the potential to prevent biofilm formation for diverse applications both short- and long-term.
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Affiliation(s)
- Yan Mei
- Centre for Blood Research , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Pathology and Laboratory Medicine , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
| | - Kai Yu
- Centre for Blood Research , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Pathology and Laboratory Medicine , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
| | - Joey C Y Lo
- Department of Urologic Sciences , University of British Columbia , Vancouver , British Columbia V5Z 1M9 , Canada
| | - Lily E Takeuchi
- Centre for Blood Research , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Pathology and Laboratory Medicine , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
| | - Narges Hadjesfandiari
- Centre for Blood Research , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
| | - Hossein Yazdani-Ahmadabadi
- Centre for Blood Research , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
| | - Donald E Brooks
- Centre for Blood Research , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Pathology and Laboratory Medicine , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
| | - Dirk Lange
- Department of Urologic Sciences , University of British Columbia , Vancouver , British Columbia V5Z 1M9 , Canada
| | - Jayachandran N Kizhakkedathu
- Centre for Blood Research , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Pathology and Laboratory Medicine , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
- Department of Chemistry , University of British Columbia , Vancouver , British Columbia V6T 1Z3 , Canada
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130
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Affiliation(s)
- Donald E. Fry
- MPA Healthcare Solutions, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, and Department of Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico
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131
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Yu H, Liu L, Yang H, Zhou R, Che C, Li X, Li C, Luan S, Yin J, Shi H. Water-Insoluble Polymeric Guanidine Derivative and Application in the Preparation of Antibacterial Coating of Catheter. ACS APPLIED MATERIALS & INTERFACES 2018; 10:39257-39267. [PMID: 30346131 DOI: 10.1021/acsami.8b13868] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Antibacterial coatings have been considered as an effective method for preventing the implant-associated infections caused by the bacterial colonization. In this study, we report a water-insoluble polyelectrolyte-surfactant complex, poly(hexamethylene biguanide) hydrochloride-sodium stearate (PHMB-SS) that can be facilely coated onto the surfaces of biomedical catheter and kill the bacteria by releasing the PHMB and prevent the generation of the biofilm. The PHMB-SS-coated surfaces showed better bactericidal activity toward Staphylococcus aureus and Escherichia coli. The PHMB-SS-coated catheters could not only relatively prevent the bacterial colonization in vitro but also in an implant-associated bacterial infection animal model in vivo. Moreover, no significant cytotoxicity and host response were observed in vitro and in vivo, indicating the high biocompatibility of the coating. The water-insoluble antibacterial coating reported in this work represents a novel approach to build a simple and effective coating for the prevention of device-associated infections.
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Affiliation(s)
- Huan Yu
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Lin Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Huawei Yang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Rongtao Zhou
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Chaoyue Che
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Xue Li
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Chunsheng Li
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P. R. China
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Jinghua Yin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Hengchong Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
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132
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Shtreimer Kandiyote N, Mohanraj G, Mao C, Kasher R, Arnusch CJ. Synergy on Surfaces: Anti-Biofouling Interfaces Using Surface-Attached Antimicrobial Peptides PGLa and Magainin-2. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11147-11155. [PMID: 30122046 DOI: 10.1021/acs.langmuir.8b01617] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The synergistic effect of antimicrobial compounds is an important phenomenon that can increase the potency of treatment and might be useful against the formation of biofilms on surfaces. A strong inhibition of microbial viability on surfaces can potentially delay the development of biofilms on treated surfaces, thereby enhancing the performance of water-purification technologies and medical devices, for example, to prevent hospital-acquired infections. However, the synergistic effects of surface-immobilized antimicrobial peptides (AMPs) have not yet been reported. Here, we demonstrate the synergistic antimicrobial effects of the AMPs PGLa and magainin-2 on modified reverse-osmosis (RO) membranes. These AMPs are known to act synergistically in the free state, but their antimicrobial synergistic effects have not yet been reported in a surface-immobilized state. The AMPs were functionalized with alkyne linkers and covalently attached to RO membranes modified with azides, using a click chemistry reaction. The resulting RO membranes showed reduced contact angles, indicating increased wettability. X-ray photoelectron spectroscopy confirmed the presence of the two peptides on the membranes via changes in the amounts of carbon, oxygen, and sulfur, which led to an increased S/C ratio, probably because of the sulfur present in the methionine residue of the peptides. The synergistic activity was measured with the free peptides in solution and covalently bound on RO membrane surfaces by observing increased leakage of 5(6)-carboxyfluorescein from large unilamellar vesicles. The synergistic antimicrobial activity against Pseudomonas aeruginosa was observed using surface-activity assays, where the AMP-modified RO membranes showed an effective inhibition of P. aeruginosa biofilm growth, as compared with unmodified membranes. An enhanced activity of antimicrobials on surfaces might lead to potent antimicrobial surfaces, which could result in more fouling-resistant water-treatment membranes.
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Affiliation(s)
- Nitzan Shtreimer Kandiyote
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research , Ben-Gurion University of the Negev , Sede-Boqer Campus , Midreshet Ben Gurion 84990 , Israel
| | - Gunasekaran Mohanraj
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research , Ben-Gurion University of the Negev , Sede-Boqer Campus , Midreshet Ben Gurion 84990 , Israel
| | - Canwei Mao
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research , Ben-Gurion University of the Negev , Sede-Boqer Campus , Midreshet Ben Gurion 84990 , Israel
| | - Roni Kasher
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research , Ben-Gurion University of the Negev , Sede-Boqer Campus , Midreshet Ben Gurion 84990 , Israel
| | - Christopher J Arnusch
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research , Ben-Gurion University of the Negev , Sede-Boqer Campus , Midreshet Ben Gurion 84990 , Israel
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133
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Townsend JM, Ott LM, Salash JR, Fung KM, Easley JT, Seim HB, Johnson JK, Weatherly RA, Detamore MS. Reinforced Electrospun Polycaprolactone Nanofibers for Tracheal Repair in an In Vivo Ovine Model. Tissue Eng Part A 2018; 24:1301-1308. [PMID: 29580173 PMCID: PMC6150933 DOI: 10.1089/ten.tea.2017.0437] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 03/01/2018] [Indexed: 01/24/2023] Open
Abstract
Tracheal stenosis caused by congenital anomalies, tumors, trauma, or intubation-related damage can cause severe breathing issues, diminishing the quality of life, and potentially becoming fatal. Current treatment methods include laryngotracheal reconstruction or slide tracheoplasty. Laryngotracheal reconstruction utilizes rib cartilage harvested from the patient, requiring a second surgical site. Slide tracheoplasty involves a complex surgical procedure to splay open the trachea and reconnect both segments to widen the lumen. A clear need exists for new and innovative approaches that can be easily adopted by surgeons, and to avoid harvesting autologous tissue from the patient. This study evaluated the use of an electrospun patch, consisting of randomly layered polycaprolactone (PCL) nanofibers enveloping 3D-printed PCL rings, to create a mechanically robust, suturable, air-tight, and bioresorbable graft for the treatment of tracheal defects. The study design incorporated two distinct uses of PCL: electrospun fibers to promote tissue integration, while remaining air-tight when wet, and 3D-printed rings to hold the airway open and provide external support and protection during the healing process. Electrospun, reinforced tracheal patches were evaluated in an ovine model, in which all sheep survived for 10 weeks, although an overgrowth of fibrous tissue surrounding the patch was observed to significantly narrow the airway. Minimal tissue integration of the surrounding tissue and the electrospun fibers suggested the need for further improvement. Potential areas for further improvement include a faster degradation rate, agents to increase cellular adhesion, and/or an antibacterial coating to reduce the initial bacterial load.
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Affiliation(s)
- Jakob M. Townsend
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma
| | | | | | - Kar-Ming Fung
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jeremiah T. Easley
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, Colorado
| | - Howard B. Seim
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, Colorado
| | | | - Robert A. Weatherly
- Section of Otolaryngology, Department of Surgery, Children's Mercy Hospital, Kansas City, Missouri
| | - Michael S. Detamore
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma
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134
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Zaccaria S, van Gaal RC, Riool M, Zaat SAJ, Dankers PYW. Antimicrobial peptide modification of biomaterials using supramolecular additives. JOURNAL OF POLYMER SCIENCE. PART A, POLYMER CHEMISTRY 2018; 56:1926-1934. [PMID: 30344368 PMCID: PMC6175361 DOI: 10.1002/pola.29078] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 05/29/2018] [Indexed: 12/11/2022]
Abstract
Biomaterials based on non-active polymers functionalized with antimicrobial agents by covalent modification or mixing are currently regarded as high potential solutions to prevent biomaterial associated infections that are major causes of biomedical device failure. Herewith a strategy is proposed in which antimicrobial materials are prepared by simply mixing-and-matching of ureido-pyrimidinone (UPy) based supramolecular polymers with antimicrobial peptides (AMPs) modified with the same UPy-moiety. The N-terminus of the AMPs was coupled in solution to an UPy-carboxylic acid synthon resulting in formation of a new amidic bond. The UPy-functionalization of the AMPs did not affect their secondary structure, as proved by circular dichroism spectroscopy. The antimicrobial activity of the UPy-AMPs in solution was also retained. In addition, the incorporation of UPy-AMPs into an UPy-polymer was stable and the final material was biocompatible. The addition of 4 mol % of UPy-AMPs in the UPy-polymer material protected against colonization by Escherichia coli, and methicillin-sensitive and -resistant strains of Staphylococcus aureus. This modular approach enables a stable but dynamic incorporation of the antimicrobial agents, allowing at the same time for the possibility to change the nature of the polymer, as well as the use of AMPs with different activity spectra. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 1926-1934.
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Affiliation(s)
- Sabrina Zaccaria
- Laboratory for Chemical BiologyEindhoven University of Technology, P.O. Box 513, 5600 MBEindhovenThe Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MBEindhovenThe Netherlands
| | - Ronald C. van Gaal
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MBEindhovenThe Netherlands
- Laboratory for Cell and Tissue EngineeringEindhoven University of Technology, P.O. Box 513, 5600 MBEindhovenThe Netherlands
| | - Martijn Riool
- Department of Medical MicrobiologyAmsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Meibergdreef 15Amsterdam 1105 AZThe Netherlands
| | - Sebastian A. J. Zaat
- Department of Medical MicrobiologyAmsterdam Infection and Immunity Institute, Academic Medical Center, University of Amsterdam, Meibergdreef 15Amsterdam 1105 AZThe Netherlands
| | - Patricia Y. W. Dankers
- Laboratory for Chemical BiologyEindhoven University of Technology, P.O. Box 513, 5600 MBEindhovenThe Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MBEindhovenThe Netherlands
- Laboratory for Cell and Tissue EngineeringEindhoven University of Technology, P.O. Box 513, 5600 MBEindhovenThe Netherlands
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135
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Dostert M, Belanger CR, Hancock REW. Design and Assessment of Anti-Biofilm Peptides: Steps Toward Clinical Application. J Innate Immun 2018; 11:193-204. [PMID: 30134244 PMCID: PMC6738209 DOI: 10.1159/000491497] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/23/2018] [Accepted: 06/23/2018] [Indexed: 12/13/2022] Open
Abstract
Highly antibiotic resistant, microbial communities, referred to as biofilms, cause various life-threatening infections in humans. At least two-thirds of all clinical infections are biofilm associated, and antibiotic therapy regularly fails to cure patients. Anti-biofilm peptides represent a promising approach to treat these infections by targeting biofilm-specific characteristics such as highly conserved regulatory mechanisms. They are being considered for clinical application and we discuss here key factors in discovery, design, and application, particularly the implementation of host-mimicking conditions, that are required to enable the successful advancement of potent anti-biofilm peptides from the bench to the clinic.
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Affiliation(s)
- Melanie Dostert
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Corrie R Belanger
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Robert E W Hancock
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada,
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136
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Mi G, Shi D, Wang M, Webster TJ. Reducing Bacterial Infections and Biofilm Formation Using Nanoparticles and Nanostructured Antibacterial Surfaces. Adv Healthc Mater 2018; 7:e1800103. [PMID: 29790304 DOI: 10.1002/adhm.201800103] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/29/2018] [Indexed: 02/02/2023]
Abstract
With the rapid spreading of resistance among common bacterial pathogens, bacterial infections, especially antibiotic-resistant bacterial infections, have drawn much attention worldwide. In light of this, nanoparticles, including metal and metal oxide nanoparticles, liposomes, polymersomes, and solid lipid nanoparticles, have been increasingly exploited as both efficient antimicrobials themselves or as delivery platforms to enhance the effectiveness of existing antibiotics. In addition to the emergence of widespread antibiotic resistance, of equal concern are implantable device-associated infections, which result from bacterial adhesion and subsequent biofilm formation at the site of implantation. The ineffectiveness of conventional antibiotics against these biofilms often leads to revision surgery, which is both debilitating to the patient and expensive. Toward this end, micro- and nanotopographies, especially those that resemble natural surfaces, and nonfouling chemistries represent a promising combination for long-term antibacterial activity. Collectively, the use of nanoparticles and nanostructured surfaces to combat bacterial growth and infections is a promising solution to the growing problem of antibiotic resistance and biofilm-related device infections.
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Affiliation(s)
- Gujie Mi
- Department of Chemical Engineering; 313 Snell Engineering Center; Northeastern University; 360 Huntington Avenue Boston MA 02115 USA
| | - Di Shi
- Department of Chemical Engineering; 313 Snell Engineering Center; Northeastern University; 360 Huntington Avenue Boston MA 02115 USA
| | - Mian Wang
- Department of Chemical Engineering; 313 Snell Engineering Center; Northeastern University; 360 Huntington Avenue Boston MA 02115 USA
| | - Thomas J. Webster
- Department of Chemical Engineering; 313 Snell Engineering Center; Northeastern University; 360 Huntington Avenue Boston MA 02115 USA
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137
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Ghorbani F, Zamanian A. Oxygen-plasma treatment-induced surface engineering of biomimetic polyurethane nanofibrous scaffolds for gelatin-heparin immobilization. E-POLYMERS 2018. [DOI: 10.1515/epoly-2017-0185] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractPolyurethane (PU) has been extensively used in vascular tissue engineering due to its outstanding mechanical performance and blood compatibility behavior. Here, biomimetic PU-based scaffolds were prepared using an electrospinning technique and gelatin-heparin was introduced as a surface modifier after oxygen plasma treatment to improve cell attachment and release an anticoagulation agent. Morphology, Fourier transform infrared (FTIR) spectroscopy, compression strength, swelling and biodegradation ratio, drug release level and cellular interactions were evaluated. According to the scanning electron microscopy (SEM) micrographs, gelatin-heparin immobilized PU nanofibers exhibited a smooth surface and a bead free structure that nanofibers distributed in the range of 300–1000 nm. The mechanical strength of constructs, swelling and biodegradation ratio, and drug release level illustrated higher values for oxygen plasma-treated samples compared with bilayered scaffolds. Cellular adhesion and biocompatibility ameliorated after plasma treatment. All the mentioned findings indicated the initial physicomechanical and biological potential of biomimetic PU-based fibers in the improvements of vascular scaffolds.
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Affiliation(s)
- Farnaz Ghorbani
- Department of Biomedical Engineering, Tehran Science and Research Branch, Islamic Azad University, P.O. Box: 4515-775, Tehran, Iran
- Biomaterials Research Group, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, P.O. Box: 14155-4777, Tehran, Iran
| | - Ali Zamanian
- Biomaterials Research Group, Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, P.O. Box: 14155-4777, Tehran, Iran, Phone: (+98) 912 3211180, Fax: (+98) 263 6201818
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138
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Extraction and quantification of biofilm bacteria: Method optimized for urinary catheters. Sci Rep 2018; 8:8069. [PMID: 29795121 PMCID: PMC5966383 DOI: 10.1038/s41598-018-26342-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 05/08/2018] [Indexed: 12/13/2022] Open
Abstract
Bacterial biofilms are responsible for the failure of many medical devices such as urinary catheters and are associated with many infectious and non-infectious complications. Preclinical and clinical evaluation of novel catheter coatings to prevent these infections needs to accurately quantify the bacterial load in the biofilm in vitro and ex vivo. There is currently no uniform gold standard for biofilm quantification for different surfaces and established biofilms. We have tried to establish a simple, accurate and reproducible method for extraction and measurement of biofilm bacteria on indwelling catheters, using a combination of vortexing and sonication. We demonstrate the usefulness of this method for catheters of different sizes - 3 Fr to 14 Fr - in vitro, in murine and porcine models, and indwelling in human clinical subjects. We also demonstrate consistent results with complex and polymicrobial biofilms. We believe that this standardized reproducible method will assist the assessment of biofilms in general and urological devices in particular in efforts to harness novel technologies to prevent healthcare associated infections.
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139
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Andrea A, Molchanova N, Jenssen H. Antibiofilm Peptides and Peptidomimetics with Focus on Surface Immobilization. Biomolecules 2018; 8:E27. [PMID: 29772735 PMCID: PMC6022873 DOI: 10.3390/biom8020027] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/12/2018] [Accepted: 05/14/2018] [Indexed: 12/17/2022] Open
Abstract
Bacterial biofilms pose a major threat to public health, as they are associated with at least two thirds of all infections. They are highly resilient and render conventional antibiotics inefficient. As a part of the innate immune system, antimicrobial peptides have drawn attention within the last decades, as some of them are able to eradicate biofilms at sub-minimum inhibitory concentration (MIC) levels. However, peptides possess a number of disadvantages, such as susceptibility to proteolytic degradation, pH and/or salinity-dependent activity and loss of activity due to binding to serum proteins. Hence, proteolytically stable peptidomimetics were designed to overcome these drawbacks. This paper summarizes the current peptide and peptidomimetic strategies for combating bacteria-associated biofilm infections, both in respect to soluble and surface-functionalized solutions.
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Affiliation(s)
- Athina Andrea
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark.
| | - Natalia Molchanova
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark.
| | - Håvard Jenssen
- Department of Science and Environment, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark.
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140
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Xue Q, Liu XB, Lao YH, Wu LP, Wang D, Zuo ZQ, Chen JY, Hou J, Bei YY, Wu XF, Leong KW, Xiang H, Han J. Anti-infective biomaterials with surface-decorated tachyplesin I. Biomaterials 2018; 178:351-362. [PMID: 29778319 DOI: 10.1016/j.biomaterials.2018.05.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 10/16/2022]
Abstract
Implants decorated with antimicrobial peptides (AMPs) can prevent infection and reduce the risk of creating antibiotic resistance. Yet the restricted mobility of surficial AMP often compromises its activity. Here, we report a simple but effective strategy to allow a more flexible display of AMP on the biomaterial surface and demonstrate its efficacy for wound healing. The AMP, tachyplesin I (Tac), is tagged with the polyhydroxyalkanoate-granule-associated protein (PhaP) and immobilized on haloarchaea-produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) via hydrophobic interaction. The PhaP-Tac coating effectively inhibits the growth of both Gram-negative and Gram-positive bacteria. It also increases the surface hydrophilicity to improve fibroblast proliferation in vitro, and accelerates wound healing by decreasing bacterial counts to below 105 CFU per gram of tissue in a deep-wound mouse model in vivo. Taken together, these findings demonstrate an effective strategy to realize the full potential of AMPs in imparting implants with an anti-microbial activity that is localized and potent.
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Affiliation(s)
- Qiong Xue
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xiao-Bin Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Yeh-Hsing Lao
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States
| | - Lin-Ping Wu
- Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, People's Republic of China
| | - Dong Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Zhen-Qiang Zuo
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jun-Yu Chen
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jing Hou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Yuan-Yuan Bei
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Xue-Fei Wu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States
| | - Hua Xiang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jing Han
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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141
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Ribeiro KL, Frías IAM, Franco OL, Dias SC, Sousa-Junior AA, Silva ON, Bakuzis AF, Oliveira MDL, Andrade CAS. Clavanin A-bioconjugated Fe 3O 4/Silane core-shell nanoparticles for thermal ablation of bacterial biofilms. Colloids Surf B Biointerfaces 2018; 169:72-81. [PMID: 29751343 DOI: 10.1016/j.colsurfb.2018.04.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 03/13/2018] [Accepted: 04/26/2018] [Indexed: 01/27/2023]
Abstract
The use of central venous catheters (CVC) is highly associated with nosocomial blood infections and its use largely requires a systematic assessment of benefits and risks. Bacterial contamination of these tubes is frequent and may result in development of microbial consortia also known as biofilm. The woven nature of biofilm provides a practical defense against antimicrobial agents, facilitating bacterial dissemination through the patient's body and development of antimicrobial resistance. In this work, the authors describe the modification of CVC tubing by immobilizing Fe3O4-aminosilane core-shell nanoparticles functionalized with antimicrobial peptide clavanin A (clavA) as an antimicrobial prophylactic towards Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae. Its anti-biofilm-attachment characteristic relies in clavA natural activity to disrupt the bacterial lipidic membrane. The aminosilane shell prevents iron leaching, which is an important nutrient for bacterial growth. Fe3O4-clavA-modified CVCs showed to decrease Gram-negative bacteria attachment up to 90% when compared to control clean CVC. Additionally, when hyperthermal treatment is triggered for 5 min at 80 °C in a tubing that already presents bacterial biofilm (CVC-BF), the viability of attached bacteria reduces up to 88%, providing an efficient solution to avoid changing catheter.
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Affiliation(s)
- Kalline L Ribeiro
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil.
| | - Isaac A M Frías
- Rede Pesquisa em Biotecnologia e Biodiversidade Pró-Centro-Oeste, Instituto Nacional de Ciência e Tecnologia, Universidade Federal de Pernambuco, Brazil.
| | - Octavio L Franco
- Centro de Análise Proteômicas e Bioquímicas de Brasília, Universidade Católica de Brasília, Brasília, DF, Brazil; S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil.
| | - Simoni C Dias
- Centro de Análise Proteômicas e Bioquímicas de Brasília, Universidade Católica de Brasília, Brasília, DF, Brazil; Pós-Graduação em Biologia Animal, Campus Darcy Ribeiro, Universidade de Brasilia, DF, Brazil.
| | | | - Osmar N Silva
- S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil.
| | - Andris F Bakuzis
- Instituto de Física, Universidade Federal de Goiás, 74690-900 Goiânia, GO, Brazil.
| | - Maria D L Oliveira
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil.
| | - Cesar A S Andrade
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil.
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142
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Wang J, Chou S, Yang Z, Yang Y, Wang Z, Song J, Dou X, Shan A. Combating Drug-Resistant Fungi with Novel Imperfectly Amphipathic Palindromic Peptides. J Med Chem 2018; 61:3889-3907. [PMID: 29648811 DOI: 10.1021/acs.jmedchem.7b01729] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Antimicrobial peptides are an important weapon against invading pathogens and are potential candidates as novel antibacterial agents, but their antifungal activities are not fully developed. In this study, a set of imperfectly amphipathic peptides was developed based on the imperfectly amphipathic palindromic structure R n(XRXXXRX)R n ( n = 1, 2; X represents L, I, F, or W), and the engineered peptides exhibited high antimicrobial activities against all fungi and bacteria tested (including fluconazole-resistant Candida albicans), with geometric mean (GM) MICs ranging from 2.2 to 6.62 μM. Of such peptides, 13 (I6) (RRIRIIIRIRR-NH2) that was Ile rich in its hydrophobic face had the highest antifungal activity (GMfungi = 1.64 μM) while showing low toxicity and high salt and serum tolerance. It also had dramatic LPS-neutralizing propensity and a potent membrane-disruptive mechanism against microbial cells. In summary, these findings were useful for short AMPs design to combat the growing threat of drug-resistant fungal and bacterial infections.
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Affiliation(s)
- Jiajun Wang
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
| | - Shuli Chou
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
| | - Zhanyi Yang
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
| | - Yang Yang
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
| | - Zhihua Wang
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
| | - Jing Song
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
| | - Xiujing Dou
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
| | - Anshan Shan
- Institute of Animal Nutrition , Northeast Agricultural University , Harbin 150030 , P. R. China
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143
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Chang R, Lu H, Li M, Zhang S, Xiong L, Sun Q. Preparation of extra-small nisin nanoparticles for enhanced antibacterial activity after autoclave treatment. Food Chem 2018; 245:756-760. [DOI: 10.1016/j.foodchem.2017.11.116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/07/2017] [Accepted: 11/30/2017] [Indexed: 10/18/2022]
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144
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Sun H, Hong Y, Xi Y, Zou Y, Gao J, Du J. Synthesis, Self-Assembly, and Biomedical Applications of Antimicrobial Peptide-Polymer Conjugates. Biomacromolecules 2018. [PMID: 29539262 DOI: 10.1021/acs.biomac.8b00208] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Antimicrobial peptides (AMPs) have been attracting much attention due to their excellent antimicrobial efficiency and low rate in driving antimicrobial resistance (AMR), which has been increasing globally to alarming levels. Conjugation of AMPs into functional polymers not only preserves excellent antimicrobial activities but reduces the toxicity and offers more functionalities, which brings new insight toward developing multifunctional biomedical materials such as hydrogels, polymer vesicles, polymer micelles, and so forth. These nanomaterials have been exhibiting excellent antimicrobial activity against a broad spectrum of bacteria including multidrug-resistant (MDR) ones, high selectivity, and low cytotoxicity, suggesting promising potentials in wound dressing, implant coating, antibiofilm, tissue engineering, and so forth. This Perspective seeks to highlight the state-of-the-art strategy for the synthesis, self-assembly, and biomedical applications of AMP-polymer conjugates and explore the promising directions for future research ranging from synthetic strategies, multistage and stimuli-responsive antibacterial activities, antifungi applications, and potentials in elimination of inflammation during medical treatment. It also will provide perspectives on how to stem the remaining challenges and unresolved problems in combating bacteria, including MDR ones.
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Affiliation(s)
- Hui Sun
- Department of Polymeric Materials, School of Materials Science and Engineering , Tongji University , 4800 Caoan Road , Shanghai 201804 , China
| | - Yuanxiu Hong
- Department of Polymeric Materials, School of Materials Science and Engineering , Tongji University , 4800 Caoan Road , Shanghai 201804 , China
| | - Yuejing Xi
- Department of Polymeric Materials, School of Materials Science and Engineering , Tongji University , 4800 Caoan Road , Shanghai 201804 , China
| | - Yijie Zou
- Department of Polymeric Materials, School of Materials Science and Engineering , Tongji University , 4800 Caoan Road , Shanghai 201804 , China
| | - Jingyi Gao
- Department of Polymeric Materials, School of Materials Science and Engineering , Tongji University , 4800 Caoan Road , Shanghai 201804 , China
| | - Jianzhong Du
- Department of Polymeric Materials, School of Materials Science and Engineering , Tongji University , 4800 Caoan Road , Shanghai 201804 , China.,Department of Orthopedics, Shanghai Tenth People's Hospital , Tongji University School of Medicine , Shanghai 200072 , China
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145
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Surface modifications for antimicrobial effects in the healthcare setting: a critical overview. J Hosp Infect 2018; 99:239-249. [PMID: 29410096 DOI: 10.1016/j.jhin.2018.01.018] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 01/25/2018] [Indexed: 12/30/2022]
Abstract
The spread of infections in healthcare environments is a persistent and growing problem in most countries, aggravated by the development of microbial resistance to antibiotics and disinfectants. In addition to indwelling medical devices (e.g. implants, catheters), such infections may also result from adhesion of microbes either to external solid-water interfaces such as shower caps, taps, drains, etc., or to external solid-gas interfaces such as door handles, clothes, curtains, computer keyboards, etc. The latter are the main focus of the present work, where an overview of antimicrobial coatings for such applications is presented. This review addresses well-established and novel methodologies, including chemical and physical functional modification of surfaces to reduce microbial contamination, as well as the potential risks associated with the implementation of such anticontamination measures. Different chemistry-based approaches are discussed, for instance anti-adhesive surfaces (e.g. superhydrophobic, zwitterions), contact-killing surfaces (e.g. polymer brushes, phages), and biocide-releasing surfaces (e.g. triggered release, quorum sensing-based systems). The review also assesses the impact of topographical modifications at distinct dimensions (micrometre and nanometre orders of magnitude) and the importance of applying safe-by-design criteria (e.g. toxicity, contribution for unwanted acquisition of antimicrobial resistance, long-term stability) when developing and implementing antimicrobial surfaces.
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146
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Bassegoda A, Ivanova K, Ramon E, Tzanov T. Strategies to prevent the occurrence of resistance against antibiotics by using advanced materials. Appl Microbiol Biotechnol 2018; 102:2075-2089. [PMID: 29392390 DOI: 10.1007/s00253-018-8776-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 01/26/2023]
Abstract
Drug resistance occurrence is a global healthcare concern responsible for the increased morbidity and mortality in hospitals, time of hospitalisation and huge financial loss. The failure of the most antibiotics to kill "superbugs" poses the urgent need to develop innovative strategies aimed at not only controlling bacterial infection but also the spread of resistance. The prevention of pathogen host invasion by inhibiting bacterial virulence and biofilm formation, and the utilisation of bactericidal agents with different mode of action than classic antibiotics are the two most promising new alternative strategies to overcome antibiotic resistance. Based on these novel approaches, researchers are developing different advanced materials (nanoparticles, hydrogels and surface coatings) with novel antimicrobial properties. In this review, we summarise the recent advances in terms of engineered materials to prevent bacteria-resistant infections according to the antimicrobial strategies underlying their design.
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Affiliation(s)
- Arnau Bassegoda
- Group of Molecular and Industrial Biotechnology, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Terrassa, Spain
| | - Kristina Ivanova
- Group of Molecular and Industrial Biotechnology, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Terrassa, Spain
| | - Eva Ramon
- Group of Molecular and Industrial Biotechnology, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Terrassa, Spain
| | - Tzanko Tzanov
- Group of Molecular and Industrial Biotechnology, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Terrassa, Spain.
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147
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Anjum S, Singh S, Benedicte L, Roger P, Panigrahi M, Gupta B. Biomodification Strategies for the Development of Antimicrobial Urinary Catheters: Overview and Advances. GLOBAL CHALLENGES (HOBOKEN, NJ) 2018; 2:1700068. [PMID: 31565299 PMCID: PMC6607219 DOI: 10.1002/gch2.201700068] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 10/05/2017] [Indexed: 05/27/2023]
Abstract
Microbial burden associated with medical devices poses serious health challenges and is accountable for an increased number of deaths leading to enormous medical costs. Catheter-associated urinary tract infections are the most common hospital-acquired infections with enhanced patient morbidity. Quite often, catheter-associated bacteriuria produces apparent adverse outcomes such as urosepsis and even death. Taking this into account, the methods to modify urinary catheters to control microbial infections with relevance to clinical drug resistance are systematically evaluated in this review. Technologies to restrict biofilm formation at initial stages by using functional nanomaterials are elucidated. The conventional methodology of using single therapeutic intervention for developing an antimicrobial catheter lacks clinically meaningful benefit. Therefore, catheter modification using naturally derived antimicrobials such as essential oils, curcumin, enzymes, and antimicrobial peptides in combination with synthetic antibiotics/nanoantibiotics is likely to exert sufficient inhibitory effect on uropathogens and is extensively discussed. Futuristic efforts in this area are projected here that demand clinical studies to address areas of uncertainty to avoid development of bacterial resistance to the new generation therapy with minimum discomfort to the patients.
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Affiliation(s)
- Sadiya Anjum
- Bioengineering LaboratoryDepartment of Textile TechnologyIndian Institute of TechnologyNew Delhi110016India
| | - Surabhi Singh
- Bioengineering LaboratoryDepartment of Textile TechnologyIndian Institute of TechnologyNew Delhi110016India
| | - Lepoittevin Benedicte
- ICMMO ‐ LG2M ‐ Bât 420Université Paris‐Sud XI, 15rue Georges Clémenceau91405Orsay CedexFrance
| | - Philippe Roger
- ICMMO ‐ LG2M ‐ Bât 420Université Paris‐Sud XI, 15rue Georges Clémenceau91405Orsay CedexFrance
| | - Manoj Panigrahi
- Department of Urology and PathologySikkim Manipal Institute of Medical SciencesGangtokSikkim737101India
| | - Bhuvanesh Gupta
- Bioengineering LaboratoryDepartment of Textile TechnologyIndian Institute of TechnologyNew Delhi110016India
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148
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Kang TW, Chandrasekaran G, Hwang EC, Kim HS, Lakshmanan VK. Characterization and antibacterial activity of PVA–PVP–CS carvacrol-loaded polymer composite films for urinary catheter. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2017.1417286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | | | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hye Su Kim
- Premedical Sciences, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Vinoth-Kumar Lakshmanan
- Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju, Republic of Korea
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149
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Peng C, Vishwakarma A, Li Z, Miyoshi T, Barton HA, Joy A. Modification of a conventional polyurethane composition provides significant anti-biofilm activity against Escherichia coli. Polym Chem 2018. [DOI: 10.1039/c8py00492g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tecoflex-NH3+ exhibited a contact-killing mechanism and showed excellent anti-biofilm properties against E. coli even after 5 days.
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Affiliation(s)
- Chao Peng
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | | | - Zhuoran Li
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | | | | | - Abraham Joy
- Department of Polymer Science
- The University of Akron
- Akron
- USA
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150
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Masurier N, Tissot JB, Boukhriss D, Jebors S, Pinese C, Verdié P, Amblard M, Mehdi A, Martinez J, Humblot V, Subra G. Site-specific grafting on titanium surfaces with hybrid temporin antibacterial peptides. J Mater Chem B 2018; 6:1782-1790. [DOI: 10.1039/c8tb00051d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlled orientation of silylated hybrid-temporins on titanium surfaces improved antibacterial activity.
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