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De Cristofaro GA, Paolucci M, Pappalardo D, Pagliarulo C, Sessini V, Lo Re G. Interface interactions driven antioxidant properties in olive leaf extract/cellulose nanocrystals/poly(butylene adipate-co-terephthalate) biomaterials. Int J Biol Macromol 2024; 272:132509. [PMID: 38843608 DOI: 10.1016/j.ijbiomac.2024.132509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/12/2024] [Accepted: 05/17/2024] [Indexed: 06/16/2024]
Abstract
Functional packaging represents a new frontier for research on food packaging materials. In this context, adding antioxidant properties to packaging films is of interest. In this study, poly(butylene adipate-co-terephthalate) (PBAT) and olive leaf extract (OLE) have been melt-compounded to obtain novel biomaterials suitable for applications which would benefit from the antioxidant activity. The effect of cellulose nanocrystals (CNC) on the PBAT/OLE system was investigated, considering the interface interactions between PBAT/OLE and OLE/CNC. The biomaterials' physical and antioxidant properties were characterized. Morphological analysis corroborates the full miscibility between OLE and PBAT and that OLE favours CNC dispersion into the polymer matrix. Tensile tests show a stable plasticizer effect of OLE for a month in line with good interface PBAT/OLE interactions. Simulant food tests indicate a delay of OLE release from the 20 wt% OLE-based materials. Antioxidant activity tests prove the antioxidant effect of OLE depending on the released polyphenols, prolonged in the system at 20 wt% of OLE. Fluorescence spectroscopy demonstrates the nature of the non-covalent PBAT/OLE interphase interactions in π-π stacking bonds. The presence of CNC in the biomaterials leads to strong hydrogen bonding interactions between CNC and OLE, accelerating OLE released from the PBAT matrix.
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Affiliation(s)
- Giuseppa Anna De Cristofaro
- University of Sannio - Department of Science and Technology, Via Francesco De Sanctis snc, 82100 Benevento, Italy.
| | - Marina Paolucci
- University of Sannio - Department of Science and Technology, Via Francesco De Sanctis snc, 82100 Benevento, Italy.
| | - Daniela Pappalardo
- University of Sannio - Department of Science and Technology, Via Francesco De Sanctis snc, 82100 Benevento, Italy.
| | - Caterina Pagliarulo
- University of Sannio - Department of Science and Technology, Via Francesco De Sanctis snc, 82100 Benevento, Italy.
| | - Valentina Sessini
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research "Andrés M. del Río" (IQAR), Universidad de Alcalá, Campus Universitario, 28871 Alcalá de Henares, Madrid, Spain.
| | - Giada Lo Re
- Department of Industrial and Materials Science, Chalmers University of Technology, Rännvägen 2A, 41258 Gothenburg, Sweden; Wallenberg Wood Science Centre, Chalmers University of Technology, Kemigården 4, 41258 Gothenburg, Sweden.
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2
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Kowalewska A, Majewska-Smolarek K. Eugenol-Based Polymeric Materials-Antibacterial Activity and Applications. Antibiotics (Basel) 2023; 12:1570. [PMID: 37998772 PMCID: PMC10668689 DOI: 10.3390/antibiotics12111570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
Eugenol (4-Allyl-2-methoxy phenol) (EUG) is a plant-derived allyl chain-substituted guaiacol, widely known for its antimicrobial and anesthetic properties, as well as the ability to scavenge reactive oxygen species. It is typically used as a mixture with zinc oxide (ZOE) for the preparation of restorative tooth fillings and treatment of root canal infections. However, the high volatility of this insoluble-in-water component of natural essential oils can be an obstacle to its wider application. Moreover, molecular eugenol can be allergenic and even toxic if taken orally in high doses for long periods of time. Therefore, a growing interest in eugenol loading in polymeric materials (including the encapsulation of molecular eugenol and polymerization of EUG-derived monomers) has been noted recently. Such active macromolecular systems enhance the stability of eugenol action and potentially provide prolonged contact with pathogens without the undesired side effects of free EUG. In this review, we present an overview of methods leading to the formation of macromolecular derivatives of eugenol as well as the latest developments and further perspectives in their pharmacological and antimicrobial applications.
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Affiliation(s)
- Anna Kowalewska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland;
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3
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Gędas A, Draszanowska A, den Bakker H, Diez-Gonzalez F, Simões M, Olszewska MA. Prevention of surface colonization and anti-biofilm effect of selected phytochemicals against Listeria innocua strain. Colloids Surf B Biointerfaces 2023; 228:113391. [PMID: 37290199 DOI: 10.1016/j.colsurfb.2023.113391] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023]
Abstract
This work aimed to determine the ability of Listeria innocua (L.i.) to colonize eight materials found in food-processing and packaging settings and to evaluate the viability of the sessile cells. We also selected four commonly used phytochemicals (trans-cinnamaldehyde, eugenol, citronellol, and terpineol) to examine and compare their efficacies against L.i. on each surface. Biofilms were also deciphered in chamber slides using confocal laser scanning microscopy to learn more about how phytochemicals affect L.i. The materials tested were silicone rubber (Si), polyurethane (PU), polypropylene (PP), polytetrafluoroethylene (PTFE), stainless steel 316 L (SS), copper (Cu), polyethylene terephthalate (PET), and borosilicate glass (GL). L.i. colonized Si and SS abundantly, followed by PU, PP, Cu, PET, GL, and PTFE surfaces. The live/dead status ranged from 65/35% for Si to 20/80% for Cu, and the estimates of cells unable to grow on Cu were the highest, reaching even 43%. Cu was also characterized by the highest degree of hydrophobicity (ΔGTOT = -81.5 mJ/m2). Eventually, it was less prone to attachment, as we could not recover L.i. after treatments with control or phytochemical solutions. The PTFE surface demonstrated the least total cell densities and fewer live cells (31%) as compared to Si (65%) or SS (nearly 60%). It also scored high in hydrophobicity degree (ΔGTOT = -68.9 mJ/m2) and efficacy of phytochemical treatments (on average, biofilms were reduced by 2.1 log10 CFU/cm2). Thus, the hydrophobicity of surface materials plays a role in cell viability, biofilm formation, and then biofilm control and could be the prevailing parameter when designing preventive measures and interventions. As for phytochemical comparison, trans-cinnamaldehyde displayed greater efficacies, with the highest reductions seen on PET and Si (4.6 and 4.0 log10 CFU/cm2). The biofilms in chamber slides exposed to trans-cinnamaldehyde revealed the disrupted organization to a greater extent than other molecules. This may help establish better interventions via proper phytochemical selection for incorporation in environment-friendly disinfection approaches.
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Affiliation(s)
- Astrid Gędas
- Department of Industrial and Food Microbiology, The Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Anna Draszanowska
- Department of Human Nutrition, The Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Słoneczna 45 f, 10-709 Olsztyn, Poland
| | - Henk den Bakker
- Center for Food Safety, College of Agriculture and Environmental Sciences, University of Georgia, 1109 Experiment Street, Griffin, GA 30223, USA
| | - Francisco Diez-Gonzalez
- Center for Food Safety, College of Agriculture and Environmental Sciences, University of Georgia, 1109 Experiment Street, Griffin, GA 30223, USA
| | - Manuel Simões
- ALiCE, Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; LEPABE, Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Magdalena A Olszewska
- Department of Industrial and Food Microbiology, The Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Plac Cieszyński 1, 10-726 Olsztyn, Poland.
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4
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Inhibition of multi-species biofilm formation using chitosan-based film supplemented with essential oils. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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5
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Tu Q, Pu M, Li Y, Wang Y, Li M, Song L, Li M, An X, Fan H, Tong Y. Acinetobacter Baumannii Phages: Past, Present and Future. Viruses 2023; 15:v15030673. [PMID: 36992382 PMCID: PMC10057898 DOI: 10.3390/v15030673] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Acinetobacter baumannii (A. baumannii) is one of the most common clinical pathogens and a typical multi-drug resistant (MDR) bacterium. With the increase of drug-resistant A. baumannii infections, it is urgent to find some new treatment strategies, such as phage therapy. In this paper, we described the different drug resistances of A. baumannii and some basic properties of A. baumannii phages, analyzed the interaction between phages and their hosts, and focused on A. baumannii phage therapies. Finally, we discussed the chance and challenge of phage therapy. This paper aims to provide a more comprehensive understanding of A. baumannii phages and theoretical support for the clinical application of A. baumannii phages.
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Affiliation(s)
- Qihang Tu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mingfang Pu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yahao Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuer Wang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Maochen Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lihua Song
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mengzhe Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoping An
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huahao Fan
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
- Correspondence: (H.F.); (Y.T.)
| | - Yigang Tong
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), Beijing University of Chemical Technology, Beijing 100029, China
- Correspondence: (H.F.); (Y.T.)
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6
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A Review on Antimicrobial Packaging for Extending the Shelf Life of Food. Processes (Basel) 2023. [DOI: 10.3390/pr11020590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
Food packaging systems are continually impacted by the growing demand for minimally processed foods, changing eating habits, and food safety risks. Minimally processed foods are prone to the growth of harmful microbes, compromising quality and safety. As a result, the need for improved food shelf life and protection against foodborne diseases alongside consumer preference for minimally processed foods with no or lesser synthetic additives foster the development of innovative technologies such as antimicrobial packaging. It is a form of active packaging that can release antimicrobial substances to suppress the activities of specific microorganisms, thereby improving food quality and safety during long-term storage. However, antimicrobial packaging continues to be a very challenging technology. This study highlights antimicrobial packaging concepts, providing different antimicrobial substances used in food packaging. We review various types of antimicrobial systems. Emphasis is given to the effectiveness of antimicrobial packaging in various food applications, including fresh and minimally processed fruit and vegetables and meat and dairy products. For the development of antimicrobial packaging, several approaches have been used, including the use of antimicrobial sachets inside packaging, packaging films, and coatings incorporating active antimicrobial agents. Due to their antimicrobial activity and capacity to extend food shelf life, regulate or inhibit the growth of microorganisms and ultimately reduce the potential risk of health hazards, natural antimicrobial agents are gaining significant importance and attention in developing antimicrobial packaging systems. Selecting the best antimicrobial packaging system for a particular product depends on its nature, desired shelf life, storage requirements, and legal considerations. The current review is expected to contribute to research on the potential of antimicrobial packaging to extend the shelf life of food and also serves as a good reference for food innovation information.
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7
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Sycz Z, Wojnicz D, Tichaczek-Goska D. Does Secondary Plant Metabolite Ursolic Acid Exhibit Antibacterial Activity against Uropathogenic Escherichia coli Living in Single- and Multispecies Biofilms? Pharmaceutics 2022; 14:pharmaceutics14081691. [PMID: 36015317 PMCID: PMC9415239 DOI: 10.3390/pharmaceutics14081691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/18/2022] [Accepted: 08/12/2022] [Indexed: 11/16/2022] Open
Abstract
Multispecies bacterial biofilms are the often cause of chronic recurrent urinary tract infections within the human population. Eradicating such a complex bacterial consortium with standard pharmacotherapy is often unsuccessful. Therefore, plant-derived compounds are currently being researched as an alternative strategy to antibiotic therapy for preventing bacterial biofilm formation and facilitating its eradication. Therefore, our research aimed to determine the effect of secondary plant metabolite ursolic acid (UA) on the growth and survival, the quantity of exopolysaccharides formed, metabolic activity, and morphology of uropathogenic Gram-negative rods living in single- and mixed-species biofilms at various stages of their development. Spectrophotometric methods were used for biofilm mass formation and metabolic activity determination. The survival of bacteria was established using the serial dilution assay. The decrease in survival and inhibition of biofilm creation, both single- and multispecies, as well as changes in the morphology of bacterial cells were noticed. As UA exhibited better activity against young biofilms, the use of UA-containing formulations, especially during the initial steps of urinary tract infection, seems to be reasonable. However, the future direction should be a thorough understanding of the mechanisms of UA activity as a bioactive substance.
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Buakaew W, Pankla Sranujit R, Noysang C, Krobthong S, Yingchutrakul Y, Thongsri Y, Potup P, Daowtak K, Usuwanthim K. Proteomic Analysis Reveals Proteins Involved in the Mode of Action of β-Citronellol Identified From Citrus hystrix DC. Leaf Against Candida albicans. Front Microbiol 2022; 13:894637. [PMID: 35677908 PMCID: PMC9168680 DOI: 10.3389/fmicb.2022.894637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/26/2022] [Indexed: 11/23/2022] Open
Abstract
Candida albicans is a fungus that lives primarily on the mucosal surfaces of healthy humans, such as the oral cavity, vagina, and gastrointestinal tract. This commensal organism can be controlled by other microbiota, while certain conditions can increase the risk of C. albicans outgrowth and cause disease. Prevalence of the drug-resistant phenotype, as well as the severity of C. albicans infection in immunocompromised patients, presents a challenge for scientists to develop novel, effective treatment, and prevention strategies. β-Citronellol is an intriguing active compound of several plants that has been linked to antifungal activity, but data on the mechanism of action in terms of proteomic profiling are lacking. Here, β-citronellol identified from Citrus hystrix DC. leaf against C. albicans were evaluated. A proteomic approach was used to identify potential target proteins involved in the mode of action of β-citronellol. This study identified and discussed three protein groups based on the 126 major proteins that were altered in response to β-citronellol treatment, 46 of which were downregulated and 80 of which were upregulated. Significant protein groups include cell wall proteins (e.g., Als2p, Rbt1p, and Pga4p), cellular stress response enzymes (e.g., Sod1p, Gst2p, and Ddr48p), and ATP synthesis-associated proteins (e.g., Atp3p, Atp7p, Cox1p, and Cobp). Results demonstrated the complexities of protein interactions influenced by β-citronellol treatment and highlighted the potential of antifungal activity for future clinical and drug development research.
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Affiliation(s)
- Watunyoo Buakaew
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Rungnapa Pankla Sranujit
- Faculty of Integrative Medicine, Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand
| | - Chanai Noysang
- Faculty of Integrative Medicine, Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand
| | - Sucheewin Krobthong
- Interdisciplinary Graduate Program in Genetic Engineering, Kasetsart University, Bangkok, Thailand
- Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Yodying Yingchutrakul
- Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, Thailand
- National Omics Center, National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Yordhathai Thongsri
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Pachuen Potup
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Krai Daowtak
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Kanchana Usuwanthim
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
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9
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Rossi C, Maggio F, Casaccia M, Chaves‐López C, Valbonetti L, Serio A, Paparella A. Comparing the effectiveness of
Cinnamomum zeylanicum
essential oil and two common household sanitizers to reduce lettuce microbiota and prevent
Salmonella enterica
recontamination. J Food Saf 2022. [DOI: 10.1111/jfs.12963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Chiara Rossi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo Teramo TE Italy
| | - Francesca Maggio
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo Teramo TE Italy
| | - Manila Casaccia
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo Teramo TE Italy
| | - Clemencia Chaves‐López
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo Teramo TE Italy
| | - Luca Valbonetti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo Teramo TE Italy
| | - Annalisa Serio
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo Teramo TE Italy
| | - Antonello Paparella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo Teramo TE Italy
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10
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Antifungal and plasticization effects of carvacrol in biodegradable poly(lactic acid) and poly(butylene adipate terephthalate) blend films for bakery packaging. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112356] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Are Uropathogenic Bacteria Living in Multispecies Biofilm Susceptible to Active Plant Ingredient-Asiatic Acid? Biomolecules 2021; 11:biom11121754. [PMID: 34944398 PMCID: PMC8698853 DOI: 10.3390/biom11121754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 02/07/2023] Open
Abstract
Urinary tract infections (UTIs) are a serious health problem in the human population due to their chronic and recurrent nature. Bacteria causing UTIs form multispecies biofilms being resistant to the activity of the conventionally used antibiotics. Therefore, compounds of plant origin are currently being searched for, which could constitute an alternative strategy to antibiotic therapy. Our study aimed to determine the activity of asiatic acid (AA) against biofilms formed by uropathogenic Escherichia coli, Enterobacter cloacae, and Pseudomonas aeruginosa. The influence of AA on the survival, biofilm mass formation by bacteria living in mono-, dual-, and triple-species consortia as well as the metabolic activity and bacterial cell morphology were determined. The spectrophotometric methods were used for biofilm mass synthesis and metabolic activity determination. The survival of bacteria was established using the serial dilution assay. The decrease in survival and a weakening of the ability to create biofilms, both single and multi-species, as well as changes in the morphology of bacterial cells were noticed. As AA works best against young biofilms, the use of AA-containing formulations, especially during the initial stages of infection, seems to be reasonable. However, there is a need for further research concerning AA especially regarding its antibacterial mechanisms of action.
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12
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Scaffaro R, Maio A, D'Arrigo M, Lopresti F, Marino A, Bruno M, Nostro A. Flexible mats as promising antimicrobial systems via integration of Thymus capitatus (L.) essential oil into PLA. Future Microbiol 2021; 15:1379-1392. [PMID: 33085542 DOI: 10.2217/fmb-2019-0291] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Aim: To develop electrospun mats loaded with Thymus capitatus (L.) essential oil (ThymEO) and to study their morpho-mechanical and antimicrobial properties. Materials & methods: Poly(lactic acid) (PLA) mats containing ThymEO were prepared by electrospinning. The effect of ThymEO on the morpho-mechanical properties of fibers was assayed by scanning electron microscopy and dynamometer measurements. The antimicrobial activity of ThymEO delivered either in liquid or vapor phase was assessed through killing curves and invert Petri dishes method. The cytotoxicity was also investigated. Results: The mechanical properties were enhanced by integrating ThymEO into PLA. Both liquid and vapors of ThymEO released from mats caused reductions of microbial viable cells. Negligible cytotoxicity was demonstrated. Conclusion: PLA/ThymEO delivery systems could be suitable for treating microbial infections.
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Affiliation(s)
- Roberto Scaffaro
- Department of Engineering, University of Palermo, Viale delle Scienze Ed. 6, Palermo, 90128, Italy
| | - Andrea Maio
- Department of Engineering, University of Palermo, Viale delle Scienze Ed. 6, Palermo, 90128, Italy
| | - Manuela D'Arrigo
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, Polo Annunziata, University of Messina, Messina, 98168, Italy
| | - Francesco Lopresti
- Department of Engineering, University of Palermo, Viale delle Scienze Ed. 6, Palermo, 90128, Italy
| | - Andreana Marino
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, Polo Annunziata, University of Messina, Messina, 98168, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical & Pharmaceutical Sciences & Technologies, University of Palermo, Viale delle Scienze Ed. 16, Palermo, 90128, Italy
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, Polo Annunziata, University of Messina, Messina, 98168, Italy
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13
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Carson L, Merkatz R, Martinelli E, Boyd P, Variano B, Sallent T, Malcolm RK. The Vaginal Microbiota, Bacterial Biofilms and Polymeric Drug-Releasing Vaginal Rings. Pharmaceutics 2021; 13:pharmaceutics13050751. [PMID: 34069590 PMCID: PMC8161251 DOI: 10.3390/pharmaceutics13050751] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 12/26/2022] Open
Abstract
The diversity and dynamics of the microbial species populating the human vagina are increasingly understood to play a pivotal role in vaginal health. However, our knowledge about the potential interactions between the vaginal microbiota and vaginally administered drug delivery systems is still rather limited. Several drug-releasing vaginal ring products are currently marketed for hormonal contraception and estrogen replacement therapy, and many others are in preclinical and clinical development for these and other clinical indications. As with all implantable polymeric devices, drug-releasing vaginal rings are subject to surface bacterial adherence and biofilm formation, mostly associated with endogenous microorganisms present in the vagina. Despite more than 50 years since the vaginal ring concept was first described, there has been only limited study and reporting around bacterial adherence and biofilm formation on rings. With increasing interest in the vaginal microbiome and vaginal ring technology, this timely review article provides an overview of: (i) the vaginal microbiota, (ii) biofilm formation in the human vagina and its potential role in vaginal dysbiosis, (iii) mechanistic aspects of biofilm formation on polymeric surfaces, (iv) polymeric materials used in the manufacture of vaginal rings, (v) surface morphology characteristics of rings, (vi) biomass accumulation and biofilm formation on vaginal rings, and (vii) regulatory considerations.
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Affiliation(s)
- Louise Carson
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (L.C.); (P.B.)
| | - Ruth Merkatz
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Elena Martinelli
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Peter Boyd
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (L.C.); (P.B.)
| | - Bruce Variano
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Teresa Sallent
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Robert Karl Malcolm
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (L.C.); (P.B.)
- Correspondence:
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14
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Contribution of Essential Oils to the Fight against Microbial Biofilms—A Review. Processes (Basel) 2021. [DOI: 10.3390/pr9030537] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The increasing clinical use of artificial medical devices raises the issue of microbial contamination, which is a risk factor for the occurrence of biofilm-associated infections. A huge amount of scientific data highlights the promising potential of essential oils (EOs) to be used for the development of novel antibiofilm strategies. We aimed to review the relevant literature indexed in PubMed and Embase and to identify the recent directions in the field of EOs, as a new modality to eradicate microbial biofilms. We paid special attention to studies that explain the mechanisms of the microbicidal and antibiofilm activity of EOs, as well as their synergism with other antimicrobials. The EOs are difficult to test for their antimicrobial activity due to lipophilicity and volatility, so we have presented recent methods that facilitate these tests. There are presented the applications of EOs in chronic wounds and biofilm-mediated infection treatment, in the food industry and as air disinfectants. This analysis concludes that EOs are a source of antimicrobial agents that should not be neglected and that will probably provide new anti-infective therapeutic agents.
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Phage φAB6-Borne Depolymerase Combats Acinetobacter baumannii Biofilm Formation and Infection. Antibiotics (Basel) 2021; 10:antibiotics10030279. [PMID: 33803296 PMCID: PMC7998257 DOI: 10.3390/antibiotics10030279] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 12/19/2022] Open
Abstract
Biofilm formation is one of the main causes of increased antibiotic resistance in Acinetobacter baumannii infections. Bacteriophages and their derivatives, such as tail proteins with depolymerase activity, have shown considerable potential as antibacterial or antivirulence agents against bacterial infections. Here, we gained insights into the activity of a capsular polysaccharide (CPS) depolymerase, derived from the tailspike protein (TSP) of φAB6 phage, to degrade A. baumannii biofilm in vitro. Recombinant TSP showed enzymatic activity and was able to significantly inhibit biofilm formation and degrade formed biofilms; as low as 0.78 ng, the inhibition zone can still be formed on the bacterial lawn. Additionally, TSP inhibited the colonization of A. baumannii on the surface of Foley catheter sections, indicating that it can be used to prevent the adhesion of A. baumannii to medical device surfaces. Transmission and scanning electron microscopy demonstrated membrane leakage of bacterial cells treated with TSP, resulting in cell death. The therapeutic effect of TSP in zebrafish was also evaluated and the results showed that the survival rate was significantly improved (80%) compared with that of the untreated control group (10%). Altogether, we show that TSP derived from φAB6 is expected to become a new antibiotic against multi-drug resistant A. baumannii and a biocontrol agent that prevents the formation of biofilms on medical devices.
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Rossi C, Chaves-López C, Serio A, Casaccia M, Maggio F, Paparella A. Effectiveness and mechanisms of essential oils for biofilm control on food-contact surfaces: An updated review. Crit Rev Food Sci Nutr 2020; 62:2172-2191. [PMID: 33249878 DOI: 10.1080/10408398.2020.1851169] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Microbial biofilms represent a constant source of contamination in the food industry, being also a real threat for human health. In fact, most of biofilm-producing bacteria are becoming resistant to sanitizers, thus arousing the interest in natural alternatives to prevent biofilm formation on foods and food-contact surfaces. In particular, studies on biofilm control by essential oils (EOs) application are increasing, being EOs characterized by unique mixtures of compounds able to impair the mechanisms of biofilm development. This review reports the anti-biofilm properties of EOs in bacterial biofilm control (inhibition, removal and prevention of biofilm dispersion) on food-contact surfaces. The relationship between EOs effect and composition, concentration, involved bacteria, and surfaces is discussed, and the possible sites of action are also elucidated. The findings prove the high biofilm controlling capability of EOs through the regulation of genes and proteins implicated in motility, Quorum Sensing and exopolysaccharides (EPS) matrix. Moreover, incorporation in nanosized delivery systems, formulation of blends and combination of EOs with other strategies can increase their anti-biofilm activity. This review provides an overview of the current knowledge of the EOs effectiveness in controlling bacterial biofilm on food-contact surfaces, providing valuable information for improving EOs use as sanitizers in food industries.
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Affiliation(s)
- Chiara Rossi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Clemencia Chaves-López
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Annalisa Serio
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Manila Casaccia
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Francesca Maggio
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Antonello Paparella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
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The Effects of Eugenol, Trans-Cinnamaldehyde, Citronellol, and Terpineol on Escherichia coli Biofilm Control as Assessed by Culture-Dependent and -Independent Methods. Molecules 2020; 25:molecules25112641. [PMID: 32517201 PMCID: PMC7321256 DOI: 10.3390/molecules25112641] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 11/16/2022] Open
Abstract
Bacterial biofilms contribute to problems with preserving food hygiene, jeopardizing any conventional intervention method used by the food industry. Hence, the approach of using essential oil (EO) compounds effective in biofilm control has considerable merit and deserves in-depth research. In this study, the effect of selected EO compounds (eugenol, trans-cinnamaldehyde, citronellol, and terpineol) was assessed on Escherichia coli biofilm control by plate count, resazurin assay, and Syto® 9/PI (-/propidium iodide) staining coupled with flow cytometry (FCM) and confocal laser scanning microscopy (CLSM). The selected EO compounds effectively inhibited the growth of planktonic E. coli at low concentrations of 3–5 mM, revealing a high antimicrobial activity. EO compounds markedly interfered with biofilms too, with trans-cinnamaldehyde causing the most prominent effects. Its antibiofilm activity was manifested by a high reduction of cell metabolic activity (>60%) and almost complete reduction in biofilm cell culturability. In addition, almost 90% of the total cells had perturbed cell membranes. Trans-cinnamaldehyde further impacted the cell morphology resulting in the filamentation and, thus, in the creation of a mesh network of cells. Citronellol scored the second in terms of the severity of the observed effects. However, most of all, it strongly prevented native microcolony formation. Eugenol and terpineol also affected the formation of a typical biofilm structure; however, small cell aggregates were still repeatedly found. Overall, eugenol caused the mildest impairment of cell membranes where 50% of the total cells showed the Syto® 9+/PI– pattern coupled with healthy cells and another 48% with injured cells (the Syto® 9+/PI+). For terpineol, despite a similar percentage of healthy cells, another 45% was shared between moderately (Syto® 9+PI+) and heavily (Syto® 9–PI+) damaged cells. The results highlight the importance of a multi-method approach for an accurate assessment of EO compounds’ action against biofilms and may help develop better strategies for their effective use in the food industry.
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Tonyali B, McDaniel A, Amamcharla J, Trinetta V, Yucel U. Release kinetics of cinnamaldehyde, eugenol, and thymol from sustainable and biodegradable active packaging films. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2020.100484] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Modjinou T, Versace DL, Abbad Andaloussi S, Langlois V, Renard E. Co-Networks Poly(hydroxyalkanoates)-Terpenes to Enhance Antibacterial Properties. Bioengineering (Basel) 2020; 7:E13. [PMID: 31972967 PMCID: PMC7148494 DOI: 10.3390/bioengineering7010013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 11/17/2022] Open
Abstract
Biocompatible and biodegradable bacterial polyesters, poly(hydroxyalkanoates) (PHAs), were combined with linalool, a well-known monoterpene, extracted from spice plants to design novel antibacterial materials. Their chemical association by a photo-induced thiol-ene reaction provided materials having both high mechanical resistance and flexibility. The influence of the nature of the crosslinking agent and the weight ratio of linalool on the thermo-mechanical performances were carefully evaluated. The elongation at break increases from 7% for the native PHA to 40% for PHA-linalool co-networks using a tetrafunctional cross-linking agent. The materials highlighted tremendous anti-adherence properties against Escherichia coli and Staphylococcus aureus by increasing linalool ratios. A significant decrease in antibacterial adhesion of 63% and 82% was observed for E. coli and S. aureus, respectively.
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Affiliation(s)
- Tina Modjinou
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
| | - Davy Louis Versace
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
| | - Samir Abbad Andaloussi
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94010 Créteil cedex, France;
| | - Valérie Langlois
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
| | - Estelle Renard
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
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20
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Marini E, Di Giulio M, Ginestra G, Magi G, Di Lodovico S, Marino A, Facinelli B, Cellini L, Nostro A. Efficacy of carvacrol against resistant rapidly growing mycobacteria in the planktonic and biofilm growth mode. PLoS One 2019; 14:e0219038. [PMID: 31260476 PMCID: PMC6602199 DOI: 10.1371/journal.pone.0219038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/16/2019] [Indexed: 12/12/2022] Open
Abstract
Rapidly growing mycobacteria (RGM) are environmental bacteria found worldwide with a propensity to produce skin and soft-tissue infections. Among them, the most clinically relevant species is Mycobacterium abscessus. Multiple resistance to antibiotics and the ability to form biofilm contributes considerably to the treatment failure. The search of novel anti-mycobacterial agents for the control of biofilm growth mode is crucial. The aim of the present study was to evaluate the activity of carvacrol (CAR) against planktonic and biofilm cells of resistant RGM strains. The susceptibility of RGM strains (n = 11) to antibiotics and CAR was assessed by MIC/MBC evaluation. The CAR activity was estimated by also vapour contact assay. The effect on biofilm formation and preformed biofilm was measured by evaluation of bacterial growth, biofilm biomass and biofilm metabolic activity. MIC values were equal to 64 μg/mL for most of RGM isolates (32–512 μg/mL), MBCs were 2–4 times higher than MICs, and MICs of vapours were lower (16 μg/mL for most RGM isolates) than MICs in liquid phase. Regarding the biofilm, CAR at concentrations of 1/2 × MIC and 1/4 × MIC showed a strong inhibition of biofilm formation (61–77%) and at concentration above the MIC (2–8 × MIC) produced significant inhibition of 4- and 8-day preformed biofilms. In conclusion, CAR could have a potential use, also in vapour phase, for the control of RGM.
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Affiliation(s)
- Emanuela Marini
- Unit of Microbiology, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Mara Di Giulio
- Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Giovanna Ginestra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Gloria Magi
- Unit of Microbiology, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Silvia Di Lodovico
- Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Andreana Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Bruna Facinelli
- Unit of Microbiology, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Luigina Cellini
- Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
- * E-mail:
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Scaffaro R, Maio A, Botta L, Gulino EF, Gulli D. Tunable release of Chlorhexidine from Polycaprolactone-based filaments containing graphene nanoplatelets. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.11.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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22
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Citronellol, a monoterpene alcohol with promising pharmacological activities - A systematic review. Food Chem Toxicol 2019; 123:459-469. [DOI: 10.1016/j.fct.2018.11.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/06/2018] [Accepted: 11/12/2018] [Indexed: 12/12/2022]
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23
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Mousavi Khaneghah A, Hashemi SMB, Limbo S. Antimicrobial agents and packaging systems in antimicrobial active food packaging: An overview of approaches and interactions. FOOD AND BIOPRODUCTS PROCESSING 2018. [DOI: 10.1016/j.fbp.2018.05.001] [Citation(s) in RCA: 208] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Scaffaro R, Lopresti F, Marino A, Nostro A. Antimicrobial additives for poly(lactic acid) materials and their applications: current state and perspectives. Appl Microbiol Biotechnol 2018; 102:7739-7756. [PMID: 30009322 DOI: 10.1007/s00253-018-9220-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/03/2018] [Accepted: 07/04/2018] [Indexed: 12/20/2022]
Abstract
Poly(lactic acid)-based antimicrobial materials received considerable attention as promising systems to control microbial growth. The remarkable physicochemical properties of PLA such as renewability, biodegradability, and US Food and Drug Administration (FDA) approval for clinical use open up interesting perspectives for application in food packaging and biomedical materials. Nowadays, there is an increasing consumer demands for fresh, high-quality, and natural foods packaged with environmentally friendly materials that prolong the shelf life. The incorporation of antimicrobial agents into PLA-based polymers is likely to lead to the next generation of packaging materials. The development of antimicrobial PLA materials as a delivery system or coating for biomedical devices is also advantageous in order to reduce possible dose-dependent side effects and limit the phenomena of antibiotic resistance. This mini-review summarizes the most recent advances made in antimicrobial PLA-based polymers including their preparation, biocidal action, and applications. It also highlights the potential of PLA systems as efficient stabilizers-carriers of various kinds of antimicrobial additives including essential oils and other natural compounds, active particles and nanoparticles, and conventional and synthetic molecules.
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Affiliation(s)
- Roberto Scaffaro
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, RU INSTM, Università di Palermo, Viale delle Scienze Ed. 6, 90128, Palermo, Italy
| | - Francesco Lopresti
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, RU INSTM, Università di Palermo, Viale delle Scienze Ed. 6, 90128, Palermo, Italy
| | - Andreana Marino
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Polo Annunziata, Università degli Studi di Messina, 98168, Messina, Italy
| | - Antonia Nostro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche e Ambientali, Polo Annunziata, Università degli Studi di Messina, 98168, Messina, Italy.
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25
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Scaffaro R, Lopresti F, D’Arrigo M, Marino A, Nostro A. Efficacy of poly(lactic acid)/carvacrol electrospun membranes against Staphylococcus aureus and Candida albicans in single and mixed cultures. Appl Microbiol Biotechnol 2018. [DOI: 10.1007/s00253-018-8879-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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26
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Processing, structure, property relationships and release kinetics of electrospun PLA/Carvacrol membranes. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.01.035] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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27
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Borges A, Lopez-Romero JC, Oliveira D, Giaouris E, Simões M. Prevention, removal and inactivation of Escherichia coli and Staphylococcus aureus biofilms using selected monoterpenes of essential oils. J Appl Microbiol 2017; 123:104-115. [PMID: 28497526 DOI: 10.1111/jam.13490] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/27/2017] [Accepted: 05/06/2017] [Indexed: 02/04/2023]
Abstract
AIMS The aim of this study was to investigate the antibiofilm potential of five essential oil (EO) components with cyclic (sabinene-SAB, carveol-C1, carvone-C2) and acyclic (citronellol-C3 and citronellal-C4) structures against Escherichia coli and Staphylococcus aureus. METHODS AND RESULTS The selected EO components prevented biofilm set-up, with C3 and C4 causing remarkable effects. When applied against pre-established biofilms, they promoted high biomass removal and inactivation of biofilm cells. Moreover, no viable E. coli biofilm cells were detected after exposure to SAB at 5 × MIC and 10 × MIC, and a significant viability decrease was observed for both bacteria with the other EO components. SAB, C3 and C4 caused the most prominent effects apparently due to their octanol-water partition coefficient (Po/w), the number of rotatable bonds (n-ROTB) and the free hydroxyl groups. CONCLUSIONS The overall results demonstrated that the selected EO components, particularly SAB, C3 and C4 are of interest as new lead molecules to both prevent biofilm set-up and to control pre-established biofilms of E. coli and S. aureus. SIGNIFICANCE AND IMPACT OF THE STUDY The tested EO components exhibited prominent antibiofilm properties against E. coli and S. aureus providing a novel and effective alternative/complementary approach to counteract chronic infections and the transmission of diseases in clinical settings.
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Affiliation(s)
- A Borges
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - J C Lopez-Romero
- CIAD, Research Center for Food and Development, Hermosillo, Sonora, Mexico
| | - D Oliveira
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - E Giaouris
- Department of Food Science and Nutrition, Faculty of the Environment, University of the Aegean, Myrina, Lemnos Island, Greece
| | - M Simões
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
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Oloketuyi SF, Khan F. Inhibition strategies of Listeria monocytogenes biofilms-current knowledge and future outlooks. J Basic Microbiol 2017; 57:728-743. [PMID: 28594071 DOI: 10.1002/jobm.201700071] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/12/2017] [Accepted: 05/12/2017] [Indexed: 12/30/2022]
Abstract
There is an increasing trend in the food industry on the Listeria monocytogenes biofilm formation and inhibition. This is attributed to its easy survival on contact surfaces, resistance to disinfectants or antibiotics and growth under the stringent condition used for food processing and preservation thereby leading to food contamination products by direct or indirect exposure. Though, there is a lack of conclusive evidences about the mechanism of biofilm formation, in this review, the concept of biofilm formation and various chemical, physical, and green technology approaches to prevent or control the biofilm formed is discussed. State-of-the-art approaches ranging from the application of natural to synthetic molecules with high effectiveness and non-toxicity targeted at the different steps of biofilm formation could positively influence the biofilm inhibition in the future.
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Affiliation(s)
- Sandra F Oloketuyi
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
| | - Fazlurrahman Khan
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, U.P., India
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Incorporation of an Antibiotic in Poly(Lactic Acid) and Polypropylene by Melt Processing. J Appl Biomater Funct Mater 2016; 14:e240-7. [DOI: 10.5301/jabfm.5000285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2016] [Indexed: 01/20/2023] Open
Abstract
Purpose In this work an antibiotic, ciprofloxacin (CFX), was incorporated into 2 different polymeric matrices, poly(lactic acid) (PLA) and polypropylene (PP), to provide them with antimicrobial properties. The influence of CFX content on release kinetics and on antimicrobial and mechanical properties was evaluated. Methods CFX was incorporated into both the polymers by melt mixing. Results The effect of CFX incorporation was found to strongly depend on which polymer matrix was used. In particular, the antimicrobial tests revealed that PLA samples containing CFX produced no inhibition zone and only a slight antibacterial activity was observed when the highest concentration of CFX was added to PLA. On the contrary, PP-based materials incorporating CFX, even those containing the smallest concentration of antibiotic, showed antimicrobial activity. These results were found to be in good agreement with the evaluation of the CFX release. Conclusions The negative findings of PLA-based systems are attributed to degradation phenomena that occur during the melt processing, involving some interaction between PLA and CFX. A proposed reaction mechanism between CFX and PLA occurring in the melt is presented.
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30
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Scaffaro R, Botta L, Maio A, Mistretta MC, La Mantia FP. Effect of Graphene Nanoplatelets on the Physical and Antimicrobial Properties of Biopolymer-Based Nanocomposites. MATERIALS 2016; 9:ma9050351. [PMID: 28773475 PMCID: PMC5503009 DOI: 10.3390/ma9050351] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 04/29/2016] [Accepted: 05/02/2016] [Indexed: 12/15/2022]
Abstract
In this work, biopolymer-based nanocomposites with antimicrobial properties were prepared via melt-compounding. In particular, graphene nanoplatelets (GnPs) as fillers and an antibiotic, i.e., ciprofloxacin (CFX), as biocide were incorporated in a commercial biodegradable polymer blend of poly(lactic acid) (PLA) and a copolyester (BioFlex®). The prepared materials were characterized by scanning electron microscopy (SEM), and rheological and mechanical measurements. Moreover, the effect of GnPs on the antimicrobial properties and release kinetics of CFX was evaluated. The results indicated that the incorporation of GnPs increased the stiffness of the biopolymeric matrix and allowed for the tuning of the release of CFX without hindering the antimicrobial activity of the obtained materials.
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Affiliation(s)
- Roberto Scaffaro
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, UdR INSTM di Palermo, Viale delle Scienze, Palermo 90128, Italy.
| | - Luigi Botta
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, UdR INSTM di Palermo, Viale delle Scienze, Palermo 90128, Italy.
| | - Andrea Maio
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, UdR INSTM di Palermo, Viale delle Scienze, Palermo 90128, Italy.
| | - Maria Chiara Mistretta
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, UdR INSTM di Palermo, Viale delle Scienze, Palermo 90128, Italy.
| | - Francesco Paolo La Mantia
- Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, UdR INSTM di Palermo, Viale delle Scienze, Palermo 90128, Italy.
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31
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Alves S, Duarte A, Sousa S, Domingues FC. Study of the major essential oil compounds of Coriandrum sativum against Acinetobacter baumannii and the effect of linalool on adhesion, biofilms and quorum sensing. BIOFOULING 2016; 32:155-165. [PMID: 26901586 DOI: 10.1080/08927014.2015.1133810] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 12/10/2015] [Indexed: 06/05/2023]
Abstract
Acinetobacter baumannii is a pathogen that has the ability to adhere to surfaces in the hospital environment and to form biofilms which are increasingly resistant to antimicrobial agents. The aim of this work was to study the antimicrobial activity of the major oil compounds of Coriandrum sativum against A. baumannii. The effect of linalool on planktonic cells and biofilms of A. baumannii on different surfaces, as well as its effect on adhesion and quorum sensing was evaluated. From all the compounds evaluated, linalool was the compound with the best antibacterial activity, with minimum inhibitory concentration values between 2 and 8 μl ml(-1). Linalool also inhibited biofilm formation and dispersed established biofilms of A. baumannii, changed the adhesion of A. baumannii to surfaces and interfered with the quorum- sensing system. Thus, linalool could be a promising antimicrobial agent for controlling planktonic cells and biofilms of A. baumannii.
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Affiliation(s)
- Susana Alves
- a CICS-UBI - Health Sciences Research Centre , University of Beira Interior , Covilhã , Portugal
| | - Andreia Duarte
- a CICS-UBI - Health Sciences Research Centre , University of Beira Interior , Covilhã , Portugal
| | - Sónia Sousa
- b Fiber Materials and Environmental Technologies Research Unit , University of Beira Interior , Covilhã , Portugal
| | - Fernanda C Domingues
- a CICS-UBI - Health Sciences Research Centre , University of Beira Interior , Covilhã , Portugal
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32
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Gutiérrez D, Briers Y, Rodríguez-Rubio L, Martínez B, Rodríguez A, Lavigne R, García P. Role of the Pre-neck Appendage Protein (Dpo7) from Phage vB_SepiS-phiIPLA7 as an Anti-biofilm Agent in Staphylococcal Species. Front Microbiol 2015; 6:1315. [PMID: 26635776 PMCID: PMC4658415 DOI: 10.3389/fmicb.2015.01315] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 11/09/2015] [Indexed: 01/10/2023] Open
Abstract
Staphylococcus epidermidis and Staphylococcus aureus are important causative agents of hospital-acquired infections and bacteremia, likely due to their ability to form biofilms. The production of a dense exopolysaccharide (EPS) matrix enclosing the cells slows the penetration of antibiotic down, resulting in therapy failure. The EPS depolymerase (Dpo7) derived from bacteriophage vB_SepiS-phiIPLA7, was overexpressed in Escherichia coli and characterized. A dose dependent but time independent response was observed after treatment of staphylococcal 24 h-biofilms with Dpo7. Maximum removal (>90%) of biofilm-attached cells was obtained with 0.15 μM of Dpo7 in all polysaccharide producer strains but Dpo7 failed to eliminate polysaccharide-independent biofilm formed by S. aureus V329. Moreover, the pre-treatment of polystyrene surfaces with Dpo7 reduced the biofilm biomass by 53–85% in the 67% of the tested strains. This study supports the use of phage-encoded EPS depolymerases to prevent and disperse staphylococcal biofilms, thereby making bacteria more susceptible to the action of antimicrobials.
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Affiliation(s)
- Diana Gutiérrez
- Consejo Superior de Investigaciones Científicas - Instituto de Productos Lácteos de Asturias Villaviciosa, Spain
| | - Yves Briers
- Laboratory of Gene Technology, KU Leuven Heverlee, Belgium ; Laboratory of Applied Biotechnology, Ghent University Ghent, Belgium
| | - Lorena Rodríguez-Rubio
- Consejo Superior de Investigaciones Científicas - Instituto de Productos Lácteos de Asturias Villaviciosa, Spain ; Laboratory of Gene Technology, KU Leuven Heverlee, Belgium
| | - Beatriz Martínez
- Consejo Superior de Investigaciones Científicas - Instituto de Productos Lácteos de Asturias Villaviciosa, Spain
| | - Ana Rodríguez
- Consejo Superior de Investigaciones Científicas - Instituto de Productos Lácteos de Asturias Villaviciosa, Spain
| | - Rob Lavigne
- Laboratory of Gene Technology, KU Leuven Heverlee, Belgium
| | - Pilar García
- Consejo Superior de Investigaciones Científicas - Instituto de Productos Lácteos de Asturias Villaviciosa, Spain
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33
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Effect of Eugenol against Streptococcus agalactiae and Synergistic Interaction with Biologically Produced Silver Nanoparticles. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:861497. [PMID: 25945115 PMCID: PMC4405296 DOI: 10.1155/2015/861497] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 03/26/2015] [Indexed: 02/07/2023]
Abstract
Streptococcus agalactiae (group B streptococci (GBS)) is an important infections agent in newborns associated with maternal vaginal colonization. Intrapartum antibiotic prophylaxis in GBS-colonized pregnant women has led to a significant reduction in the incidence of early neonatal infection in various geographic regions. However, this strategy may lead to resistance selecting among GBS, indicating the need for new alternatives to prevent bacterial transmission and even to treat GBS infections. This study reported for the first time the effect of eugenol on GBS isolated from colonized women, alone and in combination with silver nanoparticles produced by Fusarium oxysporum (AgNPbio). Eugenol showed a bactericidal effect against planktonic cells of all GBS strains, and this effect appeared to be time-dependent as judged by the time-kill curves and viability analysis. Combination of eugenol with AgNPbio resulted in a strong synergistic activity, significantly reducing the minimum inhibitory concentration values of both compounds. Scanning and transmission electron microscopy revealed fragmented cells and changes in bacterial morphology after incubation with eugenol. In addition, eugenol inhibited the viability of sessile cells during biofilm formation and in mature biofilms. These results indicate the potential of eugenol as an alternative for controlling GBS infections.
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34
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Nostro A, Scaffaro R, Botta L, Filocamo A, Marino A, Bisignano G. Effect of temperature on the release of carvacrol and cinnamaldehyde incorporated into polymeric systems to control growth and biofilms of Escherichia coli and Staphylococcus aureus. BIOFOULING 2015; 31:639-649. [PMID: 26362127 DOI: 10.1080/08927014.2015.1079703] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study assessed the effect of temperature on the release of essential oil components incorporated by melt compounding into polymeric films. Specifically, polyethylene-co-vinylacetate (EVA) films containing carvacrol (CAR) and cinnamaldehyde (ALD), alone and in combination, were prepared and their surface and mechanical properties and antibacterial and anti-biofilm activity against Escherichia coli and Staphylococcus aureus were evaluated. The addition of ALD and CAR did not provoke variation in the surface morphology of EVA and allowed their delivery. At 37°C, films containing CAR, ALD or their combination (25+75%) were found to have the strongest bactericidal effect, whereas at lower temperatures a lower killing rate was observed. There was no clear evidence of the influence of temperature on the anti-biofilm activity of the essential oil component-based polymeric films. The biomass formed on EVA containing ALD, CAR or their combination (25+75) was significantly lower (60-80% reduction) than that formed on the EVA control at both 37° and 22°C.
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Affiliation(s)
- A Nostro
- a Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute , University of Messina , Messina , Sicily , Italy
| | - R Scaffaro
- b Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale e dei Materiali , University of Palermo, UdR INSTM di Palermo , Palermo , Sicily , Italy
| | - L Botta
- b Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale e dei Materiali , University of Palermo, UdR INSTM di Palermo , Palermo , Sicily , Italy
| | - A Filocamo
- a Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute , University of Messina , Messina , Sicily , Italy
| | - A Marino
- a Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute , University of Messina , Messina , Sicily , Italy
| | - G Bisignano
- a Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute , University of Messina , Messina , Sicily , Italy
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35
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Shemesh R, Krepker M, Natan M, Danin-Poleg Y, Banin E, Kashi Y, Nitzan N, Vaxman A, Segal E. Novel LDPE/halloysite nanotube films with sustained carvacrol release for broad-spectrum antimicrobial activity. RSC Adv 2015. [DOI: 10.1039/c5ra16583k] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Halloysite nanotubes are employed as nanocarriers of carvacrol, allowing for its high-temperature melt compounding with polyethylene, and resulting in highly potent antimicrobial films.
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Affiliation(s)
- R. Shemesh
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
- Carmel Olefins Ltd
| | - M. Krepker
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
| | - M. Natan
- Institute for Nanotechnology and Advanced Materials
- The Mina and Everard Goodman Faculty of Life Sciences
- Bar-Ilan University
- Ramat-Gan 52900
- Israel
| | - Y. Danin-Poleg
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
| | - E. Banin
- Institute for Nanotechnology and Advanced Materials
- The Mina and Everard Goodman Faculty of Life Sciences
- Bar-Ilan University
- Ramat-Gan 52900
- Israel
| | - Y. Kashi
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
| | - N. Nitzan
- StePac L.A./DS Smith Plastics
- Western Galilee 24959
- Israel
| | | | - E. Segal
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
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36
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Wood NJ, Maddocks SE, Grady HJ, Collins AM, Barbour ME. Functionalization of ethylene vinyl acetate with antimicrobial chlorhexidine hexametaphosphate nanoparticles. Int J Nanomedicine 2014; 9:4145-52. [PMID: 25206305 PMCID: PMC4157624 DOI: 10.2147/ijn.s65343] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Ethylene vinyl acetate (EVA) is in widespread use as a polymeric biomaterial with diverse applications such as intravitreal devices, catheters, artificial organs, and mouthguards. Many biomaterials are inherently prone to bacterial colonization, as the human body is host to a vast array of microbes. This can lead to infection at the biomaterial’s site of implantation or application. In this study, EVA was coated with chlorhexidine (CHX) hexametaphosphate (HMP) nanoparticles (NPs) precipitated using two different reagent concentrations: CHX-HMP-5 (5 mM CHX and HMP) and CHX-HMP-0.5 (0.5 mM CHX and HMP). Data gathered using dynamic light scattering, transmission electron microscopy, and atomic force microscopy indicated that the NPs were polydisperse, ~40–80 nm in diameter, and aggregated in solution to form clusters of ~140–200 nm and some much larger aggregates of 4–5 μM. CHX-HMP-5 formed large deposits on the polymer surface discernible using scanning electron microscopy, whereas CHX-HMP-0.5 did not. Soluble CHX was released by CHX-HMP-5 NP-coated surfaces over the experimental period of 56 days. CHX-HMP-5 NPs prevented growth of methicillin-resistant Staphylococcus aureus when applied to the polymer surfaces, and also inhibited or prevented growth of Pseudomonas aeruginosa with greater efficacy when the NP suspension was not rinsed from the polymer surface, providing a greater NP coverage. This approach may provide a useful means to treat medical devices fabricated from EVA to render them resistant to colonization by pathogenic microorganisms.
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Affiliation(s)
- Natalie J Wood
- Oral Nanoscience, School of Oral and Dental Sciences, University of Bristol, UK ; Bristol Centre for Functional Nanomaterials, University of Bristol, UK ; Centre for Organised Matter Chemistry, School of Chemistry, University of Bristol, UK
| | | | - Helena J Grady
- Oral Nanoscience, School of Oral and Dental Sciences, University of Bristol, UK ; Bristol Centre for Functional Nanomaterials, University of Bristol, UK
| | - Andrew M Collins
- Bristol Centre for Functional Nanomaterials, University of Bristol, UK
| | - Michele E Barbour
- Oral Nanoscience, School of Oral and Dental Sciences, University of Bristol, UK
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37
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Jahid IK, Ha SD. The Paradox of Mixed-Species Biofilms in the Context of Food Safety. Compr Rev Food Sci Food Saf 2014. [DOI: 10.1111/1541-4337.12087] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Iqbal Kabir Jahid
- School of Food Science and Technology; Chung-Ang Univ; 72-1 Nae-Ri, Daedeok-Myun Anseong-Si Gyeonggi-do 456-756 South Korea
- Dept. of Microbiology; Jessore Univ. of Science and Technology; Jessore-7408 Bangladesh
| | - Sang-Do Ha
- School of Food Science and Technology; Chung-Ang Univ; 72-1 Nae-Ri, Daedeok-Myun Anseong-Si Gyeonggi-do 456-756 South Korea
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38
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Nguyen UT, Burrows LL. DNase I and proteinase K impair Listeria monocytogenes biofilm formation and induce dispersal of pre-existing biofilms. Int J Food Microbiol 2014; 187:26-32. [PMID: 25043896 DOI: 10.1016/j.ijfoodmicro.2014.06.025] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 05/19/2014] [Accepted: 06/28/2014] [Indexed: 12/15/2022]
Abstract
Current sanitation methods in the food industry are not always sufficient for prevention or dispersal of Listeria monocytogenes biofilms. Here, we determined if prevention of adherence or dispersal of existing biofilms could occur if biofilm matrix components were disrupted enzymatically. Addition of DNase during biofilm formation reduced attachment (<50% of control) to polystyrene. Treatment of established 72h biofilms with 100μg/ml of DNase for 24h induced incomplete biofilm dispersal, with <25% biofilm remaining compared to control. In contrast, addition of proteinase K completely inhibited biofilm formation, and 72h biofilms-including those grown under stimulatory conditions-were completely dispersed with 100μg/ml proteinase K. Generally-regarded-as-safe proteases bromelain and papain were less effective dispersants than proteinase K. In a time course assay, complete dispersal of L. monocytogenes biofilms from both polystyrene and type 304H food-grade stainless steel occurred within 5min at proteinase K concentrations above 25μg/ml. These data confirm that both DNA and proteins are required for L. monocytogenes biofilm development and maintenance, and that these components of the biofilm matrix can be targeted for effective prevention and removal of biofilms.
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Affiliation(s)
- Uyen T Nguyen
- Department of Biochemistry and Biomedical Sciences and the Michael G. DeGroote Institute for Infectious Diseases Research, McMaster University, Hamilton, ON, Canada
| | - Lori L Burrows
- Department of Biochemistry and Biomedical Sciences and the Michael G. DeGroote Institute for Infectious Diseases Research, McMaster University, Hamilton, ON, Canada.
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