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Jackson KC, Clancey E, Call DR, Lofgren E. 3D Printers in Hospitals: Bacterial Contamination of Common and Antimicrobial 3D-Printed Material. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.30.587440. [PMID: 38585826 PMCID: PMC10996589 DOI: 10.1101/2024.03.30.587440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
COVID-19 has presented hospitals with unique challenges. A SHEA Research Network survey showed that 40% reported "limited" or worse levels of personal protective equipment (PPE), and 13% were self-producing PPE to address those deficits, including 3D-printed items. However, we do not know how efficiently, if at all, 3D-printed materials can be disinfected. Additionally, two filaments, PLACTIVE and BIOGUARD, claim to be antimicrobial; they use copper nanocomposites and silver ions to reduce bacterial populations. We assess how PLACTIVE and BIOGUARD may be contaminated and how well they reduce contamination, and how readily Polylactic Acid (PLA), a standard 3D-printed material, may be disinfected. 3D-printed materials, including PLACTIVE and BIOGUARD, are readily contaminated with bacteria that are common in hospitals and can sustain that contamination. Our findings reveal that the levels of contamination on PLACTIVE and BIOGUARD can vary under specific conditions such as layer height or bacterial contact time, sometimes surpassing or falling short of PLA. However, disinfected disks had lower overall CFU averages than those that were not, but the level of disinfection was variable, and bacterial populations recovered hours after disinfection application. Proper disinfection and using appropriate 3D-printed materials are essential to limit bacterial contamination. 3D printers and their products can be invaluable for hospitals, especially when supplies are low, and healthcare worker safety is paramount. Environmental services should be made aware of the presence of antimicrobial 3D-printed materials, and patients should be discouraged from printing their own items for use in hospital environments.
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Affiliation(s)
- Katelin C. Jackson
- Paul G. Allen School for Global Health; Washington State University, Pullman, WA, USA
| | - Erin Clancey
- Paul G. Allen School for Global Health; Washington State University, Pullman, WA, USA
| | - Douglas R. Call
- Paul G. Allen School for Global Health; Washington State University, Pullman, WA, USA
| | - Eric Lofgren
- Paul G. Allen School for Global Health; Washington State University, Pullman, WA, USA
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Conde A, Voces D, Medel-Plaza M, Perales C, de Ávila AI, Aguilera-Correa JJ, de Damborenea JJ, Esteban J, Domingo E, Arenas MA. Fluoride anodic films on stainless-steel fomites to reduce transmission infections. Appl Environ Microbiol 2024; 90:e0189223. [PMID: 38289132 PMCID: PMC10880592 DOI: 10.1128/aem.01892-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/05/2024] [Indexed: 02/22/2024] Open
Abstract
The growing concern arising from viruses with pandemic potential and multi-resistant bacteria responsible for hospital-acquired infections and outbreaks of food poisoning has led to an increased awareness of indirect contact transmission. This has resulted in a renewed interest to confer antimicrobial properties to commonly used metallic materials. The present work provides a full characterization of optimized fluoride anodic films grown in stainless steel 304L as well as their antimicrobial properties. Antibacterial tests show that the anodic film, composed mainly of chromium and iron fluorides, reduces the count and the percentage of the area covered by 50% and 87.7% for Pseudomonas aeruginosa and Stenotrophomonas maltophilia, respectively. Virologic tests show that the same treatment reduces the infectivity of the coronavirus HCoV-229E-GFP, in comparison with the non-anodized stainless steel 304L.IMPORTANCEThe importance of environmental surfaces as a source of infection is a topic of particular interest today, as many microorganisms can survive on these surfaces and infect humans through direct contact. Modification of these surfaces by anodizing has been shown to be useful for some alloys of medical interest. This work evaluates the effect of anodizing on stainless steel, a metal widely used in a variety of applications. According to the study, the fluoride anodic layers reduce the colonization of the surfaces by both bacteria and viruses, thus reducing the risk of acquiring infections from these sources.
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Affiliation(s)
- Ana Conde
- Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC, Madrid, Spain
- CIBERINFEC, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Infecciosas, Madrid, Spain
| | - Daniel Voces
- Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC, Madrid, Spain
| | | | - Celia Perales
- IIS-Fundación Jiménez Díaz, IIS-FJD, Madrid, Spain
- Centro Nacional de Biotecnología, CNB-CSIC, Madrid, Spain
- CIBEREHD, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Hepáticas y Digestivas, Madrid, Spain
| | - Ana Isabel de Ávila
- CIBEREHD, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Hepáticas y Digestivas, Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (CBMSO) (CSIC-UAM), Madrid, Spain
| | - John Jairo Aguilera-Correa
- CIBERINFEC, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Infecciosas, Madrid, Spain
- Pathogénie mycobactérienne et nouvelles cibles thérapeutiques, Institut de Recherche en Infectiologie de Montpellier, Montpellier, France
| | - Juan Jose de Damborenea
- Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC, Madrid, Spain
- CIBERINFEC, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Infecciosas, Madrid, Spain
| | - Jaime Esteban
- CIBERINFEC, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Infecciosas, Madrid, Spain
- IIS-Fundación Jiménez Díaz, IIS-FJD, Madrid, Spain
| | - Esteban Domingo
- CIBEREHD, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Hepáticas y Digestivas, Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (CBMSO) (CSIC-UAM), Madrid, Spain
| | - Maria Angeles Arenas
- Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC, Madrid, Spain
- CIBERINFEC, CENTRO DE INVESTIGACIÓN BIOMEDICA EN RED Enfermedades Infecciosas, Madrid, Spain
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Menéndez Miranda M, Liu W, Godinez-Leon JA, Amanova A, Houel-Renault L, Lampre I, Remita H, Gref R. Colloidal Silver Nanoparticles Obtained via Radiolysis: Synthesis Optimization and Antibacterial Properties. Pharmaceutics 2023; 15:1787. [PMID: 37513974 PMCID: PMC10383763 DOI: 10.3390/pharmaceutics15071787] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
Silver nanoparticles (AgNPs) with broad-spectrum antimicrobial properties are gaining increasing interest in fighting multidrug-resistant bacteria. Herein, we describe the synthesis of AgNPs, stabilized by polyvinyl alcohol (PVA), with high purity and homogeneous sizes, using radiolysis. Solvated electrons and reducing radicals are induced from solvent radiolysis and no other chemical reducing agents are needed to reduce the metal ions. Another advantage of this method is that it leads to sterile colloidal suspensions, which can be directly used for medical applications. We systematically investigated the effect of the silver salt precursor on the optical properties, particle size, and morphology of the resulting colloidal AgNPs. With Ag2SO4 precursor, the AgNPs displayed a narrow size distribution (20 ± 2 nm). In contrast, AgNO3 and AgClO4 precursors lead to inhomogeneous AgNPs of various shapes. Moreover, the optimized AgNPs synthesized from Ag2SO4 were stable upon storage in water and phosphate-buffered saline (PBS) and were very effective in inhibiting the growth of Staphylococcus aureus (S. aureus) at a concentration of 0.6 μg·mL-1 while completely eradicating it at a concentration of 5.6 μg·mL-1. When compared with other AgNPs prepared by other strategies, the remarkable bactericidal ability against S. aureus of the AgNPs produced here opens up new perspectives for further applications in medicine, cosmetics, the food industry, or in elaborating antibacterial surfaces and other devices.
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Affiliation(s)
- Mario Menéndez Miranda
- Institut de Sciences Moléculaires d'Orsay, CNRS-UMR 8214, Université Paris-Saclay, 91400 Orsay, France
| | - Wenbo Liu
- Institut de Sciences Moléculaires d'Orsay, CNRS-UMR 8214, Université Paris-Saclay, 91400 Orsay, France
| | | | - Aisara Amanova
- Institut de Chimie Physique, CNRS-UMR 8000, Université Paris-Saclay, 91405 Orsay, France
| | - Ludivine Houel-Renault
- Institut de Sciences Moléculaires d'Orsay, CNRS-UMR 8214, Université Paris-Saclay, 91400 Orsay, France
| | - Isabelle Lampre
- Institut de Chimie Physique, CNRS-UMR 8000, Université Paris-Saclay, 91405 Orsay, France
| | - Hynd Remita
- Institut de Chimie Physique, CNRS-UMR 8000, Université Paris-Saclay, 91405 Orsay, France
| | - Ruxandra Gref
- Institut de Sciences Moléculaires d'Orsay, CNRS-UMR 8214, Université Paris-Saclay, 91400 Orsay, France
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Oheix E, Reicher C, Nouali H, Michelin L, Josien L, Daou TJ, Pieuchot L. Rational Design and Characterisation of Novel Mono- and Bimetallic Antibacterial Linde Type A Zeolite Materials. J Funct Biomater 2022; 13:jfb13020073. [PMID: 35735928 PMCID: PMC9224897 DOI: 10.3390/jfb13020073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/21/2022] Open
Abstract
The development of antimicrobial devices and surfaces requires the setup of suitable materials, able to store and release active principles. In this context, zeolites, which are microporous aluminosilicate minerals, hold great promise, since they are able to serve as a reservoir for metal-ions with antimicrobial properties. Here, we report on the preparation of Linde Type A zeolites, partially exchanged with combinations of metal-ions (Ag+, Cu2+, Zn2+) at different loadings (0.1–11.9 wt.%). We combine X-ray fluorescence, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction to monitor the metal-ion contents, distribution, and conservation of the zeolite structure after exchange. Then, we evaluate their antimicrobial activity, using agar dilution and optical-density monitoring of Escherichia coli cultures. The results indicate that silver-loaded materials are at least 70-fold more active than the copper-, zinc-, and non-exchanged ones. Moreover, zeolites loaded with lower Ag+ concentrations remain active down to 0.1 wt.%, and their activities are directly proportional to the total Ag content. Sequential exchanges with two metal ions (Ag+ and either Cu2+, Zn2+) display synergetic or antagonist effects, depending on the quantity of the second metal. Altogether, this work shows that, by combining analytical and quantitative methods, it is possible to fine-tune the composition of bi-metal-exchanged zeolites, in order to maximise their antimicrobial potential, opening new ways for the development of next-generation composite zeolite-containing antimicrobial materials, with potential applications for the design of dental or bone implants, as well as biomedical devices and pharmaceutical products.
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Affiliation(s)
- Emmanuel Oheix
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute Alsace (UHA), CNRS, UMR 7361, 3 bis rue Alfred Werner, F-68093 Mulhouse, France; (E.O.); (C.R.); (H.N.); (L.M.); (L.J.)
- Université de Strasbourg (UniStra), F-67000 Strasbourg, France
| | - Chloé Reicher
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute Alsace (UHA), CNRS, UMR 7361, 3 bis rue Alfred Werner, F-68093 Mulhouse, France; (E.O.); (C.R.); (H.N.); (L.M.); (L.J.)
- Université de Strasbourg (UniStra), F-67000 Strasbourg, France
| | - Habiba Nouali
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute Alsace (UHA), CNRS, UMR 7361, 3 bis rue Alfred Werner, F-68093 Mulhouse, France; (E.O.); (C.R.); (H.N.); (L.M.); (L.J.)
- Université de Strasbourg (UniStra), F-67000 Strasbourg, France
| | - Laure Michelin
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute Alsace (UHA), CNRS, UMR 7361, 3 bis rue Alfred Werner, F-68093 Mulhouse, France; (E.O.); (C.R.); (H.N.); (L.M.); (L.J.)
- Université de Strasbourg (UniStra), F-67000 Strasbourg, France
| | - Ludovic Josien
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute Alsace (UHA), CNRS, UMR 7361, 3 bis rue Alfred Werner, F-68093 Mulhouse, France; (E.O.); (C.R.); (H.N.); (L.M.); (L.J.)
- Université de Strasbourg (UniStra), F-67000 Strasbourg, France
| | - T. Jean Daou
- Aptar CSP Technology, 9 rue du Sandholz, F-67110 Niederbronn les Bains, France
- Correspondence: (T.J.D.); (L.P.); Tel.: +33-389336739 (T.J.D.); +33-389608713 (L.P.)
| | - Laurent Pieuchot
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute Alsace (UHA), CNRS, UMR 7361, 3 bis rue Alfred Werner, F-68093 Mulhouse, France; (E.O.); (C.R.); (H.N.); (L.M.); (L.J.)
- Université de Strasbourg (UniStra), F-67000 Strasbourg, France
- Correspondence: (T.J.D.); (L.P.); Tel.: +33-389336739 (T.J.D.); +33-389608713 (L.P.)
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5
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Sazali N, Harun Z. One Shot of the Hydrothermal Route for the Synthesis of Zeolite LTA Using Kaolin. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02369-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Liu LT, Chin AWH, Yu P, Poon LLM, Huang MX. Anti-pathogen stainless steel combating COVID-19. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2022; 433:133783. [PMID: 34853550 PMCID: PMC8613009 DOI: 10.1016/j.cej.2021.133783] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/05/2021] [Accepted: 11/19/2021] [Indexed: 05/05/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) exhibits strong stability on conventional stainless steel (SS) surface, with infectious virus detected even after two days, posing a high risk of virus transmission via surface touching in public areas. In order to mitigate the surface toughing transmission, the present study develops the first SS with excellent anti-pathogen properties against SARS-COV-2. The stabilities of SARS-CoV-2, H1N1 influenza A virus (H1N1), and Escherichia coli (E.coli) on the surfaces of Cu-contained SS, pure Cu, Ag-contained SS, and pure Ag were investigated. It is discovered that pure Ag and Ag-contained SS surfaces do not display apparent inhibitory effects on SARS-CoV-2 and H1N1. In comparison, both pure Cu and Cu-contained SS with a high Cu content exhibit significant antiviral properties. Significantly, the developed anti-pathogen SS with 20 wt% Cu can distinctly reduce 99.75% and 99.99% of viable SARS-CoV-2 on its surface within 3 and 6 h, respectively. In addition, the present anti-pathogen SS also exhibits an excellent inactivation ability for H1N1 influenza A virus (H1N1), and Escherichia coli (E.coli). Interestingly, the Cu ion concentration released from the anti-pathogen SS with 10 wt% and 20 wt% Cu was notably higher than the Ag ion concentration released from Ag and the Ag-contained SS. Lift buttons made of the present anti-pathogen SS are produced using mature powder metallurgy technique, demonstrating its potential applications in public areas and fighting the transmission of SARS-CoV-2 and other pathogens via surface touching.
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Affiliation(s)
- L T Liu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Avenue, Shenzhen 518000, PR China
| | - A W H Chin
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Hong Kong, PR China
- Centre for Immunity and Infection, Hong Kong Science Park, Hong Kong, PR China
| | - P Yu
- Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Avenue, Shenzhen 518000, PR China
| | - L L M Poon
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Hong Kong, PR China
- Centre for Immunity and Infection, Hong Kong Science Park, Hong Kong, PR China
- HKU-Pasteur Research Pole, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, PR China
| | - M X Huang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
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Thanigaivel S, Vickram A, Anbarasu K, Gulothungan G, Nanmaran R, Vignesh D, Rohini K, Ravichandran V. Ecotoxicological assessment and dermal layer interactions of nanoparticle and its routes of penetrations. Saudi J Biol Sci 2021; 28:5168-5174. [PMID: 34466094 PMCID: PMC8380995 DOI: 10.1016/j.sjbs.2021.05.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/16/2021] [Accepted: 05/18/2021] [Indexed: 11/26/2022] Open
Abstract
Our review focused on nanomaterials-based toxicity evaluation and its exposure to the human and aquatic animals when it was leached and contaminated in the environment. Ecotoxicological assessment and its mechanism mainly affect the skin covering layers and its preventive barriers that protect the foreign particles' skin. Nanoscale materials are essential in the medical field, especially in biomedical and commercial applications such as nanomedicine and drug delivery, mainly in therapeutic treatments. However, various commercial formulations of pharmaceutical drugs are manufactured through a series of clinical trials. The role of such drugs and their metabolites has not met the requirement of an individual's need at the early stage of the treatments except few drugs and medicines with minimal or no side effects. Therefore, biology and medicines are taken up the advantages of nano scaled drugs and formulations for the treatment of various diseases. The present study identifies and analyses the different nanoparticles and their chemical components on the skin and their effects due to penetration. There are advantageous factors available to facilitate positive and negative contact between dermal layers. It creates a new agenda for an established application that is mainly based on skin diseases.
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Affiliation(s)
- S. Thanigaivel
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, Tamil Nadu, India
| | - A.S. Vickram
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, Tamil Nadu, India
| | - K. Anbarasu
- Department of Bioinformatics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, Tamil Nadu, India
| | - G. Gulothungan
- Department of Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, Tamil Nadu, India
| | - R. Nanmaran
- Department of Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, Tamil Nadu, India
| | - D. Vignesh
- Department of Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, Tamil Nadu, India
| | | | - V. Ravichandran
- Unit of Pharmaceutical Chemistry, Faculty of Pharmacy, AIMST University, Malaysia
- Corresponding author at: Head of Unit, Unit of Pharmaceutical Chemistry, Faculty of Pharmacy, AIMST University, Malaysia.
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Liu S, Ulugun B, DeFlorio W, Arcot Y, Yegin Y, Salazar KS, Castillo A, Taylor TM, Cisneros-Zevallos L, Akbulut M. Development of durable and superhydrophobic nanodiamond coating on aluminum surfaces for improved hygiene of food contact surfaces. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110487] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Biegański P, Szczupak Ł, Arruebo M, Kowalski K. Brief survey on organometalated antibacterial drugs and metal-based materials with antibacterial activity. RSC Chem Biol 2021; 2:368-386. [PMID: 34458790 PMCID: PMC8341851 DOI: 10.1039/d0cb00218f] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022] Open
Abstract
Rising bacterial antibiotic resistance is a global threat. To deal with it, new antibacterial agents and antiseptic materials need to be developed. One alternative in this quest is the organometallic derivatization of well-established antibacterial drugs and also the fabrication of advanced metal-based materials having antibacterial properties. Metal-based agents and materials often show new modes of antimicrobial action which enable them to overcome drug resistance in pathogenic bacterial strains. This review summarizes recent (2017-2020) progress in the field of organometallic-derived antibacterial drugs and metal-based materials having antibacterial activity. Specifically, it covers organometallic derivatives of antibacterial drugs including β-lactams, ciprofloxacin, isoniazid, trimethoprim, sulfadoxine, sulfamethoxazole, and ethambutol as well as non-antibacterial drugs like metformin, phenformin and aspirin. Recent advances and reported clinical trials in the use of metal-based nanomaterials as antibiofouling coatings on medical devices, as photocatalytic agents in indoor air pollutant control, and also as photodynamic/photothermal antimicrobial agents are also summarized.
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Affiliation(s)
- Przemysław Biegański
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź Tamka 12 91-403 Łódź Poland +48-42-635-5759
| | - Łukasz Szczupak
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź Tamka 12 91-403 Łódź Poland +48-42-635-5759
| | - Manuel Arruebo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza Zaragoza 50009 Spain
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I + D, C/Poeta Mariano Esquillor S/N 50018 Zaragoza Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN 28029 Madrid Spain
| | - Konrad Kowalski
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź Tamka 12 91-403 Łódź Poland +48-42-635-5759
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Probing axial metal distribution on biopolymer-based layer-by-layer films for antimicrobial use. Colloids Surf B Biointerfaces 2020; 199:111505. [PMID: 33373842 DOI: 10.1016/j.colsurfb.2020.111505] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/09/2020] [Accepted: 11/30/2020] [Indexed: 01/01/2023]
Abstract
This study presents the axial molar composition of polysaccharide-based polyelectrolyte multilayer (PEM) films loaded with silver ions for antimicrobial applications. Individual polymers (chitosan, hyaluronan or alginate) and silver composition were determined using X-Ray Photoelectron Spectroscopy coupled with C60+ cluster ion sputtering technique, while the influence of silver loading on film topography was assessed using Atomic Force Microscopy. Despite the use of the layer-by-layer approach for film assembly, these PEM films present a non-stratified, nanoblend-like, polymer composition, with a nearly uniform metal distribution over the axial direction. Results also show surface antimicrobial activity towards Staphylococcus aureus bacteria and Candida albicans fungi over 20 h for hyaluronan/chitosan PEM, which is associated with its higher silver loading capacity. The interplay of bulk film composition and surface properties may provide valuable insights for engineering advanced materials with controlled spatio-temporal behavior.
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Serati-Nouri H, Jafari A, Roshangar L, Dadashpour M, Pilehvar-Soltanahmadi Y, Zarghami N. Biomedical applications of zeolite-based materials: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111225. [DOI: 10.1016/j.msec.2020.111225] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 06/15/2020] [Accepted: 06/19/2020] [Indexed: 12/22/2022]
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Paton S, Moore G, Campagnolo L, Pottage T. Antimicrobial surfaces for use on inhabited space craft: A review. LIFE SCIENCES IN SPACE RESEARCH 2020; 26:125-131. [PMID: 32718678 DOI: 10.1016/j.lssr.2020.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/28/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
Biodegradation of materials on crewed spacecraft can cause disruption, loss of function and lost crew time. Cleaning of surfaces is only partially effective due in accessibility and resource concerns. Commonly affected surfaces are hand-touch sites, waste disposal systems and liquid-handling systems, including condensing heat exchangers. The use of materials on and within such affected systems that reduce the attachment of and degradation by microbes, is an innovative solution to this problem. This review aims to examine both terrestrial and space-based experiments that have aimed to reduce microbial growth which are applicable to the unique conditions of crewed spacecraft. Traditional antimicrobial surfaces such as copper and silver, as well as nanoparticles, long-chain organic molecules and surface topographical features, as well as novel "smart" technologies are discussed. Future missions to cis-lunar and Martian destinations will depend on materials that retain their function and reliability for their success; thus, the use of antimicrobial and antifouling materials is a pivotal one.
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Affiliation(s)
- Susan Paton
- Public Health England, Porton Down, Salisbury SP4 0JG, UK.
| | - Ginny Moore
- Public Health England, Porton Down, Salisbury SP4 0JG, UK.
| | - Lucie Campagnolo
- Medes - IMPS, Institut de Médecine et de Physiologie Spatiales, BP 74404, TOULOUSE CEDEX 4 31405, France.
| | - Thomas Pottage
- Public Health England, Porton Down, Salisbury SP4 0JG, UK.
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Fontecha-Umaña F, Ríos-Castillo AG, Ripolles-Avila C, Rodríguez-Jerez JJ. Antimicrobial Activity and Prevention of Bacterial Biofilm Formation of Silver and Zinc Oxide Nanoparticle-Containing Polyester Surfaces at Various Concentrations for Use. Foods 2020; 9:E442. [PMID: 32268566 PMCID: PMC7230149 DOI: 10.3390/foods9040442] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022] Open
Abstract
Food contact surfaces are primary sources of bacterial contamination in food industry processes. With the objective of preventing bacterial adhesion and biofilm formation on surfaces, this study evaluated the antimicrobial activity of silver (Ag-NPs) and zinc oxide (ZnO-NPs) nanoparticle-containing polyester surfaces (concentration range from 400 ppm to 850 ppm) using two kinds of bacteria, Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli), and the prevention of bacterial biofilm formation using the pathogen Listeria monocytogenes. The results of antimicrobial efficacy (reductions ≥ 2 log CFU/cm2) showed that at a concentration of 850 ppm, ZnO-NPs were effective against only E. coli (2.07 log CFU/cm2). However, a concentration of 400 ppm of Ag-NPs was effective against E. coli (4.90 log CFU/cm2) and S. aureus (3.84 log CFU/cm2). Furthermore, a combined concentration of 850 ppm Ag-NPs and 400 ppm ZnO-NPs showed high antimicrobial efficacy against E. coli (5.80 log CFU/cm2) and S. aureus (4.11 log CFU/cm2). The results also showed a high correlation between concentration levels and the bacterial activity of Ag-ZnO-NPs (R2 = 0.97 for S. aureus, and R2 = 0.99 for E. coli). They also showed that unlike individual action, the joint action of Ag-NPs and ZnO-NPs has high antimicrobial efficacy for both types of microorganisms. Moreover, Ag-NPs prevent the biofilm formation of L. monocytogenes in humid conditions of growth at concentrations of 500 ppm. Additional studies under different conditions are needed to test the durability of nanoparticle containing polyester surfaces with antimicrobial properties to optimize their use.
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Affiliation(s)
| | | | | | - José Juan Rodríguez-Jerez
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, Travessera dels Turons s/n. Bellaterra, 08193 Barcelona, Spain; (F.F.-U.); (A.G.R.-C.); (C.R.-A.)
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Weber DJ, Rutala WA, Sickbert-Bennett EE, Kanamori H, Anderson D. Continuous room decontamination technologies. Am J Infect Control 2019; 47S:A72-A78. [PMID: 31146855 DOI: 10.1016/j.ajic.2019.03.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The contaminated surface environment in the rooms of hospitalized patients is an important risk factor for the colonization and infection of patients with multidrug-resistant pathogens. Improved terminal cleaning and disinfection have been demonstrated to reduce the incidence of health care-associated infections. In the United States, hospitals generally perform daily cleaning and disinfection of patient rooms. However, cleaning and disinfection are limited by the presence of the patient in room (eg, current ultraviolet devices and hydrogen peroxide systems cannot be used) and the fact that after disinfection pathogenic bacteria rapidly recolonize surfaces and medical devices/equipment. For this reason, there has been great interest in developing methods of continuous room disinfection and/or "self-disinfecting" surfaces. This study will review the research on self-disinfecting surfaces (eg, copper-coated surfaces and persistent chemical disinfectants) and potential new room disinfection methods (eg, "blue light" and diluted hydrogen peroxide systems).
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16
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A two-phase gradual silver release mechanism from a nanostructured TiAlV surface as a possible antibacterial modification in implants. Bioelectrochemistry 2019; 127:26-34. [PMID: 30654242 DOI: 10.1016/j.bioelechem.2019.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 01/27/2023]
Abstract
Titanium biomaterials are widely used in the medical field due to their biocompatibility and excellent corrosion and mechanical resistance. However, these materials have no antibacterial properties. To obtain an antibacterial active surface, a nanostructure of Ti6Al4V alloy was created. This specific nanostructure contained nanotubes and micro-cavities and was used as a substrate for silver anchoring. The electrochemical approach to silver reduction was studied. It is a common approach for silver deposition and in this work, inhomogeneities in the nanostructure were used as a preferential area for silver localisation. The galvanostatic regimen of deposition allowed for a technically quantitative process and the required silver placement. The experimental conditions used enabled testing and silver dissolution rate evaluation within a reasonable time span. Based on the corrosion and analytical results (EDS, XPS and ICP-MS), a two-phase silver release mechanism was confirmed. The openings of the individual nanotubes were filled with silver nanoparticles, whose release was relatively fast. By contrast, the silver anchored inside the cavities allowed the silver to release gradually. Antibacterial efficiency against Staphylococcus aureus and Escherichia coli was successfully demonstrated. Cytotoxicity testing with murine fibroblasts showed cell metabolic activity far above the normative limit of 70%.
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17
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Ponomarev VA, Sukhorukova IV, Sheveyko AN, Permyakova ES, Manakhov AM, Ignatov SG, Gloushankova NA, Zhitnyak IY, Lebedev OI, Polčak J, Kozmin AM, Shtansky DV. Antibacterial Performance of TiCaPCON Films Incorporated with Ag, Pt, and Zn: Bactericidal Ions Versus Surface Microgalvanic Interactions. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24406-24420. [PMID: 29969237 DOI: 10.1021/acsami.8b06671] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
It is very important to prevent bacterial colonization at the early postoperative stages. There are four major strategies and their corresponding types of antibacterial surfaces specifically designed to fight infection: bactericide release, anti-adhesion, pH-sensitive, and contact-killing. Herein, we aimed at determining the antibacterial efficiency of different types of bactericidal ions and revealing the possible contribution of surface microgalvanic effects arising from a potential difference on heterogeneous surfaces. We considered five types of TiCaPCON films, with Ag, Zn, Pt, Ag + Zn, and Pt + Zn nanoparticles (NPs) on their surface. The Ag-modified film demonstrated a pronounced antibacterial effect at a very low Ag ion concentration of 0.11 ppb in physiological solution that was achieved already after 3 h of immersion in Escherichia coli ( E. coli) bacterial culture. The Zn-containing sample also showed a noticeable antibacterial effect against E. coli and Staphylococcus aureus ( S. aureus) strains, wherein the concentration of Zn ions was 2 orders of magnitude higher (15 ppb) compared with the Ag ions. The presence of Ag NPs accelerated the leaching of Zn ion out of the TiCaPCON-Ag-Zn film, but no synergistic effect of the simultaneous presence of the two bactericidal components was observed. After the incubation of the samples with Ag, Zn, and Ag + Zn NPs in E. coli and S. aureus suspensions for 24 and 8 h, respectively, all bacterial cells were completely inactivated. The Pt-containing film showed a very low Pt ion release, and therefore the contribution of this type of ions to the total bactericidal effect could be neglected. The results of the electrochemical studies and Kelvin probe force microscopy indicated that microgalvanic couples were formed between the Pt NPs and the TiCaPCON film, but no noticeable antibacterial effect against either E. coli or S. aureus strains was observed. All ion-modified samples provided good osteoblastic cell attachment, spreading, and proliferation and therefore were concluded to be nontoxic for cells. In addition, the TiCaPCON films with Ag, Pt, and Zn NPs on their surface demonstrated good osteoconductive characteristics.
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Affiliation(s)
- V A Ponomarev
- National University of Science and Technology "MISIS" , Leninsky prospect 4 , Moscow 119049 , Russia
| | - I V Sukhorukova
- National University of Science and Technology "MISIS" , Leninsky prospect 4 , Moscow 119049 , Russia
| | - A N Sheveyko
- National University of Science and Technology "MISIS" , Leninsky prospect 4 , Moscow 119049 , Russia
| | - E S Permyakova
- National University of Science and Technology "MISIS" , Leninsky prospect 4 , Moscow 119049 , Russia
| | - A M Manakhov
- National University of Science and Technology "MISIS" , Leninsky prospect 4 , Moscow 119049 , Russia
| | - S G Ignatov
- State Research Center for Applied Microbiology and Biotechnology , Obolensk , Moscow Region 142279 , Russia
| | - N A Gloushankova
- N.N. Blokhin National Medical Research Center of Oncology of Ministry of Health of Russia , Kashirskoe shosse 24 , Moscow 115478 , Russia
| | - I Y Zhitnyak
- N.N. Blokhin National Medical Research Center of Oncology of Ministry of Health of Russia , Kashirskoe shosse 24 , Moscow 115478 , Russia
| | - O I Lebedev
- CRISMAT, UMR 6508, CNRS-ENSICAEN , 6Bd Marechal Juin , 14050 Caen , France
| | - J Polčak
- Brno University of Technology , Technicka 2896/2 , 616 69 Brno , Czech Republic
- CEITEC-Brno University of Technology , Technická 3058/10 , 61600 Brno , Czech Republic
| | - A M Kozmin
- National Research University of Electronic Technology "MIET" , Shokin Square 1 , Zelenograd , Moscow Region 124498 , Russia
| | - D V Shtansky
- National University of Science and Technology "MISIS" , Leninsky prospect 4 , Moscow 119049 , Russia
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Feng Y, Zhu S, Wang L, Chang L, Hou Y, Guan S. Fabrication and characterization of biodegradable Mg-Zn-Y-Nd-Ag alloy: Microstructure, mechanical properties, corrosion behavior and antibacterial activities. Bioact Mater 2018; 3:225-235. [PMID: 29744461 PMCID: PMC5935780 DOI: 10.1016/j.bioactmat.2018.02.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/29/2018] [Accepted: 02/01/2018] [Indexed: 10/28/2022] Open
Abstract
Magnesium (Mg), a potential biodegradable material, has drawn wide attention in the bone reconstruction field. However, Mg alloys, served as the bone graft substitution, remain a clinical challenge, the antibacterial activity of which is required to be enhanced. Here, we prepared biodegradable magnesium Mg-Zn-Y-Nd-Ag and then had it been further densified by extruding. The microstructure evolution of the as-cast and as-extruded Mg- Zn-Y-Nd-Ag was characterized using optical microscope and X-ray diffraction analyses (XRD). The results showed that the microstructure of the as-cast alloys was mainly dendrites, between which, the second phase was mainly distributed; with the increase of Ag additions, grain structure was further refined as well as the increase of amount of the second phase. After the extrusion, the grains were further refined. Microhardness tests indicated that both of the increase of Ag content and the extrusion process improved the microhardness of the alloys, specially the later. A systematic investigation of the in vivo antibacterial capability of Staphylococcus aurous and Escherichia coli was performed, and the results of which indicated that all Mg-Zn-Y-N-xAg (x = 0.2, 0.4, 0.6, 0.8) alloys exhibited certain antibacterial property, which would increased with the increase of Ag content. Taken all together, the antimicrobial property of the as-extruded alloy containing 0.4 wt% Ag exhibited the relatively better antimicrobial properties and mechanical property with the relatively small loss in corrosion resistance, which suggested the potential utility of as-extruded Mg-Zn-Y-N-0.4Ag in treating orthopedic infections.
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Affiliation(s)
- Yashan Feng
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
| | - Shijie Zhu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
| | - Liguo Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
| | - Lei Chang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
| | - Yachen Hou
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
| | - Shaokang Guan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
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19
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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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20
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Chen M, Yang L, Zhang L, Han Y, Lu Z, Qin G, Zhang E. Effect of nano/micro-Ag compound particles on the bio-corrosion, antibacterial properties and cell biocompatibility of Ti-Ag alloys. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:906-917. [DOI: 10.1016/j.msec.2017.02.142] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/14/2016] [Accepted: 02/24/2017] [Indexed: 11/28/2022]
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21
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Torres-Giner S, Torres A, Ferrándiz M, Fombuena V, Balart R. Antimicrobial activity of metal cation-exchanged zeolites and their evaluation on injection-molded pieces of bio-based high-density polyethylene. J Food Saf 2017. [DOI: 10.1111/jfs.12348] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sergio Torres-Giner
- Technological Institute of Materials (ITM); Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1; Alcoy 03801 Spain
| | - Ana Torres
- Textile Industry Research Association (AITEX), Plaza Emilio Sala 1; Alcoy 03801 Spain
| | - Marcela Ferrándiz
- Textile Industry Research Association (AITEX), Plaza Emilio Sala 1; Alcoy 03801 Spain
| | - Vicent Fombuena
- Technological Institute of Materials (ITM); Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1; Alcoy 03801 Spain
| | - Rafael Balart
- Technological Institute of Materials (ITM); Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1; Alcoy 03801 Spain
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22
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Chen M, Zhang E, Zhang L. Microstructure, mechanical properties, bio-corrosion properties and antibacterial properties of Ti–Ag sintered alloys. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:350-60. [DOI: 10.1016/j.msec.2016.01.081] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 01/11/2016] [Accepted: 01/27/2016] [Indexed: 10/22/2022]
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23
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Yeasmin R, Zhang H, Zhu J, Kazemian H. Pre-treatment and conditioning of chabazites followed by functionalization for making suitable additives used in antimicrobial ultra-fine powder coated surfaces. RSC Adv 2016. [DOI: 10.1039/c6ra14295h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Durability of functionalized chabazite containing ultrafine powder coated surface.
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Affiliation(s)
- Rezwana Yeasmin
- Department of Chemical and Biochemical Engineering
- University of Western Ontario
- Canada
| | - Hui Zhang
- Department of Chemical and Biochemical Engineering
- University of Western Ontario
- Canada
| | - Jingxu Zhu
- Department of Chemical and Biochemical Engineering
- University of Western Ontario
- Canada
| | - Hossein Kazemian
- Department of Chemical and Biochemical Engineering
- University of Western Ontario
- Canada
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24
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Jia R, Jiang H, Jin M, Wang X, Huang J. Silver/chitosan-based Janus particles: Synthesis, characterization, and assessment of antimicrobial activity in vivo and vitro. Food Res Int 2015; 78:433-441. [DOI: 10.1016/j.foodres.2015.08.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/20/2015] [Accepted: 08/22/2015] [Indexed: 11/27/2022]
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25
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Antimicrobial Activity and Mechanism of Polyvinyl Chloride Composite Containing Inorganic Bacteriocide. ELASTOMERS AND COMPOSITES 2015. [DOI: 10.7473/ec.2015.50.3.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Bastarrachea LJ, Denis-Rohr A, Goddard JM. Antimicrobial Food Equipment Coatings: Applications and Challenges. Annu Rev Food Sci Technol 2015; 6:97-118. [DOI: 10.1146/annurev-food-022814-015453] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Luis J. Bastarrachea
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003;
| | - Anna Denis-Rohr
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003;
| | - Julie M. Goddard
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003;
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27
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Synthesis of silver abietate as an antibacterial agent for textile applications. Bioinorg Chem Appl 2015; 2015:215354. [PMID: 25810694 PMCID: PMC4355809 DOI: 10.1155/2015/215354] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/13/2015] [Accepted: 02/17/2015] [Indexed: 11/18/2022] Open
Abstract
This study explored the potential use of new silver abietate obtained from abietic acid as an antibacterial agent for textile applications. Synthesis, structure, and antibacterial studies of silver abietate compound are reported. Silver complex was obtained reacting abietic acid with silver. The new compounds were characterized by 1H NMR, 13C NMR, DEPT, IR, UV, and ESI-MS techniques which support the proposed structures. The new Ag abietate complex has no environmental hazard, its antibacterial activities were evaluated after being applied to cotton fabric by padding process according to the JIS L 1902-2008 agar diffusion test method and against three Gram-negative and three Gram-positive bacteria, respectively. Stability of antibacterial effect after repeated washings (3, 5, 10, and 20) was also tested which indicated that the synthesized silver abietate compound could be used as a new antibacterial agent in textile industry. In this way, the compound has been synthesized the first time in the literature and the applications have been investigated.
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28
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Novel synthesis method of micronized ti-zeolite na-a and cytotoxic activity of its silver exchanged form. Bioinorg Chem Appl 2015; 2015:428121. [PMID: 25705142 PMCID: PMC4332468 DOI: 10.1155/2015/428121] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 12/27/2014] [Accepted: 12/30/2014] [Indexed: 11/17/2022] Open
Abstract
The core-shell method is used as a novel synthetic process of micronized Ti-Zeolite Na-A which involves calcination at 700°C of coated Egyptian Kaolin with titanium tetrachloride in acidic medium as the first step. The produced Ti-coated metakaolinite is subjected to microwave irradiation at low temperature of 80°C for 2 h. The prepared micronized Ti-containing Zeolites-A (Ti-Z-A) is characterized by FTIR, XRF, XRD, SEM, and EDS elemental analysis. Ag-exchanged form of Ti-Z-Ag is also prepared and characterized. The Wt% of silver exchanged onto the Ti-Zeolite structure was determined by atomic absorption spectra. The in vitro cytotoxic activity of Ti-Z-Ag against human hepatocellular carcinoma cell line (HePG2), colon cell line carcinoma (HCT116), lung carcinoma cell line (A549), and human Caucasian breast adenocarcinoma (MCF7) is reported. The results were promising and revealed that the exchanged Ag form of micronized Ti-Zeolite-A can be used as novel antitumor drug.
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29
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Griffith A, Neethirajan S, Warriner K. Development and Evaluation of Silver Zeolite Antifouling Coatings on Stainless Steel for Food Contact Surfaces. J Food Saf 2015. [DOI: 10.1111/jfs.12181] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Alexander Griffith
- BioNano Laboratory; School of Engineering; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
| | - Suresh Neethirajan
- BioNano Laboratory; School of Engineering; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
| | - Keith Warriner
- Department of Food Science; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
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30
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Liu H, Elkin I, Chen J, Klibanov AM. Why do Some Immobilized N-Alkylated Polyethylenimines Far Surpass Others in Inactivating Influenza Viruses? Biomacromolecules 2014; 16:351-6. [DOI: 10.1021/bm5015427] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Harris Liu
- Departments of †Chemistry, ‡Biology, and ∥Biological Engineering and §Koch Institute
for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Igor Elkin
- Departments of †Chemistry, ‡Biology, and ∥Biological Engineering and §Koch Institute
for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jianzhu Chen
- Departments of †Chemistry, ‡Biology, and ∥Biological Engineering and §Koch Institute
for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Alexander M. Klibanov
- Departments of †Chemistry, ‡Biology, and ∥Biological Engineering and §Koch Institute
for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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31
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Potter B, Lob M, Mercaldo R, Hetzler A, Kaistha V, Khan H, Kingston N, Knoll M, Maloy‐Franklin B, Melvin K, Ruiz‐Pelet P, Ozsoy N, Schmitt E, Wheeler L, Potter M, Rutter M, Yahn G, Parente D. A long‐term study examining the antibacterial effectiveness of Agion silver zeolite technology on door handles within a college campus. Lett Appl Microbiol 2014; 60:120-127. [DOI: 10.1111/lam.12356] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 10/02/2014] [Accepted: 10/24/2014] [Indexed: 01/07/2023]
Affiliation(s)
- B.A. Potter
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - M. Lob
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - R. Mercaldo
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - A. Hetzler
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - V. Kaistha
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - H. Khan
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - N. Kingston
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - M. Knoll
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - B. Maloy‐Franklin
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - K. Melvin
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - P. Ruiz‐Pelet
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - N. Ozsoy
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - E. Schmitt
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | - L. Wheeler
- Department of Biology Penn State Erie The Behrend College Erie PA USA
| | | | - M.A. Rutter
- Department of Mathematics Penn State Erie The Behrend College Erie PA USA
| | - G. Yahn
- Advanced Finishing USA Fairview PA USA
| | - D.H. Parente
- Sam and Irene Black School of Business Penn State Erie The Behrend College Erie PA USA
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32
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Antibacterial properties of metal and metalloid ions in chronic periodontitis and peri-implantitis therapy. Acta Biomater 2014; 10:3795-810. [PMID: 24704700 DOI: 10.1016/j.actbio.2014.03.028] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 03/07/2014] [Accepted: 03/26/2014] [Indexed: 12/21/2022]
Abstract
Periodontal diseases like periodontitis and peri-implantitis have been linked with Gram-negative anaerobes. The incorporation of various chemotherapeutic agents, including metal ions, into several materials and devices has been extensively studied against periodontal bacteria, and materials doped with metal ions have been proposed for the treatment of periodontal and peri-implant diseases. The aim of this review is to discuss the effectiveness of materials doped with metal and metalloid ions already used in the treatment of periodontal diseases, as well as the potential use of alternative materials that are currently available for other applications but have been proved to be cytotoxic to the specific periodontal pathogens. The sources of this review included English articles using Google Scholar™, ScienceDirect, Scopus and PubMed. Search terms included the combinations of the descriptors "disease", "ionic species" and "bacterium". Articles that discuss the biocidal properties of materials doped with metal and metalloid ions against the specific periodontal bacteria were included. The articles were independently extracted by two authors using predefined data fields. The evaluation of resources was based on the quality of the content and the relevance to the topic, which was evaluated by the ionic species and the bacteria used in the study, while the final application was not considered as relevant. The present review summarizes the extensive previous and current research efforts concerning the use of metal ions in periodontal diseases therapy, while it points out the challenges and opportunities lying ahead.
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33
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Trivedi PA, Parmar PR, Parikh PA. Spent FCC catalyst: Potential anti-corrosive and anti-biofouling material. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.07.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Trivedi PA, Solanki NM, Butani N, Parikh PA. Investigation on corrosion control of mild steel buried in soil by spent FCC catalyst coating. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Martínez-Abad A, Ocio MJ, Lagaron JM. Morphology, physical properties, silver release, and antimicrobial capacity of ionic silver-loaded poly(l-lactide) films of interest in food-coating applications. J Appl Polym Sci 2014. [DOI: 10.1002/app.41001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Antonio Martínez-Abad
- Department of Food Quality and Preservation; Novel Materials and Nanotechnology Group, IATA, CSIC; 46980 Paterna Spain
| | - María José Ocio
- Department of Food Quality and Preservation; Novel Materials and Nanotechnology Group, IATA, CSIC; 46980 Paterna Spain
- Department of Prev Med; Faculty of Pharmacy, University of Valencia; 46100 Burjassot Spain
| | - José María Lagaron
- Department of Food Quality and Preservation; Novel Materials and Nanotechnology Group, IATA, CSIC; 46980 Paterna Spain
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Martínez-Abad A, Sánchez G, Lagaron JM, Ocio MJ. Ligands affecting silver antimicrobial efficacy on Listeria monocytogenes and Salmonella enterica. Food Chem 2013; 139:281-8. [DOI: 10.1016/j.foodchem.2013.01.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 10/17/2012] [Accepted: 01/08/2013] [Indexed: 11/29/2022]
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Schneider PM. New technologies and trends in sterilization and disinfection. Am J Infect Control 2013; 41:S81-6. [PMID: 23622756 DOI: 10.1016/j.ajic.2012.12.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 11/14/2012] [Accepted: 12/04/2012] [Indexed: 11/18/2022]
Abstract
Continued improvements in low-temperature sterilization systems have resulted in reduced processing times and expanded capabilities for instrument reprocessing. As the relationship of environmental surface contamination and health care-associated infections has become more defined, area disinfection systems and antimicrobial surface technologies have emerged as new strategies for disinfection of surfaces.
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Muñoz-Bonilla A, Cerrada ML, Fernández-García M, Kubacka A, Ferrer M, Fernández-García M. Biodegradable polycaprolactone-titania nanocomposites: preparation, characterization and antimicrobial properties. Int J Mol Sci 2013; 14:9249-66. [PMID: 23629663 PMCID: PMC3676781 DOI: 10.3390/ijms14059249] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 04/11/2013] [Accepted: 04/16/2013] [Indexed: 11/16/2022] Open
Abstract
Nanocomposites obtained from the incorporation of synthesized TiO2 nanoparticles (≈10 nm average primary particle size) in different amounts, ranging from 0.5 to 5 wt.%, into a biodegradable polycaprolactone matrix are achieved via a straightforward and commercial melting processing. The resulting nanocomposites have been structurally and thermally characterized by transmission electron microscopy (TEM), wide/small angle X-ray diffraction (WAXS/SAXS, respectively) and differential scanning calorimetry (DSC). TEM evaluation provides evidence of an excellent nanometric dispersion of the oxide component in the polymeric matrix, with aggregates having an average size well below 100 nm. Presence of these TiO2 nanoparticles induces a nucleant effect during polymer crystallization. Moreover, the antimicrobial activity of nanocomposites has been tested using both UV and visible light against Gram-negative Escherichia coli bacteria and Gram-positive Staphylococcus aureus. The bactericidal behavior has been explained through the analysis of the material optical properties, with a key role played by the creation of new electronic states within the polymer-based nanocomposites.
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Affiliation(s)
- Alexandra Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; E-Mails: (M.L.C.); (M.F.-G.)
- Authors to whom correspondence should be addressed; E-Mails: (A.M.-B.); (A.K.); Tel.: +34-91-5622900 (ext. 331) (A.M.-B.); +34-91585939 (A.K.); Fax: +34-91-5644853 (A.M.-B.); +34-91-5854760 (A.K.)
| | - María L. Cerrada
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; E-Mails: (M.L.C.); (M.F.-G.)
| | - Marta Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; E-Mails: (M.L.C.); (M.F.-G.)
| | - Anna Kubacka
- Instituto de Catálisis y Petroleoquímica, (ICP-CSIC), C/Marie Curie 2, 28049 Madrid, Spain; E-Mails: (M.F.); (M.F.-G.)
- Authors to whom correspondence should be addressed; E-Mails: (A.M.-B.); (A.K.); Tel.: +34-91-5622900 (ext. 331) (A.M.-B.); +34-91585939 (A.K.); Fax: +34-91-5644853 (A.M.-B.); +34-91-5854760 (A.K.)
| | - Manuel Ferrer
- Instituto de Catálisis y Petroleoquímica, (ICP-CSIC), C/Marie Curie 2, 28049 Madrid, Spain; E-Mails: (M.F.); (M.F.-G.)
| | - Marcos Fernández-García
- Instituto de Catálisis y Petroleoquímica, (ICP-CSIC), C/Marie Curie 2, 28049 Madrid, Spain; E-Mails: (M.F.); (M.F.-G.)
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Kaiser JP, Zuin S, Wick P. Is nanotechnology revolutionizing the paint and lacquer industry? A critical opinion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 442:282-289. [PMID: 23178832 DOI: 10.1016/j.scitotenv.2012.10.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 10/01/2012] [Accepted: 10/01/2012] [Indexed: 05/28/2023]
Abstract
Many paints for indoor and outdoor applications contain biocides and additives for protection against microbial, physical and chemical deterioration. The biocides should remain active as long as they are incorporated in the paint. Protection against microbial colonization should last at least a decade. Once the biocides are released they should degrade within a short time so that no accumulation in the environment can occur. The paint industry is not only focusing their research in producing better paint formulations with degradable biocides: they also consider using nanomaterials, such as nanosilver, nanocopper, nanozinc oxide, photocatalytic-active nanotitanium dioxide and nanosilica dioxide as additives for the protection of paints, against microbial degradation and physical and chemical deterioration. In the future nanomaterials should replace biodegradable biocides and improve the paint properties as well as impede colonization by microorganisms. At the time there is no guarantee that the nanomaterials in paints and façades will fulfill their task in the long run, since there are no long term studies available. From nanosilver doped paints it is known that silver is easily washed out by rain. Photocatalytic active nanotitanium dioxide adsorbs ultra violet light (UV-light) and generates hydroxyl radicals, which not only inhibit microbial growth but can also initiate or accelerate the photocatalytic degradation of the paint matrix. Thus at this time it is still unknown if it makes sense to incorporate nanomaterials into paints. Intensive research and development are still needed in order to find the answers.
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Affiliation(s)
- Jean-Pierre Kaiser
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Materials-Biology Interactions Laboratory, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland.
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Lihareva N, Tzvetanova Y, Petrov O, Dimova L. Sorption of Silver Cations by Natural and Na-Exchanged Mordenite. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.691931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Christoforidis KC, Kubacka A, Ferrer M, Cerrada ML, Fernández-García M, Fernández-García M. Role of TiO2 morphological characteristics in EVOH–TiO2 nanocomposite films: self-degradation and self-cleaning properties. RSC Adv 2013. [DOI: 10.1039/c3ra23271a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Liu J, Wang Z, Luo Z, Bashir S. Effective bactericidal performance of silver-decorated titania nano-composites. Dalton Trans 2013. [DOI: 10.1039/c2dt31648j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gokdogan S, Ozogul Y, Kuley E, Ozogul F, Kacar C, Ucar Y. The influences of natural zeolite (cliptinolite) on ammonia and biogenic amine formation by foodborne pathogen. J Food Sci 2012; 77:M452-7. [PMID: 22860594 DOI: 10.1111/j.1750-3841.2012.02822.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
UNLABELLED The influence of natural zeolite on biogenic amines (BAs) and ammonia (AMN) production by eight common gram negative and positive foodborne pathogens (FBP) were investigated in histidine decarboxylase broth (HDB). Presence of 1% zeolite in the HDB resulted in significantly higher AMN production. Histamine (HIS) production by gram positive bacteria was as low as 0.5 mg/L, whereas Escherichia coli produced 18.96 mg/L of HIS. The use of zeolite also significantly suppressed HIS accumulation by E. coli, Pseudomonas aeruginosa, S. paratyphi A (P < 0.05), although zeolite addition stimulated HIS production by K. pneumonia and Aeromonas hydrophila. The range of tyramine (TYR) production by gram positive bacteria was 1.19 and 4.06 mg/L for Enteroccus faecalis and Listeria monocytogenes respectively. The results of study showed that the effect of zeolite on BAs and AMN production was dependent on bacterial strains, as well as zeolite concentrations used. PRACTICAL APPLICATION Natural zeolites are the main absorptive, low-cost material used in agriculture and industry. Although the effect of zeolite on ammonia formation in some industrial systems is well known, there is limited information regarding the impact of zeolite on biogenic amine (BA) production by foodborne pathogens. The data presented in this article will help us to understand the impact of natural zeolite on BA and ammonia production by eight common foodborne pathogens.
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Affiliation(s)
- Saadet Gokdogan
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
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Nguyen VH, Kim BK, Jo YL, Shim JJ. Preparation and antibacterial activity of silver nanoparticles-decorated graphene composites. J Supercrit Fluids 2012. [DOI: 10.1016/j.supflu.2012.08.005] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Møretrø T, Høiby-Pettersen GS, Halvorsen CK, Langsrud S. Antibacterial activity of cutting boards containing silver. Food Control 2012. [DOI: 10.1016/j.foodcont.2012.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Martínez-Abad A, Sánchez G, Lagaron J, Ocio M. On the different growth conditions affecting silver antimicrobial efficacy on Listeria monocytogenes and Salmonella enterica. Int J Food Microbiol 2012; 158:147-54. [DOI: 10.1016/j.ijfoodmicro.2012.07.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/29/2012] [Accepted: 07/08/2012] [Indexed: 10/28/2022]
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Kuley E, Ozogul F, Durmus M, Gokdogan S, Kacar C, Ozogul Y, Ucar Y. The impact of applying natural clinoptilolite (zeolite) on the chemical, sensory and microbiological changes of vacuum packed sardine fillets. Int J Food Sci Technol 2012. [DOI: 10.1111/j.1365-2621.2012.03060.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Martínez-Abad A, Lagaron JM, Ocio MJ. Development and characterization of silver-based antimicrobial ethylene-vinyl alcohol copolymer (EVOH) films for food-packaging applications. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:5350-5359. [PMID: 22577863 DOI: 10.1021/jf300334z] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The use of silver as an antimicrobial in the food area has raised wide interest in recent years. In the present work, 0.001-10 wt % silver ions was satisfactorily incorporated into an ethylene-vinyl alcohol (EVOH) copolymer matrix by a solvent casting technique. The antibacterial efficacy of the composite was evaluated under laboratory conditions and in contact with some foods. The ionic compound did not affect the crystallinity or the water-induced plasticization of the materials and was homogeneously distributed across the surface and thickness of the films. When immersed in water, sorption-induced release of 50-100% of the silver ions took place in <30 min. In the bacterial minimal growth medium M9, the minimal inhibitory concentration (MIC) of the film was in the range of 0.01-0.1 ppm. High protein content food samples displayed low susceptibility to the films (<1 log reduction in any case), whereas low protein content food samples exhibited no detectable bacterial counts for films with 1 and 10 wt % silver and about 2 log reduction for films with 0.1 wt % silver. These results represent a step forward in the understanding of silver antimicrobial efficacy and its possible application in the food-packaging industry, most likely as food coatings.
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Affiliation(s)
- Antonio Martínez-Abad
- Novel Materials and Nanotechnology Group, IATA-CSIC, Avenida Agustin Escardino 7, 46980 Paterna (Valencia), Spain
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Metallic-based micro and nanocomposites in food contact materials and active food packaging. Trends Food Sci Technol 2012. [DOI: 10.1016/j.tifs.2011.10.001] [Citation(s) in RCA: 367] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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