151
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Chen Z, Lu J, Gao SH, Jin M, Bond PL, Yang P, Yuan Z, Guo J. Silver nanoparticles stimulate the proliferation of sulfate reducing bacterium Desulfovibrio vulgaris. WATER RESEARCH 2018; 129:163-171. [PMID: 29149671 DOI: 10.1016/j.watres.2017.11.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 06/07/2023]
Abstract
The intensive use of silver nanoparticles (AgNPs) in cosmetics and textiles causes their release into sewer networks of urban water systems. Although a few studies have investigated antimicrobial activities of nanoparticles against environmental bacteria, little is known about potential impacts of the released AgNPs on sulfate reducing bacteria in sewers. Here, we investigated the effect of AgNPs on Desulfovibrio vulgaris Hidenborough (D. vulgaris), a typical sulfate-reducing bacterium (SRB) in sewer systems. We found AgNPs stimulated the proliferation of D. vulgaris, rather than exerting inhibitory or biocidal effects. Based on flow cytometer detections, both the cell growth rate and the viable cell ratio of D. vulgaris increased during exposure to AgNPs at concentrations of up to 100 mg/L. The growth stimulation was dependent on the AgNP concentration. These results imply that the presence of AgNPs in sewage may affect SRB abundance in sewer networks. Our findings also shed new lights on the interactions of nanoparticles and bacteria.
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Affiliation(s)
- Zhaoyu Chen
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; Department of Environmental Science & Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ji Lu
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Shu-Hong Gao
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Min Jin
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Philip L Bond
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Ping Yang
- Department of Environmental Science & Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhiguo Yuan
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Jianhua Guo
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
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152
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Freire NB, Pires LC, Oliveira HP, Costa MM. Atividade antimicrobiana e antibiofilme de nanopartículas de prata sobre isolados de Aeromonas spp. obtidos de organismos aquáticos. PESQUISA VETERINÁRIA BRASILEIRA 2018. [DOI: 10.1590/1678-5150-pvb-4805] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
RESUMO: O uso indiscriminado de antimicrobianos tem proporcionado a algumas bactérias patogênicas a seleção de cepas multirresistentes, situação que pode ser agravada pela formação do biofilme. Desta forma, as nanopartículas de prata (AgNPs) vêm se destacando como uma alternativa inovadora, de baixo custo e eficiente contra doenças causadas por bactérias. O objetivo deste estudo foi determinar a atividade antimicrobiana das AgNPs e a interferência na formação do biofilme de Aeromonas spp. obtidas de organismos aquáticos. As AgNPs foram sintetizadas quimicamente utilizando como agente redutor o citrato trissódico e caracterizadas por espectrofotometria ultravioleta-visível (UV-Vis). A atividade antimicrobiana foi realizada contra três isolados pelo método de microdiluição em caldo para determinar a concentração bactericida mínima (CBM) e um cultivo com CCCP, um inibidor da bomba de efluxo, foi realizado para complementar o efeito das AgNPs. A interferência no biofilme foi realizada segundo o protocolo de formação e consolidado, além da caracterização desta estrutura de resistência por microscopia eletrônica de varredura. No teste da CBM, as AgNPs não foram capazes de inativar o crescimento dos isolados, ao passo que o nitrato de prata obteve eficiência em diferentes concentrações. Na presença do inibidor de bomba de efluxo, dos isolados analisados, um passou de resistente a sensível na presença das nanopartículas. As AgNPs foram eficazes em diminuir a formação de biofilme, como também atuaram sobre o biofilme consolidado em todos os isolados testados. Estes resultados indicam o potencial das nanopartículas de prata em interferir com o biofilme de Aeromonas spp. de organismos aquáticos e seres humanos.
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153
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Song Y, Jiang H, Bi H, Zhong G, Chen J, Wu Y, Wei W. Multifunctional Bismuth Oxychloride/Mesoporous Silica Composites for Photocatalysis, Antibacterial Test, and Simultaneous Stripping Analysis of Heavy Metals. ACS OMEGA 2018; 3:973-981. [PMID: 30023795 PMCID: PMC6044972 DOI: 10.1021/acsomega.7b01590] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 12/28/2017] [Indexed: 05/28/2023]
Abstract
The increasing complexity of environmental pollution nowadays poses a severe threat to the public health, which attracts considerable attentions in searching for nanomaterials of multiproperty. In this study, mesoporous silica of KIT-6-encapsulated bismuth oxychloride (BiOCl), an intrinsically multifunctional material exhibiting bunched structure in the composites, are facilely prepared under hydrothermal conditions. Subsequently, the produced materials of multifunctionality were applied for photocatalysis, antibacterial test, and simultaneous determination of heavy metals including lead and cadmium. A combination of physiochemical characterizations have revealed that the BiOCl-KIT-6 composites exhibit enlarged yet refined surface morphology contributing to the improved photocatalytic ability with a band gap of 3.06 eV at a molecular ratio of 8Bi-Si. Moreover, the antibacterial activities of our BiOCl-KIT-6 composites were explored, and possible antimicrobial mechanism related to the production of reactive oxygen species was discussed. Furthermore, a sensitive electrochemical determination of heavy metals of lead and cadmium using square-wave anodic stripping voltammetry was also achieved. The composites-modified glassy carbon electrode displays a linear range of calibration curve from 0.2 to 300 μg/L with a detection limit of 0.05 μg/L (Pb2+) and 0.06 μg/L (Cd2+), respectively.
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Affiliation(s)
- Yiyan Song
- School
of Public Health, School of Pharmacy, and Key Laboratory of Pathogen Biology
of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing 211166, China
| | - Huijun Jiang
- School
of Public Health, School of Pharmacy, and Key Laboratory of Pathogen Biology
of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing 211166, China
| | - Hongkai Bi
- School
of Public Health, School of Pharmacy, and Key Laboratory of Pathogen Biology
of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing 211166, China
| | - Guowei Zhong
- School
of Public Health, School of Pharmacy, and Key Laboratory of Pathogen Biology
of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing 211166, China
| | - Jin Chen
- School
of Public Health, School of Pharmacy, and Key Laboratory of Pathogen Biology
of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing 211166, China
- The
Key Laboratory of Modern Toxicology, Ministry of Education, School
of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Yuan Wu
- Department
of Medical Oncology, Jiangsu Cancer Hospital,
Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital
of Nanjing Medical University, Nanjing 210009, China
| | - Wei Wei
- Key
Laboratory
of Environmental Medicine and Engineering, Ministry of Education,
Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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154
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Slate AJ, Wickens DJ, El Mohtadi M, Dempsey-Hibbert N, West G, Banks CE, Whitehead KA. Antimicrobial activity of Ti-ZrN/Ag coatings for use in biomaterial applications. Sci Rep 2018; 8:1497. [PMID: 29367635 PMCID: PMC5784091 DOI: 10.1038/s41598-018-20013-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 01/12/2018] [Indexed: 12/31/2022] Open
Abstract
Severely broken bones often require external bone fixation pins to provide support but they can become infected. In order to reduce such infections, novel solutions are required. Titanium zirconium nitride (Ti-ZrN) and Ti-ZrN silver (Ti-ZrN/Ag) coatings were deposited onto stainless steel. Surface microtopography demonstrated that on the silver containing surfaces, Sa and Sv values demonstrated similar trends whilst the Ra, average height and RMS value and Sp values increased with increasing silver concentration. On the Ti-ZrN/Ag coatings, surface hydrophobicity followed the same trend as the Sa and Sv values. An increase in dead Staphylococcus aureus and Staphylococcus epidermidis cells was observed on the coatings with a higher silver concentration. Using CTC staining, a significant increase in S. aureus respiration on the silver containing surfaces was observed in comparison to the stainless steel control whilst against S. epidermidis, no significant difference in viable cells was observed across the surfaces. Cytotoxicity testing revealed that the TiZrN coatings, both with and without varying silver concentrations, did not possess a detrimental effect to a human monocyte cell line U937. This work demonstrated that such coatings have the potential to reduce the viability of bacteria that result in pin tract infections.
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Affiliation(s)
- Anthony J Slate
- Microbiology at Interfaces Group, School of Healthcare Sciences, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK.,School of Science and the Environment, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | | | - Mohamed El Mohtadi
- Microbiology at Interfaces Group, School of Healthcare Sciences, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Nina Dempsey-Hibbert
- Microbiology at Interfaces Group, School of Healthcare Sciences, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Glen West
- Surface Engineering Group, School of Engineering, Manchester Metropolitan University, Manchester, M1 5GD, UK
| | - Craig E Banks
- School of Science and the Environment, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Kathryn A Whitehead
- Microbiology at Interfaces Group, School of Healthcare Sciences, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK.
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155
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Westmeier D, Hahlbrock A, Reinhardt C, Fröhlich-Nowoisky J, Wessler S, Vallet C, Pöschl U, Knauer SK, Stauber RH. Nanomaterial–microbe cross-talk: physicochemical principles and (patho)biological consequences. Chem Soc Rev 2018; 47:5312-5337. [DOI: 10.1039/c6cs00691d] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
NPs’ characteristics impact their spontaneous binding to microbes, which may affect the (patho)biological identity of both NP and microbes.
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Affiliation(s)
- D. Westmeier
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - A. Hahlbrock
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - C. Reinhardt
- Center for Thrombosis and Hemostasis
- University Medical Center Mainz
- 55101 Mainz
- Germany
| | - J. Fröhlich-Nowoisky
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. Wessler
- Department of Molecular Biology
- Paris-Lodron University of Salzburg
- A-5020 Salzburg
- Austria
| | - C. Vallet
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - U. Pöschl
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. K. Knauer
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - R. H. Stauber
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
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156
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Crampon M, Hellal J, Mouvet C, Wille G, Michel C, Wiener A, Braun J, Ollivier P. Do natural biofilm impact nZVI mobility and interactions with porous media? A column study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 610-611:709-719. [PMID: 28822938 DOI: 10.1016/j.scitotenv.2017.08.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/10/2017] [Accepted: 08/11/2017] [Indexed: 06/07/2023]
Abstract
Nanoparticles (NP) used as remediation agents for groundwater treatment may interact with biofilms naturally present, altering NP mobility and/or reactivity and thereby NP effectiveness. The influence of the presence of a multi species biofilm on the mobility of two types of zero-valent iron NP (nZVI; NANOFER 25S and optimized NANOFER STAR, NanoIron s.r.o. (Czech Republic)) was tested in laboratory experiments with columns mimicking aquifer conditions. Biofilms were grown in columns filled with sand in nitrate reducing conditions using groundwater from an industrial site as inoculum. After two months growth, they were composed of several bacterial species, dominated by Pseudomonas stutzeri. Biofilm strongly affected the physical characteristics of the sand, decreasing total porosity from ~30% to ~15%, and creating preferential pathways with high flow velocities. nZVI suspensions were injected into the columns at a seepage velocity of 10mday-1. Presence of biofilm did not impact the concentrations of Fe at the column outlet nor the amount of total Fe retained in the sand, as attested by the measurement of magnetic susceptibility. However, it had a significant impact on NP size sorting as well as on total Fe distribution along the column. This suggests nZVI-biofilm interactions that were confirmed by microscopic observations using SEM/STEM coupled with energy-dispersive X-ray spectroscopy. Our study shows that biofilm modifies the water flow velocity in the porous media, favoring the transport of large aggregates and decreased NP mobility due to physical and chemical interactions.
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Affiliation(s)
- Marc Crampon
- BRGM, D3E/BGE, Avenue Claude Guillemin, BP 36009, 45060 Orléans Cedex 2, France.
| | - Jennifer Hellal
- BRGM, D3E/BGE, Avenue Claude Guillemin, BP 36009, 45060 Orléans Cedex 2, France
| | - Christophe Mouvet
- BRGM, D3E/BGE, Avenue Claude Guillemin, BP 36009, 45060 Orléans Cedex 2, France
| | - Guillaume Wille
- BRGM, LAB, Avenue Claude Guillemin, BP 36009, 45060 Orléans Cedex 2, France
| | - Caroline Michel
- BRGM, D3E/BGE, Avenue Claude Guillemin, BP 36009, 45060 Orléans Cedex 2, France
| | - Anke Wiener
- University of Stuttgart, IWS, VEGAS, Pfaffenwaldring 61, 70569 Stuttgart, Germany
| | - Juergen Braun
- University of Stuttgart, IWS, VEGAS, Pfaffenwaldring 61, 70569 Stuttgart, Germany
| | - Patrick Ollivier
- BRGM, D3E/BGE, Avenue Claude Guillemin, BP 36009, 45060 Orléans Cedex 2, France
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157
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Oliver S, Wagh H, Liang Y, Yang S, Boyer C. Enhancing the antimicrobial and antibiofilm effectiveness of silver nanoparticles prepared by green synthesis. J Mater Chem B 2018; 6:4124-4138. [DOI: 10.1039/c8tb00907d] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Water soluble catechin oligomers produce small (8.5 nm) silver nanoparticles with high antimicrobial and antibiofilm efficacy.
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Affiliation(s)
- Susan Oliver
- Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Harsha Wagh
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Yuanli Liang
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Shuang Yang
- Centre for Advanced Macromolecular Design (CAMD)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
| | - Cyrille Boyer
- Australian Centre for NanoMedicine (ACN)
- School of Chemical Engineering
- University of New South Wales
- Sydney
- Australia
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158
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Hinostroza Ramos JV, Anselme K, Simon-Masseron A, Ploux L. Bio-sourced phosphoprotein-based synthesis of silver-doped macroporous zinc phosphates and their antibacterial properties. RSC Adv 2018; 8:25112-25122. [PMID: 35542135 PMCID: PMC9082325 DOI: 10.1039/c8ra04438d] [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: 05/24/2018] [Accepted: 06/10/2018] [Indexed: 11/21/2022] Open
Abstract
The usual sources of phosphorus for metal phosphates are obtained from phosphate rocks, of which resources are depleted. As a substitute for these mineral sources, an original method of synthesis has been developed to prepare macroporous zinc phosphates using casein phosphoprotein. This bio-sourced reactant plays during the synthesis the roles of both a phosphorus source and a reducing agent for silver nanoparticles. Thus, zinc phosphates loaded with different Ag contents (up to 6.4 wt%) are prepared via hydrothermal treatment at 100 °C. Silver nanoparticles co-crystallized with hopeite, Zn3(PO4)2 and/or Zn2P2O7. In addition, casein induces porosity within the zinc phosphate framework and provides macropores (diameter of >50 nm) during calcination. The antibacterial properties against Escherichia coli K12 bacteria of Ag-containing and Ag-free porous zinc phosphates (calcined at 750 °C) were also tested for the first time. Phosphoproteins as key reactants in an original method of synthesis of silver-doped macroporous zinc phosphates with antibacterial properties.![]()
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Affiliation(s)
| | - Karine Anselme
- Université de Haute-Alsace
- CNRS
- IS2M UMR 7361
- F-68100 Mulhouse
- France
| | | | - Lydie Ploux
- Université de Haute-Alsace
- CNRS
- IS2M UMR 7361
- F-68100 Mulhouse
- France
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159
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Song C, Yang CM, Sun XF, Xia PF, Qin J, Guo BB, Wang SG. Influences of graphene oxide on biofilm formation of gram-negative and gram-positive bacteria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:2853-2860. [PMID: 29143262 DOI: 10.1007/s11356-017-0616-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 10/24/2017] [Indexed: 06/07/2023]
Abstract
In this study, we evaluated the influences of graphene oxide (GO) on biofilm formation. Escherichia coli MG1655 and Bacillus subtilis 168 were used as models for Gram-negative and Gram-positive bacteria. The growth profiles and viability assays indicated that GO exhibited a high antibacterial activity, of which the negative effects on bacteria growth raised with the increasing GO concentration. The antibacterial activity of GO was mainly attributed to the membrane stress and ROS-independent oxidative stress. Moreover, it was worthy to note that the biofilm formation was enhanced in the presence of GO at low dosage whereas inhibited in the high-concentration GO environment. These results could be explained by the roles of the dead cells, which were inactivated by GO. When the concentration of GO was limited, only a part of the cells would be inactivated, which may then serve as a protection barrier as well as the necessary nutrient to the remaining living cells for the formation of biofilm. In contrast, with a sufficient presence of GO, almost all cells can be inactivated completely and thus the formation of biofilm could no longer be triggered. Overall, the present work provides significant new insights on the influence of carbon nanomaterials towards biofilm formation, which has far-reaching implications in the field of biofouling and membrane bioreactor. Graphical abstract ᅟ.
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Affiliation(s)
- Chao Song
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China
| | - Chun-Miao Yang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China
| | - Xue-Fei Sun
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China.
| | - Peng-Fei Xia
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China
| | - Jing Qin
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China
| | - Bei-Bei Guo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China
| | - Shu-Guang Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, China.
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160
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Salem NA, Wahba MA, Eisa WH, El-Shamarka M, Khalil W. Silver oxide nanoparticles alleviate indomethacin-induced gastric injury: a novel antiulcer agent. Inflammopharmacology 2017; 26:1025-1035. [DOI: 10.1007/s10787-017-0424-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 11/21/2017] [Indexed: 12/20/2022]
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161
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Pisárčik M, Jampílek J, Lukáč M, Horáková R, Devínsky F, Bukovský M, Kalina M, Tkacz J, Opravil T. Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length. Molecules 2017; 22:molecules22101794. [PMID: 29065563 PMCID: PMC6151783 DOI: 10.3390/molecules22101794] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 11/16/2022] Open
Abstract
The present study is focused on the synthesis and investigation of the physicochemical and biological properties of silver nanoparticles stabilized with a series of cationic gemini surfactants having a polymethylene spacer of variable length. UV-VIS spectroscopy, dynamic light scattering, scanning electron microscopy and zeta potential measurements were applied to provide physicochemical characterization of the silver nanoparticles. The mean size values of the nanoparticles were found to be in the 50 to 115 nm range. From the nanoparticle size distributions and scanning electron microscopy images it results that a population of small nanoparticles with the size of several nanometers was confirmed if the nanoparticles were stabilized with gemini molecules with either a short methylene spacer (two or four −CH2− groups) or a long spacer (12 −CH2− groups). The average zeta potential value for silver nanoparticles stabilized with gemini molecules is roughly independent of gemini surfactant spacer length and is approx. +58 mV. An interaction model between silver nanoparticles and gemini molecules which reflects the gained experimental data, is suggested. Microbicidal activity determinations revealed that the silver nanoparticles stabilized with gemini surfactants are more efficient against Gram-negative bacteria and yeasts, which has a direct relation to the interaction mechanism of nanoparticles with the bacterial cell membrane and its structural composition.
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Affiliation(s)
- Martin Pisárčik
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Josef Jampílek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University, Bratislava SK-83232, Slovakia.
| | - Miloš Lukáč
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Renáta Horáková
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Ferdinand Devínsky
- Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
- Faculty of Pharmacy, Comenius University, Kalinčiakova 8, Bratislava SK-83232, Slovakia.
| | - Marián Bukovský
- Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University, Bratislava SK-83232, Slovakia.
| | - Michal Kalina
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, CZ-61200 Brno, Czech Republic.
| | - Jakub Tkacz
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, CZ-61200 Brno, Czech Republic.
| | - Tomáš Opravil
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, CZ-61200 Brno, Czech Republic.
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162
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Chang ZM, Wang Z, Lu MM, Shao D, Yue J, Yang D, Li MQ, Dong WF. Janus silver mesoporous silica nanobullets with synergistic antibacterial functions. Colloids Surf B Biointerfaces 2017; 157:199-206. [DOI: 10.1016/j.colsurfb.2017.05.079] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 05/13/2017] [Accepted: 05/31/2017] [Indexed: 01/01/2023]
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163
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Gao T, Fan H, Wang X, Gao Y, Liu W, Chen W, Dong A, Wang YJ. Povidone-Iodine-Based Polymeric Nanoparticles for Antibacterial Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:25738-25746. [PMID: 28707872 DOI: 10.1021/acsami.7b05622] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
As microbial contamination is becoming more and more serious, antibacterial agents play an important role in preventing and removing bacterial pathogens from microbial pollution in our daily life. To solve the issues with water solubility and antibacterial stability of PVP-I2 (povidone-iodine) as a strong antibacterial agent, we successfully obtain hydrophobic povidone-iodine nanoparticles (povidone-iodine NPs) by a two-step method related to the advantage of nanotechnology. First, the synthesis of poly(N-vinyl-2-pyrrolidone-co-methyl methacrylate) nanoparticles, i.e., P(NVP-MMA) NPs, was controlled by tuning a feed ratio of NVP to MMA. Then, the products P(NVP-MMA) NPs were allowed to undergo a complexation reaction with iodine, resulting in the formation of a water-insoluble antibacterial material, povidone-iodine NPs. It is found that the feed ratio of NVP to MMA has an active effect on morphology, chemical composition, molecular weight, and hydrophilic-hydrophobic properties of the P(NVP-MMA) copolymer after some technologies, such as SEM, DLS, elemental analysis, 1H NMR, GPC, and the contact angle test, were used in the characterizations. The antibacterial property of povidone-iodine NPs was investigated by using Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and Pseudomonas aeruginosa (P. aeruginosa) as model bacteria with the colony count method. Interestingly, three products, such as glue, ink, and dye, after the incorporation of povidone-iodine NPs, show significant antibacterial properties. It is believed that, with the advantage of nanoscale morphology, the final povidone-iodine NPs should have great potential for utilization in various fields where antifouling and antibacterial properties are highly required.
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Affiliation(s)
- Tianyi Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Hongbo Fan
- The School of Environment and Civil Engineering, Dongguan University of Technology , No. 1 Daxue Road, Songshan Lake, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Xinjie Wang
- Jiujiang Sixth People's Hospital , 145 Qianjin East Road, Lianxi District, Jiujiang, Jiangxi Province 332005, People's Republic of China
| | - Yangyang Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Wenxin Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Wanjun Chen
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Yan-Jie Wang
- The School of Environment and Civil Engineering, Dongguan University of Technology , No. 1 Daxue Road, Songshan Lake, Dongguan, Guangdong Province 523808, People's Republic of China
- Department of Chemical and Biological Engineering, University of British Columbia , 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
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164
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Noronha VT, Paula AJ, Durán G, Galembeck A, Cogo-Müller K, Franz-Montan M, Durán N. Silver nanoparticles in dentistry. Dent Mater 2017; 33:1110-1126. [PMID: 28779891 DOI: 10.1016/j.dental.2017.07.002] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/11/2017] [Accepted: 07/08/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Silver nanoparticles (AgNPs) have been extensively studied for their antimicrobial properties, which provide an extensive applicability in dentistry. Because of this increasing interest in AgNPs, the objective of this paper was to review their use in nanocomposites; implant coatings; pre-formulation with antimicrobial activity against cariogenic pathogens, periodontal biofilm, fungal pathogens and endodontic bacteria; and other applications such as treatment of oral cancer and local anesthesia. Recent achievements in the study of the mechanism of action and the most important toxicological aspects are also presented. METHODS Systematic searches were carried out in Web of Science (ISI), Google, PubMed, SciFinder and EspaceNet databases with the keywords "silver nano* or AgNP*" and "dentist* or dental* or odontol*". RESULTS A total of 155 peer-reviewed articles were reviewed. Most of them were published in the period of 2012-2017, demonstrating that this topic currently represents an important trend in dentistry research. In vitro studies reveal the excellent antimicrobial activity of AgNPs when associated with dental materials such as nanocomposites, acrylic resins, resin co-monomers, adhesives, intracanal medication, and implant coatings. Moreover, AgNPs were demonstrated to be interesting tools in the treatment of oral cancers due to their antitumor properties. SIGNIFICANCE The literature indicates that AgNPs are a promising system with important features such as antimicrobial, anti-inflammatory and antitumor activity, and a potential carrier in sustained drug delivery. However, there are some aspects of the mechanisms of action of AgNPs, and some important toxicological aspects arising from the use of this system that must be completely elucidated.
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Affiliation(s)
- Victor T Noronha
- Solid-Biological Interface Group (SolBIN), Department of Physics, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Amauri J Paula
- Solid-Biological Interface Group (SolBIN), Department of Physics, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
| | - Gabriela Durán
- Faculdade de Odontologia, Pontifícia Universidade Católica de Campinas, Campinas, SP, Brazil
| | - Andre Galembeck
- Fundamental Chemistry Department, Universidade Federal de Pernambuco, Recife, PE, Brazil; Centro de Tecnologias Estratégicas do Nordeste (CETENE), Campus MCTI Nordeste, Recife, PE, Brazil
| | - Karina Cogo-Müller
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas, Campinas, SP, Brazil; Department of Physiological Sciences, Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Michelle Franz-Montan
- Department of Physiological Sciences, Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, Campinas, SP, Brazil.
| | - Nelson Durán
- Department of Physiological Sciences, Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, Campinas, SP, Brazil; NanoBioss Laboratory, Universidade Estadual de Campinas, SP, Brazil; National Nanotechnology Laboratory (LNNano) CNPEM, Campinas, SP, Brazil
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165
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Masheane ML, Nthunya LN, Malinga SP, Nxumalo EN, Mamba BB, Mhlanga SD. Synthesis of Fe-Ag/f-MWCNT/PES nanostructured-hybrid membranes for removal of Cr(VI) from water. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.04.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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166
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Plakunov VK, Mart’yanov SV, Teteneva NA, Zhurina MV. Controlling of microbial biofilms formation: Anti- and probiofilm agents. Microbiology (Reading) 2017. [DOI: 10.1134/s0026261717040129] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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167
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Naik K, Kowshik M. The silver lining: towards the responsible and limited usage of silver. J Appl Microbiol 2017. [DOI: 10.1111/jam.13525] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- K. Naik
- Department of Biological Sciences; BITS Pilani K K Birla Goa Campus; Zuarinagar Goa India
| | - M. Kowshik
- Department of Biological Sciences; BITS Pilani K K Birla Goa Campus; Zuarinagar Goa India
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168
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Theologides CP, Theofilou SP, Anayiotos A, Costa CN. Preventing maritime transport of pathogens: the remarkable antimicrobial properties of silver-supported catalysts for ship ballast water disinfection. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 76:712-718. [PMID: 28759453 DOI: 10.2166/wst.2017.266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ship ballast water (SBW) antimicrobial treatment is considered as a priority issue for the shipping industry. The present work investigates the possibility of utilizing antimicrobial catalysis as an effective method for the treatment of SBW. Taking into account the well-known antimicrobial properties of ionic silver (Ag+), five silver-supported catalysts (Ag/γ-Al2O3) with various loadings (0.05, 0.1, 0.2, 0.5, and 1 wt%) were prepared and examined for the antimicrobial treatment of SBW. The bactericidal activity of the aforementioned catalysts was investigated towards the inhibition of Escherichia coli (Gram-negative) and Escherichia faecalis (Gram-positive) bacteria. Catalytic experiments were conducted in a three-phase continuous flow stirred tank reactor, used in a semi-batch mode. It was found that using the catalyst with the lowest metal loading, the inhibition of E. coli reached 95.8% after 30 minutes of treatment of an E. coli bacterial solution, while the inhibition obtained for E. faecalis was 76.2% after 60 minutes of treatment of an E. faecalis bacterial solution. Even better results (100% inhibition after 5 min of reaction) were obtained using the catalysts with higher Ag loadings. The results of the present work indicate that the prepared monometallic catalysts exert their antimicrobial activity within a short period of time, revealing, for the first time ever, that the field of antimicrobial heterogeneous catalysis using deposited ionic silver on a solid support may prove decisive for the disinfection of SBW.
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Affiliation(s)
- C P Theologides
- Department of Environmental Management and Technology, Laboratory of Environmental Catalysis, Cyprus University of Technology, P.O. Box: 50329, Limassol CY 3606, Cyprus E-mail:
| | - S P Theofilou
- Department of Environmental Management and Technology, Laboratory of Environmental Catalysis, Cyprus University of Technology, P.O. Box: 50329, Limassol CY 3606, Cyprus E-mail:
| | - A Anayiotos
- Department of Environmental Management and Technology, Laboratory of Environmental Catalysis, Cyprus University of Technology, P.O. Box: 50329, Limassol CY 3606, Cyprus E-mail:
| | - C N Costa
- Department of Environmental Management and Technology, Laboratory of Environmental Catalysis, Cyprus University of Technology, P.O. Box: 50329, Limassol CY 3606, Cyprus E-mail:
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169
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Salomoni R, Léo P, Montemor AF, Rinaldi BG, Rodrigues M. Antibacterial effect of silver nanoparticles in Pseudomonas aeruginosa. Nanotechnol Sci Appl 2017; 10:115-121. [PMID: 28721025 PMCID: PMC5499936 DOI: 10.2147/nsa.s133415] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pseudomonas aeruginosa has great intrinsic antimicrobial resistance limiting the number of effective antibiotics. Thus, other antimicrobial agents such as silver nanoparticles (AgNPs) are considered potential agents to help manage and prevent infections. AgNPs can be used in several applications against bacteria resistant to common antibiotics or even multi-resistant bacteria such as P. aeruginosa. This study assessed the antimicrobial activity of commercial 10 nm AgNPs on two hospital strains of P. aeruginosa resistant to a large number of antibiotics and a reference strain from a culture collection. All strains were susceptible to 5 µg/mL nanoparticles solution. Reference strains INCQS 0230 and P.a.1 were sensitive to AgNPs at concentrations of 1.25 and 0.156 µg/mL, respectively; however, this was not observed for hospital strain P.a.2, which was more resistant to all antibiotics and AgNPs tested. Cytotoxicity evaluation indicated that AgNPs, up to a concentration of 2.5 µg/mL, are very safe for all cell lines tested. At 5.0 µg/mL, AgNPs had a discrete cytotoxic effect on tumor cells HeLa and HepG2. Results showed the potential of using AgNPs as an alternative to conventional antimicrobial agents that are currently used, and a perspective for application of nanosilver with antibiotics to enhance antimicrobial activity.
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Affiliation(s)
- R Salomoni
- Biotechnology Interunits Pos Graduation Program, University of Sao Paulo - USP, Butantan Institute, Institute for Technological Research - IPT, Sao Paulo, SP, Brazil.,Industrial Biotechnology Laboratory, Bionanomanufacture Nucleus, Institute for Technological Research - IPT, São Paulo, SP, Brazil
| | - P Léo
- Industrial Biotechnology Laboratory, Bionanomanufacture Nucleus, Institute for Technological Research - IPT, São Paulo, SP, Brazil
| | - A F Montemor
- Industrial Biotechnology Laboratory, Bionanomanufacture Nucleus, Institute for Technological Research - IPT, São Paulo, SP, Brazil
| | - B G Rinaldi
- Industrial Biotechnology Laboratory, Bionanomanufacture Nucleus, Institute for Technological Research - IPT, São Paulo, SP, Brazil
| | - Mfa Rodrigues
- Industrial Biotechnology Laboratory, Bionanomanufacture Nucleus, Institute for Technological Research - IPT, São Paulo, SP, Brazil
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170
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Vanaraj S, Keerthana BB, Preethi K. Biosynthesis, Characterization of Silver Nanoparticles Using Quercetin from Clitoria ternatea L to Enhance Toxicity Against Bacterial Biofilm. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0595-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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171
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Vazquez-Muñoz R, Borrego B, Juárez-Moreno K, García-García M, Mota Morales JD, Bogdanchikova N, Huerta-Saquero A. Toxicity of silver nanoparticles in biological systems: Does the complexity of biological systems matter? Toxicol Lett 2017; 276:11-20. [PMID: 28483428 DOI: 10.1016/j.toxlet.2017.05.007] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 04/03/2017] [Accepted: 05/05/2017] [Indexed: 12/20/2022]
Abstract
Currently, nanomaterials are more frequently in our daily life, specifically in biomedicine, electronics, food, textiles and catalysis just to name a few. Although nanomaterials provide many benefits, recently their toxicity profiles have begun to be explored. In this work, the toxic effects of silver nanoparticles (35nm-average diameter and Polyvinyl-Pyrrolidone-coated) on biological systems of different levels of complexity was assessed in a comprehensive and comparatively way, through a variety of viability and toxicological assays. The studied organisms included viruses, bacteria, microalgae, fungi, animal and human cells (including cancer cell lines). It was found that biological systems of different taxonomical groups are inhibited at concentrations of silver nanoparticles within the same order of magnitude. Thus, the toxicity of nanomaterials on biological/living systems, constrained by their complexity, e.g. taxonomic groups, resulted contrary to the expected. The fact that cells and virus are inhibited with a concentration of silver nanoparticles within the same order of magnitude could be explained considering that silver nanoparticles affects very primitive cellular mechanisms by interacting with fundamental structures for cells and virus alike.
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Affiliation(s)
- Roberto Vazquez-Muñoz
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, CP 22860, Ensenada, Baja California, Mexico; Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Tijuana-Ensenada 3918, CP 22860, Ensenada, Baja California, Mexico
| | - Belen Borrego
- Centro de Investigación en Sanidad Animal, INIA (National Research Institute for Agricultural and Food Technology), Carretera Algete el Casar s/n, 28130, Valdeolmos, Madrid, Spain
| | - Karla Juárez-Moreno
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, CP 22860, Ensenada, Baja California, Mexico
| | - Maritza García-García
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, CP 22860, Ensenada, Baja California, Mexico
| | - Josué D Mota Morales
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, CP 22860, Ensenada, Baja California, Mexico; Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Querétaro, Querétaro 76230, Mexico
| | - Nina Bogdanchikova
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, CP 22860, Ensenada, Baja California, Mexico
| | - Alejandro Huerta-Saquero
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, CP 22860, Ensenada, Baja California, Mexico.
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172
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Abstract
Understanding the interplay between bacterial pathogens and antimicrobials is a key to realize the control over infections causing morbidity and mortality. An important current issue of contemporary medicine and microbiology is the search for new strategies for adequate therapy of infectious diseases associated with rapidly emerging multidrug-resistant (MDR) pathogens. Recently, a great deal of progress has been made in the field of nanobiotechnology towards the development of various nanoantimicrobials (NAMs) as novel therapeutic solution. Current microbiological studies, employing either synthetic antibiotics or natural antimicrobial, have demonstrated the ability of NAMs to tackle the issue of MDR by reverting the mechanisms of resistance. The present review critically discusses the various factors that can contribute to modulate the effects of NAMs on microbes. It includes essential features of NAMs including but not limited to composition, surface charge, loading capacity, size, hydrophobicity/philicity, controlled release and functionalization. In contrast, how microbial structural differences, biofilm formation, persister cells and intracellular pathogens contribute towards sensitivity or resistance towards antimicrobials is comprehensively analysed. These multilateral factors should be considered earnestly in order to make NAMs a successful alternative of the conventional antibiotics.
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Affiliation(s)
- Bushra Jamil
- a Department of Biosciences, Faculty of Sciences , COMSATS Institute of Information Technology , Islamabad , Pakistan
| | - Muhammad Imran
- a Department of Biosciences, Faculty of Sciences , COMSATS Institute of Information Technology , Islamabad , Pakistan
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173
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Proactive Approach for Safe Use of Antimicrobial Coatings in Healthcare Settings: Opinion of the COST Action Network AMiCI. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14040366. [PMID: 28362344 PMCID: PMC5409567 DOI: 10.3390/ijerph14040366] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 03/22/2017] [Accepted: 03/28/2017] [Indexed: 12/17/2022]
Abstract
Infections and infectious diseases are considered a major challenge to human health in healthcare units worldwide. This opinion paper was initiated by EU COST Action network AMiCI (AntiMicrobial Coating Innovations) and focuses on scientific information essential for weighing the risks and benefits of antimicrobial surfaces in healthcare settings. Particular attention is drawn on nanomaterial-based antimicrobial surfaces in frequently-touched areas in healthcare settings and the potential of these nano-enabled coatings to induce (eco)toxicological hazard and antimicrobial resistance. Possibilities to minimize those risks e.g., at the level of safe-by-design are demonstrated.
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174
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Kirschner MRC, Rippel T, Ternus R, Duarte GW, Riella HG, Dal Magro J, Mello JMM, Silva LL, Fiori MA. Antibacterial polyamide obtained by the incorporation of glass microparticles doped with ionic zinc and by zinc oxide nanoparticle: Evaluation withSalmonella typhimuriumandStaphylococcus aureus. J Appl Polym Sci 2017. [DOI: 10.1002/app.45005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- M. R. C. Kirschner
- Post-Graduation Program in Environmental Science; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
| | - T. Rippel
- Chemical Engineering Department; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
| | - R. Ternus
- Chemical Engineering Department; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
| | - G. W. Duarte
- Post-Graduation Program in Chemical Engineering; Universidade Federal de Santa Catarina (UFSC); Florianópolis SC Brazil
| | - H. G. Riella
- Post-Graduation Program in Chemical Engineering; Universidade Federal de Santa Catarina (UFSC); Florianópolis SC Brazil
| | - J. Dal Magro
- Post-Graduation Program in Environmental Science; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
| | - J. M. M. Mello
- Post-Graduation Program in Environmental Science; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
- Post-Graduation Program in Technology and Management of the Innovation; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
| | - L. L. Silva
- Post-Graduation Program in Technology and Management of the Innovation; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
| | - M. A. Fiori
- Post-Graduation Program in Environmental Science; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
- Post-Graduation Program in Technology and Management of the Innovation; Universidade Comunitária da Região de Chapecó (UNOCHAPECÓ); Chapecó SC Brazil
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175
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Bertuccio AJ, Tilton RD. Silver Sink Effect of Humic Acid on Bacterial Surface Colonization in the Presence of Silver Ions and Nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:1754-1763. [PMID: 27997146 DOI: 10.1021/acs.est.6b04957] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Silver nanoparticles (AgNPs) released from consumer products may enter the environment and possibly harm microbial communities. Prior research showed that surface-adherent AgNPs inhibit bacterial surface colonization, a precursor to biofilm formation, only when planktonic bacterial inoculum concentrations are less than a threshold level ( Wirth and co-workers, J. Colloid Interface Sci. 2016 , 467 , 17 - 27 ). This inoculum effect is due to a decrease in free silver ion concentration associated with sublethal binding to bacteria. Natural organic matter can be an additional silver sink in environmental systems. Using Pseudomonas fluorescens as a model biofilm-forming bacterium, we find significant increases in minimum bactericidal concentrations for AgNP suspensions and Ag+ in solution when adding humic acid (HA) to bacterial suspensions. When HA is present, planktonic bacteria survive and colonize AgNP-laden glass surfaces at lower bacterial inoculum concentrations than were needed for survival and colonization in its absence. This occurs despite the observed tendency of HA to inhibit colonization on bare glass surfaces when silver is absent. Results are interpreted through equilibrium Ag+ binding isotherms to HA and suspended bacteria. These results indicate that silver ion sinks may lessen AgNP impacts on natural microbial ecology relative to the disruption observed in pristine laboratory conditions.
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Affiliation(s)
- Alex J Bertuccio
- Center for Complex Fluids Engineering and Center for Environmental Implications of Nanotechnology, Department of Chemical Engineering, and ‡Department of Biomedical Engineering, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States
| | - Robert D Tilton
- Center for Complex Fluids Engineering and Center for Environmental Implications of Nanotechnology, Department of Chemical Engineering, and ‡Department of Biomedical Engineering, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States
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176
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Bialy BEE, Hamouda RA, Khalifa KS, Hamza HA. Cytotoxic Effect of Biosynthesized Silver Nanoparticles on Ehrlich
Ascites Tumor Cells in Mice. INT J PHARMACOL 2017. [DOI: 10.3923/ijp.2017.134.144] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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177
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Antibiofilm efficacy of green synthesized graphene oxide-silver nanocomposite using Lagerstroemia speciosa floral extract: A comparative study on inhibition of gram-positive and gram-negative biofilms. Microb Pathog 2017; 103:167-177. [DOI: 10.1016/j.micpath.2016.12.022] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 12/02/2016] [Accepted: 12/21/2016] [Indexed: 01/22/2023]
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178
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Shrivas K, Ghosale A, Maji P. Advanced Nanomaterials for the Removal of Chemical Substances and Microbes From Contaminated and Waste Water. ADVANCED NANOMATERIALS FOR WATER ENGINEERING, TREATMENT, AND HYDRAULICS 2017. [DOI: 10.4018/978-1-5225-2136-5.ch006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of cost-effective, efficient and stable materials helps to provide the affordable solutions to get safe and fresh water to increasing population with health guidelines of emerging contaminants. Nanomaterials (NMs)-based techniques involve the design, synthesis, manipulation, characterization and exploitation of materials for adsorption and separation of target species from the contaminated and waste water. NMs show better adsorption capacity and catalytic for number chemical species and microbes because of their small size and large surface area that favors the purification and treatment of waste or contaminated environmental water. Here, we present the chemical properties, adsorption/removal mechanism and applications of advanced NMs such as magnetic nanoparticles (MNPs), carbon nanotubes (CNTs), graphene and graphene oxide (GO), titanium oxide (TiO2), silica (SiO2), silver (Ag), gold (Au) NPs and zeolites in effective and efficient removal of toxic metal ions, organic and inorganic chemical substances and disease-causing microbes from contaminated and wastewater.
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179
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Siczek K, Zatorski H, Chmielowiec-Korzeniowska A, Kordek R, Tymczyna L, Fichna J. Evaluation of anti-inflammatory effect of silver-coated glass beads in mice with experimentally induced colitis as a new type of treatment in inflammatory bowel disease. Pharmacol Rep 2017; 69:386-392. [PMID: 28267639 DOI: 10.1016/j.pharep.2017.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 01/09/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Recent studies point at the anti-inflammatory action of silver through induction of apoptosis of inflammatory cells via oxidative stress, promotion of wound healing as well as antimicrobial effect. Our aim was to design a new formulation based on silver and validate its anti-inflammatory activity in the mouse models of colitis. METHODS Silver-coated glass beads were prepared using a magnetron sputtering method and a standard magnetron sputtering gun equipped with pure silver target. Colitis was induced by the ic administration of TNBS into colon (to mimic Crohn's disease) and addition of DSS to drinking water (to imitate ulcerative colitis). Evaluation of inflammation was performed based on macroscopic and microscopic scoring, quantification of the myeloperoxidase activity and colonic microflora analysis. RESULTS Silver-coated glass beads administered ic alleviated intestinal inflammation in mouse models of colitis, induced by TNBS and DSS. This alleviation of colitis resulted principally from changes in the gut microflora. The anti-inflammatory action of the new formulation was associated predominantly with the presence of the silver nanolayer on the beads, and to a lesser extent the size of glass polymer units. CONCLUSIONS The application of the newly developed formulation employing silver-coated glass beads has the potential to be translated to clinical conditions for the efficient treatment of IBD.
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Affiliation(s)
- Krzysztof Siczek
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Łódź, Poland; Department of Vehicles and Fundamentals of Machine Design, Faculty of Mechanical Engineering, Lodz University of Technology, Łódź, Poland
| | - Hubert Zatorski
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Łódź, Poland
| | - Anna Chmielowiec-Korzeniowska
- Department of Animal Hygiene and Environment, Faculty of Biology and Animal Breeding, University of Agriculture in Lublin, Lublin, Poland
| | - Radzisław Kordek
- Department of Pathology, Faculty of Medicine, Medical University of Lodz, Łódź, Poland
| | - Leszek Tymczyna
- Department of Animal Hygiene and Environment, Faculty of Biology and Animal Breeding, University of Agriculture in Lublin, Lublin, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Łódź, Poland.
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180
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Patil MP, Palma J, Simeon NC, Jin X, Liu X, Ngabire D, Kim NH, Tarte NH, Kim GD. Sasa borealis leaf extract-mediated green synthesis of silver–silver chloride nanoparticles and their antibacterial and anticancer activities. NEW J CHEM 2017. [DOI: 10.1039/c6nj03454c] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ecofriendly procedure for silver–silver chloride nanoparticle synthesis with different reaction parameters tested.
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Affiliation(s)
- Maheshkumar Prakash Patil
- Department of Microbiology
- College of Natural Sciences
- Pukyong National University
- Nam-gu
- Republic of Korea
| | - Jaymee Palma
- Korea Science Academy of KAIST
- Busan
- Republic of Korea
| | | | - Xing Jin
- Korea Science Academy of KAIST
- Busan
- Republic of Korea
| | - Xiaolin Liu
- Korea Science Academy of KAIST
- Busan
- Republic of Korea
| | - Daniel Ngabire
- Department of Microbiology
- College of Natural Sciences
- Pukyong National University
- Nam-gu
- Republic of Korea
| | - Nan-Hee Kim
- Department of Microbiology
- College of Natural Sciences
- Pukyong National University
- Nam-gu
- Republic of Korea
| | | | - Gun-Do Kim
- Department of Microbiology
- College of Natural Sciences
- Pukyong National University
- Nam-gu
- Republic of Korea
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181
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Jamshidi M, Ghanati F. Taxanes content and cytotoxicity of hazel cells extract after elicitation with silver nanoparticles. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 110:178-184. [PMID: 27112786 DOI: 10.1016/j.plaphy.2016.04.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/13/2016] [Accepted: 04/13/2016] [Indexed: 06/05/2023]
Abstract
The toxicity of silver nanoparticles (AgNPs) has been attributed to the generation of Ag+ ions as well as production of ROS. The latter can elicit defensive response of plant cells in different ways e.g., enhancement of secondary metabolite productions. In the present study this hypothesis was evaluated by assessment of taxanes production by suspension-cultured hazel (Corylus avellana L.) cells after treatment with AgNPs. The cells were treated with different concentrations of AgNPs (0, 2.5, 5, and 10 ppm), in their logarithmic growth phase (d7) and were harvested after 1 weak. The growth of cells and their membrane integrity decreased but extracellular electro conductivity and total dissolved solids increase by AgNPs (probably due to loosening of cell membrane). Treatment of hazel cells with AgNPs (in particular of 5 ppm) rapidly and remarkably increased the yields of two major taxanes, i.e., Taxol and baccatin III; so that 24 h of the treatment their contents reached to 378% and 163% of the control, respectively. Increase of Taxanes was accompanied by the increase of total soluble phenols. The extracts of AgNPs-treated cells were able to inhibit the growth of cancerous HeLa cells and reduce their viability to 60% of the control. The results suggest the elicitation of suspension-cultured hazel cells with AgNPs as a procedure for rapid enhancement of anticancer taxanes biosynthesis by the cells.
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Affiliation(s)
- Mitra Jamshidi
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran
| | - Faezeh Ghanati
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), POB 14115-154, Tehran, Iran.
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182
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Yang Y, Bechtold T, Redl B, Caven B, Hu H. A novel silver-containing absorbent wound dressing based on spacer fabric. J Mater Chem B 2017; 5:6786-6793. [DOI: 10.1039/c7tb01286a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver-containing wound dressing based on spacer fabric promotes exuding wound healing through absorbing exudates, keeping moisture, killing bacteria and reducing silver contacting with wound.
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Affiliation(s)
- Yadie Yang
- Institute of Textiles and Clothing
- The Hong Kong Polytechnic University
- Hung Hom
- Hong Kong
| | - Thomas Bechtold
- Research Institute of Textile Chemistry and Textile Physics
- University of Innsbruck
- A-6850 Dornbirn
- Austria
| | - Bernhard Redl
- Division of Molecular Biology
- Innsbruck Medical University
- Innrain 80-82
- A-6020 Innsbruck
- Austria
| | - Barnaby Caven
- Research Institute of Textile Chemistry and Textile Physics
- University of Innsbruck
- A-6850 Dornbirn
- Austria
| | - Hong Hu
- Institute of Textiles and Clothing
- The Hong Kong Polytechnic University
- Hung Hom
- Hong Kong
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183
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Eco-friendly approach for nanoparticles synthesis and mechanism behind antibacterial activity of silver and anticancer activity of gold nanoparticles. Appl Microbiol Biotechnol 2016; 101:79-92. [DOI: 10.1007/s00253-016-8012-8] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/12/2016] [Accepted: 11/14/2016] [Indexed: 02/07/2023]
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184
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Bossert N, de Bruin D, Götz M, Bouwmeester D, Heinrich D. Fluorescence-tunable Ag-DNA biosensor with tailored cytotoxicity for live-cell applications. Sci Rep 2016; 6:37897. [PMID: 27901090 PMCID: PMC5129012 DOI: 10.1038/srep37897] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/01/2016] [Indexed: 01/08/2023] Open
Abstract
DNA-stabilized silver clusters (Ag-DNA) show excellent promise as a multi-functional nanoagent for molecular investigations in living cells. The unique properties of these fluorescent nanomaterials allow for intracellular optical sensors with tunable cytotoxicity based on simple modifications of the DNA sequences. Three Ag-DNA nanoagent designs are investigated, exhibiting optical responses to the intracellular environments and sensing-capability of ions, functional inside living cells. Their sequence-dependent fluorescence responses inside living cells include (1) a strong splitting of the fluorescence peak for a DNA hairpin construct, (2) an excitation and emission shift of up to 120 nm for a single-stranded DNA construct, and (3) a sequence robust in fluorescence properties. Additionally, the cytotoxicity of these Ag-DNA constructs is tunable, ranging from highly cytotoxic to biocompatible Ag-DNA, independent of their optical sensing capability. Thus, Ag-DNA represents a versatile live-cell nanoagent addressable towards anti-cancer, patient-specific and anti-bacterial applications.
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Affiliation(s)
- Nelli Bossert
- Leiden Institute of Physics, LION, Huygens-Kamerlingh Onnes Laboratory, Leiden University, The Netherlands
| | - Donny de Bruin
- Leiden Institute of Physics, LION, Huygens-Kamerlingh Onnes Laboratory, Leiden University, The Netherlands
| | - Maria Götz
- Fraunhofer-Institut for Silicate Research ISC, Würzburg, Germany
- Fakultaet fuer Chemie und Pharmazie, Julius-Maximilians-Universitaet Würzburg, Germany
| | - Dirk Bouwmeester
- Leiden Institute of Physics, LION, Huygens-Kamerlingh Onnes Laboratory, Leiden University, The Netherlands
- Physics Department and California Nanosystems Institute UCSB, Santa Barbara, USA
| | - Doris Heinrich
- Leiden Institute of Physics, LION, Huygens-Kamerlingh Onnes Laboratory, Leiden University, The Netherlands
- Fraunhofer-Institut for Silicate Research ISC, Würzburg, Germany
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185
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Dakal TC, Kumar A, Majumdar RS, Yadav V. Mechanistic Basis of Antimicrobial Actions of Silver Nanoparticles. Front Microbiol 2016; 7:1831. [PMID: 27899918 PMCID: PMC5110546 DOI: 10.3389/fmicb.2016.01831] [Citation(s) in RCA: 746] [Impact Index Per Article: 93.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 11/01/2016] [Indexed: 01/19/2023] Open
Abstract
Multidrug resistance of the pathogenic microorganisms to the antimicrobial drugs has become a major impediment toward successful diagnosis and management of infectious diseases. Recent advancements in nanotechnology-based medicines have opened new horizons for combating multidrug resistance in microorganisms. In particular, the use of silver nanoparticles (AgNPs) as a potent antibacterial agent has received much attention. The most critical physico-chemical parameters that affect the antimicrobial potential of AgNPs include size, shape, surface charge, concentration and colloidal state. AgNPs exhibits their antimicrobial potential through multifaceted mechanisms. AgNPs adhesion to microbial cells, penetration inside the cells, ROS and free radical generation, and modulation of microbial signal transduction pathways have been recognized as the most prominent modes of antimicrobial action. On the other side, AgNPs exposure to human cells induces cytotoxicity, genotoxicity, and inflammatory response in human cells in a cell-type dependent manner. This has raised concerns regarding use of AgNPs in therapeutics and drug delivery. We have summarized the emerging endeavors that address current challenges in relation to safe use of AgNPs in therapeutics and drug delivery platforms. Based on research done so far, we believe that AgNPs can be engineered so as to increase their efficacy, stability, specificity, biosafety and biocompatibility. In this regard, three perspectives research directions have been suggested that include (1) synthesizing AgNPs with controlled physico-chemical properties, (2) examining microbial development of resistance toward AgNPs, and (3) ascertaining the susceptibility of cytoxicity, genotoxicity, and inflammatory response to human cells upon AgNPs exposure.
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Affiliation(s)
| | - Anu Kumar
- Department of Biotechnology, School of Engineering and Technology, Sharda UniversityGreater Noida, India
| | - Rita S. Majumdar
- Department of Microbiology, Central University of HaryanaMahendragarh, India
| | - Vinod Yadav
- Department of Biotechnology, School of Engineering and Technology, Sharda UniversityGreater Noida, India
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186
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Li J, Li Q, Ma X, Tian B, Li T, Yu J, Dai S, Weng Y, Hua Y. Biosynthesis of gold nanoparticles by the extreme bacterium Deinococcus radiodurans and an evaluation of their antibacterial properties. Int J Nanomedicine 2016; 11:5931-5944. [PMID: 27877039 PMCID: PMC5108609 DOI: 10.2147/ijn.s119618] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Deinococcus radiodurans is an extreme bacterium known for its high resistance to stresses including radiation and oxidants. The ability of D. radiodurans to reduce Au(III) and biosynthesize gold nanoparticles (AuNPs) was investigated in aqueous solution by ultraviolet and visible (UV/Vis) absorption spectroscopy, electron microscopy, X-ray diffraction (XRD), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). D. radiodurans efficiently synthesized AuNPs from 1 mM Au(III) solution in 8 h. The AuNPs were of spherical, triangular and irregular shapes with an average size of 43.75 nm and a polydispersity index of 0.23 as measured by DLS. AuNPs were distributed in the cell envelope, across the cytosol and in the extracellular space. XRD analysis confirmed the crystallite nature of the AuNPs from the cell supernatant. Data from the FTIR and XPS showed that upon binding to proteins or compounds through interactions with carboxyl, amine, phospho and hydroxyl groups, Au(III) may be reduced to Au(I), and further reduced to Au(0) with the capping groups to stabilize the AuNPs. Biosynthesis of AuNPs was optimized with respect to the initial concentration of gold salt, bacterial growth period, solution pH and temperature. The purified AuNPs exhibited significant antibacterial activity against both Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria by damaging their cytoplasmic membrane. Therefore, the extreme bacterium D. radiodurans can be used as a novel bacterial candidate for efficient biosynthesis of AuNPs, which exhibited potential in biomedical application as an antibacterial agent.
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Affiliation(s)
- Jiulong Li
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
| | - Qinghao Li
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
| | - Xiaoqiong Ma
- Central Laboratory, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Bing Tian
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
| | - Tao Li
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
| | - Jiangliu Yu
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
| | - Shang Dai
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
| | - Yulan Weng
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
| | - Yuejin Hua
- Key Laboratory for Nuclear-Agricultural Sciences of Chinese Ministry of Agriculture and Zhejiang Province, Institute of Nuclear-Agricultural Sciences, Zhejiang University
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187
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Antioxidant and catalytic applications of silver nanoparticles using Dimocarpus longan seed extract as a reducing and stabilizing agent. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 164:344-351. [DOI: 10.1016/j.jphotobiol.2016.09.042] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 08/24/2016] [Accepted: 09/30/2016] [Indexed: 11/21/2022]
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188
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Functionalization of nanostructures for antibiotic improvement: an interdisciplinary approach. Ther Deliv 2016; 7:761-771. [PMID: 27790945 DOI: 10.4155/tde-2016-0047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The resistance of infectious bacteria to current antibiotics is a worldwide problem caused, partially, by the overuse of antimicrobials. The use of nanotechnology as an innovative tool against bacterial infections provides a range of methodologies to redesign old antibiotics for novel and remarkable new strategies. Thus, functionalized antibiotics present structures with improved bioavailability, low toxicity and specificity to bacterial membrane. In this context, this review will describe the use of nanotechnology as an innovative tool to functionalize antibiotics. In addition, the importance of the interdisciplinary context to understand, develop and apply these systems as an innovative tool for drug development and improvement is discussed.
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189
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Lee TH, Jang BS, Jung MK, Pack CG, Choi JH, Park DH. Fabrication of a silver particle-integrated silicone polymer-covered metal stent against sludge and biofilm formation and stent-induced tissue inflammation. Sci Rep 2016; 6:35446. [PMID: 27739486 PMCID: PMC5064322 DOI: 10.1038/srep35446] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 09/29/2016] [Indexed: 12/19/2022] Open
Abstract
To reduce tissue or tumor ingrowth, covered self-expandable metal stents (SEMSs) have been developed. The effectiveness of covered SEMSs may be attenuated by sludge or stone formation or by stent clogging due to the formation of biofilm on the covering membrane. In this study, we tested the hypothesis that a silicone membrane containing silver particles (Ag-P) would prevent sludge and biofilm formation on the covered SEMS. In vitro, the Ag-P-integrated silicone polymer-covered membrane exhibited sustained antibacterial activity, and there was no definite release of silver ions from the Ag-P-integrated silicone polymer membrane at any time point. Using a porcine stent model, in vivo analysis demonstrated that the Ag-P-integrated silicone polymer-covered SEMS reduced the thickness of the biofilm and the quantity of sludge formed, compared with a conventional silicone-covered SEMS. In vivo, the release of silver ions from an Ag-P-integrated silicone polymer-covered SEMS was not detected in porcine serum. The Ag-P-integrated silicone polymer-covered SEMS also resulted in significantly less stent-related bile duct and subepithelium tissue inflammation than a conventional silicone polymer-covered SEMS. Therefore, the Ag-P-integrated silicone polymer-covered SEMS reduced sludge and biofilm formation and stent-induced pathological changes in tissue. This novel SEMS may prolong the stent patency in clinical application.
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Affiliation(s)
- Tae Hoon Lee
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, South Korea
| | - Bong Seok Jang
- R&D Institute of Intervention, M. I. Tech Co., Ltd., 174 Habuk 2gil, Jinwi-myeon, Pyeongtaek, Gyeonggi-do, 451-864, South Korea
| | - Min Kyo Jung
- Department of Convergence Medicine, University of Ulsan College of Medicine &Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea.,School of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Chan Gi Pack
- Department of Convergence Medicine, University of Ulsan College of Medicine &Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Jun-Ho Choi
- Department of Internal Medicine, Dankook University Hospital, Dankook University College of Medicine, Cheonan, South Korea
| | - Do Hyun Park
- Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43 gil, Songpa-gu, Seoul 05505, South Korea
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190
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Zazouli MA, Yousefi M, Kor Y, Roohafzaee M. Inactivation of Escherichia coli in Water by Combined Process of Silver Nanoparticle and Ultraviolet Radiation. HEALTH SCOPE 2016. [DOI: 10.17795/jhealthscope-39102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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191
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Inactivation of Escherichia coli in Water by Combined Process of Silver Nanoparticle and Ultraviolet Radiation. HEALTH SCOPE 2016. [DOI: 10.5812/jhealthscope.39102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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192
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Abstract
The most prominent character of a new type of antibacterial urological catheters is the zebra-stripe pattern of a silver film, which is plated electroless on their interior wall and capped by a very thin semipermeable layer of parylene. This design effectively controls the release rate of Ag(+) ions in artificial urine, which has been measured as function of time with optical emission spectroscopy. By evaluating the minimum inhibitory concentration against certain strains of bacteria with solutions of AgNO3 of known concentration with the method of optical density and applying this analysis to the silver-eluting catheters, it was shown that this moderation prolongs the period of their application significantly. But to act as antibacterial agent in chlorine-containing solutions, as in urine, the presence of urea is required to avoid precipitation of AgCl and to meet or even exceed the minimum inhibitory concentration of Ag(+). The quality of the silver depot layer was further determined by the deposition rate and its morphology, which revealed that the film consisted of grains with a mean size of 150 nm.
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193
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Deng H, McShan D, Zhang Y, Sinha SS, Arslan Z, Ray PC, Yu H. Mechanistic Study of the Synergistic Antibacterial Activity of Combined Silver Nanoparticles and Common Antibiotics. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:8840-8. [PMID: 27390928 PMCID: PMC5300770 DOI: 10.1021/acs.est.6b00998] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A combination of silver nanoparticles (AgNPs) and an antibiotic can synergistically inhibit bacterial growth, especially against the drug-resistant bacteria Salmonella typhimurium. However, the mechanism for the synergistic activity is not known. This study chooses four classes of antibiotics, β-lactam (ampicillin and penicillin), quinolone (enoxacin), aminoglycoside (kanamycin and neomycin), and polykeptide (tetracycline) to explore their synergistic mechanism when combined with AgNPs against the multidrug-resistant bacterium Salmonella typhimurium DT 104. Enoxacin, kanamycin, neomycin, and tetracycline show synergistic growth inhibition against the Salmonella bacteria when combined with AgNPs, while ampicillin and penicillin do not. UV-vis and Raman spectroscopy studies reveal that all these four synergistic antibiotics can form complexes with AgNPs, while ampicillin and penicillin do not. The presence of tetracycline enhances the binding of Ag to Salmonella by 21% and Ag(+) release by 26% in comparison to that without tetracycline, while the presence of penicillin does not enhance the binding of Ag or Ag(+) release. This means that AgNPs first form a complex with tetracycline. The tetracycline-AgNPs complex interacts more strongly with the Salmonella cells and causes more Ag(+) release, thus creating a temporal high concentration of Ag(+) near the bacteria cell wall that leads to growth inhibition of the bacteria. These findings agree with the recent findings that Ag(+) release from AgNPs is the agent causing toxicity.
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Affiliation(s)
- Hua Deng
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Danielle McShan
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Ying Zhang
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Sudarson S. Sinha
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Zikri Arslan
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Paresh C. Ray
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Hongtao Yu
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
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194
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Singh BN, Prateeksha, Upreti DK, Singh BR, Defoirdt T, Gupta VK, De Souza AO, Singh HB, Barreira JCM, Ferreira ICFR, Vahabi K. Bactericidal, quorum quenching and anti-biofilm nanofactories: a new niche for nanotechnologists. Crit Rev Biotechnol 2016; 37:525-540. [PMID: 27684212 DOI: 10.1080/07388551.2016.1199010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Despite several conventional potent antibacterial therapies, bacterial infections pose a significant threat to human health because they are emerging as the leading cause of death worldwide. Due to the development of antibiotic resistance in bacteria, there is a pressing demand to discover novel approaches for developing more effective therapies to treat multidrug-resistant bacterial strains and biofilm-associated infections. Therefore, attention has been especially devoted to a new and emerging branch of science "nanotechnology" to design non-conventional antimicrobial chemotherapies. A range of nanomaterials and nano-sized carriers for conventional antimicrobial agents have fully justified their potential to combat bacterial diseases by reducing cell viability, by attenuating quorum sensing, and by inhibiting/or eradicating biofilms. This communication summarizes emerging nano-antimicrobial therapies in treating bacterial infections, particularly using antibacterial, quorum quenching, and anti-biofilm nanomaterials as new approaches to tackle the current challenges in combating infectious diseases.
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Affiliation(s)
- Brahma N Singh
- a Pharmacognosy & Ethnopharmacology Division , CSIR-National Botanical Research Institute , Lucknow , India
| | - Prateeksha
- a Pharmacognosy & Ethnopharmacology Division , CSIR-National Botanical Research Institute , Lucknow , India
| | - Dalip K Upreti
- b Lichenology laboratory , Plant Biodiversity and Conservation Biology Division, CSIR-National Botanical Research Institute , Lucknow , Uttar Pradesh , India
| | - Braj Raj Singh
- c TERI-Deakin Nanobiotechnology Centre, TERI Gram, The Energy and Resources Institute, Gurgaon , Haryana , India.,d Centre of Excellence in Materials Science (Nanomaterials), Z. H. College of Engineering and Technology , Aligarh Muslim University, Aligarh , Uttar Pradesh , India
| | - Tom Defoirdt
- d Centre of Excellence in Materials Science (Nanomaterials), Z. H. College of Engineering and Technology , Aligarh Muslim University, Aligarh , Uttar Pradesh , India.,e Laboratory of Aquaculture & Artemia Reference Center , Ghent University , Gent , Belgium
| | - Vijai K Gupta
- f Molecular Glyco-biotechnology Group, Discipline of Biochemistry , School of Natural Sciences, National University of Ireland Galway , Galway , Ireland
| | | | - Harikesh Bahadur Singh
- h Mycology & Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University , Varanasi , Uttar Pardesh , India
| | - João C M Barreira
- i Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança , Campus de Santa Apolónia , Bragança , Portugal
| | - Isabel C F R Ferreira
- i Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança , Campus de Santa Apolónia , Bragança , Portugal
| | - Khabat Vahabi
- j Biologisch-Pharmazeutische Fakultät , Institut für Allgemeine Botanik und Pflanzenphysiologie, Friedrich-Schiller Universität Jena , Jena , Germany
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195
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Kedziora A, Korzekwa K, Strek W, Pawlak A, Doroszkiewicz W, Bugla-Ploskonska G. Silver Nanoforms as a Therapeutic Agent for Killing Escherichia coli and Certain ESKAPE Pathogens. Curr Microbiol 2016; 73:139-47. [PMID: 27086305 PMCID: PMC4899487 DOI: 10.1007/s00284-016-1034-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/25/2016] [Indexed: 11/17/2022]
Abstract
The scope of this study included the preparation of silver nanoforms with high antimicrobial efficacy, low cost, and ease of application. The term 'silver nanoforms' refers to silver located on the amorphous or crystalline titanium dioxide (TiO2). Silver nanoforms may be used as an alternative to antibiotics in killing bacteria. Pure and silver-incorporated titanium (used as a carrier) was prepared using the sol-gel-modified method. Physical and chemical properties of the samples were described, and the antibacterial activity was indicated using the following strains of bacteria: Staphylococcus aureus, Klebsiella pneumoniae (ESKAPE pathogens), and Escherichia coli. The results have shown that the antibacterial activity of silver nanoforms with amorphous TiO2 is much better than that in the samples based on anatase (crystalline TiO2). The sensitivity of the tested bacteria to silver nanoforms depends on physical and chemical properties of the nanoforms and individual characteristics of the bacteria. For the first time, significant participation of amorphous TiO2 in antibacterial compounds has been described through this study.
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Affiliation(s)
- A Kedziora
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego 63-77, 51-148, Wrocław, Poland.
| | - K Korzekwa
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego 63-77, 51-148, Wrocław, Poland
| | - W Strek
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wrocław, Poland
| | - A Pawlak
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego 63-77, 51-148, Wrocław, Poland
| | - W Doroszkiewicz
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego 63-77, 51-148, Wrocław, Poland
| | - G Bugla-Ploskonska
- Department of Microbiology, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego 63-77, 51-148, Wrocław, Poland
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196
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Gorbunova MN, Krainova GF, Kisel’kov DM, Nebogatikov VO. Copolymers of betulin esters and silver nanocomposites based on them. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s1070427216030149] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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197
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Mallevre F, Fernandes TF, Aspray TJ. Pseudomonas putida biofilm dynamics following a single pulse of silver nanoparticles. CHEMOSPHERE 2016; 153:356-364. [PMID: 27031799 DOI: 10.1016/j.chemosphere.2016.03.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 01/22/2016] [Accepted: 03/14/2016] [Indexed: 06/05/2023]
Abstract
Pseudomonas putida mono-species biofilms were exposed to silver nanoparticles (Ag NPs) in artificial wastewater (AW) under hydrodynamic conditions. Specifically, 48 h old biofilms received a single pulse of Ag NPs at 0, 0.01, 0.1, 1, 10 and 100 mg L(-1) for 24 h in confocal laser scanning microscopy (CLSM) compatible flow-cells. The biofilm dynamics (in terms of morphology, viability and activity) were characterised at 48, 72 and 96 h. Consistent patterns were found across flow-cells and experiments at 48 h. Dose dependent impacts of NPs were then shown at 72 h on biofilm morphology (e.g. biomass, surface area and roughness) from 0.01 mg L(-1). The microbial viability was not altered below 10 mg L(-1) Ag NPs. The activity (based on the d-glucose utilisation) was impacted by concentrations of Ag NPs equal and superior to 10 mg L(-1). Partial recovery of morphology, viability and activity were finally observed at 96 h. Comparatively, exposure to Ag salt resulted in ca. one order of magnitude higher toxicity when compared to Ag NPs. Consequently, the use of a continuous culture system and incorporation of a recovery stage extends the value of biofilm assays beyond the standard acute toxicity assessment.
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Affiliation(s)
- Florian Mallevre
- School of Life Sciences, NanoSafety Research Group, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK
| | - Teresa F Fernandes
- School of Life Sciences, NanoSafety Research Group, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK
| | - Thomas J Aspray
- School of Life Sciences, NanoSafety Research Group, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK.
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198
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Zhang L, He Y, Goswami N, Xie J, Zhang B, Tao X. Uptake and effect of highly fluorescent silver nanoclusters on Scenedesmus obliquus. CHEMOSPHERE 2016; 153:322-331. [PMID: 27023120 DOI: 10.1016/j.chemosphere.2016.03.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/02/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
The release of silver nanoparticles (Ag NPs) in aquatic environment has caused wide public concern about their effects on living organisms (e.g., algae). However, how these small NPs exert cytotoxicity in the living organisms has always been under heated debate. In this study, the uptake and toxicity effects of strongly red-emitting fluorescent silver nanoclusters (r-Ag NCs) exposed to the green algae Scenedesmus obliquus was investigated. Upon exposure to pure r-Ag NCs and r-Ag NCs containing l-cysteine, the algae growth inhibition test showed that Ag(+) ions released from r-Ag NCs played an important role in the toxicity of r-Ag NCs along with the toxicity of intact r-Ag NCs. Furthermore, no signals of intracellular reactive oxygen species (ROS) were observed indicating that r-Ag NCs or released Ag(+) ions - mediated growth inhibition of algae cells was independent of ROS production. Transmission electron microscopy (TEM) and laser scanning confocal microscopy (LSCM) were employed to study cellular uptake and cytotoxicity. Furthermore, analysis of differential expressed gene demonstrated that r-Ag NCs as well as the released Ag(+) ions can simultaneously exist inside the algae cells, and inhibit the transcriptomic process of genes by their "joint-toxicity" mechanism. Taken together, our study provides a new insight into the molecular mechanisms of r-Ag NCs and Ag(+) ions exposure to the aquatic organism and can be applied to early diagnosis of ecologic risk mediated by others metal-based NPs.
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Affiliation(s)
- Li Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Yiliang He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai, 200240, China.
| | - Nirmal Goswami
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, #03-18, 117585, Singapore
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, #03-18, 117585, Singapore
| | - Bo Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Xianji Tao
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
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199
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Cai Q, Gao Y, Gao T, Lan S, Simalou O, Zhou X, Zhang Y, Harnoode C, Gao G, Dong A. Insight into Biological Effects of Zinc Oxide Nanoflowers on Bacteria: Why Morphology Matters. ACS APPLIED MATERIALS & INTERFACES 2016; 8:10109-10120. [PMID: 27042940 DOI: 10.1021/acsami.5b11573] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Zinc oxides have gained exciting achievements in antimicrobial fields because of their advantageous properties, whereas their biological effects on bacteria are currently underexplored. In this study, biological effects of flower-shaped nano zinc oxides on bacteria were systematically investigated. Zinc oxide nanoflowers with controllable morphologies (viz., rod flowers, fusiform flowers, and petal flowers) were synthesized by modulating merely base type and concentration using the hydrothermal process. Their antibacterial power is in an order of petal flowers > fusiform flowers > rod flowers because of their differences in microscopic parameters such as specific surface area, pore size, and Zn-polar plane, etc. More importantly, the role of morphology in influencing biological effect on bacteria was examined, focusing on the morphology-induced effect on integrality of cell wall, permeability of cell membrane, DNA cleavage, etc. As for cytotoxicity, all petal flowers, fusiform flowers, and rod flowers show trivial cytotoxicity to the Hela cells. This work provides a guide for enhancing biological effect of the biocides on pathogenic bacteria by the morphological modulation.
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Affiliation(s)
- Qian Cai
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Yangyang Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Tianyi Gao
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Shi Lan
- College of Science, Inner Mongolia Agricultural University , Hohhot 010018, People's Republic of China
| | - Oudjaniyobi Simalou
- Département de Chimie, Faculté Des Sciences (FDS), Université de Lomé (UL) , Lome BP 1515, Togo
| | - Xinyue Zhou
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Yanling Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Chokto Harnoode
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
| | - Ge Gao
- College of Chemistry, Jilin University , Changchun 130021, People's Republic of China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering, Inner Mongolia University , Hohhot 010021, People's Republic of China
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200
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Cheng G, Dai M, Ahmed S, Hao H, Wang X, Yuan Z. Antimicrobial Drugs in Fighting against Antimicrobial Resistance. Front Microbiol 2016; 7:470. [PMID: 27092125 PMCID: PMC4824775 DOI: 10.3389/fmicb.2016.00470] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/21/2016] [Indexed: 01/18/2023] Open
Abstract
The outbreak of antimicrobial resistance, together with the lack of newly developed antimicrobial drugs, represents an alarming signal for both human and animal healthcare worldwide. Selection of rational dosage regimens for traditional antimicrobial drugs based on pharmacokinetic/pharmacodynamic principles as well as development of novel antimicrobials targeting new bacterial targets or resistance mechanisms are key approaches in tackling AMR. In addition to the cellular level resistance (i.e., mutation and horizontal gene transfer of resistance determinants), the community level resistance (i.e., bilofilms and persisters) is also an issue causing antimicrobial therapy difficulties. Therefore, anti-resistance and antibiofilm strategies have currently become research hotspot to combat antimicrobial resistance. Although metallic nanoparticles can both kill bacteria and inhibit biofilm formation, the toxicity is still a big challenge for their clinical applications. In conclusion, rational use of the existing antimicrobials and combinational use of new strategies fighting against antimicrobial resistance are powerful warranties to preserve potent antimicrobial drugs for both humans and animals.
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Affiliation(s)
- Guyue Cheng
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Menghong Dai
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Saeed Ahmed
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and Ministry of Agriculture Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University Wuhan, China
| | - Haihong Hao
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Xu Wang
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Zonghui Yuan
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural UniversityWuhan, China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and Ministry of Agriculture Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural UniversityWuhan, China
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