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Nanoparticules d'argent en tant que antimicrobien

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Environmental Pollution Volume 293, 15 January 2022, The impact of silver nanoparticles on microbial communities and antibiotic resistance determinants in the environment. Highlights The widespread use of nanosilver has led to its accumulation in the environment.

Environmental Pollution Volume 293, 15 January 2022, The impact of silver nanoparticles on microbial communities and antibiotic resistance determinants in the environment

Nanosilver and the transformed products are toxic to environmental microbes. Nanosilver can affect nitrogen cycle and organic matter decomposition processes. Microbial and gene abundance shifts are observed in various environmental settings. Nanosilver is indicated to increase environmental antibiotic resistance gene pools. Abstract. Saudi Journal of Biological Sciences Available online 15 November 2021 Antimicrobial activity of chemically and biologically synthesized silver nanoparticles against some fish pathogens. Abstract Pathogens isolated from fish appear to possess considerable antimicrobial resistance and represent a problem for the economy and public health.

Saudi Journal of Biological Sciences Available online 15 November 2021 Antimicrobial activity of chemically and biologically synthesized silver nanoparticles against some fish pathogens

Natural antimicrobial substitutes to traditional antibiotics represent an essential tool in the fight against antibiotic resistance. Nanotechnology has shown considerable potential in different research fields, and the antimicrobial properties of silver nanoparticles are known. Silver has been used for medical purposes since ancient times because of its bactericidal properties, and the highly reactive surfaces of silver nanoparticles (AgNPs) indicate that they might have a function in antimicrobial applications.

This work aimed to study the antimicrobial properties of biologically produced AgNPs from Origanum vulgare leaves compared to chemically produced AgNPs. ANTIBIOTICS 13/07/21 Biosynthesis of Silver Nanoparticles Mediated by Entomopathogenic Fungi: Antimicrobial Resistance, Nanopesticides, and Toxicity. All articles published by MDPI are made immediately available worldwide under an open access license.

ANTIBIOTICS 13/07/21 Biosynthesis of Silver Nanoparticles Mediated by Entomopathogenic Fungi: Antimicrobial Resistance, Nanopesticides, and Toxicity

No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. Feature Papers represent the most advanced research with significant potential for high impact in the field. Feature Papers are submitted upon individual invitation or recommendation by the scientific editors and undergo peer review prior to publication. The Feature Paper can be either an original research article, a substantial novel research study that often involves several techniques or approaches, or a comprehensive review paper with concise and precise updates on the latest progress in the field that systematically reviews the most exciting advances in scientific literature.

Jundishapur Journal of Microbiology. 2014 January; 7(1): Antibacterial Effect of Silver Nanoparticles Against Four Foodborne Pathogens. PEKING UNIVERSITY - 2013 - Interactions of nanosilver with Escherichia coli cells in planktonic and biofilm cultures. INSA DE ROUEN 05/12/11 Thèse en ligne : Elaboration de surfaces biocides contenant des nanoparticules d'argent. Abstract : Two environment and human-friendly processes were developed to synthesize polyurethane-silver (PU-Ag) nanocomposites having biocide surfaces able preventing the microbial colonization.The first one, called ex-situ process, consists in incorporating a silver nanoparticles aqueous dispersion during the synthesis process of polyurethane, which is itself carried out in aqueous dispersion.

INSA DE ROUEN 05/12/11 Thèse en ligne : Elaboration de surfaces biocides contenant des nanoparticules d'argent

In this case, the chemical reduction of silver ions under microwaves and in the presence of polyethyleneglycol was particularly developed with the aim to chemically incorporate the PEG in the PUchains. Bioinorganic Chemistry and Applications 24/01/16 Nanosilver Biocidal Properties and Their Application in Disinfection of Hatchers in Poultry Processing Plants. The aim of this study was to use aqueous suspensions of silver nanoparticles with a wide spectrum of particle sizes, variable morphology, high stability, and appropriate physicochemical properties to examine their bactericidal and fungicidal properties against microorganisms present in poultry processing plants.

Bioinorganic Chemistry and Applications 24/01/16 Nanosilver Biocidal Properties and Their Application in Disinfection of Hatchers in Poultry Processing Plants

At the same time, the particles were tested for preventing the production of odorogenous pollutants during incubation and thereby reducing the emission of harmful gases from such types of facilities. The results show that the use of nanosilver preparations in order to disinfect eggs and hatchers reduced microbiological contamination. The bactericidal and fungicidal efficacy of the applied preparation was comparable to UV radiation and its effectiveness increasing during the incubation. Good results were achieved in terms of the level of organic gaseous contaminants, which decreased by 86% after the application of the nanosilver preparation. 1. 2. 2.1. 2.2. 2.2.1. 2.2.2. 2.3. 3. PARLEMENT EUROPEEN - Réponse à question E-003977-18 Silver nanoparticles replacing antibiotics in chicken-farming. The abuse of antibiotics in intensive farming and the increasingly frequent warnings about antimicrobial resistance have prompted researchers from all over the world to look for alternative solutions.

PARLEMENT EUROPEEN - Réponse à question E-003977-18 Silver nanoparticles replacing antibiotics in chicken-farming

One of the options being proposed is silver nanoparticles, although there are as yet no studies on their safety. That was why the Venezie Experimental Zooprophylactic Institute (IZSV) sought to understand whether they might entail risks to consumers; its study has been published in the Journal of Agricultural and Food Chemistry. The specific question that the IZSV researchers attempted to answer was whether silver nanoparticles used in chicken-farming could accumulate in meat and eggs, and hence end up on consumers’ dining-tables.

BLOG ALBERT AMGAR 21/06/10 Argent : pouvoir de séduction ou antibactérien ? L’argent fait-il le bonheur ou bien qu’en est-il du pouvoir antibactérien de l’argent !

BLOG ALBERT AMGAR 21/06/10 Argent : pouvoir de séduction ou antibactérien ?

Il s’agit en l’occurrence du pouvoir des ions d’argent ou des nanoparticules d’argent dans des produits du quotidien revendiquant un pouvoir antibactérien. Universidad Nacional de Córdoba, Argentina - 2011 - Synthesis and characterization of complex silver nanostructures presenting antibacterial properties. Journal of Nanomaterials Volume 2013 (2013), Transparent Nanocrystallite Silver for Antibacterial Coating. IEEEXPLORE - AOUT 2008 - A Novel Anti Nano-Silver Particle Bacteria. Introduction Nanotechnology was expected to have a revolutionary impact on life science.

IEEEXPLORE - AOUT 2008 - A Novel Anti Nano-Silver Particle Bacteria

A variety of material production processes occur at nanometer length scales. Such as, textile silver nanoparticles antimicrobial activity (9), gold nanoparticles super catalase activity and most nanoparticles offer some unique advantages as sensing, delivery, and image enhancement agents in medicine (6, 7, 8). Due to different fabrication methods, such many varieties of nanoparticles were available: polymeric nanoparticles, dendrimers, metal nanoparticles, quantum dots, liposomes, micelles and other types of nano-assemblies (1, 2, 5).

Most of these nanostructures could be applied onto life science application, especially in medical disease diagnosis and therapy (4, 6). FREE PATENT - LATEX ARTICLES CONTAINING NANO-SILVER AND THE PREPARATION THEREOF. This invention involves a type of latex product and the preparation method thereof.

FREE PATENT - LATEX ARTICLES CONTAINING NANO-SILVER AND THE PREPARATION THEREOF

AZONANO 16/08/06 Silver Nanoparticles – How They Are Providing Environmentally Friendly Antibacterial Properties In Consumer Goods. The antibacterial property of silver has been known for thousands of years with the ancient Greeks cooking from silver pots and the old adage ‘born with a silver spoon in his mouth’ referring to more than just wealth.

AZONANO 16/08/06 Silver Nanoparticles – How They Are Providing Environmentally Friendly Antibacterial Properties In Consumer Goods

Eating with a silver spoon was known to be more hygienic. Manufacturing entire objects from pure silver metal or coating them with silver is prohibitively expensive for consumer items but research has found that impregnating other materials with silver nanoparticles is a practical way to exploit the germ fighting properties of silver. How Silver Nanoparticles Work The extremely small size of nanoparticles means they exhibit enhanced or different properties when compared with the bulk material. The extremely small size of nanoparticles results in the particles having a large surface area relative to their volume.

SCIENCE DAILY 30/04/08 Silver Nanoparticles May Be Killing Beneficial Bacteria In Wastewater Treatment. Too much of a good thing could be harmful to the environment. For years, scientists have known about silver's ability to kill harmful bacteria and, recently, have used this knowledge to create consumer products containing silver nanoparticles. Projet de recherche collective - JUIN 2008 - Nano-argent - textile antimicrobien durable. INFORMATION HOSPITALIERE 02/01/06 Cancer - les nanoparticules d'or pour des applications biomédicales. Publicité Les nanoparticules d'or sont activement étudiées pour leurs applications biomédicales qui incluent la détection d'agents infectieux, l'amélioration de la radiothérapie, les traitements thermiques et la vectorisation des médicaments.

Une équipe du M.D Anderson Medical Center à Houston étudie l'association de nanoparticules d'or avec des virus en vue d'applications thérapeutiques. Le but est de créer un réseau moléculaire bioactif constitué de bactériophages (virus qui infectent seulement les bactéries) assemblés aux nanoparticules d'or. Les phages génétiquement modifiés portent sur leur membrane des peptides qui se lient spécifiquement aux molécules cibles. USINE NOUVELLE 16/10/06 Des nanoparticules d'argent contre les microbes. Process Biochemistry, In Press, Accepted Manuscript, Available online 25 March 2010 Tansy fruit mediated greener synthesis of silver and gold nanoparticles. A Laboratory of Applied Environmental Chemistry, Department of Environmental Sciences, University of Eastern Finland, FI-50100, Mikkeli, Finlandb University of Jyväskylä, Department of Chemistry, P.O.

Box 35, FI-40014 JY, Finland Received 29 November 2009, Revised 7 March 2010, Accepted 16 March 2010, Available online 25 March 2010. LES NOUVELLES 23/03/10 Nanomatériaux : principe de précaution contre chaussettes anti-odeurs. Le principe de précaution doit s'appliquer aux nanotechnologies. C'est l'avis que vient de rendre l'Afsset (Agence française de sécurité sanitaire de l'environnement et du travail). Alors que les nanomatériaux, ces particules aux propriétés innovantes, ont envahi des centaines de produits de consommation quotidiens, l'Afsset met en garde contre les risques pour la santé et pour l’environnement que pourraient impliquer ces matériaux, encore trop mal étudiés. L'étude de l’Afsset publiée mardi 24 mars, vient mettre son grain de sel dans le débat sur les nanotechnologies.

Le débat public sur le même thème, qui s'est clôturé tout juste un mois avant, et dont les conclusions sont… La suite de cet article est accessible sur abonnement. Je suis abonné·e,je me connecte. Trends Biotechnol. 2010 Apr;28(4):207-13. Epub 2010 Jan 12. Functionalised gold nanoparticles for controlling pathogenic bacteria. OIE - REV.SCI. TECH. OFF. INT. EPIZ. - 2018 - Antibacterial activity of silver nanoparticles against field and reference strains of Mycobacterium tuberculosis, Mycobacterium bovis and multiple-drug-resistant tuberculosis strains.