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Relevant bibliographies by topics / Silver

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Academic literature on the topic 'Silver'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 June 2025

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Journal articles on the topic "Silver"

1

Gupta, Ajay. "Silveron Gel (Nano Silver Formulation): A Powerful Antimicrobial for the Future." New Indian Journal of surgery 12, no. 4 (December 15, 2021): 209–13. http://dx.doi.org/10.21088/nijs.0976.4747.12421.2.

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Introduction: Nano silver itself is not new. It has been used for various applications in consumer and commercial products over the past century without showing adverse effects on patients. Nano-silver dispersions were used as medical products already in the 19th century. Additionally, the concept of Nano-silver being used as a topical antibacterial dates back to the days of Sushrut in the 6th century where finely powdered Silver was used as a topical antibacterial/antiseptic after surgery. Material and Method: Silver ions and the compounds made like nanosilver exhibit a broad antimicrobial profile against bacteria, fungi and virus and also have low toxicity towards animal cells. Various studies have also demonstrated definitive antibacterial property of nanosilver against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, C. albicans, V. Parahaemolyticus, S. enterica, B. anthracis, B. Cereus, Bacillus subtilis, Salmonella entrica and Pseudomonas aeruginosa. Result: Nano silver particles have ability to alter the expression of matrix metallo-proteinases (proteolytic enzymes that are important in various inflammatory and repair processes), suppress the expression of tumor necrosis factor (TNF-α), interleukin (IL)-12, and IL-1b, and induce apoptosis of inflammatory cells. Therefore, nano silver gel also displays an anti-inflammatory action. Conclusion: In conclusion, Silveron gel due to its nano silver particles and unique formulation has the power to protect, penetrate, and heal in cuts, wounds, burns, diabetic foot ulcer, and surgical dressings. Keywords: Silveron Gel; Antimicrobial; Nano Silver.

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Dash, Upendra Nath, Banka Behari Das, Uttam Kumar Biswal, and Tapodhan Panda. "Thermodynamics of silver-silver bromate, silver-silver iodate, silver-silver sulphate, silver-silver chromate and silver-silver dichromate electrodes i." Thermochimica Acta 91 (September 1985): 329–36. http://dx.doi.org/10.1016/0040-6031(85)85225-4.

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Hatch, Laurence C., and Paul R. Fantz. "‘Silver Sheen’, an Imposter Clone of Waukegan Juniper." HortScience 21, no. 3 (June 1986): 543–44. http://dx.doi.org/10.21273/hortsci.21.3.543.

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Abstract ‘Silver Sheen’ is a densely procumbent cultivar of Juniperus horizontalis Moench with steel-blue foliage that turns uniformly silvery-grey in winter. The cultivar is suitable for use as a ground cover or large container plant. ‘Silver Sheen’ is an improved selection of ‘Douglasii’, the widely marketed Waukegan juniper.

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Ortega-Arizmendi, Aldo I., Eugenia Aldeco-Pérez, and Erick Cuevas-Yañez. "Alkyne-Azide Cycloaddition Catalyzed by Silver Chloride and “Abnormal” SilverN-Heterocyclic Carbene Complex." Scientific World Journal 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/186537.

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A library of 1,2,3-triazoles was synthesized from diverse alkynes and azides using catalytic amounts of silver chloride instead of copper compounds. In addition, a novel “abnormal” silverN-heterocyclic carbene complex was tested as catalyst in this process. The results suggest that the reaction requires only 0.5% of silver complex, affording 1,2,3-triazoles in good yields.

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Pappas, Sara, Uday Turaga, Naveen Kumar, Seshadri Ramkumar, and Ronald J. Kendall. "Effect of Concentration of Silver Nanoparticles on the Uptake of Silver from Silver Nanoparticles in Soil." International Journal of Environmental and Agriculture Research 3, no. 5 (May 31, 2017): 80–90. http://dx.doi.org/10.25125/agriculture-journal-ijoear-may-2017-12.

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&NA;. "Silver/silver nitrate." Reactions Weekly &NA;, no. 1420 (September 2012): 44. http://dx.doi.org/10.2165/00128415-201214200-00152.

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Fung, Leo C. T., Antoine E. Khoury, Stephan I. Vas, Charles Smith, Dimitrios G. Oreopoulos, and Marc W. Mittelman. "Biocompatibility of Silver-Coated Peritoneal Dialysis Catheter in a Porcine Model." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 16, no. 4 (July 1996): 398–405. http://dx.doi.org/10.1177/089686089601600414.

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Objective Previous studies have shown that silver formulations coated onto implantable materials retard bacterial colonization and reduce the incidence of catheter-related infections. The objective of this study was to assess the histologic effects of sputter-coated silverl silicone implants on host tissue. Design Sputter silver-coated silicone peritoneal dialysis catheter segments with and without Dacron cuffs were implanted in the subcutaneous fat and muscle in 4 pigs. Noncoated implants served as controls. The specimens were retrieved at 1,2,3,4,7,8,9,10,12, and 27 weeks. Experimental Animals Four 6-week-old male Yorkshire Land race pigs (5–6 kg) were used. Main Outcome Measures Histologic parameters evaluated included the degree of inflammation, the number of giant cells, the extent of silver particulate inclusions, and the thickness of the capsules. All specimens were evaluated by a single blinded pathologist. Microbiologic analyses were also performed. Results The silver-coated catheters were associated with less inflammation than were the noncoated catheters, both infatand muscle (p=0.04). The number of giant cells was also lower around the silver-coated than the noncoated catheters, which were implanted in subcutaneous fat (p < 0.05). Particulate inclusions compatible with silver or silver oxide were observed only in tissue around silvercoated implants (p < 0.0001). The thickness of the capsules and the extent of the inflammatory zones were not significantly different. There was no evidence of infection-related changes. Conclusions These data suggest that the sputter silver coating does not act as a significant tissue irritant.

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Ciacotich, Nicole, Lasse Kvich, Nicholas Sanford, Joseph Wolcott, Thomas Bjarnsholt, and Lone Gram. "Copper-Silver Alloy Coated Door Handles as a Potential Antibacterial Strategy in Clinical Settings." Coatings 10, no. 8 (August 14, 2020): 790. http://dx.doi.org/10.3390/coatings10080790.

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Coating surfaces with a copper-silver alloy in clinical settings can be an alternative or complementary antibacterial strategy to other existing technologies and disinfection interventions. A newly developed copper-silver alloy coating has a high antibacterial efficacy against common pathogenic bacteria in laboratory setups, and the purpose of this study is to determine the antibacterial efficacy of this copper-silvery alloy in real-world clinical settings. Two field trials were carried out at a private clinic and a wound care center. Door handles coated with the copper-silver alloy had a lower total aerobic plate count (1.3 ± 0.4 Log CFU/cm2 and 0.8 ± 0.3 Log CFU/cm2, CFU stands for Colony Forming Units) than the reference uncoated material on-site (2.4 ± 0.4 Log CFU/cm2 for the stainless steel and 1.7 ± 0.4 Log CFU/cm2 for the satin brass). The copper-silver alloy did not selectively reduce specific bacterial species. This study points to the possibility of a successful long-term implementation of the copper-silver alloy coating as an antibacterial strategy.

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Moudir, Naïma, Nadji Moulaï-Mostefa, and Yacine Boukennous. "Silver micro- and nano-particles obtained using different glycols as reducing agents and measurement of their conductivity." Chemical Industry and Chemical Engineering Quarterly 22, no. 2 (2016): 227–34. http://dx.doi.org/10.2298/ciceq150106036m.

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Synthesis of silver micro- and nano-particles for the preparation of conductive pastes for the metallization of solar cells was realized by chemical reduction in the presence and absence of poly(vinyl-pyrrolidone) (PVP). Silver nitrate was used as a precursor in the presence of three polyols (ethylene glycol, di-ethylene glycol and propylene glycol) tested at experimental temperatures near their boiling points. Six samples were obtained by this protocol. Three silver powders obtained without the use of PVP have a metallic luster appearance; however, the samples produced using an excess of PVP are in the form of stable colloidal dispersions of silver nano-particles. Structural characterizations of samples using a scanning electron microscope and X-ray diffractometer show a good crystallinity and spherical morphology. From DSC and TGA analyses, it was noticed that all the nano-silvers present in the colloidal suspension have the same thermal behavior.

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Gooneratne, Ravi, Nadir Saleeb, Brett Robinson, Jo Cavanagh, and A. K. M. Mofasser Hossain. "Biochemical changes in sunflower plant exposed to silver nanoparticles / silver ions." SDRP Journal of Food Science & Technology 4, no. 2 (2019): 629–44. http://dx.doi.org/10.25177/jfst.4.2.ra.469.

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Dissertations / Theses on the topic "Silver"

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Di, Pietro Giovanna. "Silver mirroring on silver gelatin glass negatives /." [S.l.] : [s.n.], 2002. http://edoc.unibas.ch/diss/DissB_6232.

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Moncada, de la Rosa Jorge Daniel. "Winning Silver." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/52861.

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The search for mineral deposits is a time consuming, risky and very expensive process. Applying new models and methods provides a competitive advantage in the search for mineral deposits because an explorationist can quickly evaluate potential targets and eliminate areas without good potential for mineralization. This dissertation presents a practical technique for prediction to finding precious metal mineralization at Guanajauato mining district (GMD) base on theoretical and experimental studies of fluids properties, mineral phase equilibrium, physical and chemical mechanisms. Making the technique highly transportable so that it can be applied in the field during an exploration program base on petrographic characteristics of mineral textures produced during boiling events in quartz, calcite and adularia, and fluid inclusions contained in these phases. While this work was conducted in GMD, the results should be applicable in exploration for epithermal deposits worldwide. The GMD is one of the largest silver producing districts in the world. Ore shoots are localized along three major northwest trending vein systems, the La Luz, Veta Madre and Vetas de la Sierra. More than 1200 samples were collected from surface outcrops, underground mine and historical and recent drill core. Traverses perpendicular to veins in all system were also conducted. Most of the samples (approximately 90%) were also assayed for Au, Ag, Cu, Pb, Zn, As, Sb. Samples from the GMD show a wide range in silica textures are indicative of rapid precipitation, such as occurs when fluids boil. Other mineral phases, including illite, rhombic adularia and bladed calcite are also indicative of rapid growth in a hydrothermal system and are characteristic of boiling systems. Because boiling is an effective mechanism for precipitating gold and silver from hydrothermal fluids, the presence of mineral textures indicative of boiling is a desirable feature in exploration. In many samples, textural evidence for boiling is supported by coexisting liquid-rich and vapor-rich fluid inclusions, or Fluid Inclusion Assemblages consisting of only vapor-rich inclusions, suggesting "flashing" of the hydrothermal fluids. Textural and fluid inclusion evidence for boiling has been observed in the deepest levels of the GMD, suggesting that additional precious metal resources may occur beneath these levels.<br>Ph. D.

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Riley, David. "Silver Sands." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5870.

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Silver Sands is a thirty-minute documentary film and accompanying installation that traces the story of Marc Hampton, a gay, desert-dwelling Vietnam vet, former Playgirl model, and vintage car collector who lost two lovers to AIDS. Drawing on videotaped interviews, shots of his house and environs, and extensive use of his personal photographic archive, this work addresses evolving ideas of memory and representation within the queer community. The film is divided into various chapters which function as meditations on masculinity, aging, loss, spirituality and intergenerational relationships. Marc becomes an archetypal figure––the survivor––whose meandering recollections illustrate some of the complexities of gay experience in the past fifty years, and the difficulty of historicizing them. By emphasizing overlooked stories and forgotten spaces, exploring the tension between visibility and invisibility, and summoning the ghosts of the AIDS era, Silver Sands proposes remembering as a form of resistance.

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Talebpour, Cyrus. "A perovskite silver antimicrobial compound with diminished silver ion release." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/66752.

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L'infection microbienne est une des causes des maladies menaçant la vie. Elle est conventionnellement traitée par des antibiotiques. Cette pratique a entraîné l'émergence de la résistance aux antimicrobiens (RAM), qui est associée à un taux de mortalité croissant. Afin de contrer le problème, les cellules microbiennes doivent être retirées de la zone de cible sans que l’agent microbienne libère des sous-produits. Les désinfectants, tels que l'eau de Javel et le chlore, tout en étant très efficace à large spectre antimicrobien, ne conviennent pas dans certaines circonstances. Ces composés sont chimiquement réactifs, ils peuvent donc corroder les surfaces en contact et laisser des composés toxiques. D'autre part, les antibiotiques conventionnels, bien qu'ils ne présentent pas ces propriétés indésirables de désinfectants, ont généralement un spectre d'action plus étroit et sont plus sujets au développement du RAM. Entre les désinfectants et les antibiotiques, il existe des composés à base d'argent qui, tout en ayant une activité antimicrobienne à large spectre, sont relativement sans danger pour les cellules de mammifères. Le mécanisme de l'action antimicrobienne des composés d’argent classiques est basé sur la libération d'ions argent dans le milieu. L'argent est un métal coûteux et se dégrade en libérant des ions. De plus, l'exposition à des niveaux élevés d'ions d'argent est un danger pour la santé et l'environnement et donc doit être évitée. Par conséquent, incorporer étroitement des atomes d'argent dans une structure moléculaire résistante à la corrosion, tout en gardant l'activité antimicrobienne, permettrait d'utiliser l'argent comme agent antimicrobien dans des applications exigeant un composé d'argent résistant à la corrosion avec de faibles niveaux de libération d'argent dans l'environnement. Pour atteindre cet objectif, un nouveau composé d'argent, AgNbO3, a été synthétisé et caractérisé en termes de taille, de morphologie, de comportement de sédimentation, de corrosion et d'activité antimicrobienne. Il a été démontré que tout en ayant un taux de libération d'argent diminué de plus de 150 fois par rapport aux particules Ag2O de référence, l'activité antimicrobienne des nanoparticules AgNbO3, quantifiée par la concentration minimale inhibitrice (MIC), était similaire dans le cas des milieux aqueux. L'étude du mécanisme d'action a indiqué que le composé exerce son action antimicrobienne par contact avec des cellules microbiennes.<br>Microbial infections are the main causes of life threatening diseases and are conventionally treated by antibiotic agents. This practice has resulted in the emergence of antimicrobial resistance (AMR), which is associated with ever-increasing rate of mortality. In order to counter the issue, the microbial cells should be removed from targeted areas without releasing toxic byproducts behind. Disinfectants, such as bleach and chlorine, while being very effective broad-spectrum antimicrobial, are not suitable in some circumstances. These compounds are chemically reactive; thus, they can corrode the surfaces in contact and can leave behind toxic compounds particularly in reaction with organic matter. On the other hand, the conventional antibiotics, while not having these undesired properties of disinfectants, have generally narrower spectrum of action and are more prone to the development of AMR. In between of disinfectants and antibiotics there are silver-based compounds, which while having broad-spectrum antimicrobial activity, are relatively safe to mammalian cells. There are, however, some challenges associated with the usage of the conventional silver compounds as antimicrobial agent, arising from the mechanism of antimicrobial action through the release of silver ions to the medium. Silver is an expensive metal and degrades in while releasing ions. Moreover, exposure to high levels of silver ions is a health an environmental hazard and should be avoided. Therefore, tightly incorporating silver atoms in a corrosion-resistant molecular level structure with keeping the antimicrobial activity would enable feasibility of using silver as an antimicrobial agent in applications that require corrosion resistant silver compound with low levels of silver release to the environment. To achieve this goal, a new silver compound, AgNbO3, was synthesized and characterized in terms of its size, morphology, sedimentation behavior, corrosion, and antimicrobial activity. It was demonstrated that while having a diminished silver release rate of more than 150 fold compared to the reference Ag2O particles, the antimicrobial activity of AgNbO3 nanoparticles, quantified by minimum inhibitory concentration (MIC), was similar in the case of aqueous media. Investigating the mechanism of action indicated that the compound exerts its antimicrobial action via contact with microbial cells.

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Clavelli, Tony. "Your silver nose." Morgantown, W. Va. : [West Virginia University Libraries], 2010. http://hdl.handle.net/10450/11084.

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Dale, Vukanovich Theodore Lawrence, Loza José Adrián Ponce, Morales Joel Omar Quintanilla, Bustamante Víctor Alberto Rodríguez, and Cabrera Raúl Fernando Saldaña. "Proyecto Ideo Silver." Master's thesis, Universidad del Pacífico, 2016. http://hdl.handle.net/11354/1696.

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Nuestro proyecto ofrece microfranquicias de joyas de lujo (plata 960), cuyos diseños están orientados a las mujeres modernas de los niveles socioeconómicos B, C y D, entre 21 y 35 años de edad que radican en Lima Metropolitana. Asimismo, hemos definido como segmento de clientes franquiciados a los microempresarios con experiencia en productos y/o servicios relacionados con la moda. Nuestro concepto de negocio hacia el franquiciado se resume en “Sea joyero en un día, de manera formal y sostenible”, sobre la base de nuestro know-how, marca, mínima inversión, garantía de por vida de nuestros productos, innovación abierta y soporte integral mediante la tecnología web. Las joyas de plata que ofrecemos logran cubrir las expectativas que más valora nuestro segmento de cliente final, es decir: diseño, precio, seguridad, lujo y calidad, mediante las siguientes características de nuestros productos: Joyas de plata 960, garantía de por vida y hereditaria, precios bajos, acabado tipo “oro blanco”, diseños sobrios y estilos modernos. Adicionalmente, de manera innovadora estamos incluyendo la facilidad de que el cliente final pueda “renovar las joyas de marca Ideo Silver”. Nuestro modelo de negocio presenta importantes barreras de entrada, basados en el poco acceso a proveedores (materia prima, plata, especialmente para joyas de lujo), alta diferenciación (certificado internacional de autenticidad, renovación de joyas, know-how) y falta de experiencia en la industria (producción de joyas 960, que es el más alto nivel de pureza permitida para la plata). En resumen, nuestra misión es: “Promover el autoempleo a través de microfranquicias de joyas de plata peruana de alta pureza (960), a bajo precio y con diseños preferidos por la mujer moderna, generar desarrollo económico para los socios y contribuir con el desarrollo sostenido del país”.

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Gross, Shurice L. "Under Silver Ash." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1312397649.

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Paul, Anita N. "Silver-Polymer Nanocomposites." Digital Commons @ East Tennessee State University, 2016. https://dc.etsu.edu/etd/3077.

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The objective of this research was the development of an efficient method for the preparation of silver-polymer nanocomposites containing finely dispersed silver nanoparticles. The surface of nanosilver was functionalized by thiolation with 2-aminoethanethiol. Amino-modified nanosilver was covalently bonded to polyacrylic acid, biodegradable polymers like acid terminated polylactic acid, ester terminated poly(DL-lactide-co-glycolide) and acid terminated poly(DL lactide-co-glycolide) in the presence of diisopropylcarbodiimide by carbodiimide method. Esterification of the carboxyl groups of Ag-polyacrylic acid by hydrochloric acid in methanol resulted in the formation of a stable colloidal dispersion of Ag nanoparticles in the polymer matrix. It was observed that not just acid terminated polymers but also ester terminated polymers could react with functionalized nanosilver. This unusual reaction was due to the aminolysis of the ester bond in the polymer chain by the surface amino groups. Silver-polymer nanocomposites obtained with acid terminated polylactic acid and poly(DL-lactide-co-glycolide) contained highly dispersed nanosilver in the polymer matrix in comparison with the ester terminated poly(DL-lactide-co-glycolide). Chemical and structural characteristics of the obtained materials were studied by instrumental methods. Attained biodegradable materials confirmed X-ray contrast and bactericidal properties, which could be eventually used for biomedical applications.

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Zhang, Li 1973. "Shockwave consolidation of nano silver powder into bulk nano structured silver." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100238.

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Bulk nanostructured silver components were fabricated from nano-sized powder using a shockwave consolidation technique. The grain size evolution during compaction, the mechanical properties of the bulk components, and the effect of surface finish on the mechanical behavior were studied. X-Ray diffraction, transmission electron microscopy (TEM), atomic force microscopy (AFM), microhardness, compression testing and shear punch testing at room temperature were used to characterize the materials. Upon consolidation, the average grain size calculated from image analysis of the TEM micrographs was 49+/-22 nm, showing the feasibility of maintaining a nanostructure upon dynamic consolidation. The hardness of the bulk nanostructured components was constant across the diameter with an average of 83+/-1 HV. Compression results showed strength about 390+/-10 MPa and ductility of 23+/-2%, which is well above strength level obtainable from strain hardened Ag components. The AFM results show that samples possessing a surface roughness of 267 nm exhibited a brittle behavior and a reduction in strength of 35% when compared to the smoother surfaces. Dimples were observed for the samples exhibiting plasticity, while an intergranular pattern was identified for the brittle materials. Fracture toughness of 0.2 MPa m was calculated, which confirms the strong relationship between fracture toughness and defects observed in nanomaterials.

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Khodaparast, Zahra. "Toxicity of silver nanoparticles and silver nitrate on Nassarius reticulatus larvae." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15327.

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Mestrado em Toxicologia e Ecotoxicologia<br>Production and utilization of silver nanoparticles (AgNPs) for various applications is growing rapidly, mainly due to their antibacterial activity. Their inclusion in many consumer products led to an increased release of AgNPs in the environment, especially in aquatic ecosystems. AgNPs reach both freshwater and marine environments from the effluents of the wastewater treatment plants, presenting differentiated behavior in these two environments potentially influencing its toxicity. The study of AgNPs toxicity to marine organisms is extremely important to the assessment of the potential risk of AgNPs in the environment. The toxicity of AgNPs on the living organisms is dependent on various environmental conditions. Regarding the toxicity of AgNPs in the marine environment, there is a lack of information on the toxic effects at different salinities. This study upsurges to fill this gap, being the first report on the effects of AgNPs on marine gastropods, using Nassarius reticulatus as a case study. N. reticulatus adults were collected from a reference population in Ria de Aveiro (NW Portugal, 40° 38' 33.24"N | 8° 44' 06.69’’W). Specimens were transported to the laboratory in local seawater and kept in aquaria to spawn. Egg capsules were maintained until veliger larva were noticed, which enclosure was induced by cesarean. These recently hatched larvae were then exposed to nominal concentrations of AgNPs and Ag+ (0.1, 1, 10, 100 μg Ag/L) for up to 96 h, either in the presence or absence of food. Larval mortality and swimming behavior –namely the velum beating arrest–were determined for each treatment. The median lethal concentration (LC50) of AgNPs was higher to that of ionic Ag (AgNO3). Results also revealed that the negative impact of AgNPs on N. reticulatus veligers swimming ability is higher when compared with the effect of ionic Ag (EC50-96 h 1.044 μg Ag/L). However, although the velum arrests have significantly decreased under Ag+ exposure, AgNPs did not show any effects. Additionally, the presence of the food proved to be an effective factor that can cause a significant drop in the mortality of the N. reticulatus larvae exposed to AgNPs.<br>A produção e utilização de nanopartículas de prata (AgNPs) em diversas aplicações têm crescido rapidamente, principalmente devido à sua atividade antibacteriana. A inclusão de AgNPs em muitos produtos de consumo conduziu a um aumento da sua libertação no meio ambiente, especialmente nos ecossistemas aquáticos. As AgNPs atingem tanto o ambiente marinho como o de água doce a partir da descarga de efluentes de estações de tratamento de águas residuais, apresentando comportamento diferenciado nestes dois meios, potencialmente influenciando a sua toxicidade. O estudo da toxicidade das AgNPs em organismos marinhos é extremamente importante na avaliação do potencial risco da presença de AgNPs no ambiente. A toxicidade de AgNPs emorganismos vivos é dependente de várias condições ambientais. No que se refere à toxicidade das AgNPs em ambiente marinho, verifica-se uma lacuna de informação relativamente aos efeitos tóxicos a diferentes salinidades. Este trabalho surge para preencher esta lacuna, sendo o primeiro relato do efeito de AgNPs em larvas de gastrópodes marinhos, usando Nassarius reticulatus como caso de estudo. Foram colhidos adultos de N. reticulatus de uma população de referência da Ria de Aveiro (NW Portugal, 40° 38' 33.24"N | 8° 44' 06.69’’W). Os espécimes foram transportados para o laboratório em água do local e aí mantidos em aquário até à postura de cápsulas ovígeras. As cápsulas foram mantidas até à observação de larvas velígeras no seu interior, cuja eclosão foi induzida por cesariana. Estas larvas recém-eclodidas foram então expostas a concentrações nominais de AgNPs e Ag+ (0,1, 1, 10, 100 ug de Ag / L), durante 96 h, na presença ou ausência de alimento. A mortalidade larvar e o comportamento de natação, nomeadamente a inibição do batimento do velum, foram determinados para cada um dos tratamentos. A concentração letal média (CL50) das AgNPs revelou-se superior à da Ag iónica (AgNO3). Os resultados também revelaram que o impacto negativo das AgNPs na natação das velígeras de N. reticulatus é superior (EC50-96 h 0.044 μg Ag/L) quando comparado com o efeito da Ag iónica (EC50-96 h 1.044 μg Ag/L). Contudo, embora a inibição da movimentação do velum das larvas ter diminuido significativamente na presença de Ag+, as AgNPs não mostraram quaisquer efeitos na inibição do batimento do velum. Adicionalmente, a presença de alimento revelou ser um fator importante, podendo causar uma redução significativa na mortalidade das larvas de N. reticulatus expostas a AgNPs.

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Books on the topic "Silver"

1

Kant͡sedikas, A. S. Silver. Moskva: Imidzh, 1991.

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Urbanyi, Pablo. Silver. Oakville, Ont: Mosaic Press, 2005.

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Penny, Halsall. Silver. Toronto: Harlequin Books, 1990.

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Reese, Robert G. Silver. Washington, D.C: U.S. Department of the Interior, Bureau of Mines, 1992.

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Belval, Brian. Silver. New York: Rosen Pub. Group, 2007.

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Wolitzer, Hilma. Silver. London: Hutchinson, 1989.

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Graham, Masterton. Silver. London: W.H. Allen, 1987.

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Urbanyi, Pablo. Silver. Oakville, Ont: Mosaic Press, 2005.

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Ontario. Ministry of Natural Resources. Division of Mines. Mineral Resources Branch. Silver. S.l: s.n, 1985.

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Mohide, Thomas Patrick. Silver. Toronto, Ont: Ontario Ministry of Natural Resources, 1985.

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Book chapters on the topic "Silver"

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Castroviejo, Ricardo. "Silver (Ag, native silver)." In A Practical Guide to Ore Microscopy—Volume 1, 669–74. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-12654-3_111.

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Kampf, Günter. "Silver." In Antiseptic Stewardship, 563–607. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98785-9_15.

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Kurtz, Wolfgang, and Hans Vanecek. "Silver." In W Tungsten, 235–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-662-08690-2_27.

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Mango, Helen. "Silver." In Encyclopedia of Earth Sciences Series, 1–6. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39193-9_257-1.

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Mango, Helen. "Silver." In Encyclopedia of Earth Sciences Series, 1340–44. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_257.

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Crowson, Phillip. "Silver." In Minerals Handbook 1992–93, 231–37. London: Palgrave Macmillan UK, 1992. http://dx.doi.org/10.1007/978-1-349-12564-7_36.

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Johnson, Giffe T. "Silver." In Hamilton & Hardy's Industrial Toxicology, 229–32. Hoboken, New Jersey: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118834015.ch31.

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Crowson, Phillip. "Silver." In Minerals Handbook 1994–95, 241–47. London: Palgrave Macmillan UK, 1994. http://dx.doi.org/10.1007/978-1-349-13431-1_38.

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Crowson, Phillip. "Silver." In Minerals Handbook 1996–97, 332–40. London: Palgrave Macmillan UK, 1996. http://dx.doi.org/10.1007/978-1-349-13793-0_39.

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Turova, Nataliya. "Silver." In Inorganic Chemistry in Tables, 90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20487-6_33.

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Conference papers on the topic "Silver"

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Hindin, Barry S. "Silver Sulfide Corrosion Control Using Corrosion Prevention Compounds." In CORROSION 2006, 1–9. NACE International, 2006. https://doi.org/10.5006/c2006-06264.

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Abstract Silver is commonly used in the manufacture of surface-mounted electrical components such as chip resistors but is susceptible to silver sulfide formation when exposed to certain sulfur-bearing gaseous environments. Formation of silver sulfide in an electrical component often results in its malfunction or failure. Traditional conformal coatings used to protect electrical circuits often cannot prevent formation of silver sulfide. A variety of corrosion prevention compounds (CPCs) were compared for their ability to protect thin silver films from forming silver sulfide corrosion products when exposed to Battelle’s Class III flowing mixed gas (FMG) environment. The results showed that the hard film-forming CPCs provided significantly better protection than other types of CPCs.

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Wallace, Terry. "Silver and silver-bearing minerals." In 14th Annual New Mexico Mineral Symposium. Socorro, NM: New Mexico Bureau of Geology and Mineral Resources, 1993. http://dx.doi.org/10.58799/nmms-1993.159.

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Casares, Juan P. "Silver." In CHI '01 extended abstracts. New York, New York, USA: ACM Press, 2001. http://dx.doi.org/10.1145/634067.634315.

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Casares, Juan P. "Silver." In CHI '01 extended abstracts. New York, New York, USA: ACM Press, 2001. http://dx.doi.org/10.1145/634295.634315.

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Long, A. Chris, Juan Casares, Brad A. Myers, Rishi Bhatnagar, Scott M. Stevens, Laura Dabbish, Dan Yocum, and Albert Corbett. "SILVER." In CHI '03 extended abstracts. New York, New York, USA: ACM Press, 2003. http://dx.doi.org/10.1145/765891.765898.

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Deniz, Sabahattin. "RECOVERY OF SILVER FROM PRINTED ELECTRONIC WASTE." In INTERNATIONAL SYMPOSIUM ON GRAPHIC ENGINEERING AND DESIGN. UNIVERSITY OF NOVI SAD FACULTY OF TECHNICAL SCIENCES DEPARTMENT OF GRAPHIC ENGINEERING AND DESIGN 21000 Novi Sad, Trg Dositeja Obradovića 6, 2024. http://dx.doi.org/10.24867/grid-2024-p74.

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Printed electronics are preferred over traditional circuit systems in various fields such as energy, healthcare, packaging, and automotive due to reasons like lower silver ink usage, thinner product production, and suitability for mass production. The most commonly used type of ink in printed electronics is silver-based ink. Due to silver's high conductivity and the conductivity of its oxide, it is the most widely used material in printed electronic inks compared to other organic materials and metals. The growing needs of developing technology and the use of silver in other industries continually drive up its price. Considering environmental issues, the recovery of silver from printed electronics has become quite significant. This study aims to determine the effectiveness of two different methods in the recovery of silver ink printed on textile material. In the study, commercial silver paste inks were printed on textile material using screen printing. After drying, the printed samples were aged for two years, and then the silver recovery process was applied. Two methods were employed for silver recovery. In the first method, the silver-printed sample was burned at high temperature, and the silver in the resulting ash was dissolved in nitric acid. In the second method, the silver-printed sample was cut into small pieces and treated with nitric acid without burning to dissolve the silver. The amount of silver dissolved in the solution in both methods was determined using atomic absorption spectrophotometry. Additionally, the effects of nitric acid concentration on recovery were investigated. As a result, it was determined that the amount of silver recovered by the incineration method was higher, but the energy cost was also higher compared to the other method.

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Aukland, N. R., H. C. Hardee, S. Hessefort, and J. Miller. "The effect of ozone on silver, silver alloys and gold plated silver." In Electrical Contacts - 1999. IEEE, 1999. http://dx.doi.org/10.1109/holm.1999.795951.

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"Silver sponsors." In 2017 32nd IEEE/ACM International Conference on Automated Software Engineering (ASE). IEEE, 2017. http://dx.doi.org/10.1109/ase.2017.8115609.

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Zsarnoczky, Martin. "Silver tourism." In International Scientific Days 2016 :: The Agri-Food Value Chain: Challenges for Natural Resources Management and Society. Slovak University of Agriculture in Nitra, 2016. http://dx.doi.org/10.15414/isd2016.s7.15.

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Ho, J. F., B. Luk'yanchuk, and J. B. Zhang. "Fano resonance in silver-silica-silver multilayer nanoshells." In Optical Data Storage 2010, edited by Susanna Orlic and Ryuichi Katayama. SPIE, 2010. http://dx.doi.org/10.1117/12.859102.

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Reports on the topic "Silver"

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Reimann, G. A. Reclaiming silver from silver zeolite. Office of Scientific and Technical Information (OSTI), October 1991. http://dx.doi.org/10.2172/6976372.

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Reimann, G. A. Reclaiming silver from silver zeolite. Office of Scientific and Technical Information (OSTI), October 1991. http://dx.doi.org/10.2172/10116957.

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Christmann, Adam. Code Silver. Fort Belvoir, VA: Defense Technical Information Center, March 2006. http://dx.doi.org/10.21236/ada446347.

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Fagerquist, Clifton K., Dilip K. Sensharma, and A. El-Sayed. 'Mixed' Metallic-Ionic Clusters of the Silver/Silver Iodide. Fort Belvoir, VA: Defense Technical Information Center, July 1991. http://dx.doi.org/10.21236/ada237883.

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Owen, J. V. Silver Mountain, Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/130403.

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Jacks, David, Se Yan, and Liuyan Zhao. Silver Points, Silver Flows, and the Measure of Chinese Financial Integration. Cambridge, MA: National Bureau of Economic Research, October 2016. http://dx.doi.org/10.3386/w22747.

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Hsu, P. C., Z. Chiba, B. J. Schumacher, L. C. Murguia, and M. G. Adamson. Recovery of silver from waste silver chloride for the MEO system. Office of Scientific and Technical Information (OSTI), February 1996. http://dx.doi.org/10.2172/250506.

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Boulineau, B. Silver recovery system data. Office of Scientific and Technical Information (OSTI), August 1991. http://dx.doi.org/10.2172/10141811.

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Ruzicka, V., and R. I. Thorpe. Arsenide silver-cobalt veins. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/207996.

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Dawson, K. M. Skarn zinc-lead-silver. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/208016.

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