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Artykuły w czasopismach na temat „Silver”

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Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 12 października 2024

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1

Gupta, Ajay. "Silveron Gel (Nano Silver Formulation): A Powerful Antimicrobial for the Future". New Indian Journal of surgery 12, nr 4 (15.12.2021): 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 i 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 (wrzesień 1985): 329–36. http://dx.doi.org/10.1016/0040-6031(85)85225-4.

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Pappas, Sara, Uday Turaga, Naveen Kumar, Seshadri Ramkumar i 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, nr 5 (31.05.2017): 80–90. http://dx.doi.org/10.25125/agriculture-journal-ijoear-may-2017-12.

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Hatch, Laurence C., i Paul R. Fantz. "‘Silver Sheen’, an Imposter Clone of Waukegan Juniper". HortScience 21, nr 3 (czerwiec 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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5

Ortega-Arizmendi, Aldo I., Eugenia Aldeco-Pérez i 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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6

&NA;. "Silver/silver nitrate". Reactions Weekly &NA;, nr 1420 (wrzesień 2012): 44. http://dx.doi.org/10.2165/00128415-201214200-00152.

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7

Gooneratne, Ravi, Nadir Saleeb, Brett Robinson, Jo Cavanagh i A. K. M. Mofasser Hossain. "Biochemical changes in sunflower plant exposed to silver nanoparticles / silver ions". SDRP Journal of Food Science & Technology 4, nr 2 (2019): 629–44. http://dx.doi.org/10.25177/jfst.4.2.ra.469.

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8

Fung, Leo C. T., Antoine E. Khoury, Stephan I. Vas, Charles Smith, Dimitrios G. Oreopoulos i 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, nr 4 (lipiec 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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9

Ciacotich, Nicole, Lasse Kvich, Nicholas Sanford, Joseph Wolcott, Thomas Bjarnsholt i Lone Gram. "Copper-Silver Alloy Coated Door Handles as a Potential Antibacterial Strategy in Clinical Settings". Coatings 10, nr 8 (14.08.2020): 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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10

Murphy, Michael. "Silver and silver alloys". Metal Finishing 95, nr 2 (luty 1997): 27. http://dx.doi.org/10.1016/s0026-0576(97)94209-4.

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11

Moudir, Naïma, Nadji Moulaï-Mostefa i 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, nr 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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12

Neimash, V. B., H. D. Kupianskyi, I. V. Olkhovyk, V. I. Styopkin, P. M. Lytvynchuk, V. Yu Povarchuk, I. S. Roguts’kyi, Yu A. Furmanov i S. M. Titarenko. "Formation of Silver Nanoparticles in PVA-PEG Hydrogel under Electron Irradiation". Ukrainian Journal of Physics 64, nr 1 (30.01.2019): 41. http://dx.doi.org/10.15407/ujpe64.1.41.

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The formation of silver nanoparticles in a hydrogel on the basis of polyvinyl alcohol and polyethylene glycol at its crosslinking under the electron irradiation has been studied using the optical spectroscopy and scanning electron microscopy methods. The growth of nanoparticles 40–70 nm in size and their clustering into aggregates about a few hundred nanometers in diameter are demonstrated. The total concentration of nanoparticles and their size correlate with the concentration of ionic silver in the initial solution and the electron irradiation dose. The formation of nanoparticles is interpreted as a result of the radiation-induced chemical reduction of silver in the solution that is spatially confined in the cells of a 3D microstructure in the crosslinked hydrogel. The radiation-crosslinked hydrogel demonstrates an antiseptic effect for 7 of 8 tested microorganisms at silver concentrations of 0.001–0.003 wt.%, which is at least an order of magnitude lower than effective concentrations of ionic and colloidal silvers.

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13

Calzaferri, Gion, Dominik Brühwiler, Stephan Glaus, David Schürch, Antonio Currao i Claudia Leiggener. "Quantum-Sized Silver, Silver Chloride and Silver Sulfide Clusters". Journal of Imaging Science and Technology 45, nr 4 (1.07.2001): 331–39. http://dx.doi.org/10.2352/j.imagingsci.technol.2001.45.4.art00004.

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14

Hoang, Thu Thi, i Trung Quang Tran. "Investigating the effect of capping agent PVP on the synthesis of silver nanowires by polyol method and its application as flexible transparent conducting electrode". Science and Technology Development Journal 16, nr 4 (31.12.2013): 52–60. http://dx.doi.org/10.32508/stdj.v16i4.1596.

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In this report, we present a rapid and efficient polyol method - the solution-phase approach for the large scale synthesis of silver nanowires with diameters in the range of 40 - 50 nm, and lengths up to 20 μm. Although the polyol process is a popular method of preparing metal nanostructures, so far most of the published works mainly focused on the synthesis process regardless of amount of surfactants. In this article, we successfully synthesized large-scale uniform silver nanowires with high aspect ratios by introducing the long-chain PVP (MW = 58 000) and investigated the effect of the amount of PVP on the synthesis of Ag nanowires by studying their morphologies, structures and optical properties. The dependency of nanowire morphology and aspect ratio on synthesis parameters was shown via SEM images. The diameter of nanowires decreased when the molar ratio of PVP to silver nitrate was increased. Further more, the molar ratios decided the morphology (particle, rod or wire) of the Silve solution. Synthesized silver nanowires were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). This aqueous dispersions of silver nanowires were used to prepare thin, flexible, transparent, conducting films on polyethylene terephthalate substrate (PET) by spraying method. The prepared silver nanowire films on PET substrate had a transparency of 82% and sheet resistance of 10 Ω/□.

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15

Wallace, Terry C., Mark Barton i Wendell E. Wilson. "Silver & Silver-Bearing Minerals". Rocks & Minerals 69, nr 1 (luty 1994): 16–38. http://dx.doi.org/10.1080/00357529.1994.9925571.

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16

Rai, Abha Rani, i Mukhtar Singh. "Studies on silver-silver carboxylate indicator electrodes: Part 1—The silver-silver acetate electrode". Proceedings / Indian Academy of Sciences 102, nr 4 (sierpień 1990): 555–61. http://dx.doi.org/10.1007/bf02867834.

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17

Kim, Jeong-Min, Won-Jeong Kim, Han-Jin Jung, Hyun-Chang Ko, Moon-Bum Kim, Weon-Ju Lee, Seok-Jong Lee, Do-Won Kim i Byung-Soo Kim. "Silver Woman and Silver Man after Ingestion of Silver Solution: How about Silver Mouse?" Annals of Dermatology 25, nr 2 (2013): 255. http://dx.doi.org/10.5021/ad.2013.25.2.255.

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18

Fausey, Jason C. "Controlling Liverwort and Moss Now and in the Future". HortTechnology 13, nr 1 (styczeń 2003): 35–38. http://dx.doi.org/10.21273/horttech.13.1.0035.

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The liverwort, marchantia (Marchantia polymorpha), and silver thread moss (Bryum argenteum) are two highly invasive and difficult to control pests in containerized ornamentals. Container trials were conducted evaluating marchantia and silve r thread moss control with preemergence and postemergence applications of chlorothalonil, captan, ammonium chlorides, hydrogen dioxide, flumioxazin, oxyfluorfen, pelargonic acid, acetic acid (vinegar), copper sulfate, cinnamaldehyde, prodiamine, and oxadiazon. Flumioxazin, oxyfluorfen, pelargonic acid, acetic acid, and oxadiazon provided acceptable preemergence and/or postemergence marchantia and silver thread moss control; however, no product provided acceptable control of these weeds at all evaluations. Under controlled environmental conditions marchantia and silver thread moss were controlled with flumioxazin, oxyfluorfen, pelargonic acid, acetic acid, and oxadiazon. In addition to providing postemergence control of these weeds, flumioxazin, oxyfluorfen, and oxidiazon also had residual activity when applied to potting media. However, the length and effectiveness of the preemergence control with flumioxazin, oxyfluorfen, and oxadiazon was dependant upon formulation. In a separate study comparing granular and sprayable formulations of flumioxazin, oxyfluorfen, and oxidiazon, results indicated control of established marchantia and silver thread moss was greater with sprayable formulations when compared with granular formulations. Similarly, sprayable formulations of these active ingredients enhanced residual marchantia and silver thread moss control. The granular and sprayable formulations of flumioxazin provided greater preemergence and postemergence control of marchantia and silver thread moss when compared with granular or sprayable formulations of oxyfluorfen and oxadiazon, and of the products evaluated, displayed the greatest level of activity against these weeds.

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19

Kadish, K. M., X. Q. Lin, J. Q. Ding, Y. T. Wu i C. Araullo. "A reinvestigation of silver porphyrin electrochemistry. Reactions of silver(III), silver(II), and silver(I)". Inorganic Chemistry 25, nr 18 (sierpień 1986): 3236–42. http://dx.doi.org/10.1021/ic00238a029.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1390 (luty 2012): 37. http://dx.doi.org/10.2165/00128415-201213900-00146.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1175 (październik 2007): 22–23. http://dx.doi.org/10.2165/00128415-200711750-00077.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1156 (czerwiec 2007): 23–24. http://dx.doi.org/10.2165/00128415-200711560-00073.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1369 (wrzesień 2011): 34–35. http://dx.doi.org/10.2165/00128415-201113690-00124.

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Williams, Evan. "Silver". Pleiades: Literature in Context 42, nr 1 (marzec 2022): 39. http://dx.doi.org/10.1353/plc.2022.0072.

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Dacey, Philip. "Silver". College English 57, nr 1 (styczeń 1995): 85. http://dx.doi.org/10.2307/378354.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1281 (grudzień 2009): 29. http://dx.doi.org/10.2165/00128415-200912810-00093.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1254 (maj 2009): 37. http://dx.doi.org/10.2165/00128415-200912540-00111.

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&NA;. "Silver". Reactions Weekly &NA;, nr 990 (luty 2004): 13. http://dx.doi.org/10.2165/00128415-200409900-00036.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1288 (luty 2010): 36. http://dx.doi.org/10.2165/00128415-201012880-00111.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1292 (marzec 2010): 34. http://dx.doi.org/10.2165/00128415-201012920-00107.

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Carlin, Vuyelwa. "Silver". Iowa Review 23, nr 1 (styczeń 1993): 63–64. http://dx.doi.org/10.17077/0021-065x.4230.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1338 (luty 2011): 31. http://dx.doi.org/10.2165/00128415-201113380-00107.

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Salcido, Richard "Sal". "Silver". Advances in Skin & Wound Care 19, nr 9 (listopad 2006): 472–74. http://dx.doi.org/10.1097/00129334-200611000-00001.

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Young, Jay A. "Silver". Journal of Chemical Education 81, nr 4 (kwiecień 2004): 478. http://dx.doi.org/10.1021/ed081p478.

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SHAW, ALAN. "SILVER". Chemical & Engineering News 81, nr 36 (8.09.2003): 118. http://dx.doi.org/10.1021/cen-v081n036.p118.

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van Hogendorp, Sophie. "SILVER". Zorg + Welzijn 26, nr 2 (kwiecień 2020): 44–51. http://dx.doi.org/10.1007/s41185-020-0526-3.

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&NA;. "Silver". Reactions Weekly &NA;, nr 1422 (październik 2012): 43–44. http://dx.doi.org/10.2165/00128415-201214220-00145.

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Spear, Marcia. "Silver". Plastic Surgical Nursing 30, nr 2 (kwiecień 2010): 90–93. http://dx.doi.org/10.1097/psn.0b013e3181deea2e.

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Morgan, Speer. "Silver". Missouri Review 25, nr 2 (2002): 5–10. http://dx.doi.org/10.1353/mis.2002.0057.

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Smith, W. "Silver". Coordination Chemistry Reviews 67, nr 1 (październik 1985): 297–309. http://dx.doi.org/10.1016/0010-8545(85)85016-5.

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Housecroft, Catherine E. "Silver". Coordination Chemistry Reviews 115 (czerwiec 1992): 141–61. http://dx.doi.org/10.1016/0010-8545(92)80039-t.

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Housecroft, Catherine E. "Silver". Coordination Chemistry Reviews 131 (marzec 1994): 1–43. http://dx.doi.org/10.1016/0010-8545(94)80090-1.

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Tate, Eldon W., i James H. Johnston. "Photocatalytic silver/silver chloride polymer nanocomposites". Nanomaterials and Energy 3, nr 6 (listopad 2014): 222–28. http://dx.doi.org/10.1680/nme.14.00023.

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Damm, Cornelia. "Silver Ion Release from Polymethyl Methacrylate Silver Nanocomposites". Polymers and Polymer Composites 13, nr 7 (październik 2005): 649–56. http://dx.doi.org/10.1177/096739110501300701.

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Polymethyl methacrylate (PMMA) silver nanocomposites were prepared by the thermal reduction of silver(I) trifluoroacetate. Transmission electron microscopic investigations reveal that the silver nanoparticles were spherical and their particle sizes were between 5 nm and 50 nm. The particles were distributed randomly in the PMMA matrix. Immersion of the nanocomposites in water led to a release of silver ions. The silver ion release from the PMMA silver nanocomposites was measured by anodic stripping voltammetry. When a nanocomposite sample having a surface area of 36.8 cm2 and a silver content of 0.12 wt% was immersed in water, the silver ion concentration in the surrounding water was about 0.05 mg/l after two days. This is sufficient to kill bacteria. Using conventional silver powder as a filler, a silver content 30 times higher is necessary to achieve the same silver ion concentration in the surrounding water under the same conditions. The silver ion concentration in the water increased with increasing nanosilver content of the composites. The composites incorporating conventional silver powder are not transparent. In contrast, PMMA silver nanocomposites containing less than 0.25 wt% silver show a translucency sufficient for use in packaging materials.

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Cipriani, Curzio, Marcello Corazza i Giuseppe Mazzetti. "Reinvestigation of natural silver antimonides". European Journal of Mineralogy 8, nr 6 (8.01.1997): 1347–50. http://dx.doi.org/10.1127/ejm/8/6/1347.

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Grochala, Wojciech, Russ G. Egdell, Peter P. Edwards, Zoran Mazej i Boris Žemva. "On the Covalency of Silver-Fluorine Bonds in Compounds of Silver(I), Silver(II) and Silver(III)". ChemPhysChem 4, nr 9 (10.09.2003): 997–1001. http://dx.doi.org/10.1002/cphc.200300777.

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Giumlia-Mair, Alessandra, Susan C. Ferrence, Philip P. Betancourt i James D. Muhly. "Silver and silvery alloys in Early Minoan IB Crete". Materials and Manufacturing Processes 35, nr 13 (10.09.2020): 1476–83. http://dx.doi.org/10.1080/10426914.2020.1729989.

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Shirzaditabar, Farzad, i Maryam Saliminasab. "Tunable optical properties of silver–dielectric–silver nanoshell". International Journal of Modern Physics B 28, nr 20 (19.06.2014): 1450134. http://dx.doi.org/10.1142/s0217979214501343.

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Tunable optical properties of silver–dielectric–silver nanoshell including surface plasmon resonance (SPR) and resonance light scattering (RLS) based on quasi-static theory are investigated. When the silver core radius increases, the longer resonance wavelength red shifts and light scattering cross-section decreases whereas the shorter resonance wavelength blue shifts and the light scattering cross-section increases. The effect of middle dielectric thickness on the light scattering cross-section of nanoshell is different from those of the silver core radius changes. As middle dielectric radius increases, the longer resonance wavelength first blue shifts and then red shifts and the light scattering cross-section increases whereas the shorter resonance wavelength always red shifts and the light scattering cross-section decreases. The sensitivity of RLS to the refractive index of embedding medium is also reported. As the silver core radius increases, the sensitivity of silver–dielectric–silver nanoshell decreases whereas increasing the middle dielectric thickness leads to increase the sensitivity of silver–dielectric–silver nanoshell. Tunable optical properties of silver–dielectric–silver nanoshell verify the biosensing potential of this nanostructure.

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Hadrup, Niels, i Henrik R. Lam. "Oral toxicity of silver ions, silver nanoparticles and colloidal silver – A review". Regulatory Toxicology and Pharmacology 68, nr 1 (luty 2014): 1–7. http://dx.doi.org/10.1016/j.yrtph.2013.11.002.

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Kumar-Krishnan, Siva, Evgen Prokhorov, Monserrat Hernández-Iturriaga, Josué D. Mota-Morales, Milton Vázquez-Lepe, Yuri Kovalenko, Isaac C. Sanchez i Gabriel Luna-Bárcenas. "Chitosan/silver nanocomposites: Synergistic antibacterial action of silver nanoparticles and silver ions". European Polymer Journal 67 (czerwiec 2015): 242–51. http://dx.doi.org/10.1016/j.eurpolymj.2015.03.066.

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