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Improved method for separation of silver nanoparticles synthesized using the Nyctanthes arbor-tristis shrub

, “A new technology of microdispersed silver in polyurethane induces antimicrobial activity in central venous catheters”, Infection, Vol. 27, 16-23, 1999. DOI:10.1007/BF02561612 [9] S. Gurunathana, K.J. Leeb, K. Kalishwaralala, S. Sheikpranbabua, R. Vaidyanathan, and S.H. Eom, “Antiangiogenic properties of silver nanoparticles”, Biomaterials, Vol. 30, 6341-6350, 2009. DOI: 10.1016/j.biomaterials.2009.08.008. [10] Y.H. Hsin, C.F. Chen, S. Huang, T.S. Shih, P.S.Lai, and P.J. Chueh, “The apoptotic effect of nanosilver is mediated by a ROS- and JNK

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Silver nanoparticle accumulation by aquatic organisms – neutron activation as a tool for the environmental fate of nanoparticles tracing

References 1. Ahamed, M., AlSalhi, M. S., & Siddiqui, M. K. J. (2010). Silver nanoparticle applications and human health. Clin. Chim. Acta, 411, 1841-1848. DOI: 10.1016/j.cca.2010.08.016. 2. Capek, I. (2004). Preparation of metal nanoparticles in water-in-oil (w/o) microemulsions. Adv. Colloid Interface Sci., 110, 49-74. DOI: 10.1016/j. cis.2004.02.003. 3. Mahendra, R., Alka, Y., & Aniket, G. (2009). Silver nanoparticles as a new generation of antimicrobials. Biotechnol. Adv., 27(1), 76-83. DOI: 10.1016/j

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Effects of silver nanoparticles of different sizes on cytotoxicity and oxygen metabolism disorders in both reproductive and respiratory system cells

References Arora, S., Jain, J., Rajwade, J.M. & Paknikar, K. (2008). Cellular responses induced by silver nanoparticles: in vitro studies, Toxicology Letters, 179, pp. 93-100. doi: 10.1016/j.toxlet.2008.04.009. Arora, S., Jain, J., Rajwade, J.M. & Paknikar, K. (2009). Interactions of silver nanoparticles with primary mouse fibroblasts and liver cells, Toxicology and Applied Pharmacology, 236, pp. 310-318. doi: 10.1016/j.taap.2009.02.020 Asare, N., Instanes, C., Sandberg, W.J., Refsnes, M., Schwarze, P

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The Effect of Administration of Silver Nanoparticles on the Immune Status of Chickens

References Aebi H. (1984). Catalase in vitro. Method. Enzymol., 105: 121-126. Ahmadi F., Rahimi F. (2011). The effect of different levels of nano silver on performance and retention of silver in edible tissues of broilers. World Appl. Sci., 12: 1-4. Ahmadi F., Khah M.M., Javid S., Zarneshan A., Akradi L., Salehifar P. (2013). The effect of dietary silver nanoparticles on performance, immune organs, and lipid serum of broiler chickens during starter period. Int. J. Biosci., 3: 95

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Green synthesis of silver nanoparticles using tannins

Abstract

Colloidal silver nanoparticles were prepared by rapid green synthesis using different tannin sources as reducing agent viz. chestnut (CN), mangrove (MG) and quebracho (QB). The aqueous silver ions when exposed to CN, MG and QB tannins were reduced which resulted in formation of silver nanoparticles. The resultant silver nanoparticles were characterized using UV-Visible, X-ray diffraction (XRD), scanning electron microscopy (SEM/EDX), and transmission electron microscopy (TEM) techniques. Furthermore, the possible mechanism of nanoparticles synthesis was also derived using FT-IR analysis. Spectroscopy analysis revealed that the synthesized nanoparticles were within 30 to 75 nm in size, while XRD results showed that nanoparticles formed were crystalline with face centered cubic geometry.

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PALS investigations of matrix Vycor glass doped with molecules of luminescent dye and silver nanoparticles. Discrepancies from the ETE model

). DOI: 10.1016/j.jlumin.2015.02.022. 12. Saraidarov, T., Levchenko, V., & Reisfeld, R. (2010). Synthesis of silver nanoparticles and their stabilization in different sol-gel matrices: Optical and structural characterization. Phys. Status Solidi C , 7 (11/12), 2648–2651. DOI: 10.1002/pssc.200983784. 13. Kansy, J. (1996). Microcomputer program for analysis of positron annihilation lifetime spectra. Nucl. Instrum. Methods Phys. Res., Sect. A-Accel. Spectrom. Dect. Assoc. Equip. , 374 (2), 235–244. DOI: 10.1016/0168-9002(96)00075-7. 14. Shukla, A

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pH effect on the aggregation of silver nanoparticles synthesized by chemical reduction

Abstract

Silver colloidal nanoparticles were prepared according to the chemical reduction method in which the ascorbic acid was used as a reducing agent and sodium citrate as a stabilizing agent. The absorption spectra of all prepared samples obtained using the UV-Vis spectrophotometer showed a surface plasmon peak at a wavelength of about 420 nm. The size of the silver nanoparticles was controlled by changing the pH values of the reaction system. At high pH, smaller size silver nanoparticles were obtained compared to low pH values. This difference can be attributed to the difference in the reduction rate of the precursor. In addition to the inverse proportionality between the size and the pH value it is clear that increasing the pH value enables us to obtain spherical nanoparticles while at low pH, rods and triangular particle shapes were formed. Poor balance between nucleation and growth processes could be the cause of this result.

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GOLD AND SILVER NANOPARTICLES IN Spirulina platensis BIOMASS FOR MEDICAL APPLICATION

, Prasad S, Gambhir IS. Dig J Nanomater Bios. 2008;3:115-122. [7] Ahamed M, Alsalhi MS, Siddiqui MK. Clin Chim Acta. 2010;411:1841-1848. PubMed: 20719239. [8] Kim CJ, Jung YH, Oh HM. J Microbiol. 2007;45:122-127. [9] Belay A, Ota Y, Miyakawa K, Shimamatsu H. J Appl Phycol. 1993;5:235-241. [10] Doshi H, Ray A, Kothari IL. Biotechnol Bioeng. 2007;96;1051-1063. DOI 10.1002/bit.21190. [11] Sadowski Z. Biosynthesis and Application of Silver and Gold Nanoparticles. In: Pozo Perez D, editor. Silver

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Green synthesis, characterization and antibacterial activities of silver nanoparticles from strawberry fruit extract

LITERATURE CITED 1. Chowdhury, I.H., Ghosh, S., Roy, M. & Naskar, M.K. (2015). Green synthesis of water-dispersible silver nanoparticles at room temperature using green carambola (star fruit) extract. J. Sol–Gel Sci. Techno l., 73, 199–207. DOI: 10.1007/s10971-014-3515-1. 2. Ravi, S.S., Christena, L.R., SaiSubramanian, N. & Anthony, S.P. (2013). Green synthesized silver nanoparticles for selective colorimetric sensing of Hg 2+ in aqueous solution at wide pH range. Analyst . 138, 4370–4377. DOI: 10.1039/c3an00320e. 3. Li, L., Zhou, G., Cai, J

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Silver nanoparticles deposited on calcium hydrogenphosphate – silver phosphate matrix; biological activity of the composite

LITERATURE CITED 1. Li, W.R., Xie, X.B., Shi, Q.S., Zeng, H.Y., Ou-Yang, Y.S. & Chen, Y.B. (2010).Antibacterial activity and mechanism of silver nanoparticles on Escherichia coli. Appl. Microbiol. Biotechnol . 85, 1115–1122. DOI: 10.1007/s00253-009-2159-5. 2. Lubick, N. (2008). Nanosilver toxicity: ions, nanoparticles—or both? Environ. Sci. Technol . 42, 8617–8617. DOI: 10.1021/es8026314. 3. Leung, B.O., Jalilehvand, F., Mah, V., Parvez, M. & Wu, Q. (2013). Silver(I) Complex Formation with Cysteine, Penicillamine, and Glutathione. Inorg. Chem

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