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Investigations of UV photolysis of PVP-capped silver nanoparticles in the presence and absence of dissolved organic carbon

  • Aimee R. Poda
  • Alan J. Kennedy
  • Michael F. CuddyEmail author
  • Anthony J. Bednar
Research Paper

Abstract

This study investigated the effect of UV irradiation on the characteristics and toxicity of 50 nm (nominal diameter) polyvinylpyrrolidone-capped silver nanoparticles (AgNPs) in the presence and absence of dissolved organic carbon (DOC). The photolysis resulted in a decrease in average particle size as measured by field flow fractionation interfaced with inductively coupled plasma mass spectrometry. The decrease in size was attributed to the photo-induced oxidation of the PVP and dissolution of metallic silver. Moreover, photolysis of the AgNPs in solutions containing DOC appeared to give rise to small nanoparticles (~5 nm) formed via reduction of dissolved silver ions. These results were consistent with photolysis of AgNO3 solutions initially devoid of nanoparticles. Thus, the carbon-containing constituents of DOC serve as reducing agents for Ag+, primarily under conditions of UV irradiation. The standard zooplankton model, Daphnia magna, indicated that the toxicity of nanosilver was significantly reduced when the AgNPs have been exposed to UV light. Observed toxicity was further reduced when AgNPs in DOC-containing solutions were exposed to UV. These results suggest that environmentally relevant conditions such as DOC and UV light are important mitigating factors that mediate the aquatic toxicity of AgNPs.

Keywords

Silver nanoparticles Photolysis Daphnia magna Field flow fractionation FFF-ICP-MS Dissolved organic carbon Toxicity Environmental relevance 

Notes

Acknowledgments

The use of trade, product, or firm names in this report is for descriptive purposes only and does not imply endorsement by the U.S. Government. The tests described and the resulting data presented herein, unless otherwise noted, were obtained from the research conducted under the Environmental Quality Technology Program of the United States Army Corps of Engineers by the USAERDC. Permission was granted by the Chief of Engineers to publish this information. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents. The authors also thank Frances Hill and Andrea Scott of the USACE for their editorial comments.

References

  1. Aiken GR, Hsu-Kim H, Ryan JN (2011) Influence of dissolved organic matter on the environmental fate of metals, nanoparticles, and colloids. Environ Sci Technol 45(8):3196–3201CrossRefGoogle Scholar
  2. Akaighe N, MacCuspie RI, Navarro DA, Aga DS, Banerjee S, Sohn M, Sharma VK (2011) Humic acid-induced silver nanoparticle formation under environmentally relevant conditions. Environ Sci Technol 45(9):3895–3901CrossRefGoogle Scholar
  3. Badawy AME, Luxton TP, Silva RG, Scheckel KG, Suidan MT, Tolaymat TM (2010) Impact of environmental conditions (pH, ionic strength, and electrolyte type) on the surface charge and aggregation of silver nanoparticles suspensions. Environ Sci Technol 44(4):1260–1266CrossRefGoogle Scholar
  4. Cheng Y, Yin L, Lin S, Wiesner M, Bernhardt E, Liu J (2011) Toxicity reduction of polymer-stabilized silver nanoparticles by sunlight. J Phys Chem C 115(11):4425–4432CrossRefGoogle Scholar
  5. Choi O, Clevenger TE, Deng B, Surampalli RY, Ross L Jr, Hu Z (2009) Role of sulfide and ligand strength in controlling nanosilver toxicity. Water Res 43(7):1879–1886CrossRefGoogle Scholar
  6. Darlington TK, Neigh AM, Spencer MT, Guyen OTN, Oldenburg SJ (2009) Nanoparticle characteristics affecting environmental fate and transport through soil. Environ Toxicol Chem 28(6):1191–1199CrossRefGoogle Scholar
  7. Das P, Williams CJ, Fulthorpe RR, Hoque ME, Metcalfe CD, Xenopoulos MA (2012) Changes in bacterial community structure after exposure to silver nanoparticles in natural waters. Environ Sci Technol 46(16):9120–9128CrossRefGoogle Scholar
  8. Fabrega J, Fawcett SR, Renshaw JC, Lead JR (2009) Silver nanoparticle impact on bacterial growth: effect of pH, concentration, and organic matter. Environ Sci Technol 43(19):7285–7290CrossRefGoogle Scholar
  9. Gao J, Youn S, Hovsepyan A, Llaneza VnL, Wang Y, Bitton G, Bonzongo J-CJ (2009) Dispersion and toxicity of selected manufactured nanomaterials in natural river water samples: effects of water chemical composition. Environ Sci Technol 43(9):3322–3328CrossRefGoogle Scholar
  10. Gorham J, MacCuspie R, Klein K, Fairbrother D, Holbrook R (2012) UV-induced photochemical transformations of citrate-capped silver nanoparticle suspensions. J Nanopart Res 14(10):1–16CrossRefGoogle Scholar
  11. Griffitt RJ, Luo J, Gao J, Bonzongo J-C, Barber DS (2008) Effects of particle composition and species on toxicity of metallic nanomaterials in aquatic organisms. Environ Toxicol Chem 27(9):1972–1978CrossRefGoogle Scholar
  12. Griffitt RJ, Hyndman K, Denslow ND, Barber DS (2009) Comparison of molecular and histological changes in zebrafish gills exposed to metallic nanoparticles. Toxicol Sci 107(2):404–415CrossRefGoogle Scholar
  13. Griffitt RJ, Brown-Peterson NJ, Savin DA, Manning CS, Boube I, Ryan RA, Brouwer M (2012) Effects of chronic nanoparticulate silver exposure to adult and juvenile sheepshead minnows (Cyprinodon variegatus). Environ Toxicol Chem 31(1):160–167CrossRefGoogle Scholar
  14. Han Y, Lupitskyy R, Chou T-M, Stafford CM, Du H, Sukhishvili S (2011) Effect of oxidation on surface-enhanced Raman scattering activity of silver nanoparticles: a quantitative correlation. Anal Chem 83(15):5873–5880CrossRefGoogle Scholar
  15. Horikoshi S, Hidaka H, Serpone N (2001) Photocatalyzed degradation of polymers in aqueous semiconductor suspensions: V. Photomineralization of lactam ring-pendant polyvinylpyrrolidone at titania/water interfaces. J Photochem Photobiol A 138(1):69–77CrossRefGoogle Scholar
  16. Kennedy AJ, Hull MS, Bednar AJ, Goss JD, Gunter JC, Bouldin JL, Vikesland PJ, Steevens JA (2010) Fractionating nanosilver: importance for determining toxicity to aquatic test organisms. Environ Sci Technol 44(24):9571–9577CrossRefGoogle Scholar
  17. Kennedy AJ, Chappell MA, Bednar AJ, Ryan AC, Laird JG, Stanley JK, Steevens JA (2012) Impact of organic carbon on the stability and toxicity of fresh and stored silver nanoparticles. Environ Sci Technol 46(19):10772–10780CrossRefGoogle Scholar
  18. Laban G, Nies L, Turco R, Bickham J, Sepulveda M (2010) The effects of silver nanoparticles on fathead minnow (Pimephales promelas) embryos. Ecotoxicology 19(1):185–195CrossRefGoogle Scholar
  19. Lee Y-J, Kim J, Oh J, Bae S, Lee S, Hong IS, Kim S-H (2012) Ion-release kinetics and ecotoxicity effects of silver nanoparticles. Environ Toxicol Chem 31(1):155–159CrossRefGoogle Scholar
  20. Li X, Lenhart JJ (2012) Aggregation and dissolution of silver nanoparticles in natural surface water. Environ Sci Technol 46(10):5378–5386CrossRefGoogle Scholar
  21. Li D, Lyon DY, Li Q, Alvarez PJJ (2008) Effect of soil sorption and aquatic natural organic matter on the antibacterial activity of a fullerene water suspension. Environ Toxicol Chem 27(9):1888–1894CrossRefGoogle Scholar
  22. Liu J, Hurt RH (2010) Ion release kinetics and particle persistence in aqueous nanosilver colloids. Environ Sci Technol 44(6):2169–2175CrossRefGoogle Scholar
  23. Marambio-Jones C, Hoek E (2010) A review of the antibacterial effects of silver nanomaterials and potential implications for human health and the environment. J Nanopart Res 12(5):1531–1551CrossRefGoogle Scholar
  24. McLaughlin J, Bonzongo J-CJ (2012) Effects of natural water chemistry on nanosilver behavior and toxicity to Ceriodaphnia dubia and Pseudokirchneriella subcapitata. Environ Toxicol Chem 31(1):168–175CrossRefGoogle Scholar
  25. Navarro E, Piccapietra F, Wagner B, Marconi F, Kaegi R, Odzak N, Sigg L, Behra R (2008) Toxicity of silver nanoparticles to Chlamydomonas reinhardtii. Environ Sci Technol 42(23):8959–8964CrossRefGoogle Scholar
  26. Poda AR, Bednar AJ, Kennedy AJ, Harmon A, Hull M, Mitrano DM, Ranville JF, Steevens J (2011) Characterization of silver nanoparticles using flow-field flow fractionation interfaced to inductively coupled plasma mass spectrometry. J Chromatogr A 1218(27):4219–4225CrossRefGoogle Scholar
  27. Sotiriou GA, Pratsinis SE (2010) Antibacterial activity of nanosilver ions and particles. Environ Sci Technol 44(14):5649–5654CrossRefGoogle Scholar
  28. The project on emerging nanotechnologies (2012). http://www.nanotechproject.org/inventories/consumer/analysis_draft/. Accessed 28 Sept 2012
  29. US Environmental Protection Agency (2002) Methods for measuring the acute toxicity of effluents and receiving waters to freshwater and marine organisms, EPA/812/R/02/012. Office of Water, Washington, DCGoogle Scholar
  30. Xiu Z-M, Ma J, Alvarez PJJ (2011) Differential effect of common ligands and molecular oxygen on antimicrobial activity of silver nanoparticles versus silver ions. Environ Sci Technol 45(20):9003–9008CrossRefGoogle Scholar
  31. Xiu Z-m, Zhang Q-b, Puppala HL, Colvin VL, Alvarez PJJ (2012) Negligible particle-specific antibacterial activity of silver nanoparticles. Nano Lett 12(8):4271–4275CrossRefGoogle Scholar
  32. Yang X, Gondikas AP, Marinakos SM, Auffan M, Liu J, Hsu-Kim H, Meyer JN (2011) Mechanism of silver nanoparticle toxicity is dependent on dissolved silver and surface coating in Caenorhabditis elegans. Environ Sci Technol 46(2):1119–1127CrossRefGoogle Scholar
  33. Yin Y, Liu J, Jiang G (2012) Sunlight-induced reduction of ionic Ag and Au to metallic nanoparticles by dissolved organic matter. ACS Nano 6(9):7910–7919CrossRefGoogle Scholar
  34. Zhao C-M, Wang W-X (2011) Comparison of acute and chronic toxicity of silver nanoparticles and silver nitrate to Daphnia magna. Environ Toxicol Chem 30(4):885–892CrossRefGoogle Scholar
  35. Zook J, Long S, Cleveland D, Geronimo C, MacCuspie R (2011) Measuring silver nanoparticle dissolution in complex biological and environmental matrices using UV–Visible absorbance. Anal Bioanal Chem 401(6):1993–2002CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht (outside the USA) 2013

Authors and Affiliations

  • Aimee R. Poda
    • 1
  • Alan J. Kennedy
    • 1
  • Michael F. Cuddy
    • 1
    Email author
  • Anthony J. Bednar
    • 1
  1. 1.Environmental LaboratoryU.S. Army Engineer Research and Development CenterVicksburgUSA

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