Search Results

21 - 30 of 1,012 items :

  • "nanoparticles" x
Clear All
Long-term (30 days) toxicity of NiO nanoparticles for adult zebrafish Danio rerio

References Baek YW, An YJ. (2011). Microbial toxicity of metal oxide nanoparticles (CuO, NiO, ZnO, and Sb2O3) to Escherichia coli, Bacillus subtilis, and Streptococcus aureus. Sci Total Environ 409: 1603-1608. Dunnick JK, Elwell MR, Radovsky AE, Benson JM, Hahn FF, Nikula KJ, Barr EB, Hobbs CH. (1995). Comparative carcinogenic eff ects of nickel subsulfi de, nickel oxide, or nickel sulfate hexahydrate chronic exposures in the lung. Cancer Res 55: 5251-5256. Gong N, Shao K, Feng W, Lin Z, Liang C, Sun Y. (2011

Open access
Single-Step Antimicrobial And Moisture Management Finishing Of Pc Fabric Using Zno Nanoparticles

, K., and Klibanov, A. M. (2003). Mechanism of bactericidal and fungicidal activities of textiles covalently modified with alkylated polyethylenimine. Biotechnology and Bioengineering, 83(2), 168-172. [5] Gao, Y. and Cranston, R. (2008). Recent advances in antimicrobial treatments of textiles. Textile Research Journal, 78(1), 60-72. [6] Dubas, S. T., Kumlangdudsana, P., and Potiyaraj, P. (2006). Layer-by-layer deposition of antimicrobial silver nanoparticles on textile fibers. Colloids and Surfaces A: Physicochemical and Engineering

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

References [1] R. Begum, Z.H. Farooqi, K. Naseem, F. Ali, M. Batool, J. Xiao, and A. Irfan, “Applications of UV/Vis spectroscopy in characterization and catalytic activity of noble metal nanoparticles fabricated in responsive polymer microgels: a review”, Crit. Rev. Anal. Chem. Vol. 48, 503-516, 2018. DOI:10.1080/10408347.2018.1451299 [2] J. Zheng, P.R. Nicovich, and R.M. Dickson, “High fluorescent Nobel-metal quantum dots”, Annu. Rev. Phys. Chem., Vol. 58, 409-431, 2007. DOI:10.1146/annurev.physchem.58.032806.104546 [3] C.M. Aikens, S.Z. Li

Open access
Study Of The Fluxset Magnetic Probe Speed–Sensitivity Developed For Detection Of Magnetic Nanoparticles In Surgery

References [1] HOOP, B.: The Infiltrated Radiopharmaceutical Injection: Risk Considerations, Journal of Nuclear Medicine 32 (1991), 890–891. [2] http://nanomagdye.u-strasbg.fr/ . [3] DAOU, T. J.—POURROY, G.—GRENECHE, J. M.—BERTIN, A.—FELDER-FLESCH, D.—BEGIN-COLIN, S.: Water Soluble Dendronized Iron Oxide Nanoparticles, Dalton Trans. (2009), 4442–4449. [4] GASPARICS, A.—VÉRTESY, G.—PÁVÓ, J.—CACCIOLA, M.: Probe for Detecting Weakly Interacting Magnetic Nanoparticles, International Journal of Applied Electromagnetics and Mechanics 39 No. 1–4 (2012

Open access
Phytotoxicity of colloidal solutions of stabilized and non-stabilized nanoparticles of essential metals and their oxides

References Abdel Latef AAH, Abu Alhmad MF, Abdelfattah KE (2017) The possible roles of priming with ZnO nanoparticles in mitigation of salinity stress in lupine ( Lupinus termis ) plants. J. Plant Growth Regul. 36: 60-70. Auffan M, Rose J, Bottero JY, Lowry GV, Jolive JP, Wiesner MR (2009) Towards a definition of inorganic nanoparticles from an environmental, health and safety perspective. Nat. Nanotechnol. 4: 634-641. Barbez E, Dünser K, Gaidora A, Lendl T, Busch W (2017) Apoplastic pH regulation in A. thaliana roots. Proc. Natl. Acad. Sci

Open access
Efficiency of Electret Polycarbonate Nonwovens in Respiratory Protection Against Nanoparticles

References [1] Savolainen K., Backman U., Brouwer D., Fadeel B., Fernandes T., Kuhlbusch T., Landsiedel R., Lynch I., Pylkkanen L.(2013), Nanosafety in Europe 2015-2025: Towards Safe and Sustainable Nanomaterials and Nanotechnology Innovations, EDITA, Helsinki 2013, ISBN 978-952-261-310-3. [2] Linkov I. et al.(2009), Emerging methods and tools for environmental risk assessment, decision-making, and policy for nanomaterials: summary of NATO Advanced Research Workshop, Journal of Nanoparticle Research 11 (2009) 513

Open access
Effect of Trifluralin, Zero-Valent Iron and Magnetite Nanoparticles on Growth of Micromycetes

References Auffan M., Rose J., Wiesner M., Bottero J., 2009. Chemical stability of metallic nanoparticles: a parameter controlling their potential cellular toxicity in vitro. Environmental Pollution, 157(4): 1127-1133. Barzan E., Mehrabian S., Irian S., 2014. Antimicrobial and genotoxicity effects of zero-valent iron nanoparticles. Jundishapur Journal of Microbiology, 7(5): e10054. Cao J., Feng Y., Lin X., Wang J., 2016. Arbuscular mycorrhizal fungi alleviate the negative effects of iron oxide nanoparticles on

Open access
Transformation mechanism of magnetite nanoparticles

Abstract

A simple oxidation synthesis route was developed for producing magnetite nanoparticles with controlled size and morphology. Investigation of oxidation process of the produced magnetite nanoparticles (NP) was performed after synthesis under different temperatures. The phase transformation of synthetic magnetite nanoparticles into maghemite and, henceforth, to hematite nanoparticles at different temperatures under dry oxidation has been studied. The natural magnetite particles were directly transformed to hematite particles at comparatively lower temperature, thus, maghemite phase was bypassed. The phase structures, morphologies and particle sizes of the produced magnetic nanoparticles have been investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectrometry (EDX) and BET surface area analysis.

Open access
Toxic effects of nanoparticles - differences and similarities with fine particles

References Aitken, R. J., Dankinm S. M., Tranm C. L., Donaldson, K., Stone V., Cumpson, P., Johnstone, J., Chaudhry, Q., Cash, S. (2007). REFNANO: Reference Materials for Engineered Nanoparticle Toxicology and Metrology. IOM, Final Report on Project CB01099: 30 pp www.iom-world.org/pubs/REFNANOReport.pdf Anonymous (2004). Health and Safety Executive (HSE) Hazard assessment toxicity. Health effects of particles produced for nanotechnologies. Document EH75/6. Anonymous (2006a

Open access
Effect of SiO2 nanoparticles on drought resistance in hawthorn seedlings

. 1991. Effect of silicate application on photosynthesis of rice plants. Japanese Society of Soil Science and Plant Nutrition 62: 248–251. McCutchan H., Shackel K.A. 1992. Stem-water Potential as a Sensitive Indicator of Water Stress in Prune Trees ( Prunus domestica L. cv. French). Journal of the American Society for Horticultural Science 117: 607–611. Monica R.C., Cremonini R. 2009. Nanoparticles and higher plants. Caryologia. 62:161–165. Nair R., Varghese S.H., Nair B.G., Maekawa T., Yoshida Y., Kumar D.S. 2010. Nanoparticulate material

Open access