From zinc oxide nanoparticles to microflowers: A study of growth kinetics and biocidal activity

Ramani, Meghana; Ponnusamy, S.; Muthamizhchelvan, C.

doi:10.1016/j.msec.2012.07.011

Cited by 54 publications

(30 citation statements)

References 51 publications

(47 reference statements)

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“…In aqueous solutions, 50-60 nm is most likely to be endocytosed within a relatively short period. Also, nanoparticle could be transferred across the cell membrane and distributed to the cytoplasmic areas [71].…”

Section: The Btem Analysismentioning

confidence: 99%

Lipid-coated ZnO nanoparticles synthesis, characterization and cytotoxicity studies in cancer cell

et al. 2020

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ZnO nanoparticles are widely used in biological, chemical, and medical fields, but their toxicity impedes their wide application. In this study, pristine ZnO NPs (~ 7 nm; ~ 18 nm; ~ 49 nm) and lipid-coated ZnO NPs (~ 13 nm; ~ 22 nm; ~ 52 nm) with different morphologies were prepared by chemical method and characterized by TEM, XRD, HRTEM, FTIR, and DLS. Our results showed that the lipid-coated ZnO NPs (~ 13 nm; ~ 22 nm; ~ 52 nm) groups improved the colloidal stability, prevented the aggregation and dissolution of nanocrystal particles in the solution, inhibited the dissolution of ZnO NPs into Zn 2+ cations, and reduced cytotoxicity more efficiently than the pristine ZnO NPs (~ 7 nm; ~ 18 nm; ~ 49 nm). Compared to the lipid-coated ZnO NPs, pristine ZnO NPs (~ 7 nm; ~ 18 nm; ~ 49 nm) could dose-dependently destroy the cells at low concentrations. At the same concentration, ZnO NPs (~ 7 nm) exhibited the highest cytotoxicity. These results could provide a basis for the toxicological study of the nanoparticles and direct future investigations for preventing strong aggregation, reducing the toxic effects of lipid-bilayer and promoting the uptake of nanoparticles by HeLa cells efficiently.

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Section: The Btem Analysismentioning

confidence: 99%

Lipid-coated ZnO nanoparticles synthesis, characterization and cytotoxicity studies in cancer cell

et al. 2020

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“…Regarding pharmaceutical and cosmetics uses, ZnO is applied and wellknown for its use in the sunscreen, facial powders, and body lotion products. The size of nano ZnO ranges from 1 to 100 nm and the crystal morphology varies depending upon synthesis method (Jalal et al, 2010;Ma et al, 2013;Ramani et al, 2012). The shape of ZnO NPs is related to the surface area, which affects the general properties of ZnO NPs, including its antimicrobial activity (Sirelkhatim et al, 2015).…”

Section: Structure and Propertiesmentioning

confidence: 99%

Investigating the synergistic antimicrobial effect of carvacrol and zinc oxide nanoparticles against Campylobacter jejuni

Windiasti

Feng

et al. 2019

Food Control

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“…Zinc oxide nanoparticles (ZnO-NPs) are used in electronic and optical applications as sensors, semiconductors, and lasers (Aruoja et al 2009, Petosa et al 2012, Jiang et al 2010, Ramani et al 2012. ZnO nanostructures are widely applied in cosmetics, and serve as pigments, UV fi lters in sunscreens, and dermatological products (Aruoja et al 2009, Zhou and Keller 2010, Jiang et al 2012a).…”

Section: Presence Of Nanomaterials In the Environmentmentioning

confidence: 99%

“…Smaller ZnO-NPs and agglomerates have a larger antibacterial effect than larger ones ). The study (Ramani et al 2012) shows that ZnO-NPs, which causes 99% growth inhibition, can be an antibacterial agent against S. aureus, B. subtilis, Streptococcus pneumoniae, Streptococcus agalactiae, K. pneumoniae, Salmonella typhi, E. coli, and P. aeruginosa. ZnO-NPs demonstrates bacteriostatic properties in the presence of both the gram-negative and gram-positive bacteria (Narayanan et al 2012).…”

Section: Metal Oxide Nanoparticles Zinc Oxide Nanoparticlesmentioning

confidence: 99%

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

Krzyżewska¹,

Kyzioł-Komosińska²,

Rosik-Dulewska³

et al. 2016

Archives of Environmental Protection

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Abstract:The aim of this paper is to present characteristics, toxicity and environmental behavior of nanoparticles (NPs) (silver, copper, gold, zinc oxide, titanium dioxide, iron oxide) that most frequently occur in consumer products. In addition, NPs are addressed as the new aquatic environmental pollutant of the 21 st century. NPs are adsorbed onto particles in the aquatic systems (clay minerals, fulvic and humic acids), or they can adsorb environmental pollutants (heavy metal ions, organic compounds). Nanosilver (nAg) is released from consumer products into the aquatic environment. It can threaten aquatic organisms with high toxicity. Interestingly, copper nanoparticles (Cu-NPs) demonstrate higher toxicity to bacteria and aquatic microorganisms than those of nanosilver nAg. Their small size and reactivity can cause penetration into the tissues and interfere with the metabolic systems of living organisms and bacterial biogeochemical cycles. The behavior of NPs is not fully recognized. Nevertheless, it is known that NPs can agglomerate, bind with ions (chlorides, sulphates, phosphates) or organic compounds. They can also be bound or immobilized by slurry. The NPs behavior depends on process conditions, i.e. pH, ionic strength, temperature and presence of other chemical compounds. It is unknown how NPs behave in the aquatic environment. Therefore, the research on this problem should be carried out under different process conditions. As for the toxicity, it is important to understand where the differences in the research results come from. As NPs have an impact on not only aquatic organisms but also human health and life, it is necessary to recognize their toxic doses and know standards/regulations that determine the permissible concentrations of NPs in the environment.Unauthenticated Download Date | 5/12/18 7:36 AM

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From zinc oxide nanoparticles to microflowers: A study of growth kinetics and biocidal activity

Cited by 54 publications

References 51 publications

Lipid-coated ZnO nanoparticles synthesis, characterization and cytotoxicity studies in cancer cell

Lipid-coated ZnO nanoparticles synthesis, characterization and cytotoxicity studies in cancer cell

Investigating the synergistic antimicrobial effect of carvacrol and zinc oxide nanoparticles against Campylobacter jejuni

Inorganic nanomaterials in the aquatic environment: behavior, toxicity, and interaction with environmental elements

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