dc.contributor.author |
Lehutso, Raisibe F
|
|
dc.contributor.author |
Tancu, Yolanda
|
|
dc.contributor.author |
Maity, Arjun
|
|
dc.contributor.author |
Thwala, Melusi
|
|
dc.date.accessioned |
2021-03-29T10:09:25Z |
|
dc.date.available |
2021-03-29T10:09:25Z |
|
dc.date.issued |
2021-03 |
|
dc.identifier.citation |
Lehutso, R.F., Tancu, Y., Maity, A. & Thwala, M. 2021. Characterisation of engineered nanomaterials in nano-enabled products exhibiting priority environmental exposure. <i>Molecules, 26(5).</i> http://hdl.handle.net/10204/11929 |
en_ZA |
dc.identifier.issn |
1420-3049 |
|
dc.identifier.uri |
http://hdl.handle.net/10204/11929
|
|
dc.description.abstract |
Analytical limitations have constrained the determination of nanopollution character from real-world sources such as nano-enabled products (NEPs), thus hindering the development of environmental safety guidelines for engineered nanomaterials (ENMs). This study examined the properties of ENMs in 18 commercial products: sunscreens, personal care products, clothing, and paints—products exhibiting medium to a high potential for environmental nanopollution. It was found that 17 of the products contained ENMs; 9, 3, 3, and 2 were incorporated with nTiO2, nAg, binaries of nZnO + nTiO2, and nTiO2 + nAg, respectively. Commonly, the nTiO2 were elongated or angular, whereas nAg and nZnO were near-spherical and angular in morphology, respectively. The size ranges (width × length) were 7–48 × 14–200, 34–35 × 37–38, and 18–28 nm for nTiO2, nZnO, and nAg respectively. All ENMs were negatively charged. The total concentration of Ti, Zn, and Ag in the NEPs were 2.3 × 10-4–4.3%, 3.4–4.3%, and 1.0 × 10-4–11.3 × 10-3%, respectively. The study determined some key ENM characteristics required for environmental risk assessment; however, challenges persist regarding the accurate determination of the concentration in NEPs. Overall, the study confirmed NEPs as actual sources of nanopollution; hence, scenario-specific efforts are recommended to quantify their loads into water resources. |
en_US |
dc.format |
Fulltext |
en_US |
dc.language.iso |
en |
en_US |
dc.relation.uri |
https://doi.org/10.3390/molecules26051370 |
en_US |
dc.relation.uri |
https://www.mdpi.com/1420-3049/26/5/1370 |
en_US |
dc.source |
Molecules, 26(5) |
en_US |
dc.subject |
Nano-enabled products |
en_US |
dc.subject |
Engineered nanomaterials |
en_US |
dc.subject |
Exposure potential |
en_US |
dc.subject |
Characterisation |
en_US |
dc.title |
Characterisation of engineered nanomaterials in nano-enabled products exhibiting priority environmental exposure |
en_US |
dc.type |
Article |
en_US |
dc.description.pages |
21pp |
en_US |
dc.description.note |
Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/) |
en_US |
dc.description.cluster |
Smart Places |
en_US |
dc.description.cluster |
Chemicals |
|
dc.description.impactarea |
Integr Water Anal & Solutions |
en_US |
dc.description.impactarea |
Advanced Functional Materials |
|
dc.identifier.apacitation |
Lehutso, R. F., Tancu, Y., Maity, A., & Thwala, M. (2021). Characterisation of engineered nanomaterials in nano-enabled products exhibiting priority environmental exposure. <i>Molecules, 26(5)</i>, http://hdl.handle.net/10204/11929 |
en_ZA |
dc.identifier.chicagocitation |
Lehutso, Raisibe F, Yolanda Tancu, Arjun Maity, and Melusi Thwala "Characterisation of engineered nanomaterials in nano-enabled products exhibiting priority environmental exposure." <i>Molecules, 26(5)</i> (2021) http://hdl.handle.net/10204/11929 |
en_ZA |
dc.identifier.vancouvercitation |
Lehutso RF, Tancu Y, Maity A, Thwala M. Characterisation of engineered nanomaterials in nano-enabled products exhibiting priority environmental exposure. Molecules, 26(5). 2021; http://hdl.handle.net/10204/11929. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Lehutso, Raisibe F
AU - Tancu, Yolanda
AU - Maity, Arjun
AU - Thwala, Melusi
AB - Analytical limitations have constrained the determination of nanopollution character from real-world sources such as nano-enabled products (NEPs), thus hindering the development of environmental safety guidelines for engineered nanomaterials (ENMs). This study examined the properties of ENMs in 18 commercial products: sunscreens, personal care products, clothing, and paints—products exhibiting medium to a high potential for environmental nanopollution. It was found that 17 of the products contained ENMs; 9, 3, 3, and 2 were incorporated with nTiO2, nAg, binaries of nZnO + nTiO2, and nTiO2 + nAg, respectively. Commonly, the nTiO2 were elongated or angular, whereas nAg and nZnO were near-spherical and angular in morphology, respectively. The size ranges (width × length) were 7–48 × 14–200, 34–35 × 37–38, and 18–28 nm for nTiO2, nZnO, and nAg respectively. All ENMs were negatively charged. The total concentration of Ti, Zn, and Ag in the NEPs were 2.3 × 10-4–4.3%, 3.4–4.3%, and 1.0 × 10-4–11.3 × 10-3%, respectively. The study determined some key ENM characteristics required for environmental risk assessment; however, challenges persist regarding the accurate determination of the concentration in NEPs. Overall, the study confirmed NEPs as actual sources of nanopollution; hence, scenario-specific efforts are recommended to quantify their loads into water resources.
DA - 2021-03
DB - ResearchSpace
DP - CSIR
J1 - Molecules, 26(5)
KW - Nano-enabled products
KW - Engineered nanomaterials
KW - Exposure potential
KW - Characterisation
LK - https://researchspace.csir.co.za
PY - 2021
SM - 1420-3049
T1 - Characterisation of engineered nanomaterials in nano-enabled products exhibiting priority environmental exposure
TI - Characterisation of engineered nanomaterials in nano-enabled products exhibiting priority environmental exposure
UR - http://hdl.handle.net/10204/11929
ER - |
en_ZA |
dc.identifier.worklist |
24363 |
en_US |