dc.contributor.author |
Thwala, Melusi
|
|
dc.contributor.author |
Klaine, Stephen J.
|
|
dc.contributor.author |
Musee, Ndeke
|
|
dc.date.accessioned |
2016-10-13T08:38:38Z |
|
dc.date.issued |
2016-07 |
|
dc.description.abstract |
The rising potential for the release of engineered nanoparticles (ENPs) into aquatic environments requires evaluation of risks to protect ecological health. The present review examines knowledge pertaining to the interactions of metal-based ENPs with aquatic higher plants, identifies information gaps, and raises considerations for future research to advance knowledge on the subject. The discussion focuses on ENPs' bioaccessibility; uptake, adsorption, translocation, and bioaccumulation; and toxicity effects on aquatic higher plants. An information deficit surrounds the uptake of ENPs and associated dynamics, because the influence of ENP characteristics and water quality conditions has not been well documented. Dissolution appears to be a key mechanism driving bioaccumulation of ENPs, whereas nanoparticulates often adsorb to plant surfaces with minimal internalization. However, few reports document the internalization of ENPs by plants; thus, the role of nanoparticulates' internalization in bioaccumulation and toxicity remains unclear, requiring further investigation. The toxicities of metal-based ENPs mainly have been associated with dissolution as a predominant mechanism, although nano toxicity has also been reported. To advance knowledge in this domain, future investigations need to integrate the influence of ENP characteristics and water physicochemical parameters, as their interplay determines ENP bioaccessibility and influences their risk to health of aquatic higher plants. Furthermore, harmonization of test protocols is recommended for fast tracking the generation of comparable data. |
en_ZA |
dc.description.department |
Chemical Engineering |
en_ZA |
dc.description.embargo |
2017-07-31 |
|
dc.description.librarian |
hb2016 |
en_ZA |
dc.description.sponsorship |
M.Thwala acknowledges the UNESCO Keizo Obuchi Fellowship 2014 undertaken at
Environmental Toxicology Unit, Clemson University (SC, USA) and the Thuthuka Programme of the National Research Foundation (South Africa). Sponsorship of the present work by the CSIR under the project ―Nanotechnology Risk Assessment in Aquatic Systems: Experimental and Modelling Approaches‖ is also acknowledged. |
en_ZA |
dc.description.uri |
http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1552-8618 |
en_ZA |
dc.identifier.citation |
Thwala, M, Klaine, SJ & Musee, N 2016, 'Interactions of metal-based engineered nanoparticles with aquatic higher plants : a review of the state of current knowledge', Environmental Toxicology and Chemistry, vol. 35, no. 7, pp. 1677-1694. |
en_ZA |
dc.identifier.issn |
0730-7268 (print) |
|
dc.identifier.issn |
1552-8618 (online) |
|
dc.identifier.other |
10.1002/etc.3364 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/57146 |
|
dc.language.iso |
en |
en_ZA |
dc.publisher |
Wiley |
en_ZA |
dc.rights |
© 2016 SETAC. This is the pre-peer reviewed version of the following article : Interactions of metal-based engineered nanoparticles with aquatic higher plants : a review of the state of current knowledge in Environmental Toxicology and Chemistry, vol. 35, no. 7, pp. 1677-1694, 2016. doi : 10.1002/etc.3364 which has been published in final form at : http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1552-8618. |
en_ZA |
dc.subject |
Aquatic plants |
en_ZA |
dc.subject |
Bioaccessibility |
en_ZA |
dc.subject |
Bioaccumulation |
en_ZA |
dc.subject |
Nanoecotoxicology |
en_ZA |
dc.subject |
Engineered nanoparticles (ENPs) |
en_ZA |
dc.title |
Interactions of metal-based engineered nanoparticles with aquatic higher plants : a review of the state of current knowledge |
en_ZA |
dc.type |
Postprint Article |
en_ZA |