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Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions

The use of diverse metal nanoparticles (MNPs) in a wide range of commercial products has led to their co-existence in the aqueous environment. The current study explores the dispersion and aggregation fate of five prominent MNPs (silver, copper, iron, nickel, and titanium), in both their individual...

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Autores principales: Bathi, Jejal Reddy, Roy, Shuvashish, Tareq, Syed, Potts, Gretchen E., Palchoudhury, Soubantika, Sweck, Samantha O., Gadhamshetty, Venkataramana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9572943/
https://www.ncbi.nlm.nih.gov/pubmed/36234074
http://dx.doi.org/10.3390/ma15196733
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author Bathi, Jejal Reddy
Roy, Shuvashish
Tareq, Syed
Potts, Gretchen E.
Palchoudhury, Soubantika
Sweck, Samantha O.
Gadhamshetty, Venkataramana
author_facet Bathi, Jejal Reddy
Roy, Shuvashish
Tareq, Syed
Potts, Gretchen E.
Palchoudhury, Soubantika
Sweck, Samantha O.
Gadhamshetty, Venkataramana
author_sort Bathi, Jejal Reddy
collection PubMed
description The use of diverse metal nanoparticles (MNPs) in a wide range of commercial products has led to their co-existence in the aqueous environment. The current study explores the dispersion and aggregation fate of five prominent MNPs (silver, copper, iron, nickel, and titanium), in both their individual and co-existing forms. We address a knowledge gap regarding their environmental fate under turbulent condition akin to flowing rivers. We present tandem analytical techniques based on dynamic light scattering, ultraviolet-visible spectroscopy, and inductively coupled plasma atomic emission spectroscopy for discerning their dispersion behavior under residence times of turbulence, ranging from 0.25 to 4 h. The MNPs displayed a multimodal trend for dispersion and aggregation behavior with suspension time in aqueous samples. The extent of dispersion was variable and depended upon intrinsic properties of MNPs. However, the co-existing MNPs displayed a dominant hetero-aggregation effect, independent of the residence times. Further research with use of real-world environmental samples can provide additional insights on the effects of sample chemistry on MNPs fate.
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spelling pubmed-95729432022-10-17 Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions Bathi, Jejal Reddy Roy, Shuvashish Tareq, Syed Potts, Gretchen E. Palchoudhury, Soubantika Sweck, Samantha O. Gadhamshetty, Venkataramana Materials (Basel) Article The use of diverse metal nanoparticles (MNPs) in a wide range of commercial products has led to their co-existence in the aqueous environment. The current study explores the dispersion and aggregation fate of five prominent MNPs (silver, copper, iron, nickel, and titanium), in both their individual and co-existing forms. We address a knowledge gap regarding their environmental fate under turbulent condition akin to flowing rivers. We present tandem analytical techniques based on dynamic light scattering, ultraviolet-visible spectroscopy, and inductively coupled plasma atomic emission spectroscopy for discerning their dispersion behavior under residence times of turbulence, ranging from 0.25 to 4 h. The MNPs displayed a multimodal trend for dispersion and aggregation behavior with suspension time in aqueous samples. The extent of dispersion was variable and depended upon intrinsic properties of MNPs. However, the co-existing MNPs displayed a dominant hetero-aggregation effect, independent of the residence times. Further research with use of real-world environmental samples can provide additional insights on the effects of sample chemistry on MNPs fate. MDPI 2022-09-28 /pmc/articles/PMC9572943/ /pubmed/36234074 http://dx.doi.org/10.3390/ma15196733 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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/).
spellingShingle Article
Bathi, Jejal Reddy
Roy, Shuvashish
Tareq, Syed
Potts, Gretchen E.
Palchoudhury, Soubantika
Sweck, Samantha O.
Gadhamshetty, Venkataramana
Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions
title Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions
title_full Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions
title_fullStr Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions
title_full_unstemmed Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions
title_short Dispersion and Aggregation Fate of Individual and Co-Existing Metal Nanoparticles under Environmental Aqueous Suspension Conditions
title_sort dispersion and aggregation fate of individual and co-existing metal nanoparticles under environmental aqueous suspension conditions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9572943/
https://www.ncbi.nlm.nih.gov/pubmed/36234074
http://dx.doi.org/10.3390/ma15196733
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