Field
Value
Language
dc.contributor.author
Zandieh, Mohamad
datacite.creator.affiliationIdentifier
https://ror.org/01aff2v68
en_US
datacite.creator.affiliation
University of Waterloo
en_US
datacite.creator.nameIdentifier
https://orcid.org/0000-0001-9560-6184
en_US
dc.contributor.author
Hogan, Úna E.
datacite.creator.affiliationIdentifier
https://ror.org/01aff2v68
en_US
datacite.creator.affiliation
University of Waterloo
en_US
datacite.creator.nameIdentifier
en_US
dc.contributor.author
Smith, Rodney D.L.
datacite.creator.affiliationIdentifier
https://ror.org/01aff2v68
en_US
datacite.creator.affiliation
University of Waterloo
en_US
datacite.creator.nameIdentifier
https://orcid.org/0000-0003-1209-9653
en_US
dc.contributor.author
Liu, Juewen
datacite.creator.affiliationIdentifier
https://ror.org/01aff2v68
en_US
datacite.creator.affiliation
University of Waterloo
en_US
datacite.creator.nameIdentifier
https://orcid.org/0000-0001-5918-9336
en_US
dc.date.accessioned
2023-04-12T18:30:11Z
dc.date.available
2023-04-12T18:30:11Z
dc.date.issued
2023-04-12
dc.identifier.uri
https://www.frdr-dfdr.ca/repo/dataset/4f6aae1b-afaa-4522-a789-0f5f37122d69
dc.identifier.uri
https://doi.org/10.20383/102.0706
dc.description
Wettability of microplastics may change due to chemical or physical transformations at their surface. In this work, we studied the adsorption of spherical nucleic acids (SNAs) with a gold nanoparticle core and linear DNA of the same sequence to probe the wettability of microplastics. Soaking microplastics in water at room temperature for 3 months resulted in the enhancement of SNA adsorption capacity and affinity, whereas linear DNA adsorption was the same on the fresh and soaked microplastics. Drying of the soaked microplastics followed by rehydration decreased the adsorption of the SNA, suggesting that the effect of soaking was reversible and related to physical changes instead of chemical changes to the microplastics. Raman spectroscopy data also revealed no chemical transformations of the soaked microplastics. Heating of microplastics over a short period induced a similar effect to long-term soaking. We propose that soaking or heating removes air entrapped in the nanosized pores at the water-plastic interface, increasing the contact surface area of the SNA to afford stronger adsorption. However, such wetted porosity would not change the adsorption of linear DNA because of its much smaller size.
en_US
dc.publisher
Federated Research Data Repository / dépôt fédéré de données de recherche
dc.rights
Creative Commons Public Domain Dedication (CC0 1.0)
en_US
dc.rights.uri
https://creativecommons.org/publicdomain/zero/1.0/
en_US
dc.subject
microplastics
en_US
dc.subject
water treatment
en_US
dc.subject
Spherical DNA
en_US
dc.subject
Wettability
en_US
dc.subject
Adsorption
en_US
dc.title
Spherical DNA for Probing Wettability of Microplastics
en_US
globus.shared_endpoint.name
9347409e-b290-40c8-9b35-8bc3bae5d046
globus.shared_endpoint.path
/2/published/publication_701/
datacite.publicationYear
2023
datacite.date.Collected
/2023-03-10
datacite.resourceType
Dataset
en_US
datacite.relatedIdentifier.IsCitedBy
https://doi.org/10.1021/acs.langmuir.2c03417
datacite.fundingReference.funderIdentifier
https://ror.org/01h531d29
en_US
datacite.fundingReference.funderName
Natural Sciences and Engineering Research Council of Canada (NSERC)
en_US
datacite.fundingReference.awardNumber
ALLRP 558435ñ20
en_US
datacite.fundingReference.awardTitle
Alliance Grants - Plastics Science for a Cleaner Future program
en_US
datacite.fundingReference.funderIdentifier
en_US
datacite.fundingReference.funderName
Canada First Research Excellence Fund (CFREF)
en_US
datacite.fundingReference.awardNumber
en_US
datacite.fundingReference.awardTitle
Global Water Futures Program (GWF)
en_US
frdr.crdc.code
RDF1040106
en_US
frdr.crdc.group_en
Chemical sciences
en_US
frdr.crdc.class_en
Analytical chemistry
en_US
frdr.crdc.field_en
Sensor technology (chemical aspects)
en_US
frdr.crdc.group_fr
Sciences chimiques
fr_CA
frdr.crdc.class_fr
Chimie analytique
fr_CA
frdr.crdc.field_fr
Technologie des capteurs (aspects chimiques)
fr_CA
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