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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c03417
|2 doi
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|a pubmed24n1183.xml
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|a (NLM)36988268
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|a DE-627
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|e rakwb
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|a eng
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|a Zandieh, Mohamad
|e verfasserin
|4 aut
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|a Spherical DNA for Probing Wettability of Microplastics
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 12.04.2023
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|a Date Revised 12.04.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a 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 of 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
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Microplastics
|2 NLM
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|a Plastics
|2 NLM
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|a Gold
|2 NLM
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|a 7440-57-5
|2 NLM
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|a DNA
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|a 9007-49-2
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|a Water
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|a 059QF0KO0R
|2 NLM
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|a Water Pollutants, Chemical
|2 NLM
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|a Hogan, Úna E
|e verfasserin
|4 aut
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|a Smith, Rodney D L
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Juewen
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 39(2023), 14 vom: 11. Apr., Seite 4959-4966
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:39
|g year:2023
|g number:14
|g day:11
|g month:04
|g pages:4959-4966
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|u http://dx.doi.org/10.1021/acs.langmuir.2c03417
|3 Volltext
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