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240215s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c03963
|2 doi
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|a eng
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|a Dutta, Nilanjan
|e verfasserin
|4 aut
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|a Understanding the Role of Surface Charge on Nanobubble Capillary Bridging during Particle-Particle Interaction
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|c 2024
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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 Revised 27.02.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The interactions between particles due to long-range hydrophobic forces have been extensively investigated. The hydrophobic force is likely a capillary force that arises from the formation of capillary bridges due to the merging of nanobubbles. In this study, we aim to investigate the impact of the nanobubble surface charge on the capillary bridge and, subsequently, the interaction between particles. The surface charge of the nanobubbles was altered in the presence of various surfactants (cationic, anionic, and nonionic) and salts (mono-, di-, and trivalent). The particle-particle interaction was quantified by measuring the aggregate size of the hydrophobized glass particles. Both experimental and theoretical findings confirm that the interaction between particles was enhanced when the surface potential of the nanobubble was around the neutral regime. This is probably because, when the surface potential was close to neutral, the interaction between two surface-deposited nanobubbles dominated over electrostatic repulsion, which was more conducive to the formation of the nanobubble capillary bridge. The estimation of the constrained Gibbs potential also showed the capillary bridge to be more stable when surface charge density along the bridge gas-liquid interface was minimal
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|a Journal Article
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|a Mitra, Subhasish
|e verfasserin
|4 aut
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|a Nirmalkar, Neelkanth
|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 40(2024), 8 vom: 27. Feb., Seite 4475-4488
|w (DE-627)NLM098181009
|x 1520-5827
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|g volume:40
|g year:2024
|g number:8
|g day:27
|g month:02
|g pages:4475-4488
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|u http://dx.doi.org/10.1021/acs.langmuir.3c03963
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