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|a 10.1021/acs.langmuir.2c03193
|2 doi
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|a eng
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| 100 |
1 |
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|a Zhang, Hao
|e verfasserin
|4 aut
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| 245 |
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|a Air/Water Interface Rheology Probed by Thermal Capillary Waves
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|c 2023
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 07.03.2023
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|a Date Revised 07.03.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Atomic force microscopy (AFM) was used to study the interfacial rheology of air/water interfaces by investigating the thermal capillary fluctuations of surfactant-loaded interfaces. These interfaces are formed by depositing an air bubble on a solid substrate immersed in a surfactant (Triton X-100) solution. An AFM cantilever, in contact with the north pole of the bubble, probes its thermal fluctuations (amplitude of the vibration versus the frequency). The measured power spectral density of the nanoscale thermal fluctuations presents several resonance peaks corresponding to the different vibration modes of the bubble. The measured damping versus the surfactant concentration of each mode presents a maximum and then decreases to a saturation value. The measurements are in good agreement with the model developed by Levich for the damping of capillary waves in the presence of surfactants. Our results show that the AFM cantilever in contact with a bubble is a powerful tool to probe the rheological properties of air/water interfaces
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|a Journal Article
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|a Zhang, Zaicheng
|e verfasserin
|4 aut
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1 |
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|a Grauby-Heywang, Christine
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kellay, Hamid
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Maali, Abdelhamid
|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), 9 vom: 07. März, Seite 3332-3340
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|g year:2023
|g number:9
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|g month:03
|g pages:3332-3340
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|u http://dx.doi.org/10.1021/acs.langmuir.2c03193
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