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|a 10.1021/acs.langmuir.3c01999
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|a eng
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| 100 |
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|a Kajouri, Russell
|e verfasserin
|4 aut
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| 245 |
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|a Antidurotaxis Droplet Motion onto Gradient Brush Substrates
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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 Revised 04.10.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Durotaxis motion is a spectacular phenomenon manifesting itself by the autonomous motion of a nano-object between parts of a substrate with different stiffness. This motion usually takes place along a stiffness gradient from softer to stiffer parts of the substrate. Here, we propose a new design of a polymer brush substrate that demonstrates antidurotaxis droplet motion, that is, droplet motion from stiffer to softer parts of the substrate. By carrying out extensive molecular dynamics simulation of a coarse-grained model, we find that antidurotaxis is solely controlled by the gradient in the grafting density of the brush and is favorable for fluids with a strong attraction to the substrate (low surface energy). The driving force of the antidurotaxial motion is the minimization of the droplet-substrate interfacial energy, which is attributed to the penetration of the droplet into the brush. Thus, we anticipate that the proposed substrate design offers a new understanding and possibilities in the area of autonomous motion of droplets for applications in microfluidics, energy conservation, and biology
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|a Journal Article
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|a Theodorakis, Panagiotis E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Židek, Jan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Milchev, Andrey
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 39(2023), 43 vom: 31. Okt., Seite 15285-15296
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|g volume:39
|g year:2023
|g number:43
|g day:31
|g month:10
|g pages:15285-15296
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|u http://dx.doi.org/10.1021/acs.langmuir.3c01999
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