ArticleLangmuir : the ACS journal of surfaces and colloids2023
Antidurotaxis Droplet Motion onto Gradient Brush Substrates.
Article in Langmuir : the ACS journal of surfaces and colloids, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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Who cites it
2 citing papers in PubMed.
- Durotaxis and Antidurotaxis Droplet Motion onto Gradient Gel-Substrates.Langmuir : the ACS journal of surfaces and colloids · 2024Article
- Dynamics of Droplets Moving on Lubricated Polymer Brushes.Langmuir : the ACS journal of surfaces and colloids · 2024Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
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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Registered trials
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