Dynamic manipulation of droplets using mechanically tunable microtextured chemical gradients

Materials and strategies applicable to the dynamic transport of microdroplets are relevant to surface fluidics, self-cleaning materials, thermal management systems, and analytical devices. Techniques based on electrowetting, topographic micropatterns, and thermal/chemical gradients have advanced con...

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Published in:Nature communications 2021-05, Vol.12 (1), p.3114-3114, Article 3114
Main Authors: Mazaltarim, Ali J., Bowen, John J., Taylor, Jay M., Morin, Stephen A.
Format: Article
Language:English
Subjects:
14/19
14/63
639/301/923/1030
639/638/298/923/1030
639/638/298/923/614
Approximation
Cleaning systems
Contact angle
Droplets
Elastomers
Fabrication
Fluid dynamics
Fluidics
Humanities and Social Sciences
Management systems
Micropatterning
multidisciplinary
Science
Science (multidisciplinary)
Silicones
Surface chemistry
Thermal management
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creator Mazaltarim, Ali J.
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description Materials and strategies applicable to the dynamic transport of microdroplets are relevant to surface fluidics, self-cleaning materials, thermal management systems, and analytical devices. Techniques based on electrowetting, topographic micropatterns, and thermal/chemical gradients have advanced considerably, but dynamic microdroplet transport remains a challenge. This manuscript reports the fabrication of mechano-tunable, microtextured chemical gradients on elastomer films and their use in controlled microdroplet transport. Specifically, discreet mechanical deformations of these films enabled dynamic tuning of the microtextures and thus transport along surface-chemical gradients. The interplay between the driving force of the chemical gradient and the microtopography was characterized, facilitating accurate prediction of the conditions (droplet radius and roughness) which supported transport. In this work, the use of microtextured surface chemical gradients in mechano-adaptive materials with microdroplet manipulation functionality was highlighted. Techniques to alter the surface of materials to enable transport of fluids have advanced considerably, but dynamic microdroplet transport remains a challenge. Here, the authors report the fabrication of microtextured chemical gradients on elastomer films and their use in controlled microdroplet transport.
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subjects 14/19
14/63
639/301/923/1030
639/638/298/923/1030
639/638/298/923/614
Approximation
Cleaning systems
Contact angle
Droplets
Elastomers
Fabrication
Fluid dynamics
Fluidics
Humanities and Social Sciences
Management systems
Micropatterning
multidisciplinary
Science
Science (multidisciplinary)
Silicones
Surface chemistry
Thermal management
title Dynamic manipulation of droplets using mechanically tunable microtextured chemical gradients
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