Interfacial Tension Driven Open Droplet Microfluidics

Abstract Droplet microfluidics enables compartmentalized reactions in small scales and is utilized for a variety of applications across chemical analysis, material science, and biology. While droplet microfluidics is a successful technology, barriers include high “activation energy” to develop custo...

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Main Authors: Jian Wei Khor, Ulri N. Lee, Jean Berthier, Erwin Berthier, Ashleigh B. Theberge
Format: Article
Language:English
Published: Wiley-VCH 2023-03-01
Series:Advanced Materials Interfaces
Subjects:
Online Access:https://doi.org/10.1002/admi.202202234
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author Jian Wei Khor
Ulri N. Lee
Jean Berthier
Erwin Berthier
Ashleigh B. Theberge
author_facet Jian Wei Khor
Ulri N. Lee
Jean Berthier
Erwin Berthier
Ashleigh B. Theberge
author_sort Jian Wei Khor
collection DOAJ
description Abstract Droplet microfluidics enables compartmentalized reactions in small scales and is utilized for a variety of applications across chemical analysis, material science, and biology. While droplet microfluidics is a successful technology, barriers include high “activation energy” to develop custom applications and complex peripheral equipment. These barriers limit the adoption of droplet microfluidics in labs or prototyping environments. This work demonstrates for the first time an open channel droplet microfluidic system that autonomously generates droplets at low capillary numbers. Hundreds of droplets are produced in a run using only an open channel, pipettes, and a commercially available carrier fluid. Conceptual applications that showcase the process of droplet generation, splitting, transport, incubation, mixing, and sorting are demonstrated. The open nature of the device enables the use of physical tools such as tweezers and styli to directly access the system; with this, a new method of droplet sorting and transfer unique to open systems is demonstrated. This platform offers enhanced usability, direct access to the droplet contents, easy manufacturability, compact footprint, and high customizability. This design is a first step in exploring the space of power‐free open droplet microfluidic systems and provides design rules for similar channel designs.
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spelling doaj.art-b1d8716c935d48029200d5c66a03b8e42023-07-26T01:36:19ZengWiley-VCHAdvanced Materials Interfaces2196-73502023-03-01107n/an/a10.1002/admi.202202234Interfacial Tension Driven Open Droplet MicrofluidicsJian Wei Khor0Ulri N. Lee1Jean Berthier2Erwin Berthier3Ashleigh B. Theberge4Department of Chemistry University of Washington Box 351700 Seattle WA 98195 USADepartment of Chemistry University of Washington Box 351700 Seattle WA 98195 USADepartment of Chemistry University of Washington Box 351700 Seattle WA 98195 USADepartment of Chemistry University of Washington Box 351700 Seattle WA 98195 USADepartment of Chemistry University of Washington Box 351700 Seattle WA 98195 USAAbstract Droplet microfluidics enables compartmentalized reactions in small scales and is utilized for a variety of applications across chemical analysis, material science, and biology. While droplet microfluidics is a successful technology, barriers include high “activation energy” to develop custom applications and complex peripheral equipment. These barriers limit the adoption of droplet microfluidics in labs or prototyping environments. This work demonstrates for the first time an open channel droplet microfluidic system that autonomously generates droplets at low capillary numbers. Hundreds of droplets are produced in a run using only an open channel, pipettes, and a commercially available carrier fluid. Conceptual applications that showcase the process of droplet generation, splitting, transport, incubation, mixing, and sorting are demonstrated. The open nature of the device enables the use of physical tools such as tweezers and styli to directly access the system; with this, a new method of droplet sorting and transfer unique to open systems is demonstrated. This platform offers enhanced usability, direct access to the droplet contents, easy manufacturability, compact footprint, and high customizability. This design is a first step in exploring the space of power‐free open droplet microfluidic systems and provides design rules for similar channel designs.https://doi.org/10.1002/admi.202202234droplet microfluidicsinterfacial tensionopen microfluidicssurface tensionwetting
spellingShingle Jian Wei Khor
Ulri N. Lee
Jean Berthier
Erwin Berthier
Ashleigh B. Theberge
Interfacial Tension Driven Open Droplet Microfluidics
Advanced Materials Interfaces
droplet microfluidics
interfacial tension
open microfluidics
surface tension
wetting
title Interfacial Tension Driven Open Droplet Microfluidics
title_full Interfacial Tension Driven Open Droplet Microfluidics
title_fullStr Interfacial Tension Driven Open Droplet Microfluidics
title_full_unstemmed Interfacial Tension Driven Open Droplet Microfluidics
title_short Interfacial Tension Driven Open Droplet Microfluidics
title_sort interfacial tension driven open droplet microfluidics
topic droplet microfluidics
interfacial tension
open microfluidics
surface tension
wetting
url https://doi.org/10.1002/admi.202202234
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AT ulrinlee interfacialtensiondrivenopendropletmicrofluidics
AT jeanberthier interfacialtensiondrivenopendropletmicrofluidics
AT erwinberthier interfacialtensiondrivenopendropletmicrofluidics
AT ashleighbtheberge interfacialtensiondrivenopendropletmicrofluidics