Engineering of Removing Sacrificial Materials in 3D-Printed Microfluidics
Three-dimensional (3D) printing will create a revolution in the field of microfluidics due to fabricating truly three-dimensional channels in a single step. During the 3D-printing process, sacrificial materials are usually needed to fulfill channels inside and support the printed chip outside. Remov...
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doaj-5739c1ad0bae4ebeafc23d8412461f3e2020-11-24T20:44:07ZengMDPI AGMicromachines2072-666X2018-06-019732710.3390/mi9070327mi9070327Engineering of Removing Sacrificial Materials in 3D-Printed MicrofluidicsPengju Yin0Bo Hu1Langlang Yi2Chun Xiao3Xu Cao4Lei Zhao5Hongyan Shi6School of Life Science and Technology, Xidian University, Xi’an 710126, ChinaSchool of Life Science and Technology, Xidian University, Xi’an 710126, ChinaSchool of Life Science and Technology, Xidian University, Xi’an 710126, ChinaSchool of Life Science and Technology, Xidian University, Xi’an 710126, ChinaSchool of Life Science and Technology, Xidian University, Xi’an 710126, ChinaSchool of Life Science and Technology, Xidian University, Xi’an 710126, ChinaSchool of Life Science and Technology, Xidian University, Xi’an 710126, ChinaThree-dimensional (3D) printing will create a revolution in the field of microfluidics due to fabricating truly three-dimensional channels in a single step. During the 3D-printing process, sacrificial materials are usually needed to fulfill channels inside and support the printed chip outside. Removing sacrificial materials after printing is obviously crucial for applying these 3D printed chips to microfluidics. However, there are few standard methods to address this issue. In this paper, engineering techniques of removing outer and inner sacrificial materials were studied. Meanwhile, quantification methods of removal efficiency for outer and inner sacrificial materials were proposed, respectively. For outer sacrificial materials, a hot bath in vegetable oil can remove 89.9% ± 0.1% of sacrificial materials, which is better than mechanics removal, hot oven heating, and an ethanol bath. For inner sacrificial materials, injecting 70 °C vegetable oil for 720 min is an optimized approach because of the uniformly high transmittance (93.8% ± 6.8%) and no obvious deformation. For the industrialization of microfluidics, the cost-effective removing time is around 10 min, which considers the balance between time cost and chip transmittance. The optimized approach and quantification methods presented in this paper show general engineering sacrificial materials removal techniques, which promote removing sacrificial materials from 3D-printed microfluidics chips and take 3D printing a step further in microfluidic applications.http://www.mdpi.com/2072-666X/9/7/3273D printingsacrificial materialsmicrofluidicsremoving efficiencyquantification |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pengju Yin Bo Hu Langlang Yi Chun Xiao Xu Cao Lei Zhao Hongyan Shi |
spellingShingle |
Pengju Yin Bo Hu Langlang Yi Chun Xiao Xu Cao Lei Zhao Hongyan Shi Engineering of Removing Sacrificial Materials in 3D-Printed Microfluidics Micromachines 3D printing sacrificial materials microfluidics removing efficiency quantification |
author_facet |
Pengju Yin Bo Hu Langlang Yi Chun Xiao Xu Cao Lei Zhao Hongyan Shi |
author_sort |
Pengju Yin |
title |
Engineering of Removing Sacrificial Materials in 3D-Printed Microfluidics |
title_short |
Engineering of Removing Sacrificial Materials in 3D-Printed Microfluidics |
title_full |
Engineering of Removing Sacrificial Materials in 3D-Printed Microfluidics |
title_fullStr |
Engineering of Removing Sacrificial Materials in 3D-Printed Microfluidics |
title_full_unstemmed |
Engineering of Removing Sacrificial Materials in 3D-Printed Microfluidics |
title_sort |
engineering of removing sacrificial materials in 3d-printed microfluidics |
publisher |
MDPI AG |
series |
Micromachines |
issn |
2072-666X |
publishDate |
2018-06-01 |
description |
Three-dimensional (3D) printing will create a revolution in the field of microfluidics due to fabricating truly three-dimensional channels in a single step. During the 3D-printing process, sacrificial materials are usually needed to fulfill channels inside and support the printed chip outside. Removing sacrificial materials after printing is obviously crucial for applying these 3D printed chips to microfluidics. However, there are few standard methods to address this issue. In this paper, engineering techniques of removing outer and inner sacrificial materials were studied. Meanwhile, quantification methods of removal efficiency for outer and inner sacrificial materials were proposed, respectively. For outer sacrificial materials, a hot bath in vegetable oil can remove 89.9% ± 0.1% of sacrificial materials, which is better than mechanics removal, hot oven heating, and an ethanol bath. For inner sacrificial materials, injecting 70 °C vegetable oil for 720 min is an optimized approach because of the uniformly high transmittance (93.8% ± 6.8%) and no obvious deformation. For the industrialization of microfluidics, the cost-effective removing time is around 10 min, which considers the balance between time cost and chip transmittance. The optimized approach and quantification methods presented in this paper show general engineering sacrificial materials removal techniques, which promote removing sacrificial materials from 3D-printed microfluidics chips and take 3D printing a step further in microfluidic applications. |
topic |
3D printing sacrificial materials microfluidics removing efficiency quantification |
url |
http://www.mdpi.com/2072-666X/9/7/327 |
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