Abstract
Self-collapse is a common problem encountered in fabrication of thin, soft epidermal microfluidic devices, due to the adhesion between top and bottom covers. Analytic models are developed for collapse of both long microfluidic channels and circular microfluidic reservoirs, with their covers modelled as plane-strain beam and thin plate, respectively. The analysis shows that a single parameter, the normalized work of adhesion, which combines the effects of channel/reservoir geometry, work of adhesion and bending stiffness of top and bottom channel/reservoir covers, controls different collapse states (no collapse, meta stable collapse and stable collapse) The established models agree well with the experimental observations, and provide guidelines to avoid the problem of self-collapse in design of epidermal microfluidic devices.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 18-23 |
| Number of pages | 6 |
| Journal | Extreme Mechanics Letters |
| Volume | 11 |
| DOIs | |
| State | Published - Feb 1 2017 |
Fingerprint
ASJC Scopus subject areas
- Bioengineering
- Chemical Engineering (miscellaneous)
- Engineering (miscellaneous)
- Mechanics of Materials
- Mechanical Engineering
Cite this
}
Collapse of microfluidic channels/reservoirs in thin, soft epidermal devices. / Xue, Yeguang; Kang, Daeshik; Ma, Yinji; Feng, Xue; Rogers, John A.; Huang, Yonggang.
In: Extreme Mechanics Letters, Vol. 11, 01.02.2017, p. 18-23.Research output: Contribution to journal › Article
TY - JOUR
T1 - Collapse of microfluidic channels/reservoirs in thin, soft epidermal devices
AU - Xue, Yeguang
AU - Kang, Daeshik
AU - Ma, Yinji
AU - Feng, Xue
AU - Rogers, John A.
AU - Huang, Yonggang
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Self-collapse is a common problem encountered in fabrication of thin, soft epidermal microfluidic devices, due to the adhesion between top and bottom covers. Analytic models are developed for collapse of both long microfluidic channels and circular microfluidic reservoirs, with their covers modelled as plane-strain beam and thin plate, respectively. The analysis shows that a single parameter, the normalized work of adhesion, which combines the effects of channel/reservoir geometry, work of adhesion and bending stiffness of top and bottom channel/reservoir covers, controls different collapse states (no collapse, meta stable collapse and stable collapse) The established models agree well with the experimental observations, and provide guidelines to avoid the problem of self-collapse in design of epidermal microfluidic devices.
AB - Self-collapse is a common problem encountered in fabrication of thin, soft epidermal microfluidic devices, due to the adhesion between top and bottom covers. Analytic models are developed for collapse of both long microfluidic channels and circular microfluidic reservoirs, with their covers modelled as plane-strain beam and thin plate, respectively. The analysis shows that a single parameter, the normalized work of adhesion, which combines the effects of channel/reservoir geometry, work of adhesion and bending stiffness of top and bottom channel/reservoir covers, controls different collapse states (no collapse, meta stable collapse and stable collapse) The established models agree well with the experimental observations, and provide guidelines to avoid the problem of self-collapse in design of epidermal microfluidic devices.
UR - http://www.scopus.com/inward/record.url?scp=85004024026&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85004024026&partnerID=8YFLogxK
U2 - 10.1016/j.eml.2016.11.012
DO - 10.1016/j.eml.2016.11.012
M3 - Article
VL - 11
SP - 18
EP - 23
JO - Extreme Mechanics Letters
JF - Extreme Mechanics Letters
SN - 2352-4316
ER -