Wicking in Paper Strips under Consideration of Liquid Absorption Capacity
Paper-based microfluidic devices have the potential of being a low-cost platform for diagnostic devices. Electrical circuit analogy (ECA) model has been used to model the wicking process in paper-based microfluidic devices. However, material characteristics such as absorption capacity cannot be incl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
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| Series: | Chemosensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2227-9040/8/3/65 |
| _version_ | 1797559895917068288 |
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| author | Surasak Kasetsirikul Muhammad J. A. Shiddiky Nam-Trung Nguyen |
| author_facet | Surasak Kasetsirikul Muhammad J. A. Shiddiky Nam-Trung Nguyen |
| author_sort | Surasak Kasetsirikul |
| collection | DOAJ |
| description | Paper-based microfluidic devices have the potential of being a low-cost platform for diagnostic devices. Electrical circuit analogy (ECA) model has been used to model the wicking process in paper-based microfluidic devices. However, material characteristics such as absorption capacity cannot be included in the previous ECA models. This paper proposes a new model to describe the wicking process with liquid absorption in a paper strip. We observed that the fluid continues to flow in a paper strip, even after the fluid reservoir has been removed. This phenomenon is caused by the ability of the paper to store liquid in its matrix. The model presented in this paper is derived from the analogy to the current response of an electric circuit with a capacitance. All coefficients in the model are fitted with data of capillary rise experiments and compared with direct measurement of the absorption capacity. The theoretical data of the model agrees well with experimental data and the conventional Washburn model. Considering liquid absorption capacity as a capacitance helps to explain the relationship between material characteristics and the wicking mechanism. |
| first_indexed | 2024-03-10T17:51:41Z |
| format | Article |
| id | doaj.art-47a27f47a55b4ee7a827cfae68ff4107 |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-10T17:51:41Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-47a27f47a55b4ee7a827cfae68ff41072023-11-20T09:19:19ZengMDPI AGChemosensors2227-90402020-08-01836510.3390/chemosensors8030065Wicking in Paper Strips under Consideration of Liquid Absorption CapacitySurasak Kasetsirikul0Muhammad J. A. Shiddiky1Nam-Trung Nguyen2Queensland Micro and Nanotechnology Centre (QMNC), Griffith University Nathan Campus, Nathan, Queensland 4111, AustraliaQueensland Micro and Nanotechnology Centre (QMNC), Griffith University Nathan Campus, Nathan, Queensland 4111, AustraliaQueensland Micro and Nanotechnology Centre (QMNC), Griffith University Nathan Campus, Nathan, Queensland 4111, AustraliaPaper-based microfluidic devices have the potential of being a low-cost platform for diagnostic devices. Electrical circuit analogy (ECA) model has been used to model the wicking process in paper-based microfluidic devices. However, material characteristics such as absorption capacity cannot be included in the previous ECA models. This paper proposes a new model to describe the wicking process with liquid absorption in a paper strip. We observed that the fluid continues to flow in a paper strip, even after the fluid reservoir has been removed. This phenomenon is caused by the ability of the paper to store liquid in its matrix. The model presented in this paper is derived from the analogy to the current response of an electric circuit with a capacitance. All coefficients in the model are fitted with data of capillary rise experiments and compared with direct measurement of the absorption capacity. The theoretical data of the model agrees well with experimental data and the conventional Washburn model. Considering liquid absorption capacity as a capacitance helps to explain the relationship between material characteristics and the wicking mechanism.https://www.mdpi.com/2227-9040/8/3/65paper-based microfluidicselectrical circuit analogyabsorption capacitywicking |
| spellingShingle | Surasak Kasetsirikul Muhammad J. A. Shiddiky Nam-Trung Nguyen Wicking in Paper Strips under Consideration of Liquid Absorption Capacity Chemosensors paper-based microfluidics electrical circuit analogy absorption capacity wicking |
| title | Wicking in Paper Strips under Consideration of Liquid Absorption Capacity |
| title_full | Wicking in Paper Strips under Consideration of Liquid Absorption Capacity |
| title_fullStr | Wicking in Paper Strips under Consideration of Liquid Absorption Capacity |
| title_full_unstemmed | Wicking in Paper Strips under Consideration of Liquid Absorption Capacity |
| title_short | Wicking in Paper Strips under Consideration of Liquid Absorption Capacity |
| title_sort | wicking in paper strips under consideration of liquid absorption capacity |
| topic | paper-based microfluidics electrical circuit analogy absorption capacity wicking |
| url | https://www.mdpi.com/2227-9040/8/3/65 |
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