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Qin D, Gibbons AH, Ito MM, Parimalam SS, Jiang H, Enis Karahan H, Ghalei B, Yamaguchi D, Pandian GN, Sivaniah E. Structural colour enhanced microfluidics. Nat Commun 2022; 13:2281. [PMID: 35589687 PMCID: PMC9120135 DOI: 10.1038/s41467-022-29956-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 04/08/2022] [Indexed: 01/11/2023] Open
Abstract
Advances in microfluidic technology towards flexibility, transparency, functionality, wearability, scale reduction or complexity enhancement are currently limited by choices in materials and assembly methods. Organized microfibrillation is a method for optically printing well-defined porosity into thin polymer films with ultrahigh resolution. Here we demonstrate this method to create self-enclosed microfluidic devices with a few simple steps, in a number of flexible and transparent formats. Structural colour, a property of organized microfibrillation, becomes an intrinsic feature of these microfluidic devices, enabling in-situ sensing capability. Since the system fluid dynamics are dependent on the internal pore size, capillary flow is shown to become characterized by structural colour, while independent of channel dimension, irrespective of whether devices are printed at the centimetre or micrometre scale. Moreover, the capability of generating and combining different internal porosities enables the OM microfluidics to be used for pore-size based applications, as demonstrated by separation of biomolecular mixtures.
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Affiliation(s)
- Detao Qin
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan
| | - Andrew H Gibbons
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan
| | - Masateru M Ito
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan.
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan.
| | | | - Handong Jiang
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan
| | - H Enis Karahan
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan
| | - Behnam Ghalei
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan
| | - Daisuke Yamaguchi
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan
| | - Ganesh N Pandian
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan
| | - Easan Sivaniah
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University of Advanced Study, Kyoto University, 606-8501, Kyoto, Japan.
- Department of Molecular Engineering, Kyoto University, 616-8510, Kyoto, Japan.
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