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Ogishi K, Osaki T, Morimoto Y, Takeuchi S. 3D printed microfluidic devices for lipid bilayer recordings. LAB ON A CHIP 2022; 22:890-898. [PMID: 35133381 DOI: 10.1039/d1lc01077h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This paper verifies the single-step and monolithic fabrication of 3D structural lipid bilayer devices using stereolithography. Lipid bilayer devices are utilized to host membrane proteins in vitro for biological assays or sensing applications. There is a growing demand to fabricate functional lipid bilayer devices with a short lead-time, and the monolithic fabrication of components by 3D printing is highly anticipated. However, the prerequisites of 3D printing materials which lead to reproducible lipid bilayer formation are still unknown. Here, we examined the feasibility of membrane protein measurement using lipid bilayer devices fabricated by stereolithography. The 3D printing materials were characterized and the surface smoothness and hydrophobicity were found to be the relevant factors for successful lipid bilayer formation. The devices were comparable to the ones fabricated by conventional procedures in terms of measurement performances like the amplitude of noise and the waiting time for lipid bilayer formation. We further demonstrated the extendibility of the technology for the functionalization of devices, such as incorporating microfluidic channels for solution exchangeability and arraying multiple chambers for robust measurement.
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Affiliation(s)
- Kazuto Ogishi
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
| | - Toshihisa Osaki
- Kanagawa Institute of Industrial Science and Technology, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Yuya Morimoto
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
| | - Shoji Takeuchi
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
- Kanagawa Institute of Industrial Science and Technology, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
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Friddin MS, Elani Y, Trantidou T, Ces O. New Directions for Artificial Cells Using Prototyped Biosystems. Anal Chem 2019; 91:4921-4928. [PMID: 30841694 DOI: 10.1021/acs.analchem.8b04885] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Microfluidics has has enabled the generation of a range of single compartment and multicompartment vesicles and bilayer-delineated droplets that can be assembled in 2D and 3D. These model systems are becoming increasingly used as artificial cell chassis and as biomimetic constructs for assembling tissue models, engineering therapeutic delivery systems, and screening drugs. One bottleneck in developing this technology is the time, expertise, and equipment required for device fabrication. This has led to interest across the microfluidics community in using rapid prototyping to engineer microfluidic devices from computer-aided-design (CAD) drawings. We highlight how this rapid-prototyping revolution is transforming the fabrication of microfluidic devices for artificial cell construction in bottom-up synthetic biology. We provide an outline of the current landscape and present how advances in the field may give rise to the next generation of multifunctional biodevices, particularly with Industry 4.0 on the horizon. Successfully developing this technology and making it open-source could pave the way for a new generation of citizen-led science, fueling the possibility that the next multibillion-dollar start-up could emerge from an attic or a basement.
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Affiliation(s)
- Mark S Friddin
- Department of Chemistry , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom
| | - Yuval Elani
- Department of Chemistry , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom.,Institute of Chemical Biology , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom.,fabriCELL, Molecular Sciences Research Hub , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom
| | - Tatiana Trantidou
- Department of Chemistry , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom
| | - Oscar Ces
- Department of Chemistry , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom.,Institute of Chemical Biology , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom.,fabriCELL, Molecular Sciences Research Hub , Imperial College London , Wood Lane , London , W12 0BZ , United Kingdom
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Trantidou T, Friddin MS, Salehi-Reyhani A, Ces O, Elani Y. Droplet microfluidics for the construction of compartmentalised model membranes. LAB ON A CHIP 2018; 18:2488-2509. [PMID: 30066008 DOI: 10.1039/c8lc00028j] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The design of membrane-based constructs with multiple compartments is of increasing importance given their potential applications as microreactors, as artificial cells in synthetic-biology, as simplified cell models, and as drug delivery vehicles. The emergence of droplet microfluidics as a tool for their construction has allowed rapid scale-up in generation throughput, scale-down of size, and control over gross membrane architecture. This is true on several levels: size, level of compartmentalisation and connectivity of compartments can all be programmed to various degrees. This tutorial review explains and explores the reasons behind this. We discuss microfluidic strategies for the generation of a family of compartmentalised systems that have lipid membranes as the basic structural motifs, where droplets are either the fundamental building blocks, or are precursors to the membrane-bound compartments. We examine the key properties associated with these systems (including stability, yield, encapsulation efficiency), discuss relevant device fabrication technologies, and outline the technical challenges. In doing so, we critically review the state-of-play in this rapidly advancing field.
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Affiliation(s)
- T Trantidou
- Department of Chemistry, Imperial College London, London, SW7 2AZ, UK.
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