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Seručnik M, Vicente FA, Brečko Ž, Coutinho JA, Ventura SP, Žnidaršič-Plazl P. Development of a Microfluidic Platform for R-Phycoerythrin Purification Using an Aqueous Micellar Two-Phase System. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2020; 8:17097-17105. [PMID: 33344096 PMCID: PMC7737240 DOI: 10.1021/acssuschemeng.0c05042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/22/2020] [Indexed: 05/14/2023]
Abstract
Temperature-dependent aqueous micellar two-phase systems (AMTPSs) have recently been gaining attention in the isolation of high-added-value biomolecules from their natural sources. Despite their sustainability, aqueous two-phase systems, and particularly AMTPSs, have not been extensively applied in the industry, which might be changed by applying process integration and continuous manufacturing. Here, we report for the first time on an integrated microfluidic platform for fast and low-material-consuming development of continuous protein purification using an AMTPS. A system comprised of a microchannel incubated at high temperature, enabling instantaneous triggering of a two-phase system formation, and a microsettler, allowing complete phase separation at the outlets, is reported here. The separation of phycobiliproteins and particularly the purification of R-phycoerythrin from the contaminant proteins present in the aqueous crude extract obtained from fresh cells of Gracilaria gracilis were thereby achieved. The results from the developed microfluidic system revealed that the fractionation performance was maintained while reducing the processing time more than 20-fold when compared with the conventional lab-scale batch process. Furthermore, the integration of a miniaturized ultrafiltration module resulted in the complete removal of the surfactant from the bottom phase containing R-phycoerythrin, as well as in nearly twofold target protein concentration. The process setup successfully exploits the benefits of process intensification along with the integration of various downstream processes. Further transfer to a meso-scale integrated system would make such a system appropriate for the separation and purification of biomolecules with high commercial interest.
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Affiliation(s)
- Mojca Seručnik
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
| | - Filipa A. Vicente
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
- Aveiro
Institute of Materials (CICECO), Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 PT Aveiro, Portugal
| | - Živa Brečko
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
| | - João A.
P. Coutinho
- Aveiro
Institute of Materials (CICECO), Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 PT Aveiro, Portugal
| | - Sónia P.
M. Ventura
- Aveiro
Institute of Materials (CICECO), Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 PT Aveiro, Portugal
| | - Polona Žnidaršič-Plazl
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
- Chair
of Microprocess Engineering and Technology–COMPETE, University
of Ljubljana, Večna
pot 113, SI-1000 Ljubljana, Slovenia
- . Phone: +386 1 479 8572
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Ortseifen V, Viefhues M, Wobbe L, Grünberger A. Microfluidics for Biotechnology: Bridging Gaps to Foster Microfluidic Applications. Front Bioeng Biotechnol 2020; 8:589074. [PMID: 33282849 PMCID: PMC7691494 DOI: 10.3389/fbioe.2020.589074] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022] Open
Abstract
Microfluidics and novel lab-on-a-chip applications have the potential to boost biotechnological research in ways that are not possible using traditional methods. Although microfluidic tools were increasingly used for different applications within biotechnology in recent years, a systematic and routine use in academic and industrial labs is still not established. For many years, absent innovative, ground-breaking and “out-of-the-box” applications have been made responsible for the missing drive to integrate microfluidic technologies into fundamental and applied biotechnological research. In this review, we highlight microfluidics’ offers and compare them to the most important demands of the biotechnologists. Furthermore, a detailed analysis in the state-of-the-art use of microfluidics within biotechnology was conducted exemplarily for four emerging biotechnological fields that can substantially benefit from the application of microfluidic systems, namely the phenotypic screening of cells, the analysis of microbial population heterogeneity, organ-on-a-chip approaches and the characterisation of synthetic co-cultures. The analysis resulted in a discussion of potential “gaps” that can be responsible for the rare integration of microfluidics into biotechnological studies. Our analysis revealed six major gaps, concerning the lack of interdisciplinary communication, mutual knowledge and motivation, methodological compatibility, technological readiness and missing commercialisation, which need to be bridged in the future. We conclude that connecting microfluidics and biotechnology is not an impossible challenge and made seven suggestions to bridge the gaps between those disciplines. This lays the foundation for routine integration of microfluidic systems into biotechnology research procedures.
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Affiliation(s)
- Vera Ortseifen
- Proteome and Metabolome Research, Faculty of Biology, Center for Biotechnology/CeBiTec, Bielefeld University, Bielefeld, Germany
| | - Martina Viefhues
- Experimental Biophysics and Applied Nanosciences, Faculty of Physics, Bielefeld University, Bielefeld, Germany
| | - Lutz Wobbe
- Algae Biotechnology and Bioenergy Group, Faculty of Biology, Center for Biotechnology/CeBiTec, Bielefeld University, Bielefeld, Germany
| | - Alexander Grünberger
- Multiscale Bioengineering, Faculty of Technology, Bielefeld University, Bielefeld, Germany
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Suea-Ngam A, Deck LT, Howes PD, deMello AJ. An ultrasensitive non-noble metal colorimetric assay using starch-iodide complexation for Ochratoxin A detection. Anal Chim Acta 2020; 1135:29-37. [PMID: 33070856 DOI: 10.1016/j.aca.2020.08.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/24/2020] [Accepted: 08/15/2020] [Indexed: 01/22/2023]
Abstract
Colorimetric sandwich-type biosensors that can both provide sensitivity competitive with fluorescence-based approaches, and leverage reagents that are cost-effective, widely available and as safe as possible, are highly sought after. Herein, we demonstrate an alternative highly-sensitive colorimetric method for paper-based sandwich-type biosensing that uses starch-iodide complexation to simplify practical biosensing using ubiquitous reagents. Targeting the mycotoxin ochratoxin A (OTA), a covalently-immobilised OTA antibody on a cellulose surface captures OTA and forms a sandwich with OTA aptamer-conjugated glucose oxidase. Adding the chromogenic reagents at an optimized concentration, a distinct blue color develops within 30 min, offering excellent contrast with the clear/white of the negative sample. With a sampling volume down to just 5 μL, the assay exhibits concentration limits of detection and quantitation of 20 and 320 pg mL-1, respectively, and a linear range from 10-1 to 105 ng mL-1 (R2 = 0.997). The method displays excellent selectivity against related mycotoxins, excellent %recovery (95-117%) and robust operation in complex matrices (beer, urine and human serum), with no significant difference versus gold-standard liquid chromatography. Along with its excellent analytical performance, this assay benefits from non-toxic and extremely cheap reagents that can be safely disposed of in the field, and presents an attractive alternative to toxic dyes and nanoparticles.
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Affiliation(s)
- Akkapol Suea-Ngam
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland
| | - Leif-Thore Deck
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland
| | - Philip D Howes
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland.
| | - Andrew J deMello
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093, Zürich, Switzerland.
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55
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Sohrabi S, Kassir N, Keshavarz Moraveji M. Droplet microfluidics: fundamentals and its advanced applications. RSC Adv 2020; 10:27560-27574. [PMID: 35516933 PMCID: PMC9055587 DOI: 10.1039/d0ra04566g] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 09/03/2020] [Accepted: 07/09/2020] [Indexed: 01/09/2023] Open
Abstract
Droplet-based microfluidic systems have been shown to be compatible with many chemical and biological reagents and capable of performing a variety of operations that can be rendered programmable and reconfigurable. This platform has dimensional scaling benefits that have enabled controlled and rapid mixing of fluids in the droplet reactors, resulting in decreased reaction times. This, coupled with the precise generation and repeatability of droplet operations, has made the droplet-based microfluidic system a potent high throughput platform for biomedical research and applications. In addition to being used as micro-reactors ranging from the nano- to femtoliter (10-15 liters) range; droplet-based systems have also been used to directly synthesize particles and encapsulate many biological entities for biomedicine and biotechnology applications. For this, in the following article we will focus on the various droplet operations, as well as the numerous applications of the system and its future in many advanced scientific fields. Due to advantages of droplet-based systems, this technology has the potential to offer solutions to today's biomedical engineering challenges for advanced diagnostics and therapeutics.
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Affiliation(s)
- Somayeh Sohrabi
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran Polytechnic Iran
| | - Nour Kassir
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran Polytechnic Iran
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Zhang Y, Sesen M, de Marco A, Neild A. Capacitive Sensing for Monitoring of Microfluidic Protocols Using Nanoliter Dispensing and Acoustic Mixing. Anal Chem 2020; 92:10725-10732. [DOI: 10.1021/acs.analchem.0c01906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yaqi Zhang
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, Australia
| | - Muhsincan Sesen
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, Australia
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
| | - Alex de Marco
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
- ARC Centre of Excellence for Advanced Molecular Imaging, Clayton, Victoria, Australia
| | - Adrian Neild
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, Australia
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57
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All-aqueous emulsions as miniaturized chemical reactors in the food and bioprocess technology. Curr Opin Food Sci 2020. [DOI: 10.1016/j.cofs.2020.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Arjun A, Ajith RR, Kumar Ranjith S. Mixing characterization of binary-coalesced droplets in microchannels using deep neural network. BIOMICROFLUIDICS 2020; 14:034111. [PMID: 32549924 PMCID: PMC7274813 DOI: 10.1063/5.0008461] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/21/2020] [Indexed: 05/16/2023]
Abstract
Real-time object identification and classification are essential in many microfluidic applications especially in the droplet microfluidics. This paper discusses the application of convolutional neural networks to detect the merged microdroplet in the flow field and classify them in an on-the-go manner based on the extent of mixing. The droplets are generated in PMMA microfluidic devices employing flow-focusing and cross-flow configurations. The visualization of binary coalescence of droplets is performed by a CCD camera attached to a microscope, and the sequence of images is recorded. Different real-time object localization and classification networks such as You Only Look Once and Singleshot Multibox Detector are deployed for droplet detection and characterization. A custom dataset to train these deep neural networks to detect and classify is created from the captured images and labeled manually. The merged droplets are segregated based on the degree of mixing into three categories: low mixing, intermediate mixing, and high mixing. The trained model is tested against images taken at different ambient conditions, droplet shapes, droplet sizes, and binary-fluid combinations, which indeed exhibited high accuracy and precision in predictions. In addition, it is demonstrated that these schemes are efficient in localization of coalesced binary droplets from the recorded video or image and classify them based on grade of mixing irrespective of experimental conditions in real time.
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Affiliation(s)
- A Arjun
- Micro/nanofluidics Research Laboratory, Department of Mechanical Engineering, College of Engineering Trivandrum, Thiruvananathapuram 695016, Kerala, India
| | - R R Ajith
- Micro/nanofluidics Research Laboratory, Department of Mechanical Engineering, College of Engineering Trivandrum, Thiruvananathapuram 695016, Kerala, India
| | - S Kumar Ranjith
- Micro/nanofluidics Research Laboratory, Department of Mechanical Engineering, College of Engineering Trivandrum, Thiruvananathapuram 695016, Kerala, India
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Teixeira A, Paris JL, Roumani F, Diéguez L, Prado M, Espiña B, Abalde-Cela S, Garrido-Maestu A, Rodriguez-Lorenzo L. Multifuntional Gold Nanoparticles for the SERS Detection of Pathogens Combined with a LAMP-in-Microdroplets Approach. MATERIALS (BASEL, SWITZERLAND) 2020; 13:ma13081934. [PMID: 32325992 DOI: 10.1021/acsanm.9b01223] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 05/25/2023]
Abstract
We developed a droplet-based optofluidic system for the detection of foodborne pathogens. Specifically, the loop-mediated isothermal amplification (LAMP) technique was combined with surface-enhanced Raman scattering (SERS), which offers an excellent method for DNA ultradetection. However, the direct SERS detection of DNA compromises the simplicity of data interpretation due to the variability of its SERS fingerprints. Therefore, we designed an indirect SERS detection method using multifunctional gold nanoparticles (AuNPs) based on the formation of pyrophosphate generated during the DNA amplification by LAMP. Towards this goal, we prepared multifunctional AuNPs involving three components with key roles: (1) thiolated poly(ethylene glycol) as stabilizing agent, (2) 1-naphthalenethiol as Raman reporter, and (3) glutathione as a bioinspired chelating agent of magnesium (II) ions. Thus, the variation in the SERS signal of 1-naphthalenethiol was controlled by the aggregation of AuNPs triggered by the complexation of pyrophosphate and glutathione with free magnesium ions. Using this strategy, we detected Listeria monocytogenes, not only in buffer, but also in a food matrix (i.e., ultra-high temperaturemilk) enabled by the massive production of hotspots as a result of the self-assemblies that enhanced the SERS signal. This allowed the development of a microdroplet-LAMP-SERS platform with isothermal amplification and real-time identification capabilities.
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Affiliation(s)
- Alexandra Teixeira
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Juan L Paris
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Foteini Roumani
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Lorena Diéguez
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Marta Prado
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Begoña Espiña
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Sara Abalde-Cela
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Alejandro Garrido-Maestu
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
| | - Laura Rodriguez-Lorenzo
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal
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Teixeira A, Paris JL, Roumani F, Diéguez L, Prado M, Espiña B, Abalde-Cela S, Garrido-Maestu A, Rodriguez-Lorenzo L. Multifuntional Gold Nanoparticles for the SERS Detection of Pathogens Combined with a LAMP-in-Microdroplets Approach. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1934. [PMID: 32325992 PMCID: PMC7215531 DOI: 10.3390/ma13081934] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 12/31/2022]
Abstract
We developed a droplet-based optofluidic system for the detection of foodborne pathogens. Specifically, the loop-mediated isothermal amplification (LAMP) technique was combined with surface-enhanced Raman scattering (SERS), which offers an excellent method for DNA ultradetection. However, the direct SERS detection of DNA compromises the simplicity of data interpretation due to the variability of its SERS fingerprints. Therefore, we designed an indirect SERS detection method using multifunctional gold nanoparticles (AuNPs) based on the formation of pyrophosphate generated during the DNA amplification by LAMP. Towards this goal, we prepared multifunctional AuNPs involving three components with key roles: (1) thiolated poly(ethylene glycol) as stabilizing agent, (2) 1-naphthalenethiol as Raman reporter, and (3) glutathione as a bioinspired chelating agent of magnesium (II) ions. Thus, the variation in the SERS signal of 1-naphthalenethiol was controlled by the aggregation of AuNPs triggered by the complexation of pyrophosphate and glutathione with free magnesium ions. Using this strategy, we detected Listeria monocytogenes, not only in buffer, but also in a food matrix (i.e., ultra-high temperaturemilk) enabled by the massive production of hotspots as a result of the self-assemblies that enhanced the SERS signal. This allowed the development of a microdroplet-LAMP-SERS platform with isothermal amplification and real-time identification capabilities.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Laura Rodriguez-Lorenzo
- International Iberian Nanotechnology Laboratory (INL), Avda Mestre José Veiga, 4715-310 Braga, Portugal; (A.T.); (J.L.P.); (F.R.); (L.D.); (M.P.); (B.E.); (S.A.-C.); (A.G.-M.)
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61
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Shi Z, Lai X, Sun C, Zhang X, Zhang L, Pu Z, Wang R, Yu H, Li D. Step emulsification in microfluidic droplet generation: mechanisms and structures. Chem Commun (Camb) 2020; 56:9056-9066. [DOI: 10.1039/d0cc03628e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Step emulsification for micro- and nano-droplet generation is reviewed in brief, including the emulsion mechanisms and microfluidic devices.
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Affiliation(s)
- Zhi Shi
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
| | - Xiaochen Lai
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
| | - Chengtao Sun
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
| | - Xingguo Zhang
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
| | - Lei Zhang
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
| | - Zhihua Pu
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
| | - Ridong Wang
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
| | - Haixia Yu
- Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments
- Tianjin University
- Tianjin
- China
| | - Dachao Li
- State Key Laboratory of Precision Measuring Technology and Instruments
- Tianjin University
- Tianjin
- China
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62
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Ducrée J. Efficient Development of Integrated Lab-On-A-Chip Systems Featuring Operational Robustness and Manufacturability. MICROMACHINES 2019; 10:mi10120886. [PMID: 31861126 PMCID: PMC6953106 DOI: 10.3390/mi10120886] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 12/28/2022]
Abstract
The majority of commercially oriented microfluidic technologies provide novel point-of-use solutions for laboratory automation with important areas in the context of the life sciences such as health care, biopharma, veterinary medicine and agrifood as well as for monitoring of the environment, infrastructures and industrial processes. Such systems are often composed of a modular setup exhibiting an instrument accommodating rather conventional actuation, detection and control units which interfaces with a fluidically integrated "Lab-on-a-Chip" device handling (bio-)sample(s) and reagents. As the complex network of tiny channels, chambers and surface-functionalised zones can typically not be properly cleaned and regenerated, these microfluidic chips are mostly devised as single-use disposables. The availability of cost-efficient materials and associated structuring, functionalisation and assembly schemes thus represents a key ingredient along the commercialisation pipeline and will be a first focus of this work. Furthermore, and owing to their innate variability, investigations on biosamples mostly require the acquisition of statistically relevant datasets. Consequently, intermediate numbers of consistently performing chips are already needed during application development; to mitigate the potential pitfalls of technology migration and to facilitate regulatory compliance of the end products, manufacture of such pilot series should widely follow larger-scale production schemes. To expedite and de-risk the development of commercially relevant microfluidic systems towards high Technology Readiness Levels (TRLs), we illustrate a streamlined, manufacturing-centric platform approach employing the paradigms of tolerance-forgiving Design-for-Manufacture (DfM) and Readiness for Scale-up (RfS) from prototyping to intermediate pilot series and eventual mass fabrication. Learning from mature industries, we further propose pursuing a platform approach incorporating aspects of standardisation in terms of specification, design rules and testing methods for materials, components, interfaces, and operational procedures; this coherent strategy will foster the emergence of dedicated commercial supply chains and also improve the economic viability of Lab-on-a-Chip systems often targeting smaller niche markets by synergistically bundling technology development.
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Affiliation(s)
- Jens Ducrée
- FPC@DCU-Fraunhofer Project Centre for Embedded Bioanalytical Systems at Dublin City University, School of Physical Sciences, Glasnevin, Dublin 9, Ireland
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63
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Affiliation(s)
- Yun Ding
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zürich, Switzerland
| | - Philip D. Howes
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zürich, Switzerland
| | - Andrew J. deMello
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zürich, Switzerland
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