1
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Rane A, Tate S, Sumey JL, Zhong Q, Zong H, Purow B, Caliari SR, Swami NS. Open-Top Patterned Hydrogel-Laden 3D Glioma Cell Cultures for Creation of Dynamic Chemotactic Gradients to Direct Cell Migration. ACS Biomater Sci Eng 2024; 10:3470-3477. [PMID: 38652035 PMCID: PMC11094679 DOI: 10.1021/acsbiomaterials.4c00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/27/2024] [Accepted: 04/04/2024] [Indexed: 04/25/2024]
Abstract
The laminar flow profiles in microfluidic systems coupled to rapid diffusion at flow streamlines have been widely utilized to create well-controlled chemical gradients in cell cultures for spatially directing cell migration. However, within hydrogel-based closed microfluidic systems of limited depth (≤0.1 mm), the biomechanical cues for the cell culture are dominated by cell interactions with channel surfaces rather than with the hydrogel microenvironment. Also, leaching of poly(dimethylsiloxane) (PDMS) constituents in closed systems and the adsorption of small molecules to PDMS alter chemotactic profiles. To address these limitations, we present the patterning and integration of a PDMS-free open fluidic system, wherein the cell-laden hydrogel directly adjoins longitudinal channels that are designed to create chemotactic gradients across the 3D culture width, while maintaining uniformity across its ∼1 mm depth to enhance cell-biomaterial interactions. This hydrogel-based open fluidic system is assessed for its ability to direct migration of U87 glioma cells using a hybrid hydrogel that includes hyaluronic acid (HA) to mimic the brain tumor microenvironment and gelatin methacrylate (GelMA) to offer the adhesion motifs for promoting cell migration. Chemotactic gradients to induce cell migration across the hydrogel width are assessed using the chemokine CXCL12, and its inhibition by AMD3100 is validated. This open-top hydrogel-based fluidic system to deliver chemoattractant cues over square-centimeter-scale areas and millimeter-scale depths can potentially serve as a robust screening platform to assess emerging glioma models and chemotherapeutic agents to eradicate them.
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Affiliation(s)
- Aditya Rane
- Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Steven Tate
- Electrical
and Computer Engineering, University of
Virginia, Charlottesville, Virginia 22904, United States
| | - Jenna L. Sumey
- Chemical
Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Qing Zhong
- Neurology,
School of Medicine, University of Virginia, Charlottesville, Virginia 22903, United States
| | - Hui Zong
- Microbiology,
Immunology & Cancer Biology, School of Medicine, University of Virginia, Charlottesville, Virginia 22903, United States
| | - Benjamin Purow
- Neurology,
School of Medicine, University of Virginia, Charlottesville, Virginia 22903, United States
| | - Steven R. Caliari
- Chemical
Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
- Biomedical
Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Nathan S. Swami
- Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
- Electrical
and Computer Engineering, University of
Virginia, Charlottesville, Virginia 22904, United States
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2
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Deliorman M, Ali DS, Qasaimeh MA. Next-Generation Microfluidics for Biomedical Research and Healthcare Applications. Biomed Eng Comput Biol 2023; 14:11795972231214387. [PMID: 38033395 PMCID: PMC10683381 DOI: 10.1177/11795972231214387] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Microfluidic systems offer versatile biomedical tools and methods to enhance human convenience and health. Advances in these systems enables next-generation microfluidics that integrates automation, manipulation, and smart readout systems, as well as design and three-dimensional (3D) printing for precise production of microchannels and other microstructures rapidly and with great flexibility. These 3D-printed microfluidic platforms not only control the complex fluid behavior for various biomedical applications, but also serve as microconduits for building 3D tissue constructs-an integral component of advanced drug development, toxicity assessment, and accurate disease modeling. Furthermore, the integration of other emerging technologies, such as advanced microscopy and robotics, enables the spatiotemporal manipulation and high-throughput screening of cell physiology within precisely controlled microenvironments. Notably, the portability and high precision automation capabilities in these integrated systems facilitate rapid experimentation and data acquisition to help deepen our understanding of complex biological systems and their behaviors. While certain challenges, including material compatibility, scaling, and standardization still exist, the integration with artificial intelligence, the Internet of Things, smart materials, and miniaturization holds tremendous promise in reshaping traditional microfluidic approaches. This transformative potential, when integrated with advanced technologies, has the potential to revolutionize biomedical research and healthcare applications, ultimately benefiting human health. This review highlights the advances in the field and emphasizes the critical role of the next generation microfluidic systems in advancing biomedical research, point-of-care diagnostics, and healthcare systems.
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Affiliation(s)
| | - Dima Samer Ali
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, New York, NY, USA
| | - Mohammad A Qasaimeh
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, New York, NY, USA
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3
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Courson R, Bratash O, Maziz A, Desmet C, Meza RA, Leroy L, Engel E, Buhot A, Malaquin L, Leïchlé T. Rapid prototyping of a polymer MEMS droplet dispenser by laser-assisted 3D printing. MICROSYSTEMS & NANOENGINEERING 2023; 9:85. [PMID: 37408536 PMCID: PMC10318032 DOI: 10.1038/s41378-023-00559-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/01/2023] [Accepted: 05/23/2023] [Indexed: 07/07/2023]
Abstract
In this work, we introduce a polymer version of a previously developed silicon MEMS drop deposition tool for surface functionalization that consists of a microcantilever integrating an open fluidic channel and a reservoir. The device is fabricated by laser stereolithography, which offers the advantages of low-cost and fast prototyping. Additionally, thanks to the ability to process multiple materials, a magnetic base is incorporated into the cantilever for convenient handling and attachment to the holder of a robotized stage used for spotting. Droplets with diameters ranging from ∼50 µm to ∼300 µm are printed upon direct contact of the cantilever tip with the surface to pattern. Liquid loading is achieved by fully immersing the cantilever into a reservoir drop, where a single load results in the deposition of more than 200 droplets. The influences of the size and shape of the cantilever tip and the reservoir on the printing outcome are studied. As a proof-of-concept of the biofunctionalization capability of this 3D printed droplet dispenser, microarrays of oligonucleotides and antibodies displaying high specificity and no cross-contamination are fabricated, and droplets are deposited at the tip of an optical fiber bundle.
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Affiliation(s)
- Rémi Courson
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France
| | - Oleksii Bratash
- Université Grenoble Alpes, CNRS, CEA, IRIG, SyMMES, 38000 Grenoble, France
| | - Ali Maziz
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France
| | - Cloé Desmet
- Université Grenoble Alpes, CNRS, CEA, IRIG, SyMMES, 38000 Grenoble, France
| | | | - Loïc Leroy
- Université Grenoble Alpes, CNRS, CEA, IRIG, SyMMES, 38000 Grenoble, France
| | - Elodie Engel
- Université Grenoble Alpes, CNRS, CEA, IRIG, SyMMES, 38000 Grenoble, France
| | - Arnaud Buhot
- Université Grenoble Alpes, CNRS, CEA, IRIG, SyMMES, 38000 Grenoble, France
| | | | - Thierry Leïchlé
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France
- Georgia Tech−CNRS International Research Laboratory, Atlanta, GA 30332 USA
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4
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Boulais E, Gervais T. The 2D microfluidics cookbook - modeling convection and diffusion in plane flow devices. LAB ON A CHIP 2023; 23:1967-1980. [PMID: 36884010 DOI: 10.1039/d2lc01033j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A growing number of microfluidic systems operate not through networks of microchannels but instead through using 2D flow fields. While the design rules for channel networks are already well-known and exposed in microfluidics textbooks, the knowledge underlying transport in 2D microfluidics remains scattered piecemeal and is not easily accessible to experimentalists and engineers. In this tutorial review, we formulate a unified framework for understanding, analyzing and designing 2D microfluidic technologies. We first show how a large number of seemingly different devices can all be modelled using the same concepts, namely flow and diffusion in a Hele-Shaw cell. We then expose a handful of mathematical tools, accessible to any engineer with undergraduate level mathematics knowledge, namely potential flow, superposition of charges, conformal transforms and basic convection-diffusion. We show how these tools can be combined to obtain a simple "recipe" that models almost any imaginable 2D microfluidic system. We end by pointing to more advanced topics beyond 2D microfluidics, namely interface problems and flow and diffusion in the third dimension. This forms the basis of a complete theory allowing for the design and operation of new microfluidic systems.
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Affiliation(s)
- Etienne Boulais
- Polytechnique Montreal, 2500 Chemin de Polytechnique, Montréal, QC H3T 1J4, Canada.
| | - Thomas Gervais
- Polytechnique Montreal, 2500 Chemin de Polytechnique, Montréal, QC H3T 1J4, Canada.
- Institut du Cancer de Montréal (ICM) and Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Canada
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5
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Pixelated Microfluidics for Drug Screening on Tumour Spheroids and Ex Vivo Microdissected Tumour Explants. Cancers (Basel) 2023; 15:cancers15041060. [PMID: 36831403 PMCID: PMC9954565 DOI: 10.3390/cancers15041060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/27/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023] Open
Abstract
Anticancer drugs have the lowest success rate of approval in drug development programs. Thus, preclinical assays that closely predict the clinical responses to drugs are of utmost importance in both clinical oncology and pharmaceutical research. 3D tumour models preserve the tumoral architecture and are cost- and time-efficient. However, the short-term longevity, limited throughput, and limitations of live imaging of these models have so far driven researchers towards less realistic tumour models such as monolayer cell cultures. Here, we present an open-space microfluidic drug screening platform that enables the formation, culture, and multiplexed delivery of several reagents to various 3D tumour models, namely cancer cell line spheroids and ex vivo primary tumour fragments. Our platform utilizes a microfluidic pixelated chemical display that creates isolated adjacent flow sub-units of reagents, which we refer to as fluidic 'pixels', over tumour models in a contact-free fashion. Up to nine different treatment conditions can be tested over 144 samples in a single experiment. We provide a proof-of-concept application by staining fixed and live tumour models with multiple cellular dyes. Furthermore, we demonstrate that the response of the tumour models to biological stimuli can be assessed using the platform. Upscaling the microfluidic platform to larger areas can lead to higher throughputs, and thus will have a significant impact on developing treatments for cancer.
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6
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Deliorman M, Glia A, Qasaimeh MA. Affinity-Based Microfluidics Combined with Atomic Force Microscopy for Isolation and Nanomechanical Characterization of Circulating Tumor Cells. Methods Mol Biol 2023; 2679:41-66. [PMID: 37300608 DOI: 10.1007/978-1-0716-3271-0_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this chapter, we present the materials and methods required to isolate and characterize circulating tumor cells (CTCs) from blood samples of cancer patients based on our newly developed microfluidic technologies. In particular, the devices presented herein are designed to be compatible with at\omic force microscopy (AFM) for post-capture nanomechanical investigation of CTCs. Microfluidics is well-established as a technology for isolating CTCs from the whole blood of cancer patients, and AFM is a gold standard for quantitative biophysical analysis of cells. However, CTCs are very scarce in nature, and those captured using standard closed-channel microfluidic chips are typically inaccessible for AFM procedures. As a result, their nanomechanical properties largely remain unexplored. Thus, given limitations associated with current microfluidic designs, significant efforts are put toward bringing innovative designs for real time characterization of CTCs. In light of this constant endeavor, the scope of this chapter is to compile our recent efforts on two microfluidic technologies, namely, the AFM-Chip and the HB-MFP, which proved to be efficient in isolating CTCs through antibody-antigen interactions, and their subsequent characterization using AFM.
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Affiliation(s)
| | - Ayoub Glia
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE
| | - Mohammad A Qasaimeh
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE.
- Tandon School of Engineering, New York University, Brooklyn, NY, USA.
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7
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Zhao L, Wang X. 3D printed microfluidics for cell biological applications. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Anshori I, Lukito V, Adhawiyah R, Putri D, Harimurti S, Rajab TLE, Pradana A, Akbar M, Syamsunarno MRAA, Handayani M, Purwidyantri A, Prabowo BA. Versatile and Low-Cost Fabrication of Modular Lock-and-Key Microfluidics for Integrated Connector Mixer Using a Stereolithography 3D Printing. MICROMACHINES 2022; 13:mi13081197. [PMID: 36014119 PMCID: PMC9413493 DOI: 10.3390/mi13081197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/24/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022]
Abstract
We present a low-cost and simple method to fabricate a novel lock-and-key mixer microfluidics using an economic stereolithography (SLA) three-dimensional (3D) printer, which costs less than USD 400 for the investment. The proposed study is promising for a high throughput fabrication module, typically limited by conventional microfluidics fabrications, such as photolithography and polymer-casting methods. We demonstrate the novel modular lock-and-key mixer for the connector and its chamber modules with optimized parameters, such as exposure condition and printing orientation. In addition, the optimization of post-processing was performed to investigate the reliability of the fabricated hollow structures, which are fundamental to creating a fluidic channel or chamber. We found out that by using an inexpensive 3D printer, the fabricated resolution can be pushed down to 850 µm and 550 µm size for squared- and circled-shapes, respectively, by the gradual hollow structure, applying vertical printing orientation. These strategies opened up the possibility of developing straightforward microfluidics platforms that could replace conventional microfluidics mold fabrication methods, such as photolithography and milling, which are costly and time consuming. Considerably cheap commercial resin and its tiny volume employed for a single printing procedure significantly cut down the estimated fabrication cost to less than 50 cents USD/module. The simulation study unravels the prominent properties of the fabricated devices for biological fluid mixers, such as PBS, urine and plasma blood. This study is eminently prospective toward microfluidics application in clinical biosensing, where disposable, low-cost, high-throughput, and reproducible chips are highly required.
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Affiliation(s)
- Isa Anshori
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
- Research Center for Nanosciences and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung 40132, Indonesia;
- Correspondence: (I.A.); (B.A.P.)
| | - Vincent Lukito
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Rafita Adhawiyah
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Delpita Putri
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Suksmandhira Harimurti
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Tati Latifah Erawati Rajab
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Arfat Pradana
- Research Center for Nanosciences and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung 40132, Indonesia;
| | - Mohammad Akbar
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran and Dr. Hasan Sadikin General Hospital, Bandung 40161, Indonesia;
| | | | - Murni Handayani
- National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (M.H.); (A.P.)
| | - Agnes Purwidyantri
- National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (M.H.); (A.P.)
- International Iberian Nanotechnology Laboratory (INL), 4715-330 Braga, Portugal
| | - Briliant Adhi Prabowo
- National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (M.H.); (A.P.)
- International Iberian Nanotechnology Laboratory (INL), 4715-330 Braga, Portugal
- Correspondence: (I.A.); (B.A.P.)
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9
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B.Musgrove H, A.Catterton M, R.Pompano R. Applied tutorial for the design and fabrication of biomicrofluidic devices by resin 3D printing. Anal Chim Acta 2022; 1209:339842. [DOI: 10.1016/j.aca.2022.339842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 11/01/2022]
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10
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Simon D, Oleschuk R. The liquid micro junction-surface sampling probe (LMJ-SSP); a versatile ambient mass spectrometry interface. Analyst 2021; 146:6365-6378. [PMID: 34553725 DOI: 10.1039/d1an00725d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Ambient ionization methods have become important tools in mass spectrometry. The LMJ-SSP can significantly simplify/reduce lengthy sample preparation requirements associated with mass spectrometry analysis. Samples may be introduced through direct contact, insertion and droplet injection, enabling applications from drug discovery and surface analysis to tissue profiling and metabolic mapping. This review examines the underlying principles associated with the LMJ-SSP interface and highlights modifications of the original design that have extended its capability. We summarize different application areas that have exploited the method and describe potential future directions for the adaptable ambient ionization source.
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Affiliation(s)
- David Simon
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
| | - Richard Oleschuk
- Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
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11
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Brimmo AT, Menachery A, Sukumar P, Qasaimeh MA. Noncontact Multiphysics Probe for Spatiotemporal Resolved Single-Cell Manipulation and Analyses. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100801. [PMID: 34008302 DOI: 10.1002/smll.202100801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Heterogeneity and spatial arrangement of individual cells within tissues are critical to the identity of the host multicellular organism. While current single-cell techniques are capable of resolving heterogeneity, they mostly rely on extracting target cells from their physiological environment and hence lose the spatiotemporal resolution required for understanding cellular networks. Here, a multifunctional noncontact scanning probe that can precisely perform multiple manipulation procedures on living single-cells, while within their physiological tissue environment, is demonstrated. The noncontact multiphysics probe (NMP) consists of fluidic apertures and "hump" shaped electrodes that simultaneously confine reagents and electric signals with a single-cell resolution. The NMP's unique electropermealization-based approach in transferring macromolecules through the cell membrane is presented. The technology's adjustable spatial ability is demonstrated by transfecting adjacent single-cells with different DNA plasmid vectors. The NMP technology also opens the door for controllable cytoplasm extraction from living single-cells. This powerful application is demonstrated by executing multiple time point biopsies on adherent cells without affecting the integrity of the extracted macromolecules or the viability of cells. Furthermore, the NMP's function as an electro-thermal based microfluidic whole-cell tweezer is reported. This work offers a multifunctional tool with unprecedented probing features for spatiotemporal single-cell analysis within tissue samples.
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Affiliation(s)
- Ayoola T Brimmo
- Division of Engineering, New York University Abu Dhabi (NYUAD), P.O. Box 129188, Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Anoop Menachery
- Division of Engineering, New York University Abu Dhabi (NYUAD), P.O. Box 129188, Abu Dhabi, UAE
| | - Pavithra Sukumar
- Division of Engineering, New York University Abu Dhabi (NYUAD), P.O. Box 129188, Abu Dhabi, UAE
| | - Mohammad A Qasaimeh
- Division of Engineering, New York University Abu Dhabi (NYUAD), P.O. Box 129188, Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, Brooklyn, NY, 11201, USA
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12
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Goyette PA, Boulais É, Tremblay M, Gervais T. Pixel-based open-space microfluidics for versatile surface processing. Proc Natl Acad Sci U S A 2021; 118:e2019248118. [PMID: 33376203 PMCID: PMC7812784 DOI: 10.1073/pnas.2019248118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
An increasing number of applications in biology, chemistry, and material sciences require fluid manipulation beyond what is possible with current automated pipette handlers, such as gradient generation, interface reactions, reagent streaming, and reconfigurability. In this article, we introduce the pixelated chemical display (PCD), a scalable strategy for highly parallel, reconfigurable liquid handling on open surfaces. Microfluidic "pixels" are created when a fluid stream injected above a surface is confined by neighboring identical fluid streams, forming a repeatable flow unit that can be used to tesselate a surface. PCDs generating up to 144 pixels are fabricated and used to project "chemical moving pictures" made of several reagents over both immersed and dry surfaces, without any physical barrier or wall. This work distinguishes itself from previous work in open-space microfluidics by presenting a device architecture where the number of confinement areas can be scaled to any size. Furthermore, it challenges the open-space tenet that the aspiration rate must be higher than the injection rate for reagents to be confined. Overall, this article sets the foundation for massively parallel surface processing using continuous flow streams and showcases possibilities in both wet and dry surface patterning and roll-to-roll processes.
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Affiliation(s)
| | - Étienne Boulais
- Department of Engineering Physics, École Polytechnique de Montréal, Montréal, QC H3T 1J4, Canada
| | - Maude Tremblay
- Department of Engineering Physics, École Polytechnique de Montréal, Montréal, QC H3T 1J4, Canada
| | - Thomas Gervais
- Institut de Génie Biomédical, Polytechnique Montréal, Montréal, QC H3T 1J4, Canada;
- Department of Engineering Physics, École Polytechnique de Montréal, Montréal, QC H3T 1J4, Canada
- Institut du Cancer de Montréal, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, QC H2X 0C1, Canada
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13
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Siller IG, Enders A, Gellermann P, Winkler S, Lavrentieva A, Scheper T, Bahnemann J. Characterization of a customized 3D-printed cell culture system using clear, translucent acrylate that enables optical online monitoring. Biomed Mater 2020; 15:055007. [DOI: 10.1088/1748-605x/ab8e97] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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14
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Shinha K, Nihei W, Kimura H. A Microfluidic Probe Integrated Device for Spatiotemporal 3D Chemical Stimulation in Cells. MICROMACHINES 2020; 11:mi11070691. [PMID: 32708814 PMCID: PMC7408473 DOI: 10.3390/mi11070691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/05/2020] [Accepted: 07/14/2020] [Indexed: 11/16/2022]
Abstract
Numerous in vitro studies have been conducted in conventional static cell culture systems. However, most of the results represent an average response from a population of cells regardless of their local microenvironment. A microfluidic probe is a non-contact technology that has been widely used to perform local chemical stimulation within a restricted space, providing elaborated modulation and analysis of cellular responses within the microenvironment. Although microfluidic probes developed earlier have various potential applications, the two-dimensional structure can compromise their functionality and flexibility for practical use. In this study, we developed a three-dimensional microfluidic probe integrated device equipped with vertically oriented microchannels to overcome crucial challenges and tested the potential utility of the device in biological research. We demonstrated that the device tightly regulated spatial diffusion of a fluorescent molecule, and the flow profile predicted by simulation replicated the experimental results. Additionally, the device modulated the physiological Ca2+ response of cells within the restricted area by altering the local and temporal concentrations of biomolecules such as ATP. The novel device developed in this study may provide various applications for biological studies and contribute to further understanding of molecular mechanisms underlying cellular physiology.
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Affiliation(s)
- Kenta Shinha
- Department of Mechanical Engineering, School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan; (K.S.); (W.N.)
| | - Wataru Nihei
- Department of Mechanical Engineering, School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan; (K.S.); (W.N.)
- Micro/Nano Technology Center (MNTC), Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan
| | - Hiroshi Kimura
- Department of Mechanical Engineering, School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan; (K.S.); (W.N.)
- Micro/Nano Technology Center (MNTC), Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan
- Correspondence: ; Tel.: +81-463-58-1211
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15
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Yan C, Jiang P, Jia X, Wang X. 3D printing of bioinspired textured surfaces with superamphiphobicity. NANOSCALE 2020; 12:2924-2938. [PMID: 31993618 DOI: 10.1039/c9nr09620e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Natural superwettable surfaces have received extensive attention due to their unique wetting performance and functionalities. Inspired by nature, artificial surfaces with superwettability, particularly superamphiphobicity, i.e., superhydrophobicity and superoleophobicity, have been widely developed using various methods and techniques, where 3D printing, which is also called additive manufacturing, is an emerging technique. 3D printing is efficient for rapid and precise prototyping with the advantage of fabricating various architectures and structures with extreme complexity. Therefore, it is promising for building bioinspired superamphiphobic surfaces with structural complexity in a facile manner. Herein, the state-of-the-art 3D printing techniques and methods for fabricating superwettable surfaces with micro/nanostructures are reviewed, followed by an overview of their extensive applications, which are believed to be promising in engineered wettability, bionic science, liquid transport, microfluidics, drag reduction, anti-fouling, oil/water separation, etc.
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Affiliation(s)
- Changyou Yan
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Pan Jiang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Xin Jia
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
| | - Xiaolong Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. and School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China and Yiwu R&D Centre for Functional Materials, LICP, CAS, Yiwu 322000, China
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16
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Bulboacă AE, Boarescu PM, Melincovici CS, Mihu CM. Microfluidic endothelium-on-a-chip development, from in vivo to in vitro experimental models. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY = REVUE ROUMAINE DE MORPHOLOGIE ET EMBRYOLOGIE 2020; 61:15-23. [PMID: 32747891 PMCID: PMC7728109 DOI: 10.47162/rjme.61.1.02] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 07/14/2020] [Indexed: 01/10/2023]
Abstract
In the last years, animal testing in medical research has been a controversial topic because of various reasons, such as ethical considerations and species differences. Therefore, more attention has been given to develop new technologies that can replace animal experiments and create in vitro models. Organ-on-a-chip (OOC) technology is a new and advanced technology based on microfluidic devices that can mimic the structure and function of entire organs and tissues as in vitro models. OOC models are miniature tissues and organs that assign characteristics for three-dimensional (3D) cell culture representation that resemble the original organs, together with their specific microenvironment microfluidic systems and specific biophysical processes, in order to mimic the normal physiological conditions and functionalities of the organs. Existing OOC models, such as liver, pancreas, heart, skin, brain, kidney, vessels, have been developed and designed for a specific function study. This review focuses on the main knowledge concerning OOC research and especially vascular endothelium-on-a-chip (EOC) model, developed in order to offer specific tools for studying vascular functions in physiological and pathological conditions. The field of OOC devices is still at the beginning, but in the future, this technology may have important roles in developing novel therapeutic approaches, offering new therapeutic molecules and providing the first step towards personalized medicine.
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Affiliation(s)
- Adriana Elena Bulboacă
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania;
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Brimmo AT, Menachery A, Qasaimeh MA. Microelectrofluidic probe for sequential cell separation and patterning. LAB ON A CHIP 2019; 19:4052-4063. [PMID: 31680130 DOI: 10.1039/c9lc00748b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Cell separation and patterning are of interest to several biological and medical applications including rare cell isolation and co-culture models. Numerous microfluidic devices have been used for cell separation and patterning, however, the typical closed channel configuration comes with challenges and limitations. Here, we report a dielectrophoresis (DEP) enabled microelectrofluidic probe (MeFP) for sequentially separating and patterning of mammalian cells in an open microfluidic system. The MeFP is a microfluidic probe with injection and aspiration apertures, integrated with an array of micro-hump electrodes on its tip. Aligning the MeFP parallel, and in close proximity, to a conductive substrate forms a vertical pin-plate electrode configuration that allows for an integration of DEP forces within the hydrodynamic flow confinement. Upon confining a heterogeneous cell suspension in the gap between the MeFP and the substrate, target cells are selectively captured on the micro-hump electrodes using positive DEP forces, and then deposited on the substrate in defined patterns. Characterization of the MeFP showed an increase in cell-capture efficiency when the MeFP is of a higher microfluidic multipole configuration. Separation of cancer cells from T lymphocytes was demonstrated with capture purity as high as 89.6%. Deposited patterns of isolated cells match the numerically calculated particle trajectories of the evaluated microfluidic multipoles configurations. By adjusting the flow configuration of the MeFP, we show that the patterned co-culture of two different cell types can be dynamically controlled for homotypic and heterotypic cell interaction studies. This work presents a multifunctional microfluidic tool that bio-fabricates selective multicellular patterns directly on an open substrate without the need for confined conduits.
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Affiliation(s)
- Ayoola T Brimmo
- Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates. and Department of Mechanical and Aerospace Engineering, New York University, NY, USA
| | - Anoop Menachery
- Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
| | - Mohammad A Qasaimeh
- Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates. and Department of Mechanical and Aerospace Engineering, New York University, NY, USA
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18
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A System for Analog Control of Cell Culture Dynamics to Reveal Capabilities of Signaling Networks. iScience 2019; 19:586-596. [PMID: 31446223 PMCID: PMC6713801 DOI: 10.1016/j.isci.2019.08.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/15/2019] [Accepted: 08/05/2019] [Indexed: 12/19/2022] Open
Abstract
Cellular microenvironments are dynamic. When exposed to extracellular cues, such as changing concentrations of inflammatory cytokines, cells activate signaling networks that mediate fate decisions. Exploring responses broadly to time-varying microenvironments is essential to understand the information transmission capabilities of signaling networks and how dynamic milieus influence cell fate decisions. Here, we present a gravity-driven cell culture and demonstrate that the system accurately produces user-defined concentration profiles for one or more dynamic stimuli. As proof of principle, we monitor nuclear factor-κB activation in single cells exposed to dynamic cytokine stimulation and reveal context-dependent sensitivity and uncharacterized single-cell response classes distinct from persistent stimulation. Using computational modeling, we find that cell-to-cell variability in feedback rates within the signaling network contributes to different response classes. Models are validated using inhibitors to predictably modulate response classes in live cells exposed to dynamic stimuli. These hidden capabilities, uncovered through dynamic stimulation, provide opportunities to discover and manipulate signaling mechanisms.
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Hernández Vera R, O'Callaghan P, Fatsis-Kavalopoulos N, Kreuger J. Modular microfluidic systems cast from 3D-printed molds for imaging leukocyte adherence to differentially treated endothelial cultures. Sci Rep 2019; 9:11321. [PMID: 31383888 PMCID: PMC6683170 DOI: 10.1038/s41598-019-47475-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 07/17/2019] [Indexed: 12/14/2022] Open
Abstract
Microfluidic systems are very useful for in vitro studies of interactions between blood cells and vascular endothelial cells under flow, and several commercial solutions exist. However, the availability of customizable, user-designed devices is largely restricted to researchers with expertise in photolithography and access to clean room facilities. Here we describe a strategy for producing tailor-made modular microfluidic systems, cast in PDMS from 3D-printed molds, to facilitate studies of leukocyte adherence to endothelial cells. A dual-chamber barrier module was optimized for culturing two endothelial cell populations, separated by a 250 μm wide dividing wall, on a glass slide. In proof-of-principle experiments one endothelial population was activated by TNFα, while the other served as an internal control. The barrier module was thereafter replaced with a microfluidic flow module, enclosing both endothelial populations in a common channel. A suspension of fluorescently-labeled leukocytes was then perfused through the flow module and leukocyte interactions with control and TNFα-treated endothelial populations were monitored in the same field of view. Time-lapse microscopy analysis confirmed the preferential attachment of leukocytes to the TNFα-activated endothelial cells. We conclude that the functionality of these modular microfluidic systems makes it possible to seed and differentially activate adherent cell types, and conduct controlled side-by-side analysis of their capacity to interact with cells in suspension under flow. Furthermore, we outline a number of practical considerations and solutions associated with connecting and switching between the microfluidic modules, and the advantages of simultaneously and symmetrically analyzing control and experimental conditions in such a microfluidic system.
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Affiliation(s)
| | - Paul O'Callaghan
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Nikos Fatsis-Kavalopoulos
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
- Gradientech AB, Uppsala Science Park, Uppsala, Sweden
| | - Johan Kreuger
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.
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Goyette PA, Boulais É, Normandeau F, Laberge G, Juncker D, Gervais T. Microfluidic multipoles theory and applications. Nat Commun 2019; 10:1781. [PMID: 30992450 PMCID: PMC6467910 DOI: 10.1038/s41467-019-09740-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 03/14/2019] [Indexed: 11/09/2022] Open
Abstract
Microfluidic multipoles (MFMs) have been realized experimentally and hold promise for "open-space" biological and chemical surface processing. Whereas convective flow can readily be predicted using hydraulic-electrical analogies, the design of advanced microfluidic multipole is constrained by the lack of simple, accurate models to predict mass transport within them. In this work, we introduce the complete solutions to mass transport in multipolar microfluidics based on the iterative conformal mapping of 2D advection-diffusion around a simple edge into dipoles and multipolar geometries, revealing a rich landscape of transport modes. The models are validated experimentally with a library of 3D printed devices and found in excellent agreement. Following a theory-guided design approach, we further ideate and fabricate two classes of spatiotemporally reconfigurable multipolar devices that are used for processing surfaces with time-varying reagent streams, and to realize a multistep automated immunoassay. Overall, the results set the foundations for exploring, developing, and applying open-space microfluidic multipoles.
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Affiliation(s)
| | - Étienne Boulais
- Department of Engineering Physics, École Polytechnique de Montréal, Montréal, QC, H3T 1J4, Canada
| | - Frédéric Normandeau
- Biomedical Engineering Department and Genome Quebec Innovation Centre, McGill University, Montreal, QC, H3A 0G1, Canada
| | - Gabriel Laberge
- Department of Engineering Physics, École Polytechnique de Montréal, Montréal, QC, H3T 1J4, Canada
| | - David Juncker
- Biomedical Engineering Department and Genome Quebec Innovation Centre, McGill University, Montreal, QC, H3A 0G1, Canada
| | - Thomas Gervais
- Institut de Génie Biomédical, École Polytechnique de Montréal, Montréal, QC, H3T 1J4, Canada. .,Department of Engineering Physics, École Polytechnique de Montréal, Montréal, QC, H3T 1J4, Canada. .,Institut du Cancer de Montréal, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, QC, H2X 0C1, Canada.
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Mehl BT, Martin RS. Integrating 3D Cell Culture of PC12 Cells with Microchip-Based Electrochemical Detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2019; 11:1064-1072. [PMID: 31244918 PMCID: PMC6594695 DOI: 10.1039/c8ay02672f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Developing in vitro cell culture models that accurately mimic in vivo processes in a manner that also enables near real-time analysis of neurotransmitters is an important research area. New technologies being developed such as 3D scaffolds for cell culture and 3D printed microfluidics provide an opportunity for such advancements. In this work, PC12 cells were used as a model system and they were immobilized onto a 3D scaffold of polystyrene (PS) fibers. These fibers were created by electrospinning onto PS sheets, which were laser cut and, after cell seeding, inserted into a 3D printed microfluidic device. The 3D printed device was designed with threads for connecting commercial fittings (to integrate automated pumps and a 4-port injection system) and a steel pin for simple coupling with PDMS/polystyrene analytical devices. A straight PDMS channel was used for simple (and continuous) flow-based detection by sealing onto a PS base containing an embedded gold array working electrode and a platinum pseudo-reference. Electrochemical detection of stimulated catecholamine release was demonstrated. The insert-based system was then integrated with a bilayer valving PDMS device (for microchip electrophoresis) sealed onto a PS base (with electrodes for electrochemical detection). This base was embedded with a Pd decoupler (for grounding the separation voltage and adsorbing hydrogen) and a 33 µm carbon fiber working electrode for in-channel detection. PC12 cells were stimulated in the 3D cell culture device, and the valving/electrophoresis microchip was able to separate and detect dopamine and norepinephrine release. This work demonstrates the ability to integrate 3D cell scaffolds with microchip-based analysis for detection of multiple analytes released from cells.
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Johnston TG, Fellin CR, Carignano A, Nelson A. Poly(alkyl glycidyl ether) hydrogels for harnessing the bioactivity of engineered microbes. Faraday Discuss 2019; 219:58-72. [DOI: 10.1039/c9fd00019d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Herein, we describe a method to produce yeast-laden hydrogel inks for the direct-write 3D printing of cuboidal lattices for immobilized whole-cell catalysis.
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Affiliation(s)
| | | | - Alberto Carignano
- Department of Electrical Engineering
- University of Washington
- Seattle
- USA
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23
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Zhang Q, Mao S, Khan M, Feng S, Zhang W, Li W, Lin JM. In Situ Partial Treatment of Single Cells by Laminar Flow in the “Open Space”. Anal Chem 2018; 91:1644-1650. [DOI: 10.1021/acs.analchem.8b05313] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Qiang Zhang
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Sifeng Mao
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Mashooq Khan
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Shuo Feng
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Wanling Zhang
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Weiwei Li
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Jin-Ming Lin
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
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