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Nguyen ML, Demri N, Lapin B, Di Federico F, Gropplero G, Cayrac F, Hennig K, Gomes ER, Wilhelm C, Roman W, Descroix S. Studying the impact of geometrical and cellular cues on myogenesis with a skeletal muscle-on-chip. LAB ON A CHIP 2024. [PMID: 39072529 DOI: 10.1039/d4lc00417e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
In the skeletal muscle tissue, cells are organized following an anisotropic architecture, which is both required during myogenesis when muscle precursor cells fuse to generate myotubes and for its contractile function. To build an in vitro skeletal muscle tissue, it is therefore essential to develop methods to organize cells in an anisotropic fashion, which can be particularly challenging, especially in 3D. In this study, we present a versatile muscle-on-chip system with adjustable collagen hollow tubes that can be seeded with muscle precursor cells. The collagen acts both as a tube-shaped hollow mold and as an extracellular matrix scaffold that can house other cell types for co-culture. We found that the diameter of the channel affects the organization of the muscle cells and that proper myogenesis was obtained at a diameter of 75 μm. In these conditions, muscle precursor cells fused into long myotubes aligned along these collagen channels, resulting in a fascicle-like structure. These myotubes exhibited actin striations and upregulation of multiple myogenic genes, reflecting their maturation. Moreover, we showed that our chip allowed muscle tissue culture and maturation over a month, with the possibility of fibroblast co-culture embedding in the collagen matrix.
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Affiliation(s)
- M-L Nguyen
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
| | - N Demri
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
| | - B Lapin
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
| | - F Di Federico
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
| | - G Gropplero
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
| | - F Cayrac
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
| | - K Hennig
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Edgar R Gomes
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - C Wilhelm
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
| | - W Roman
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
- Australian Regenerative Medicine Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | - S Descroix
- Laboratoire Physico Chimie Curie, PCC, CNRS UMR168, Institut Curie, Sorbonne University, PSL University, 75005 Paris, France.
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Lapin B, Gropplero G, Vandensteen J, Mazloum M, Bienaimé F, Descroix S, Coscoy S. Decoupling shear stress and pressure effects in the biomechanics of autosomal dominant polycystic kidney disease using a perfused kidney-on-chip. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.18.599137. [PMID: 38948811 PMCID: PMC11212944 DOI: 10.1101/2024.06.18.599137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Kidney tubular cells are submitted to two distinct mechanical forces generated by the urine flow: shear stress and hydrostatic pressure. In addition, the mechanical properties of the surrounding extracellular matrix modulate tubule deformation under constraints. These mechanical factors likely play a role in the pathophysiology of kidney diseases as exemplified by autosomal dominant polycystic kidney disease, in which pressure, flow and matrix stiffness have been proposed to modulate the cystic dilation of tubules with PKD1 mutations. The lack of in vitro systems recapitulating the mechanical environment of kidney tubules impedes our ability to dissect the role of these mechanical factors. Here we describe a perfused kidney-on-chip with tunable extracellular matrix mechanical properties and hydrodynamic constraints, that allows a decoupling of shear stress and flow. We used this system to dissect how these mechanical cues affect Pkd1 -/- tubule dilation. Our results show two distinct mechanisms leading to tubular dilation. For PCT cells (proximal tubule), overproliferation mechanically leads to tubular dilation, regardless of the mechanical context. For mIMCD-3 cells (collecting duct), tube dilation is associated with a squamous cell morphology but not with overproliferation and is highly sensitive to extracellular matrix properties and hydrodynamic constraints. Surprisingly, flow alone suppressed Pkd1 -/- mIMCD-3 tubule dilation observed in static conditions, while the addition of luminal pressure restored it. Our in vitro model emulating nephron geometrical and mechanical organization sheds light on the roles of mechanical constraints in ADPKD and demonstrates the importance of controlling intraluminal pressure in kidney tubule models.
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Affiliation(s)
- Brice Lapin
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physique des Cellules et Cancer, 75005 Paris, France
| | - Giacomo Gropplero
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physique des Cellules et Cancer, 75005 Paris, France
| | - Jessica Vandensteen
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physique des Cellules et Cancer, 75005 Paris, France
| | - Manal Mazloum
- Université de Paris Cité, Institut Necker Enfants Malades-INEM, Département ‘Croissance et Signalisation’, INSERM UMR1151, CNRS UMR 8253 Paris, France
| | - Frank Bienaimé
- Université de Paris Cité, Institut Necker Enfants Malades-INEM, Département ‘Croissance et Signalisation’, INSERM UMR1151, CNRS UMR 8253 Paris, France
- Service de Physiologie Hôpital Necker Enfants-Malades, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France
| | - Stéphanie Descroix
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physique des Cellules et Cancer, 75005 Paris, France
| | - Sylvie Coscoy
- Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physique des Cellules et Cancer, 75005 Paris, France
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3
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Pondman K, Le Gac S, Kishore U. Nanoparticle-induced immune response: Health risk versus treatment opportunity? Immunobiology 2023; 228:152317. [PMID: 36592542 DOI: 10.1016/j.imbio.2022.152317] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/12/2022] [Accepted: 12/21/2022] [Indexed: 12/25/2022]
Abstract
Nanoparticles (NPs) are not only employed in many biomedical applications in an engineered form, but also occur in our environment, in a more hazardous form. NPs interact with the immune system through various pathways and can lead to a myriad of different scenarios, ranging from their quiet removal from circulation by macrophages without any impact for the body, to systemic inflammatory effects and immuno-toxicity. In the latter case, the function of the immune system is affected by the presence of NPs. This review describes, how both the innate and adaptive immune system are involved in interactions with NPs, together with the models used to analyse these interactions. These models vary between simple 2D in vitro models, to in vivo animal models, and also include complex all human organ on chip models which are able to recapitulate more accurately the interaction in the in vivo situation. Thereafter, commonly encountered NPs in both the environment and in biomedical applications and their possible effects on the immune system are discussed in more detail. Not all effects of NPs on the immune system are detrimental; in the final section, we review several promising strategies in which the immune response towards NPs can be exploited to suit specific applications such as vaccination and cancer immunotherapy.
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Affiliation(s)
- Kirsten Pondman
- Applied Microfluidics for BioEngineering Research, MESA+ Institute for Nanotechnology & TechMed Centre, University of Twente, Enschede, the Netherlands.
| | - Séverine Le Gac
- Applied Microfluidics for BioEngineering Research, MESA+ Institute for Nanotechnology & TechMed Centre, University of Twente, Enschede, the Netherlands
| | - Uday Kishore
- Biosciences, Brunel University London, Uxbridge, UK; Department of Veterinary Medicine, U.A.E. University, Al Ain, United Arab Emirates
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Dynamics of Endothelial Engagement and Filopodia Formation in Complex 3D Microscaffolds. Int J Mol Sci 2022; 23:ijms23052415. [PMID: 35269558 PMCID: PMC8910162 DOI: 10.3390/ijms23052415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/08/2022] [Accepted: 02/16/2022] [Indexed: 11/28/2022] Open
Abstract
The understanding of endothelium–extracellular matrix interactions during the initiation of new blood vessels is of great medical importance; however, the mechanobiological principles governing endothelial protrusive behaviours in 3D microtopographies remain imperfectly understood. In blood capillaries submitted to angiogenic factors (such as vascular endothelial growth factor, VEGF), endothelial cells can transiently transdifferentiate in filopodia-rich cells, named tip cells, from which angiogenesis processes are locally initiated. This protrusive state based on filopodia dynamics contrasts with the lamellipodia-based endothelial cell migration on 2D substrates. Using two-photon polymerization, we generated 3D microstructures triggering endothelial phenotypes evocative of tip cell behaviour. Hexagonal lattices on pillars (“open”), but not “closed” hexagonal lattices, induced engagement from the endothelial monolayer with the generation of numerous filopodia. The development of image analysis tools for filopodia tracking allowed to probe the influence of the microtopography (pore size, regular vs. elongated structures, role of the pillars) on orientations, engagement and filopodia dynamics, and to identify MLCK (myosin light-chain kinase) as a key player for filopodia-based protrusive mode. Importantly, these events occurred independently of VEGF treatment, suggesting that the observed phenotype was induced through microtopography. These microstructures are proposed as a model research tool for understanding endothelial cell behaviour in 3D fibrillary networks.
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Myram S, Venzac B, Lapin B, Battistella A, Cayrac F, Cinquin B, Cavaniol C, Gropplero G, Bonnet I, Demolombe S, Descroix S, Coscoy S. A Multitubular Kidney-on-Chip to Decipher Pathophysiological Mechanisms in Renal Cystic Diseases. Front Bioeng Biotechnol 2021; 9:624553. [PMID: 34124016 PMCID: PMC8188354 DOI: 10.3389/fbioe.2021.624553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 03/22/2021] [Indexed: 12/11/2022] Open
Abstract
Autosomal Dominant Polycystic Kidney Disease (ADPKD) is a major renal pathology provoked by the deletion of PKD1 or PKD2 genes leading to local renal tubule dilation followed by the formation of numerous cysts, ending up with renal failure in adulthood. In vivo, renal tubules are tightly packed, so that dilating tubules and expanding cysts may have mechanical influence on adjacent tubules. To decipher the role of this coupling between adjacent tubules, we developed a kidney-on-chip reproducing parallel networks of tightly packed tubes. This original microdevice is composed of cylindrical hollow tubes of physiological dimensions, parallel and closely packed with 100-200 μm spacing, embedded in a collagen I matrix. These multitubular systems were properly colonized by different types of renal cells with long-term survival, up to 2 months. While no significant tube dilation over time was observed with Madin-Darby Canine Kidney (MDCK) cells, wild-type mouse proximal tubule (PCT) cells, or with PCT Pkd1 +/- cells (with only one functional Pkd1 allele), we observed a typical 1.5-fold increase in tube diameter with isogenic PCT Pkd1 -/- cells, an ADPKD cellular model. This tube dilation was associated with an increased cell proliferation, as well as a decrease in F-actin stress fibers density along the tube axis. With this kidney-on-chip model, we also observed that for larger tube spacing, PCT Pkd1 -/- tube deformations were not spatially correlated with adjacent tubes whereas for shorter spacing, tube deformations were increased between adjacent tubes. Our device reveals the interplay between tightly packed renal tubes, constituting a pioneering tool well-adapted to further study kidney pathophysiology.
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Affiliation(s)
- Sarah Myram
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Bastien Venzac
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Brice Lapin
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Aude Battistella
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Fanny Cayrac
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Bertrand Cinquin
- Institut Pierre-Gilles de Gennes, IPGG Technology Platform, UMS 3750 CNRS, Paris, France
| | - Charles Cavaniol
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
- Fluigent SA, France
| | - Giacomo Gropplero
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Isabelle Bonnet
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Sophie Demolombe
- Université Côte d’Azur, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Institut de Pharmacologie Moléculaire et Cellulaire, Labex ICST, Valbonne, France
| | - Stéphanie Descroix
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
| | - Sylvie Coscoy
- Institut Curie, Université PSL (Paris Sciences & Lettres), Sorbonne Université, CNRS UMR 168, Laboratoire Physico Chimie Curie, Paris, France
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Sharma S, Venzac B, Burgers T, Le Gac S, Schlatt S. Microfluidics in male reproduction: is ex vivo culture of primate testis tissue a future strategy for ART or toxicology research? Mol Hum Reprod 2021; 26:179-192. [PMID: 31977028 DOI: 10.1093/molehr/gaaa006] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 01/03/2020] [Indexed: 01/09/2023] Open
Abstract
The significant rise in male infertility disorders over the years has led to extensive research efforts to recapitulate the process of male gametogenesis in vitro and to identify essential mechanisms involved in spermatogenesis, notably for clinical applications. A promising technology to bridge this research gap is organ-on-chip (OoC) technology, which has gradually transformed the research landscape in ART and offers new opportunities to develop advanced in vitro culture systems. With exquisite control on a cell or tissue microenvironment, customized organ-specific structures can be fabricated in in vitro OoC platforms, which can also simulate the effect of in vivo vascularization. Dynamic cultures using microfluidic devices enable us to create stimulatory effect and non-stimulatory culture conditions. Noteworthy is that recent studies demonstrated the potential of continuous perfusion in OoC systems using ex vivo mouse testis tissues. Here we review the existing literature and potential applications of such OoC systems for male reproduction in combination with novel bio-engineering and analytical tools. We first introduce OoC technology and highlight the opportunities offered in reproductive biology in general. In the subsequent section, we discuss the complex structural and functional organization of the testis and the role of the vasculature-associated testicular niche and fluid dynamics in modulating testis function. Next, we review significant technological breakthroughs in achieving in vitro spermatogenesis in various species and discuss the evidence from microfluidics-based testes culture studies in mouse. Lastly, we discuss a roadmap for the potential applications of the proposed testis-on-chip culture system in the field of primate male infertility, ART and reproductive toxicology.
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Affiliation(s)
- Swati Sharma
- Centre for Reproductive Medicine and Andrology, University of Münster, Münster, Germany
| | - Bastien Venzac
- Applied Microfluidics for BioEngineering Research, MESA+ Institute for Nanotechnology and TechMed Centre, University of Twente, Enschede, The Netherlands
| | - Thomas Burgers
- Applied Microfluidics for BioEngineering Research, MESA+ Institute for Nanotechnology and TechMed Centre, University of Twente, Enschede, The Netherlands
| | - Séverine Le Gac
- Applied Microfluidics for BioEngineering Research, MESA+ Institute for Nanotechnology and TechMed Centre, University of Twente, Enschede, The Netherlands
| | - Stefan Schlatt
- Centre for Reproductive Medicine and Andrology, University of Münster, Münster, Germany
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Rein JL, Heja S, Flores D, Carrisoza-Gaytán R, Lin NYC, Homan KA, Lewis JA, Satlin LM. Effect of luminal flow on doming of mpkCCD cells in a 3D perfusable kidney cortical collecting duct model. Am J Physiol Cell Physiol 2020; 319:C136-C147. [PMID: 32401606 DOI: 10.1152/ajpcell.00405.2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The cortical collecting duct (CCD) of the mammalian kidney plays a major role in the maintenance of total body electrolyte, acid/base, and fluid homeostasis by tubular reabsorption and excretion. The mammalian CCD is heterogeneous, composed of Na+-absorbing principal cells (PCs) and acid-base-transporting intercalated cells (ICs). Perturbations in luminal flow rate alter hydrodynamic forces to which these cells in the cylindrical tubules are exposed. However, most studies of tubular ion transport have been performed in cell monolayers grown on or epithelial sheets affixed to a flat support, since analysis of transepithelial transport in native tubules by in vitro microperfusion requires considerable expertise. Here, we report on the generation and characterization of an in vitro, perfusable three-dimensional kidney CCD model (3D CCD), in which immortalized mouse PC-like mpkCCD cells are seeded within a cylindrical channel embedded within an engineered extracellular matrix and subjected to luminal fluid flow. We find that a tight epithelial barrier composed of differentiated and polarized PCs forms within 1 wk. Immunofluorescence microscopy reveals the apical epithelial Na+ channel ENaC and basolateral Na+/K+-ATPase. On cessation of luminal flow, benzamil-inhibitable cell doming is observed within these 3D CCDs consistent with the presence of ENaC-mediated Na+ absorption. Our 3D CCD provides a geometrically and microphysiologically relevant platform for studying the development and physiology of renal tubule segments.
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Affiliation(s)
- Joshua L Rein
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Szilvia Heja
- Division of Pediatric Nephrology and Hypertension, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Daniel Flores
- Division of Pediatric Nephrology and Hypertension, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Rolando Carrisoza-Gaytán
- Division of Pediatric Nephrology and Hypertension, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Neil Y C Lin
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts
| | - Kimberly A Homan
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts
| | - Jennifer A Lewis
- School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts
| | - Lisa M Satlin
- Division of Pediatric Nephrology and Hypertension, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
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Jayagopal A, Brakeman PR, Soler P, Ferrell N, Fissell W, Kroetz DL, Roy S. Apical Shear Stress Enhanced Organic Cation Transport in Human OCT2/MATE1-Transfected Madin-Darby Canine Kidney Cells Involves Ciliary Sensing. J Pharmacol Exp Ther 2019; 369:523-530. [PMID: 30910922 PMCID: PMC11047058 DOI: 10.1124/jpet.118.255026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 02/27/2019] [Indexed: 11/22/2022] Open
Abstract
Active transport by renal proximal tubules plays a significant role in drug disposition. During drug development, estimates of renal excretion are essential to dose determination. Kidney bioreactors that reproduce physiologic cues in the kidney, such as flow-induced shear stress, may better predict in vivo drug behavior than do current in vitro models. In this study, we investigated the role of shear stress on active transport of 4-(4-(dimethylamino)styryl)-N-methylpyridinium iodide (ASP+) by Madin-Darby canine kidney cells exogenously expressing the human organic cation transporters organic cation transporter 2 (OCT2) and multidrug and toxin extrusion protein 1 (MATE1). Cells cultured in a parallel plate under continuous media perfusion formed a tight monolayer with a high barrier to inulin. In response to increasing levels of shear stress (0.2-2 dynes/cm2), cells showed a corresponding increase in transport of ASP+, reaching a maximal 4.2-fold increase at 2 dynes/cm2 compared with cells cultured under static conditions. This transport was inhibited with imipramine, indicating active transport was present under shear stress conditions. Cells exposed to shear stress of 2 dynes/cm2 also showed an increase in RNA expression of both transfected human and endogenous OCT2 (3.7- and 2.0-fold, respectively). Removal of cilia by ammonium sulfate eliminated the effects of shear on ASP+ transport at 0.5 dynes/cm2 with no effect on ASP+ transport under static conditions. These results indicate that shear stress affects active transport of organic cations in renal tubular epithelial cells in a cilia-dependent manner.
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Affiliation(s)
- Aishwarya Jayagopal
- Departments of Bioengineering and Therapeutic Sciences (A.J., P.S., D.L.K., S.R.) and Pediatrics (P.R.B.), University of California San Francisco (UCSF), San Francisco, California; and Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee (N.F., W.F.)
| | - Paul R Brakeman
- Departments of Bioengineering and Therapeutic Sciences (A.J., P.S., D.L.K., S.R.) and Pediatrics (P.R.B.), University of California San Francisco (UCSF), San Francisco, California; and Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee (N.F., W.F.)
| | - Peter Soler
- Departments of Bioengineering and Therapeutic Sciences (A.J., P.S., D.L.K., S.R.) and Pediatrics (P.R.B.), University of California San Francisco (UCSF), San Francisco, California; and Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee (N.F., W.F.)
| | - Nicholas Ferrell
- Departments of Bioengineering and Therapeutic Sciences (A.J., P.S., D.L.K., S.R.) and Pediatrics (P.R.B.), University of California San Francisco (UCSF), San Francisco, California; and Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee (N.F., W.F.)
| | - William Fissell
- Departments of Bioengineering and Therapeutic Sciences (A.J., P.S., D.L.K., S.R.) and Pediatrics (P.R.B.), University of California San Francisco (UCSF), San Francisco, California; and Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee (N.F., W.F.)
| | - Deanna L Kroetz
- Departments of Bioengineering and Therapeutic Sciences (A.J., P.S., D.L.K., S.R.) and Pediatrics (P.R.B.), University of California San Francisco (UCSF), San Francisco, California; and Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee (N.F., W.F.)
| | - Shuvo Roy
- Departments of Bioengineering and Therapeutic Sciences (A.J., P.S., D.L.K., S.R.) and Pediatrics (P.R.B.), University of California San Francisco (UCSF), San Francisco, California; and Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee (N.F., W.F.)
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9
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Nguyen N, Thurgood P, Zhu JY, Pirogova E, Baratchi S, Khoshmanesh K. "Do-it-in-classroom" fabrication of microfluidic systems by replica moulding of pasta structures. BIOMICROFLUIDICS 2018; 12:044115. [PMID: 30174774 PMCID: PMC6102117 DOI: 10.1063/1.5042684] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 07/30/2018] [Indexed: 05/03/2023]
Abstract
Here, we describe a novel method for fabrication of microfluidic structures in classroom environments. This method is based on replica moulding of pasta structures in polydimethylsiloxane. Placing pasta structures on a petroleum jelly base layer enables templating round-shaped structures with controllable cross-sectional profiles. The pasta structures can be easily deformed and combined to create more complex 3D microfluidic structures. Proof-of-concept experiments indicate the capability of this method for studying the mixing of neighbouring flows, generation of droplets, lateral migration of particles, as well as culturing, shear stress stimulation, and imaging of cells. Our "do-it-in-classroom" method bridges the gap between the classroom and the laboratory.
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Affiliation(s)
- Ngan Nguyen
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Peter Thurgood
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Jiu Yang Zhu
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Elena Pirogova
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Sara Baratchi
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia
| | - Khashayar Khoshmanesh
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
- Author to whom correspondence should be addressed:
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