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Xu C, Wang K, Huang P, Liu D, Guan Y. Single-Cell Isolation Microfluidic Chip Based on Thermal Bubble Micropump Technology. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23073623. [PMID: 37050683 PMCID: PMC10099219 DOI: 10.3390/s23073623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/25/2023] [Accepted: 03/29/2023] [Indexed: 05/31/2023]
Abstract
The isolation of single cells is essential for the development of single cell analysis methods, such as single-cell sequencing, monoclonal antibodies, and drug development. Traditional single-cell isolation techniques include flow cytometry (FACS), laser capture microdissection (LCM), micromanipulation, etc., but their operations are complex and have low throughput. Here, we present a microfluidic chip that can isolate individual cells from cell suspension and release them onto a well plate. It uses thermal bubble micropump technology to drive the fluid flow, and single-cell isolation is achieved by matching the flow resistance of the flow channel. Therefore, injection pumps and peristaltic pumps are not required for cell loading. Because of its small size, we can integrate hundreds of single-cell functional modules, which makes high-throughput single-cell isolation possible. For polystyrene beads, the capture rate of the single bead is close to 100%. Finally, the method has been applied to cells, and the capture rate of the single cell is also about 75%. This is a promising method for single-cell isolation.
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Affiliation(s)
- Chao Xu
- School of Microelectronics, Shanghai University, Shanghai 201800, China
| | - Kun Wang
- Shanghai Aure Technology Limited Company, Shanghai 201800, China
| | - Peng Huang
- Shanghai Aure Technology Limited Company, Shanghai 201800, China
| | - Demeng Liu
- School of Microelectronics, Shanghai University, Shanghai 201800, China
- Shanghai Aure Technology Limited Company, Shanghai 201800, China
| | - Yimin Guan
- School of Microelectronics, Shanghai University, Shanghai 201800, China
- Shanghai Aure Technology Limited Company, Shanghai 201800, China
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2
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Zisis T, Schwarz J, Balles M, Kretschmer M, Nemethova M, Chait R, Hauschild R, Lange J, Guet C, Sixt M, Zahler S. Sequential and Switchable Patterning for Studying Cellular Processes under Spatiotemporal Control. ACS APPLIED MATERIALS & INTERFACES 2021; 13:35545-35560. [PMID: 34283577 PMCID: PMC9282641 DOI: 10.1021/acsami.1c09850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Attachment of adhesive molecules on cell culture surfaces to restrict cell adhesion to defined areas and shapes has been vital for the progress of in vitro research. In currently existing patterning methods, a combination of pattern properties such as stability, precision, specificity, high-throughput outcome, and spatiotemporal control is highly desirable but challenging to achieve. Here, we introduce a versatile and high-throughput covalent photoimmobilization technique, comprising a light-dose-dependent patterning step and a subsequent functionalization of the pattern via click chemistry. This two-step process is feasible on arbitrary surfaces and allows for generation of sustainable patterns and gradients. The method is validated in different biological systems by patterning adhesive ligands on cell-repellent surfaces, thereby constraining the growth and migration of cells to the designated areas. We then implement a sequential photopatterning approach by adding a second switchable patterning step, allowing for spatiotemporal control over two distinct surface patterns. As a proof of concept, we reconstruct the dynamics of the tip/stalk cell switch during angiogenesis. Our results show that the spatiotemporal control provided by our "sequential photopatterning" system is essential for mimicking dynamic biological processes and that our innovative approach has great potential for further applications in cell science.
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Affiliation(s)
- Themistoklis Zisis
- Department
of Pharmacy, Center for Drug Research, Ludwig-Maximilians-University
Munich, Butenandtstraße 5, 81377 Munich, Germany
| | - Jan Schwarz
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
- ibidi
GmbH, Am Klopferspitz
19, 82152 Martinsried, Germany
| | - Miriam Balles
- ibidi
GmbH, Am Klopferspitz
19, 82152 Martinsried, Germany
| | - Maibritt Kretschmer
- Department
of Pharmacy, Center for Drug Research, Ludwig-Maximilians-University
Munich, Butenandtstraße 5, 81377 Munich, Germany
| | - Maria Nemethova
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Remy Chait
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Robert Hauschild
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Janina Lange
- Faculty
of Physics and Center for NanoScience, Ludwig-Maximilians-University
Munich, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Calin Guet
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Michael Sixt
- Institute
of Science and Technology Austria (IST Austria), Am Campus 1, 3400 Klosterneuburg, Austria
| | - Stefan Zahler
- Department
of Pharmacy, Center for Drug Research, Ludwig-Maximilians-University
Munich, Butenandtstraße 5, 81377 Munich, Germany
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3
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Murphy TW, Zhang Q, Naler LB, Ma S, Lu C. Recent advances in the use of microfluidic technologies for single cell analysis. Analyst 2017; 143:60-80. [PMID: 29170786 PMCID: PMC5839671 DOI: 10.1039/c7an01346a] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The inherent heterogeneity in cell populations has become of great interest and importance as analytical techniques have improved over the past decades. With the advent of personalized medicine, understanding the impact of this heterogeneity has become an important challenge for the research community. Many different microfluidic approaches with varying levels of throughput and resolution exist to study single cell activity. In this review, we take a broad view of the recent microfluidic developments in single cell analysis based on microwell, microchamber, and droplet platforms. We cover physical, chemical, and molecular biology approaches for cellular and molecular analysis including newly emerging genome-wide analysis.
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Affiliation(s)
- Travis W Murphy
- Department of Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
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4
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Funano SI, Ota N, Sato A, Tanaka Y. A method of packaging molecule/cell-patterns in an open space into a glass microfluidic channel by combining pressure-based low/room temperature bonding and fluorosilane patterning. Chem Commun (Camb) 2017; 53:11193-11196. [DOI: 10.1039/c7cc04744d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A fabrication method of a “post-molecule/cell patterned” glass microchip was developed by pressure-based bonding and patterning with a fluorosilane coupling reagent.
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Affiliation(s)
| | | | - Asako Sato
- Quantitative Biology Center (QBiC)
- RIKEN
- Suita
- Japan
| | - Yo Tanaka
- Quantitative Biology Center (QBiC)
- RIKEN
- Suita
- Japan
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5
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FUNANO SI, TANAKA N, TANAKA Y. Analysis of Long-term Morphological Changes of Micro-patterned Molecules and Cells on PDMS and Glass Surfaces. ANAL SCI 2017; 33:723-725. [DOI: 10.2116/analsci.33.723] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | | | - Yo TANAKA
- Quantitative Biology Center (QBiC), RIKEN
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6
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Vasdekis AE, Stephanopoulos G. Review of methods to probe single cell metabolism and bioenergetics. Metab Eng 2015; 27:115-135. [PMID: 25448400 PMCID: PMC4399830 DOI: 10.1016/j.ymben.2014.09.007] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 09/18/2014] [Accepted: 09/19/2014] [Indexed: 11/26/2022]
Abstract
Single cell investigations have enabled unexpected discoveries, such as the existence of biological noise and phenotypic switching in infection, metabolism and treatment. Herein, we review methods that enable such single cell investigations specific to metabolism and bioenergetics. Firstly, we discuss how to isolate and immobilize individuals from a cell suspension, including both permanent and reversible approaches. We also highlight specific advances in microbiology for its implications in metabolic engineering. Methods for probing single cell physiology and metabolism are subsequently reviewed. The primary focus therein is on dynamic and high-content profiling strategies based on label-free and fluorescence microspectroscopy and microscopy. Non-dynamic approaches, such as mass spectrometry and nuclear magnetic resonance, are also briefly discussed.
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Affiliation(s)
- Andreas E Vasdekis
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99354, USA.
| | - Gregory Stephanopoulos
- Department of Chemical Engineering, Massachusetts Institute of Technology, Room 56-469, Cambridge, MA 02139, USA.
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7
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A Peristaltic Pump Integrated on a 100% Glass Microchip Using Computer Controlled Piezoelectric Actuators. MICROMACHINES 2014. [DOI: 10.3390/mi5020289] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Biswas A, Saha A, Ghosh D, Jana B, Ghosh S. Co- and distinct existence of Tris-NTA and biotin functionalities on individual and adjacent micropatterned surfaces generated by photo-destruction. SOFT MATTER 2014; 10:2341-2345. [PMID: 24623362 DOI: 10.1039/c3sm53000k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Micropatterned surfaces with Tris-NTA and biotin functionalities both in the same micropattern as well as individually in adjacent micropatterns are generated by UV light illumination through photo-masks. These surfaces are extremely useful for the immobilization of oligohistidine and biotin tagged multiple biomolecules/proteins.
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Affiliation(s)
- Atanu Biswas
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, West Bengal, India.
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9
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Biswas A, Saha A, Jana B, Kurkute P, Mondal G, Ghosh S. A Biotin Micropatterned Surface Generated by Photodestruction Serves as a Novel Platform for Microtubule Organisation and DNA Hybridisation. Chembiochem 2013; 14:689-94. [DOI: 10.1002/cbic.201300027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Indexed: 12/28/2022]
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10
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Cheng N, Cao X. Neuron-like PC12 cell patterning on a photoactive self-assembled monolayer. J Biomed Mater Res A 2013; 101:3066-75. [DOI: 10.1002/jbm.a.34615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Revised: 01/18/2013] [Accepted: 01/22/2013] [Indexed: 12/19/2022]
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11
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Peng Lee C, Hsin Chen Y, Hang Wei Z. Fabrication of hexagonally packed cell culture substrates using droplet formation in a T-shaped microfluidic junction. BIOMICROFLUIDICS 2013; 7:14101. [PMID: 24396524 PMCID: PMC3555912 DOI: 10.1063/1.4774315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 12/17/2012] [Indexed: 05/14/2023]
Abstract
A method is here proposed to fabricate ordered hexagonally packed cell culture substrates with hexagonally arranged cell patterning areas. We generated photo-sensitive polymeric microdroplets in a T-shaped microfluidic junction by an immiscible liquid, and then solidified the collective self-assembled hexagonal droplet array to obtain the cell culture substrate, on which we took the grooves formed between the solidified droplets as the hexagonally arranged cell patterning areas. The most promising advantage of our method is that we can actively tune the droplet size by simply adopting different volumetric flow rates of the two immiscible fluids to form cell culture substrates with differently sized cell patterning areas. Besides, the examination results of the cell culture substrate's characteristics validate whether our method is capable of creating substrates with high spatial uniformity. To verify the cell patterning function of our cell culture substrates, we used the semi-adherent RAW cells to demonstrate the effectiveness of patterning of suspended/adherent cells before/after adhesion. Over 90% cell viability and cell patterning rate suggest that our method may be a promising approach for future applications of cell patterning on biochips.
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Affiliation(s)
- Chiun Peng Lee
- Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan
| | - Yi Hsin Chen
- Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan
| | - Zung Hang Wei
- Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan
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12
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Tanaka Y. Electric actuating valves incorporated into an all glass-based microchip exploiting the flexibility of ultra thin glass. RSC Adv 2013. [DOI: 10.1039/c3ra41218k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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13
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Jang K, Tanaka Y, Wakabayashi J, Ishii R, Sato K, Mawatari K, Nilsson M, Kitamori T. Selective cell capture and analysis using shallow antibody-coated microchannels. BIOMICROFLUIDICS 2012; 6:44117. [PMID: 24339850 PMCID: PMC3555508 DOI: 10.1063/1.4771968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 11/28/2012] [Indexed: 06/03/2023]
Abstract
Demand for analysis of rare cells such as circulating tumor cells in blood at the single molecule level has recently grown. For this purpose, several cell separation methods based on antibody-coated micropillars have been developed (e.g., Nagrath et al., Nature 450, 1235-1239 (2007)). However, it is difficult to ensure capture of targeted cells by these methods because capture depends on the probability of cell-micropillar collisions. We developed a new structure that actively exploits cellular flexibility for more efficient capture of a small number of cells in a target area. The depth of the sandwiching channel was slightly smaller than the diameter of the cells to ensure contact with the channel wall. For cell selection, we used anti-epithelial cell adhesion molecule antibodies, which specifically bind epithelial cells. First, we demonstrated cell capture with human promyelocytic leukemia (HL-60) cells, which are relatively homogeneous in size; in situ single molecule analysis was verified by our rolling circle amplification (RCA) method. Then, we used breast cancer cells (SK-BR-3) in blood, and demonstrated selective capture and cancer marker (HER2) detection by RCA. Cell capture by antibody-coated microchannels was greater than with negative control cells (RPMI-1788 lymphocytes) and non-coated microchannels. This system can be used to analyze small numbers of target cells in large quantities of mixed samples.
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Affiliation(s)
- Kihoon Jang
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
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14
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Byambaa B, Konno T, Ishihara K. Cell adhesion control on photoreactive phospholipid polymer surfaces. Colloids Surf B Biointerfaces 2012; 99:1-6. [DOI: 10.1016/j.colsurfb.2011.08.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 08/30/2011] [Accepted: 08/31/2011] [Indexed: 11/29/2022]
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15
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Wang YN, Yang RJ, Ju WJ, Wu MC, Fu LM. Convenient quantification of methanol concentration detection utilizing an integrated microfluidic chip. BIOMICROFLUIDICS 2012; 6:34111. [PMID: 23940501 PMCID: PMC3432083 DOI: 10.1063/1.4746246] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 07/31/2012] [Indexed: 05/23/2023]
Abstract
A rapid and simple technique is proposed for methanol concentration detection using a PMMA (Polymethyl-Methacrylate) microfluidic chip patterned using a commercially available CO2 laser scriber. In the proposed device, methanol and methanol oxidase (MOX) are injected into a three-dimensional circular chamber and are mixed via a vortex stirring effect. The mixture is heated to prompt the formation of formaldehyde and is flowed into a rectangular chamber, to which fuchsin-sulphurous acid is then added. Finally, the microchip is transferred to a UV spectrophotometer for methanol detection purposes. The experimental results show that a correlation coefficient of R(2) = 0.9940 is obtained when plotting the optical density against the methanol concentration for samples and an accuracy as high as 93.1% are compared with the determined by the high quality gas chromatography with concentrations in the range of 2 ∼ 100 ppm. The methanol concentrations of four commercial red wines are successfully detected using the developed device. Overall, the results show that the proposed device provides a rapid and accurate means of detecting the methanol concentration for a variety of applications in the alcoholic beverage inspection and control field.
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Affiliation(s)
- Yao-Nan Wang
- Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
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16
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Hong TF, Ju WJ, Tsai CH, Wang YN, Fu LM. An Integrated Microfluidic Chip for Rapid Methanol Detection. INTERNATIONAL JOURNAL OF AUTOMATION AND SMART TECHNOLOGY 2012. [DOI: 10.5875/ausmt.v2i1.112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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17
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Shin DS, Seo JH, Sutcliffe JL, Revzin A. Photolabile micropatterned surfaces for cell capture and release. Chem Commun (Camb) 2011; 47:11942-4. [PMID: 21970983 DOI: 10.1039/c1cc15046d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for capture and release of cells was developed using a photolabile linker and antibody-attached glass surface with a poly(ethylene glycol) (PEG)-pattern.
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Affiliation(s)
- Dong-Sik Shin
- Department of Biomedical Engineering, University of California, Davis, 451 East Health Sciences Dr #2619, Davis, CA 95616, USA
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18
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Cheng N, Cao X. Photosensitive chitosan to control cell attachment. J Colloid Interface Sci 2011; 361:71-8. [DOI: 10.1016/j.jcis.2011.05.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 05/13/2011] [Accepted: 05/13/2011] [Indexed: 01/09/2023]
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19
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Ota H, Kodama T, Miki N. Rapid formation of size-controlled three dimensional hetero-cell aggregates using micro-rotation flow for spheroid study. BIOMICROFLUIDICS 2011; 5:34105-3410515. [PMID: 22662035 PMCID: PMC3364823 DOI: 10.1063/1.3609969] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Accepted: 06/21/2011] [Indexed: 05/11/2023]
Abstract
Spheroids that are formed from aggregated cells have enhanced biological function compared to individual cells. In particular, hetero-spheroids composed of different types of cells, such as hepatocytes and endothelial cells, express tissue specific functions at a high level, which is advantageous for more precise drug screening and biological research. In this study, we propose rapid formation of size-controlled three-dimensional hetero-cell aggregates consisting of hepatocytes and endothelial cells using micro-rotation flow. Based on previous data, these aggregates are expected to ultimately become hetero-spheroids. The hepatocytes are coated with collagen gel films less than 200 nm thick, which were experimentally verified to increase adhesion strength between hepatocytes and endothelial cells. Gel-coated hepatocytes and endothelial cells are collected in an array by micro-rotational flow, thereby forming hetero-cell aggregates within 2 min. This array allowed the size of the three-dimensional cell aggregates to be hydrodynamically controlled, with standard deviations of less than 19%, by varying the cell density of the medium without altering the device geometry. Endothelial cells were successfully and uniformly dispersed in the aggregates. The proposed microfluidic device, with its capability of rapidly forming size-controlled hetero-cell aggregates, will offer an efficient experimental platform for future hetero-spheroid study that will contribute to drug screening and regenerative medicine.
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Affiliation(s)
- Hiroki Ota
- Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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20
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Microchip-based cellular biochemical systems for practical applications and fundamental research: from microfluidics to nanofluidics. Anal Bioanal Chem 2011; 402:99-107. [DOI: 10.1007/s00216-011-5296-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 07/23/2011] [Accepted: 07/27/2011] [Indexed: 01/09/2023]
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21
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Arakawa T, Noguchi M, Sumitomo K, Yamaguchi Y, Shoji S. High-throughput single-cell manipulation system for a large number of target cells. BIOMICROFLUIDICS 2011; 5:14114. [PMID: 21523252 PMCID: PMC3082354 DOI: 10.1063/1.3567101] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 02/15/2011] [Indexed: 05/15/2023]
Abstract
A sequential and high-throughput single-cell manipulation system for a large volume of cells was developed and the successive manipulation for single cell involving single-cell isolation, individual labeling, and individual rupture was realized in a microhydrodynamic flow channel fabricated by using two-dimensional simple flow channels. This microfluidic system consisted of the successive single-cell handlings of single-cell isolation from a large number of cells in cell suspension, labeling each isolated single cell and the lysate extraction from each labeled single cell. This microfluidic system was composed of main channels, cell-trapping pockets, drain channels, and single-cell content collection channels which were fabricated by polydimethylsiloxane. We demonstrated two kinds of prototypes for sequential single-cell manipulations, one was equipped with 16 single-cell isolation pockets in microchannel and the other was constructed of 512 single-cell isolation pockets. In this study, we demonstrated high-throughput and high-volume single-cell isolation with 512 pocket type device. The total number of isolated single cells in each isolation pocket from the cell suspension at a time was 426 for the cell line of African green monkey kidney, COS-1, and 360 for the rat primary brown preadipocytes, BAT. All isolated cells were stained with fluorescence dye injected into the same microchannel successfully. In addition, the extraction and collection of the cell contents was demonstrated using isolated stained COS-1 cells. The cell contents extracted from each captured cell were individually collected within each collection channel by local hydrodynamic flow. The sequential trapping, labeling, and content extraction with 512 pocket type devices realized high-throughput single-cell manipulations for innovative single-cell handling, feasible staining, and accurate cell rupture.
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22
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JANG K, NGO HTT, TANAKA Y, XU Y, MAWATARI K, KITAMORI T. Development of a Microfluidic Platform for Single-cell Secretion Analysis Using a Direct Photoactive Cell-attaching Method. ANAL SCI 2011; 27:973-8. [DOI: 10.2116/analsci.27.973] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Kihoon JANG
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo
| | - Hong Trang Thi NGO
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo
| | - Yo TANAKA
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo
- Japan Science and Technology Agency (JST)
- Quantitative Biology Center (QBiC), RIKEN
| | - Yan XU
- Nanoscience and Nanotechnology Research Center, Research Organization for 21st Century, Osaka Prefecture University
| | - Kazuma MAWATARI
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo
- Japan Science and Technology Agency (JST)
| | - Takehiko KITAMORI
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo
- Japan Science and Technology Agency (JST)
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23
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Ralston J, Zhou J. Preface to special topic: surface modification, wetting, and biological interfaces (guest editors: john ralston and jingfang zhou). BIOMICROFLUIDICS 2010; 4:32101. [PMID: 21045922 PMCID: PMC2967233 DOI: 10.1063/1.3493644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Accepted: 09/07/2010] [Indexed: 05/30/2023]
Abstract
This Special Topic section of Biomicrofluidics on "Surface Modification, Wetting, and Biological Interfaces," is discussed. The topic is very timely and one that is tremendously relevant to the microfluidics and nanofluidics community.
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Affiliation(s)
- John Ralston
- Ian Wark Research Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia
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