Simple assessment of viability in 2D and 3D cell microarrays using single step digital imaging

Simple and rapid imaging and analysis of 2D and 3D cell culture compatible with miniaturized arrays of nanoliter droplets are essential for high-throughput screening and personalized medicine applications. In this study, we have developed a simple one-step, cost-effective and sensitive colorimetric...

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Main Authors: Anna A. Popova, Markus Reischl, Daniel Kazenmaier, Haijun Cui, Timo Amberger, Pavel A. Levkin
Format: Article
Language:English
Published: Elsevier 2022-02-01
Series:SLAS Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2472630321000170
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author Anna A. Popova
Markus Reischl
Daniel Kazenmaier
Haijun Cui
Timo Amberger
Pavel A. Levkin
author_facet Anna A. Popova
Markus Reischl
Daniel Kazenmaier
Haijun Cui
Timo Amberger
Pavel A. Levkin
author_sort Anna A. Popova
collection DOAJ
description Simple and rapid imaging and analysis of 2D and 3D cell culture compatible with miniaturized arrays of nanoliter droplets are essential for high-throughput screening and personalized medicine applications. In this study, we have developed a simple one-step, cost-effective and sensitive colorimetric method for the analysis of cell viability in 2D and 3D cell cultures on a nanoliter droplet microarray. The method utilizes a flatbed document scanner that detects a color change in response to cell metabolism in nanoliter droplets with high sensitivity in a single step without the need for expensive specialized equipment. This new nanoliter-based method is faster and more sensitive than equivalent methods using multi-well plate assays. The method detects quantifiable signal from as few as 10 cells and requires only 5 min. This is 2.5 to 10-fold more sensitive and 12 times faster than the same assay in multi-well plates. The method is simple, affordable, fast and sensitive. It can be used for various applications including high-throughput cell-based and biochemical screenings.
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spelling doaj.art-6bd1d3dcffa44de8b690329655424b3c2022-12-22T01:43:56ZengElsevierSLAS Technology2472-63032022-02-012714453Simple assessment of viability in 2D and 3D cell microarrays using single step digital imagingAnna A. Popova0Markus Reischl1Daniel Kazenmaier2Haijun Cui3Timo Amberger4Pavel A. Levkin5Karlsruhe Institute of Technology, Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; Corresponding authorKarlsruhe Institute of Technology (KIT), Institute for Automation and Applied Informatics, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyKarlsruhe Institute of Technology, Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyKarlsruhe Institute of Technology, Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyKarlsruhe Institute of Technology, Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyKarlsruhe Institute of Technology, Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; Karlsruhe Institute of Technology (KIT), Institute of Organic Chemistry, Fritz-Haber Weg 6, 76131 Karlsruhe, Germany; Corresponding authorSimple and rapid imaging and analysis of 2D and 3D cell culture compatible with miniaturized arrays of nanoliter droplets are essential for high-throughput screening and personalized medicine applications. In this study, we have developed a simple one-step, cost-effective and sensitive colorimetric method for the analysis of cell viability in 2D and 3D cell cultures on a nanoliter droplet microarray. The method utilizes a flatbed document scanner that detects a color change in response to cell metabolism in nanoliter droplets with high sensitivity in a single step without the need for expensive specialized equipment. This new nanoliter-based method is faster and more sensitive than equivalent methods using multi-well plate assays. The method detects quantifiable signal from as few as 10 cells and requires only 5 min. This is 2.5 to 10-fold more sensitive and 12 times faster than the same assay in multi-well plates. The method is simple, affordable, fast and sensitive. It can be used for various applications including high-throughput cell-based and biochemical screenings.http://www.sciencedirect.com/science/article/pii/S2472630321000170Droplet microarrayColorimetryHydrophobicityViability assaysDigital imaging
spellingShingle Anna A. Popova
Markus Reischl
Daniel Kazenmaier
Haijun Cui
Timo Amberger
Pavel A. Levkin
Simple assessment of viability in 2D and 3D cell microarrays using single step digital imaging
SLAS Technology
Droplet microarray
Colorimetry
Hydrophobicity
Viability assays
Digital imaging
title Simple assessment of viability in 2D and 3D cell microarrays using single step digital imaging
title_full Simple assessment of viability in 2D and 3D cell microarrays using single step digital imaging
title_fullStr Simple assessment of viability in 2D and 3D cell microarrays using single step digital imaging
title_full_unstemmed Simple assessment of viability in 2D and 3D cell microarrays using single step digital imaging
title_short Simple assessment of viability in 2D and 3D cell microarrays using single step digital imaging
title_sort simple assessment of viability in 2d and 3d cell microarrays using single step digital imaging
topic Droplet microarray
Colorimetry
Hydrophobicity
Viability assays
Digital imaging
url http://www.sciencedirect.com/science/article/pii/S2472630321000170
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