A polymeric cell stretching device for real-time imaging with optical microscopy
This paper reports the design, fabrication and characterization of a cell stretching device based on the side stretching approach. Numerical simulation using finite element method provides a guideline for optimizing the geometry and maximizing the output strain of the stretched membrane. An unique P...
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sg-ntu-dr.10356-1068002019-12-06T22:18:38Z A polymeric cell stretching device for real-time imaging with optical microscopy Huang, Yuli Nguyen, Nam-Trung School of Mechanical and Aerospace Engineering This paper reports the design, fabrication and characterization of a cell stretching device based on the side stretching approach. Numerical simulation using finite element method provides a guideline for optimizing the geometry and maximizing the output strain of the stretched membrane. An unique PDMS-based micro fabrication process was developed for obtaining high parallelization, well controlled membrane thickness and an ultra-thin bottom layer that is crucial for the use with confocal microscopes. The stretching experiments are fully automated with both device actuation and image acquisition. A programmable pneumatic control system was built for simultaneous driving of 24 stretching arrays. The actuation signals are synchronized with the image acquisition system to obtain time-lapse recording of cells grown on the stretched membrane. Experimental results verified the characteristics predicted by the simulation. A platform with 15 stretching units was integrated on a standard 24 mm × 50 mm glass slide. Each unit can achieve a maximum strain of more than 60 %. The platform was tested for cell growth under cyclic stretching. The preliminary results show that the device is compatible with all standard microscopes. 2013-11-12T05:36:39Z 2019-12-06T22:18:38Z 2013-11-12T05:36:39Z 2019-12-06T22:18:38Z 2013 2013 Journal Article Huang, Y., & Nguyen, N. T. A polymeric cell stretching device for real-time imaging with optical microscopy. Biomedical Microdevices,in press. https://hdl.handle.net/10356/106800 http://hdl.handle.net/10220/17599 http://dx.doi.org/10.1007/s10544-013-9796-2 en Biomedical microdevices |
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This paper reports the design, fabrication and characterization of a cell stretching device based on the side stretching approach. Numerical simulation using finite element method provides a guideline for optimizing the geometry and maximizing the output strain of the stretched membrane. An unique PDMS-based micro fabrication process was developed for obtaining high parallelization, well controlled membrane thickness and an ultra-thin bottom layer that is crucial for the use with confocal microscopes. The stretching experiments are fully automated with both device actuation and image acquisition. A programmable pneumatic control system was built for simultaneous driving of 24 stretching arrays. The actuation signals are synchronized with the image acquisition system to obtain time-lapse recording of cells grown on the stretched membrane. Experimental results verified the characteristics predicted by the simulation. A platform with 15 stretching units was integrated on a standard 24 mm × 50 mm glass slide. Each unit can achieve a maximum strain of more than 60 %. The platform was tested for cell growth under cyclic stretching. The preliminary results show that the device is compatible with all standard microscopes. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Huang, Yuli Nguyen, Nam-Trung |
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Huang, Yuli Nguyen, Nam-Trung |
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Huang, Yuli Nguyen, Nam-Trung A polymeric cell stretching device for real-time imaging with optical microscopy |
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Huang, Yuli |
title |
A polymeric cell stretching device for real-time imaging with optical microscopy |
title_short |
A polymeric cell stretching device for real-time imaging with optical microscopy |
title_full |
A polymeric cell stretching device for real-time imaging with optical microscopy |
title_fullStr |
A polymeric cell stretching device for real-time imaging with optical microscopy |
title_full_unstemmed |
A polymeric cell stretching device for real-time imaging with optical microscopy |
title_sort |
polymeric cell stretching device for real-time imaging with optical microscopy |
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2013 |
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https://hdl.handle.net/10356/106800 http://hdl.handle.net/10220/17599 http://dx.doi.org/10.1007/s10544-013-9796-2 |
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