کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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540348 | 871311 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Development and characterization of a bio-hybrid skin-like stretchable electrode Development and characterization of a bio-hybrid skin-like stretchable electrode](/preview/png/540348.png)
This work presents the design, fabrication and characterization of a polymer based stretchable electrode for cell monitoring. The final goal is the development of innovative bio-hybrid skin-like tactile sensors with mammalian cells as core biological elements; to achieve such aim the enabling technological approach is pursued in this investigation. Electrodes are needed to detect cells response, thus the first step of the bio-hybrid system fabrication is the development of a platform able to record such response and transmit it to the external world. The stretchable electrode is composed by a conductive layer (few Ǻ of Ti plus 90 nm of Au) on a polymeric substrate (1 mm thick PDMS membrane). Cellular adhesion was verified and cellular response to an induced electrode strain of 1% was detected through fluorescence microscopy. Fluorescence intensities were 104.82 ± 9.64 a.u. and 129.66 ± 13.06 a.u. prior and during electrode strain, respectively. Electromechanical characterization of the stretchable electrode revealed excellent stability and reliability within the 1% strain, which is the operative range identified for the future tactile sensor application. Results showed that the electrode was conductive up to 14% of strain. Furthermore, frequency impedance measurements demonstrated the electrode capability of detecting presence of cells.
Journal: Microelectronic Engineering - Volume 88, Issue 8, August 2011, Pages 1676–1680