Sensors 2012, 12(8), 11372-11390; doi:10.3390/s120811372

Miniaturized Integrated Platform for Electrical and Optical Monitoring of Cell Cultures

1,* email, 1email, 1email, 1email, 1email, 1email and 2email
Received: 16 May 2012; in revised form: 2 August 2012 / Accepted: 2 August 2012 / Published: 21 August 2012
(This article belongs to the Section Biosensors)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The following paper describes the design and functions of a miniaturized integrated platform for optical and electrical monitoring of cell cultures and the necessary steps in the fabrication and testing of a silicon microchip Micro ElectroMechanical Systems (MEMS)-based technology for cell data recording, monitoring and stimulation. The silicon microchip consists of a MEMS machined device containing a shank of 240 μm width, 3 mm long and 50 μm thick and an enlarged area of 5 mm × 5 mm hosting the pads for electrical connections. Ten platinum electrodes and five sensors are placed on the shank and are connected with the external electronics through the pads. The sensors aim to monitor the pH, the temperature and the impedance of the cell culture. The electrodes are bidirectional and can be used both for electrical potential recording and stimulation of cells. The fabrication steps are presented, along with the electrical and optical characterization of the system. The target of the research is to develop a new and reconfigurable platform according to the particular applications needs, as a tool for the biologist, chemists and medical doctors working is the field of cell culture monitoring in terms of growth, maintenance conditions, reaction to electrical or chemical stimulation (drugs, toxicants, etc.). HaCaT (Immortalised Human Keratinocyte) cell culture has been used for demonstration purposes in order to provide information on the platform electrical and optical functions.
Keywords: integrated microsensors and microelectrodes; optical and electrical testing; miniaturized platform; cell culture monitoring
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MDPI and ACS Style

Moldovan, C.; Iosub, R.; Codreanu, C.; Firtat, B.; Necula, D.; Brasoveanu, C.; Stan, I. Miniaturized Integrated Platform for Electrical and Optical Monitoring of Cell Cultures. Sensors 2012, 12, 11372-11390.

AMA Style

Moldovan C, Iosub R, Codreanu C, Firtat B, Necula D, Brasoveanu C, Stan I. Miniaturized Integrated Platform for Electrical and Optical Monitoring of Cell Cultures. Sensors. 2012; 12(8):11372-11390.

Chicago/Turabian Style

Moldovan, Carmen; Iosub, Rodica; Codreanu, Cecilia; Firtat, Bogdan; Necula, Daniel; Brasoveanu, Costin; Stan, Ion. 2012. "Miniaturized Integrated Platform for Electrical and Optical Monitoring of Cell Cultures." Sensors 12, no. 8: 11372-11390.

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