A hybrid solid-liquid polymer photodiode for the bioenvironment

We demonstrate that a prototypical semiconducting polymer, poly[2-methoxy-5-( 2′ -ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) maintains unaltered its optoelectronic properties throughout the various steps for neural preparation. Films of MEH-PPV, after prolonged immersion in water or buffer solution, are characterized by linear and nonlinear optical spectroscopy. Based on this result, we introduce a hybrid solid-liquid photodiode based on MEH-PPV, in which we use culturing media as liquid, ionic cathodes. The hybrid device is proposed as an active interface between living tissue and conducting polymers for cell diagnostic and neural implants.


Published in:
Applied Physics Letters, 94, 24, 243501
Year:
2009
Publisher:
American Institute of Physics
ISSN:
0003-6951
Laboratories:




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