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Paper, print media and biomaterials

LGP2, a center of innovative research
LGP2, a center of innovative research

> Research

Printed biocathode for implantable biofuel cells

Published on May 18, 2016
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PhD Defense April 13, 2016

Awatef Laaroussi, LGP2's Ph.D. student, defended her Ph.D. thesis: "Flexible biocathode manufacturing by printing processes for implantable enzymatic biofuel cells".

PAG-car_these3.jpg

PAG-car_these3.jpg

This University Grenoble Alpes doctoral thesis was prepared under the supervision of the Professors Naceur Belgacem and Didier Chaussy, and of Nadège Reverdy-Bruas, Associate Professor (Grenoble INP-Pagora / LGP2).

Enzymatic biofuel cells, capable of converting efficiently the glucose from extracellular fluid into electrical energy, are a power source for implantable devices. However, the power output generated by these cells is not sufficient to fulfill the energy required by implantable artificial organs. Therefore, a new packaging architecture design based on flexible materials derived from printing technologies has been explored in order to enhance the power output of this cell.

This work demonstrates the relevance of printing processes such as ultrasonic spray and gravure to develop homogeneous, thin and flexible biocathodes. During this work, a carbon nanotubes / surfactant suspensions were deposited on a hydrophobic flexible substrate (carbon paper). Despite the poor printability of the substrate, flexible active layers were obtained (thickness between 5 and 10 µm).

LGP2 Ph.D. thesis (2016)

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Date of update May 18, 2016

Grenoble INP Institut d'ingénierie Univ. Grenoble Alpes