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Printable Bioelectronics To Investigate Functional Biological Interfaces
Author(s) -
Manoli Kyriaki,
Magliulo Maria,
Mulla Mohammad Yusuf,
Singh Mandeep,
Sabbatini Luigia,
Palazzo Gerardo,
Torsi Luisa
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201502615
Subject(s) - bioelectronics , capacitance , transistor , capacitor , graphene , materials science , nanotechnology , optoelectronics , electrolyte , negative impedance converter , biosensor , electrical engineering , chemistry , electrode , voltage , engineering , voltage source
Thin‐film transistors can be used as high‐performance bioelectronic devices to accomplish tasks such as sensing or controlling the release of biological species as well as transducing the electrical activity of cells or even organs, such as the brain. Organic, graphene, or zinc oxide are used as convenient printable semiconducting layers and can lead to high‐performance low‐cost bioelectronic sensing devices that are potentially very useful for point‐of‐care applications. Among others, electrolyte‐gated transistors are of interest as they can be operated as capacitance‐modulated devices, because of the high capacitance of their charge double layers. Specifically, it is the capacitance of the biolayer, being lowest in a series of capacitors, which controls the output current of the device. Such an occurrence allows for extremely high sensitivity towards very weak interactions. All the aspects governing these processes are reviewed here.