TY - JOUR
T1 - An inkjet-printed field-effect transistor for label-free biosensing
AU - Medina-Sánchez, Mariana
AU - Martínez-Domingo, Carme
AU - Ramon, Eloi
AU - Merkoçi, Arben
PY - 2014/10/29
Y1 - 2014/10/29
N2 - © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. A flexible, biological field-effect transistor (BioFET) for use in biosensing is reported. The BioFET is based on an organic thin-film transistor (OTFT) fabricated mainly by inkjet printing and subsequently functionalized with antibodies for protein recognition. The BioFET is assessed for label-free detection of a model protein, human immunoglobulin G (HIgG). It is characterized electrically to evaluate the contribution of each step in the functionalization of the OTFT and to detect the presence of the target protein. The fabrication, structure, materials optimization, electrical characteristics, and functionality of the starting OTFT and final BioFET are also discussed. Different materials are evaluated for the top insulator layer, with the aim of protecting the lower layers from the electrolyte and preserving the BioFET electrical performance.
AB - © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. A flexible, biological field-effect transistor (BioFET) for use in biosensing is reported. The BioFET is based on an organic thin-film transistor (OTFT) fabricated mainly by inkjet printing and subsequently functionalized with antibodies for protein recognition. The BioFET is assessed for label-free detection of a model protein, human immunoglobulin G (HIgG). It is characterized electrically to evaluate the contribution of each step in the functionalization of the OTFT and to detect the presence of the target protein. The fabrication, structure, materials optimization, electrical characteristics, and functionality of the starting OTFT and final BioFET are also discussed. Different materials are evaluated for the top insulator layer, with the aim of protecting the lower layers from the electrolyte and preserving the BioFET electrical performance.
U2 - https://doi.org/10.1002/adfm.201401180
DO - https://doi.org/10.1002/adfm.201401180
M3 - Article
VL - 24
SP - 6291
EP - 6302
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
ER -