PCB-implemented graphene electrolyte-gated field-effect transistors for biosensing applications

Sotirios Papamatthaiou; Pedro Estrela; Despina Moschou

PCB-implemented graphene electrolyte-gated field-effect transistors for biosensing applications

Sotirios Papamatthaiou, Pedro Estrela, Despina Moschou

Research output: Contribution to conference › Paper

Abstract

In this work we integrate Electrolyte-Gated Field-Effect transistors (EGFET) in Lab-on-Printed Circuit Board (Lab-on-PCB) microsystems for the first time, aiming for the implementation of an ultra-high sensitivity biosensing platform that can still be cost-effectively mass-produced. Silver-nanoparticle ink was ink-jet printed on PCB-based gold electrodes and was chlorinated to fabricate stable pseudo-reference electrodes. Graphene ink was drop-casted to create the transistor channel. Preliminary results with single-stranded DNA (ssDNA) immobilized on the graphene surface revealed systematic shift in Vdirac with increasing complementary DNA concentration.

Original language	English
Publication status	Acceptance date - 1 Jul 2019
Event	Miniaturized Systems for Chemistry and Life Sciences 2019 - Congress Center Basel, Basel, Switzerland Duration: 27 Oct 2019 → 31 Oct 2019 Conference number: 23rd https://www.microtas2019.org/

Conference

Conference	Miniaturized Systems for Chemistry and Life Sciences 2019
Abbreviated title	µTAS 2019
Country	Switzerland
City	Basel
Period	27/10/19 → 31/10/19
Internet address	https://www.microtas2019.org/

Keywords

Printed circuit board
Graphene
Biosensor
Field-effect transistor
DNA
Ink-jet
Microfluidics

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title = "PCB-implemented graphene electrolyte-gated field-effect transistors for biosensing applications",

abstract = "In this work we integrate Electrolyte-Gated Field-Effect transistors (EGFET) in Lab-on-Printed Circuit Board (Lab-on-PCB) microsystems for the first time, aiming for the implementation of an ultra-high sensitivity biosensing platform that can still be cost-effectively mass-produced. Silver-nanoparticle ink was ink-jet printed on PCB-based gold electrodes and was chlorinated to fabricate stable pseudo-reference electrodes. Graphene ink was drop-casted to create the transistor channel. Preliminary results with single-stranded DNA (ssDNA) immobilized on the graphene surface revealed systematic shift in Vdirac with increasing complementary DNA concentration.",

keywords = "Printed circuit board, Graphene, Biosensor, Field-effect transistor, DNA, Ink-jet, Microfluidics",

author = "Sotirios Papamatthaiou and Pedro Estrela and Despina Moschou",

year = "2019",

month = jul,

day = "1",

language = "English",

note = "Miniaturized Systems for Chemistry and Life Sciences 2019, µTAS 2019 ; Conference date: 27-10-2019 Through 31-10-2019",

url = "https://www.microtas2019.org/",

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TY - CONF

T1 - PCB-implemented graphene electrolyte-gated field-effect transistors for biosensing applications

AU - Papamatthaiou, Sotirios

AU - Estrela, Pedro

AU - Moschou, Despina

N1 - Conference code: 23rd

PY - 2019/7/1

Y1 - 2019/7/1

N2 - In this work we integrate Electrolyte-Gated Field-Effect transistors (EGFET) in Lab-on-Printed Circuit Board (Lab-on-PCB) microsystems for the first time, aiming for the implementation of an ultra-high sensitivity biosensing platform that can still be cost-effectively mass-produced. Silver-nanoparticle ink was ink-jet printed on PCB-based gold electrodes and was chlorinated to fabricate stable pseudo-reference electrodes. Graphene ink was drop-casted to create the transistor channel. Preliminary results with single-stranded DNA (ssDNA) immobilized on the graphene surface revealed systematic shift in Vdirac with increasing complementary DNA concentration.

AB - In this work we integrate Electrolyte-Gated Field-Effect transistors (EGFET) in Lab-on-Printed Circuit Board (Lab-on-PCB) microsystems for the first time, aiming for the implementation of an ultra-high sensitivity biosensing platform that can still be cost-effectively mass-produced. Silver-nanoparticle ink was ink-jet printed on PCB-based gold electrodes and was chlorinated to fabricate stable pseudo-reference electrodes. Graphene ink was drop-casted to create the transistor channel. Preliminary results with single-stranded DNA (ssDNA) immobilized on the graphene surface revealed systematic shift in Vdirac with increasing complementary DNA concentration.

KW - Printed circuit board

KW - Graphene

KW - Biosensor

KW - Field-effect transistor

KW - DNA

KW - Ink-jet

KW - Microfluidics

M3 - Paper

T2 - Miniaturized Systems for Chemistry and Life Sciences 2019

Y2 - 27 October 2019 through 31 October 2019

ER -