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Field-effect transistor based biosensing of glucose using carbon nanotubes and monolayer MoS2
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and Condensed Matter Physics.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

As part of the EU SmartVista project to develop a multi-modal wearable sensor for health diagnostics, field-effect transistor (FET) based biosensors were explored, with glucose as the analyte, and carbon nanotubes (CNTs) or monolayer MoS2 as the semiconducting sensing layer.  Numerous arrays of CNT-FETs and MoS2-FETs were fabricated by photolithographic methods and packaged as integrated circuits.  Functionalization of the sensing layer using linkers and enzymes was performed, and the samples were characterized by atomic force microscopy, scanning electron microscopy, optical microscopy, and electrical measurements. ON/OFF ratios of 102 p-type and < 102 n-type were acheived, respectively, and the work helped survey the viability of realizing such sensors in a wearable device.

Place, publisher, year, edition, pages
2019. , p. 34
Series
FYSAST ; FYSPROJ1148
Keywords [en]
field-effect transistor, biosensor, glucose, carbon nanotube, MoS2, 1D materials, 2D materials, nanotechnology, FET
National Category
Condensed Matter Physics Nano Technology
Identifiers
URN: urn:nbn:se:uu:diva-397719OAI: oai:DiVA.org:uu-397719DiVA, id: diva2:1372483
Subject / course
Material
Educational program
Master Programme in Physics
Supervisors
Examiners
Projects
EU Horizon 2020 - SmartVista (825114)Available from: 2019-11-25 Created: 2019-11-24 Last updated: 2019-11-25Bibliographically approved

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Report for LIRMM summer internship 2019 - Nathan Ullberg(7630 kB)9 downloads
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Molecular and Condensed Matter Physics
Condensed Matter PhysicsNano Technology

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