Film bulk acoustic resonators for DNA and protein detection and investigation of in vitro bacterial S-layer formation

Martin Nirschl; Anja Blüher; Christiane Erler; Beate Katzschner; Inger Vikholm-Lundin; Sanna Auer; Janos Vörös; Wolfgang Pompe; Matthias Schreiter; Michael Mertig

doi:10.1016/j.sna.2009.02.021

Film bulk acoustic resonators for DNA and protein detection and investigation of in vitro bacterial S-layer formation

Martin Nirschl, Anja Blüher, Christiane Erler, Beate Katzschner, Inger Vikholm-Lundin, Sanna Auer, Janos Vörös, Wolfgang Pompe, Matthias Schreiter, Michael Mertig (Corresponding Author)

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

74 Citations (Scopus)

Abstract

We report investigations on the use of film bulk acoustic resonators for the label-free, multiplexed biosensing of DNA and proteins. The used acoustic resonators were operated in shear mode at about 800 MHz. From the measured changes of frequency and in dissipation, the mass and the viscoelasticity of biomolecular films formed at the top electrode of the device could be derived, respectively. A mass sensitivity of ∼2 kHz cm²/ng and a minimum detectable mass of ∼1 ng/cm² were achieved. To demonstrate the highly sensitive detection of the time evolution of protein adsorption, the adsorption kinetics and recrystallisation of bacterial surface layer proteins on gold surfaces were investigated.

Original language	English
Pages (from-to)	180-184
Journal	Sensors and Actuators A: Physical
Volume	156
Issue number	1
DOIs	https://doi.org/10.1016/j.sna.2009.02.021
Publication status	Published - 2009
MoE publication type	A1 Journal article-refereed

Keywords

Film bulk acoustic resonator
Shear mode operation
Biosensors
DNA hybridisation
Bacterial surface layer proteins

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10.1016/j.sna.2009.02.021

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abstract = "We report investigations on the use of film bulk acoustic resonators for the label-free, multiplexed biosensing of DNA and proteins. The used acoustic resonators were operated in shear mode at about 800 MHz. From the measured changes of frequency and in dissipation, the mass and the viscoelasticity of biomolecular films formed at the top electrode of the device could be derived, respectively. A mass sensitivity of ∼2 kHz cm2/ng and a minimum detectable mass of ∼1 ng/cm2 were achieved. To demonstrate the highly sensitive detection of the time evolution of protein adsorption, the adsorption kinetics and recrystallisation of bacterial surface layer proteins on gold surfaces were investigated.",

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T1 - Film bulk acoustic resonators for DNA and protein detection and investigation of in vitro bacterial S-layer formation

AU - Nirschl, Martin

AU - Blüher, Anja

AU - Erler, Christiane

AU - Katzschner, Beate

AU - Vikholm-Lundin, Inger

AU - Auer, Sanna

AU - Vörös, Janos

AU - Pompe, Wolfgang

AU - Schreiter, Matthias

AU - Mertig, Michael

PY - 2009

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N2 - We report investigations on the use of film bulk acoustic resonators for the label-free, multiplexed biosensing of DNA and proteins. The used acoustic resonators were operated in shear mode at about 800 MHz. From the measured changes of frequency and in dissipation, the mass and the viscoelasticity of biomolecular films formed at the top electrode of the device could be derived, respectively. A mass sensitivity of ∼2 kHz cm2/ng and a minimum detectable mass of ∼1 ng/cm2 were achieved. To demonstrate the highly sensitive detection of the time evolution of protein adsorption, the adsorption kinetics and recrystallisation of bacterial surface layer proteins on gold surfaces were investigated.

AB - We report investigations on the use of film bulk acoustic resonators for the label-free, multiplexed biosensing of DNA and proteins. The used acoustic resonators were operated in shear mode at about 800 MHz. From the measured changes of frequency and in dissipation, the mass and the viscoelasticity of biomolecular films formed at the top electrode of the device could be derived, respectively. A mass sensitivity of ∼2 kHz cm2/ng and a minimum detectable mass of ∼1 ng/cm2 were achieved. To demonstrate the highly sensitive detection of the time evolution of protein adsorption, the adsorption kinetics and recrystallisation of bacterial surface layer proteins on gold surfaces were investigated.

KW - Film bulk acoustic resonator

KW - Shear mode operation

KW - Biosensors

KW - DNA hybridisation

KW - Bacterial surface layer proteins

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DO - 10.1016/j.sna.2009.02.021

M3 - Article

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VL - 156

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JO - Sensors and Actuators A: Physical

JF - Sensors and Actuators A: Physical

IS - 1

ER -

Film bulk acoustic resonators for DNA and protein detection and investigation of in vitro bacterial S-layer formation

Abstract

Keywords

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