Fibre Optic Readout of Microcantilever Arrays for Fast Microorganism Growth Detection
Citation:
Maloney, N., Lukacs, G., Nugaeva, N., Grange, W., Ramseyer, J. P., Jensen, J., Hegner, M., Fibre Optic Readout of Microcantilever Arrays for Fast Microorganism Growth Detection, Journal of Sensors, 2012, 2012, Art. no 405281Download Item:
Abstract:
We present a fibre-optic-based device for the automated readout of microcantilever arrays for fast microorganism growth detection. We determined the ability of our device to track shifts in resonance frequency due to an increase in mass on the cantilever surface or changes in mechanical stiffness. The resonance frequency response of 7m thick agarose-functionalised cantilevers was tracked as humidity levels were varied revealing a mass responsivity of ~ 51 1 pg/Hz. The resonance response of microcantilevers coated with Aspergillus niger (A. niger) spores was monitored for >48h revealing a growth detection time of >4h. The growth of mycelium along the cantilevers surface is seen to result in an increase in resonance frequency due to the reinforcement of the cantilever structure. The use of our fibre optic detection technique allows data to be recorded continuously and faster than previously reported.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
SFI08/CE/I1432
Science Foundation Ireland (SFI)
SFI/09IN/1B2623
Author's Homepage:
http://people.tcd.ie/hegnermDescription:
PUBLISHEDRapid microfungus growth analyis using nanomechanical sensors
Author: HEGNER, MARTIN
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Journal ArticleCollections
Series/Report no:
Journal of Sensors2012
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Nanoscience & MaterialsDOI:
http://dx.doi.org/10.1155/2012/405281Metadata
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