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Ultrasonic imaging of biofilms utilizing echoes from the biofilm/air interface
journal contribution
posted on 2023-05-16, 20:38 authored by Holmes, AK, Laybourn-Parry, J, Parry, JD, Unwin, ME, Challis, REUltrasonic imaging of biofilms in water is difficult due to the very low contrast in acoustic impedance between the biofilm and water. In this paper, biofilms exposed to moist air are scanned through the substrate in order to obtain echoes from the biofilm/air interface. A 50 MHz scanning system was used to scan 1 mm x 1 mm areas of biofilms in a 10 um grid pattern. Two fast Fourier transform (FFT) based methods for enhancement of the film thickness measurement resolution are compared. Using these techniques, the surface topography of biofilms with thickness less than the acoustic wavelength can be imaged.
History
Publication title
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency ControlVolume
53Pagination
185-192ISSN
0885-3010Publisher
IEEEPlace of publication
United StatesRights statement
Copyright © 2006 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Repository Status
- Restricted