Optical method for long‐term and large‐scale monitoring of spatial biofilm development
Identifieur interne : 001500 ( Main/Merge ); précédent : 001499; suivant : 001501Optical method for long‐term and large‐scale monitoring of spatial biofilm development
Auteurs : K. Milferstedt [États-Unis] ; M. Pons [France] ; E. Morgenroth [États-Unis]Source :
- Biotechnology and Bioengineering [ 0006-3592 ] ; 2006-07-05.
Descripteurs français
- Wicri :
- topic : Biomasse, Biotechnologie, Glucose, Scanner.
English descriptors
- KwdEn :
- Annular reactor, Auxiliary parts, Average biomass, Average thickness, Background image, Background images, Background subtraction, Bakke, Batch inoculation, Bioengineering, Biomass, Biomass accumulation, Biomass concentration, Biomass development, Biomass distributions, Biotechnology, Community shift, Community shifts, Deionized water, Desktop scanner, Detachment, Detachment event, Development biotechnology, Different growth dynamics, Dilution water, Early stages, Error bars, Exponential function, Fungal hyphae, Generation data, Generation development, Generation slides, Glucose, Glucose concentration, Grey level, Grey level analysis, Grey level data, Grey level measurement, Grey levels, Growth dynamics, Heterogeneity, Horizontal direction, Image acquisition, Image analysis, Individual slides, Initial formation, Laser triangulation sensor, Light absorption characteristics, Light intensity, Light microscopy, Linear regression, Linear regressions, Local biomass concentrations, Local thickness, Lower range, Magnetic resonance imaging, Microbiol, Microscopic images, National science foundation, Nutrient solution, Optic probe, Optical density, Optical method, Outer cylinder, Outer wall, Overall biomass, Pixel, Reactor, Reactor system, Regression, Regression analysis, Roughness, Scanner, Scanner artifacts, Scanner method, Scanner window, Scanning, Scanning method, Second generation, Second generation data, Second generation development, Second generation slides, Slide, Source images, Spatial resolution, Square centimeter scale, Standard errors, Stoodley, Surface roughness, Thickness variability, Time axis, Time lapse microscopy, Total solids, Total solids measurements, Transects, Vertical direction, Vertical directions, Vertical transects, Wide range, Wiley periodicals.
- Teeft :
- Annular reactor, Auxiliary parts, Average biomass, Average thickness, Background image, Background images, Background subtraction, Bakke, Batch inoculation, Bioengineering, Biomass, Biomass accumulation, Biomass concentration, Biomass development, Biomass distributions, Biotechnology, Community shift, Community shifts, Deionized water, Desktop scanner, Detachment, Detachment event, Development biotechnology, Different growth dynamics, Dilution water, Early stages, Error bars, Exponential function, Fungal hyphae, Generation data, Generation development, Generation slides, Glucose, Glucose concentration, Grey level, Grey level analysis, Grey level data, Grey level measurement, Grey levels, Growth dynamics, Heterogeneity, Horizontal direction, Image acquisition, Image analysis, Individual slides, Initial formation, Laser triangulation sensor, Light absorption characteristics, Light intensity, Light microscopy, Linear regression, Linear regressions, Local biomass concentrations, Local thickness, Lower range, Magnetic resonance imaging, Microbiol, Microscopic images, National science foundation, Nutrient solution, Optic probe, Optical density, Optical method, Outer cylinder, Outer wall, Overall biomass, Pixel, Reactor, Reactor system, Regression, Regression analysis, Roughness, Scanner, Scanner artifacts, Scanner method, Scanner window, Scanning, Scanning method, Second generation, Second generation data, Second generation development, Second generation slides, Slide, Source images, Spatial resolution, Square centimeter scale, Standard errors, Stoodley, Surface roughness, Thickness variability, Time axis, Time lapse microscopy, Total solids, Total solids measurements, Transects, Vertical direction, Vertical directions, Vertical transects, Wide range, Wiley periodicals.
Abstract
A method was developed that allows biofilm monitoring on the square centimeter scale over extended periods of time. The method is based on image acquisition using a desktop scanner and subsequent image analysis. It was shown that results from grey level analysis are highly correlated with physical properties of the biofilm like average biomass and biofilm thickness. The scanner method was applied to monitor overall biofilm growth, detachment, and surface roughness during two 3 and 4 week long experiments. Two significantly different growth dynamics during the biofilm development could be identified, depending on the biofilm history. Surface roughness on transects in flow direction was always higher than on transects perpendicular to the flow, reflecting the anisotropic characteristics of biofilms growing in a flow field. © 2006 Wiley Periodicals, Inc.
Url:
DOI: 10.1002/bit.20893
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ISTEX:E3B4D9891D1F48332E1D9CB0C9BACB49BD37418ALe document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Annular reactor</term>
<term>Auxiliary parts</term>
<term>Average biomass</term>
<term>Average thickness</term>
<term>Background image</term>
<term>Background images</term>
<term>Background subtraction</term>
<term>Bakke</term>
<term>Batch inoculation</term>
<term>Bioengineering</term>
<term>Biomass</term>
<term>Biomass accumulation</term>
<term>Biomass concentration</term>
<term>Biomass development</term>
<term>Biomass distributions</term>
<term>Biotechnology</term>
<term>Community shift</term>
<term>Community shifts</term>
<term>Deionized water</term>
<term>Desktop scanner</term>
<term>Detachment</term>
<term>Detachment event</term>
<term>Development biotechnology</term>
<term>Different growth dynamics</term>
<term>Dilution water</term>
<term>Early stages</term>
<term>Error bars</term>
<term>Exponential function</term>
<term>Fungal hyphae</term>
<term>Generation data</term>
<term>Generation development</term>
<term>Generation slides</term>
<term>Glucose</term>
<term>Glucose concentration</term>
<term>Grey level</term>
<term>Grey level analysis</term>
<term>Grey level data</term>
<term>Grey level measurement</term>
<term>Grey levels</term>
<term>Growth dynamics</term>
<term>Heterogeneity</term>
<term>Horizontal direction</term>
<term>Image acquisition</term>
<term>Image analysis</term>
<term>Individual slides</term>
<term>Initial formation</term>
<term>Laser triangulation sensor</term>
<term>Light absorption characteristics</term>
<term>Light intensity</term>
<term>Light microscopy</term>
<term>Linear regression</term>
<term>Linear regressions</term>
<term>Local biomass concentrations</term>
<term>Local thickness</term>
<term>Lower range</term>
<term>Magnetic resonance imaging</term>
<term>Microbiol</term>
<term>Microscopic images</term>
<term>National science foundation</term>
<term>Nutrient solution</term>
<term>Optic probe</term>
<term>Optical density</term>
<term>Optical method</term>
<term>Outer cylinder</term>
<term>Outer wall</term>
<term>Overall biomass</term>
<term>Pixel</term>
<term>Reactor</term>
<term>Reactor system</term>
<term>Regression</term>
<term>Regression analysis</term>
<term>Roughness</term>
<term>Scanner</term>
<term>Scanner artifacts</term>
<term>Scanner method</term>
<term>Scanner window</term>
<term>Scanning</term>
<term>Scanning method</term>
<term>Second generation</term>
<term>Second generation data</term>
<term>Second generation development</term>
<term>Second generation slides</term>
<term>Slide</term>
<term>Source images</term>
<term>Spatial resolution</term>
<term>Square centimeter scale</term>
<term>Standard errors</term>
<term>Stoodley</term>
<term>Surface roughness</term>
<term>Thickness variability</term>
<term>Time axis</term>
<term>Time lapse microscopy</term>
<term>Total solids</term>
<term>Total solids measurements</term>
<term>Transects</term>
<term>Vertical direction</term>
<term>Vertical directions</term>
<term>Vertical transects</term>
<term>Wide range</term>
<term>Wiley periodicals</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Annular reactor</term>
<term>Auxiliary parts</term>
<term>Average biomass</term>
<term>Average thickness</term>
<term>Background image</term>
<term>Background images</term>
<term>Background subtraction</term>
<term>Bakke</term>
<term>Batch inoculation</term>
<term>Bioengineering</term>
<term>Biomass</term>
<term>Biomass accumulation</term>
<term>Biomass concentration</term>
<term>Biomass development</term>
<term>Biomass distributions</term>
<term>Biotechnology</term>
<term>Community shift</term>
<term>Community shifts</term>
<term>Deionized water</term>
<term>Desktop scanner</term>
<term>Detachment</term>
<term>Detachment event</term>
<term>Development biotechnology</term>
<term>Different growth dynamics</term>
<term>Dilution water</term>
<term>Early stages</term>
<term>Error bars</term>
<term>Exponential function</term>
<term>Fungal hyphae</term>
<term>Generation data</term>
<term>Generation development</term>
<term>Generation slides</term>
<term>Glucose</term>
<term>Glucose concentration</term>
<term>Grey level</term>
<term>Grey level analysis</term>
<term>Grey level data</term>
<term>Grey level measurement</term>
<term>Grey levels</term>
<term>Growth dynamics</term>
<term>Heterogeneity</term>
<term>Horizontal direction</term>
<term>Image acquisition</term>
<term>Image analysis</term>
<term>Individual slides</term>
<term>Initial formation</term>
<term>Laser triangulation sensor</term>
<term>Light absorption characteristics</term>
<term>Light intensity</term>
<term>Light microscopy</term>
<term>Linear regression</term>
<term>Linear regressions</term>
<term>Local biomass concentrations</term>
<term>Local thickness</term>
<term>Lower range</term>
<term>Magnetic resonance imaging</term>
<term>Microbiol</term>
<term>Microscopic images</term>
<term>National science foundation</term>
<term>Nutrient solution</term>
<term>Optic probe</term>
<term>Optical density</term>
<term>Optical method</term>
<term>Outer cylinder</term>
<term>Outer wall</term>
<term>Overall biomass</term>
<term>Pixel</term>
<term>Reactor</term>
<term>Reactor system</term>
<term>Regression</term>
<term>Regression analysis</term>
<term>Roughness</term>
<term>Scanner</term>
<term>Scanner artifacts</term>
<term>Scanner method</term>
<term>Scanner window</term>
<term>Scanning</term>
<term>Scanning method</term>
<term>Second generation</term>
<term>Second generation data</term>
<term>Second generation development</term>
<term>Second generation slides</term>
<term>Slide</term>
<term>Source images</term>
<term>Spatial resolution</term>
<term>Square centimeter scale</term>
<term>Standard errors</term>
<term>Stoodley</term>
<term>Surface roughness</term>
<term>Thickness variability</term>
<term>Time axis</term>
<term>Time lapse microscopy</term>
<term>Total solids</term>
<term>Total solids measurements</term>
<term>Transects</term>
<term>Vertical direction</term>
<term>Vertical directions</term>
<term>Vertical transects</term>
<term>Wide range</term>
<term>Wiley periodicals</term>
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<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biomasse</term>
<term>Biotechnologie</term>
<term>Glucose</term>
<term>Scanner</term>
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<front><div type="abstract" xml:lang="en">A method was developed that allows biofilm monitoring on the square centimeter scale over extended periods of time. The method is based on image acquisition using a desktop scanner and subsequent image analysis. It was shown that results from grey level analysis are highly correlated with physical properties of the biofilm like average biomass and biofilm thickness. The scanner method was applied to monitor overall biofilm growth, detachment, and surface roughness during two 3 and 4 week long experiments. Two significantly different growth dynamics during the biofilm development could be identified, depending on the biofilm history. Surface roughness on transects in flow direction was always higher than on transects perpendicular to the flow, reflecting the anisotropic characteristics of biofilms growing in a flow field. © 2006 Wiley Periodicals, Inc.</div>
</front>
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