Nonlinear viscoelasticity of filamentous fungal biofilms of

Journal article


Aiswarya, N. M., Tabraiz, Shamas, Taneja, H., Ahmed (Patel), A. and Aravinda Narayanan, R. 2024. Nonlinear viscoelasticity of filamentous fungal biofilms of . Biofilm. 8, p. 100227. https://doi.org/10.1016/j.bioflm.2024.100227
AuthorsAiswarya, N. M., Tabraiz, Shamas, Taneja, H., Ahmed (Patel), A. and Aravinda Narayanan, R.
AbstractThe picture of bacterial biofilms as a colloidal gel composed of rigid bacterial cells protected by extracellular crosslinked polymer matrix has been pivotal in understanding their ability to adapt their microstructure and viscoelasticity to environmental assaults. This work explores if an analogous perspective exists in fungal biofilms with long filamentous cells. To this end, we consider biofilms of the fungus formed on the air-liquid interface, which has shown an ability to remove excess nitrogen and phosphorous from wastewater effectively. We investigated the changes to the viscoelasticity and the microstructure of these biofilms when the biofilms uptake varying concentrations of nitrogen and phosphorous, using large amplitude oscillatory shear flow rheology (LAOS) and field-emission scanning electron microscopy (FESEM), respectively. A distinctive peak in the loss modulus (G″) at 30-50 % shear strain is observed, indicating the transition from an elastic to plastic deformation state. Though a peak in G″ has been observed in several soft materials, including bacterial biofilms, it has eluded interpretation in terms of quantifiable microstructural features. The central finding of this work is that the intensity of the G″ peak, signifying resistance to large deformations, correlates directly with the protein and polysaccharide concentrations per unit biomass in the extracellular matrix and inversely with the shear-induced changes in filament orientation in the hyphal network. These correlations have implications for the rational design of fungal biofilms with tuneable mechanical properties. [Abstract copyright: © 2024 The Authors.]
KeywordsFilament orientation; LAOS; Viscoelasticity; Fungal biofilm; Strain overshoot; Mechanics
Year2024
JournalBiofilm
Journal citation8, p. 100227
PublisherElsevier
ISSN2590-2075
Digital Object Identifier (DOI)https://doi.org/10.1016/j.bioflm.2024.100227
https://doi.org/S2590-2075(24)00052-2
Official URLhttps://www.sciencedirect.com/science/article/pii/S2590207524000522
Publication dates
Online05 Oct 2024
Publication process dates
Accepted01 Oct 2024
Deposited06 Nov 2024
Publisher's version
License
File Access Level
Open
Output statusPublished
Additional information

Publications router.

Permalink -

https://repository.canterbury.ac.uk/item/998qy/nonlinear-viscoelasticity-of-filamentous-fungal-biofilms-of

Download files


Publisher's version
1-s2.0-S2590207524000522-main.pdf
License: CC BY-NC-ND 4.0
File access level: Open

  • 1
    total views
  • 1
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

Optimization of coagulation to remove turbidity from surface water using novel nature-based plant coagulant and response surface methodology
Shahzadi, Fakhara, Haydar, Sajjad and Tabraiz, Shamas 2024. Optimization of coagulation to remove turbidity from surface water using novel nature-based plant coagulant and response surface methodology. Sustainability. 16 (7), p. 2941. https://doi.org/10.3390/su16072941
The development and optimisation of a lab-scale process for biological treatment of lignin-rich wastewater using biofilms formed by Nuerospora Discreta
Taneja, H. 2023. The development and optimisation of a lab-scale process for biological treatment of lignin-rich wastewater using biofilms formed by Nuerospora Discreta . PhD Thesis Canterbury Christ Church University School of Psychology and Life Sciences
Seasonal variations in dissolved organic matter concentration and composition in an outdoor system for bank filtration simulation.
Zeeshan, Muhammad, Ali, Omamah, Tabraiz, Shamas and Ruhl, Aki Sebastian 2023. Seasonal variations in dissolved organic matter concentration and composition in an outdoor system for bank filtration simulation. Journal of Environmental Sciences. 135, pp. 252-261. https://doi.org/10.1016/j.jes.2023.01.006
Ecotoxicological impacts associated with the interplay between micro(nano)plastics and pesticides in aquatic and terrestrial environments
Junaid, Muhammad, Abbas, Zohaib, Siddiqui, Junaid Ali, Liu, Shulin, Tabraiz, Shamas, Yue, Qiang and Wang, J. 2023. Ecotoxicological impacts associated with the interplay between micro(nano)plastics and pesticides in aquatic and terrestrial environments. TrAC Trends in Analytical Chemistry. 165, p. 117133. https://doi.org/10.1016/j.trac.2023.117133
Rapid proteomic characterization of bacteriocin-producing Enterococcus faecium strains from foodstuffs
Quintela-Baluja, M., Jobling, Kelly, Graham, D., Tabraiz, S., Calo-Mata, P., Alnakip, M., Böhme, Karola, Shamurad, B., Barros-Velázquez, J. and Carrera, M. 2022. Rapid proteomic characterization of bacteriocin-producing Enterococcus faecium strains from foodstuffs. International Journal of Molecular Sciences. 23 (22), p. 13830. https://doi.org/10.3390/ijms232213830
Biofilm-based simultaneous nitrification, denitrification, and phosphorous uptake in wastewater by Neurospora discreta
Ahmed, A., Tabraiz, S., N.M.Aiswarya, Taneja, H. and R. Aravinda Narayanan 2022. Biofilm-based simultaneous nitrification, denitrification, and phosphorous uptake in wastewater by Neurospora discreta . Journal of Environmental Management. 324, p. 116363. https://doi.org/10.1016/j.jenvman.2022.116363
Investigation of the effect of equal and unequal feeding time intervals on process stability and methane yield during anaerobic digestion grass silage
Egwu, U., Onyelowe, Kennedy, Tabraiz, S., Johnson, Emmanuel and Mutshow, A. 2022. Investigation of the effect of equal and unequal feeding time intervals on process stability and methane yield during anaerobic digestion grass silage. Renewable and Sustainable Energy Reviews. 158, p. 112092. https://doi.org/10.1016/j.rser.2022.112092
Temperature and immigration effects on quorum sensing in the biofilms of anaerobic membrane bioreactors
Tabraiz, Shamas, Petropoulos, Evangelos, Shamurad, Burhan, Quintela-Baluja, Marcos, Mohapatra, Sanjeeb, Acharya, Kishor, Charlton, Alex, Davenport, Russell J, Dolfing, Jan and Sallis, Paul J 2021. Temperature and immigration effects on quorum sensing in the biofilms of anaerobic membrane bioreactors. Journal of Environmental Management. 293, p. 112947. https://doi.org/10.1016/j.jenvman.2021.112947