Difference between revisions of "Biofilms as complex fluids"

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==Introduction==
 
==Introduction==
 
Bacterial biofilms can be found on nearly every surface as long as there is moisture and nutrients. They can have a positive impact in areas such as water treatment and waste sequestration, but they also play a devastating role in many bacteria-related problems like tooth decay and hospital-acquired infections. A better understanding of the structure, mechanics, and dynamics of biofilms is necessary for both their removal and for the optimization of their properties.  
 
Bacterial biofilms can be found on nearly every surface as long as there is moisture and nutrients. They can have a positive impact in areas such as water treatment and waste sequestration, but they also play a devastating role in many bacteria-related problems like tooth decay and hospital-acquired infections. A better understanding of the structure, mechanics, and dynamics of biofilms is necessary for both their removal and for the optimization of their properties.  
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Viewing biofilms as a complex fluid is a good starting point for analyzing their structure and properties. A bioflim can be seen as a composite of colloids embedded in a cross-linked polymer gel.
  
 
==Biofilm Structure==
 
==Biofilm Structure==

Revision as of 01:00, 12 September 2011

Entry by Emily Redston, AP 225, Fall 2011

Work in progress

Reference

Biofilms as Complex Fluids by J. N. Wilking, T. E. Angelini, A. Seminara, M. P. Brenner, and D. A. Weitz. MRS Bulletin, 26, 385-391 (2011)

Introduction

Bacterial biofilms can be found on nearly every surface as long as there is moisture and nutrients. They can have a positive impact in areas such as water treatment and waste sequestration, but they also play a devastating role in many bacteria-related problems like tooth decay and hospital-acquired infections. A better understanding of the structure, mechanics, and dynamics of biofilms is necessary for both their removal and for the optimization of their properties.

Viewing biofilms as a complex fluid is a good starting point for analyzing their structure and properties. A bioflim can be seen as a composite of colloids embedded in a cross-linked polymer gel.

Biofilm Structure

Viscoelasticity

Spatial Gradients

Conclusion