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Regulated patterns of bacterial movements based on their secreted cellulose nanofibers interacting interfacially with ordered chitin templates

Paper ID Volume ID Publish Year Pages File Format Full-Text
20694 43186 2012 8 PDF Available
Title
Regulated patterns of bacterial movements based on their secreted cellulose nanofibers interacting interfacially with ordered chitin templates
Abstract

Gluconacetobacter xylinus, a gram-negative bacterium that synthesizes and extrudes a cellulose nanofiber in SH media moves in random manners, resulting in 3D-network structure of the secreted nanofibers termed a pellicle. In this study, the bacterial movement was successfully regulated to be in a waving manner when cultured on ordered templates made of chitin. Interestingly, by addition of more cellulose into the chitin ordered templates, the waving pattern was getting close to a linear or straight manner. Real time video analysis and other visualization techniques clarified that the regulation of the moving manners was due to the interfacial interaction between the secreted nanofibers and the template surfaces. Furthermore, the changing of the pattern due to the cellulose content in the ordered templates appeared to depend on the magnitude of the interaction between the template and nanofibers. This regulated autonomous deposition of the fibers will build patterned 3D-structure with unique properties on the surface of the templates, leading to a novel type of nanotechnology using biological systems with biomolecular nano-templates to design 3D-structures.

Keywords
Gluconacetobacter xylinus; Directed nano-patterning; Chitin; Cellulose; Nematic ordered cellulose; Nano-engine; Autonomous fabrication; Ordered template
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Regulated patterns of bacterial movements based on their secreted cellulose nanofibers interacting interfacially with ordered chitin templates
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 114, Issue 1, July 2012, Pages 113–120
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us