Relationship between surface chemistry, biofilm structure, and electron transfer in Shewanella anodes

Biointerphases
Kateryna ArtyushkovaAndrew J Schuler

Abstract

A better understanding of how anode surface properties affect growth, development, and activity of electrogenic biofilms has great potential to improve the performance of bioelectrochemical systems such as microbial fuel cells. The aim of this paper was to determine how anodes with specific exposed functional groups (-N(CH3)3 (+), -COOH, -OH, and -CH3), created using ω-substituted alkanethiolates self-assembled monolayers attached to gold, affect the surface properties and functional performance of electrogenic Shewanella oneidensis MR-1 biofilms. A combination of spectroscopic, microscopic, and electrochemical techniques was used to evaluate how electrode surface chemistry influences morphological, chemical, and functional properties of S. oneidensis MR-1 biofilms, in an effort to develop improved electrode materials and structures. Positively charged, highly functionalized, hydrophilic surfaces were beneficial for growth of uniform biofilms with the smallest cluster sizes and intercluster diffusion distances, and yielding the most efficient electron transfer. The authors derived these parameters based on 3D morphological features of biofilms that were directly linked to functional properties of the biofilm during growth and t...Continue Reading

References

May 15, 1995·FEMS Microbiology Letters·H J BusscherH C van der Mei
Nov 27, 1999·Journal of Microbiological Methods·X YangZ Lewandowski
Aug 10, 2000·FEMS Microbiology Letters·R BosH J Busscher
Oct 6, 2000·Annual Review of Microbiology·G O'TooleR Kolter
Mar 26, 2004·Nature Reviews. Microbiology·Luanne Hall-StoodleyPaul Stoodley
Apr 15, 2004·Biofouling·Haluk BeyenalGary Harkin
Jul 9, 2004·Applied and Environmental Microbiology·Linnea K IstaGabriel P Lopez
Oct 19, 2004·Journal of Microbiological Methods·Haluk BeyenalGary Harkin
Aug 23, 2005·Journal of Colloid and Interface Science·Santina CarnazzaGiovanni Marletta
Mar 5, 2008·Proceedings of the National Academy of Sciences of the United States of America·Enrico MarsiliDaniel R Bond
Mar 31, 2009·Nature Reviews. Microbiology·Bruce E Logan
Aug 23, 2011·Bioresource Technology·Jincheng WeiXia Huang
Mar 12, 2013·Bioelectrochemistry·P CristianiB Li
Apr 12, 2013·Proceedings of the National Academy of Sciences of the United States of America·Akihiro OkamotoRyuhei Nakamura
May 25, 2013·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Kateryna Artyushkova, Plamen Atanassov
Aug 22, 2014·Proceedings of the National Academy of Sciences of the United States of America·Sahand PirbadianMohamed Y El-Naggar
May 31, 2015·Bioelectrochemistry·Carlo SantoroAndrew J Schuler
May 1, 2001·Langmuir : the ACS Journal of Surfaces and Colloids·R Erik HolmlinGeorge M Whitesides

❮ Previous
Next ❯

Citations

May 31, 2015·Bioelectrochemistry·Carlo SantoroAndrew J Schuler
Sep 10, 2016·Biointerphases·Kateryna ArtyushkovaEnrico Marsili
Jun 15, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Zhou XuMaria M Santore

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofilm & Infectious Disease

Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections.Here is the latest research on biofilm and infectious diseases.

Biofilms

Biofilms are adherent bacterial communities embedded in a polymer matrix and can cause persistent human infections that are highly resistant to antibiotics. Discover the latest research on Biofilms here.