ArticleJournal of visualized experiments : JoVE2017
In Situ Characterization of Shewanella oneidensis MR1 Biofilms by SALVI and ToF-SIMS.
Article in Journal of visualized experiments : JoVE, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- ToF-SIMS spectral data analysis ofData in brief · 2025Article
- Molecular imaging uncovers growth media influence on biofilms' EPS production.Frontiers in chemistry · 2025Article
- Metabolic insights from mass spectrometry imaging of biofilms: A perspective from model microorganisms.Methods (San Diego, Calif.) · 2024Review
- Reducing the matrix effect in mass spectral imaging of biofilms using flow-cell culture.Frontiers in chemistry · 2023Article
- Quantitative SIMS Imaging of Agar-Based Microbial Communities.Analytical chemistry · 2018Article
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Authors and funding
7 authors.
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Abstract
Bacterial biofilms are surface-associated communities that are vastly studied to understand their self-produced extracellular polymeric substances (EPS) and their roles in environmental microbiology. This study outlines a method to cultivate biofilm attachment to the System for Analysis at the Liquid Vacuum Interface (SALVI) and achieve in situ chemical mapping of a living biofilm by time-of-flight secondary ion mass spectrometry (ToF-SIMS). This is done through the culturing of bacteria both outside and within the SALVI channel with our specialized setup, as well as through optical imaging techniques to detect the biofilm presence and thickness before ToF-SIMS analysis. Our results show the characteristic peaks of the Shewanella biofilm in its natural hydrated state, highlighting upon its localized water cluster environment, as well as EPS fragments, which are drastically different from the same biofilm's dehydrated state. These results demonstrate the breakthrough capability of SALVI that allows for in situ biofilm imaging with a vacuum-based chemical imaging instrument.
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