| dc.creator | Whitehead,Neil Evan | |
| dc.creator | Tani,Atushi | |
| dc.creator | Kazue,Tazaki | |
| dc.creator | Motoji,Ikeya | |
| dc.date | 2004-12-01 | |
| dc.date.accessioned | 2020-02-17T15:35:40Z | |
| dc.date.available | 2020-02-17T15:35:40Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582004000300011 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/132018 | |
| dc.description | This preliminary work shows ESR (Electron Spin Resonance) can be used to detect biofilms, particularly from Fe-metabolising bacteria. A film was detected by ESR as early as 1 day, hence possibly more sensitively than by fluorescent methods. Films can probably be detected as early as one hour. Spectra contain a very broad peak at g=2.13, probably due to ferrihydrite. Results of field experiments from streams and ponds in New Zealand and Japan, particularly the Minoh River, showed a general increase of ferrihydrite with time. Loss by exfoliation was later than 20 days. The rate of accumulation was faster in a nutrient-rich stagnant pond. Hematite (g=4.3) was often observed, magnetite (g=9) once, and usually small amounts of a common bacterial decay product. The latter was detected for at least 18 months film storage. ESR is a particularly good tool for observing the growth of oxic biofilms containing Fe-metabolising bacteria, and should be just as sensitive for observing Mn-metabolising bacteria in reducing conditions. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Pontificia Universidad Católica de Valparaíso | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Electronic Journal of Biotechnology v.7 n.3 2004 | |
| dc.title | Preliminary results of using ESR to examine biofilms | |
