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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c00274
|2 doi
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|a pubmed24n1024.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhang, Xinru
|e verfasserin
|4 aut
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|a Cell Surface Energy Affects the Structure of Microalgal Biofilm
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 21.06.2021
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|a Date Revised 21.06.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Microalgae biofilm-based culture systems have wide applications in environmental engineering and biotechnology. Biofilm structure is critical for the transport of nutrients, gas, and signaling molecules in a microalgal biofilm. This work aims to understand the influence of cell surface energy (SE) on the microalgal biofilm structure. Three microalgae species were used as model cells in the study: Chlorella sp., Nannochloris oculata, and Chlorella pyrenoidosa. First, by mediating biofilm culture conditions, we obtained Chlorella sp. cells with SEs of 40.4 ± 1.5, 44.7 ± 1.0, and 62. 7 ± 1.2 mJ/m2, N. oculata cells with SEs of 47.7 ± 0.5, 41.1 ± 1.0, and 62.6 ± 1.2 mJ/m2, and C. pyrenoidosa cells with SEs of 64.0 ± 0.6, 62.1 ± 0.7, and 62.8 ± 0.6 mJ/m2. Then, based on the characterizations of biofilm structures, we found that cell SE can significantly affect the microalgae biofilm structure. When the cell SEs ranged from 40 to 50 mJ/m2, the microalgae cells formed heterogeneous biofilms with a large number of open voids, and the biofilm porosity was higher than 20%. Alternatively, when the cell SEs ranged from 50 to 65 mJ/m2, the cells formed a flat, homogeneous biofilm with the porosity lower than 20%. Finally, the influencing mechanism of cell SE on biofilm structure was interpreted based on the thermodynamic theory via analyzing the co-adhesion energy between cells. The study has important implications in understanding factors that influence the biofilm structures
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Yuan, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guan, Libo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zeng, Ziyi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jiang, Zeyi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Xinxin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 36(2020), 12 vom: 31. März, Seite 3057-3063
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:36
|g year:2020
|g number:12
|g day:31
|g month:03
|g pages:3057-3063
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|u http://dx.doi.org/10.1021/acs.langmuir.0c00274
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