| Improvement of biodesulfurization rate by assembling nanosorbents on the surfaces of microbial cells. | |
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MedLine Citation:
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PMID: 16258046 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To improve biodesulfurization rate is a key to industrialize biodesulfurization technology. The biodesulfurization rate is partially affected by transfer rate of substrates from organic phase to microbial cell. In this study, gamma-Al2O3 nanosorbents, which had the ability to selectively adsorb dibenzothiophene (DBT) from organic phase, were assembled on the surfaces of Pseudomonas delafieldii R-8 cell, a desulfurization strain. gamma-Al2O3 nanosorbents have the ability to adsorb DBT from oil phase, and the rate of adsorption was far higher than that of biodesulfurization. Thus, DBT can be quickly transferred to the biocatalyst surface where nanosorbents were located, which quickened DBT transfer from organic phase to biocatalyst surface and resulted in the increase of biodesulfurization rate. The desulfurization rate of the cells assembled with nanosorbents was approximately twofold higher than that of original cells. The cells assembled with nanosorbents were observed by a transmission electron microscope. |
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Authors:
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S Guobin; Z Huaiying; C Weiquan; X Jianmin; L Huizhou |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2005-10-28 |
Journal Detail:
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Title: Biophysical journal Volume: 89 ISSN: 0006-3495 ISO Abbreviation: Biophys. J. Publication Date: 2005 Dec |
Date Detail:
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Created Date: 2005-12-01 Completed Date: 2006-03-17 Revised Date: 2010-09-21 |
Medline Journal Info:
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Nlm Unique ID: 0370626 Medline TA: Biophys J Country: United States |
Other Details:
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Languages: eng Pagination: L58-60 Citation Subset: IM |
Affiliation:
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Laboratory of Separation Science and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100080, China. gbshan2003@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Absorption Aluminum Oxide / chemistry Biodegradation, Environmental Bioreactors / microbiology Cell Culture Techniques / methods* Cell Membrane / chemistry*, metabolism Crystallization / methods Nanostructures / chemistry*, ultrastructure Particle Size Petroleum / microbiology* Pseudomonas / metabolism* Sulfur / chemistry*, isolation & purification, metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Petroleum; 1344-28-1/Aluminum Oxide; 7704-34-9/Sulfur |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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