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Detecting Gold Biomineralization by Delftia acidovorans Biofilms on a Quartz Crystal Microbalance
https://oist.repo.nii.ac.jp/records/1225
https://oist.repo.nii.ac.jp/records/1225c3dc2dca-f4f3-403a-b992-49a9cd4bc556
名前 / ファイル | ライセンス | アクション |
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Funari-2019-Detecting Gold Biomineralization b (9.5 MB)
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ACS AuthorChoice
(https://pubs.acs.org/page/policy/authorchoice_termsofuse.html) |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-03-05 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Detecting Gold Biomineralization by Delftia acidovorans Biofilms on a Quartz Crystal Microbalance | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Funari, Riccardo
× Funari, Riccardo× Ripa, Rosa× Söderström, Bill× Skoglund, Ulf× Shen, Amy Q. |
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書誌情報 |
en : ACS Sensors 巻 4, 号 11, p. 3023-3033, 発行日 2019-10-21 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | The extensive use of gold in sensing, diagnostics, and electronics has led to major concerns in solid waste management since gold and other heavy metals are nonbiodegradable and can easily accumulate in the environment. Moreover, gold ions are extremely reactive and potentially harmful for humans. Thus, there is an urgent need to develop reliable methodologies to detect and possibly neutralize ionic gold in aqueous solutions and industrial wastes. In this work, by using complementary measurement techniques such as quartz crystal microbalance (QCM), atomic force microscopy, crystal violet staining, and optical microscopy, we investigate a promising biologically induced gold biomineralization process accomplished by biofilms of bacterium Delftia acidovorans. When stressed by Au(3+) ions, D. acidovorans is able to neutralize toxic soluble gold by excreting a nonribosomal peptide, which forms extracellular gold nanonuggets via complexation with metal ions. Specifically, QCM, a surface-sensitive transducer, is employed to quantify the production of these gold complexes directly on the D. acidovorans biofilm in real time. Detailed kinetics obtained by QCM captures the condition for maximized biomineralization yield and offers new insights underlying the biomineralization process. To the best of our knowledge, this is the first study providing an extensive characterization of the gold biomineralization process by a model bacterial biofilm. We also demonstrate QCM as a cheap, user-friendly sensing platform and alternative to standard analytical techniques for studies requiring high-resolution quantitative details, which offers promising opportunities in heavy-metal sensing, gold recovery, and industrial waste treatment. | |||||
出版者 | ||||||
出版者 | American Chemical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2379-3694 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/31631654 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1021/acssensors.9b01580 | |||||
権利 | ||||||
権利情報 | © 2019 American Chemical Society. | |||||
情報源 | ||||||
関連名称 | https://pubs.acs.org/page/policy/authorchoice_termsofuse.html | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://pubs.acs.org/doi/abs/10.1021/acssensors.9b01580 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |