論文 - 詳細
| RRC ID | 20333 |
|---|---|
| 著者 | Nagase H, Inthorn D, Oda A, Nishimura J, Kajiwara Y, Park MO, Hirata K, Miyamoto K. |
| タイトル | Improvement of selective removal of heavy metals in cyanobacteria by NaOH treatment. |
| ジャーナル | J Biosci Bioeng |
| Abstract |
In the freshwater cyanobacterium, Tolypothrix tenuis, treatment with 0.1 M NaOH increased its Cd-selective adsorption ability in the presence of Ca(2+) or Mg(2+). The selective adsorption was also achieved by other alkaline treatments. Energy-distributed spectroscopy analysis revealed that Cd(2+) was found mainly on the surface of non-treated cells, whereas it was distributed throughout the cell after NaOH treatment. The alkaline treatment was effective in increasing the selective adsorption ability of the cyanobacterium for other bivalent heavy metals such as Cu(2+), Pb(2+) and Zn(2+). The treatment was also applicable to Anabaena variabilis and Microcystis aeruginosa, which are typical cyanobacteria causing algal blooms. The main binding site of Cd(2+) in NaOH-treated cells is assumed to be the carboxyl groups because the binding ability of the cells was diminished by the esterification of carboxyl groups. These results suggest that alkaline treatment of cyanobacteria is a useful technique for producing biosorbents having highly specific binding abilities for heavy metals. |
| 巻・号 | 99(4) |
| ページ | 372-7 |
| 公開日 | 2005-4-1 |
| DOI | 10.1263/jbb.99.372 |
| PII | S1389-1723(05)70381-9 |
| PMID | 16233804 |
| MeSH | Adsorption Cadmium / isolation & purification Cadmium / metabolism Calcium / metabolism* Cyanobacteria / drug effects Cyanobacteria / metabolism* Humans Industrial Waste Metals, Heavy / isolation & purification* Metals, Heavy / metabolism* Sodium Hydroxide / pharmacology* Water Pollutants / isolation & purification Water Pollutants / metabolism Water Purification / methods* |
| IF | 2.366 |
| 引用数 | 18 |
| WOS 分野 | FOOD SCIENCE & TECHNOLOGY BIOTECHNOLOGY & APPLIED MICROBIOLOGY |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | Patent(IFI CLAIMS) |
| 各媒体での言及数の合計 | 3 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| 藻類 | NIES-23 NIES-44 |