Genetic and chemical modification of cells for selective separation and analysis of heavy metals of biological or environmental significance

Genetic and chemical modification of cells for selective separation and analysis of heavy metals of biological or environmental significance
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对细胞进行遗传和化学修饰,用于选择性分离和分析具有生物或环境意义的重金属

DOI:
10.1016/j.trac.2014.11.016
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发表时间:
2015-03
期刊:
TrAC-TRENDS IN ANALYTICAL CHEIMSTRY
影响因子:
--
通讯作者:
Wang Jian-Hua
Wang Jian-Hua
中科院分区:
其他
文献类型:
--
作者:
Yang Ting;Chen Ming-Li;Wang Jian-Hua

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生物累积是指微生物或其他生物细胞从周围环境中累积重金属物质的能力。在重金属修复和贵金属回收领域引起了广泛关注。生物累积也显示出吸附和预富集超痕量重金属的巨大潜力,以便进行分析和形态分析。生物细胞的基因工程和化学修饰为重金属物种的生物累积预富集开辟了新的途径,以便结合光谱技术对这些金属进行选择性分析和形态分析。我们重点介绍了遗传和化学方法在生物修复中的最新进展及其在重金属物种选择性富集和形态分析中的应用。我们还概述了吸收机制的生物富集和重金属的生物吸附及其分析和形态的关键问题。最后,我们讨论了未来的前景,在生物积累的重金属物种和他们的分析和形态。
Bioaccumulation describes the ability for microbes or other biological cells to accumulate heavy-metal species from the ambient environment. It has attracted extensive attention in the field of heavy metal remediation and precious metal recovery. Bioaccumulation has also shown great potential for adsorption and preconcentration of ultra-trace levels of heavy metals for their analysis and speciation. Genetic engineering and chemical modification of biological cells open up new avenues for bioaccumulative preconcentration of heavy-metal species for selective analysis and speciation of such metals in combination with spectrometric techniques. We focus on recent progress in genetic and chemical approaches to bioremediation and their applications in selective preconcentration and speciation of heavy-metal species. We also outline the uptake mechanisms of bioaccumulation and key issues in the biosorption of heavy metals and their analysis and speciation. Finally, we discuss future perspectives in the bioaccumulation of heavy-metal species and their analysis and speciation.
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