Provincial Key Laboratory of Agricultural Environmental Engineering, College of Resources and Environment, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
Appl Microbiol Biotechnol. 2012 Sep;95(5):1097-104. doi: 10.1007/s00253-012-4245-3. Epub 2012 Jul 5.
Magnetotactic bacteria (MTB), which can orient and migrate along a magnetic line of force due to intracellular nanosized magnetosomes, have been a subject of research in the medical field, in dating environmental changes, and in environmental remediation. This paper reviews the recent development of MTB as biosorbents for heavy metals. Ultrastructures and taxis of MTB are investigated. Adsorptions in systems of unitary and binary ions are highlighted, as well as adsorption conditions (temperature, pH value, biomass concentration, and pretreatments). The separation and desorption of MTB in magnetic separators are also discussed. A green method to produce metal nanoparticles is provided, and an energy-efficient way to recover precious metals is put forward during biosorption.
趋磁细菌（MTB）由于细胞内纳米级的磁小体而能够沿磁力线定向和迁移，一直是医学领域、环境变化研究和环境修复领域的研究对象。本文综述了 MTB 作为重金属生物吸附剂的最新研究进展。研究了 MTB 的超微结构和趋性。重点介绍了单一离子和二元离子体系中的吸附，以及吸附条件（温度、pH 值、生物量浓度和预处理）。还讨论了在磁分离器中 MTB 的分离和洗脱。提供了一种生产金属纳米粒子的绿色方法，并在生物吸附过程中提出了一种节能回收贵金属的方法。
