Development of new separation methods of materials with strong magnetic fields

科学史表明，物质分离是科学中最重要的目标之一。在这项研究中，开发了新的方法，用于材料分离，通过使用强磁场。结果，我们实现了氢同位素的高效分离、高分辨率DNA电泳和生物物质的抗磁性分离。此外，我们还开发了能够产生高磁力的新磁体，用于各种材料的磁性分离。(1)研究了磁场对金属离子分离氢同位素能力的影响。吸氢反应后的气相中的氘浓度增加，增加所施加的磁场的铁磁性的LaCos，但不为顺磁性的LaNis。(2)在高达12 T的磁场的影响下进行DNA的电泳。DNA分子的运动速度强烈地依赖于它们的大小和强度， ...更多信息 真实（线性的圆形）以及磁场强度。这导致了DNA的高分辨率，可以区分大小和结构的微小差异。(3)通过磁阿基米德效应，磁力取决于目标物质的磁化率以及其周围物质的磁化率。这种效应适用于分离弱磁性材料，如生物和环境物质。事实上，我们可以清楚地分离几种胶原蛋白。磁分离是一种对生物系统无损伤的分离方法。(4)Tn此外，在我们的研究中还首次发现了新的磁性机制。利用感生磁偶极相互作用对弱磁性粒子的结构进行控制是可能的。在水溶液中观察到单个顺磁离子的磁力诱导迁移（磁迁移）。(5)我们用高温超导体柱来增强磁力。例如，磁力场B（dB/dz）从564 T2/m增加到1029 T2/m。少

The history of science has shown that materials separation is one of the most important targets in science. In this study, new methods for materials separation were developed by using strong magnetic fields. As a result, we realized a highly efficient separation of hydrogen isotope, a high-resolution DNA electrophoresis and a diamagnetic separation of biological substances. Moreover, we developed new magnets which were able to produce high magnetic forces for magnetic separation of various materials.(1) The influence of magnetic fields was investigated on the ability of hydrogen isotope separation with metal hydrides. The deuterium concentration in the gas phase after hydrogen-absorbing reactions was increased with increasing applied magnetic fields for ferromagnetic LaCos, but not for paramagnetic LaNis. (2) The electrophoresis of DNA's was performed under the influence of magnetic fields up to 12T. The electrophoreic velocity of DNA molecules strongly depended on their size and stric … More ture (linear of circular) as well as the magnetic field strength. This leads to a high-resolution of DNA which can distinguish small differences in size and structure. (3) The magnetic force depends on the susceptibility of the target substance as well as that of its ambient substance by the magnetic Archimedes effect. This effect is applicable to separate weakly magnetic materials, such as biological and environmental substances. Actually, we can separate several kinds of collagens clearly. The magnetic separation is non-invasive method to biological systems. (4)Tn addition, new magnetic mechanisms have been found during our study for the first time. The control of structure is possible for feeble magnetic particles by utilizing induced magnetic dipole interaction. The magnetic force-induced migration (magnetomigration) of a single paramagnetic ion was observed in the aqueous solution. (5) We enhanced the magnetic force by using a high temperature superconducting bulk cylinder. For instance, the magnetic force field B(dB/dz) increased from 564T2/m to 1029T2/m. Less