磁性、FeS胶体和生命起源
Magnetism, FeS colloids, and Origins of Life
摘要：
生命系统的一些特征：可逆的相互作用和弱键的动力学基础;凝胶-溶胶转变;细胞连接的分形组织;相互作用和组织的不对称性;量子相干现象;仅举几例，可以通过$physical$相互作用进行自然解释，因此，我们试图通过扩大“纯化学”方法的视野来纳入生命起源。有人建议，从无机世界的矿物的磁性“脸”，公认的在启动生命中发挥了关键作用，可能会抛出这些问题的一些光。在冥古宙海洋中以岩石形式存在的磁性环境可能使超顺磁性胶体能够吸积，从而有序地限制在结构化的相内。适度的H场不仅可以帮助磁性纳米颗粒克服热波动，还可以利用它们。这种受控的动力学带来了访问量子效应的可能性，它与磁有序和滞后（原始记忆的自然机制）的挫折一起可以揭示生物信息的诞生，正如阿贝尔所说，需要有序和复杂性的结合。这种情况下获得的力量，从观察无标度framboidal形式的云英岩矿物，与组装的磁性基础。在罗素和同事的土墩方案中，钙铝榴石的代谢潜力起着关键作用，建议将磁性包括在内。
英文摘要：
A number of features of living systems: reversible interactions and weak bonds underlying motor-dynamics; gel-sol transitions; cellular connected fractal organization; asymmetry in interactions and organization; quantum coherent phenomena; to name some, can have a natural accounting via $physical$ interactions, which we therefore seek to incorporate by expanding the horizons of `chemistry-only' approaches to the origins of life. It is suggested that the magnetic 'face' of the minerals from the inorganic world, recognized to have played a pivotal role in initiating Life, may throw light on some of these issues. A magnetic environment in the form of rocks in the Hadean Ocean could have enabled the accretion and therefore an ordered confinement of super-paramagnetic colloids within a structured phase. A moderate H-field can help magnetic nano-particles to not only overcome thermal fluctuations but also harness them. Such controlled dynamics brings in the possibility of accessing quantum effects, which together with frustrations in magnetic ordering and hysteresis (a natural mechanism for a primitive memory) could throw light on the birth of biological information which, as Abel argues, requires a combination of order and complexity. This scenario gains strength from observations of scale-free framboidal forms of the greigite mineral, with a magnetic basis of assembly. And greigite's metabolic potential plays a key role in the mound scenario of Russell and coworkers-an expansion of which is suggested for including magnetism.
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