论文标题

关于电子自旋在生物hodohirality起源中可能作用的可检验假设

A testable hypothesis on the possible role of electron spin in the origin of bio-homochirality

论文作者

Wang, Wei

论文摘要

生物分子同质病的出现是生命起源领域的关键开放问题。为了寻求解决这个不安的问题的答案,随着时间的推移,已经提供了许多机制,但迄今为止,这仍然是一个巨大的挑战。在本文中,基于生命的起源的水热理论,我暂时提出了一个新的假设,即生物分子统一手性的益生元的出现可能是由电子在其矿物质表面上的益生元合成期间的旋转状态特别确定的,矿物质经常扮演着重要的角色。还提出了检验假设的实验模型。考虑到海底水热系统中可能存在的绿岩可能存在的广泛存在,这些系统经常被认为是生命起源的潜在摇篮,如果可以在实验上证明,建议的模型可能暗示着生命的位置和生命如何起源于早期地球。

The emergence of biomolecular homochirality is a critical open question in the field of origins of life. In order to seek out an answer to this unsettled issue, a number of mechanisms have been offered over time, but it still remains a great challenge to date. In this paper, based on the hydrothermal vent theory for the origins of life, I tentatively put forward a new hypothesis that the prebiotic emergence of the uniform chirality of biomolecules might have been specifically determined by the spin state of electrons during their prebiotic syntheses on the surfaces of greigite, a mineral which has been frequently argued to have played an important role in the evolutionary context of life. An experimental model to test the hypothesis has also been proposed. Taken into consideration the possible widespread existence of greigite in submarine hydrothermal vent systems which have been frequently argued as a potential cradle for the origins of life, the suggested model, if could be experimentally demonstrated, may be suggestive of where and how life originated on early Earth.

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