论文标题

生命的耗散光化学起源:腺嘌呤的UVC abiogogenis

A Dissipative Photochemical Origin of Life: The UVC Abiogenisis of Adenine

论文作者

Michaelian, Karo

论文摘要

我描述了可能参与生命的基本分子的耗散结构,增殖和进化,从较简单,更常见的前体分子下,在印象深刻的uvc光子的光子下,可能参与了生命来源的耗散结构,增殖和演变。基本分子的耗散结构在该波长区域中的强和宽波长吸收带和无辐射降解的快速降解证明了基本分子的耗散结构。增殖来自中间产品的自动和跨催化性质。由于系统具有多种固定态,由于光学和化学反应的非线性随着扩散的扩散而产生了众多的固定状态,因此朝向普通光子异常功效的浓度状态的进化产生,这可以通过分子浓度在分子附近波动的扩增来达到。在热海面上的脂肪酸囊泡中,给出了一个示例,从前体HCN和h $ _2 $ o的腺嘌呤的光化学耗散性亚生成症给出了一个示例,这是由印象深刻的UVC光驱动的。动力学方程在不同的环境条件下解决,并在经典不可逆的热力学理论框架内分析的结果。

I describe the non-equilibrium thermodynamics and the photochemical mechanisms which may have been involved in the dissipative structuring, proliferation and evolution of the fundamental molecules at the origin of life from simpler and more common precursor molecules under the impressed UVC photon flux of the Archean. Dissipative structuring of the fundamental molecules is evidenced by their strong and broad wavelength absorption bands and rapid radiationless dexcitation in this wavelength region. Proliferation arises from the auto- and cross-catalytic nature of the intermediate products. Evolution towards states of concentration profiles of generally increasing photon disspative efficacy arises since the system has numerous stationary states, due to the non-linearity of the photochemical and chemical reactions with diffusion, which can be reached by amplification of a molecular concentration fluctuation near a bifurcation. An example is given of photochemical dissipative abiogenisis of adenine from the precursors HCN and H$_2$O within a fatty acid vesicle on a hot ocean surface, driven far from equilibrium by the impressed UVC light. The kinetic equations are resolved under different environmental conditions and the results analyzed within the framework of Classical Irreversible Thermodynamic theory.

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