Martin Fisk,Radu Popa
Martin Fisk
Decorated vesicles in deep, seafloor basalts form abiotically, but show at least four life-analogous features, which makes them a candidate for origin of life research. These features are a physical enclosure, carbon-assimilatory catalysts,...
Hayley Boigenzahn,Praful Gagrani,John Yin
Hayley Boigenzahn
The dynamic behaviors of prebiotic reaction networks may be critically important to understanding how larger biopolymers could emerge, despite being unfavorable to form in water. We focus on understanding the dynamics of simple systems, pri...
Sequential Amplification of Amino Acid Enantiomeric Excess by Conglomerate and Racemic Compound: Plausible Prebiotic Route Towards Homochirality [0.03%]
手性氨基酸序列放大： conglomerate及外消旋化合物可能的生前手性选择机制
A Sharma
A Sharma
Some amino acids can crystallize from aqueous solution both as conglomerates and racemic compounds: under high supersaturation following rapid evaporation, dissolved amino acids draining over porous sand-bars behave like conglomerates where...
Did Salts in Seawater Play an Important Role in the Adsorption of Molecules on Minerals in the Prebiotic Earth? The Case of the Adsorption of Thiocyanate onto Forsterite-91 [0.03%]
地球海水中的盐类在前生命时代对矿物表面分子吸附的作用重要吗？以黄铁矿-91表面硫氰酸根的吸附为例
Giulio Wilgner Ferreira,Rafael Block Samulewski,Flávio Francisco Ivashita et al.
Giulio Wilgner Ferreira et al.
Thiocyanate may have played as important a role as cyanide in the synthesis of several molecules. However, its concentration in the seas of the prebiotic Earth could have been very low. Thiocyanate was dissolved in two different seawaters: ...
The Possible Role of Anoxic Alkaline High Subcritical Water in the Formation of Ferric Minerals, Methane and Disordered Graphitic Carbon in a BARB3 Drilled Sample of the 3.4 Ga Buck Reef Chert [0.03%]
贫氧碱性亚临界水在巴布3钻探的38亿年布尔吉斯页岩状层带铁矿物、甲烷和无定形类石墨碳形成中的可能作用：来自巴氏纪布克斯礁燧石的证据
Marie-Paule Bassez
Marie-Paule Bassez
The present article reports Raman spectroscopic observations of siderite, hematite, disordered graphitic carbon and possibly greenalite inside the quartz matrix of a banded iron sample from the BARB3 core drilled inside the 3.4 Ga Buck Reef...
Dhanalakshmi Vadivel,Daniele Dondi
Dhanalakshmi Vadivel
Enantiomers have a different energy due to the parity violation effects. Up to now, these effects are difficult to calculate and their final effect on the choice of one enantiomer in the homochirality issue is still a matter of debate. Neve...
Magnetic Circular Dichroism in Archean Stratospheric Oxygen: Enantiomeric Excess of Amino Acids Produced in Volcanic Plumes [0.03%]
阿昌宁地磁圆二色性：火山羽流中氨基酸旋光异构体过量产生中的作用
A Sharma
A Sharma
While there is consensus that Archean atmosphere was anoxic with O2 pressure, p(O2)
Nonenzymatic Template-Directed Primer Extension Using 2'-3' Cyclic Nucleotides Under Wet-Dry Cycles [0.03%]
用于模板指导的 primer 延伸反应的 2'-3' 环式核苷酸在干湿循环条件下的非酶促合成
Shikha Dagar,Susovan Sarkar,Sudha Rajamani
Shikha Dagar
RNA World Hypothesis is centred around the idea of a period in the early history of life's origin, wherein nonenzymatic oligomerization and replication of RNA resulted in functional ribozymes. Previous studies in this endeavour have demonst...
Matthew Egbert,Martin M Hanczyc,Inman Harvey et al.
Matthew Egbert et al.
It is common in origins of life research to view the first stages of life as the passive result of particular environmental conditions. This paper considers the alternative possibility: that the antecedents of life were already actively reg...
Glycine to Oligoglycine via Sequential Trimetaphosphate Activation Steps in Drying Environments [0.03%]
干燥环境中经由三磷酸盐活化步骤合成甘氨酸至寡甘氨酸的过程
Hayley Boigenzahn,John Yin
Hayley Boigenzahn
Polyphosphate-mediated peptide bond formation is central to protein synthesis in modern organisms, but a simpler form of activation likely preceded the emergence of proteins and RNA. One suggested scenario involves trimetaphosphate (TP), an...