An Experimental Framework for Generating Evolvable Chemical Systems in the Laboratory [0.03%]
实验室生成可进化的化学系统的实验框架
David A Baum,Kalin Vetsigian
David A Baum
Most experimental work on the origin of life has focused on either characterizing the chemical synthesis of particular biochemicals and their precursors or on designing simple chemical systems that manifest life-like properties such as self...
Encapsulation of Nucleic Acids into Giant Unilamellar Vesicles by Freeze-Thaw: a Way Protocells May Form [0.03%]
核酸封装到大单层囊泡中的一种方式：冷冻解冻法在原细胞形成中的作用
Hai Qiao,Na Hu,Jin Bai et al.
Hai Qiao et al.
Protocells are believed to consist of a lipid membrane and encapsulated nucleic acid. As the lipid membrane is impermeable to macromolecules like nucleic acids, the processes by which nucleic acids become encapsulated inside lipid membrane ...
Interaction, at Ambient Temperature and 80 °C, between Minerals and Artificial Seawaters Resembling the Present Ocean Composition and that of 4.0 Billion Years Ago [0.03%]
常温及80摄氏度下矿物与模拟今朝和40亿年前大洋体系中海水之间的相互作用
Cristine E A Carneiro,Antonio C Stabile,Frederico P Gomes et al.
Cristine E A Carneiro et al.
Probably one of the most important roles played by minerals in the origin of life on Earth was to pre-concentrate biomolecules from the prebiotic seas. There are other ways to pre concentrate biomolecules such as wetting/drying cycles and f...
Can an Imidazole Be Formed from an Alanyl-Seryl-Glycine Tripeptide under Possible Prebiotic Conditions? [0.03%]
在可能的前生命条件下能从天冬氨酰-丝氨酰-甘氨酸三肽形成咪唑吗？
Alberto Vázquez-Salazar,George Tan,Amanda Stockton et al.
Alberto Vázquez-Salazar et al.
The five-membered heterocyclic imidazole group, which is an essential component of purines, histidine and many cofactors, has been abiotically synthesized in different model experiments that attempt to simulate the prebiotic environment. Th...
Erdmann Weronika,Kaczmarek Łukasz
Erdmann Weronika
To survive exposure to space conditions, organisms should have certain characteristics including a high tolerance for freezing, radiation and desiccation. The organisms with the best chance for survival under such conditions are extremophil...
Punam Dalai,Hannes Lukas Pleyer,Henry Strasdeit et al.
Punam Dalai et al.
On the Hadean-Early Archean Earth, the first islands must have provided hot and dry environments for abiotically formed organic molecules. The heat sources, mainly volcanism and meteorite impacts, were also available on Mars during the Noac...
Prebiotic Synthesis of Glycine from Ethanolamine in Simulated Archean Alkaline Hydrothermal Vents [0.03%]
模拟太古代碱热液喷口环境中乙醇胺的预生物合成glycline反应
Xianlong Zhang,Ge Tian,Jing Gao et al.
Xianlong Zhang et al.
Submarine hydrothermal vents are generally considered as the likely habitats for the origin and evolution of early life on Earth. In recent years, a novel hydrothermal system in Archean subseafloor has been proposed. In this model, highly a...
Effects of Glycine, Water, Ammonia, and Ammonium Bicarbonate on the Oligomerization of Methionine [0.03%]
甘氨酸、水、氨和碳酸氢铵对蛋氨酸寡聚化的影响
Rui Huang,Yoshihiro Furukawa,Tsubasa Otake et al.
Rui Huang et al.
The abiotic oligomerization of amino acids may have created primordial, protein-like biological catalysts on the early Earth. Previous studies have proposed and evaluated the potential of diagenesis for the amino acid oligomerization, simul...
Low Pressure Tolerance by Methanogens in an Aqueous Environment: Implications for Subsurface Life on Mars [0.03%]
甲烷古菌在水环境中的低压忍耐性：对火星地下生命的启示
R L Mickol,T A Kral
R L Mickol
The low pressure at the surface of Mars (average: 6 mbar) is one potentially biocidal factor that any extant life on the planet would need to endure. Near subsurface life, while shielded from ultraviolet radiation, would also be exposed to ...
Measuring Enthalpy of Sublimation of Volatiles by Means of Piezoelectric Crystal Microbalances [0.03%]
采用压电石英晶体微量天平测定挥发性物质的潜热熵焓
Fabrizio Dirri,Ernesto Palomba,Andrea Longobardo et al.
Fabrizio Dirri et al.
Piezoelectric Crystal Microbalances (PCM's) are widely used to study the chemical processes involving volatile compounds in any environment, such as condensation process. Since PCM's are miniaturized sensor, they are very suitable for plane...