Radiation chemical aspects of the origins of life

被引：14

作者：

Cataldo, Franco ^{[1
,2
]}

Iglesias-Groth, Susana ^{[3
]}

机构：

[1] Actinium Chem Res Inst, Via Casilina 1626A, I-00133 Rome, Italy

[2] Univ Tuscia, Via S Camillo de Lellis, Viterbo, Italy

[3] Inst Astrofis Canarias, Via Lactea S-N, Tenerife 38200, Spain

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 311卷 / 02期

关键词：

Origins of life; Radiolysis; Amino acids; Nucleobases; Radioracemization; Tunneling; CIRCULARLY-POLARIZED LIGHT; PROTEINACEOUS AMINO-ACIDS; RAY-INDUCED CARBOXYLATION; INTERSTELLAR ICE ANALOGS; SOLID-STATE RADIOLYSIS; N-ACYLATED AZIRIDINONE; CHIRAL AMPLIFICATION; AQUEOUS-SOLUTIONS; GAMMA-RADIOLYSIS; BIOMOLECULAR HOMOCHIRALITY;

D O I：

10.1007/s10967-016-4914-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A review is presented on the abiotic synthesis of amino acids and purine and pyrimidine bases in processes involving the action of high energy radiation. It is shown that all the 20 proteinogenic amino acids and a selection of non-proteinogenic amino acids are able to "survive" to 14 MGy, equivalent to the calculated dose received by these molecules in 4.6 billions of years buried in comets and asteroids. Even the enantiomeric enrichment is preserved after 14 MGy. The review is closed with some considerations on the role which could be played by radiation-induced polymerization with enhancement of optical activity or occurring at very low temperatures with a tunneling mechanism, in the abiotic synthesis of information macromolecules.

引用

页码：1081 / 1097

页数：17

共 134 条

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