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Microalgas: ¿los primeros ingenieros nucleares? / Microalgae: the first nuclear engineers?
Baselga-Cervera, Beatriz; López-Rodas, Victoria; García-Balboa, Camino; Costas, Eduardo.
Affiliation
  • Baselga-Cervera, Beatriz; Complutense University. Facultad de Veterinaria. Madrid. Spain
  • López-Rodas, Victoria; Complutense University. Facultad de Veterinaria. Madrid. Spain
  • García-Balboa, Camino; Complutense University. Facultad de Veterinaria. Madrid. Spain
  • Costas, Eduardo; Complutense University. Facultad de Veterinaria. Madrid. Spain
An. R. Acad. Farm ; 79(4): 634-645, oct.-dic. 2013. ilus, tab
Article in English | IBECS | ID: ibc-118842
Responsible library: ES1.1
Localization: BNCS
ABSTRACT
Self-sustaining nuclear chain reactions ran spontaneously 1.7 billion years ago at Oklo (Gabon, Africa) are a mystery. It was hypothesized that the microalgae concentrated enough rich-uranium in Oklo as for a natural reactor to start operating. The key to understanding as microalgae could do this is in an extremely U-contaminated pond of Saelices uranium-mine (Spain). Some microalgae colonized this extreme pond due to spontaneous mutations of single-genes. These U-resistant microalgae concentrate 115 mg U/g dried-biomass by bio-adsorption and bioaccumulation and are able to enrich uranium producing isotopic fractionation 235U/238U. Consequently, microalgae could be able to build a nuclear reactor in appropriate circumstances (AU)
RESUMEN
Las reacciones nucleares en cadena auto-sostenibles que ocurrieron espontáneamente hace 1.700 millones años en Oklo (Gabón, África) son un misterio. Hipotéticamente las microalgas concentraron suficiente uranio enriquecido para que un reactor nuclear natural comenzara a operar. La clave está en un estanque contaminado por uranio en la mina de Saelices (España). Algunas microalgas colonizaron este estanque extremo debido a mutaciones espontáneas de genes individuales. Estas microalgas Uranio-resistentes concentran 115 mg U / g de biomasa seca mediante bio-absorción y bioacumulación, siendo capaces de enriquecer uranio produciendo fraccionamiento isotópico 235U/238U. Estas microalgas podrían construir un reactor nuclear en circunstancias apropiadas (AU)
Subject(s)
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Collection: National databases / Spain Database: IBECS Main subject: Microalgae / Nuclear Energy Language: English Journal: An. R. Acad. Farm Year: 2013 Document type: Article Institution/Affiliation country: Complutense University/Spain
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Collection: National databases / Spain Database: IBECS Main subject: Microalgae / Nuclear Energy Language: English Journal: An. R. Acad. Farm Year: 2013 Document type: Article Institution/Affiliation country: Complutense University/Spain
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