UV-Induced Nanoparticles-Formation, Properties and Their Potential Role in Origin of Life

Nanomaterials

卷:10

Kristyna Zemankova¹  David Hynek¹  Marketa Vaculovicova¹  Lukas Nejdl¹  Vojtech Adam¹  Martina Matouskova¹  Michaela Buresova¹  Kledi Xhaxhiu²  Martin Ferus³  Filip Mravec⁴  Martina Havlikova⁴  Jakub Kapus⁵ 

[1] Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ 613 00 Brno, Czech Republic;

[2] Department of Chemistry, Faculty of Natural Sciences, University of Tirana, Blv. Zog I, Nr. 2/1, 1001 Tirana, Albania;

[3] J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences Dolejskova 3, 182 23 Prague 8, Czech Republic;

[4] Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic;

[5] Slovak Organisation for Space Activities, Zamocka 5, 811 03 Bratislava, Slovakia;

关键词: UV-induced nanoparticles;    origin of life;    metal ions;    thiols;    nanoparticle-based world;    nanozymes;   

DOI  :  10.3390/nano10081529

来源: DOAJ

【 摘 要 】

Inorganic nanoparticles might have played a vital role in the transition from inorganic chemistry to self-sustaining living systems. Such transition may have been triggered or controlled by processes requiring not only versatile catalysts but also suitable reaction surfaces. Here, experimental results showing that multicolor quantum dots might have been able to participate as catalysts in several specific and nonspecific reactions, relevant to the prebiotic chemistry are demonstrated. A very fast and easy UV-induced formation of ZnCd quantum dots (QDs) with a quantum yield of up to 47% was shown to occur 5 min after UV exposure of the solution containing Zn(II) and Cd(II) in the presence of a thiol capping agent. In addition to QDs formation, xanthine activity was observed in the solution. The role of solar radiation to induce ZnCd QDs formation was replicated during a stratospheric balloon flight.

【 授权许可】

Unknown