Three-Dimensional Uracil Network with Sodium as a Linker

Zivile Giedraityte, Olga Lopez-Acevedo, Leonardo A. Espinosa Leal, Ville Pale, Jani Sainio, Tripurari S. Tripathi, Maarit Karppinen*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)
425 Downloads (Pure)

Abstract

Here we show that uracil and sodium form a three-dimensional metal-mediated nucleic acid network; it is grown in atomic/molecular layer-by-layer manner using the atomic/molecular layer deposition (ALD/MLD) thin-film technique. The long-range ordered Na-uracil crystalline structure is evidenced as sharp Bragg reflections. Based on density functional theory (DFT) calculations, a tetrameric-like crystal structure is proposed. Na-uracil thin films are fluorescent with a lifetime 3 orders of magnitude higher than commonly seen for nucleic acid molecules. Our method provides a new approach to designing 3D nucleic acid-metal nanostructures.

Original languageEnglish
Pages (from-to)26342-26349
Number of pages8
JournalJournal of Physical Chemistry C
Volume120
Issue number46
DOIs
Publication statusPublished - 24 Nov 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • ATOMIC LAYER DEPOSITION
  • RAY CRYSTAL-STRUCTURE
  • GAS-PHASE
  • INFRARED-SPECTRA
  • AQUEOUS-SOLUTION
  • METAL-SURFACES
  • EXCITED-STATE
  • THIN-FILMS
  • RNA BASES
  • DNA

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