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Keywords:

  • biodegradable;
  • orientation;
  • polyion complex;
  • RNA film;
  • RNA/lipid complex

Abstract

Strong films were prepared from an RNA/lipid complex by casting from organic solutions. RNA (mainly tRNA) was extracted from yeasts, followed by a replacement of the sodium counterions of the tRNA phosphate units by cationic amphiphiles. RNA units in the RNA/lipid film could be aligned in one direction by stretching due to the presence of intermolecular hydrogen bonds. The film showed physical strength and was biodegradable.