keywords Aptamers Aptazymes BACILLUS-SUBTILIS BINDING Biosensing CATALYTIC DNA CONTROLS GENE-EXPRESSION Chemistry Chemistry, Analytical DNAzymes Fluorescence Functional nucleic acids IN-VITRO SELECTION In vitro selection Life Sciences & Biomedicine MESSENGER-RNA STRUCTURE MOLECULAR RECOGNITION Molecular recognition elements Nucleic acid enzymes Physical Sciences RIBOSWITCHES Radiology, Nuclear Medicine & Medical Imaging Remote Sensing Ribozymes S-ADENOSYLMETHIONINE SWITCHING SIGNALING APTAMERS Science & Technology Technology