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Binary (Split) Light‐up Aptameric Sensors
Author(s) -
Kolpashchikov Dmitry M.,
Spelkov Alexander A.
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201914919
Subject(s) - nucleic acid , aptamer , oligonucleotide , chemistry , analyte , molecular beacon , fluorescence , rna , dna , combinatorial chemistry , biosensor , nanotechnology , materials science , chromatography , microbiology and biotechnology , biochemistry , biology , physics , quantum mechanics , gene
This Minireview discusses the design and applications of binary (also known as split) light‐up aptameric sensors (BLAS). BLAS consist of two RNA or DNA strands and a fluorogenic organic dye added as a buffer component. When associated, the two strands form a dye‐binding site, followed by an increase in fluorescence of the aptamer‐bound dye. The design is cost‐efficient because it uses short oligonucleotides and does not require conjugation of organic dyes with nucleic acids. In some applications, BLAS design is preferable over monolithic sensors because of simpler assay optimization and improved selectivity. RNA‐based BLAS can be expressed in cells and used for the intracellular monitoring of biological molecules. BLAS have been used as reporters of nucleic acid association events in RNA nanotechnology and nucleic‐acid‐based molecular computation. Other applications of BLAS include the detection of nucleic acids, proteins, and cancer cells, and potentially they can be tailored to report a broad range of biological analytes.