Freezing Functional Nucleic Acids: From Molecular Reactions to Surface Immobilization.

Biochemical reactions are typically slowed down by decreasing temperature. However, accelerated reaction kinetics have been observed for a long time. More recent examples have highlighted the unique role of freezing in fabricating supermaterials, degrading environmental contaminants, and accelerating bioreactions. Functional nucleic acids are DNA or RNA oligonucleotides with versatile properties, including target recognition, catalysis, and molecular co4mputing. In this review, we discuss the current observations and understanding of freezing-facilitated reactions involving functional nucleic acids. Molecular reactions such as ligation/conjugation, cleavage, and hybridization are discussed. Moreover, freezing-induced DNA-nanoparticle conjugations are introduced. Then, we describe our effect in immobilizing DNA on bulk surfaces. Finally, we address some critical questions and research opportunities in the field.

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