The deoxyribonucleic acid or DNA, the molecular system that carries the genetic information of living organisms, can transcribe and amplify information using its two helical strands.
Tokyo University of ScienceAug 9 2024 Creating such artificial molecular systems that match or surpass DNA in functionality is of great interest to scientists. Double-helical foldamers are one such molecular system.
In a breakthrough, a team of researchers from Tokyo University of Science, Japan, led by Professor Hidetoshi Kawai from the Department of Chemistry, Faculty of Science, and including Mr. Kotaro Matsumura from the Department of Chemistry, developed a novel mechanical motif, called double-helical monometallofoldamers with controllable chiral switching. Prof.
Interestingly, the helicity of the double-helical monometallofoldamer with chiral chains can be controlled in response to achiral solvents. For example, in non-polar solvents , it becomes left-handed or M-form, and in Lewis basic solvents , it becomes right-handed or the P-form. The conformation of chiral chains introduced into the helix strands was found to be important for this M/P switching.
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