Exactly how nature changes that chemical to one with a different ring structure, when such rings are normally stable, has never been described before. Elucidating the process required ...

Researchers from Tokyo Metropolitan University have developed a new dye that can strongly absorb second near-IR radiation and ...

Chemical structure of guanine, showing its double-ring purine structure and the functional groups involved in hydrogen bonding with cytosine. (Image: Public Domain) Guanine has the chemical formula ...

The chemical structure of uracil, showing its single-ring pyrimidine structure. Uracil forms hydrogen bonds with adenine in RNA, contributing to the molecule's structure and function. (Image: Public ...