The latest short science news items from C&EN. Open an introductory chemistry textbook. What is a covalent bond? A covalent bond occurs when atoms share electrons in a molecule. What is a hydrogen ...

Since the 1960s, chemists have known about an unusual type of hydrogen bond: one that can form between the amide hydrogen and the carbonyl oxygen in the same amino acid. But it’s been hard to show ...

For the first time, researchers have succeeded in developing an artificial DNA base pair that is based on a different ...

A new catalyst for breaking the tough molecular bond between carbon and hydrogen holds the promise of a cleaner, easier, cheaper way to derive products from petroleum, say researchers. Simple, ...

Protein kinases have long been prime targets for cancer therapy owing to their central importance in controlling cellular growth pathways 1. Today, numerous ATP-competitive kinase inhibitors are ...

Hydrogen bonds are at the very core of life as we know it, and now for the first time ever scientists have managed to visualize these transient molecular associations. This technique can be used to ...

(Nanowerk Spotlight) Hydrogen bond base pairing forces are essential for the mechanisms associated with DNA stability. Despite attracting great research attention, this fundamental interaction has ...

The carbon-hydrogen bond -- 2/3 of all bonds in hydrocarbons -- has defied chemists' attempts to open it up and add new chemical groups. A team has now cracked the strongest of C-H bonds, those on a ...

Nobel Laureate Linus Pauling, Ph.D., predicted in 1939 that hydrogen bonding would prove to be more significant in the field of biology than any other type of chemical bond. His prediction has been ...

German and US scientists recently reported an unusual feat: they observed the world's fastest chemical reaction, during which hydrogen atoms bind onto and then leave a sheet of graphene, all within ...

Using a technique called high-resolution atomic force microscopy (AFM), researchers in China have visualized the molecular structure of a hydrogen bond. Image: AFM images of 8-hydroxyquinoline on a ...