Covalent bonding involves the sharing of electrons ... charged ions are attracted to each other by strong electrostatic forces of attraction. There are usually a large number of these in a lattice ...

Covalent drugs function by forming covalent bonds with specific amino acid residues, enabling sustained modulation of target proteins. Compared with cysteine-targeting strategies, lysine serves as ...

Most organic drugs contain one acid group, usually a carboxylic acid, -COOH, or one basic primary, secondary, or tertiary amino group, NC 1-3, [3,22,27,28,29] that determines the acid-base ...

An art project called the Goodbye Line prompts passersby to make a collect call and say goodbye — to a loved one, a pet or maybe a part of themselves. People are dialing.

State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China ...