Covalent Bond
An attachment of two atoms resulting from sharing a pair of electrons. The covalent bond is what holds together the components of molecular machinery.
Articles on KurzweilAI.net that refer to Covalent Bond
How To Make a Nanodiamond By Robert A. Freitas Jr.Design of a Primitive Nanofactory By Chris Phoenix
It's a Small, Small, Small, Small World By Ralph C. Merkle
Engines of Creation 2.0: Molecular Engineering: An Approach to the Development of General Capabilities for Molecular Manipulation By K. Eric Drexler