ACE PasteAtomspheric Carbon Extractor. Harvests the greenhouse gases for Carbon, to be used for diamondoid fabrication. A well-designed paste could harvest 100 or more times its empty weight.


Adensoine Triphosphate (ATP): A chemical compound that functions as fuel for biomolecular nanotechnology having the formula, C10H16N5O13P3.


Assembler: A molecular machine that can be programmed to build virtually any molecular structure or device from simpler chemical building blocks by positioning molecules and guiding chemical reactions.


Atomic Layer Deposition (ALD): A self-limiting, sequential surface chemistry that deposits conformal thin-films of materials onto substrates of varying compositions. ALD film growth is self-limited and based on surface reactions, which makes achieving atomic scale deposition control possible. By keeping the precursors separate throughout the coating process, atomic layer control of film grown can be obtained as fine as ~ 0.1 angstroms per monolayer. 


Atomic Force Microscope (AFM): Also termed a scanning force microscope (SFM). An instrument able to image surfaces to molecular accuracy by mechanically probing their surface contours. AFM works on the basis of monitoring deflection of a sharp stylus mounted on a soft spring as the stylus is moved across a surface. If the deflection is kept constant by moving the surface up and down by measured increments, the result (under favourable conditions) is an atomic-resolution topographic map of the surface.


Atomic Manipulation: Manipulating atoms, typically with the tip of an Scanning Tunnel Microscopy. 


Atomistic Simultations: Atomic motion computer simulations of macromolecular systems are increasingly becoming an essential part of materials science and nanotechnology. Recent advances in supercomputer simulation techniques provide the necessary tools for performing computations on nanoscale objects containing as many as 300,000 atoms and on materials simulated with 1,000,000 atoms. This new capability will allow computer simulation of mechanical devices or molecular machines using nanometer size components. 

Autogenous control: -In biochemistry, the action of a gene product that either inhibits (negative autogenous control) or activates (positive autogenous control) expression of the gene coding for it.