Green Chemistry—Sustainability at the Atom Scale

The Atom at Work

Planck’s Scale Dissipative Effects in Atom Interferometry

Atom interferometers can be used to study phenomena leading to irreversibility and dissipation, induced by the dynamics of fundamental objects (strings and branes) at a large mass scale. Using an effective, but physically consistent description in terms of a master equation of Lindblad form, the modifications of the interferometric pattern induced by the new phenomena are analyzed in detail. We...

Conversion of liver haem into N-substituted porphyrins or green pigments. Nature of the substituent at the pyrrole nitrogen atom.

Drugs can promote the conversion of liver haem into modeled porphyrins (or green pigments) of two distinct classes. Pigments of the first class are obtained by treatment with unsaturated drugs containing at least one allyl, vinyl or ethynyl side chain. These drugs are metabolized by cytochrome P450 into reactive derivatives, which then become bound onto the porphyrin nucleus of the haem moiety ...

Green Function Techniques in the Treatment of Quantum Transport at the Molecular Scale

The theoretical investigation of charge (and spin) transport at nanometer length scales requires the use of advanced and powerful techniques able to deal with the dynamical properties of the relevant physical systems, to explicitly include out-of-equilibrium situations typical for electrical/heat transport as well as to take into account interaction effects in a systematic way. Equilibrium Gree...

Effective potentials for atom–atom interactions at low temperatures

We discuss the concept and design of effective atom–atom potentials that accurately describe any physical processes involving only states around the threshold. The existence of such potentials gives hope to a quantitative, and systematic, understanding of quantum few-atom and quantum many-atom systems at relatively low temperatures. The concept of the model potential has played an important rol...