Unpaired Electron in Biomolecules

Electron Microscopy of Biomolecules

Electron Collisions with Biomolecules

We report on results of recent studies of collisions of low-energy electrons with nucleobases and other DNA constituents. A particular focus of these studies has been the identification and characterization of resonances that play a role in electron attachment leading to strand breaks in DNA. Comparison of the calculated resonance positions with results of electron transmission measurements is ...

Electron Spin Resonance of Biomolecules

Electron-density topology in molecular systems: paired and unpaired densities.

This work studies the partitioning of the electron density into two contributions which are interpreted as the paired and the effectively unpaired electron densities. The topological features of each density field as well as of the total density are described localizing the corresponding critical points in simple selected molecules (local formalism). The results show that unpaired electron-dens...

Low energy electron-driven damage in biomolecules

The damage induced by the impact of low energy electrons (LEE) on biomolecules is reviewed from a radiobiological perspective with emphasis on transient anion formation. The major type of experiments, which measure the yields of fragments produced as a function of incident electron energy (0.1−30 eV), are briefly described. Theoretical advances are also summarized. Several examples are presente...