We have verified if these results can be extended to not vegetable biological systems. For this pourpose, we have studied the Delayed Luminescence emitted by type I collagen in solution (Sigma C4243) and Achilles’ bovin tendon. Type I collagen is been chosen because it has a well defined elementary structure organized until macroscopic levels.  The collagen has a

To understand the physical origin of Delayed Luminescence (DL), we studied the DL emission of condensed systems. We observed a correlation between DL seams and the more o less organised structure of the condensed systems and that it arises form the presence of collective excitations inside the structure such as excitons. We measured DL emission of various types of crystals, in particular molecular crystals, in which there should be the presence of localised excitos

Yeast cell

The DL of temperature sensitive Saccharomyces Cerevisiae CDC 28-1 was measured in two different conditions: yeast that has been maintained at the restrictive temperature of 38.5 °C for some hours (and for this should be at the same step of the division cycle) and samples that remained always at 23

First of all, we have chosen alga Acetabularia acetabulum (A.a.) as a biological system to test and verify our hypothesis on the DL origin from an experimental and theoretical point of view. The A.a is an unicellular organism containg a photosynthetic system.We have considered the charge transfer processes in systems, which produce photosynthesis. Photosynthesis takes place in chloroplasts, which include so called photosystem I (PSI), that produces NADPH