ABSTRACT
In this chapter, recent research on photo-or radiobiological phenomena is reviewed in which the underlying processes are considered to be initiated from specified photoabsorption events in biologically relevant atoms or molecules. The energy range of photons covered in this chapter is above 5 eV. Therefore synchrotron radiation (SR) is a key word in the chapter. Molecules or samples reviewed in this chapter are mainly restricted to biologically relevant molecules or living cells. Because of the complexity of these samples, entire mechanisms from photoabsorption to biological consequences have not been elucidated in most cases, and much remains to be studied in the future. Because earlier studies published before 1990 have already been reviewed elsewhere [1-3], most of the referred papers in this chapter are those after 1990. Also, many vacuum ultraviolet (VUV) studies appeared in Photochem. Photobiol. Vol. 44, No.3 (1986), which is a special issue dedicated to VUV work. What characterize this chapter are samples, which include biomolecules, water, and living cells.
