A low cost high intensity flash device for photolysis experiments.
Novel techniques of flash photolysis experiments require high intensity light sources in the near UV. We describe here a simple and inexpensive flash device which may complete with bulky and expensive laser systems if the experiments do not necessitate very short light pulses. Using a particular optical arrangement and stored electrical energy, a variation of the parameters voltage and capacitance led to a difference in light output by a factor of more than two. The system is used to relax both skeletal and smooth muscle fibres in the rigor state by releasing up to 2 mM ATP from 12.5 mM caged-ATP.
Rapp
G
G
Abteilung Biophysik, Max-Planck-Institut für medizinische Forschung, Heidelberg, Federal Republic of Germany.
Güth
K
K
D000255:Adenosine Triphosphate / Q000378:metabolism*; D000818:Animals; D009119:Muscle Contraction; D009126:Muscle Relaxation; D009130:Muscle, Smooth / Q000502:physiology; D009132:Muscles / Q000502:physiology; D010782:Photolysis; D013672:Technology
D000255:Adenosine Triphosphate