ATPase VPS4 protein drives the membrane scission. Calicheamicins target DNA and cause strand scission. Reduction with lithium results in scission of one C-S bond. Asymmetric scission of a bond is called heterolysis. The Haber process relies on catalysts that accelerate the scission of this triple bond. Today's Movistar Team is the current scission. This polymer chain scission weakens the strength of the modified PTFE. Under oxidative environment, SPES can undergo sulfonic group detachment and main chain scission. The photo-oxidation reactions include chain scission, cross linking and secondary oxidative reactions. This radiation-induced chain scission allows it to be more easily reground and reused. If the polymer is relatively brittle, it will exhibit fatigue crack growth through chain scission. The process involves scission of a pyrophosphate bond, analogous to hydrolysis. In solution, however, the dimers dissociate via scission of one Zn-O bond. In solution, the dimers dissociate via scission of zinc-oxygen bonds to each bridging ligand. In organic synthesis, beta scission can be used to direct multistep radical transformations.