... have used this time the valency hybrid tetramers As a result, the b chain was found to acquire a noticeable resistance against the acidic autoxidation in a manner of contacting with the a chain, ... of the a1 b1 or a2 b2 contact greatly suppresses the autoxidation rate, particularly of the b chains [8] In the autoxidation reaction of HbO2, as well as MbO2, pH can affect the rate in many different ... At the a1 b1 and a2 b2 interfaces, on the other hand, negligible changes are found insofar as the crystal structure was examined Consequently, these are called simply the packing contacts, and their...