Each of these macrocyles has an alternating double-bond pathway (in blue ... or near infrared light. Hemoglobin is a porphyrin that lends blood its red color; chlorophyll, the pigment in green ...

2 We know from in vivo studies that the antioxidants in liquid chlorophyll scavenge free radicals and activate various detoxification pathways ... is a precursor to hemoglobin, the protein ...

Porphyrins are large, cyclic organic compounds that play crucial roles in biological systems, such as in hemoglobin and chlorophyll ... explore new coordination pathways and develop ...