Hemoglobin is the iron-containing
oxygen-transport metalloprotein in the red blood cells. Hemoglobin in the blood carries oxygen from the respiratory organs (lungs or gills) to the rest of the body (i.e. the tissues) where it releases the oxygen to burn nutrients to provide energy to power the functions of the organism, and collects the resultant carbon dioxide to bring it back to the respiratory organs to be dispensed from the organism.
A variant hemoglobin, called fetal hemoglobin (HbF, α2γ2), is found in the developing fetus, and binds oxygen with greater affinity than adult hemoglobin.
One can clearly see the name of Our dear Prophet, intercessor on the Day of Reckoning, the coolness of the hearts of the believers, Muhammad ( صلى الله تعالیٰ عليه وعلی آلہ وصحبہ وبارک وسلم) in a marvelous arabic calligraphy in this structure. Here the two م’s of محمد have been superposed into one – superb! Even more: the next م can also be taken from an adjacent subunit forming another popular form of the Prophet ( صلى الله تعالیٰ عليه وعلی آلہ وصحبہ وبارک وسلم)’s Name in arabic. But wait do you think something is missing-it isn’t.
The Name is repeated four times and hence so should the blesssing- yeah see the figure of porphyrin – it is an abbreviated ص for صلى الله تعالیٰ عليه وعلی آلہ وصحبہ وبارک وسلم.
Aashiqs see this name almost everywhere e.g. in myoglobin too. Have a look.
I will be very glad if you add more structures to the list.