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Du Vigneaud's synthesis proved you could make a complex peptide hormone with biological activity using chemistry alone

and constricts blood vessels in the skin and gut

clinical pharmacists and neuroscientists

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diamond crystal structure necklace | silver chain Du Vigneaud's synthesis proved youDiamond crystal structure necklace sterling silver If you teach crystallography or have memorised the tetrahedral bonding patterns of carbon, you know that diamond and graphite are both pure carbon. Same element, opposite properties. Diamond's hardness comes entirely from how the atoms are arranged in three dimensional space, not from anything special about the atoms themselves. The Science Behind Diamond Diamond is pure carbon with every atom sp3