Zarley, McKee, Thomte, Voorhees & Sease
Cross-linking proteins with bimetallic tetracarboxylate compounds of transition metals
 Stable cross-linked complexes of transition-metal tetracarboxylates and proteins are formed. The preferred transition-metal is rhodium. The protein may be collagen or an enzyme such as a proteolytic enzyme. 
Iowa State University Research Foundation, Inc.
Y C Y C Y C
Y10S C12N Y10S C12N Y10S C07K
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Nenad M. Jian
Kostic Chen