Metal phosphorus trichalcogenides

Transition-metal phosphorus trichalcogenides such as MnPS3 are able to intercalate amino acids and peptides by ion exchange. In this way, increases in the basal spacing of 0.7 and 3-4 nm are observed for the intercalation of poly-L-lysine and lysozyme, respectively [224]. Interestingly, the enzymatic activity of the immobilized protein has been detected, suggesting that the enzyme is protected against denaturation. 

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