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Updated: Jul 22, 2026

Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
Published on: May 25, 2016
Unprecedented acceleration of zirconium(IV)-assisted peptide hydrolysis at neutral pH
Miki Kassai1, R Gnana Ravi, Sarah J Shealy
1Department of Chemistry, Center for Biotechnology and Drug Design, Georgia State University, P.O. Box 4098, Atlanta, Georgia 30302-4098, USA.
Abstract:
4,13-Diaza-18-crown-6 substantially increases the rate of zirconium(IV) hydrolysis of unactivated peptide amide bonds under near-physiological conditions of temperature and pH. In the presence of this azacrown ether, ZrCl(4) efficiently hydrolyses both neutral and negatively charged peptides (pH 7.0-7.3, 37-60 degrees C).
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