One-pot synthesis of water soluble iron nanoparticles using rationally-designed peptides and ligand release
作者:Stefanie Papst、Soshan Cheong、Moritz J. Banholzer、Margaret A. Brimble、David E. Williams、Richard D. Tilley
DOI:10.1039/c3cc41751d
日期:——
Herein we report the rational design of new phosphopeptides for control of nucleation, growth and aggregation of water-soluble, superparamagnetic iron–iron oxide core–shell nanoparticles. The use of the designed peptides enables a one-pot synthesis that avoids utilizing unstable or toxic iron precursors, organic solvents, and the need for exchange of capping agent after synthesis of the NPs.
Zirconium bistriazolylpyridine phosphonate materials for efficient, selective An(<scp>iii</scp>)/Ln(<scp>iii</scp>) separations
作者:Jessica Veliscek-Carolan、Aditya Rawal
DOI:10.1039/c8cc07892k
日期:——
Novel zirconium bistriazolylpyridine phosphonate materials have been developed that selectively extract minor actinides in the presence of excess lanthanide.
Tyrosine modified analogues of the α4β7 integrin inhibitor biotin-R8ERY prepared via Click Chemistry: Synthesis and biological evaluation
作者:Stefanie Papst、Anaïs Noisier、Margaret A. Brimble、Yi Yang、Geoffrey W. Krissansen
DOI:10.1016/j.bmc.2012.02.035
日期:2012.4
Our continuing programme aiming at developing inhibitors of integrin alpha 4 beta 7, a key mediator of various inflammatory diseases, led us to synthesise a library of cell-permeable peptides based on the biotin-R8ERY* template, wherein the tyrosine residue has been modified by using the CuAAC reaction. The peptidomimetics were evaluated in a cell adhesion assay and shown to inhibit Mn2+-activated adhesion of mouse TK-1 T cells to mouse MAdCAM-1. Two of the synthesised peptidomimetics, analogues 11 and 14, are more active than our previously reported lead compound biotin-r(9)YDRREY at concentrations of 100 and 50 mu M, with 14 exhibiting an IC50 of less than 10 mu M. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis of an NDPK Phosphocarrier Domain Peptide Containing a Novel Triazolylalanine Analogue of Phosphohistidine Using Click Chemistry
作者:Sung Hyun Yang、Dong Jun Lee、Margaret A. Brimble
DOI:10.1021/ol202333u
日期:2011.10.21
Click phosphorylation of a propargylated unprotected peptide and phosphoryl azide using chaotrope-assisted Cu(I)-catalyzed 1,3-dipolar cycloaddition enabled a high-yielding and rapid synthesis of a nucleoside diphosphate kinase (NDPK) phosphocarrier domain. The synthesis showcases a valuable synthetic platform for the synthesis of biologically relevant phosphopeptide analogues.