Synthesis and Antimicrobial Properties of a Ciprofloxacin and PAMAM-dendrimer Conjugate
作者:Søren Wedel Svenningsen、Rikki Franklin Frederiksen、Claire Counil、Mario Ficker、Jørgen J. Leisner、Jørn Bolstad Christensen
DOI:10.3390/molecules25061389
日期:——
antibiotics are an increasing problem. Multivalent antibiotics could be a solution. In the present study, a covalent conjugate between Ciprofloxacin and a G0-PAMAM dendrimer has been synthesized and tested against clinically relevant Gram-positive and Gram-negative bacteria. The conjugate has antimicrobial activity and there is a positive dendritic effect compared to Ciprofloxacin itself.
The present invention provides crosslinked amine polymers effective for binding and removing bile salts from the gastrointestinal tract. These bile acid binding polymers or pharmaceutical compositions thereof can be administered to subjects to treat various conditions, including hypercholesteremia, diabetes, pruritus, irritable bowel syndrome-diarrhea (IBS-D), bile acid malabsorption, and the like.
Improved large-scale synthesis and characterization of small and medium generation PAMAM dendrimers
作者:Mario Ficker、Valentina Paolucci、Jørn B. Christensen
DOI:10.1139/cjc-2017-0108
日期:2017.9
however, most dendrimer formulations have failed to move from laboratory science to upscaled products for preclinical testing or GMP production. This publications reports on an improvedlarge-scale PAMAM dendrimer synthesis that is suitable to manufacture large amounts of highly pure and monodisperse dendrimers of generations G0–G5. Furthermore, an extended analytical guideline how to characterize
Novel Dendritic PNP Chromium Complexes: Synthesis, Characterization, and Performance on Ethylene Oligomerization
作者:Jun Wang、Rui Gao、Na Zhang、Xiangkun Tan、Libo Wang、Lili Ma、Weiguang Shi
DOI:10.1002/hlca.201700162
日期:2017.12
reaching up to 81%. The chromium complex (C1) activated with diethylaluminium chloride (Et2AlCl) has higher catalytic activity than the chromium complex C1 activated with MAO, although the chromium complex (C1) activated with Et2AlCl had lower selectivity for C6 and C8 oligomer. The effects of solvent and reaction parameters on ethylene oligomerization are also studied using the chromium complex C1 as pre‐catalyst