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Excellent Correlation Between Drug Release and Portal Size in Metalla-Cage Drug-Delivery Systems

Excellent Correlation Between Drug Release and Portal Size in Metalla-Cage Drug-Delivery Systems

Nicolas P E Barry, Olivier Zava, Paul J Dyson, Bruno Therrien

Chemistry. 2011 Aug 22;17(35):9669-77.

PMID: 21735491

Abstract:

A series of large cationic hexanuclear metalla-prisms, [Ru(6)(p-iPrC(6)H(4)Me)(6)(tpt)(2)(donq)(3)](6+), [Ru(6)(p-iPrC(6)H(4)Me)(6)(tpt)(2)(doaq)(3)](6+) and [Ru(6)(p-iPrC(6)H(4)Me)(6)(tpt)(2)(dotq)(3)](6+), composed of p-cymene-ruthenium building blocks bridged by OO∩OO ligands (donq=5,8-dioxido-1,4-naphthoquinonato; doaq=5,8-dioxido-1,4-anthraquinonato, dotq=6,11-dioxido-5,12-naphthacenedionato) and connected by two 2,4,6-tripyridin-4-yl-1,3,5-triazine (tpt) panels, which encapsulate the guest molecules 1-(4,6-dichloro-1,3,5-triazin-2-yl)pyrene and Pd(acac)(2), have been prepared. The host-guest properties of these water-soluble delivery systems were studied in solution by NMR and fluorescence spectroscopy, providing the stability constants (K) for these host-guest systems. Moreover, the ability of the hosts to deliver the guests into cancer cells was evaluated and the uptake mechanism studied; the rate of release of the guest molecule was found to depend on the portal size of the host.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP3224360	1-(4,6-Dichloro-1,3,5-triazin-2-yl)pyrene		3224-36-0	Price

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