Approaching the Kinetic Inertness of Macrocyclic Gadolinium(III)-Based MRI Contrast Agents with Highly Rigid Open-Chain Derivatives
نویسندگان
چکیده
منابع مشابه
Magnetoliposomes open up new horizons as MRI contrast agents
Introduction High resolution MRI has a low sensitivity for the visualization of low cell numbers in vivo. This is circumvent by the internalization of high concentrations of superparamagnetic iron oxide particles resulting in potential cytotoxic effects or affecting cell biology like differentiation, formation of ROS etc. [1]. In addition, the ability to monitor iron oxide labelled cells in viv...
متن کاملSwitching of MRI Contrast Agents with Ultrasound
Purpose The utility of (super)paramagnetic agents to enhance contrast in MRI has been for some time demonstrated in human studies. The contrast provided by these agents arises from their ability to achieve reductions in T1 and T2*. Another approach to designing contrast agents is to consider the use of ultrasound (US). We have developed a method involving the application of US in MRI in the pre...
متن کاملBiocompatible Polyhydroxyethylaspartamide-based Micelles with Gadolinium for MRI Contrast Agents
Biocompatible poly-[N-(2-hydroxyethyl)-d,l-aspartamide]-methoxypoly(ethyleneglycol)-hexadecylamine (PHEA-mPEG-C(16)) conjugated with 1,4,7,10-tetraazacyclododecan-1,4,7,10-tetraacetic acid-gadolinium (DOTA-Gd) via ethylenediamine (ED) was synthesized as a magnetic resonance imaging (MRI) contrast agent. Amphiphilic PHEA-mPEG-C(16)-ED-DOTA-Gd forms micelle in aqueous solution. All the synthesize...
متن کاملHighly relaxing gadolinium based MRI contrast agents responsive to Mg2+ sensing.
A Gd complex based on a polyphosphonated pyridyl ligand shows a very high stability in aqueous solution (log K(EuL) = 25.7), a high relaxivity (8.5 mM(-1) s(-1) at 25 °C and 20 MHz) and a marked and selective relaxivity enhancement (37%) in the presence of Mg(2+), opening interesting perspectives for the design of cation responsive contrast agents.
متن کاملThermodynamic stability, kinetic inertness and relaxometric properties of monoamide derivatives of lanthanide(III) DOTA complexes.
A complete thermodynamic and kinetic solution study on lanthanide(III) complexes with monoacetamide (DOTAMA, L1) and monopropionamide (DOTAMAP, L2) derivatives of DOTA (DOTA = 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) was undertaken with the aim to elucidate their stability and inertness in aqueous media. The stability constants of GdL1 and GdL2 are comparable, whereas a more ma...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemistry - A European Journal
سال: 2016
ISSN: 0947-6539
DOI: 10.1002/chem.201503836