Preparation and MRI performance of a composite contrast agent based on palygorskite pores and channels binding effect to prolong the residence time of water molecules on gadolinium ions

Abstract

A composite MRI contrast agent with longitudinal and transverse relaxation rates up to 59.56 and 340.81 mM−1 s−1 is facilely fabricated base on the pores and channels binding effect on water molecules of attapulgite.

INVESTIGATION OF COORDINATION COMPOUNDS OF GADOLINIUM (III) WITH beta-DIKETONES

“…This is due to a wide range of practical applications of oxide and coordination compounds, composite, hybrid and polymeric materials based on lanthanides [1][2][3][4]. They find application in various fields of science and technology: as emission and magnetic materials in molecular spintronics as single-molecule magnets for storing ultrahighdensity information and quantum computing (quantum information processing) [5][6][7][8][9][10] for highly anisotopic systems based on Tb and Dy [11] , as low-temperature molecular magnetic coolers, which are evaluated by the magneto-caloric effect (MCE) [12], in magnetic resonance imaging (MRI) -contrast agents that, when introduced into the body, are localized in the internal organs, increasing the contrast between normal and affected tisue [12][13][14][15][16].…”

Investigation of Coordination Compounds of Gadolinium (III) With b-Diketones

“…[1][2][3][4] They find application in various fields of science and technology: as emission and magnetic materials in molecular spintronics as single-molecule magnets for storing ultrahigh-density information and quantum computing (quantum information processing) [5][6][7][8][9][10] for highly anisotopic systems based on Tb and Dy, 11 as low-temperature mo-lecular magnetic coolers, which are evaluated by the magneto-caloric effect (MCE) [12], in magnetic resonance imaging (MRI) -contrast agents that, when introduced into the body, are localized in the internal organs, increasing the contrast between normal and affected tissue. [12][13][14][15][16] First of all, these are complex compounds of gadolinium and dysprosium, which is due to their paramagnetic properties. The main feature of the method, in addition to its sensitivity, is the absence of harmful effects on the organism.…”