摘要:
Silica nanocarriers hybridized with superparamagnetic iron oxide nanoparticles (“SPIONs”) and curcumin through equilibrium or enforced adsorption technique. Methods for dual delivery of SPIONs and curcumin to a target for diagnosis or therapy, for example, for SPION-based magnetic resonance imaging or for targeted delivery of curcumin to a cell or tissue. The technique can be extend to co-precipitation of mixed metal oxide involving Ni, Mn, Co and Cu oxide. The calcination temperature can be varied from 500-900° C. The nanocombination is functionalized with chitosan, polyacrylic acid, PLGA or another agent to increase its biocompatibility in vivo.
摘要:
Silica nanocarriers hybridized with superparamagnetic iron oxide nanoparticles (“SPIONs”) and curcumin through equilibrium or enforced adsorption technique. Methods for dual delivery of SPIONs and curcumin to a target for diagnosis or therapy, for example, for SPION-based magnetic resonance imaging or for targeted delivery of curcumin to a cell or tissue. The technique can be extend to co-precipitation of mixed metal oxide involving Ni, Mn, Co and Cu oxide. The calcination temperature can be varied from 500-900° C. The nanocombination is functionalized with chitosan, polyacrylic acid, PLGA or another agent to increase its biocompatibility in vivo.
摘要:
A rare earth-based nanoparticle magnetic resonance contrast agent and a preparation method thereof are provided. The rare earth-based nanoparticle magnetic resonance contrast agent is rare earth-based inorganic nanoparticles having the surfaces coated with hydrophilic ligands. The rare earth-based nanoparticles are first obtained by a high-temperature oil phase reaction, and then the surfaces thereof are coated with hydrophilic molecules to obtain the rare earth-based nanoparticle magnetic resonance contrast agent. Compared with the existing clinical contrast agent, the magnetic resonance contrast agent of the present invention has a greatly improved relaxivity, a good imaging effect, a low required injection dose, and long in vivo residence time. In addition, the rigid structure of the inorganic nanoparticles can effectively reduce the leakage possibility of gadolinium ions.
摘要:
A synthetic calcium phosphate-based biomedical material comprising gadolinium. The material may comprises a compound having the general chemical formula: Ca10−yGdy(PO4)6−x(SiO4)x(OH)2−c+y where 0
摘要:
A synthetic calcium phosphate-based biomedical material comprising gadolinium. The material may comprise a compound having the general chemical formula: Ca10−yGdy(PO4)6−x(SiO4)x(OH)2−x+y where 0
摘要:
The methods of the invention exploit the capabilities of manganese-enhanced MRI (MEMRI), which provides viability-specific biological contrast agent through the intracellular accumulation of Mn2+. A typical contrast agent utilizes non-chelated Mn2+ in combination with Ca2+, e.g. as calcium gluconate. Active intracellular accumulation of Mn2+ generates high signal from the viable cells in normal tissue, or normal regions of heterogeneous tissue; no signal from the non-viable cells; and intermediate signal from viable but injured cells. The intermediate signal defines a “gray zone” of potentially salvageable cells.
摘要:
A method for identifying a molecule that binds an irradiated tumor in a subject and molecules identified thereby. In some embodiments, the method includes the steps of (a) exposing a tumor to ionizing radiation; (b) administering to a subject a library of diverse molecules; and (c) isolating from the tumor one or more molecules of the library of diverse molecules, whereby a molecule that binds an irradiated tumor is identified. Also provided are targeting ligands that bind an irradiated tumor and therapeutic and diagnostic methods that employ the disclosed targeting ligands.
摘要:
In certain aspects, the present invention is directed to a device selected from (a) an operating microscope with an attached or attachable magnet and (b) a magnet that is configured for attachment to an operating microscope. In either case, the magnet is configured to allow a patient's tissue to be viewed through the operating microscope while at the same time permitting the creation of a magnetic field of sufficient magnitude and direction to move a magnetic therapeutic and/or diagnostic agent lying within the tissue to a preferred location in the tissue.
摘要:
An agent for imaging of a biological system or delivering drugs to a biological system including one or more nanoparticles formed of at least one gadolinium coordination polymer.