The present invention relates to a method of preparation of formulations of gadolinium metal complexes of the macrocyclic chelator DOTA, which further comprise a small excess of free DOTA. The method uses controlled conditions such that excess gadolinium is present as a precipitate of gadolinium oxide, with filtration to remove the excess, prior to the addition of a defined excess of DOTA chelator. Also provided is a method of preparation of MRI contrast agents based on Gd-DOTA.

Provided are iron oxide nanocapsules for an MRI contrast agent having high contrast, in which a plurality of iron oxide nanoparticles having a hydrophobic ligand attached thereto are encapsulated in an encapsulation material including a biodegradable polymer and a surfactant, and which satisfy Relations 1, 2, 3, 4 and 5 below. Also a method of manufacturing the iron oxide nanocapsules is provided.
5≦100*D.sub.μ(IO)/C.sub.ω(IO)  [Relation 1]
2.5≦100*D.sub.μ(Cap)/C.sub.ω(Cap)  [Relation 2]
0.5 wt %≦F(IO)≦50 wt %  [Relation 3]
1 nm≦D.sub.μ(IO)≦25 nm  [Relation 4]
50 nm≦D.sub.μ(Cap)≦200 nm  [Relation 5]

UV-Laser-synthesized, fluorescent, spherical and magnetic nanoparticles are loaded Sophorolipid mesostructures useful for bio-imaging and therapeutic applications.

Disclosed herein are compositions comprising a targeted corrole nanoparticle; and an acceptable excipient. Also disclosed are compositions comprising a targeted corrole nanoparticle; and an acceptable carrier. Further, disclosed herein are methods of imaging a condition in a subject, comprising providing a composition comprising a targeted corrole nanoparticle; administering an effective amount of the targeted corrole nanoparticle to the subject; and imaging the condition in the subject. In addition, disclosed herein are methods of treating cancer in a subject, comprising providing a composition comprising a targeted corrole nanoparticle; and administering a therapeutically effective dosage of the targeted corrole nanoparticle to the subject.

A method for preparing a sample for dynamic nuclear polarization which comprises submitting a solid substrate to a milling process in the presence of a polarizing agent at a temperature lower than the glass-transition temperature (Tg) of said substrate. Preferably said substrate may be in crystalline form.

A method for preparing a sample for dynamic nuclear polarization which comprises submitting a solid substrate to a milling process in the presence of a polarizing agent at a temperature lower than the glass-transition temperature (Tg) of said substrate. Preferably said substrate may be in crystalline form.

The disclosure is directed to a spherical particle comprising lanthanide hydroxide, a method of preparing the particle, the particle for use in medical applications, a suspension, a composition, a method of obtaining a scanning image, and the particle for use in the treatment of a subject.

The present disclosure relates to a DNA construct, and a strain into which a recombinant vector comprising the DNA construct has been introduced. The DNA construct according to the present disclosure allows the expression levels of genes, operably linked downstream of first and second promoters, in a host strain or cell, to be balanced, so that cancer diagnosis and treatment may be performed simultaneously. In addition, the DNA construct of the present disclosure completely does not allow the anticancer protein and the reporter protein to be expressed at all in the absence of doxycycline, and thus it allows the anticancer protein to be expressed at an appropriate dose for cancer treatment by controlling whether or not treatment with doxycycline is performed, and at the same time, enables the size of the cancer to be monitored in real time depending on the expression level of the reporter protein.

Lipid nanoparticles expressing metal ions and methods for using the compositions for magnetic resonance imaging.

Disclosed herein are nanoconstructs comprising a nanoparticle, coated with additional agents such as cationic polymers, stabilizers, targeting molecules, labels, oligonucleotides and small molecules. These constructs may be used to deliver compounds to treat solid tumors and to diagnose cancer and other diseases. Further disclosed are methods of making such compounds and use of such compounds to treat or diagnose human disease.