Abstract: The present invention discloses novel calibrants containing between 1 and 5 iodine atoms and methods of making them using linear polymers, hyperbranched polymers, and biological polymers (including but not limited to proteins and peptides.) Methods of using the calibrants are also disclosed, such as mass spectrometry. The novel calibrants disclosed herein have a more cost- and time-efficient synthesis than other calibrants.

Abstract: A magnetic polymer adsorption material, preparation method and use thereof, which relate to the field of magnetic polymer materials. The preparation method comprises: (1) preparing magnetic nanoparticles; (2) dissolving the magnetic nanoparticles in a pore-forming agent, adding N-vinylpyrrolidone, divinylbenzene and an initiator respectively, and mixing uniformly; (3) adding an emulsifier and a dispersant into an aqueous solution; adding a part of the oil phase solution prepared in step (2) at the temperature below 60° C., and adding the rest of the oil phase solution when the temperature rises to 60° C. or above, reacting with stirring, precipitating and filtering the reacted solution, washing and drying the precipitate, and finally obtaining the magnetic polymer adsorption material. The material has the particle size of 2-100 ?m, the magnetization of 5-19.

Abstract: Bioactive glass compositions, composites of the bioactive glass compositions with polymers, and 3D printable filaments made from the same, along with methods of making and using the same, are described. In some embodiments, the compositions, composites, and filaments have antibacterial activity.

Abstract: The present disclosure provides metal-containing (MC) semiconducting (SC) Pdots (MC-SC-Pdots) with beneficial functionalities in both cellular imaging and manipulation, among other applications. The Pdots comprise at least one nanoparticle comprising at least one metal, and a semiconducting polymer associated with the nanoparticle.

Abstract: The invention relates to the use of biocompatible superparamagnetic nanoparticles comprising an inorganic core and a coating including an electrically charged polymer, and having low tissue and vascular adhesion, for use as contrast agents in magnetic resonance imaging (MRI). The aforementioned nanoparticles have novel pharmacokinetic and relaxability T2* properties, with high potential for use in in vivo tissue imaging and tumour perfusion strategies based on parameter T2*.

Abstract: Compositions and methods for the radiological and immunotherapeutic treatment of cancer are provided. Metallic nanoparticles conjugated with an immunoadjuvant are dispersed within a biodegradable polymer matrix that can be implanted in a patient and released gradually. The implant may be configured as, or be a component of, brachytherapy spacers and applicators, or radiotherapy fiducial markers. The composition may be combined with marginless radiotherapy, allowing for lower doses of radiation and enhancing the immune response against cancer, including at non-irradiated sites.

Abstract: A medical nanoparticle includes a core, an outer lipid layer, an inner lipid layer, a photosensitizer, and a nucleic acid. The core includes a bio-degradable ionic precipitate (BIP). The inner lipid layer is between the core and the outer lipid layer. The photosensitizer is between the inner lipid layer and the outer lipid layer, and the nucleic acid is at the surface of the core.

Abstract: The invention relates to an antitumor composition based on hydrophobized hyaluronan and inorganic nanoparticles stabilized by oleic acid. The hydrophobized hyaluronan in the form of an acylated hyaluronan serves in the composition as a carrier of inorganic nanoparticles. Out of the group of inorganic nanoparticles, the composition may comprise superparamagnetic nanoparticles, nanoparticles of ZnO and moreover, upconversion nanoparticles. Said composition is selectively cytotoxic with respect to both suspension and adherent tumor cell lines, especially with respect to tumor cell lines of colorectum carcinoma and adenocarcinoma, lung carcinoma, hepatocellular carcinoma and breast adenocarcinoma. The highest cytotoxic effects were observed in case of the composition based on an oleyl derivative of hyaluronan with SPIONs. The composition of acylated hyaluronan with SPIONs may also be advantageously used for an in vivo detection of accumulation of the composition in the body, preferably in a tumor or in liver.

Abstract: Techniques regarding a star polymer with light-activated enhanced antimicrobial functionality are provided. For example, a polymer is provided that can comprise a plurality of non-degradable copolymer arms comprising respective first ends and respective second ends. The respective first ends can be crosslinked to form a vinyl polymer core and the respective second ends can have antimicrobial functionality. Further, the polymer can comprise a singlet oxygen generator loaded within the vinyl polymer core. The singlet oxygen generator can generate a singlet oxygen species in response to light.

Abstract: Provided is a nanoparticle-vitreous body-based protein complex, and more particularly, to a composition for inhibiting angiogenesis which includes the complex as an active ingredient, and a composition for preventing or treating an angiogenesis-related disease or a retinal disease. When the nanoparticle-vitreous body-based protein complex according to the subject matter is locally injected into the vitreous body, the complex exhibits significantly excellent binding strength with a vascular endothelial growth factor and thus can inhibit angiogenesis, thus being easily used to prepare a therapeutic agent for preventing, alleviating, or treating retinal and choroidal angiogenesis-related diseases.

Abstract: An example method for mapping tissue magnetic susceptibility includes acquiring magnetic resonance (MR) data, where the MR data correspond to a subject, determining a magnetic field based on the MR data, determining a relationship between the magnetic field at a given location to the magnetic susceptibility at that location, and performing a convolution operation on the relationship between the magnetic field at the given location to the magnetic susceptibility at that location to obtain a noise property. The method also includes estimating a magnetic susceptibility distribution of the subject based, at least in part, on the noise property, and generating one or more images of the subject based on the estimated susceptibility distribution of the subject.

Abstract: The present invention relates to paramagnetic solid lipid nanoparticles (pSLNs) comprising an amphiphilic paramagnetic metal chelating moiety selected from: a diazepine derivative of Formula I and a tetraazocyclododecane derivative of Formula (II): being said chelating moiety complexed to a paramagnetic metal ion selected from the group consisting of: Gd(III), Mn(II), Cr(III), Cu(II), Fe(III), Pr(III), Nd(III), Sm(III), Tb(III), Yb(III), Dy(III), Ho(III) and Er(III), or salts thereof. The invention further relates to the process for preparation of said solid lipid nanoparticles comprising amphiphilic complexes of paramagnetic metals (pSLNs) and to the use of pSLNs as MRI contrast agents in the diagnostic field.

Abstract: A preparation method for a magnetic composite for treating and diagnosing cancer. The method may include a step of pyrolyzing a precursor of a magnetic nanoparticle in the presence of a conjugated polymer. The preparation method for a magnetic composite can produce a magnetic composite economically and efficiently because a magnetic composite comprising a magnetic nanoparticle coated with a conjugated polymer can be prepared by a single process.

Abstract: Described herein are methods of lowering the endotoxin content from a polyanionic polymer conjugate. In particular, methods of reducing the endotoxin content from a polyanionic polymer conjugate that can be useful for a variety of drug delivery applications are described herein.

Abstract: The present invention provides compositions and methods for the delivery of antivirals to a cell or subject.

Abstract: The present invention relates to a method for preparing uniform metal oxide nanoparticles. According to the preparation method of the present invention, it is possible to maintain the temperature and pressure inside the reactor in a stable and constant manner by removing water generated in the reaction step for forming metal oxide nanoparticles. Thus, the uniformity of nanoparticles formed is increased, and the reproducibility between batches can be increased even in a repeated process and and a large-scale reaction. Therefore, the preparation method of the present invention can be used to synthesize uniform nanoparticles reproducibly in large quantities.

Abstract: The present invention provides a composition comprising an amphiphile and an active ingredient whose solubility in water at 20° C. is not more than 10 g/L, wherein the amphiphile comprises a dendritic polyurea which is joined to at least one linear or comb-type polymer, and the joining is effected via a difunctional linker, if the repeat units of the linear polymer are composed of polymerized alkylene oxide. The invention also relates to an amphiphile comprising a dendritic polyurea and a process for preparing the amphiphile.

Abstract: In accordance with the present disclosure there are provided iron oxide nanoparticles for use in the treatment of non-infectious inflammatory disorders. Also provided by the present disclosure is a method of treatment of non-infectious inflammatory disorders making use of such particles, pharmaceutical compositions and kits comprising such particles.

Abstract: The compositions and methods of the disclosure particularly target the divalent metal transporter expressed on olfactory nerve terminals to transport divalent cation-coated or cation-containing nanoparticles to all regions of brain. It has been found that such divalent cation-containing nanoparticles, including those nanoparticles comprising manganese have affinity for the metal transport receptor proteins. Although this receptor has particular affinity for manganese, it is contemplated that other divalent ions, including magnesium, calcium, and the like may also be bound to such receptors leading to transport of the nanoparticles into the intracellular cytoplasm. Nanoparticles have been developed, therefore, as vehicles for parenteral delivery of genes, proteins and drugs.

Abstract: A method for producing triblock copolymer-coated metallic nanoparticle seeds which increases the size and shape homogeneity of the triblock copolymer-coated metallic nanoparticle seeds. A quantity of triblock copolymer-coated metallic nanoparticle seeds. A method for producing triblock copolymer-coated metallic nanoparticles which increases the size and shape homogeneity of the triblock copolymer-coated metallic nanoparticles. A quantity of triblock copolymer-coated metallic nanoparticles. A method for producing modified metallic nanoparticles which increases the size and shape homogeneity of the modified metallic nanoparticles. A quantity of modified metallic nanoparticles.

Abstract: An iron oxide particle constituting a Resovist (trademark) absorbs a small quantity of light in a near infrared region and emits a weak photoacoustic signal. According to a particle having a catechol-like compound and iron atoms, the particle having a ratio of the number of moles of the catechol-like compound to the number of moles of the iron atoms of 270/10,000 or more, light absorption in the near infrared region increases and a strong photoacoustic signal can be transmitted.

Abstract: A medical imaging system (900, 1000, 1100, 1200) for acquiring medical image data (930), the medical imaging system comprising: a tissue treating system (910, 1080, 1180, 1190, 1280, 1290) for treating a target volume (908); a computer system (918) comprising a processor (922), wherein the computer system is adapted for controlling the medical imaging system; and a memory (928) containing machine readable instructions (954, 956, 958, 962, 964, 966, 968, 970, 972, 974). Execution of the instructions cause the processor to: acquire (100, 200, 308) medical image data; reconstruct (102, 202, 310) a medical image (932) using the medical image data; receive (104, 204, 312) an image segmentation seed (600, 934) derived from a treatment plan (936), and identify (106, 210, 314) a treated volume (400, 700, 800) in the medical image by segmenting the medical image in accordance with the image segmentation seed.

Abstract: Disclosed is a liver tumor-targeting ultrasound contrast agent. The ultrasound contrast agent includes a gas-generating core and a hyaluronic acid shell. The ultrasound contrast agent can be specifically delivered to liver cells. This specific delivery enables easy differentiation between normal liver cells and liver tumor cells by ultrasound imaging. In addition, the ultrasound contrast agent is highly stable in aqueous condition and causes no cytotoxicity. Also disclosed is a method for preparing the ultrasound contrast agent.

Abstract: The present invention relates to a nano-composite containing anionic and cationic polymers and a method for preparing thereof, and more particularly to a poly-gamma-glutamic acid (?-PGA)/chitosan/manganese iron oxide nanoparticle composite prepared by encapsulating iron oxide-based nanoparticles in a ?-PGA/chitosan polymer composite using the ionic self-assembly properties of poly-gamma-glutamic acid (?-PGA) and chitosan, which are biocompatible polymer materials, and to a method for preparing thereof. The present invention provides a magnetic resonance imaging nano-contrast agent based on a nanoparticle composite including iron oxide-based nanoparticles encapsulated in a self-assembled composite of anionic poly-gamma-glutamic acid (?PGA) and cationic chitosan.

Abstract: Method and compositions are provided that relate to superparamagnetic nanoparticles, including IONP with small diameter and high transverse relaxivity, that are stable in an aqueous environment. The nanoparticle surface coating is functionalized, while minimizing its thickness, to facilitate packaging within biological constructs.

Abstract: The present invention provides compositions and methods for the delivery of therapeutics to a cell or subject.

Abstract: Fasteners, such as bolts, nuts and screws, rivets, pins, and retaining rings, made of a highly kinked rigid-rod polyarylene exhibiting outstanding characteristics, notably a high torque and a high tensile elongation, a measure of practical toughness.

Abstract: Disclosed are a cell-targeted nano-material and biomedical uses thereof. The magnetic nano-material can bind with specificity to iron protein receptors having high expression on the surface of tissue cells, and can enter the cells. The present material can bind with specificity to a broad spectrum of tissue cells having a high expression of iron protein receptors, and can enable highly efficient cell targeting in animal models. The material can be used as a magnetic resonance imaging contrast and a fluorescent molecular probe for disease diagnosis, as well as a vector of medicine for disease treatment.

Abstract: Tunable nanoparticles and methods of use thereof are provided. In accordance with the instant invention, tunable nanoparticles comprising a metal nanoparticle core (e.g., a paramagnetic particle (e.g., USPIO) or a quantum dot) and a polymer linked to a metal binding moiety are provided. The polymer of the nanoparticle is bound to the metal nanoparticle core by the metal binding moiety and coats the metal nanoparticle core. In a particular embodiment, the metal binding moiety comprises bisphosphonate, pyrophosphate, or a derivative thereof. In a particular embodiment, the polymer is a hydrophilic polymer, an amphiphilic block copolymer or an ionic block copolymer.

Abstract: The present invention relates to iron oxide nanocomposite, magnetic resonance imaging T2 contrast medium comprising same, and method for manufacturing same. More particularly, the present invention is directed to An MRI (magnetic resonance imaging) T2 contrast agent, comprising an iron oxide nanocomposite which includes an iron oxide nanoparticle, wherein said iron oxide nanoparticle is encapsulated with a surfactant and said surfactant is encapsulated with polyethylene glycol-phospholipid and method for preparing the same.

Abstract: The invention relates to compositions of DOTA derivative compounds, lanthanoid-DOTA derivative molecular complex, and lanthanoid-complex encapsulated solid lipid particles or capsules, and methods of making and using the compositions. The solid lipid particles or capsules contain micelle cores stabilized by a hyperbranched polymer shell based from a crosslinked DOTA derivative compound or crosslinked lanthanoid-DOTA derivative complex. These solid lipid particles or capsules can be used in various applications, such as contrast agents or drug delivery vehicles.

Abstract: The present invention provides methods, compositions, systems, and kits comprising core-satellite nanocomposites useful for photothermal and/or MRI applications (e.g., tumor treatment and/or imaging). In certain embodiments, the core-satellite nanocomposites comprise: i) a core nanoparticle complex comprising a biocompatible coating surrounding a nanoparticle core, and ii) at least one satellite component attached to, or absorbed to, the biocompatible coating. In some embodiments, the nanoparticle core and satellite component are composed of near-infrared photothermal agent material and/or MRI contrast agent material. In further embodiments, the satellite component is additionally or alternatively composed of near-infrared optical dye material.

Abstract: The invention relates to a novel use of ultrafine nanoparticles, of use as a diagnostic, therapeutic or theranostic agent, characterized by their mode of administration via the airways. The invention is also directed toward the applications which follow from this novel mode of administration, in particular for imaging the lungs, and the diagnosis or prognosis of pathological pulmonary conditions. In the therapeutic field, the applications envisioned are those of radiosensitizing or radioactive agents for radiotherapy (and optionally curietherapy), or for neutron therapy, or of agents for PDT (photodynamic therapy), in particular for the treatment of lung tumors.

Abstract: A nanoshell is disclosed, comprising a star polymer occlusion complex comprising i) an amphiphilic unimolecular star polymer having a crosslinked core covalently linked to 6 or more independent polymer arms, and ii) a cargo material occluded in the star polymer; and a shell comprising an inorganic material in contact with a peripheral surface of the star polymer occlusion complex.

Abstract: 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.

Abstract: A hemostatic tissue sealant sponge and a spray for acute wounds are disclosed. The sponge comprises hydrophobically modified polymers that anchor themselves within the membrane of cells in the vicinity of the wound. The seal is strong enough to substantially prevent the loss of blood inside the boundaries of the sponge, yet weak enough to substantially prevent damage to newly formed tissue upon recovery and subsequent removal of the sponge. In examples, the polymers inherently prevent microbial infections and are suitable for oxygen transfer required during normal wound metabolism. The spray comprises hydrophobically modified polymers that form solid gel networks with blood cells to create a physical clotting mechanism to prevent loss of blood. In an example, the spray further comprises at least one reagent that increases the mechanical integrity of the clot. In another example, the reagent prevents microbial infection of the wound.

Abstract: New types of nanoparticle-based dual-modality positron emission tomography/magnetic resonance imaging (PET/MRI) and positron emission tomography/computed tomography (PET/CT) tumorspecific contrast agents have been developed. The base of the new type contrast agents is biopolymer-based nanoparticle with PET, MRI and CT active ligands. The nanoparticle contains at least one polyanion and polycation, which form nanoparticles via ion-ion interaction. The self-assembled polyelectrolytes can transport gold nanoparticles as CT contrast agents, or SPION or Gd(III) ions as MRI active ligands, and are labeled using a complexing agent with gallium as PET radiopharmacon. Furthermore, these dual modality PET/MRI and PET/CT contrast agents are labeled with targeting moieties to realize the tumorspecificity.

Abstract: The present disclosure is directed generally to lanthanide nanoparticle conjugates, such as gadolinium nanoparticle conjugates, nanoparticle conjugates including polymers, conjugation to targeting agents and therapeutic agents, and their use in targeting, treating, and/or imaging disease states in a patient.

Abstract: The disclosure provides metal nanocomposites including one or more metal nanoparticles having a hydrophobic surface and at least partially enclosed by cationic and hydrophilic polymers. The metal nanocomposites are useful as among others, a contrast agent, a diagnostic composition or a pharmaceutical composition.

Abstract: Injectable compositions for the MRI detection of an analyte selected from the group consisting of reactive oxygen species, proteases and enzymes, comprising a) a matrix material based on a responsive hydrophobic polymer capable of undergoing a chemical reaction with the analyte to be detected, such reaction leading to a disruption of the polymer chain of the responsive polymer, b) a contrast agent suitable for use in magnetic resonance imaging, embedded in or encapsulated in the polymer a), c) optionally, a functionality capable of binding a marker or probe or a probe for creating a second detection signal, and d) optionally, a non-responsive polymer not undergoing a chemical reaction with the analyte under the conditions where polymer a) undergoes a reaction leading to chain breakage

Abstract: A diagnostic agent composition is provided which comprises a nanoparticle composition and a pharmaceutically acceptable carrier or excipient. The nanoparticle composition comprises a nanoparticulate metal oxide and a phosphorylated polyol, wherein the phosphorylated polyol comprises at least two phosphate groups and one or more hydrophilic groups selected from the group consisting of polyethylene ether moieties, polypropylene ether moieties, polybutylene ether moieties, and combinations of two or more of the foregoing hydrophilic moieties. The disclosure provides detailed guidance on methods of making and using such diagnostic agent compositions. The diagnostic agent compositions provided by the present invention are useful as contrast agents for medical diagnostic imaging techniques such as magnetic resonance (MR) imaging and X-ray imaging. The diagnostic agent composition may be administered to a subject via a variety of techniques, among them injection, inhalation, and ingestion.

Abstract: Provided are compositions for rapid detection of lymph nodes. The compositions include magnetic particles, such as iron oxide, and a solute present in an amount that results in a hypoosomotic solution. Methods for detecting lymph nodes also are provided.

Abstract: The invention relates to compositions of DOTA derivative compounds, lanthanoid-DOTA derivative molecular complex, and lanthanoid-complex encapsulated solid lipid particles or capsules, and methods of making and using the compositions. The solid lipid particles or capsules contain micelle cores stabilized by a hyperbranched polymer shell based from a crosslinked DOTA derivative compound or crosslinked lanthanoid-DOTA derivative complex. These solid lipid particles or capsules can be used in various applications, such as contrast agents or drug delivery vehicles.

Abstract: Iron oxide nano contrast agents for Magnetic Resonance Imaging which have superior T2 contrast effect, and also can be used as a storage or a carrier for drugs and so on, are disclosed. The iron oxide nano contrast agents can be prepared by the steps of: coating surfaces of hydrophobic FeO nanoparticles with a coating material selected from the group consisting of polyethylene glycol-phospholipid conjugate, dextran, chitosan, dimercaptosuccinic acid and mixtures thereof in an organic solvent to form hydrophilic FeO nanoparticles having hydrophilic surfaces and dispersibility in water; dispersing the hydrophilic FeO nanoparticles in water to oxidize FeO; and exposing the oxidized hydrophilic FeO nanoparticles to an acidic buffer to dissolve and remove interior unoxidized FeO portions, and thereby to form Fe3O4 nanoparticles having an interior space.

Abstract: The invention discloses an aqueous method of making polymer coated superparamagnetic nanoparticles. Nanoparticles made by the method are included in the invention.

Abstract: Provided herein are therapeutic nanoparticles having a diameter of between 10 nm to 30 nm, and containing a polymer coating, and a nucleic acid containing a sequence complementary to a sequence within a micro-RNA identified as having a role in cancer cell metastasis or anti-apoptotic activity in a cancer cell (e.g., miR-10b) or a sequence within an mRNA encoding a pro-apoptotic protein that is covalently linked to the nanoparticle. Also provided are pharmaceutical compositions containing these therapeutic nanoparticles. Also provided herein are methods of decreasing cancer cell invasion or metastasis in a subject having a cancer and methods of treating a metastatic cancer in a lymph node in a subject that require the administration of these therapeutic nanoparticles to a subject.

Abstract: A biodegradable iron oxide nanoparticle gel for hyperthermia treatment of cancer includes a polysaccharide-based carrier matrix and starch-coated iron oxide nanoparticles. The gel has sufficient deformability to integrate into a diffuse tumor site, adheres to tissue and has sufficient mechanical properties to remain in place during hyperthermia treatment. The gel releases iron oxide nanoparticles for uptake by cancerous cells at the tumor margin.

Abstract: The present invention relates to a nano-composite containing anionic and cationic polymers and a method for preparing thereof, and more particularly to a poly-gamma-glutamic acid (?-PGA)/chitosan/manganese iron oxide nanoparticle composite prepared by encapsulating iron oxide-based nanoparticles in a ?-PGA/chitosan polymer composite using the ionic self-assembly properties of poly-gamma-glutamic acid (?-PGA) and chitosan, which are biocompatible polymer materials, and to a method for preparing thereof. The present invention provides a magnetic resonance imaging nano-contrast agent based on a nanoparticle composite including iron oxide-based nanoparticles encapsulated in a self-assembled composite of anionic poly-gamma-glutamic acid (?PGA) and cationic chitosan.

Abstract: The invention relates to a magnetic resonance imaging T2 contrast medium (agent) for cell contrasting, and to a method for manufacturing the same. The magnetic resonance imaging T2 contrast agent for imaging at cellular level comprises magnetic nanoparticles exhibiting ferrimagnetism at room temperature, has a very high relaxivity, and has an effective uptake into cells. Thus, the T2 contrast agent may effectively mark various types of cells, and in vitro and in vivo magnetic resonance imaging at the single cell level may he realized.

Abstract: Disclosed are a composition including hydrophilic nanoparticles that have a monosaccharide-phosphate or a derivative thereof adhered to the surface thereof, a colloidal solution of the composition dispersed in water, and a magnetic resonance imaging contrast agent including the colloidal solution. According to the present invention, nanoparticles having biocompatibility and excellent water-dispersibility can be prepared by modifying the surface of inorganic nanoparticles. The prepared nanoparticles may be effectively used in a variety of applications including, for example, in vivo imaging applications such as an MRI contrast agent, nano-electronic convergence technologies such as a quantum dot light emitting device, biomedical applications such as hyperthermia, or the like. Moreover, compared to existing nanoparticles dispersed by a dispersion stabilizer known in the art, excellent dispersion stability and a relatively small hydrodynamic diameter may be attained.