Composite materials made of a citrate, a calcium carbonate-containing material and an association moiety which is associated with the citrate and the calcium carbonate-containing material are provided. The composite materials are typically particulate materials (e.g., powdery materials). Compositions and articles-of-manufacturing containing and/or configured for applying the composite materials are also provided, as well as their use in inducing blood coagulation and arresting hemorrhage, including internal and/or massive hemorrhage.

A method for controlling generation of biologically desirable voids in a composition placed in proximity to bone or other tissue in a patient by selecting at least one water-soluble inorganic material having a desired particle size and solubility, and mixing the water-soluble inorganic material with at least one poorly-water-soluble or biodegradable matrix material. The matrix material, after it is mixed with the water-soluble inorganic material, is placed into the patient in proximity to tissue so that the water-soluble inorganic material dissolves at a predetermined rate to generate biologically desirable voids in the matrix material into which bone or other tissue can then grow.

The present disclosure describes drug-loaded nanoparticles for hepatic artery chemoembolization, wherein the drug-loaded nanoparticles are novel doxorubicin-loaded metal organic framework (MOF) nanoparticles and UiO-66/Bi.sub.2S.sub.3 nanocomposites. The preparation method of the drug-loaded nanoparticles includes the following steps: mixing UiO-66/Bi.sub.2S.sub.3 with DOX solution, stirring the resultant mixture overnight at 25° C.±5° C. in a dark environment, centrifuging the mixture, and washing with deionized water to obtain UiO-66/UiO-66/Bi.sub.2S.sub.3@DOX composite nanomaterials. The present disclosure adopts a “one-pot reaction” with a simple preparation process. The pH-reactive release performance of the MOF material indicates that the tumor tissue of hepatocellular carcinoma (HCC) has a lower pH than normal tissue, and the acidic tumor environment can induce the release of doxorubicin from the nanomaterials. The MOF material has strong photothermal conversion ability, allowing HCC to be treated by photothermal treatment in combination with TACE.

This document provides materials and methods for permanent arterial embolization and/or enhanced vascular healing. For example, materials and methods for using bioactive tissue derived nanocomposite hydrogels to enhance vascular healing are provided.

Injectable, ready-to-use two-paste cement-forming compositions comprise a first paste and a second paste. The first paste comprises a non-aqueous oil-based suspension of monocalcium phosphate monohydrate (MCPM) powder, at least one surfactant effective to improve compatibility of the oil and the MCPM, and an organic acid, with an oil to MCMP powder weight ratio of about 0.2 to about 0.5. The second paste comprises an aqueous suspension of β-tricalcium phosphate (β-TCP) powder and a gel-forming polymer, with a water to β-TCP powder weight ratio of about 0.3 to about 0.5. The molar ratio of β-TCP powder to MCPM powder is greater than 1. An article of manufacture comprises a first compartment in which the first paste is contained, and a second compartment in which the second paste is contained. The compositions are useful for bone repair or replacement.

This disclosure relates to methods and materials for embolization of one or more blood vessels (e.g., one or more arteries). For example, biomaterial compositions (e.g., BEM compositions containing PRF and one or more nanoclay materials) for embolization of one or more blood vessels (e.g., one or more arteries) within a mammal (e.g., a human) are provided.

Provided is a hemostatic composition comprising trypsin and zeolite, wherein pore channels of the zeolite are micropores, the zeolite contains divalent metal cations, and the mass ratio of the trypsin to the zeolite is 1:200-4:10. In the present invention, the trypsin specifically binds to the zeolite, allowing the trypsin to maintain a certain conformation on the surface of the zeolite and to obtain a higher procoagulant activity, thereby obtaining a hemostatic composition with an excellent blood coagulation effect. The hemostatic composition of the present invention has the advantages of a simple preparation method, low cost and convenient use, and can be widely used in hemostasis during trauma and operations, especially in emergent hemostasis in hemophilia patients.

Certain small molecule amino acid phosphate compounds such as phosphoserine and certain multivalent metal compounds such as calcium phosphate containing cements have been found to have improved properties and form an interpenetrating network in the presence of a polymer that contains either an electronegative carbonyl oxygen atom of the ester group or an electronegative nitrogen atom of the amine group as the bonding sites of the polymer surfaces to the available multivalent metal ions.

A method for controlling generation of biologically desirable voids in a composition placed in proximity to bone or other tissue in a patient by selecting at least one water-soluble inorganic material having a desired particle size and solubility, and mixing the water-soluble inorganic material with at least one poorly-water-soluble or biodegradable matrix material. The matrix material, after it is mixed with the water-soluble inorganic material, is placed into the patient in proximity to tissue so that the water-soluble inorganic material dissolves at a predetermined rate to generate biologically desirable voids in the matrix material into which bone or other tissue can then grow.

A method for controlling generation of biologically desirable voids in a composition placed in proximity to bone or other tissue in a patient by selecting at least one water-soluble inorganic material having a desired particle size and solubility, and mixing the water-soluble inorganic material with at least one poorly-water-soluble or biodegradable matrix material. The matrix material, after it is mixed with the water-soluble inorganic material, is placed into the patient in proximity to tissue so that the water-soluble inorganic material dissolves at a predetermined rate to generate biologically desirable voids in the matrix material into which bone or other tissue can then grow.