Abstract: A method includes at least partially submerging a substrate in a colloidal mixture of nanocrystals and a first solvent. The nanocrystals have first ligands coupled thereto. The method also includes applying an electric field to the colloidal mixture to form a solvated nanocrystal film and removing the solvated nanocrystal film from the first solvent. The method further includes applying a second solvent to the solvated nanocrystal film for ligand exchange. The second solvent comprises second ligands. A nanocrystal film product formed by one-step ligand exchange includes at least one dimension greater than 100 nm and ordered nanocrystals characterized as having a domain size of greater than 100 nm.

Abstract: The invention provides a homogeneous composition comprising a hemostatically effective amount of a charged oxide, wherein the composition has an isoelectric point, as measured in calcium chloride, below 7.3 or above 7.4. Typically, the charged oxide is selected from the group consisting of silaceous oxides, titanium oxides, aluminum oxides, calcium oxides, zinc oxides, nickel oxides and iron oxides. In some embodiments, the composition further comprises a second oxide selected from the group consisting of calcium oxide, sodium oxide, magnesium oxide, zinc oxide, phosphorus oxide and alumina. In a typical embodiment of the invention, the charged oxide is silaceous oxide, the second oxide comprises calcium oxide and the ratio, by molar ratio, of silaceous oxide to calcium oxide is 0.25 to 15. Optionally, the composition further comprises phosphorous oxide. Also described are methods of making and using such compositions.

Abstract: Hemostatic compositions comprising a wet layered clay (e.g., wet kaolin) and, optionally, a zeolite, as well as devices and methods of use to promote blood clotting, are provided.

Abstract: Hemostatic compositions comprising a wet layered clay (e.g., wet kaolin) and, optionally, a zeolite, as well as devices and methods of use to promote blood clotting, are provided.

Abstract: Hemostatic compositions comprising a wet layered clay (e.g., wet kaolin) and, optionally, a zeolite, as well as devices and methods of use to promote blood clotting, are provided.

Abstract: The present invention relates to hemostatic compositions comprising a mesocellular oxide foam and, optionally, a biologically active agent such as a procoagulant, as well as devices and methods of use to promote blood clotting.

Abstract: The present invention relates to hemostatic compositions comprising a mesocellular oxide foam and, optionally, a biologically active agent such as a procoagulant, as well as devices and methods of use to promote blood clotting.

Abstract: The present invention relates to hemostatic compositions comprising a mesocellular oxide foam and, optionally, a biologically active agent such as a procoagulant, as well as devices and methods of use to promote blood clotting.

Abstract: The invention provides a homogeneous composition comprising a hemostatically effective amount of a charged oxide, wherein the composition has an isoelectric point, as measured in calcium chloride, below 7.3 or above 7.4. Typically, the charged oxide is selected from the group consisting of silaceous oxides, titanium oxides, aluminum oxides, calcium oxides, zinc oxides, nickel oxides and iron oxides. In some embodiments, the composition further comprises a second oxide selected from the group consisting of calcium oxide, sodium oxide, magnesium oxide, zinc oxide, phosphorus oxide and alumina. In a typical embodiment of the invention, the charged oxide is silaceous oxide, the second oxide comprises calcium oxide and the ratio, by molar ratio, of silaceous oxide to calcium oxide is 0.25 to 15. Optionally, the composition further comprises phosphorous oxide. Also described are methods of making and using such compositions.

Abstract: The present invention relates to hemostatic compositions comprising a mesocellular oxide foam and, optionally, a biologically active agent such as a procoagulant, as well as devices and methods of use to promote blood clotting.

Abstract: Hemostatic compositions comprising a wet layered clay (e.g., wet kaolin) and, optionally, a zeolite, as well as devices and methods of use to promote blood clotting, are provided.