Abstract: Nanoparticles disclosed in the invention comprise a dextran-coated crystalline structure of cerium oxide wherein tetravalent Ce4+ predominates over trivalent Ce3+ and wherein said nanoparticles have a diameter of approximately from 3 to 5 nm. The nanoparticles exhibit both superoxide dismutase activity and catalase activity in an environment having a substantially neutral or acidic pH. The nanoparticles may be used to make and may be contained in a medication. The subject nanoparticles are useful in a method of promoting a cytotoxic anti-invasive effect on squamous tumor cells and inhibit tumor invasiveness.

Abstract: Processes and methods of making and preparing, compositions and structural products therefrom are provided, whereby the surface area of alumino-silicate based powders is greatly increased and rendered chemically active so that when the functionalized powders are mixed with water poly-condensation reactions occur between the surfaces binding the powders together to form a structural material with negligible emission of carbon compounds. In another embodiment, the surface functionalized powders can be mixed with an additive; a dry aggregate, such as sand and water to make a slurry that can be poured or cast into any desired shape and rapidly cured to a hardened shape suitable for use as a structural material with the mechanical strength equivalent to Portland-cement based concrete products.

Abstract: The invention provides a method of treating ovarian cancer in a mammal, the method inhibits angiogenesis associated with the cancer and comprises the parenteral administration to the mammal of an effective amount of cerium oxide nanoparticles having a predominance of Ce+3.

Abstract: Disclosed herein are methods and materials for influencing proliferation of stem cells. Specifically exemplified herein are compositions comprising cerium oxide nanoparticles which can be used to stimulate proliferation of stem cells under common culture conditions, or which can be utilized to improve therapeutic outcomes.

Abstract: Processes and methods of making and preparing, compositions and structural products therefrom are provided, whereby the surface area of alumino-silicate based powders is greatly increased and rendered chemically active so that when the functionalized powders are mixed with water poly-condensation reactions occur between the surfaces binding the powders together to form a structural material with negligible emission of carbon compounds. In another embodiment, the surface functionalized powders can be mixed with an additive; a dry aggregate, such as sand and water to make a slurry that can be poured or cast into any desired shape and rapidly cured to a hardened shape suitable for use as a structural material with the mechanical strength equivalent to Portland-cement based concrete products.