Abstract: Described are a carbon-iodine conjugated polymer and preparation thereof, an imaging marker thereof, and uses thereof for preparing a localization marker, and belongs to the technical field of imaging markers. The conjugated structure enables the polymer to have strong absorption in a visible light region, and high iodine content of up to 84.1% corresponds to the strong imaging ability thereof. During surgery, on the basis of the dual guidance of a polymer-based image marker and naked eye observation, the marker can better facilitate determination of tumor resection margins, achieving precise resection of tumors and minimizing damage to surrounding normal tissues. During cyberknife-based treatment, the polymer can replace clinical gold markers to provide ray marker guidance.

Abstract: Alloys including iron, nickel, manganese, aluminum and chromium are disclosed. The alloys have high strength and ductility. The alloys are prepared from readily available transition metals, and can be used in applications where properties similar to steel are necessary or advantageous.

Abstract: The present invention relates to methods and compositions for the investigation of amyloid formation. In preferred embodiments, amyloid formation associated with type II diabetes is monitored by fluorescence spectroscopic measurements of the activity of p-cyano-phenylalanine-substituted islet amyloid polypeptide, and derivatives thereof, under an amyloid-forming condition. In some embodiments, the amyloid-forming condition is associated with a diseased, or putatively diseased, cell or tissue. In some embodiments, the invention provides a method of evaluating the severity of the amyloid-forming condition, and changes therein induced by agents that inhibit, or potentially inhibit, amyloid formation.