Abstract: A closed-loop large-scale preparation method of fluoride nanomaterial is disclosed, comprising the following steps: dissolving initial raw material into water-soluble salt by using volatile acid; evaporating the remaining acid under reduced pressure and recovering; then, adding oily organic matter with high boiling point to continue to evaporate the combined volatile acid under reduced pressure; adding an oil-soluble fluorine source to the generated oil-soluble salt; increasing the reaction temperature to increase the crystallinity of the fluoride; after cooling, separating and recovering the product and the oily organic matter; and repeating the process to realize large-scale preparation. The method uses the closed-loop process flow, does not discharge waste, and has high device yield per unit volume, low production cost and low specified asset investment. The product has the characteristics of uniform particle size and good dispersibility.

Abstract: A method for constructing a support vector machine of a nonparallel structure is provided. On the basis of a traditional parallel support vector machine (SVM), a least square term of samples is added, an additional empirical risk minimization term and an offset constraint term are added to an original optimization problem, so as to obtain two nonparallel hyperplanes respectively, and a new nonparallel support vector machine with additional empirical risk minimization is formed. The method includes: preprocessing data, solving a Lagrange multiplier of a positive-class hyperplane, solving a Lagrange multiplier of a negative-class hyperplane, solving parameters of positive-class and negative-class hyperplanes, and determining a class of a new data point. Through the new method, a new nonparallel vector machine algorithm is proposed to further improve classification accuracy of hyperspectral images on the basis of the algorithm itself, so as to obtain better classification performance.

Abstract: Disclosed herein is a drug delivery vehicle. The drug delivery vehicle includes a lipid nanoparticle core for enclosing a primary drug and a protective shell surrounding the lipid nanoparticle. Also disclosed herein is a drug delivery system including the drug delivery vehicle carrying the primary drug, a method of preparing the drug delivery system and a method of using the drug delivery system.

Abstract: The present invention discloses a pharmaceutical use of argininyl fructosy glucose (AFG), and belongs to the field of research and development of pharmaceutical products. The pharmaceutical use refers to application of the AFG as an active ingredient in preparation of a drug for treating or preventing an acute hepatic failure disease (AHFD). The AHFD is an oxidative stress injury caused by use of a combination of lipopolysaccharide (LPS) and D-galactosamine (D-GalN), and the drug is used for protecting liver cells from injuries, and reducing apoptosis caused by LPS/D-GalN. The purity of the AFG is 80%-99.99%. The present invention proposes the use of the AFG in prevention or treatment of the acute hepatic failure for the first time, which provides a new raw material for the preparation of the drug for the acute hepatic failure, and also provides a new method for the prevention and treatment of the acute liver failure.

Abstract: The present invention discloses a pharmaceutical use of argininyl fructosy glucose (AFG), and belongs to the field of research and development of pharmaceutical products. The pharmaceutical use refers to application of the AFG as an active ingredient in preparation of a drug for treating or preventing an acute hepatic failure disease (AHFD). The AHFD is an oxidative stress injury caused by use of a combination of lipopolysaccharide (LPS) and D-galactosamine (D-GalN), and the drug is used for protecting liver cells from injuries, and reducing apoptosis caused by LPS/D-GalN. The purity of the AFG is 80%-99.99%. The present invention proposes the use of the AFG in prevention or treatment of the acute hepatic failure for the first time, which provides a new raw material for the preparation of the drug for the acute hepatic failure, and also provides a new method for the prevention and treatment of the acute liver failure.