Patents by Inventor Wenli Hui

Wenli Hui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120121717
    Abstract: The invention relates to Polysaccharide-coated GoldMag particles (DPGPs) and the method of its synthesis, which characterized GoldMag particles as a core and natural or synthetic biodegradable polysaccharide such as dextran, cyclodextrin and derivatives as shell. DPGPs are synthesized by mixing Polysaccharide-coated GoldMag particles (DPGPs) with drug through physical bond. The preparation of the drug-loaded composite particles include: preparing the polysaccharide-coated GoldMag particles and then loading the drug on the polysaccharide-coated GoldMag particles. The drug-loading process is carried out through directly mixing the polysaccharide-coated GoldMag particles with the drug solution by the shaker. That means the polysaccharide-coated GoldMag particles load the drug through affinity adsorption.
    Type: Application
    Filed: December 30, 2008
    Publication date: May 17, 2012
    Inventors: Xu Chao, Yali Cui, Mingli Peng, Chao Chen, Xiaofang Xin, Ke Li, Wenli Hui
  • Patent number: 7175912
    Abstract: The invention relates to a super-paramagnetic composite particle with core/shell structure, preparation method and use thereof. The composite particle is consisted of a core portion and a shell portion coated on the surface of the core portion, wherein said core portion is 10–70% by weight and said shell portion is 30–90% by weight based on the total weight of the composite particle, and said core portion is consisted of magnetic particles of Fe3O4, ?-Fe2O3 or other ferric oxides, or magnetic particles of ferrites of tervalent ferrum and bivalent manganese, nickel, zinc or copper, and the said shell portion is consisted of elementary gold or silver. The particle has an average diameter of 0.05–50 ?m. The preparation method comprises preparing the core portion magnetic particle by chemical co-precipitation and depositing gold or silver to coat the magnetic particle by chemical reduction.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: February 13, 2007
    Assignee: Shanxi Lifegen Co., Ltd.
    Inventors: Yali Cui, Chao Chen, Qiong Wang, Wenli Hui
  • Publication number: 20040219361
    Abstract: The invention relates to a super-paramagnetic composite particle with core/shell structure, preparation method and use thereof. The composite particle is consisted of a core portion and a shell portion coated on the surface of the core portion, wherein said core portion is 10-70% by weight and said shell portion is 30-90% by weight based on the total weight of the composite particle, and said core portion is consisted of magnetic particles of Fe3O4, &ggr;-Fe2O3 or other ferric oxides, or magnetic particles of ferrites of tervalent ferrum and bivalent manganese, nickel, zinc or copper, and the said shell portion is consisted of elementary gold or silver. The particle has an average diameter of 0.05-50 &mgr;m. The preparation method comprises preparing the core portion magnetic particle by chemical co-precipitation and depositing gold or silver to coat the magnetic particle by chemical reduction.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 4, 2004
    Applicant: Shanxi Lifegen Co., Ltd.
    Inventors: Yali Cui, Chao Chen, Qiong Wang, Wenli Hui