The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2018
Filed:
Jun. 20, 2014
The Catholic University of Korea Industry-academic Cooperation Foundation, Seoul, KR;
Utah-inha Dds & Advanced Therapeutics Research Center, Incheon, KR;
Abstract
The present invention relates to a reducing or non-reducing polynucleotide polymer using a nucleotide from AMP, ADP, ATP, GMP, GDP, GTP, CMP, CDP and CTP, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC), and N-hydroxy-succinimide (NHS) for drug delivery and a method for preparing same, and provides a reducing or non-reducing polymer synthesized by using nucleotides, a method for preparing same, and a polymer composition for drug delivery containing the reducing or non-reducing polymer. The present invention relates to a drug delivery carrier for delivering proteins or peptides to a targeted area through electrostatic attraction, by obtaining a negatively (−) charged polymer by using nucleotides to synthesize the reducing or non-reducing polymer, which is easily breakable due to disulfide bonds, and then bonding the negatively (−) charged polymer with a positively (+) charged protein or peptide, wherein a polymer derived from a non-viral drug delivery carrier containing the novel reducing or non-reducing polymer is capable of effectively enabling escape of a drug, delivered by means of proton buffering activity, from an endosome to other organelles in a cell.