-
公开(公告)号:KR1020120089913A
公开(公告)日:2012-08-16
申请号:KR1020100131839
申请日:2010-12-21
Applicant: 한국과학기술연구원
CPC classification number: C12Q1/37 , B82Y5/00 , G01N33/54346 , G01N33/582 , G01N33/68 , G01N33/84
Abstract: PURPOSE: A nanosensor containing glycol chitosan-coated gold nanoparticles, peptides, and fluorescent substances is provided to diagnose certain disease such as cancer. CONSTITUTION: A nanosensor for detecting protease contains glycol chitosan-coated gold nanoparticles, peptides, and fluorescent substances. The peptide has 9-15 amino acid containing a protease cleavage site. One end and the other end of the peptide are conjugated with fluorescent substances and glycol chitosan of gold nanoparticles, respectively. The protease includes matrix metalloproteinases(MMP), caspase , thrombine, or proteosome. The peptide has 9-15 amino acids including Pro-Leu-Gly-Val-Arg (SEQ ID NO: 1), Gly-Asp-Glu-Val-Asp-Ala-Pro(SEQ ID NO: 2), Phe-Pip-Arg-Ser(Pip=pipecolic acid)(SEQ ID NO: 3), Gly-Gly-Arg-Arg-Gly-Gly(SEQ ID NO: 4), Arg, or Lys.
Abstract translation: 目的:提供含有乙二醇壳聚糖包被的金纳米颗粒,肽和荧光物质的纳米传感器来诊断某些疾病如癌症。 构成:用于检测蛋白酶的纳米传感器含有乙二醇壳聚糖包被的金纳米颗粒,肽和荧光物质。 该肽具有含有蛋白酶切割位点的9-15个氨基酸。 肽的一端和另一端分别与金纳米颗粒的荧光物质和乙二醇壳聚糖共轭。 蛋白酶包括基质金属蛋白酶(MMP),半胱天冬酶,血栓素或蛋白体。 肽具有9-15个氨基酸,包括Pro-Leu-Gly-Val-Arg(SEQ ID NO:1),Gly-Asp-Glu-Val-Asp-Ala-Pro(SEQ ID NO:2),Phe-Pip -Arg-Ser(Pip =哌可酸)(SEQ ID NO:3),Gly-Gly-Arg-Arg-Gly-Gly(SEQ ID NO:4),Arg或Lys。