Abstract:
Fluorescent surface enhanced raman scattering nano-tagging particles and a method for preparing the same are provided to be easily used for the analysis of the various cytological and moleculogy phenomenon including the apoptosis important in order to maintain the cell homeostasis. Fluorescent surface enhanced raman scattering nano-tagging particles comprises silica core particle(101), silver nano-particle layer(102), polar polymer layer(103), silica shell(104) and functional group layer(105). The silver nano-particle layer surrounds the silica center near particle. The polar polymer layer surrounds the nanosilver particle layer. The silica shell surrounds the polar polymer layer and comprises the fluorescent material. The functional group layer surrounds the silica shell.
Abstract:
Peptide nucleic acid(PNA) monomers having a photolabile protecting group are provided to improve preparation speed and economical efficiency of PNA through photolithograph method. The peptide nucleic acid monomers represented by the formulas(I) to (IV) are provided, wherein P is the photolabile protecting group; An is 4-methoxybenzoyl group; iBu is isobutyryl group; and the photolabile protecting group is selected from 2-nitrobenzyl derivative, 2-methyl-2-(2-nitrophenyl)propyloxycarbonyl derivative, benzoin derivative and ortho-nitrobenzyloxy derivative or further includes the compound represented by the formula(V). A method for preparing the peptide nucleic acids represented by the formula(XV) comprises the steps of: (i) reacting the compound represented by the formula(XIII) with the photolabile protecting group so as to prepare the compound represented by the formula(XIV); and (ii) independently reacting the compound represented by the formula(XIV) with 1-(carboxymethyl)-4-N-(4-methoxybenzoyl)cytosine, 9-(carboxymethyl)-2-N-(isobutyryl) guanine, 1-N-carboxymethylthymine and 9-(carboxymethyl)-6-N-(4-methoxybenzoyl)adenine.
Abstract:
본 발명은 생체 분석 물질을 빠르게 추적(tracking), 표적(targeting) 및 형상(imaging) 하는데 이용할 수 있는 형광 표면증강 라만 산란 나노-표지 입자 및 이의 제조방법에 관한 것이다. 본 발명에 따른 형광 표면증강 라만 산란 나노-표지 입자는 형광 및 라만 산란에 매우 민감하기 때문에 생체 분석 물질을 보다 쉽고, 빠르게 분석할 수 있다. 따라서, 본 발명에 따른 형광 표면증강 라만 산란 나노-표지 입자는 세포와 조직에서 암 또는 다른 질병과 관련된 다양한 세포학적 및 분자학적 현상의 분석에 쉽게 이용될 수 있다. 라만, 형광, 나노-표지입자, 아포프토시스
Abstract:
본 발명은 자성-표면증강 라만산란 입자(M-SERS dots) 및 이의 제조방법, 및 이를 이용한 바이오센서에 관한 것이다. 구체적으로는 입자 응집체 및 상기 입자 응집체 주변을 둘러싸는 실리카 껍질을 포함하는 자성-표면증강 라만산란 입자로서, 상기 입자 응집체는 자성물질을 포함하는 자성 중심입자; 상기 자성 중심입자 표면에 도입된 은나노 입자; 및 상기 은나노 입자 주변에 고정된 표지물질을 포함하는 입자가 1개 이상 응집되어 형성된 것인 자성-표면증강 라만산란 입자, 및 이의 제조방법에 관한 것이며, 상기 자성-표면증강 라만산란 입자; 상기 자성-표면증강 라만산란 입자 표면에 도입된 작용기; 및 상기 작용기에 부착된 리셉터를 포함하는 바이오센서, 및 이의 제조방법에 관한 것이다. 본 발명에 따른 바이오센서는 자성물질과 은나노 입자를 포함한 자성-표면증강 라만산란 입자를 이용함으로써, 핫스팟의 유도가 효율적으로 이루어지고, 상기 바이오센서에 결합된 물질의 검출이 용이하다는 장점을 가진다. 또한, 본 발명에 따른 바이오센서는 라벨 프리이거나 라벨의 개수에 특별한 제한이 없고 무독성인 특성을 가져, 특히 바이오물질의 검출이 중요한 의학 및 약학 등의 분야에 다양하게 이용될 수 있다. 자성-표면증강 라만산란 입자, 바이오센서, 은나노 입자, 자성입자, 핫스팟
Abstract:
A magnetism-surface enrichment Raman scattering particle is provided to be extensively used for field including medical science and pharmacy etc. of which detection of material is important, to form efficiently hot spot and to perform easily analysis. A magnetism-surface enrichment Raman scattering particle contains particle agglomerate and a silica shell surrounding the particle agglomerate. The particle agglomerate is formed by cohering one or more of a magnetism core particle including magnetic materials; a nanosilver particle introduced to a surface of magnetism core particle and particle including tracer fixed to the nanosilver particle. The magnetism core particle comprises magnetic materials and silica coating that surrounds the magnetic materials. The magnetic materials is made of Co, Mn, Fe, Ni, Gd, MM'2O4 and MxOy(M or M' is Co, Fe, Ni, Mn, Zn, Gd, Cr, 0
Abstract:
A method for selecting and analyzing compounds or biomolecules is provided to more economically screen many compounds and biomolecules with high speed by using microbead labeled by surface-enhanced Raman scattering and dielectrophoresis. The method comprises the steps of: (a) labelling micro-beads with nano-silver particles and a chemical material showing high binding force with the nano-silver particles such as 2-methylbenzene thiol, 4-methylbenzene thiol, 2-naphthalene thiol, 4-methoxybenzene thiol, 3-methoxybenzene thiol, 3,4-dimethylbenzene thiol, 3,5-dimethylbenzene thiol, 2-mercapto toluene, 4-mercapto toluene and 4-mercapto pyridine; (b) introducing a biomolecule-specific ligand such as biotin, antibody, lectin and peptide into the labelled micro-bead surface; (c) introducing a biomolecule into the ligand-introduced microbead; (d) selecting the biomolecule-introduced microbead using dielectrophoresis; and (e) analyzing the selected biomolecule through surface-enhanced raman spectroscopy.