KR102272915B1 - 새로운 외상성 뇌손상 및 감염병 poct 진단시스템 - Google Patents
새로운 외상성 뇌손상 및 감염병 poct 진단시스템 Download PDFInfo
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- KR102272915B1 KR102272915B1 KR1020200123989A KR20200123989A KR102272915B1 KR 102272915 B1 KR102272915 B1 KR 102272915B1 KR 1020200123989 A KR1020200123989 A KR 1020200123989A KR 20200123989 A KR20200123989 A KR 20200123989A KR 102272915 B1 KR102272915 B1 KR 102272915B1
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Abstract
Description
도 2는 본 발명의 일 실시예에 의한 자성 마이크로로드 제조 방법을 나타낸 것이다.
도 3은 본 발명의 일 실시예에 의한 자성 마이크로로드의 직경, 길이 등에 대한 현미경 상의 이미지이다.
도 4는 본 발명의 일 실시예에 의한 자성 마이크로로드의 화학표면 처리과정을 나타낸 것이다.
도 5는 본 발명의 일 실시예에 의한 자성입자의 표면 처리에 따른 형광의 변화를 측정한 것으로 (a)는 산성용액을 이용하여 표면 처리하지 않은 자성입자, (b)는 산성용액을 이용하여 표면 처리한 자성입자를 각각 타나낸 사진이다.
도 6은 본 발명의 일 실시예에 의한 자성 마이크로로드의 표면을 기존의 자성비드의 표면과 비교하여 나타낸 것으로 (a)는 본 발명의 자성 마이크로로드의 표면 (b)는 본 발명의 자성 마이크로로드의 발광 개요, (c)는 기존의 자성 비드의 표면, (d)는 기존의 자성비드의 발광 개요를 각각 나타낸 것이다.
도 7은 본 발명의 일 실시예에 의한 자성 마이크로로드의 최적화 결과를 나타낸 것으로 (a)는 실란화 시간에 따른 발광의 변화 사진, (b)는 실란화 시간에 따른 실험결과 그래프를 각각 나타낸 것이다.
도 8은 본 발명의 일 실시예에 의한 다중 검지기능을 수행하는 자성 마이크로로드의 길이 코딩 시스템의 일 예를 나타낸 것이다.
도 9는 본 발명의 일 실시예에 의한 자성 마이크로로드와 마커(항원)의 항원-항체 반응의 모식도를 나타낸 것이다.
도 10은 본 발명의 일 실시예에 의한 자석 봉과 히팅 블록을 이용한 면역반응의 혼합 가열 및 세척과정을 나타낸 것이다.
도 11은 본 발명의 일 실시예에 의한 초고감도 형광이미지 분석기기에 의해 검출된 이미지 및 형광 신호를 검출한 결과를 나타낸 것으로 (a)는 본 발명의 일 실시예에 의한 자성 마이크로로드의 이미지, (b)는 본 발명의 일 실시예에 의한 형광이미지, (c)는 본 발명의 분석시스템에 의한 자성 마이크로로드의 형광이미지, (d)는 기존의 분석 시스템에 의한 형광이미지를 각각 나타낸 것이다.
도 12는 본 발명의 일 실시예에 의한 자성 마이크로로드의 길이 코딩 시스템을 이용하여 세 개 이상의 바이오 마커를 형광 이미지 검출 및 다중 분석한 결과를 나타낸 것이다.
도 13은 본 발명의 일 실시예에 의한 GFAP 농도 0~500pg/ml에서 실험한 결과를 나타낸 사진이다.
도 14는 본 발명의 일 실시예에 의한 GFAP 농도 0~500pg/ml에서 실험한 결과를 나타낸 그래프이다.
도 15는 본 발명의 일 실시예에 의한 UCHL-1 농도 0~500pg/ml에서 실험한 결과를 나타낸 사진이다.
도 16은 본 발명의 일 실시예에 의한 UCHL-1 농도 0~500pg/ml에서 실험한 결과를 나타낸 그래프이다.
도 17은 본 발명의 일 실시예에 의한 GFAP 농도 0~2.5pg/ml에서 실험한 결과를 나타낸 사진 및 그래프이다.
도 18은 본 발명의 일 실시예에 의한 GFAP(on 300㎛ 자성입자), UCHL-1(on 400㎛ 자성입자)의 다중검출을 수행한 결과를 나타낸 사진으로 (a)는 GFAP결과 (b)는 UCHL-1의 결과를 각각 나타낸 것이다.
도 19, 20는 본 발명의 일 실시예에 의한 IFN-γ 농도 0~1000pg/ml에서 실험한 결과를 나타낸 사진 및 그래프이다.
도 21은 본 발명의 일 실시예에 의한 IFN-γ 농도 0~2.5pg/ml에서 실험한 결과를 나타낸 그래프이다.
Claims (26)
- 자석 반응 금속을 포함하는 코어;
상기 코어를 둘러싸며 균일한 두께를 갖는 쉘 층; 및
생체물질을 포획하기 위해 상기 쉘 층 위에 도입된 포획 프로브를 포함하되,
상기 포획 프로브는 외상성 뇌손상 또는 감염병 진단을 위한 바이오마커를 항원으로 하는 항체를 포함하고,
상기 쉘 층의 표면에는 친수성 작용기가 도입되어 존재하며,
상기 친수성 작용기는 실라놀기, 또는 실라놀기로부터 유래된 카복실기, 아미노기, 히드록시기, 티올기, 또는 알데히드기이고,
검출한계가 1pg/ml 이하이며, 동적범위(Dynamic Range)가 log3 이상인 것인 자성입자.
- 삭제
- 제1항에 있어서,
상기 자성입자는 2종 이상의 상이한 길이를 가지는 자성입자가 혼합되어 있으며, 2종 이상의 상기 바이오마커를 동시에 진단할 수 있는 것인 자성입자.
- 제1항에 있어서,
상기 친수성 작용기의 밀도가 1~80개/nm2인 것인 자성입자.
- 삭제
- 제1항에 있어서,
상기 포획 프로브는 상기 쉘 층의 표면의 친수성 작용기와 연결된 것인 자성입자.
- 제1항에 있어서,
상기 코어가 상기 자성입자 총 부피의 60% 이상인 것인 자성입자.
- 제1항에 있어서,
상기 쉘 층 표면의 평균 표면 거칠기(Ra)는 15nm 이하인 것인 자성입자.
- 제1항에 있어서,
상기 쉘 층의 두께는 1 내지 100㎛인 것인 자성입자.
- 제1항에 있어서,
상기 자성입자는 유리가 코팅된 금속 미세와이어의 절단물인 것인 자성입자.
- 제1항에 있어서,
상기 자성입자는 수중에서 부유하지 않는 크기 및 비중을 갖는 것인 자성입자.
- 제1항에 있어서,
상기 자성입자는 마이크로로드의 형태를 갖는 것인 자성입자.
- 제12항에 있어서,
상기 마이크로로드의 길이가 10 내지 1,000㎛인 것인 자성입자.
- 제12항에 있어서,
상기 마이크로로드의 종횡비가 2 이상인 것인 자성입자.
- 제1항에 있어서,
상기 바이오마커는 생명체로부터 유래된 시료액 내의 바이오마커인 것인 자성입자.
- (i) 유리로 제작된 쉘 및 자성물질을 포함하는 코어로 구성되는 자성 마이크로로드를 준비하는 단계;
(ii) 상기 자성 마이크로로드의 표면을 산성 용액으로 표면 처리하여 실라놀기를 도입하는 단계;
(iii) 표면 처리된 상기 자성 마이크로로드를 실란계 용액에 침지하여 상기 실라놀기에 실란화합물을 결합시키는 단계;
(iv) 상기 실란화합물의 말단을 프로브와 결합할 수 있는 말단으로 치환하는 단계; 및
(v) 상기 실란 화합물의 말단에 프로브를 부착하는 단계;
를 포함하되,
상기 프로브는 외상성 뇌손상 또는 감염병 진단을 위한 바이오마커를 항원으로 하는 항체를 포함하는 자성입자 제조방법.
- 제16항에 있어서,
상기 (iii) 단계는 상기 자성 마이크로로드를 실란계 용액에 6~24시간 침지하여 수행되는 자성입자 제조방법.
- 제16항에 있어서,
상기 산성용액은 황산과 과산화수소의 혼합용액인 자성입자 제조방법.
- (1) 제1웰에 제1항, 제3항, 제4항 및 제6항 내지 제15항 중 어느 한 항에 따른 자성입자를 제공하는 단계;
(2) 상기 제1웰의 상기 자성입자를 자력을 이용하여 제2웰로 이동시키는 단계;
(3) 생체물질과 특이적 결합을 할 수 있으며 외부 자극에 의해 발광하는 발광물질이 컨쥬게이션된 검출 프로브를 제2웰에 제공하고, 상기 포획 프로브, 상기 생체물질 및 상기 검출 프로브를 반응시켜 자성입자-생체물질-검출 프로브의 복합체를 형성시키는 단계; 및
(4) 자력을 이용하여 제3웰에 상기 자성입자-생체물질-검출 프로브의 복합체를 이동시키며, 외부 자극에 의해 상기 복합체 내 상기 발광물질로부터 방출되는 발광 신호를 측정하여 상기 생체물질을 검출하는 단계를 포함하는 생체물질의 검출방법.
- 제19항에 있어서,
상기 복합체의 형성은 외부 자력을 이용한 반응 촉진 과정을 포함하는 것인 생체물질의 검출방법.
- 제19항에 있어서,
상기 생체물질의 검출은 2종 이상의 상기 생체물질들에 대해 2종 이상의 상기 자성입자들을 이용하여 다중검출하는 것인 생체물질의 검출방법.
- 제21항에 있어서,
상기 다중검출은 길이, 직경, 두께, 형상, 색상 또는 식별 코드에 의해 서로 구분되도록 표지된 상기 자성입자들을 판독하는 과정을 포함하는 것인 생체물질의 검출방법.
- 제19항에 있어서,
상기 제2웰 및 제3웰 사이에 2~10개의 세척웰을 구비하며, 상기 자성입자-생체물질-검출 프로브의 복합체를 상기 세척웰에 순차적으로 침지하여 세척하는 단계를 추가로 포함하는 생체물질의 검출방법.
- 제23항에 있어서,
상기 세척 단계는 외부 자력을 이용하여 상기 자성입자-생체물질-검출 프로브의 복합체를 침지 및 이동시키는 단계인 생체물질의 검출방법.
- 제19항에 있어서,
상기 생체물질 검출방법은 진단시간이 30분 이내인 것인 생체물질의 검출방법.
- 제 19항에 있어서,
상기 생체물질 검출방법은 POCT방법을 통하여 수행되는 것인 생체물질의 검출방법.
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