KR102631862B1 - 면역 크로마토그래피 검사의 감도 향상을 위한 방법 - Google Patents
면역 크로마토그래피 검사의 감도 향상을 위한 방법 Download PDFInfo
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- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
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- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
도 1b는 본원의 일 구현예에 따른 방법의 면역크로마토그래피에 사용될 수 있는 스트립의 구조를 도식적으로 나타낸 것으로, 여기에 기존 방법에 따른 전개 완충액 및 시료 적하 부위를 표시하였다.
도 2는 본원에 따른 시료 적하 방법 (①)과 기존의 적하 방법(②)을 적용한 면역크로마토그래피로 분석물로서 일본 뇌염바이러스 IgM항체를 검사한 결과이다. 저농도의 분석물은 본원에 따른 적하 방법은 양성인 반면, 기존의 방법은 음성으로 검출되었다. 이는 기존 방법에 의한 결과는 상대적으로 낮은 감도에 의한 위음성임을 나타낸다.
도 3은 시료 적하 부위가 색소로 표시된 본원에 따른 방법에 사용될 수 있는 스크립의 일 구현예이다.
도 4는 본원에 따른 방법에 사용될 수 있는 스트립을 수용할 수 있는 하우징의 일 구현예로서, 상기 하우징은 크로마토그래피 전개용 완충액 적하를 위한 창 및 시료 적하용 창이 별도로 구비되어 있다.
도 5는 본원에 따른 방법이 사용되는 스트립의 구체적 예를 도식적으로 나타낸 것이다.
도 6은 본원에 따른 방법이 사용될 수 있는 딥스틱 형태의 스트립 및 사용예를 도식적으로 나타낸 것이다.
Claims (7)
- 시료 중의 표적 분석물을 검출하기 위한 면역 크로마토그래피 방법에서, 상기 표적 분석물의 검출 감도를 향상시키는 방법으로, 상기 방법은:
상기 면역 크로마토그래피에 사용되는 검사 스트립을 제공하는 단계로, 상기 스트립은 전개용 매질, 샘플 패드, 흡수 패드 및 컨쥬게이션 패드를 포함하며, 상기 전개용 매질의 양 단부는 각 각 상기 샘플 패드의 한 단부 및 상기 흡수 패드의 한 단부와 접해 있어, 상기 전개용 매질은 상기 샘플 패드 및 상기 흡수 패드의 사이에 위치하며, 상기 전개용 매질에는 상기 표적 분석물과 특이적 결합을 할 수 있는 포획자, 및 대조군 물질이 일정 간격을 두고 순서대로 부착되어 있으며, 상기 포획자가 상기 샘플 패드에 근접한 방향에 부착되어 있고, 상기 컨쥬게이션 패드는 상기 샘플 패드와 상기 전개용 매질 사이에 위치하고,
상기 포획자 부착 부위 전방의 전개용 매질에 상기 시료를 적하하는 단계; 및
상기 시료 적하 후에, 상기 샘플패드에, 상기 스트립에서의 크로마토그래피 전개를 위한 전개 완충액을 적하하는 단계를 포함하는, 방법.
- 삭제
- 제 1 항에 있어서,
상기 시료가 적하되는 상기 전개용 매질 상의 위치는 색소로 표시되며 상기 색소는 상기 크로마토그래피 전개와 함께 이동하는 것인, 방법.
- 제 1 항에 있어서,
상기 스트립은 지지대를 추가로 포함하며, 상기 샘플 패드, 상기 전개용 매질 및 상기 흡수 패드는 상기 지지대 상에 위치하는 것인, 방법.
- 제 1 항, 제 3 항 또는 제 4 항 중 어느 한 항에 따른 방법에 사용되는 스트립으로,
상기 스트립은 전개용 매질, 샘플 패드, 흡수 패드 및 컨쥬게이션 패드를 포함하며, 상기 전개용 매질의 양 단부는 각 각 상기 샘플 패드의 한 단부 및 상기 흡수 패드의 한 단부와 접해 있어, 상기 전개용 매질은 상기 샘플 패드 및 상기 흡수 패드의 사이에 위치하고, 상기 컨쥬게이션 패드는 상기 샘플 패드와 상기 전개용 매질 사이에 위치하고,
상기 전개용 매질에는 표적 분석물과 특이적 결합을 할 수 있는 포획자 및 대조물질이 일정 간격을 두고 순서대로 부착되어 있으며, 상기 포획자는 상기 샘플 패드에 근접한 방향에 위치하며, 상기 전개용 매질 상의 상기 포획자 부착 부위 전방에는 색소로 표시된 시료 적하 부위를 포함하며, 상기 색소는 크로마토그래피 전개 방향으로 이동할 수 있는 수용성 색소인, 스트립. - 삭제
- 제 5 항에 따른 스트립을 수용하기 위한 하우징으로,
상기 하우징은 상기 스트립의 샘플 패드에 완충액을 적하하기 위한 제 1 창, 시료를 적하하기 위한 제 2 창, 및 포획자 및 대조군 물질이 부착된 부위에서의 반응을 검출하기 위한 제 3 창을 포함하는 것인, 하우징.
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