KR102379684B1 - 감소된 용해도를 갖는 효소로부터 생성된 바이오센서 및 이의 생성 및 사용 방법 - Google Patents
감소된 용해도를 갖는 효소로부터 생성된 바이오센서 및 이의 생성 및 사용 방법 Download PDFInfo
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- KR102379684B1 KR102379684B1 KR1020197034827A KR20197034827A KR102379684B1 KR 102379684 B1 KR102379684 B1 KR 102379684B1 KR 1020197034827 A KR1020197034827 A KR 1020197034827A KR 20197034827 A KR20197034827 A KR 20197034827A KR 102379684 B1 KR102379684 B1 KR 102379684B1
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Abstract
Description
Claims (23)
- 유체 생물학적 샘플(sample)에서 적어도 하나의 표적 분석물의 존재 및/또는 농도를 검출하기 위한 다중-용도 바이오센서(biosensor)로서, 상기 다중-용도 바이오센서가,
전극;
상기 전극의 적어도 일부 상에 분배된 변형된 효소로서, 상기 변형된 효소가 상기 유체 생물학적 샘플 및 상기 다중-용도 바이오센서와 함께 이용되는 캘리브레이션(calibration) 시약에서 불용성이 되도록 상기 효소 상의 적어도 하나의 작용기와 반응물의 반응을 통해 상기 효소가 이의 용해도를 감소시키도록 변형되었으며, 상기 변형된 효소가 유체 생물학적 샘플 및 다중-용도 바이오센서와 함께 사용되는 캘리브레이션 시약보다 낮은 이온(ion) 강도를 갖는 완충액에서 가용성이며, 또한 상기 변형된 효소가 상기 표적 분석물의 검출을 위해 상기 표적 분석물과 상호작용하는 활성 부위를 포함하는, 변형된 효소; 및
상기 변형된 효소의 적어도 일부 상에 배치된 막으로서, 상기 막이 상기 변형된 효소를 상기 전극 상에 고정시키는 것인, 막을 포함하고,
상기 반응물이 장쇄 바이오틴(biotin)을 포함하는,
다중-용도 바이오센서. - 제1항에 있어서, 전위차 분석물 바이오센서로서 추가로 정의되는 다중-용도 바이오센서.
- 제1항에 있어서, 변형된 효소 상의 적어도 하나의 작용기가 알데하이드(aldehyde)-, 아민(amine)-, 카르보닐(carbonyl)-, 카르복실(carboxyl)-, 하이드록실(hydroxyl)-, 케톤(ketone)-, 말레이미드(maleimide)-, 설프하이드릴(sulfhydryl)-, 및 티올(thiol)-반응기를 포함하는 군으로부터 선택되는 다중-용도 바이오센서.
- 제1항에 있어서, 막이 검출될 표적 분석물에 대해 투과성이지만, 변형된 효소에 대해서는 불투과성인 다중-용도 바이오센서.
- 제1항에 있어서, 막이 폴리우레탄(polyurethane), 실리콘(silicone), 폴리비닐 클로라이드 및 이들의 조합을 포함하는 군으로부터 선택되는 물질로 형성되는 다중-용도 바이오센서.
- 제1항에 있어서, 효소가 요소분해효소, 글루코스(glucose) 산화효소, 글루타메이트(glutamate) 산화효소, 피루베이트(pyruvate) 산화효소, 사르코신(sarcosine) 산화효소, 크레아티닌(creatinine) 아미드가수분해효소, 크레아틴 아미디노하이드롤라제(creatine amidinohydrolase), 아스코르베이트(ascorbate) 산화효소, 알콜(alcohol) 산화효소, 콜레스테롤(cholesterol) 산화효소, 콜린(choline) 산화효소, 빌리루빈(bilirubin) 산화효소, 락카제(laccase), 티로시나제(tyrosinase), 알콜 탈수소효소, 글루코스 탈수소효소, 글루타메이트 탈수소효소, 락테이트 탈수소효소, 및 피루베이트 탈수소효소를 포함하는 군으로부터 선택되는 다중-용도 바이오센서.
- 제1항에 있어서, 다중-용도 혈액 요소 질소(BUN) 바이오센서로 추가로 정의되며, 적어도 하나의 변형된 효소가 변형된 요소분해효소인 다중-용도 바이오센서.
- 제1항에 있어서, 바이오센서가 적어도 14일의 사용 수명을 갖는 다중-용도 바이오센서.
- 제1항에 있어서, 효소에 부착된 반응물이 변형되지 않은 효소의 분자량 및/또는 등전점과 비교하는 경우 변형된 효소의 분자량을 증가시키고/시키거나 등전점을 변화시키는 다중-용도 바이오센서.
- 기판:
복수의 다중-용도 바이오센서로서, 상기 복수의 다중-용도 바이오센서 각각이 상기 기판의 적어도 하나의 표면 상에 공간적으로 위치되고, 상기 복수의 다중-용도 바이오센서 중 적어도 하나가 제1항 내지 제9항 중 어느 한 항의 다중-용도 바이오센서인, 복수의 다중-용도 바이오센서를 포함하는,
다중-용도 바이오센서 어레이 어셈블리(array assembly). - 다중-용도 바이오센서를 생성시키는 방법으로서, 상기 방법이,
(a) 효소 상의 적어도 하나의 작용기와 반응물을 반응시킴으로써 제1 완충액에 존재하는 상기 효소를 변형시켜, 변형된 효소가 유체 생물학적 샘플 및 상기 다중-용도 바이오센서와 함께 이용되는 캘리브레이션 시약에서 불용성이 되도록, 변형되지 않은 효소와 비교하는 경우 감소된 용해도를 갖는 상기 변형된 효소를 생성시키는 단계로서, 상기 변형된 효소가 유체 생물학적 샘플 및 다중-용도 바이오센서와 함께 사용되는 캘리브레이션 시약보다 낮은 이온(ion) 강도를 갖는 완충액에서 가용성이며, 또한 상기 변형된 효소가 표적 분석물의 검출을 위해 상기 표적 분석물과 상호작용하는 활성 부위를 포함하고, 상기 반응물이 장쇄 바이오틴(biotin)을 포함하는, 단계;
(b) 상기 변형된 효소의 침전물을 형성시키는 단계;
(c) 제2 완충액에 상기 변형된 효소의 침전물을 재용해시켜 변형된 효소 용액을 제공하는 단계로서, 상기 제2 완충액이 상기 제1 완충액보다 낮은 이온 강도를 가져, 상기 변형된 효소가 상기 제2 완충액에서는 가용성이지만, 상기 제1 완충액에서는 덜 가용성이거나 불용성인, 단계;
(d) 전극의 적어도 일부 상에 특정량의 상기 변형된 효소 용액을 분배하는 단계;
(e) 상기 전극 상의 상기 변형된 효소 용액을 건조시키는 단계; 및
(f) 상기 변형된 효소의 적어도 일부 및 상기 전극 상에 막을 배치하는 단계로서, 상기 막이 상기 전극 상에 상기 변형된 효소를 고정시키는 단계를 포함하는,
방법. - 제11항에 있어서, 다중-용도 분석물 바이오센서가 전위차 분석물 바이오센서로 추가로 정의되는 방법.
- 제11항에 있어서,
(i) 효소 상의 적어도 하나의 작용기가 알데하이드-, 아민-, 카르보닐-, 카르복실-, 하이드록실-, 케톤-, 말레이미드-, 설프하이드릴-, 및 티올-반응기를 포함하는 군으로부터 선택되고;
(ii) 막이 검출될 표적 분석물에 대해 투과성이지만, 변형된 효소에는 불투과성이고;
(iii) 상기 막이 폴리우레탄, 실리콘, 폴리비닐 클로라이드 및 이들의 조합을 포함하는 군으로부터 선택되는 물질로 형성되고;
(iv) 상기 효소가 요소분해효소, 글루코스 산화효소, 글루타메이트 산화효소, 피루베이트 산화효소, 사르코신 산화효소, 크레아티닌 아미드가수분해효소, 크레아틴 아미디노하이드롤라제, 아스코르베이트 산화효소, 알콜 산화효소, 콜레스테롤 산화효소, 콜린 산화효소, 빌리루빈 산화효소, 락카제, 티로시나제, 알콜 탈수소효소, 글루코스 탈수소효소, 글루타메이트 탈수소효소, 락테이트 탈수소효소, 및 피루베이트 탈수소효소를 포함하는 군으로부터 선택되고;
(v) 상기 효소에 부착된 상기 반응물이 변형되지 않은 효소의 분자량 및/또는 등전점과 비교하는 경우 상기 변형된 효소의 분자량을 증가시키고/시키거나 등전점을 변화시키는 것 중 적어도 하나인 방법. - 제11항 내지 제13항 중 어느 한 항에 있어서, 다중-용도 바이오센서가 다중-용도 혈액 요소 질소(BUN) 바이오센서로 추가로 정의되고, 적어도 하나의 변형된 효소가 요소분해효소인 방법.
- 제11항 내지 제13항 중 어느 한 항에 있어서, 상기 생성된 바이오센서가 적어도 14일의 사용 수명을 갖는 방법.
- 제11항 내지 제13항 중 어느 한 항에 있어서,
(g) 단계 (a) 전에 제1 완충액으로의 완충액 교환에 의해 부형제로부터 효소를 정제하는 단계; 및
(h) 단계 (d) 전에 상기 효소의 활성을 측정하는 단계 중 적어도 하나를 추가로 포함하는,
방법. - 다중-용도 바이오센서 어레이 어셈블리를 생성시키는 방법으로서,
상기 방법이 기판의 적어도 하나의 표면 상에 복수의 다중-용도 바이오센서를 형성시키는 단계로서, 상기 복수의 다중-용도 바이오센서 각각이 상기 기판의 적어도 하나의 표면 상에 공간적으로 위치되고, 상기 복수의 다중-용도 바이오센서 중 적어도 하나가 제11항 내지 제13항 중 어느 한 항의 방법에 의해 형성되는, 단계를 포함하는,
방법. - 유체 생물학적 샘플에서 표적 분석물의 존재 및/또는 농도를 검출하기 위한 방법으로서,
(a) 상기 유체 생물학적 샘플을 제1항 내지 제9항 중 어느 한 항의 다중-용도 바이오센서를 함유하는 혈액 가스(gas), 전해질 및/또는 대사물 기기에 삽입하는 단계; 및
(b) 상기 다중-용도 바이오센서에 의해 포획된 상기 표적 분석물의 존재 및/또는 농도를 측정하는 단계를 포함하는,
방법. - 유체 생물학적 샘플에서 복수의 표적 분석물의 존재 및/또는 농도를 검출하기 위한 방법으로서,
(a) 상기 유체 생물학적 샘플을 제10항의 다중-용도 바이오센서 어레이 어셈블리를 함유하는 혈액 가스, 전해질 및/또는 대사물 기기에 삽입하는 단계; 및
(b) 상기 어레이 어셈블리의 개별적 다중-용도 바이오센서에 의해 포획된 상기 복수의 표적 분석물 각각의 존재 및/또는 농도를 측정하는 단계를 포함하는,
방법. - 제18항에 있어서, 유체 생물학적 샘플이 혈액, 혈장, 혈청, 소변, 타액, 가래, 뇌척수액(CSF), 피부, 장액, 복강액, 낭포액, 땀, 간질액, 세포외액, 눈물, 점액, 방광 세척액, 정액, 분변, 흉막액, 비인두액, 및 이들의 조합을 포함하는 군으로부터 선택되는 방법.
- 삭제
- 삭제
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JP2008502921A (ja) | 2004-06-09 | 2008-01-31 | インストゥルメンテーション ラボラトリー カンパニー | 電気化学尿素センサおよびその製造方法 |
JP5740754B2 (ja) | 2010-08-26 | 2015-07-01 | アイシン精機株式会社 | 酵素結晶固定化電極及び酵素結晶固定化電極の製造方法、並びに酵素結晶固定化電極を備えるバイオ電池及びバイオセンサー |
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EP3619531A4 (en) | 2020-05-06 |
JP6952796B2 (ja) | 2021-10-20 |
CA3062304C (en) | 2021-12-28 |
JP2020518817A (ja) | 2020-06-25 |
KR20200003008A (ko) | 2020-01-08 |
WO2018204627A1 (en) | 2018-11-08 |
CN110621999B (zh) | 2021-11-09 |
CN110621999A (zh) | 2019-12-27 |
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