KR20160013749A - 금 나노구조체의 제조방법, 이에 의해 제조된 금 나노구조체를 포함하는 3차원 골드 전극, 및 센서 - Google Patents
금 나노구조체의 제조방법, 이에 의해 제조된 금 나노구조체를 포함하는 3차원 골드 전극, 및 센서 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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- G01N33/54346—Nanoparticles
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 3 전극 시스템인 전기화학 증착 장치를 나타낸 모식도이다.
도 3(a) 내지 도 3(b)는 실시예1에서 제조된 금 나노구조체를 주사전자현미경(SEM)으로 관찰한 이미지들이다.
도 4(a) 내지 도 4(b)는 실시예1에서 제조된 금 나노구조체를 포함하는 3차원 골드 전극, 및 종래의 일반(bare) 골드 전극의 특성을 시차펄스전압전류법, 및 순환전류전압법을 이용하여 관찰한 결과를 나타낸 그래프들이다.
도 5는 실시예2에서 제조된 금 나노구조체를 포함하는 탄저균 방어항원 센서를 나타낸 모식도이다.
도 6(a) 내지 도 6(b)는 각각 종래의 2차원 표면을 가진 금 나노구조체가 적용된 탄저균 방어항원 센서, 및 실시예2에서 제조된 3차원 나노표면 구조를 가진 금 나노구조체가 적용된 탄저균 방어항원 센서의 검출한계를 나타낸 그래프들이다.
30: 금염 수용액 40: 기준 전극
50: 전기 장치 60: 증착 반응조
101: 크롬(Cr)층 103: 금(Au) 씨드층
200: 마이크로패턴층 310: 제1 금 나노구조체
320: 제2 금 나노구조체
Claims (12)
- 기판 상에 금(Au) 씨드층을 형성하는 단계;
상기 금(Au) 씨드층 상에 상기 금(Au) 씨드층의 일부영역이 노출되는 마이크로패턴층을 형성하는 단계;
금염 수용액이 공급되는 분위기에서 상기 기판에 1차 전기화학 증착 공정을 수행하여, 상기 마이크로패턴층에 의해 노출된 상기 금(Au) 씨드층 상에 상기 금염 수용액의 금 입자들이 증착된 제1 금 나노구조체를 형성하는 단계;
상기 마이크로패턴층을 선택적으로 제거하는 단계; 및
상기 금염 수용액이 공급되는 분위기에서 상기 기판에 2차 전기화학 증착공정을 수행하여, 상기 금(Au) 씨드층 상에 형성된 제1 금 나노구조체에 상기 금염 수용액의 금 입자들이 추가 증착된 제2 금 나노구조체를 형성하는 단계를 포함하는 것을 특징으로 하는 금 나노구조체의 제조방법. - 제1항에 있어서,
상기 제2 금 나노구조체는 꽃 형상의(flower-like) 3차원 나노표면 구조를 포함하는 것을 특징으로 하는 금 나노구조체의 제조방법. - 제1항에 있어서,
상기 마이크로패턴층을 형성하는 단계는,
상기 금(Au) 씨드층 상에 일정 간격으로 패턴화된 포토레지스트가 증착된 것을 특징으로 하는 금 나노구조체의 제조방법. - 제1항에 있어서,
상기 금염 수용액은,
염화금(Ⅲ)수화물(Gold(Ⅲ)chloride hydrate; AuCl3·H2O), 염화금산(Hydrogen Tetrachloroaurate(Ⅲ); HAuCl4·H2O), 염화금산칼륨(Potassium tetrachloroaurate(Ⅱ); KAuCl4), 염화금산나트륨이수화물(Sodium tetrachloroaurate(Ⅲ) dihydrate; NaAuCl4·H2O), 브롬화금(Ⅲ)수화물(Gold(Ⅲ)bromide hydrate; AuBr3·H2O), 및 염화금(Ⅲ)(Gold(Ⅲ) chloride; AuCl3)중에서 선택되는 적어도 어느 하나를 사용하는 것을 특징으로 하는 금 나노구조체의 제조방법. - 제1항에 있어서,
상기 1차, 및 2차 전기화학 증착공정은,
상기 기판을 작업 전극으로 하는 것으로,
기준 전극 및 상대 전극과 함께 상기 기판을 금염 수용액에 침지시키고, 상기 작업 전극인 기판 및 상기 상대전극에 전압을 인가하여 수행하는 것을 특징으로 하는 금 나노구조체의 제조방법. - 제5항에 있어서,
상기 기준 전극은 은/염화은(Ag/AgCl)을 사용하고, 상기 상대 전극은 백금(Pt)을 사용하는 것을 특징으로 하는 금 나노구조체의 제조방법. - 제5항에 있어서,
상기 작업전극에 인가하는 전압은 -0.25V 내지 -0.4V 인 것을 특징으로 하는 금 나노구조체의 제조방법. - 제1항에 있어서,
상기 마이크로패턴층을 선택적으로 제거하는 단계는 식각용액을 이용하는 것으로, (CH3)2CHOH(아세톤), HF(불산), BHF(버퍼드 불산), H2SO4(황산), H2O2(과산화수소), IPA(이소프로필 알코올), NH4OH(암모니아), HCL(염산), H3PO4(인산), 및 박리액(stripper) 중에서 선택되는 어느 하나를 사용하는 것을 특징으로 하는 금 나노구조체의 제조방법. - 제1항 내지 제8항 중 어느 한 항에 의해 제조된 금 나노구조체를 포함하는 3차원 골드 전극.
- 제9항에 있어서,
상기 3차원 골드 전극은 200mm2 내지 800mm2의 표면적을 갖는 것을 특징으로 하는 3차원 골드 전극. - 제1항 내지 제8항 중 어느 한 항에 의해 제조된 금 나노구조체를 포함하는 센서.
- 제11항에 있어서,
상기 센서는 탄저균 방어 항원 센서로,
탄저균 항원에 대해 80fM 내지 90fM의 검출한계를 갖는 것을 특징으로 하는 센서.
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KR20170130216A (ko) * | 2016-05-18 | 2017-11-28 | 주식회사 큐바이오센스 | 다공성 나노구조체의 제조방법, 이에 의해 제조된 다공성 나노구조체를 갖는 3차원 전극 및 센서, 다공성 나노구조체 제조장치 |
WO2019059423A1 (ko) * | 2017-09-19 | 2019-03-28 | 주식회사 라디안큐바이오 | 다공성 나노구조체의 제조방법, 이에 의해 제조된 다공성 나노구조체를 갖는 3차원 전극 및 센서, 다공성 나노구조체 제조장치 |
KR20200097162A (ko) * | 2019-02-07 | 2020-08-18 | 주식회사 라디안큐바이오 | 무전해도금법을 이용한 계층적 형상 조절이 용이한 금 나노구조체의 합성 및 전극에 증착하는 방법 및 장치 |
KR20210028928A (ko) * | 2019-09-05 | 2021-03-15 | 주식회사 하이코스킨 | 금 나노로드의 제조방법 |
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Cited By (5)
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KR20170130216A (ko) * | 2016-05-18 | 2017-11-28 | 주식회사 큐바이오센스 | 다공성 나노구조체의 제조방법, 이에 의해 제조된 다공성 나노구조체를 갖는 3차원 전극 및 센서, 다공성 나노구조체 제조장치 |
WO2019059423A1 (ko) * | 2017-09-19 | 2019-03-28 | 주식회사 라디안큐바이오 | 다공성 나노구조체의 제조방법, 이에 의해 제조된 다공성 나노구조체를 갖는 3차원 전극 및 센서, 다공성 나노구조체 제조장치 |
KR20200097162A (ko) * | 2019-02-07 | 2020-08-18 | 주식회사 라디안큐바이오 | 무전해도금법을 이용한 계층적 형상 조절이 용이한 금 나노구조체의 합성 및 전극에 증착하는 방법 및 장치 |
KR20210028928A (ko) * | 2019-09-05 | 2021-03-15 | 주식회사 하이코스킨 | 금 나노로드의 제조방법 |
CN115497819A (zh) * | 2022-09-02 | 2022-12-20 | 北京晨晶电子有限公司 | 三维电极的制备方法 |
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