인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Electrochemical signal current can be enhanced by increasing surface area of the electrode or integrating nanopores at the electrode surface. However, complex processes have limited wide-application of nanoporous electrodes. We present a simple method enhancing redox current signal of electrochemcal sensors based on carbon electrodes using oxygen plasm treatment. The carbon electrodes are fabricated using carbon-MEMS process consisting of conventional photolithography and pyrolysis. Micro-sized pores and wrinkles are generated on the surface of negative photoresist structures patterned using an oxygen plasma treatment ahead of pyrolysis. The porous polymer structures were converted into carbon electrodes with nano-sized wrinkles and nanopores via pyrolysis. The geometry of the carbon electrode is determined by the photolithography so that complex shapes of micro/sub-micrometer-sized carbon electrodes can be fabricated. Moreover, the sizes of the carbon nanopores can be controlled depending on the conditions of the oxygen plasma treatment and pyrolysis processes. The electrochemical currents of disc carbon electrodes were enhanced up to 2.6 times compared to a bare carbon electrode by just applying a 200s oxygen plasma treatment before pyrolysis. We expect this novel nanoporous carbon electrodes to be used in a variety of applications of bio-sensors such as sandwich immuno-assay, enzyme-based sensors and non-enzymatic bio-sensors.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.