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뉴트라비딘 검출용 간이 진단키트의 성능향상을 위한 기본 플랫폼 선정
최선미(Sunmi Choi),김기영(Giyoung Kim),엄애선(Aeson Om),문지혜(Jihea Moon),박샛별(Saetbyeol Park),이상대(Sangdae Lee),김혁주(Hyuk Joo Kim) 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.4
This study was performed to optimize the basic platform of a lateral flow immunoassay. Improvement of the limit of detection (LOD) was evaluated according to the width of a nitrocellulose membrane with varying concentrations of analyte. The analyte, neutravidin was detected based on the avidin-biotin interaction. The antibody-Au nanoparticle conjugation was mostly stabled in a PBS buffer of pH 7.3. The optimal widths of a nitrocellulose membrane were 4 and 6 ㎜ considering the sample flow rate and signal strength of the test line on the membrane. The LOD of neutravidin was 0.001 ㎎/ml in the optimum conditions.