Department of Materials Sciences and Engineering, Yonsei University, 50 Yonsei-Ro, Seo-dae-mun-gu, Seoul 120-749, Republic of Korea; Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea.
Department of Materials Sciences and Engineering, Yonsei University, 50 Yonsei-Ro, Seo-dae-mun-gu, Seoul 120-749, Republic of Korea.
Biosens Bioelectron. 2017 Jun 15;92:221-228. doi: 10.1016/j.bios.2017.02.021. Epub 2017 Feb 16.
The direct in situ synthesis of cadmium sulfide (CdS) nanowires (NWs) was presented by direct synthesis of CdS NWs on the gold surface of an interdigitated electrode (IDE). In this work, we investigated the effect of a strong oxidant on the surfaces of the CdS NWs using X-ray photoelectron spectroscopy, transmission electron microscopy, and time-of-flight secondary ion mass spectrometry. We also fabricated a parylene-C film as a surface passivation layer for in situ-synthesized CdS NW photosensors and investigated the influence of the parylene-C passivation layer on the photoresponse during the coating of parylene-C under vacuum using a quartz crystal microbalance and a photoanalyzer. Finally, we used the in situ-synthesized CdS NW photosensor with the parylene-C passivation layer to detect the chemiluminescence of horseradish peroxidase and luminol and applied it to medical detection of carcinoembryonic antigen.
通过在叉指电极（IDE）的金表面上直接合成硫化镉（CdS）纳米线（NWs），实现了 CdS NWs 的直接原位合成。在这项工作中，我们使用 X 射线光电子能谱、透射电子显微镜和飞行时间二次离子质谱研究了强氧化剂对 CdS NWs 表面的影响。我们还制造了聚对二甲苯-C 薄膜作为原位合成的 CdS NW 光传感器的表面钝化层，并研究了在真空下涂覆聚对二甲苯-C 期间聚对二甲苯-C 钝化层对光响应的影响，使用石英晶体微天平 (QCM) 和光分析仪。最后，我们使用带有聚对二甲苯-C 钝化层的原位合成的 CdS NW 光传感器来检测辣根过氧化物酶和鲁米诺的化学发光，并将其应用于癌胚抗原的医学检测。
