Optical Sensor Assistant with Voltage Enrichment for Ultrasensitive Detection of Mercury Ions

[Image: see text] Voltage enrichment-assisted surface-enhanced resonance Raman scattering (SERRS) was employed for monitoring mercury(II) ions based on a nanoporous gold (NPG)/aptamer hybrid sensor. The hybrid sensor based on the coordination chemistry of thymine–Hg(2+)–thymine interaction and an ap...

Descripción completa

Detalles Bibliográficos
Autores principales: Zheng, Xuejian, Zhang, Ling, Huang, Luyi, Li, Wei, Ma, Chao, Song, Ruirui, Chen, Luyang, Zeng, Heping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648984/
https://www.ncbi.nlm.nih.gov/pubmed/31459762
http://dx.doi.org/10.1021/acsomega.8b03505
Descripción
Sumario:[Image: see text] Voltage enrichment-assisted surface-enhanced resonance Raman scattering (SERRS) was employed for monitoring mercury(II) ions based on a nanoporous gold (NPG)/aptamer hybrid sensor. The hybrid sensor based on the coordination chemistry of thymine–Hg(2+)–thymine interaction and an applied voltage that pushed mercury ions toward the NPG film improved both the speed and sensitivity of Hg(2+) ion detection. The detection limit can reach 0.1 pM, even in the aqueous solution containing 13 metal ions, and the sensor also possesses a fine reproducibility and stability, promising great potential in real-time sensing applications.

Ejemplares similares