DEVELOPMENT OF NANO-POROUS SILICON PHOTONIC SENSORS FORPESTICIDE MONITORING

Digest Journal of Nanomaterials and Biostructures

H. Bui¹ 

关键词: Porous silicon multilayer;    Photonic sensor;    Pesticides;    Atrazine degradation;    Electrochemical etching;   

DOI  :  

学科分类：生物技术

来源: Institute of Materials Physics

【 摘 要 】

We present the results of research and development of photonic sensors based on nanoporoussilicon (pSi), which are used for determination of low concentration of atrazine andalpha (α); beta (β) isomer endosulfan concentration in aquatic environment. The limit ofdetection (LOD) of sensors is of 1.4 pg.mL-1, 0.32 μg.mL-1 and 0.21 μg.mL-1 for atrazineand α- and β-endosulfan, respectively. Experiment shows that atrazine’s half-life in theaqueous phase ranges from 60 to 150 days in the humic acid and/or water, respectively.These pSi-sensors can contribute to the detection of persistent pesticides in the aqueousmedium with short measuring time and high sensitivity for improving agricultural andfood productions with sustainable environmental protection.

【 授权许可】

Unknown