Advances of nanobiosensors and its application in atrazine detection in water: A review

Atrazine is an herbicide represented by a triazine ring substituted with chlorine, ethylamine and isopropylamine, which makes it recalcitrant for biological degradation in environment. Due to be very used in agriculture, mainly in the control of corn crop weeds, it ends up remaining in the environment for a long time and becoming one of the factors responsible for the contamination of soil, air and water. New cheaper detection methods, with less time to analyze and more effective, have been studied to improve the detection of this analyte. The nanotechnology area has shown great advances, such as the development of nanobiosensors through sensor layers, to detect the presence of herbicides in water. Based on these facts, this paper provides a review of the most recent works in nanobiosensor used for atrazine detection, with focus on the applications in water matrices.