Challenges in the design of electrochemical sensor for glyphosate-based on new materials and biological recognition

• Type: Another Publication in an International Scientific Journal
• Date: 2021

Authors

Zambrano Intriago, LA (Author) Other; Amorim, CG (Author) FFUP; Rodriguez Diaz, JM (Author) Other; Araujo, AN (Author) FFUP; Montenegro, MCBSM (Author) FFUP

Journal

Title: Science of the Total Environment

Vol. 793

ISSN: 0048-9697

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 37 Citations

Scopus - 38 Citations

Other information

Authenticus ID: P-00V-3R1

DOI: 10.1016/j.scitotenv.2021.148496

Abstract (EN): Glyphosate (GLY) is the main ingredient in the weed killer Roundup and the most widely used pesticide in the world. Studies of the harmful effects of GLY on human health began to become more wide-ranging after 2015. GLY is listed by the International Agency for Research on Cancer (IARC) as a carcinogenic hazard to humans. Moreover, GLY has the property to complex with transition metals and are stable for long periods, being considered a high-risk element for different matrices, such as environmental (soil and water) and food (usually genetically modified crops). Since that, it was noticed an increment in the development of new analytical methods for its determination in different matrices like food, environmental and biological fluids. Noteworthy, the application of electrochemical techniques for downstream detection sparked interest due to the ability to minimize or eliminate the use of polluting chemicals, using simple and affordable equipment. This work aims to review the contribution of the electroanalytical methods for the determination of GLY in different food and environmental matrices. Parameters such as the electrochemical transduction techniques based on the electrical measurement signals, receptor materials for electrodes preparation, and the detection mechanisms are described in this review. The literature review shows that the electrochemical sensors are powerful detection system that can be improved by their design and by their portability to fulfil the needs of the GLY determination in laboratory benches, or even in situ analysis.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17