Biosensors and their applications in detection of organophosphorus pesticides in the environment

Abstract

This review discusses the past and recent advancements of biosensors focusing on detection of organophosphorus pesticides (OPs) due to their exceptional use during the last decades. Apart from agricultural benefits, OPs also impose adverse toxicological effects on animal and human population. Conventional approaches such as chromatographic techniques used for pesticide detection are associated with several limitations. A biosensor technology is unique due to the detection sensitivity, selectivity, remarkable performance capabilities, simplicity and on-site operation, fabrication and incorporation with nanomaterials. This study also provided specifications of the most OPs biosensors reported until today based on their transducer system. In addition, we highlighted the application of advanced complementary materials and analysis techniques in OPs detection systems. The availability of these new materials associated with new sensing techniques has led to introduction of easy-to-use analytical tools of high sensitivity and specificity in the design and construction of OPs biosensors. In this review, we elaborated the achievements in sensing systems concerning innovative nanomaterials and analytical techniques with emphasis on OPs.

Comparative Assessment of Affinity-Based Techniques for Oriented Antibody Immobilization towards Immunosensor Performance Optimization

“…Ιmmunosensors are affinity-based assays that feature prominently as effective tools for the quantification of the amount of antibodies or antigens in complex samples. Irrespectively of whether it is the antibody or the antigen that is immobilized on the transducer surface, the strong binding forces that develop allow the detection of the target analyte with high sensitivity and specificity [1], making them very attractive for applications in a diverse range of fields such as food safety [2,3], medical diagnostics [4,5], and environmental monitoring [6,7].…”

Economic evaluation of using pesticides to control cutaneous leishmaniasis in Isfahan

“…Based on previous studies, exposure to pesticides can significantly increase the likelihood of developing various cancers and may cause many health problems in citizens. [2324252627] Thus, an economic analysis from a societal perspective should be considered in the future research.…”

<p>An Electrochemical Aptasensor Platform Based on Flower-Like Gold Microstructure-Modified Screen-Printed Carbon Electrode for Detection of Serpin A12 as a Type 2 Diabetes Biomarker</p>

“…13 The aptasensors are a combined platform of nucleic acids and electrochemical or optical transducers that monitor aptamer-analyte molecule interactions. 14 Various techniques and materials such as Ag, Hg, Au, and glassy carbon have been used to design and modify the surface of the electrode in electrochemical devices. Point-of-care testing (POCT) is a more interesting technique than traditional diagnostic methods due to several benefits, such as wide availability for diagnosis, quick quantification, ease of access, and minimum necessary sampling quantities.…”