A sensitive amperometric AChE-biosensor for organophosphate pesticides detection based on conjugated polymer and Ag-rGO-NH2 nanocomposite

Zhang, Pan; Sun, Tingting; Rong, Shengzhong; Zeng, Dongdong; Yu, Hao; Zhang, Ze; Dong, Chaofang; Pan, Hongzhi

doi:10.1016/j.bioelechem.2019.02.003

Cited by 106 publications

(28 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On a similar note, Zhang et al [150] developed a highly sensitive AChE amperometric biosensor based on conjugated polymer and Ag-rGO-NH 2 nanocomposite. Group used a slightly different method for electrode fabrication where authors first electrochemically polymerized 4, 7-di (furan-2-yl) benzothiadiazole on electrode surface followed by deposition of Ag-rGO-NH 2 nanocomposite.…”

Section: Graphene Oxide-based Nanohybrids As Pesticide Biosensorsmentioning

confidence: 99%

Graphene Oxide-Based Nanohybrids as Pesticide Biosensors: Latest Developments

Mogha¹

2020

Nanotechnology and the Environment

View full text Add to dashboard Cite

Graphene is the most significant two-dimensional nanomaterial with sp 2 hybridized carbon atoms in a honeycomb arrangement with an extremely high surface area, excellent electrical properties, high mechanical strength, and advantageous optical properties and is relatively easy to functionalize and mass produce. Various inorganic nanoparticles incorporated with graphene, such as gold, silver, and palladium nanoparticles are brought into sharp focus due to their catalytic, optical, electronic, and quantized charging/discharging properties. Graphene oxide-based nanohybrids are particularly well suited for biosensing applications and catalysis. Consequently, this area of research has grown to represent one of the largest classes within the scope of materials science and is rapidly becoming a key area in nanoscience and nanotechnology offering significant potential in the development of advanced materials in multiple and diverse applications. Here in this present chapter, synthesis, characterization of graphene oxide, and their nanohybrids are discussed thoroughly with their application in the field of pesticide biosensors. This chapter will help in a further understanding of graphene-based nanohybrids as a biosensing platform for their future applications in a sustainable environment.

show abstract

Section: Graphene Oxide-based Nanohybrids As Pesticide Biosensorsmentioning

confidence: 99%

Graphene Oxide-Based Nanohybrids as Pesticide Biosensors: Latest Developments

Mogha¹

2020

Nanotechnology and the Environment

View full text Add to dashboard Cite

show abstract

“…A sensitive amperometric acetylcholinesterase biosensor for OPs, using a 4,7-di (furan-2-yl) benzo [1,2,5] thiadiazole polymer, AgNPs and amine-functionalized rGO, was recently reported, as well. A linear range between 0.0206 and 2.06 µg•L −1 trichlorfon and an LOD value of 1 ng•L −1 were reported [131]. Mishra et al [132] proposed a disposable glove-based sensing platform to detect toxic chemicals, including nerve agents OP compounds.…”

Section: Chemical Warfare Agents (Cwas)mentioning

confidence: 99%

What Electrochemical Biosensors Can Do for Forensic Science? Unique Features and Applications

et al. 2019

View full text Add to dashboard Cite

This article critically discusses the latest advances in the use of voltammetric, amperometric, potentiometric, and impedimetric biosensors for forensic analysis. Highlighted examples that show the advantages of these tools to develop methods capable of detecting very small concentrations of analytes and provide selective determinations through analytical responses, without significant interferences from other components of the samples, are presented and discussed, thus stressing the great versatility and utility of electrochemical biosensors in this growing research field. To illustrate this, the determination of substances with forensic relevance by using electrochemical biosensors reported in the last five years (2015–2019) are reviewed. The different configurations of enzyme or affinity biosensors used to solve analytical problems related to forensic practice, with special attention to applications in complex samples, are considered. Main prospects, challenges to focus, such as the fabrication of devices for rapid analysis of target analytes directly on-site at the crime scene, or their widespread use and successful applications to complex samples of interest in forensic analysis, and future efforts, are also briefly discussed.

show abstract

“…According to the inhibition of OPS on AChE, even smaller concentrations of pesticide can be determined accurately. The sensitiveness and limit of detection of such biosensors is dependent on the amount of enzyme (Zhang et al, 2019 ), so enzyme immobilization on the electrode surface is a key step for biosensor activity.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Sensor Based on Biomass Porous Carbon/Covalent-Organic Frame Composites for Pesticide Residues Detection

et al. 2020

View full text Add to dashboard Cite

In this work, a covalent-organic framework with high carbon and nitrogen content microstructures (named COF-LZU1), assisted by 3D nitrogen-containing kenaf stem composites (represented as COF-LZU1/3D-KSCs), was constructed. Moreover, it was utilized for immobilizing acetylcholinesterase (AChE) for identifying trichlorfon, a commonly applied organophosphorus (OP) pesticide. The development of COF-LZU1/3D-KSC was affirmed by SEM, PXRD, and EDXS. The findings confirmed that COF-LZU1 microstructures were uniformly developed on 3D-KSC holes using a one-step synthesis approach, which can substantially enhance the effective surface area. Also, the COF-LZU1/3D-KSC composite contains not only the nitrogen element in COF-LZU1 but also the nitrogen element in 3D-KSC, which will greatly improve the biocompatibility of the material. The AChE/COF-LZU1/3D-KSC integrated electrode was fabricated by directly fixing a large amount of AChE on the composite. At the same time, the integrated electrode had good detection efficiency for trichlorfon. Improved stabilization, a wide-linear-range (0.2-19 ng/mL), and a lower detection limit (0.067 ng/mL) have been displayed by the sensor. Therefore, this sensor can be used as an important platform for the on-site detection of OP residue.

show abstract

A sensitive amperometric AChE-biosensor for organophosphate pesticides detection based on conjugated polymer and Ag-rGO-NH2 nanocomposite

Cited by 106 publications

References 36 publications

Graphene Oxide-Based Nanohybrids as Pesticide Biosensors: Latest Developments

Graphene Oxide-Based Nanohybrids as Pesticide Biosensors: Latest Developments

What Electrochemical Biosensors Can Do for Forensic Science? Unique Features and Applications

Preparation of a Sensor Based on Biomass Porous Carbon/Covalent-Organic Frame Composites for Pesticide Residues Detection

Contact Info

Product

Resources

About