Nanocomposites (conducting polymer and nanoparticles) based electrochemical biosensor for the detection of environment pollutant: Its issues and challenges

Kumar, Harish; Kumari, Neetu; Sharma, Rahul

doi:10.1016/j.eiar.2020.106438

Cited by 74 publications

(36 citation statements)

References 154 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several reviews report on electrochemical sensing for water quality analysis [ 8 , 9 ]. Some of them focus on one type or a group of contaminants, such as the advances in nitrate monitoring in the environment and food products [ 10 ], the detection of phosphate -based on cobalt by potentiometric method and the progress of the development of electrochemical sensors for heavy metal ions [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

View full text Add to dashboard Cite

Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., pesticides, nitrate, nitrite, phosphorus, water hardeners, disinfectant, and other emergent contaminants (phenol, estrogen, gallic acid etc.). We focus on the influence of surface modification of the working electrodes by carbon nanomaterials, metallic nanostructures, imprinted polymers and evaluate the corresponding sensing performance. Especially for pesticides, which are challenging and need special care, we highlight biosensors, such as enzymatic sensors, immunobiosensor, aptasensors, and biomimetic sensors. We discuss the sensors’ overall performance, especially concerning real-sample performance and the capability for actual field application.

show abstract

Section: Introductionmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

View full text Add to dashboard Cite

show abstract

“…Concerning environmental applications, nanocomposite biosensors can be used to discover specific types of harmful extensions of materials that exist or dominate in the environment, thus determining various pollutants, toxic intermediates, and heavy metals in waste or water sources [119]. For the detection of heavy metals and pesticides, the use of modified electrodes and conducting polymer is necessary; this conjugation allows the immobilized enzyme and quantifies the problem compound [120]. Furthermore, NPs in biosensors can also be used to determine water quality parameters, such as biological oxygen demand, the detection of nitrates and phosphates, contributing to the data necessary for bioremediation processes.…”

Section: Biosensorsmentioning

confidence: 99%

Interaction between Filler and Polymeric Matrix in Nanocomposites: Magnetic Approach and Applications

et al. 2021

View full text Add to dashboard Cite

In recent years, polymer nanocomposites produced by combining nanofillers and a polymeric matrix are emerging as interesting materials. Polymeric composites have a wide range of applications due to the outstanding and enhanced properties that are obtained thanks to the introduction of nanoparticles. Therefore, understanding the filler-matrix relationship is an important factor in the continued growth of this scientific area and the development of new materials with desired properties and specific applications. Due to their performance in response to a magnetic field magnetic nanocomposites represent an important class of functional nanocomposites. Due to their properties, magnetic nanocomposites have found numerous applications in biomedical applications such as drug delivery, theranostics, etc. This article aims to provide an overview of the filler-polymeric matrix relationship, with a special focus on magnetic nanocomposites and their potential applications in the biomedical field.

show abstract

“…Esses biossensores devem apresentar além disso recursos como ser de fácil operação, apresentar resposta rápida, ser leve, robusto por natureza, suportar condições extremas de temperatura, umidade e pressão para que a operação possa funcionar em condições reais de campo, funcionar dia e noite com necessidade de baixa energia, mínima manutenção e supervisão e a técnica da coleta da amostra permita coletar facilmente amostras de água, solo e alimentos. 15 Para esse aprimoramento de sensibilidade, vários pesquisadores voltaram sua atenção para estratégias como os nanobiossensores. Os nanobiossensores poderiam ser utilizados para reconhecimento rápido de pesticidas, levando em consideração que a aplicação de biossensores no campo da nanotecnologia têm demonstrado melhor resultados para detecção de pesticidas.…”

Section: Sensores Eletroquímicosunclassified

“…Os estudos relacionados a atividade catalisadora e estabilidade de nanobiossensores não é bem explicada e precisa ser explorada em diversas áreas de pesquisa. 15,16 No caso da detecção de pesticidas os nanobiossensores fornecem um ponto atraente devido a suas vantagens como seletividade, sensibilidade, detecção rápida e resposta rápida. Com a ajuda de componentes biológicos, os nanossensores reagem com o alvo e o convertem em um sinal para reconhecimento rápido.…”

Section: Sensores Eletroquímicosunclassified

Electrochemical Sensors Based on Different Materials for the Determination of Pesticides

Alves¹,

Coelho²,

Pereira³

2020

Rev. Virtual Quim.

View full text Add to dashboard Cite

Pesticides are chemical or biological substances widely used in agriculture in order to protect crops from attack by pests. However, many pesticides have been banned due to the fact that their compositions provide the formation of cancerous tumors and the appearance of other problems for human health, which makes it necessary to control and quantify their residues in food, water and soil. Thus, the development of techniques for the quantification and control of pesticides and their residues in food, water and soil is of essential importance. Among techniques that can be used for the analysis of these pesticides, the development of electrochemical sensors is an area of great interest for electroanalytical, and its use becomes advantageous due to characteristics such as high sensitivity, selectivity and stability, in addition, few residues are generated, have moderate cost and easy automation. One of the purposes in which sensors are widely used is in the determination of substances of environmental interest, providing control over the use of pesticides and especially their residues, whose presence of certain amounts in food, water and soil can be considered harmful to the health of living beings and the environment. Thus, this review aims to show trends in the use and application of electrochemical sensors for the determination of various pesticides in real samples. Os pesticidas são substâncias químicas ou biológicas muito utilizadas na agricultura com o intuito de proteger as lavouras do ataque de pragas. Entretanto, muitos pesticidas tiveram o uso proibido devido ao fato de suas composições proporcionarem a formação de tumores cancerígenos e o surgimento de outros problemas para saúde humana, o que torna necessário o controle e quantificação de seus resíduos nos alimentos, água e solo. Dessa forma, o desenvolvimento de técnicas para a quantificação e controle de pesticidas e seus resíduos em alimentos, água e solo, é de essencial importância. Dentre técnicas que podem ser utilizadas para a análise desses pesticidas, o desenvolvimento de sensores eletroquímicos é uma área de grande interesse da eletroanalítica, e seu uso torna-se vantajoso devido características como alta sensibilidade, seletividade e estabilidade, além disso, são gerados poucos resíduos, apresentam custo moderado e fácil automação. Um dos propósitos em que os sensores são amplamente utilizados é na determinação de substâncias de interesse ambiental, proporcionando o controle sobre a utilização de pesticidas e principalmente de seus resíduos, cuja presença de determinadas quantidades em alimentos, água e solo podem ser considerados prejudiciais à saúde de seres vivos e ao meio ambiente. Assim, esta revisão tem por objetivo mostrar as tendências sobre o emprego e aplicação de sensores eletroquímicos para a determinação de variados defensivos agrícolas em amostras reais.

show abstract

Nanocomposites (conducting polymer and nanoparticles) based electrochemical biosensor for the detection of environment pollutant: Its issues and challenges

Cited by 74 publications

References 154 publications

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Interaction between Filler and Polymeric Matrix in Nanocomposites: Magnetic Approach and Applications

Electrochemical Sensors Based on Different Materials for the Determination of Pesticides

Contact Info

Product

Resources

About