Ultrasensitive photoelectrochemical detection of microcystin-LR based on hybridization chain reaction assisted exciton-plasmon interaction and enzymatic biocatalytic precipitation

Wei, Jie; Xie, Xun; Chang, Weidan; Yang, Zhuohong; Liu, Yingju

doi:10.1016/j.snb.2018.08.099

Cited by 28 publications

(10 citation statements)

References 45 publications

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“…In addition, the properties of the PEC sensors for MC-LR detection are presented in Table 4. 11,40,[165][166][167][168][169][170][171][172][173][174] As early as 2017, Liu et al developed a PEC aptasensor for MC-LR detection by using Z-scheme CdTe-Bi2S3 heterojunction as the photoelectrode materials. 165 When the MC-LR is captured by the aptamer on the surface of the photoelectrode, the photocurrent of the sensor decreases within the linear range of 1  10 -14 to 1  10 -10 mol/L, with a detection limit of 5  10 -15 mol/L (Fig.…”

Section: Toxinsmentioning

confidence: 99%

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

et al. 2022

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The establishment of rapid and efficient contamination detection methods in agricultural fields is of great significance for safeguarding agricultural production and human health, and for ensuring the healthy development of agricultural industries. As a booming analytical method, photoelectrochemical (PEC) sensors, which combine the advantages of electrochemical analysis and optical analysis, have received increasing research attention. Due to the complete separation of the excitation source (light) and the detection signal (current), the background signal of PEC sensors is greatly decreased, and their sensitivity is high. This review aims to cover the advances in PEC sensors for contamination analysis in agricultural fields over the past five years, including analysis of heavy metals, antibiotics, pesticides, and toxins. The future prospects in this field are also discussed.

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Section: Toxinsmentioning

confidence: 99%

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

et al. 2022

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“…It is worth mentioning that the steric hindrance effect induced by biocatalytic precipitation of insoluble product also has been introduced in sensing platforms for pollutants detection. [ 74 ] For example, horseradish peroxidase (HRP)‐mediated biocatalyzed oxidation of 4‐chloro‐1‐naphthol by H 2 O 2 to form insoluble and insulating benzo‐4‐chlorohexadienone has emerged as a typical strategy for steric hindrance effect based sensing platforms. [ 75 ]…”

Section: Functional Electroactive and Photoactive Materialsmentioning

confidence: 99%

Advanced Functional Electroactive and Photoactive Materials for Monitoring the Environmental Pollutants

Yan

Kannan

Doonyapisut

et al. 2020

Adv Funct Materials

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Functional materials with attractive electronic and photoelectronic properties show great promise in various fields. In recent decades, tremendous research efforts have been devoted to the design of photoactive and electroactive materials for qualitative and quantitative analysis of environmental pollutants. This review gives a concise overview on the fundamentals and recent research progress of functional material‐based electrochemical and photoelectrochemical technology for environmental pollutant monitoring. The rational design of functional photoactive and electroactive materials with promoted electrochemical properties and basic signaling strategies for electrochemical and photoelectrochemical sensors are presented. Based on these insights, very recent achievements for electrochemical and photoelectrochemical environmental pollutant sensors are summarized from the viewpoint of various functional materials. At last, critical challenges and future research perspectives in this field are proposed and discussed to provide a backdrop for future research.

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“…GDYO loaded with HRP would hamper the electron transfer and cause the recombination of e À /h + pairs; (2) The scavenger of AA would be obstructed by HRP-GDYO-Ab 2 and 4-CD, which decreased the hole trapping ability of AA; (3) HRP-GDYO-Ab 2 showed the relative absorbance at the range of < 450 nm ( Figure 2D). It would partially shade and adsorb the light irradiation on rGO-CdS, leading to a lower number of photo-induced electrons [40]; (4) 4-CD not only limited the electron transport between the solid and liquid interface but consumed photo-generated electron from CdS [40,41].…”

Section: Possible Mechanism For the Pec Sensormentioning

confidence: 99%

A Photoelectrochemical Immunosensor for Prostate Specific Antigen Detection Based on Graphdiyne Oxide Conjugated with Horseradish Peroxidase

Wang

Xiao

et al. 2020

Electroanalysis

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Graphdiyne (GDY) was a novel flat material with sp and sp2 hybridized carbon atoms. It exhibited good biocompatibility. The application of GDY in PEC immunosensor was very limited. Thus, a novel photoelectrochemical sensor for the sensitive detection of prostate specific antigen (PSA) was proposed by using GDY oxide (GDYO) conjugated with horseradish peroxidase (HRP) and secondary antibody for photocurrent signal inhibition. GDYO was prepared by oxidation of honeycomb‐like nanotubes composed of numerous GDY nanosheets. It showed high loading capacity for HRP and the catalytic activity of HRP could be remained. With reduced graphene oxide‐CdS (rGO‐CdS) as photoelectrochemical sensing platform, a sandwich‐type photoelectrochemical (PEC) immunosensor was thus fabricated. The immunosensor presented a wide linear concentration range of 10 fg mL−1–20.0 ng mL−1 with a detection limit (LOD) of 3.5 fg mL−1. Moreover, the PEC immunosensor displayed ideal reproducibility, stability, and selectivity, which was a promising platform for the detection of other important tumor targets.

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Ultrasensitive photoelectrochemical detection of microcystin-LR based on hybridization chain reaction assisted exciton-plasmon interaction and enzymatic biocatalytic precipitation

Cited by 28 publications

References 45 publications

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

Research progress on photoelectrochemical sensors for contamination analysis in agricultural fields

Advanced Functional Electroactive and Photoactive Materials for Monitoring the Environmental Pollutants

A Photoelectrochemical Immunosensor for Prostate Specific Antigen Detection Based on Graphdiyne Oxide Conjugated with Horseradish Peroxidase

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