Split-type cascaded silver etching for “on-super off” PEC-EC dual-mode immunosensing of α-SynO

Gao, Yao; Zhang, Xuechen; Yan, Jianyue; Guan, Qing‐Lin; Ye, Xing; Song, Wenbo

doi:10.1016/j.snb.2022.131449

Cited by 10 publications

(5 citation statements)

References 29 publications

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“…The dual-mode sensing strategy inherently integrates two switchable detection modes, exhibiting superior flexibility in handling diverse detection conditions . It has demonstrated greater effectiveness in the early prevention and diagnosis of diseases or in the detection of foodborne bacteria screening systems than those of single-mode analysis. − At present, some typical dual-mode sensing strategies have been developed, such as the development of a new protocol of “on-super off” photoelectrochemical (PEC)–electrochemistry (EC) dual-mode immunoassay for α-synuclein monomer self-associates into neurotoxic oligomers . The low limit of detection (LOD) and wide detection range of PEC and EC exceed most of the methods reported to date, with accurate and reliable performance, proving its excellent potential for biological analysis and early disease diagnosis.…”

Section: Introductionmentioning

confidence: 99%

“…14−16 At present, some typical dualmode sensing strategies have been developed, such as the development of a new protocol of "on-super off" photoelectrochemical (PEC)−electrochemistry (EC) dual-mode immunoassay for α-synuclein monomer self-associates into neurotoxic oligomers. 17 The low limit of detection (LOD) and wide detection range of PEC and EC exceed most of the methods reported to date, with accurate and reliable performance, proving its excellent potential for biological analysis and early disease diagnosis. Another example is the SERS and EC dual-mode detection platforms based on WO 3 − SnO 2 nanoflake arrays.…”

Section: ■ Introductionmentioning

confidence: 99%

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PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C₃N₄/MXene-Au NPs Accelerator

Liu,

Zhao,

Liu

et al. 2023

Anal. Chem.

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In this paper, a photoelectrochemical (PEC)-surfaceenhanced Raman scattering (SERS) dual-mode biosensor is constructed coupled with a dual-recognition binding-induced DNA walker with a carbon nitride nanosheet (C 3 N 4 )/MXene-gold nanoparticles (C/M-Au NPs) accelerator, which is reliable and capable for sensitive and accurate detection of Staphylococcus aureus (S. aureus). Initially, a photoactive heterostructure is formed by combining C 3 N 4 and MXene via a simple electrostatic self-assembly as they possess well-matched band-edge energy levels. Subsequently, in situ growth of gold nanoparticles on the formed surface results in better PEC performance and SERS activity, because of the synergistic effects of surface plasmon resonance and Schottky barrier. Furthermore, a three-dimensional, bipedal, and dualrecognition binding-induced DNA walker is introduced with the formation of Pb 2+ -dependent DNAzyme. In the presence of S. aureus, a significant quantity of intermediate DNA (I-DNA) is generated, which can open the hairpin structure of Methylene Bluetagged hairpin DNA (H-MB) on the electrode surface, thereby enabling the switch of signals for the quantitative determination of S. aureus. The constructed PEC-SERS dual-mode biosensor that can be mutually verified under one reaction effectively addresses the problem of the low detection accuracy of traditional sensors. Experimental results revealed that the effective combination of PEC and SERS is achieved for amplification detection of S. aureus with a detection range of 5−10 8 CFU/mL (PEC) and 10−10 8 CFU/mL (SERS), and a detection of limit of 0.70 CFU/mL (PEC) and 1.35 CFU/mL (SERS), respectively. Therefore, this study offers a novel and effective dual-mode sensing strategy, which has important implications for bioanalysis and health monitoring.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C₃N₄/MXene-Au NPs Accelerator

Liu,

Zhao,

Liu

et al. 2023

Anal. Chem.

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“…To address these issues, dual-mode sensing platforms have been developed based on different response mechanisms and relatively independent signal transductions. 20 The dual-mode sensing strategies not only have the inherent characteristics of each response mode, but also have no interference between the different signal pathways. While providing detection results in different response modes for mutual validation, the dual-mode sensing strategies effectively improve the accuracy and reliability of detection.…”

Section: Introductionmentioning

confidence: 99%

A dual-mode “signal-on” split-type aptasensor for bisphenol A via target-induced hybridization chain reaction amplification

Wu,

Wang,

et al. 2023

Analyst

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“…Thus, a crucial aspect of a prominent PEC sensor is the selecting of an excellent photoelectrode, which will control the sensor’s sensitivity, detection limit (LOD), etc. [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

CdS-Modified TiO2 Nanotubes with Heterojunction Structure: A Photoelectrochemical Sensor for Glutathione

Huo

Zhang

et al. 2022

Nanomaterials

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The formation of heterojunction structures can effectively prevent the recombination of photogenerated electron–hole pairs in semiconductors and result in the enhancement of photoelectric properties. Using TiO2 nanotubes (prepared using the hydrothermal-impregnation method) as carriers, CdS-TiO2NTs were fabricated as a photoelectrochemical (PEC) sensor, which can be used under visible light and can exhibit good PEC performance due to the existence of the heterojunction structure. The experimental results show that the prepared CdS-TiO2NTs electrode had a linear response to 2–16 mM glutathione (GSH). The sensor’s sensitivity and detection limit (LOD) were 102.9 µA·mM−1· cm−2 and 27.7 µM, respectively. Moreover, the biosensor had good stability, indicating the potential application of this kind of heterojunction PEC biosensor.

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Split-type cascaded silver etching for “on-super off” PEC-EC dual-mode immunosensing of α-SynO

Cited by 10 publications

References 29 publications

PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C₃N₄/MXene-Au NPs Accelerator

PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C₃N₄/MXene-Au NPs Accelerator

A dual-mode “signal-on” split-type aptasensor for bisphenol A via target-induced hybridization chain reaction amplification

CdS-Modified TiO2 Nanotubes with Heterojunction Structure: A Photoelectrochemical Sensor for Glutathione

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Split-type cascaded silver etching for “on-super off” PEC-EC dual-mode immunosensing of α-SynO

Cited by 10 publications

References 29 publications

PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C3N4/MXene-Au NPs Accelerator

PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C3N4/MXene-Au NPs Accelerator

A dual-mode “signal-on” split-type aptasensor for bisphenol A via target-induced hybridization chain reaction amplification

CdS-Modified TiO2 Nanotubes with Heterojunction Structure: A Photoelectrochemical Sensor for Glutathione

Contact Info

Product

Resources

About

PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C₃N₄/MXene-Au NPs Accelerator

PEC-SERS Dual-Mode Detection of Foodborne Pathogens Based on Binding-Induced DNA Walker and C₃N₄/MXene-Au NPs Accelerator