Resonance energy transfer from CdTe quantum dots to gold nanorods using MWCNTs/rGO nanoribbons as efficient signal amplifier for fabricating visible-light-driven “on-off-on” photoelectrochemical acetamiprid aptasensor

Liu, Qian; Huan, Juan; Dong, Xiaopeng; Qian, Jing; Hao, Nan; You, Tianyan; Mao, Hanping; Wang, Kun

doi:10.1016/j.snb.2016.05.154

Cited by 61 publications

(13 citation statements)

References 36 publications

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“…However, many of the RET biosensing assays reported to date are signal-off (Zang et al, 2017). It is possible to design a signal transduction method based on RET where the photocurrent is initially reduced and is turned on following target capture and the resultant removal of the metal NP (Shen et al, 2015; Liu et al, 2016). Thrombin detection was demonstrated using this approach where AuNP-decorated SiO 2 nanoparticles were initially immobilized on CdSeTe QD-photoelectrodes through a dsDNA construct containing a thrombin-selective aptamer.…”

Section: Transduction Mechanismmentioning

confidence: 99%

Affinity-Based Detection of Biomolecules Using Photo-Electrochemical Readout

et al. 2019

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Detection and quantification of biologically-relevant analytes using handheld platforms are important for point-of-care diagnostics, real-time health monitoring, and treatment monitoring. Among the various signal transduction methods used in portable biosensors, photoelectrochemcial (PEC) readout has emerged as a promising approach due to its low limit-of-detection and high sensitivity. For this readout method to be applicable to analyzing native samples, performance requirements beyond sensitivity such as specificity, stability, and ease of operation are critical. These performance requirements are governed by the properties of the photoactive materials and signal transduction mechanisms that are used in PEC biosensing. In this review, we categorize PEC biosensors into five areas based on their signal transduction strategy: (a) introduction of photoactive species, (b) generation of electron/hole donors, (c) use of steric hinderance, (d) in situ induction of light, and (e) resonance energy transfer. We discuss the combination of strengths and weaknesses that these signal transduction systems and their material building blocks offer by reviewing the recent progress in this area. Developing the appropriate PEC biosensor starts with defining the application case followed by choosing the materials and signal transduction strategies that meet the application-based specifications.

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Section: Transduction Mechanismmentioning

confidence: 99%

Affinity-Based Detection of Biomolecules Using Photo-Electrochemical Readout

et al. 2019

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“…21 Therefore, there is an urgent need to develop a novel aptamer fluorescence sensor based on the “on–off–on” process. 22–24…”

Section: Introductionmentioning

confidence: 99%

A highly sensitive and selective “on–off–on” fluorescent aptamer sensor based on tea residue carbon quantum dots for the detection of sulfadiazine in honey

et al. 2022

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“…With increased globalization of neonicotinoid insecticides, acetamiprid has been utilized widely in agriculture products. − Acetamiprid could be absorbed mainly by the roots once applied and then transferred to various tissues of organisms, including flowers, leaves, and fruits . Under the perspective of pest control, acetamiprid seems to offer better efficacy of absorption over other insecticides and an advantage of the ease of application. , Nevertheless, from concerns of human exposures and ecological friendliness, acetamiprid will undoubtedly affect nontarget organisms that may contact with the plant production. , Acetamiprid has been banned in many countries due to pesticide resistance, threat to mammals, and severe environmental pollution . So, in our country, the effective analysis of acetamiprid is an urgent demand to protect people from possible hazards and safeguard the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

“…6 Under the perspective of pest control, acetamiprid seems to offer better efficacy of absorption over other insecticides and an advantage of the ease of application. 7,8 Nevertheless, from concerns of human exposures and ecological friendliness, acetamiprid will undoubtedly affect nontarget organisms that may contact with the plant production. 9,10 Acetamiprid has been banned in many countries due to pesticide resistance, threat to mammals, and severe environmental pollution.…”

Section: Introductionmentioning

confidence: 99%

Dual-Signaling Amplification Electrochemical Aptasensor Based on Hollow Polymeric Nanospheres for Acetamiprid Detection

Chen

Qiao

Liu

et al. 2019

ACS Appl. Mater. Interfaces

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In this work, we first reported a dual-signaling electrochemical aptasensor based on layer-by-layer template technology and catalytic amplification for acetamiprid detection. Herein, the signal probe of the ferrocene (Fc)based hollow polymeric nanospheres (Fc-HPNs) were prepared with repeated electrostatic adsorption between anionic poly(acrylic acid) and hyperbranched cationic polyethylenimine. In addition, ascorbic acid (AA) as an enhancer can catalyze the reduction of Fc-HPNs, which results in significant enhancement of the oxidation peak current of Fc-HPNs. Remarkably, the Fc-HPNs played dual roles: as nanocarriers to significantly increase the load amount of Fc and as nanoreducers to effectively catalyze reduction by AA for further signal amplification. Therefore, because of the special nanostructures of Fc-HPNs and the effective catalytic effect of AA, a dual-signaling electrochemical aptasensor was proposed. Surprisingly, this proposed assay for trace amounts of target detection exhibits excellent sensitivity with a linear range from 10 nM to 1 fM and a limit of detection down to 0.33 fM (S/N = 3), which opened a novel avenue and versatile strategy for monitoring of acetamiprid.

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Resonance energy transfer from CdTe quantum dots to gold nanorods using MWCNTs/rGO nanoribbons as efficient signal amplifier for fabricating visible-light-driven “on-off-on” photoelectrochemical acetamiprid aptasensor

Cited by 61 publications

References 36 publications

Affinity-Based Detection of Biomolecules Using Photo-Electrochemical Readout

Affinity-Based Detection of Biomolecules Using Photo-Electrochemical Readout

A highly sensitive and selective “on–off–on” fluorescent aptamer sensor based on tea residue carbon quantum dots for the detection of sulfadiazine in honey

Dual-Signaling Amplification Electrochemical Aptasensor Based on Hollow Polymeric Nanospheres for Acetamiprid Detection

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