Portable wireless intelligent sensing of ultra-trace phytoregulator α-naphthalene acetic acid using self-assembled phosphorene/Ti3C2-MXene nanohybrid with high ambient stability on laser induced porous graphene as nanozyme flexible electrode

Zhu, Xiaoyu; Lin, Lei; Wu, Ruimei; Zhu, Yifu; Sheng, Yingying; Nie, Ping; Liu, Peng; Xu, Lulu; Wen, Yangping

doi:10.1016/j.bios.2021.113062

Cited by 75 publications

(33 citation statements)

References 32 publications

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“…As the pH value increased from 4 to 8, the corresponding fitting equation was E pa = −0.033pH + 0.924 ( R 2 = 0.997). It can be inferred from the Nernst equation that two electrons and one proton were transferred in this oxidation process Figure S4 shows the fitting curve of peak current and concentration according to Michaelis–Menten equation.…”

Section: Resultsmentioning

confidence: 99%

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Shi

et al. 2022

ACS Sustainable Chem. Eng.

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Electrochemical sensing is an effective method for trace determination of specific substances. However, there are many active substances in plants, and the pH environment of plant organs varies. These factors directly affect the performance of electrochemical sensors and make it difficult to realize real-time detection accurately. Here, an online intelligent monitoring system for indole-3-acetic acid (IAA) was proposed, including reusable microsensor, portable electrochemical workstation, and online cloud platform. The microsensor was fabricated by depositing nanocomposites of nitrogen-doped carbon nanotubes/core–shell Au@Cu2O nanoparticles on the carbon fiber microelectrode. The IAA microsensor has a wide concentration range of 1–10 000 ng/mL and an ultralow detection limit of 10.8–57.8 pg/mL at a pH range of 4–8. The influence of different pH values on IAA detection was investigated. It is also revealed that the IAA microsensor has good anti-interference ability, repeatability, and stability which are suitable for real-time detection of IAA in living plants. Artificial neural network (ANN) algorithm is employed to establish the relationship between electrochemical signal and IAA concentration, and the ANN model is then configured in the online monitoring system to intelligently obtain the IAA concentration. Based on this system, real-time and online monitoring of the IAA concentration in a living cabbage stem was realized for a long time of 12 h. This study provides a feasible solution based on electrochemical sensing to monitor online the living plant for precision agriculture.

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Section: Resultsmentioning

confidence: 99%

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Shi

et al. 2022

ACS Sustainable Chem. Eng.

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“…One way to passivate BP against corrosion is to combine it with other conductive stable 2D materials such as MXene. In a study performed by Zhu and co-workers [ 80 ], titanium carbide MXene (Ti 3 C 2 -MXene) nanohybrid with two-dimensional phosphorene was prepared by electrostatic self-assembly. The nanomaterial then was mounted on laser-induced porous graphene and used as a nonenzymatic electrode for detection of phytoregulator α-naphthalene acetic acid (NAA) residues in agricultural products through a portable wireless electrochemical miniworkstation.…”

Section: Biomedical Applications Of 2d Nanomaterialsmentioning

confidence: 99%

“…The nanomaterial then was mounted on laser-induced porous graphene and used as a nonenzymatic electrode for detection of phytoregulator α-naphthalene acetic acid (NAA) residues in agricultural products through a portable wireless electrochemical miniworkstation. The sensor revealed a wide linear range of 0.02–40 μM and a low limit of detection (LOD) of 1.6 nM [ 80 ]. Antimonene with similar properties to BP also holds much attention for biosensor application [ 81 ].…”

Section: Biomedical Applications Of 2d Nanomaterialsmentioning

confidence: 99%

Two-Dimensional Nanomaterials beyond Graphene for Biomedical Applications

Derakhshi

Daemi

Shahini

et al. 2022

JFB

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Two-dimensional (2D) nanomaterials (e.g., graphene) have shown to have a high potential in future biomedical applications due to their unique physicochemical properties such as unusual electrical conductivity, high biocompatibility, large surface area, and extraordinary thermal and mechanical properties. Although the potential of graphene as the most common 2D nanomaterials in biomedical applications has been extensively investigated, the practical use of other nanoengineered 2D materials beyond graphene such as transition metal dichalcogenides (TMDs), topological insulators (TIs), phosphorene, antimonene, bismuthene, metal–organic frameworks (MOFs) and MXenes for biomedical applications have not been appreciated so far. This review highlights not only the unique opportunities of 2D nanomaterials beyond graphene in various biomedical research areas such as bioelectronics, imaging, drug delivery, tissue engineering, and regenerative medicine but also addresses the risk factors and challenges ahead from the medical perspective and clinical translation of nanoengineered 2D materials. In conclusion, the perspectives and future roadmap of nanoengineered 2D materials beyond graphene are outlined for biomedical applications.

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“…The efficient performance of the proposed LIG-based sensors can be attributed to the electrocatalytic properties and adsorption ability of graphene in porous form. LIG possesses a high electrochemical response due to its porous structure, which offers more sites for electrochemical redox reactions as compared to conventional planar graphene 32 . The porous structure also offers more edge defects than basal defects which can be related to the enhanced electrochemical activity.…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

Laser-Induced Graphene-Based Electrochemical Sensor for 4-Nitrophenol from Polyimide and Polyethersulfone Precursors

Wanjari

Kumar

Duttagupta

et al. 2022

Preprint

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Electrochemical sensors provide an excellent alternative for the in-situ detection of pollutants in water. 4-Nitrophenol is a critical pollutant owing to its acute toxicity and adverse health effects on humans and other living organisms. It is known to have carcinogenic, mutagenic, and teratogenic effects on aquatic life plants and human beings at very low concentrations. In this work, a facile electrochemical sensor for 4-Nitrophenol detection is proposed by laser-induced graphene (LIG) printed on polyethersulfone (PES) and polyimide (PI) films respectively. The laser irradiation of polymeric films results in 3D porous graphene structure formation that increases electron transfer rate as well as the electrochemically active surface area (EASA). This fabrication approach by laser-scribing provides a simple, fast, chemical-free, mask-free, and scalable solution to produce graphene-based electrochemical sensors for 4-Nitrophenol. Cyclic voltammetry is used as the electrochemical technique for the highly sensitive detection of 4-Nitrophenol. PES-based LIG sensors exhibit a higher sensitivity of 3793 µAmM-1cm-2 as compared to that of PI-based LIG sensors with a sensitivity of 3025 µAmM-1cm-2.

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Portable wireless intelligent sensing of ultra-trace phytoregulator α-naphthalene acetic acid using self-assembled phosphorene/Ti3C2-MXene nanohybrid with high ambient stability on laser induced porous graphene as nanozyme flexible electrode

Cited by 75 publications

References 32 publications

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Two-Dimensional Nanomaterials beyond Graphene for Biomedical Applications

Laser-Induced Graphene-Based Electrochemical Sensor for 4-Nitrophenol from Polyimide and Polyethersulfone Precursors

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Portable wireless intelligent sensing of ultra-trace phytoregulator α-naphthalene acetic acid using self-assembled phosphorene/Ti3C2-MXene nanohybrid with high ambient stability on laser induced porous graphene as nanozyme flexible electrode

Cited by 75 publications

References 32 publications

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu2O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu2O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Two-Dimensional Nanomaterials beyond Graphene for Biomedical Applications

Laser-Induced Graphene-Based Electrochemical Sensor for 4-Nitrophenol from Polyimide and Polyethersulfone Precursors

Contact Info

Product

Resources

About

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu₂O Nanoparticles/Carbon Fiber Electrochemical Microsensor