Electrochemically-assisted deposition of toluidine blue-functionalized metal-organic framework films for electrochemical immunosensing of Indole-3-acetic acid

Su, Zhaohong; Tang, Daili; Liu, Junjie; Yang, Xiaolan; Xu, Siyu; Xu, Wenjing; Zhou, Yuqing; Xu, Mingyang; Yi, Jun; Jiang, Hongmei; Shao, Yuanhua

doi:10.1016/j.jelechem.2020.114855

Cited by 25 publications

(11 citation statements)

References 35 publications

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“…More recently, various excellent works about CDS have been done in many fields, which popularized CDS in varying degrees. [24,[70][71][72][73][74][75][76][77] For example, Antonio et al synthesized Ti III -MIL-100 and Ti III -MIL-101 containing coordinatively unsaturated and redox-active metal cations for the first time by using CDS. [70] Besides, Ji et al firstly prepared Cu-MOFs via CDS at different negative potentials and proved that they possessed good oxidation signal responses to organics containing nitrogen heterocyclic or hydroxyl.…”

Section: Cathode Deposition Synthesismentioning

confidence: 99%

“…[73] Similarly, Su et al also established an electrochemical immunosensor via CDS. They incorporated toluidine blue (TB) into the MOF and electrodeposited it on the working electrode as a sensing platform for the efficient determination of indole-3-acetic acid (IAA) [74] In addition, Shokrollahi et al synthesized Cu-MOFs as SPME fibers via CDS. They chose anodized stainless steel wires as substrates on which they electrodeposited Cu-MOF and utilized them as stationary phases for headspace solid-phase microextraction (HS-SPME).…”

Section: Cathode Deposition Synthesismentioning

confidence: 99%

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Electrochemical Synthesis Methods of Metal‐Organic Frameworks and Their Environmental Analysis Applications: A Review

Ren

Wei

2022

ChemElectroChem

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ing new MOFs and developing novel eco-friendly electrochemical synthesis methods for MOFs' application in environmental analysis. Moreover, the applications of MOFs in environmental analysis field in recent years were comprehensively illustrated and the advantages and disadvantages of electrochemical synthesis methods to prepare MOFs as environmental analytical nanomaterials were evaluated. Finally, some suggestions for the optimization of electrochemical synthesis methods for MOFs and their future opportunities in environmental analytical applications were proposed.

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Section: Cathode Deposition Synthesismentioning

confidence: 99%

Section: Cathode Deposition Synthesismentioning

confidence: 99%

Electrochemical Synthesis Methods of Metal‐Organic Frameworks and Their Environmental Analysis Applications: A Review

Ren

Wei

2022

ChemElectroChem

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“…Plant physiological processes are usually the result of network regulation of a variety of phytohormones [ 2 ]; thus, it is necessary to develop an effective method for simultaneous detection of phytohormones. At present, the established methods for phytohormone detection mainly include chromatography [ 3 , 4 ], liquid chromatography tandem mass spectrometry [ 5 ], capillary electrophoresis [ 6 ], fluorescence method [ 7 ], and electrochemical method [ 8 , 9 , 10 ], among others. Among the many detection methods, the electrochemical method is favored because of its convenient operation, inexpensive equipment, rapid response, and high sensitivity [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Electrochemical Sensing of Indole-3-Acetic Acid and Salicylic Acid on Poly(L-Proline) Nanoparticles–Carbon Dots–Multiwalled Carbon Nanotubes Composite-Modified Electrode

Kuang

Fan

et al. 2022

Sensors

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Sensitive simultaneous electrochemical sensing of phytohormones indole-3-acetic acid and salicylic acid based on a novel poly(L-Proline) nanoparticles–carbon dots composite consisting of multiwalled carbon nanotubes was reported in this study. The poly(L-Proline) nanoparticles–carbon dots composite was facilely prepared by the hydrothermal method, and L-Proline was used as a monomer and carbon source for the preparation of poly(L-Proline) nanoparticles and carbon dots, respectively. Then, the poly(L-Proline) nanoparticles–carbon dots–multiwalled carbon nanotubes composite was prepared by ultrasonic mixing of poly(L-Proline) nanoparticles–carbon dots composite dispersion and multiwalled carbon nanotubes. Scanning electron microscope, transmission electron microscope, Fourier transform infrared spectroscopy, ultraviolet visible spectroscopy, energy dispersive spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy, and linear sweep voltammetry were used to characterize the properties of the composite. poly(L-Proline) nanoparticles were found to significantly enhance the conductivity and sensing performance of the composite. Under optimal conditions, the composite-modified electrode exhibited a wide linear range from 0.05 to 25 μM for indole-3-acetic acid and from 0.2 to 60 μM for salicylic acid with detection limits of 0.007 μM and 0.1 μM (S/N = 3), respectively. In addition, the proposed sensor was also applied to simultaneously test indole-3-acetic acid and salicylic acid in real leaf samples with satisfactory recovery.

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“…As a good candidate, electrochemical sensing technology has been developed to detect IAA due to the advantages of high sensitivity, low detection limit, and fast response. − In real sample applications presented in previous research, most IAA detection was performed by employing electrochemical sensors to detect IAA in the extracts of plant tissues in vitro. During the extraction process, however, IAA was easily decomposed by light irradiation, oxidation, or heating, resulting in partial loss . Recently, electrochemical sensors were developed to harvest IAA levels in living seedlings for more precise detection .…”

Section: Introductionmentioning

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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Electrochemically-assisted deposition of toluidine blue-functionalized metal-organic framework films for electrochemical immunosensing of Indole-3-acetic acid

Cited by 25 publications

References 35 publications

Electrochemical Synthesis Methods of Metal‐Organic Frameworks and Their Environmental Analysis Applications: A Review

Electrochemical Synthesis Methods of Metal‐Organic Frameworks and Their Environmental Analysis Applications: A Review

Simultaneous Electrochemical Sensing of Indole-3-Acetic Acid and Salicylic Acid on Poly(L-Proline) Nanoparticles–Carbon Dots–Multiwalled Carbon Nanotubes Composite-Modified Electrode

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

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Electrochemically-assisted deposition of toluidine blue-functionalized metal-organic framework films for electrochemical immunosensing of Indole-3-acetic acid

Cited by 25 publications

References 35 publications

Electrochemical Synthesis Methods of Metal‐Organic Frameworks and Their Environmental Analysis Applications: A Review

Electrochemical Synthesis Methods of Metal‐Organic Frameworks and Their Environmental Analysis Applications: A Review

Simultaneous Electrochemical Sensing of Indole-3-Acetic Acid and Salicylic Acid on Poly(L-Proline) Nanoparticles–Carbon Dots–Multiwalled Carbon Nanotubes Composite-Modified Electrode

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

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Product

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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