A molecularly imprinted electrochemical sensing platform based on the signal amplification system fabricated with the theoretically optimized monomer for specific determination of formaldehyde

Fu, Donglei; Chen, Tao; Cheng, Yujun; Li, Aihua; Liu, Honglei; Cheng, Zhongfa; Li, Pengfei; Liu, Jingquan

doi:10.1016/j.snb.2021.130260

Cited by 30 publications

(5 citation statements)

References 58 publications

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“…Figure 4b displays the CV obtained in 0.1 M NaOH solutions containing different concentrations of formaldehyde. There is an obvious redox peak on the CV curves, and both the oxidation peak current density and reduction peak current density of Co−N/C@NiCo‐LDH NSAs/CC basically increase symmetrically with the increase of formaldehyde concentration from 0 mM to 7 mM, which is due to the conversion between M(OH) 2 and MOOH (M=Ni, Co) in alkaline electrolyte, [36] indicating that the electrode material has good reversibility [37] and the oxidation of HCHO is a quasi‐reversible process [38,39] …”

Section: Resultsmentioning

confidence: 96%

“…There is an obvious redox peak on the CV curves, and both the oxidation peak current density and reduction peak current density of CoÀ N/C@NiCo-LDH NSAs/CC basically increase symmetrically with the increase of formaldehyde concentration from 0 mM to 7 mM, which is due to the conversion between M(OH) 2 and MOOH (M=Ni, Co) in alkaline electrolyte, [36] indicating that the electrode material has good reversibility [37] and the oxidation of HCHO is a quasi-reversible process. [38,39] The effect of different concentrations of NiCo-LDH on the electrocatalytic oxidation of formaldehyde was investigated using CV and the results are presented in Figure S6.…”

Section: Resultsmentioning

confidence: 96%

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NiCo‐LDH coupled with 2D ZIF‐derived Co nitrogen doped carbon nanosheet arrays as a self‐supporting electrocatalyst for detection of formaldehyde

Ling,

Xu,

et al. 2024

Chemistry A European J

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Formaldehyde is susceptible to illegal addition to foodstuffs to extend their shelf life due to its antimicrobial, preservative and bleaching properties. In this study, a self‐supporting “nanosheet on nanosheet” arrays electrocatalyst with core‐shell heterostructure was prepared in situ by coupling NiCo layer double hydroxide with 2D ZIF derived Co‐nitrogen‐doped porous carbon on carbon cloth (Co‐N/C@NiCo‐LDH NSAs/CC). Co‐N/C nanosheet arrays act as a scaffold core with good electrical conductivity, providing more NiCo‐LDH nucleation sites to avoid NiCo‐LDH agglomeration, thus having fast mass/charge transfer performance. While the NiCo‐LDH nanosheet arrays shell with high specific surface area provide more active sites for electrochemical reactions. As an electrocatalytic sensing electrode, Co‐N/C@NiCo‐LDH NSAs/CC has a wide linear range of 1 μM to 13 mM for formaldehyde detection, and the detection limit is 82 nM. Besides, the sensor has been applied to the detection of formaldehyde in food samples with satisfactory results.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 96%

NiCo‐LDH coupled with 2D ZIF‐derived Co nitrogen doped carbon nanosheet arrays as a self‐supporting electrocatalyst for detection of formaldehyde

Ling,

Xu,

et al. 2024

Chemistry A European J

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“…This electrode exhibited high electrical conductivity and excellent catalytic activity, enabling the sensitive quantification of formaldehyde. Liu et al presented the development of a molecularly imprinted electrochemical sensing platform tailored for the specific detection of formaldehyde [ 89 ]. They immobilized gold nanoclusters (Au NCs) onto the surface of polydopamine nanospheres (pDA NPs) to create a pDA@Au NCs composite material.…”

Section: Electrochemical Sensors For Formaldehydementioning

confidence: 99%

Recent Advances in Electrochemical Sensors for Formaldehyde

Yang,

Hao,

Huang

et al. 2024

Molecules

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Formaldehyde, a ubiquitous indoor air pollutant, plays a significant role in various biological processes, posing both environmental and health challenges. This comprehensive review delves into the latest advancements in electrochemical methods for detecting formaldehyde, a compound of growing concern due to its widespread use and potential health hazards. This review underscores the inherent advantages of electrochemical techniques, such as high sensitivity, selectivity, and capability for real-time analysis, making them highly effective for formaldehyde monitoring. We explore the fundamental principles, mechanisms, and diverse methodologies employed in electrochemical formaldehyde detection, highlighting the role of innovative sensing materials and electrodes. Special attention is given to recent developments in nanotechnology and sensor design, which significantly enhance the sensitivity and selectivity of these detection systems. Moreover, this review identifies current challenges and discusses future research directions. Our aim is to encourage ongoing research and innovation in this field, ultimately leading to the development of advanced, practical solutions for formaldehyde detection in various environmental and biological contexts.

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“…41 MIPs possess excellent attributes including an alternative to other biorecognition elements, highly specific and selective recognition for target molecules, robustness, and high stability. 42 MIPs are capable of differentiating the interfering species and target analyte with high precision by hosting dedicated recognition sites in the cavity. The interaction of the template may involve non-covalent bonding via van der Waals, hydrogen, ion coordination, hydrophobic coulombic forces, or even reversible covalent bonds.…”

Section: Molecularly Imprinted Polymers: the Artificial Antibodiesmentioning

confidence: 99%

MXene-modified molecularly imprinted polymers as an artificial bio-recognition platform for efficient electrochemical sensing: progress and perspectives

Singhal

Yadav

Sadique

et al. 2022

Phys. Chem. Chem. Phys.

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A molecularly imprinted electrochemical sensing platform based on the signal amplification system fabricated with the theoretically optimized monomer for specific determination of formaldehyde

Cited by 30 publications

References 58 publications

NiCo‐LDH coupled with 2D ZIF‐derived Co nitrogen doped carbon nanosheet arrays as a self‐supporting electrocatalyst for detection of formaldehyde

NiCo‐LDH coupled with 2D ZIF‐derived Co nitrogen doped carbon nanosheet arrays as a self‐supporting electrocatalyst for detection of formaldehyde

Recent Advances in Electrochemical Sensors for Formaldehyde

MXene-modified molecularly imprinted polymers as an artificial bio-recognition platform for efficient electrochemical sensing: progress and perspectives

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