A conductometric enzymatic methanol sensor based on polystyrene - PAMAM dendritic polymer electrospun nanofibers

Razmshoar, Pouyan; Besbes, Fatma; Madaci, Anis; Mlika, R.; Bahrami, S. Hajir; Rabiee, Mohammad; Martin, Marie; Errachid, Abdelhamid; Jaffrezic‐Renault, Nicole

doi:10.1016/j.talanta.2023.124630

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…Razmshoar et al [ 35 ] created a conductometric enzymatic methanol sensor by grafting alcohol oxidase (AOx) onto electrospun polystyrene-poly(amidoamine) dendritic polymer nanofibers. To form a strong link between AOx and the surface of nanofibers, glutaraldehyde coupling was used to form a bond between the amine groups of the AOx enzyme and the nanofiber dendritic polymer groups ( Figure 6 a).…”

Section: The Immobilization Methods Of Enzymementioning

confidence: 99%

“… ( a ) The schematic of preparation alcohol oxidase-based methanol sensor; ( b ) FTIR spectra of PS-PAMAM, GA-PS-PAMAM, and AOX/PS-PAMAM ESNFs samples; ( c ) the response of sensor to a series concentration of gas-phase methanol [ 35 ]; ( d ) The schematic diagram of the process for preparing paper-based ethanol biosensor; ( e ) The calibration plot of ethanol concentration vs. current (The inset shows the chronoamperometric records with the concentration increase from 0–12 mM); ( f ) the evaluation of shelf-life at 4 °C of the ethanol sensor, fresh biosensor (black bar), 1 week (red bar), 2 weeks (green bar), 3 weeks (blue bar) and 4 weeks (violet bar) [ 19 ]. …”

Section: Figurementioning

confidence: 99%

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Design and Construction of Enzyme-Based Electrochemical Gas Sensors

Zhang,

Chen,

Xing

et al. 2023

Molecules

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The demand for the ubiquitous detection of gases in complex environments is driving the design of highly specific gas sensors for the development of the Internet of Things, such as indoor air quality testing, human exhaled disease detection, monitoring gas emissions, etc. The interaction between analytes and bioreceptors can described as a “lock-and-key”, in which the specific catalysis between enzymes and gas molecules provides a new paradigm for the construction of high-sensitivity and -specificity gas sensors. The electrochemical method has been widely used in gas detection and in the design and construction of enzyme-based electrochemical gas sensors, in which the specificity of an enzyme to a substrate is determined by a specific functional domain or recognition interface, which is the active site of the enzyme that can specifically catalyze the gas reaction, and the electrode–solution interface, where the chemical reaction occurs, respectively. As a result, the engineering design of the enzyme electrode interface is crucial in the process of designing and constructing enzyme-based electrochemical gas sensors. In this review, we summarize the design of enzyme-based electrochemical gas sensors. We particularly focus on the main concepts of enzyme electrodes and the selection and design of materials, as well as the immobilization of enzymes and construction methods. Furthermore, we discuss the fundamental factors that affect electron transfer at the enzyme electrode interface for electrochemical gas sensors and the challenges and opportunities related to the design and construction of these sensors.

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Section: The Immobilization Methods Of Enzymementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Design and Construction of Enzyme-Based Electrochemical Gas Sensors

Zhang,

Chen,

Xing

et al. 2023

Molecules

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Carbon-Based Nanomaterials Decorated Electrospun Nanofibers in Biosensors: A Review

Kilic,

Gelen,

Er Zeybekler

et al. 2023

ACS Omega

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Nanomaterials have revolutionized scientific research due to their exceptional physical and chemical capabilities. Carbon-based nanomaterials such as graphene and its derivates have excellent electrical, optical, thermal, physical, and chemical properties that have made them indispensable in several industries worldwide, including medicine, electronics, and energy. By incorporating carbon-based nanomaterials as nanofillers in electrospun nanofibers (ESNFs), smoother and highly conductive nanofibers can be achieved that possess a large surface area and porosity. This approach provides a superior alternative to traditional materials in the development of improved biosensors. Carbon-based ESNFs, among the most exciting new-generation materials, have many applications, including filtration, pharmaceuticals, biosensors, and membranes. The electrospinning technique is a highly efficient and cost-effective method for producing desired nanofibers compared to other methods. Various types of natural and synthetic organic polymers have been successfully utilized in solution electrospinning to produce nanofibers directly. To create diagnostics devices, various biomolecules like antibodies, enzymes, aptamers, ligands, and even cells can be bound to the surface of nanofibers. Electrospun nanofibers can serve as an immobilization matrix to create a biofunctional surface. Thus, biosensors with desired features can be produced in this way. This study comprehensively reviews biosensors that integrate nanodiamonds, fullerenes, carbon nanotubes, graphene oxide, and carbon dots into electrospun nanofibers.

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A conductometric enzymatic methanol sensor based on polystyrene - PAMAM dendritic polymer electrospun nanofibers

Cited by 2 publications

References 29 publications

Design and Construction of Enzyme-Based Electrochemical Gas Sensors

Design and Construction of Enzyme-Based Electrochemical Gas Sensors

Carbon-Based Nanomaterials Decorated Electrospun Nanofibers in Biosensors: A Review

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