Ion sensitive field effect transistor based on graphene and ionophore hybrid membrane for phosphate detection

Kim, Jungyoon; Wang, Li; Bourouina, Tarik; Cui, Tianhong

doi:10.1007/s00542-018-4200-z

Cited by 8 publications

(5 citation statements)

References 29 publications

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“…The membrane is fabricated by a molecularly imprinted polymer (MIP). The sensor exhibited a detection limit of 1.79 μM and a response time of 10 s [ 219 ]. Implementation progress of carbon nanomaterials for electrochemical sensors opens the possibility of reliable, fast, easy, highly sensitive, selective and cost-effective determination of specific contaminants [ 221 ].…”

Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

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A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., pesticides, nitrate, nitrite, phosphorus, water hardeners, disinfectant, and other emergent contaminants (phenol, estrogen, gallic acid etc.). We focus on the influence of surface modification of the working electrodes by carbon nanomaterials, metallic nanostructures, imprinted polymers and evaluate the corresponding sensing performance. Especially for pesticides, which are challenging and need special care, we highlight biosensors, such as enzymatic sensors, immunobiosensor, aptasensors, and biomimetic sensors. We discuss the sensors’ overall performance, especially concerning real-sample performance and the capability for actual field application.

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Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

“… Redrawing of ( a ) Pencil graphite sensor coated with Molybdenum blue functionalized poly(vinyl chloride) following [ 212 ], ( b ) Nozzle-Jet-Printed Silver/Graphene Composite/Field-Effect Transistor Sensor following [ 212 ] and ( c ) ISFET structure with the phosphate selective membrane following [ 219 ]. …”

Section: Figurementioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

View full text Add to dashboard Cite

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“…However, to make graphene ISFETs ideal for in vitro and in vivo temporal recording applications such as a neural probe, it is important to induce ion selectivity. Ion-selective solvent-polymeric membrane, similar to those in ion-selective electrodes, holds the potential to induce ion selectivity. − However, its impact on the inherent ion sensitivity of graphene, the resulting selectivity, and stability in biological electrolytes is unknown.…”

Section: Introductionmentioning

confidence: 99%

Ion-Selective Membrane-Coated Graphene–Hexagonal Boron Nitride Heterostructures for Field-Effect Ion Sensing

et al. 2021

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An intrinsic ion sensitivity exceeding the Nernst–Boltzmann limit and an sp 2 -hybridized carbon structure make graphene a promising channel material for realizing ion-sensitive field-effect transistors with a stable solid–liquid interface under biased conditions in buffered salt solutions. Here, we examine the performance of graphene field-effect transistors coated with ion-selective membranes as a tool to selectively detect changes in concentrations of Ca2+, K+, and Na+ in individual salt solutions as well as in buffered Locke’s solution. Both the shift in the Dirac point and transconductance could be measured as a function of ion concentration with repeatability exceeding 99.5% and reproducibility exceeding 98% over 60 days. However, an enhancement of selectivity, by about an order magnitude or more, was observed using transconductance as the indicator when compared to Dirac voltage, which is the only factor reported to date. Fabricating a hexagonal boron nitride multilayer between graphene and oxide further increased the ion sensitivity and selectivity of transconductance. These findings incite investigating ion sensitivity of transconductance in alternative architectures as well as urge the exploration of graphene transistor arrays for biomedical applications.

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“…CVD graphene [74] Ion-sensitive field effect transistor with graphene/ionophore hybrid membrane for Boron-doped GQDs with Fe 3+ (B-GQDs) [76] Indirect fluorescent detection of PO4…”

Section: Structurementioning

confidence: 99%

A DFT Study of Phosphate Ion Adsorption on Graphene Nanodots: Implications for Sensing

Shtepliuk

2023

Sensors

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The optical properties of graphene nanodots (GND) and their interaction with phosphate ions have been investigated to explore their potential for optical sensing applications. The absorption spectra of pristine GND and modified GND systems were analyzed using time-dependent density functional theory (TD-DFT) calculation investigations. The results revealed that the size of adsorbed phosphate ions on GND surfaces correlated with the energy gap of the GND systems, leading to significant modifications in their absorption spectra. The introduction of vacancies and metal dopants in GND systems resulted in variations in the absorption bands and shifts in their wavelengths. Moreover, the absorption spectra of GND systems were further altered upon the adsorption of phosphate ions. These findings provide valuable insights into the optical behavior of GND and highlight their potential for the development of sensitive and selective optical sensors for phosphate detection.

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Ion sensitive field effect transistor based on graphene and ionophore hybrid membrane for phosphate detection

Cited by 8 publications

References 29 publications

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Ion-Selective Membrane-Coated Graphene–Hexagonal Boron Nitride Heterostructures for Field-Effect Ion Sensing

A DFT Study of Phosphate Ion Adsorption on Graphene Nanodots: Implications for Sensing

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