Paper-based field-effect transistor sensors

Bushra, K. Ayshathil; K.Sudhakara, Prasad

doi:10.1016/j.talanta.2021.123085

Cited by 13 publications

(14 citation statements)

References 134 publications

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“…Between the D and S electrodes, the channel measures 0.5 cm in length ( w ) and 0.25 cm in width ( l ). The S, D, and G electrodes are made of Ag paste, while the dielectric layer is a hydrophilic CH4 paper that serves as insulation (microfluidic) . The fabricated device is dried in the oven at 60° to remove all of the moisture content.…”

Section: Methods and Materialsmentioning

confidence: 99%

“…Cellulose chromatography papers have recently been used as a flexible substrate in electrochemical devices and electronic applications. , Paper electronic devices have attracted much interest due to their adaptability, affordability, simplicity of capillary action for analytes, user-friendliness, exceptional electrical and electronic performances, and disposability. The PFET is a sustainable electronic device made of paper as a substrate/active material that may be functionalized with metal oxides, nanomaterials, and carbon-based 2D nanocomposite (NC) to provide promising results. ,, However, traditional patterning techniques for typical silicon-/polymer-based FETs, such as atomic layer deposition (ALD), thermal evaporation, pulsed laser deposition (PLD), and vacuum coating, may not work on paper substrates.…”

Section: Introductionmentioning

confidence: 99%

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Two-Dimensional Ternary Nanocomposite-Decorated Cellulose Field Effect Transistor for Nonenzymatic Sweat Glucose Sensing

Bushra,

Shim,

Prasad

2023

ACS Appl. Nano Mater.

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Wearable sensors are effective point-of-care (POC) diagnostic tools for the timely analysis of a patient's disease status. The best way to achieve such biosensors is by developing a device for the noninvasive investigation of human sweat. However, the ultralow concentrations of biomarkers in sweat pose challenges to achieving high sensitivity. The remarkable qualities of flexible paper field effect transistors (PFETs), including their high modulation index, pliability, transducing capability, and quick reaction, make them potential candidates for wearable sensors. Our study presents a biodegradable, disposable, scalable, low-cost PFET device for nonenzymatic, wearable glucose sensing applications. In the sequence, we further discussed the functionalization of the channel, electrodes, and sensing methods. Here, the semiconducting silver (Ag) nanoparticle (NP)-decorated cuprous oxide (Cu 2 O) dispersed on reduced graphene oxide (rGO) was synthesized by a rapid, cheaper microwave-assisted method. Material characterization techniques validate the nanocomposite (NC) formation, which is patterned as the transistor channel. Charge (cation/anion) generated due to the electrolytes (analyte) and NC interaction develops interface potential and electric double layer (EDL)/capacitance change that stimulates the channel conductivity. The faster electron and hole mobility, coupled with the superior selectivity of Ag−Cu 2 O and the high conductivity of rGO, collectively contribute to excellent electrocatalytic activity for glucose oxidation. The fabricated PFET sensor could achieve a limit of detection (LOD) of 96 nM with high sensitivity and selfamplification effect. Real-time applications using artificial sweat introduced with a physiological range of sweat glucose concentrations (0.01−0.1 mM) yielded promising findings, indicating the potential use of inexpensive and sustainable PFETs for wearable glucose sensors.

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Section: Methods and Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Ternary Nanocomposite-Decorated Cellulose Field Effect Transistor for Nonenzymatic Sweat Glucose Sensing

Bushra,

Shim,

Prasad

2023

ACS Appl. Nano Mater.

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“…[162][163][164] The mechanism of FETs biosensor voltage is modulating conductivity of the channel between source and drain (Figure 8a). [165][166][167] As a typical prototype of wearable FETs biosensor for quantification of cortisol (Figure 8b), [167] the gate channel with the semiconducting material of graphene was modified with the cortisol antibody. The proposed biosensor exhibited a sufficiently low LOD of 10 pg mL −1 , and the current decreased linearly with the cortisol concentration.…”

Section: Field Effect Transistorsmentioning

confidence: 99%

High‐Throughput Screening of Metabolic Biomarkers and Wearable Biosensors for the Quantification of Metabolites

Zhang

Qian

2023

Advanced Sensor Research

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Metabolic biomarkers facilitate pathological/physiological investigations and clinic decisions. Noninvasive quantification of metabolic biomarkers allows patients to monitor their health without time, location, and environmental constraints. Recently, the synergistic integration between high-throughput screening strategy via mass spectrometry and noninvasive quantification techniques via wearable biosensors may provide fundamental insights into the application of metabolic biomarkers in clinical diagnostics. Here, mass spectrometry for the screening of metabolic biomarkers in several major clinical diseases (retinoblastoma, coronary heart disease, lung adenocarcinoma) is introduced. Then, three types of wearable biosensors based on electrochemistry, organic electrochemical transistors, and field effect transistors for the noninvasive quantification of metabolic biomarkers are summarized. The review may serve as a handbook for high-throughput screening of metabolic biomarkers and wearable biosensors for the quantification of metabolites. It is anticipated that biomarker discovery and quantification will facilitate the next generation of wearable biosensors toward personalized, intelligent, and precise home-healthcare on a large-scale.

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“…In addition, an organic FET exhibits check-in electric characteristics, such as the threshold voltage, saturation current, and field-effect charge carrier mobility when the sensors are exposed to the targeted gas. Apart from being lightweight and flexible, FET gas sensors possess numerous advantages, such as excellent selectivity, remarkable repeatability and response, and low-cost production [ 164 , 165 , 166 ].…”

Section: Working Principle Of Various Nh 3 Sensorsmentioning

confidence: 99%

Recent Advances in Graphene-Based Nanocomposites for Ammonia Detection

2022

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The increasing demand to mitigate the alarming effects of the emission of ammonia (NH3) on human health and the environment has highlighted the growing attention to the design of reliable and effective sensing technologies using novel materials and unique nanocomposites with tunable functionalities. Among the state-of-the-art ammonia detection materials, graphene-based polymeric nanocomposites have gained significant attention. Despite the ever-increasing number of publications on graphene-based polymeric nanocomposites for ammonia detection, various understandings and information regarding the process, mechanisms, and new material components have not been fully explored. Therefore, this review summarises the recent progress of graphene-based polymeric nanocomposites for ammonia detection. A comprehensive discussion is provided on the various gas sensor designs, including chemiresistive, Quartz Crystal Microbalance (QCM), and Field-Effect Transistor (FET), as well as gas sensors utilising the graphene-based polymer nanocomposites, in addition to highlighting the pros and cons of graphene to enhance the performance of gas sensors. Moreover, the various techniques used to fabricate graphene-based nanocomposites and the numerous polymer electrolytes (e.g., conductive polymeric electrolytes), the ion transport models, and the fabrication and detection mechanisms of ammonia are critically addressed. Finally, a brief outlook on the significant progress, future opportunities, and challenges of graphene-based polymer nanocomposites for the application of ammonia detection are presented.

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Paper-based field-effect transistor sensors

Cited by 13 publications

References 134 publications

Two-Dimensional Ternary Nanocomposite-Decorated Cellulose Field Effect Transistor for Nonenzymatic Sweat Glucose Sensing

Two-Dimensional Ternary Nanocomposite-Decorated Cellulose Field Effect Transistor for Nonenzymatic Sweat Glucose Sensing

High‐Throughput Screening of Metabolic Biomarkers and Wearable Biosensors for the Quantification of Metabolites

Recent Advances in Graphene-Based Nanocomposites for Ammonia Detection

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