Flexible electrochemical sensor printed with conductive ink made with craft glue and graphite to detect drug and neurotransmitter

Freitas, Rafaela Cristina de; Fonseca, Wilson T.; Azzi, Déborah C.; Raymundo‐Pereira, Paulo A.; Oliveira, Osvaldo N.; Janegitz, Bruno C.

doi:10.1016/j.microc.2023.108823

Cited by 16 publications

(6 citation statements)

References 54 publications

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“…The aim of using a binder in the ink formulation is to improve the strength of the particle network within the ink [416]. Polyvinyl acetal (PVA) [392,417], polyvinyl butyral (PVB) [396], ethylene cellulose (EC) [416], and polymethyl methacrylate (PMMA) [416] are different types of binders commonly used for ink formulation, where, for a set concentration of binders, the viscosity of the ink has been shown to increase with the molecular length of the binder [418]. As can be expected, the concentration of the binder also plays a critical role in the final rheology of the ink.…”

Section: Screen Printing Processmentioning

confidence: 99%

Recent Advances and Challenges in Thin-Film Fabrication Techniques for Low-Temperature Solid Oxide Fuel Cells

2023

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Solid oxide fuel cells (SOFCs) are amongst the most widely used renewable alternative energy systems with near-zero carbon emission, high efficiency, and environment-friendly features. However, the high operating temperature of SOFCs is still considered a major challenge due to several issues regarding the materials’ corrosion, unwanted reactions between layers, etc. Thus, low-temperature SOFCs (LT-SOFCs) have gained significant interest during the past decades. Despite the numerous advantages of LT-SOFCs, material selection for each layer is of great importance as the common materials have not shown a desirable performance so far. In addition to the selection of the materials, fabrication techniques have a great influence on the properties of the SOFCs. As SOFCs with thinner layers showed lower polarisation resistance, especially in the electrolyte layer, different thin-film fabrication methods have been employed, and their effect on the overall performance of SOFCs has been evaluated. In this review, we aim to discuss the past and recent progress on the materials and thin-film fabrication techniques used in LT-SOFCs.

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Section: Screen Printing Processmentioning

confidence: 99%

Recent Advances and Challenges in Thin-Film Fabrication Techniques for Low-Temperature Solid Oxide Fuel Cells

2023

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“…The printed sensors were used for the determination of paracetamol and dopamine. The results obtained demonstrated that the sensor is applicable, is low cost, can be produced on a large scale, and can be adapted for microfluidic and wearable devices [25]. Orzari et al (2024) developed an electrode printed with a conductive ink based on carbon black and polyvinyl alcohol.…”

Section: Introductionmentioning

confidence: 96%

Electrochemical Determination of Catechol Using a Disposable Printed Electrode with Conductive Ink Based on Graphite and Carbon Black

de Oliveira,

de Oliveira Cândido,

Pereira

et al. 2024

Analytica

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Catechol (CT) is a phenolic compound widely used in various industrial sectors, but it is toxic; thus, there is a need for methods that aim to identify and quantify the existence of residues of this material in the environment. In this study a disposable printed electrochemical sensor was developed as an effective alternative for determining CT in water samples. The electrode, called SPEC, was manufactured using the screen-printing method using polyethylene terephthalate (PET) as a support, in which a conductive ink based on carbonaceous materials was used to print the working and auxiliary electrodes and a silver/silver chloride of ink on the reference electrode. The optimal ratio for the conductive ink was 6.25% carbon black, 35.42% graphite, and 58.33% nail polish. The ink obtained was characterized by scanning electron microscopy (SEM). The assessment of the effect of pH on the redox process showed Nernstian behavior (0.057 V pH−1), indicating that the process involves the same number of protons and electrons. Under optimized conditions, with 0.2 mol L−1 acetate buffer at pH 5.0, and by square wave voltammetry, the sensor presented sensitivity values of 0.31 μA L μmol−1, a detection limit of 5.96 μmol L−1, and a quantification limit of 19.87 μmol L−1. The sensor was applied to determine CT in tap water samples, and the results showed recoveries between 97.95 and 100.17%.

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“…The central component of competitive printed electronics is an electronic ink with high conductivity. 1–4 Typically, electronic inks are expected to exhibit good printability across multiple printing processes such as screen printing, inkjet printing, and transfer printing. 5–8 However, the addition of additives to an electronic slurry is a double-edged sword.…”

Section: Introductionmentioning

confidence: 99%

Self-reducing molecular ink for printed electronics and lithium-ion battery cathodes as conductive binder

Qi,

Han,

Quan

et al. 2024

J. Mater. Chem. C

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Flexible electrochemical sensor printed with conductive ink made with craft glue and graphite to detect drug and neurotransmitter

Cited by 16 publications

References 54 publications

Recent Advances and Challenges in Thin-Film Fabrication Techniques for Low-Temperature Solid Oxide Fuel Cells

Recent Advances and Challenges in Thin-Film Fabrication Techniques for Low-Temperature Solid Oxide Fuel Cells

Electrochemical Determination of Catechol Using a Disposable Printed Electrode with Conductive Ink Based on Graphite and Carbon Black

Self-reducing molecular ink for printed electronics and lithium-ion battery cathodes as conductive binder

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