Threads in tubing: an innovative approach towards improved electrochemical thread-based microfluidic devices

Oliveira, Ana C.M.; Araújo, Diele A.G.; Pradela‐Filho, Lauro A.; Takeuchi, Regina M.; Trindade, Magno Aparecido Gonçalves; Santos, André L.

doi:10.1039/d2lc00387b

Cited by 9 publications

(3 citation statements)

References 55 publications

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“…Synthetic saliva was prepared according to the literature, [38,39] where 0.225 g NaCl, 0.115 g KCl, 0.020 g NH4Cl, and 0.015 g Na 2 SO 4 were dissolved in 50 mL of ultrapure water. Then, 200 μL of the saliva sample was spiked with known nitrite concentrations.…”

Section: Methodsmentioning

confidence: 99%

Modulating the Electrochemical Response of Eco‐Friendly Laser‐Pyrolyzed Paper Sensors Applied to Nitrite Determination

et al. 2022

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Miniaturized paper-based electrochemical sensors were fabricated using kraft paper and CO 2 laser, dispensing the need for chemical reagents and controlled atmospheric conditions. This study initially evaluated the paper type and laser processing parameters, enhancing the electrodes' robustness, electrochemical response, and electrical resistance. The sensors were also treated by applying À 1 V for 60 s in 1.0 mol L À 1 KCl, which is a simple and rapid procedure. The electrochemical treatment increased the electroactive area and roughness, confirmed by scanning electron microscopy. These aspects helped modulate the sensors' electrochemical response for nitrite determination, improving selectivity and sensitivity for this compound. The sensors also showed repeatability and batch-to-batch reproducibility, with 2.2 and 10 % RSD, respectively. Therefore, this work brings a protocol to fabricating competitive electrochemical sensors through a sustainable strategy, opening possibilities for designing new analytical systems.

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Section: Methodsmentioning

confidence: 99%

Modulating the Electrochemical Response of Eco‐Friendly Laser‐Pyrolyzed Paper Sensors Applied to Nitrite Determination

et al. 2022

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“…and synthetic (e.g., polyester, polyetherpolyurea, acrylic, etc.) threads (Oliveira et al, 2022). The flow characteristics and the detection methods employed in threads are similar to those employed in paper, since both are porous (Berthier et al, 2017;Tan et al, 2021).…”

Section: Thread-based Analytical Devices(µtads)mentioning

confidence: 99%

Low-cost microfluidics: Towards affordable environmental monitoring and assessment

Mesquita

Gong

Lin

2022

Front. Lab. Chip. Technol.

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Effective environmental monitoring has become a worldwide concern, requiring the development of novel tools to deal with pollution risks and manage natural resources. However, a majority of current assessment methods are still costly and labor-intensive. Thanks to the rapid advancements in microfluidic technology over the past few decades, great efforts have been made to develop miniaturized tools for rapid and efficient environmental monitoring. Compared to traditional large-scale devices, microfluidic approaches provide several advantages such as low sample and energy consumption, shortened analysis time and adaptabilities to onsite applications. More importantly, it provides a low-cost solution for onsite environmental assessment leveraging the ubiquitous materials such as paper and plastics, and cost-effective fabrication methods such as inkjet printing and drawing. At present, devices that are disposable, reproducible, and capable of mass production have been developed and manufactured for a wide spectrum of applications related to environmental monitoring. This review summarizes the recent advances of low-cost microfluidics in the field of environmental monitoring. Initially, common low-cost materials and fabrication technologies are introduced, providing a perspective on the currently available low-cost microfluidic manufacturing techniques. The latest applications towards effective environmental monitoring and assessment in water quality, air quality, soil nutrients, microorganisms, and other applications are then reviewed. Finally, current challenges on materials and fabrication technologies and research opportunities are discussed to inspire future innovations.

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“…Recently, microfluidic thread-based analytical devices (µTADs) have gained more attention due to their simplicity, cost-effectiveness, rapid response, and ease of operation. [33][34][35][36][37] Since they allow the fluid to flow on the hydrophilic channel by capillary force, there is no need for an external microfluidic pump, saving cost and reducing overall complexity. Of all the readout methods for point-of-care (POC) testing, distancebased visual measurement offers a simpler approach without the need for instrumentation.…”

Section: Introductionmentioning

confidence: 99%

Simple distance-based thread analytical device integrated with ion imprinted polymer for Zn²⁺ quantification in human urine samples

Chheang,

Khachornsakkul,

Del-Rio-Ruiz

et al. 2024

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Threads in tubing: an innovative approach towards improved electrochemical thread-based microfluidic devices

Abstract: Thread-based microfluidic analytical devices have received growing attention since threads have some advantages over other materials. Compared to paper, threads are also capable of spontaneously transporting fluid due to capillary...

Cited by 9 publications

References 55 publications

Modulating the Electrochemical Response of Eco‐Friendly Laser‐Pyrolyzed Paper Sensors Applied to Nitrite Determination

Modulating the Electrochemical Response of Eco‐Friendly Laser‐Pyrolyzed Paper Sensors Applied to Nitrite Determination

Low-cost microfluidics: Towards affordable environmental monitoring and assessment

Simple distance-based thread analytical device integrated with ion imprinted polymer for Zn²⁺ quantification in human urine samples

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Threads in tubing: an innovative approach towards improved electrochemical thread-based microfluidic devices

Abstract: Thread-based microfluidic analytical devices have received growing attention since threads have some advantages over other materials. Compared to paper, threads are also capable of spontaneously transporting fluid due to capillary...

Cited by 9 publications

References 55 publications

Modulating the Electrochemical Response of Eco‐Friendly Laser‐Pyrolyzed Paper Sensors Applied to Nitrite Determination

Modulating the Electrochemical Response of Eco‐Friendly Laser‐Pyrolyzed Paper Sensors Applied to Nitrite Determination

Low-cost microfluidics: Towards affordable environmental monitoring and assessment

Simple distance-based thread analytical device integrated with ion imprinted polymer for Zn2+ quantification in human urine samples

Contact Info

Product

Resources

About

Simple distance-based thread analytical device integrated with ion imprinted polymer for Zn²⁺ quantification in human urine samples