Characterization and optimization of low cost microfluidic thread based electroanalytical device for micro flow injection analysis

Agustini, Deonir; Bergamini, Márcio F.; Marcolino‐Júnior, Luiz H.

doi:10.1016/j.aca.2016.11.046

Cited by 55 publications

(32 citation statements)

References 65 publications

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“…The combination of cotton-threads and electrochemical detection is relatively new topic in electroanalytical procedures (Agustini et al, 2016). This first work related describes the construction of low cost microfluidic thread-based electroanalytical device (μ-TED) employing graphite electrodes which was used for simultaneous amperometric determination of acetaminophen and diclofenac and a second work describing the optimization of μ-TED devices (Agustini et al, 2017). Ochiai et al (2017) described μ-TED using multiwalled carbon nanotubes (MWCNTs) modified screen printed electrodes (SPE) for electrochemical determination of estriol hormone using amperometry, obtaining a limit of detection of 5.3 × 10 −7 mol L −1 .…”

Section: Introductionmentioning

confidence: 99%

Combination of electrochemical biosensor and textile threads: A microfluidic device for phenol determination in tap water

Caetano

Carneiro

Agustini

et al. 2018

Biosensors and Bioelectronics

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Microfluidic devices constructed using low cost materials presents as alternative for conventional flow analysis systems because they provide advantages as low consumption of reagents and samples, high speed of analysis, possibility of portability and the easiness of construction and maintenance. Herein, is described for the first time the use of an electrochemical biosensor for phenol detection combined with a very simple and efficient microfluidic device based on commercial textile threads. Taking advantages of capillary phenomena and gravity forces, the solution transportation is promoted without any external forces or injection pump. Screen printed electrodes were modified with carbon nanotubes/gold nanoparticles followed by covalent binding of tyrosinase. After the biosensor electrochemical characterization by cyclic voltammetry technique, the optimization of relevant parameters such as pH, potential of detection and linear range for the biosensor performance was carried out; the system was evaluated for analytical phenol detection presenting limit of detection and limit of quantification 2.94nmolL and 8.92nmolL respectively. The proposed system was applied on phenol addition and recovery studies in drinking water, obtaining recoveries rates between 90% and 110%.

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Section: Introductionmentioning

confidence: 99%

Combination of electrochemical biosensor and textile threads: A microfluidic device for phenol determination in tap water

Caetano

Carneiro

Agustini

et al. 2018

Biosensors and Bioelectronics

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“…Analyses carried out on μTED system are dependent upon parameters such as device dimensions, detection zone, microchannel and sample injection. In a previous works , these parameters were evaluated in order to promote the best device performance. Even so, some experimental parameters such as flow rate and applied potential were evaluated, aiming to obtain a good analytical performance to determinate the antioxidant capacity.…”

Section: Resultsmentioning

confidence: 92%

3D‐printed Microfluidic Device Based on Cotton Threads for Amperometric Estimation of Antioxidants in Wine Samples

et al. 2017

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The present work describes the evaluation of microfluidic electroanalytical devices constructed by a 3D printer using ABS (acrylonitrile butadiene styrene) polymer combined with cotton threads as microchannels. Screen-printed carbon electrodes (SPCEs) were used as electrochemical detector for amperometric determination of gallic and caffeic acid in wine samples. Using optimal experimental conditions (flow rate of 0.71 mL s À1, applied potential of + 0.30 V and volume of injection of 2.0 mL) the proposed method presented a linear response for a concentration range of 5.0 3 10 À6 to 1.0 3 10 À3 mol L À1 . The detection limits for gallic and caffeic acid were found to 1.5 3 10 À6 mol L À1 and 8.0 3 10 À7 mol L À1 , respectively, with a sample throughput of 43 h À1. The achieved results are in agreement with those found using the official FolinCiocaulteu method.

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“…214 Also, Li et al worked on the development of a self-powered PDMS-based microuidic droplet generator with mono-dispersed droplet generation and multi-sample introduction in a controlled way. 215 A simplied and inexpensive passive microuidic channel with excellent analytical performance to carry out microow injection analysis (mFIA) was investigated by Agustini et al 216 Subsequently, Liu et al developed a paraffin wax and glass MFD through higher driving pressure to maintain longer working times where the inlet was exposed to air with a slower decline in ow rate. 217 Li et al proposed a high-pressure MFD to drive the uid using gas permeation and suppressing the generation of bubbles under high temperatures.…”

Section: Hydrostatic Pressurementioning

confidence: 99%

Advances in passively driven microfluidics and lab-on-chip devices: a comprehensive literature review and patent analysis

et al. 2020

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Characterization and optimization of low cost microfluidic thread based electroanalytical device for micro flow injection analysis

Cited by 55 publications

References 65 publications

Combination of electrochemical biosensor and textile threads: A microfluidic device for phenol determination in tap water

Combination of electrochemical biosensor and textile threads: A microfluidic device for phenol determination in tap water

3D‐printed Microfluidic Device Based on Cotton Threads for Amperometric Estimation of Antioxidants in Wine Samples

Advances in passively driven microfluidics and lab-on-chip devices: a comprehensive literature review and patent analysis

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