Characterization and fabrication of disposable screen printed microelectrodes

Kadara, Rashid O.; Jenkinson, Norman; Banks, Craig E.

doi:10.1016/j.elecom.2009.05.010

Cited by 66 publications

(61 citation statements)

References 15 publications

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“…Cyclic voltammograms at 0.005 V s ( Fig. 1B) revealed the microelectrode behavior as presented in other studies (Choudhry et al, 2010a;Huang et al, 2009;Kadara et al, 2009b). Increasing the spray time had a significant reduction effect on the peak intensity and the peak-to-peak separation revealing that the cosmetic spray reduced the amount of accessible graphite ( Figs.…”

Section: Spray Modified Spcementioning

confidence: 55%

“…Some previous studies (Kadara et al, 2009a(Kadara et al, , 2009b regarding SPCEs showed that the geometric area is higher than the real electrochemical area because of the polymer attached to the graphite particles. SEM images of bare (un-treated), cosmetic spray modified, and aniline polymerized SPCE surfaces were A Fig.…”

Section: Spray Modified and Aniline Polymerized Spcementioning

confidence: 99%

“…Screen-printed electrodes are inexpensive and disposable electrodes with the potential to be applied in real life situations (Choudhry et al, 2009;Gornall et al, 2009;Honeychurch & Hart, 2003;Kadara et al, 2009aKadara et al, , 2009bDomínguez-Renedo et al, 2007). Nowadays, they are used as glucose or metal sensors (Choudhry et al, 2009;Florescu & Brett, 2005;Kampouris et al, 2009;Piano et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Microelectrodes are a versatile tool showing unique properties due to their small size (Belmont et al, 1996;Choudhry et al, 2010b;Cugnet et al, 2009;Kadara et al, 2009b;Orozco et al, 2010;Štulík et al, 2000). Microarrays are single microelectrodes wired in parallel, with each electrode diffusionally independent, yielding a signal by many orders of magnitude larger compared to individual microelectrodes (Krishnamoorthy et al, 2009;Orozco et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, a large analytical signal coupled with low background currents results in an increase of the analytical sensitivity allowing lower detection limits. Microelectrode arrays provide advantages such as high current densities, high temporal and spatial resolution, and reduced capacitive-charging currents; they also find use in environmental sensing particularly as analytical screening tools for heavy metals detection (Choudhry et al, 2010a;Honeychurch & Hart, 2003;Kadara et al, 2009b;Orozco et al, 2010;Domínguez-Renedo et al, 2007;Štulík et al, 2000). Since microarrays represent a large number of active discs, when the target analyte is in an analytically challenging medium such as an effluent containing surface passivating media, even though some microdiscs on the array become electrochemically inactive, the sensitivity is not severely affected due to the still high overall number of active discs.…”

Section: Introductionmentioning

confidence: 99%

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Development of polyaniline microarray electrodes for cadmium analysis

et al. 2012

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Disposable screen-printed electrodes (SPCE) were modified using a cosmetic product to partially block the electrode surface in order to obtain a microelectrode array. The microarrays formed were electropolymerized with aniline. Scanning electron microscopy was used to evaluate the modified and polymerized electrode surface. Electrochemical characteristics of the constructed sensor for cadmium analysis were evaluated by cyclic and square-wave voltammetry. Optimized stripping procedure in which the preconcentration of cadmium was achieved by depositing at -1.20 V (vs. Ag/AgCl) resulted in a well defined anodic peak at approximately -0.7 V at pH 4.6. The achieved limit of detection was 4 × 10 −9 mol dm −3. Spray modified and polymerized microarray electrodes were successfully applied to quantify cadmium in fish sample digests.

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Section: Spray Modified Spcementioning

confidence: 55%

Section: Spray Modified and Aniline Polymerized Spcementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of polyaniline microarray electrodes for cadmium analysis

et al. 2012

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Microelectrode Designs

Metters¹,

Banks²

2015

Agricultural and Food Electroanalysis

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Covalent Bonding of Thermoplastics to Rubbers for Printable, Reel‐to‐Reel Processing in Soft Robotics and Microfluidics

et al. 2018

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The lamination of mechanically stiff structures to elastic materials is prevalent in biological systems and popular in many emerging synthetic systems, such as soft robotics, microfluidics, stretchable electronics, and pop-up assemblies. The disparate mechanical and chemical properties of these materials have made it challenging to develop universal synthetic procedures capable of reliably adhering to these classes of materials together. Herein, a simple and scalable procedure is described that is capable of covalently laminating a variety of commodity ("off-the-shelf") thermoplastic sheets to silicone rubber films. When combined with laser printing, the nonbonding sites can be "printed" onto the thermoplastic sheets, enabling the direct fabrication of microfluidic systems for actuation and liquid handling applications. The versatility of this approach in generating thin, multifunctional laminates is demonstrated through the fabrication of milliscale soft actuators and grippers with hinged articulation and microfluidic channels with built-in optical filtering and pressure-dependent geometries. This method of fabrication offers several advantages, including technical simplicity, process scalability, design versatility, and material diversity. The concepts and strategies presented herein are broadly applicable to the soft robotics, microfluidics, and advanced and additive manufacturing communities where hybrid rubber/plastic structures are prevalent.

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Characterization and fabrication of disposable screen printed microelectrodes

Cited by 66 publications

References 15 publications

Development of polyaniline microarray electrodes for cadmium analysis

Development of polyaniline microarray electrodes for cadmium analysis

Microelectrode Designs

Covalent Bonding of Thermoplastics to Rubbers for Printable, Reel‐to‐Reel Processing in Soft Robotics and Microfluidics

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