Inkjet-printed electrochemical sensors

Moya, Ana; Gabriel, Gemma; Villa, Rosa; Campo, F. Javier del

doi:10.1016/j.coelec.2017.05.003

Cited by 151 publications

(103 citation statements)

References 52 publications

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“…The digital technology of inkjet-printing is an interesting alternative, as it enables the deposition of functional materials like metal-based nanoparticle inks on a large variety of substrate materials with a high resolution of the printed structures [4,5]. As a mask-less and fully additive printing technology with a short process chain and with a wide variety of available nanoparticle-based inks it is particularly interesting for the cost-efficient fabrication of electronic components [6][7][8] and for various biosensing applications [9,10]. The non-contact process also allows the deposition of functional materials onto 2.5D and 3D surfaces [11,12], e.g., printing into cavities.…”

Section: Introductionmentioning

confidence: 99%

Inkjet-Printing of Nanoparticle Gold and Silver Ink on Cyclic Olefin Copolymer for DNA-Sensing Applications

Trotter

Juric

Bagherian

et al. 2020

Sensors

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Inkjet technology as a maskless, direct-writing technology offers the potential for structured deposition of functional materials for the realization of electrodes for, e.g., sensing applications. In this work, electrodes were realized by inkjet-printing of commercial nanoparticle gold ink on planar substrates and, for the first time, onto the 2.5D surfaces of a 0.5 mm-deep microfluidic chamber produced in cyclic olefin copolymer (COC). The challenges of a poor wetting behavior and a low process temperature of the COC used were solved by a pretreatment with oxygen plasma and the combination of thermal (130 • C for 1 h) and photonic (955 mJ/cm 2 ) steps for sintering. By performing the photonic curing, the resistance could be reduced by about 50% to 22.7 µΩ cm. The printed gold structures were mechanically stable (optimal cross-cut value) and porous (roughness factors between 8.6 and 24.4 for 3 and 9 inkjet-printed layers, respectively). Thiolated DNA probes were immobilized throughout the porous structure without the necessity of a surface activation step. Hybridization of labeled DNA probes resulted in specific signals comparable to signals on commercial screen-printed electrodes and could be reproduced after regeneration. The process described may facilitate the integration of electrodes in 2.5D lab-on-a-chip systems.

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Section: Introductionmentioning

confidence: 99%

Inkjet-Printing of Nanoparticle Gold and Silver Ink on Cyclic Olefin Copolymer for DNA-Sensing Applications

Trotter

Juric

Bagherian

et al. 2020

Sensors

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“…In the last 10 years, enormousa dvances in nanomaterials and sensinga pproaches, such as the use of graphene, [22,23] CNTs, [24,25] immunomagnetic nanoparticles or beads, [26] screen printed electrodes (SPEs), [27] paper-based [24] and inkjet-printed platforms, [28] as well as interdigitated array microelectrodes [29] have been achieved to improve the specificity and sensitivity of biosensors. [30] Herein, only electrochemically relevant materials will be discussed to illustrate how improve the sensitivity, specificity and automation of the pathogen biosensors can be improved.…”

Section: Methodsmentioning

confidence: 99%

Electrochemical Detection of Pathogenic Bacteria—Recent Strategies, Advances and Challenges

Kuss

Amin

Compton

2018

Chemistry An Asian Journal

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Bacterial infections represent one of the leading causes of mortality worldwide, nevertheless the design and development of rapid, cost-efficient and reliable detection methods for pathogens remains challenging. In recent years, electrochemical sensing methods have gained increasing attention for the detection of pathogenic bacteria, due to their increasingly competitive sensitivity. However, combining sensitivity with cost efficiency, high selectivity and a facile working procedure in a portable device is difficult. The presented review provides a summary of biosensing strategies for bacteria, published since 2015, by covering significant achievements towards custom-designed portable point-of-care devices. Herein, the direct chemical recognition of bacteria via enzyme activity or secretion products, as well as their detection at various electrode surfaces and materials, such as nanomaterials, indium tin oxide or paper-based immunosensors, is discussed. Furthermore, newly established hyphenated sensing principles, incorporated into lab-on-a-chip and microfluidic devices, are presented and remaining technical challenges and limitations are considered.

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“…Printed materials have the potential to impact a wide range of technologies including integrated circuits, sensors, batteries, lighting, and radio‐frequency devices . Devices can be fabricated on disposable (paper), flexible (polymers), and wearable (textile) materials, enabling innovative applications in electronics, energy, and medicine.…”

Section: Introductionmentioning

confidence: 99%

A New Class of Low‐Temperature Plasma‐Activated, Inorganic Salt‐Based Particle‐Free Inks for Inkjet Printing Metals

Sui

Dai

Liu

et al. 2019

Adv Materials Technologies

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tailor the properties of the printed device for each specific application.Currently, printing approaches such as inkjet printing have been limited to a small number of metals because of the inks that are composed of either nano particles or metal-organics. Metal nano particlebased inks are characterized by high metal loading which lead to low contact resistances. However, the inks are prone to agglomeration because of the high particle densities and the high sur face free energy of nanoparticles. For this reason, a number of steps are required to synthesize dispersed and printable inks, including the addition of organic capping groups such as poly(Nvinyl 2pyrrolidone) to sterically stabilize the particles. [9] The interactions between the organics and the metal nanoparticle surface are material specific and most studies have focused on Ag, [10] Au, [11] and Cu. [12] Alternatively, metalloorganic decomposition (MOD) inks composed of molecular metal-organic compounds are particlefree, reducing nozzle clogging, and free of the organic capping groups. [13] A drawback, though, is that these compounds are not readily available and must be carefully designed and syn thesized so that they are stable before and during printing near ambient temperatures, while still capable of being decomposed to produce metallic structures at slightly elevated temperatures. [14] Overall, MOD has focused on Ag, with an increasing number of studies only recently emerging on other metals such as Cu. [12] In addition to the limited number of metals, printing has also been restricted to a few substrates that can withstand relatively high temperatures because of a heating step, referred to gener ally as sintering, that is carried out after printing. In the case of metal nanoparticlebased inks, heating is required to remove the organic capping groups and fuse the metal nanoparticles to form percolating electrically conductive structures. [15] For MOD inks, the heating activates decomposition of the metal-organic compound which leads to release of the organic groups and metal nanoparticle nucleation and growth. [16] Recently, alter native approaches to heating such as chemical, [17] electrical, [18] photonic, [10,19] laser, [20] plasma, [21] and microwave [15,22] have been reported to lower the thermal loading; however, the effec tiveness of these methods varies considerably. [23] Inkjet printing is rapidly emerging as a means to fabricate low-cost electronic devices; however, its widespread adoption is hindered by the complexity of the inks and the relatively high processing temperatures, limiting it to only a few metals and substrates. A new approach for inkjet printing is described, based on commercially available, particle-free inks formulated from inorganic metal salts and their subsequent low-temperature conversion to metallic structures by a non-equilibrium, inert gas plasma. This single, general method is demonstrated for a library of metals including gold (Au), silver (Ag), copper (Cu), palladium (Pd), platinum (Pt), lead (Pb), bismut...

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Inkjet-printed electrochemical sensors

Cited by 151 publications

References 52 publications

Inkjet-Printing of Nanoparticle Gold and Silver Ink on Cyclic Olefin Copolymer for DNA-Sensing Applications

Inkjet-Printing of Nanoparticle Gold and Silver Ink on Cyclic Olefin Copolymer for DNA-Sensing Applications

Electrochemical Detection of Pathogenic Bacteria—Recent Strategies, Advances and Challenges

A New Class of Low‐Temperature Plasma‐Activated, Inorganic Salt‐Based Particle‐Free Inks for Inkjet Printing Metals

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