Paper-based potentiometric ion sensors constructed on ink-jet printed gold electrodes

Sjöberg, Pia; Määttänen, Anni; Vanamo, Ulriika; Novell, Marta; Ihalainen, Petri; Andrade, Francisco J.; Bobacka, Johan; Peltonen, Jouko

doi:10.1016/j.snb.2015.10.051

Cited by 70 publications

(58 citation statements)

References 42 publications

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“…Initially screen printed carbon substrates were of interest ; however, spontaneous processes occurring in the printed substrate significantly and adversely affect performance of these sensors. The alternative were plastic and more recently paper based substrates covered by drop‐casting, painting, printing or spraying with carbon nanomaterials, most often carbon nanotubes, alternatively reduced graphene oxide, to result in conductive support that can be used as electrical lead and transducer of ISEs prepared. Clearly the disadvantage of this approach is necessity to prepare stable suspension of carbon nanotubes allowing preparation of the conductive layer.…”

Section: Introductionsupporting

confidence: 90%

“…The conducting nanoparticle suspension, either nanoPPy(TSH) or nanoPPy(NO 3 ) were used to prepare the conducting paper, Figure . As it can be seen in Figure the conducting paper obtained was black, similarly as other conducting papers described earlier by other groups using e. g. CNTs to render conductivity of the paper support . Under conditions of TEM it is clearly seen that the paper structure is fully and continuously covered by regularly spherical nanoparticles of a diameter close to 30 nm, e. g. typical for polypyrrole nanospheres and applied synthesis method .…”

Section: Resultsmentioning

confidence: 99%

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Polypyrrole Nanoparticles Based Disposable Potentiometric Sensors

et al. 2017

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In this work polypyrrole nanoparticles of high electrochemical activity were used to prepare disposable, potentiometric sensors with a paper support. The paper support modified with polypyrrole nanoparticles served as electrical lead and ion‐to‐electron transducer and it was covered by a typical poly(vinyl chloride) based ion‐selective membrane. The properties of this arrangement were tested on example of potassium‐selective electrodes. The sensors prepared benefited from the properties of conducting polymer nanostructures: high electrical conductivity and electroactivity as well as absence of suspension stabilizing agent. The obtained electrodes were characterized with analytical parameters well comparable with those of classical ion‐selective electrodes.

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Section: Introductionsupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Polypyrrole Nanoparticles Based Disposable Potentiometric Sensors

et al. 2017

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“…Direct ink writing (DIW) is a burgeoning technology that offers an attractive choice for manufacturing materials, including ceramics, sensors, microelectrodes, and engineered tissue, by enabling the creation of large area flexible devices at a low cost [1][2][3][4]. Meanwhile, DIW opens new avenues for the manufacture of energetic materials exhibiting excellent properties and flexible patterns.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance of Pentaerythrite Tetranitrate‐Based Composites by Direct Ink Writing

et al. 2018

Propellants Explo Pyrotec

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Direct ink writing (DIW), a promising technology for manufacturing energetic materials, has been a hot topic in the micro-scale charge of explosives. Herein, three kinds of pentaerythrite tetranitrate (PETN)-based all-liquid explosive inks were engineered and patterned using DIW. Scanning electron microscopy, energy-dispersive x-ray spectroscopy, X-ray diffraction, differential scanning calorimetry, and nanoindentation were used to characterize the printed samples. The density, thickness of single layer, impact sensi-tivity and critical size of detonation were measured and analyzed. Results show that PETN/EC/Viton exhibits excellent properties, specifically greater activation energy (148.09 KJ mol À1 ), elastic modulus (2.808 GPa), and characteristic height (49.9 cm, 2.5 kg), over the two other samples. Moreover, a directly deposited sample in small grooves can provide steady detonation above the size of 1 3 0.101 mm. These features all contribute to the application of microsize detonation to a certain degree.

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“…Moreover, IJP can reduce the overall fabrication time and costs of an entire device due to the possibility of rapid iterative design changes during the sensor development stage and due to the up-scalability of the production rate from the prototype to the industrial level. In this way, IJP has been used for the fabrication of a broad range of chemical sensors based on gold on paper [39][40][41] as well as polymer substrates [27,42,43], silver [30,44] polyaniline [45,46] or CNTs [47][48][49][50]. CNTs are attractive functional materials for sensing platforms due to several advantageous CNT properties, such as good electrical conductivity, chemical and mechanical stability, high flexibility, electrocatalytic activity and reduced surface fouling characteristics for specific applications [51][52][53][54].…”

Section: Introductionmentioning

confidence: 99%

Inkjet-printed microtiter plates for portable electrochemical immunoassays

Jović

Zhu

Lesch

et al. 2017

Journal of Electroanalytical Chemistry

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Herein, we present the large-scale fabrication of multiplexed three-electrode sensors used in a point-of-care device platform that couples a magnetic bead-based immunoassay strategy with amperometric detection for rapid and highly sensitive analysis. The multiplexed sensors consisted of eight independent electrochemical cells, each with a carbon nanotube (CNT) working electrode, CNT counter electrode and a silver-silver chloride quasi-reference electrode. The microchips were fabricated on flexible polyethylene terephthalate (PET) sheets by sequential multilayer inkjet printing (IJP) of silver, CNT and insulator inks that were either simultaneously or subsequently post-processed (e.g. through UV photo-polymerization or photonic curing). Finally, plastic wells were mounted on top of the inkjet-printed patterns to obtain an eight-well microtiter plate where each well had a solution capacity of 50 μL. Due to the high precision of the IJP process, the microtiter plates showed high reproducibility among the individual electrochemical cells (1-2% of deviation). Furthermore, the microchips can be reusable for at least up to 20 times as demonstrated herein. In a customized multichannel potentiostat with eight implemented magnets matching the positions of the working electrodes, the electrochemical readout of magnetic bead based sandwich and competitive immunoassays was successfully realized for the detection of thyroid-stimulating hormone (TSH) and atrazine (ATR) in aqueous and urine samples, respectively. The achieved limits of detection for ATR (i.e. 0.01 μg/L) and TSH (i.e. 0.5 μIU/mL) demonstrated the potential of the IJP microtiter plates for the environmental and biological quantification of analytes in a very reliable high throughput platform. This work shows that IJP has certainly reached the status of a batch production tool for electroanalytical sensing platforms.

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Paper-based potentiometric ion sensors constructed on ink-jet printed gold electrodes

Cited by 70 publications

References 42 publications

Polypyrrole Nanoparticles Based Disposable Potentiometric Sensors

Polypyrrole Nanoparticles Based Disposable Potentiometric Sensors

Preparation and Performance of Pentaerythrite Tetranitrate‐Based Composites by Direct Ink Writing

Inkjet-printed microtiter plates for portable electrochemical immunoassays

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