Paper as sampling substrates and all-integrating platforms in potentiometric ion determination

Krikstolaityte, Vida; Ding, Ruiyu; Xia, Esther Chua Hui; Lisak, Grzegorz

doi:10.1016/j.trac.2020.116070

Cited by 38 publications

(24 citation statements)

References 107 publications

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“…High-throughput determination of the content of multiple components in samples can be realized on μPads. Also, μPads provide a good platform for sample pretreatment, reagent transportation, mixing, separation and detection and other analytical functions [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Hou

Guo

et al. 2022

J. Anal. Test.

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Point-of-care testing (POCT), as a portable and user-friendly technology, can obtain accurate test results immediately at the sampling point. Nowadays, microfluidic paper-based analysis devices (μPads) have attracted the eye of the public and accelerated the development of POCT. A variety of detection methods are combined with μPads to realize precise, rapid and sensitive POCT. This article mainly introduced the development of electrochemistry and optical detection methods on μPads for POCT and their applications on disease analysis, environmental monitoring and food control in the past 5 years. Finally, the challenges and future development prospects of μPads for POCT were discussed.

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Section: Introductionmentioning

confidence: 99%

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Hou

Guo

et al. 2022

J. Anal. Test.

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show abstract

Section: Introductionmentioning

confidence: 99%

“…In the last 10 years, the research activity in this sector has had a rapid grown, attested by several reviews [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ]. In 2020, a number of reviews appeared demonstrating that this is a hot topic, and if the first reviews are more general, the last ones are more particular such as potentiometric paper-based devices [ 28 ], attesting to the higher numbers of the articles published in this field. Regarding the configurations, if the first configuration of the paper-based devices is mainly based on the horizontal flow, recently the foldability has boosted the vertical microfluidics, opening for a further route in this paper-based device field and leading to the origami paper-based devices.…”

Section: Introductionmentioning

confidence: 99%

Origami Paper-Based Electrochemical (Bio)Sensors: State of the Art and Perspective

et al. 2021

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In the last 10 years, paper-based electrochemical biosensors have gathered attention from the scientific community for their unique advantages and sustainability vision. The use of papers in the design the electrochemical biosensors confers to these analytical tools several interesting features such as the management of the solution flow without external equipment, the fabrication of reagent-free devices exploiting the porosity of the paper to store the reagents, and the unprecedented capability to detect the target analyte in gas phase without any sampling system. Furthermore, cost-effective fabrication using printing technologies, including wax and screen-printing, combined with the use of this eco-friendly substrate and the possibility of reducing waste management after measuring by the incineration of the sensor, designate these type of sensors as eco-designed analytical tools. Additionally, the foldability feature of the paper has been recently exploited to design and fabricate 3D multifarious biosensors, which are able to detect different target analytes by using enzymes, antibodies, DNA, molecularly imprinted polymers, and cells as biocomponents. Interestingly, the 3D structure has recently boosted the self-powered paper-based biosensors, opening new frontiers in origami devices. This review aims to give an overview of the current state origami paper-based biosensors, pointing out how the foldability of the paper allows for the development of sensitive, selective, and easy-to-use smart and sustainable analytical devices.

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“…The performance limitations of paper‐based ISEs suggest interference from the paper substrate [26] . This may be explained by chemical interactions of target ions with organic functional groups of cellulose fibers [27,28] or inorganic impurities in filter paper [29–31] .…”

Section: Introductionmentioning

confidence: 99%

Potentiometric Sensors with Polymeric Sensing and Reference Membranes Fully Integrated into a Sample‐Wicking Polyester Textile

Herrero

Bühlmann

2021

Analysis & Sensing

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Responding to current limitations in paper‐based sensors and the increased interest in wearable sensors, we introduce here potentiometric sensors fully integrated into a knitted polyester fabric and their application in aqueous and biological samples. Single layer ion‐sensing devices requiring only 30 μL of sample were fabricated using wax patterning and Ag/AgCl paint. These devices give a Nernstian response to chloride over 4 orders of magnitude – an order of magnitude improvement from analogous paper‐based devices. We also report the penetration of polyester yarns with polymeric hydrophobic and hydrophilic ion‐sensing and reference membranes, all fully embedded within the fabric. These results demonstrate the promise of knitted fabrics as substrates for fully‐integrated potentiometric sensors with improved detection limits. They also elucidate the effect of pore structure on sensor fabrication and performance, thereby affecting how we understand both fabric‐ and paper‐based devices.

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Paper as sampling substrates and all-integrating platforms in potentiometric ion determination

Cited by 38 publications

References 107 publications

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Origami Paper-Based Electrochemical (Bio)Sensors: State of the Art and Perspective

Potentiometric Sensors with Polymeric Sensing and Reference Membranes Fully Integrated into a Sample‐Wicking Polyester Textile

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