Detection and Quantification of Polyquaterniums via Polyion-Sensitive Ion-Selective Optodes Inkjet Printed on Cellulose Paper

Ferguson, Stephen A.; Wang, Xuewei; Mahoney, Mollie; Meyerhoff, Mark E.

doi:10.2116/analsci.34.45

Cited by 10 publications

(5 citation statements)

References 26 publications

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“…[16]. Indeed, paper-based polyion-sensitive optical devices for PQ measurements have already been reported by our group [15]. Hence, paper-based electrochemical devices are a logical next progression.…”

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confidence: 86%

“…Sensors directed toward measuring more industrial/cosmetic polyions (i. e., polyquaterniums (PQs)) have, to date, not undergone the same rate of targeted sensor development and application. To our knowledge, sensor configurations directed toward PQ analysis has only recently become an area of active exploration [15]. Continuing to expand on new advancements in sensor configurations will allow analysts to choose the configuration for PQ analysis that best fits the desired application.…”

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confidence: 99%

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Polyion Detection via All‐solid‐contact Paper‐based Polyion‐sensitive Polymeric Membrane Electrodes

Ferguson

Meyerhoff

2019

Electroanalysis

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The first all‐solid‐contact paper‐based single‐use polyion‐sensitive ion‐selective electrodes (ISEs) are described. These polyion‐sensitive ISEs are fabricated using cellulose filter paper coated with a carbon ink conductive layer. A polyanion sensing membrane is cast on a section of the coated paper and the sensor is insulated, resulting in a disposable, single‐use device. Various polyanions are shown to yield large negative potentiometric responses when using these disposable devices for direct polyanion detection. These new sensors are further demonstrated to be useful in indirect polycation detection when polycations (i. e., polyquaterniums (PQs)) are titrated with polyanionic dextran sulfate (DS). Titrations monitored using these paper‐based, all‐solid‐contact devices yield endpoints proportional to the given PQ concentration present in the test sample.

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confidence: 86%

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confidence: 99%

Polyion Detection via All‐solid‐contact Paper‐based Polyion‐sensitive Polymeric Membrane Electrodes

Ferguson

Meyerhoff

2019

Electroanalysis

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“…Recently, optode has been used as a detector for mPAD. [18][19][20][21][22][23][24][25][26] Therefore, it is desirable to develop a mPAD using optode as a detector that is portable at the measurement site and can easily quantify low concentrations of AS. In general, the reported mPADs have several shortcomings, especially in terms of sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Microfluidic paper-based analytical device with a preconcentration system for the measurement of anionic surfactants using an optode detector

Zhu,

Masadome

2024

Anal. Methods

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“…An important issue for PADs is the development of simple detection schemes that promote instrument-free detection. In general, colorimetry can be achieved by taking images of the PADs, which is followed by image processing to measure the color intensity or hue 19–21 . Obviously, judgment of the concentrations using only the naked eye would be an attractive option in terms of portability and ease of operation.…”

Section: Introductionmentioning

confidence: 99%

Long-term stabilization of hydrogen peroxide by poly(vinyl alcohol) on paper-based analytical devices

Boonpoempoon

Wonsawat

Kaneta

2019

Sci Rep

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Stabilizing reagents that can be deposited onto paper is an important issue for researchers who depend on paper-based analytical devices (PADs), because long-term stability of the devices is essential in point-of-care testing. Here, we found that poly(vinyl alcohol) (PVA) would stabilize hydrogen peroxide placed on a paper substrate following exposure to air. Horseradish peroxidase was employed as a sample in colorimetric measurements of PADs after hydrogen peroxide and 3,3′,5,5′-tetramethylbenzidine were deposited as substrates in an enzymatic reaction. The addition of PVA to hydrogen peroxide significantly suppressed its degradation. Concentrations of PVA that ranged from 0.5 to 2%, increased the duration of the stability of hydrogen peroxide, and the results for a PVA concentration of 1% approximated those of 2% PVA. Storage of the PADs at 4 °C in a refrigerator extended the stability of the hydrogen peroxide containing 2% PVA by as much as 30 days. The stability of hydrogen peroxide without PVA was degraded after one day under room temperature.

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Detection and Quantification of Polyquaterniums via Polyion-Sensitive Ion-Selective Optodes Inkjet Printed on Cellulose Paper

Cited by 10 publications

References 26 publications

Polyion Detection via All‐solid‐contact Paper‐based Polyion‐sensitive Polymeric Membrane Electrodes

Polyion Detection via All‐solid‐contact Paper‐based Polyion‐sensitive Polymeric Membrane Electrodes

Microfluidic paper-based analytical device with a preconcentration system for the measurement of anionic surfactants using an optode detector

Long-term stabilization of hydrogen peroxide by poly(vinyl alcohol) on paper-based analytical devices

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