Results 11 to 20 of about 281 (95)

Near-Field Communication Tag for Colorimetric Glutathione Determination with a Paper-Based Microfluidic Device [PDF]

open access: yesBiosensors, 2023
Here, we propose a microfluidic paper-based analytical device (µPAD) implemented with a near-field communication (NFC) tag as a portable, simple and fast colorimetric method for glutathione (GSH) determination.
Inmaculada Ortiz-Gómez   +6 more
doaj   +2 more sources

A microfluidic paper analytical device using capture aptamers for the detection of PfLDH in blood matrices [PDF]

open access: yesMalaria Journal, 2022
Background The prevalence and death rate arising from malaria infection, and emergence of other diseases showing similar symptoms to malaria require the development of malaria-specific and sensitive devices for its diagnosis.
Adewoyin Martin Ogunmolasuyi   +4 more
doaj   +2 more sources

A 3D Microfluidic Paper-Based Analytical Device with Smartphone-Based Colorimetric Readout for Phosphate Sensing [PDF]

open access: yesSensors
In this work, a 3D microfluidic paper-based analytical device (3D-µPAD) was developed for the smartphone-based colorimetric determination of phosphate in environmental samples. The assay relied on the formation of a blue-colored product (molybdenum blue)
Jose Manuel Graña-Dosantos   +3 more
doaj   +2 more sources

Smartphone-Based Chemiluminescent Origami µPAD for the Rapid Assessment of Glucose Blood Levels [PDF]

open access: yesBiosensors, 2021
Microfluidic paper analytical devices (µPADs) represent one of the most appealing trends in the development of simple and inexpensive analytical systems for diagnostic applications at the point of care (POC).
Donato Calabria   +6 more
doaj   +2 more sources

A Trianalyte µPAD for Simultaneous Determination of Iron, Zinc, and Manganese Ions [PDF]

open access: yesMolecules
In this work, a microfluidic paper-based analytical device (µPAD) for simultaneous detection of Fe, Zn, and Mn ions using immobilized chromogenic reagents Ferene S, xylenol orange, and 1-(2-pyridylazo)-2-naphthol, respectively, is presented.
Barbara Rozbicka   +2 more
doaj   +2 more sources

Simple and Equipment-Free Paper-Based Device for Determination of Mercury in Contaminated Soil [PDF]

open access: yesMolecules, 2021
This work presents a simple and innovative protocol employing a microfluidic paper-based analytical device (µPAD) for equipment-free determination of mercury. In this method, mercury (II) forms an ionic-association complex of tetraiodomercurate (II) ion (
Hikmanita Lisan Nashukha   +4 more
doaj   +2 more sources

A Paper-Based Assay for the Determination of Total Antioxidant Capacity in Human Serum Samples [PDF]

open access: yesBiosensors
Determining the total antioxidant capacity (TAC) of biological samples is a valuable approach to measuring health status under oxidative stress conditions, such as infertility and type 2 diabetes.
Michelle T. Tran   +3 more
doaj   +2 more sources

Development and Evaluation of a Paper-Based Microfluidic Device for Detection of Listeria monocytogenes on Food Contact and Non-Food Contact Surfaces [PDF]

open access: yesFoods, 2022
Listeria monocytogenes is the third most deadly foodborne pathogen in the United States. The bacterium is found in soil and water, contaminating raw food products and the processing environment, where it can persist for an extended period.
Codi Jo Broten   +3 more
doaj   +2 more sources

A Three-Reagent “Green” Paper-Based Analytical Device for Solid-Phase Spectrometric and Colorimetric Determination of Dihydroquercetin [PDF]

open access: yesSensors, 2022
Microfluidic paper-based analytical devices (µPADs) represent one of the promising green analytical strategies for low-cost and simple determination of various analytes. The actual task is the development of such devices for quantitation of antioxidants,
Vladimir V. Apyari   +4 more
doaj   +2 more sources

Design and Functionalization of a µPAD for the Enzymatic Determination of Nitrate in Urine [PDF]

open access: yesMolecules, 2021
In this work, the design of a microfluidic paper-based analytical device (μPAD) for the quantification of nitrate in urine samples was described. Nitrate monitoring is highly relevant due to its association to some diseases and health conditions.
Francisca T. S. M. Ferreira   +2 more
doaj   +2 more sources

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