Results 41 to 50 of about 91,101 (280)
Biosensors, 2021 For most of the fast screening test papers for detecting Hg2+, the obtained results are qualitative. This study developed an operation for the μPAD and combined it with the chemical colorimetric method. Silver nanoparticle (AgNP) colloids were adopted as
Lung-Ming Fu +8 more
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Predicting Dimensions in Microfluidic Paper Based Analytical Devices [PDF]
Sensors, 2020 The main problem for the expansion of the use of microfluidic paper-based analytical devices and, thus, their mass production is their inherent lack of fluid flow control due to its uncontrolled fabrication protocols. To address this issue, the first step is the generation of uniform and reliable microfluidic channels.
Raquel Catalan-Carrio +3 more
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Controlling Fluorescent Readout in Paper-based Analytical Devices
ACS Biomaterials Science & Engineering, 2023 Paper is an ideal candidate for the development of new disposable diagnostic devices because it is a low-cost material, allows transport of the liquid on the device by capillary action, and is environmentally friendly. Today, colorimetric analysis is most often used as a detection method for rapid tests (test strips or lateral flow devices) but usually
Anna Luongo +5 more
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Paper-based analytical devices for point-of-need applications
Microchimica Acta, 2023 Paper-based analytical devices (PADs) are powerful platforms for point-of-need testing since they are inexpensive devices fabricated in different shapes and miniaturized sizes, ensuring better portability. Additionally, the readout and detection systems can be accomplished with portable devices, allying with the features of both systems.
Lauro A. Pradela-Filho +6 more
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Fabrication, Flow Control, and Applications of Microfluidic Paper-Based Analytical Devices
Molecules, 2019 Paper-based microfluidic devices have advanced significantly in recent years as they are affordable, automated with capillary action, portable, and biodegradable diagnostic platforms for a variety of health, environmental, and food quality applications ...
Hosub Lim, Ali Turab Jafry, Jinkee Lee
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Micromachines, 2022 A user-friendly, low-cost detector able to read the RGB indexes of microfluidic paper-based analytical devices (µPADs) was developed. The RGB-detector was built with 3D printing using PLA+ and reused Li-ion batteries.
Bianca Maria Pazzi +2 more
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Chemosensors, 2022 In this study, a paper-based sensor was developed for the detection of hydrogen-peroxide-related biomarkers, with glucose oxidase catalyzing as an example.
Wei-Yi Zhang, Hao Zhang, Feng-Qing Yang
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Quantification of Colorimetric Data for Paper-Based Analytical Devices [PDF]
ACS Sensors, 2019 Colorimetric measurements by image analysis, giving RGB or HSV data, have become commonplace with optical indicator-based assays and as a readout for paper-based analytical devices (PADs). Yet, most works on PADs tend to ignore the quantitative relationship between color data and concentration, which may hamper their establishment as analytical devices
Soda, Yoshiki, Bakker, Eric
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, 2014 This paper presents a novel paper-based analytical device based on the colorimetric paper assays through its light reflectance. The device is portable, low cost (<20 dollars), and lightweight (only 176 g) that is available to assess the cost ...
Li, Bowei +5 more
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Biosensors, 2022 Herein, a paper-based glucose/air biofuel cell (BFC) was constructed and implemented for self-powered pesticide detection. Our developed paper-based chip relies on a hollow-channel to transport fluids rather than capillarity, which reduces analysis times
Yanhu Wang +5 more
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