Results 41 to 50 of about 39,332,435 (296)

Porous Cellulose Substrate Study to Improve the Performance of Diffusion-Based Ionic Strength Sensors

open access: yesMembranes, 2022
Microfluidic paper-based analytical devices (µPADs) are leading the field of low-cost, quantitative in-situ assays. However, understanding the flow behavior in cellulose-based membranes to achieve an accurate and rapid response has remained a challenge ...
Hamid Khosravi   +3 more
doaj   +1 more source

Characterization of Reagent Pencils for Deposition of Reagents onto Paper-Based Microfluidic Devices

open access: yesMicromachines, 2017
Reagent pencils allow for solvent-free deposition of reagents onto paper-based microfluidic devices. The pencils are portable, easy to use, extend the shelf-life of reagents, and offer a platform for customizing diagnostic devices at the point of care ...
Cheyenne H. Liu   +6 more
doaj   +1 more source

Emerging applications of paper-based analytical devices for drug analysis: A review.

open access: yesAnalytica Chimica Acta, 2020
The use of paper microfluidics to perform chemical measurements for various analytical applications has gained interest over the last decade. One of the growing applications of these platforms is for the qualitative and quantitative determination of ...
Eka Noviana   +3 more
semanticscholar   +1 more source

Research Progress on electrochemical paper-based analytical devices for the Detection of Pesticide Residues [PDF]

open access: yesShipin Kexue
The development of pesticides has significantly advanced global agricultural production, but the ensuing problem of pesticide residues poses a severe threat to human health.
LI Yanqing, ZONG Xinrong, CHEN Si’an, ZHANG Min
doaj   +1 more source

Microfluidic Paper-Based Devices at the Edge of Real Samples: Fabrication Limits, Hybrid Detection, and Perspectives

open access: yesMicromachines
Microfluidic paper-based analytical devices (µPADs) convert ordinary cellulose into an active analytical platform where capillary gradients shape transport, surface chemistry guides recognition, and embedded electrodes or optical probes translate ...
Hsing-Meng Wang   +2 more
doaj   +1 more source

Printed platforms for paper-based analytical applications [PDF]

open access: yes, 2014
Paper-based analytical technologies enable quantitative and rapid analysis of analytes from various application areas including healthcare, environmental monitoring and food safety.
Määttänen, Anni
core   +1 more source

Surface Modification of Cellulose Paper for Quantum Dot-based Sensing Applications

open access: yesBioResources, 2015
Cellulose paper specimens with and without surface modification were compared in order to study their physicochemical compatibility with quantum dots (QDs) for biochemical sensing applications. Silane and chitosan modification methods were applied.
Liyun Guan   +6 more
doaj   +1 more source

Paper-Based Analytical Device for One-Step Detection of Bisphenol-A Using Functionalized Chitosan

open access: yesChemosensors, 2022
Bisphenol-A (BPA) is defined as one of the endocrine disrupting compounds. The accurate and inexpensive colorimetric paper-based analytical devices (PADs) are of crucial importance for BPA analysis.
Abdelhafid Karrat, Aziz Amine
doaj   +1 more source

Fabrication of paper-based microfluidic devices using a 3D printer and a commercially-available wax filament

open access: yesTalanta Open, 2022
In this work, we developed an alternative manufacturing paper-based microfluidics method through 3D printing and wax filament. Microfluidic paper-based analytical devices (µPADs) are low-cost and easy-to-manufacture tools used for various chemical and ...
Antonio Espinosa   +5 more
doaj   +1 more source

Advances in paper-based analytical devices relying on optical detection

open access: yesAdvanced Composites and Hybrid Materials
Public health emergencies increasingly threaten human health and socio-economic stability, necessitating enhanced monitoring and early warning capabilities to effectively prevent and mitigate public health risks.
Shan Wang   +6 more
semanticscholar   +1 more source

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