Results 21 to 30 of about 286 (97)

Iron (II) Determination in Lipstick Samples using Spectrophotometric and Microfluidic Paper-based Analytical Device (µPADs) Platform via Complexation Reaction with Iron Chelator 1, 10-phenanthroline: A Comparative Study

open access: yesمجلة بغداد للعلوم, 2022
This study was undertaken to introduce a fast, accurate, selective, simple and environment-friendly colorimetric method to determine iron (II) concentration in different lipstick brands imported or manufactured locally in Baghdad, Iraq. The samples were
Ekhlas A. Abdulkareem   +2 more
doaj   +1 more source

Determination of Nickel and Cobalt in Cosmetic Products Marketed in Iraq Using Spectrophotometric and Microfluidic Paper-based Analytical Device (µPADs) Platform

open access: yesمجلة بغداد للعلوم, 2022
Two quantitative, environment-friendly and easily monitored assays for Ni (II) and Co (III) ions analysis in different lipstick samples collected from 500-Iraqi dinars stores located in Baghdad were introduced.
Ekhlas A. Abdulkareem   +1 more
doaj   +1 more source

Reducing Unspecific Protein Adsorption in Microfluidic Papers Using Fiber-Attached Polymer Hydrogels

open access: yesSensors, 2021
Microfluidic paper combines pump-free water transport at low cost with a high degree of sustainability, as well as good availability of the paper-forming cellulosic material, thus making it an attractive candidate for point-of-care (POC) analytics and ...
Alexander Ritter von Stockert   +6 more
doaj   +1 more source

Electrophoretic µPAD for Purification and Analysis of DNA Samples

open access: yesBiosensors, 2022
In this work, the fabrication and characterization of a simple, inexpensive, and effective microfluidic paper analytic device (µPAD) for monitoring DNA samples is reported.
Natascha Katharina Heinsohn   +4 more
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

Dual-Modal Assay Kit for the Qualitative and Quantitative Determination of the Total Water Hardness Using a Permanent Marker Fabricated Microfluidic Paper-Based Analytical Device

open access: yesChemosensors, 2020
A dip-and-read microfluidic paper-based analytical device (µPAD) was developed for the qualitative and quantitative detection of the total hardness of water.
Oyejide Damilola Oyewunmi   +2 more
doaj   +1 more source

A Chemically Patterned Microfluidic Paper-based Analytical Device (C-µPAD) for Point-of-Care Diagnostics

open access: yesScientific Reports, 2017
A chemically patterned microfluidic paper-based analytical device (C-µPAD) is developed to create fluidic networks by forming hydrophobic barriers using chemical vapor deposition (CVD) of trichlorosilane (TCS) on a chromatography paper.
Trinh Lam   +3 more
doaj   +1 more source

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

Application of Paper-Based Microfluidic Analytical Devices (µPAD) in Forensic and Clinical Toxicology: A Review

open access: yesBiosensors, 2023
The need for providing rapid and, possibly, on-the-spot analytical results in the case of intoxication has prompted researchers to develop rapid, sensitive, and cost-effective methods and analytical devices suitable for use in nonspecialized laboratories
Giacomo Musile   +6 more
doaj   +1 more source

Disposable Microfluidic Paper-Based Device for On-Site Quantification of Urinary Creatinine

open access: yesChemosensors, 2023
In this work, a new microfluidic paper-based analytical device (µPAD) was developed for on-hand creatinine quantification in urine samples. When compared to conventional methods, this innovative paper device is more accessible and portable, it provides ...
Maria M. P. Melo   +3 more
doaj   +1 more source

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