Results 21 to 30 of about 669 (134)
Micromachines, 2022 A current challenge regarding microfluidic paper-based analytical devices (µPAD) for blood plasma separation (BPS) and electrochemical immunodetection of protein biomarkers is how to achieve a µPAD that yields enough plasma to retain the biomarker for ...
Francisco Burgos-Flórez +5 more
doaj +1 more source
Talanta Open, 2023 Classification of cannabis samples as hemp- or drug-type is an ever-increasing problem worldwide. Colorimetric tests and infrared spectroscopy were selected and critically compared among the available techniques.
Daniel Gallart-Mateu +4 more
doaj +1 more source
Microfluidic Paper-Based Analytical Device (μPAD) for Determining Hydroquinone in Facial Whitening Cream using Phloroglucinol Reagent [PDF]
, 2021 A microfluidic paper-based analytical device (µPAD) is developed in this work to analyze hydroquinone in facial whitening creams using phloroglucinol.
Puspitaloka, Paradhita Ayu +4 more
core +2 more sources
Capillary microfluidic platform for sulfite determination in wines [PDF]
, 2022 A microfluidic paper-based analytical device integrating a chromoreactand – a formylazo dye– has been fabri- cated and used for a colorimetric assay of sulfites. The chromoreactand was covalently linked to paper by vinyl sulfone chemistry.
Arroyo, Manuel J. +7 more
core +1 more source
مجلة 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
مجلة 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
Talanta Open, 2023 The present work proposes the development of a simple and easy-to-make microfluidic paper-based analytical device (µPAD) as a prototype chromatic device for the simultaneous determination of copper and zinc in urine.
Michael Pérez-Rodríguez +1 more
doaj +1 more source
In situ synthesis of fluorescent silicon nanodots for determination of total carbohydrates in a paper microfluidic device combined with laser prepared graphene heater [PDF]
, 2021 We report a simple, rapid, low-resource and one-step method for formation of fluorescent silicon nanodots (SNDs) in a microfluidic paper-based analytical device (μPAD) incorporated in a reusable, portable and flexible heater for determination of total ...
Capitán Vallvey, Luis Fermín +8 more
core +1 more source
Reducing Unspecific Protein Adsorption in Microfluidic Papers Using Fiber-Attached Polymer Hydrogels
Sensors, 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
Biosensors, 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