Results 21 to 30 of about 11,717 (296)

RGB-Detector: A Smart, Low-Cost Device for Reading RGB Indexes of Microfluidic Paper-Based Analytical Devices

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, Dario Pistoia, Giancarla Alberti   +2 more
doaj   +1 more source

Mechanical Properties of Paper Saturated With a Hydrophobic Ionic Liquid

BioResources, 2023
Research into paper-based devices and ionic liquids has increased considerably in the past few years. Thus, the combination of paper-based devices with ionic liquids is also becoming an increasingly frequent research subject.
Christiane Helbrecht, Fabian Schmitt, Tobias Meckel, Markus Biesalski, Bastian J. M. Etzold, Samuel Schabel   +5 more
doaj   +2 more sources

Microfluidic Paper-Based Analytical Device for the Determination of Nitrite and Nitrate [PDF]

Analytical Chemistry, 2014
A low-cost disposable colorimetric microfluidic paper-based analytical device (μPAD) was developed for the determination of nitrite and nitrate. Nitrite is determined directly by the Griess reaction while nitrate is first reduced to nitrite in a hydrophilic channel of the μPAD with immobilized zinc microparticles.
Jayawardane, BM, Wei, S, McKelvie, ID, Kolev, SD   +3 more
openaire   +3 more sources

Pushing the Limits of Spatial Assay Resolution for Paper-Based Microfluidics Using Low-Cost and High-Throughput Pen Plotter Approach

Micromachines, 2020
To transform from reactive to proactive healthcare, there is an increasing need for low-cost and portable assays to continuously perform health measurements. The paper-based analytical devices could be a potential fit for this need.
Reza Amin, Fariba Ghaderinezhad, Caleb Bridge, Mikail Temirel, Scott Jones, Panteha Toloueinia, Savas Tasoglu   +6 more
doaj   +1 more source

Rapid flow in multilayer microfluidic paper-based analytical devices [PDF]

Lab on a Chip, 2018
Multilayer paper devices are used to generate fast flow rates (1.56 cm s−1) which are 145-fold quicker than classical single-layer paper device designs. These self-pumping devices are demonstrated for the sequential injection stripping analysis of cadmium.
Robert B. Channon, Michael P. Nguyen, Alexis G. Scorzelli, Elijah M. Henry, John Volckens, David S. Dandy, Charles S. Henry   +6 more
openaire   +2 more sources

Chemical Synthesis in Elastomer-Based Integrated Microfluidics [PDF]

, 2010
There is wide interest in using the unique properties of microfluidic environments for the production of fine chemicals and pharmaceuticals. Compared to bench top synthesis, microfluidic systems engender the significant advantage of superior control of ...
Cheng-chung Lee, Lee, Cheng-Chung
core   +1 more source

A Facile Method to Fabricate an Enclosed Paper-Based Analytical Device via Double-Sided Patterning for Ionic Contaminant Detection

Biosensors, 2023
Microfluidic paper-based analytical devices (μPADs) have been developed for use in a variety of diagnosis and analysis fields. However, conventional μPADs with an open-channel system have limitations for application as analytical platforms mainly because
Jinsol Choi, Eun-Ho Lee, Sung-Min Kang, Heon-Ho Jeong   +3 more
doaj   +1 more source

Micro-Injection Moulding of Polymer Microfluidic Devices [PDF]

, 2009
Microfluidic devices have several applications in different fields, such as chemistry, medicine and biotechnology. Many research activities are currently investigating the manufacturing of integrated microfluidic devices on a mass- production scale ...
Alcock, Jeffrey R., Usama M. Attia, Jeffrey R. Alcock, Silvia Marson, Marson, Silvia, Attia, Usama M.   +5 more
core   +1 more source

A Simple, Low Cost, Sensitive, and Portable Electrochemical Immunochromatography Sensing Device to Measure Estrone-3-Sulfate

Sensors, 2020
In livestock production, point-of-care testing (POCT) technology that enables easy on-site analysis of sex hormones is desired to improve reproductive efficiency.
Wataru Iwasaki, Chiwa Kataoka, Kazuyuki Sawadaishi, Keitaro Suyama, Nobutomo Morita, Masaya Miyazaki   +5 more
doaj   +1 more source

Microfluidic Technologies for High-Throughput Screening Applications [PDF]

, 2003
In this thesis, I present a strategy for the design and development of microfluidic devices for high-throughput screening applications, such as mutant enzyme libraries expressed in prokaryotic hosts, where a few point mutations at the DNA level ...
Thorsen, Todd Addison
core   +1 more source