Paper Microfluidic Device with a Horizontal Motion Valve and a Localized Delay for Automatic Control of a Multistep Assay

2021 ◽  
Author(s):  
Dandan Tu ◽  
Allison Holderby ◽  
John Dean ◽  
Samuel Mabbott ◽  
Gerard L. Coté
Keyword(s):  
Automatic Control ◽  
Microfluidic Device ◽  
Horizontal Motion ◽  
Paper Microfluidic

scholarly journals Citizen-Led Sampling to Monitor Phosphate Levels in Freshwater Environments Using a Simple Paper Microfluidic Device

2021 ◽  
Author(s):  
Samantha Richardson ◽  
Alexander Iles ◽  
Jeanette M. Rotchell ◽  
Tim Charlson ◽  
Annabel Hanson ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
Mobile Technology ◽  
High Frequency ◽  
Microfluidic Devices ◽  
Cost Effective ◽  
Smartphone App ◽  
Test Device ◽  
Monitoring Campaign ◽  
Paper Microfluidic ◽  
Freshwater Environments

We demonstrate how a combination of paper microfluidic devices and handheld mobile technology can be used by citizen scientists to carry out a sustained water monitoring campaign. We have developed a paper-based analysis device and a 3 minute sampling workflow that requires no more than a container, a test device and a smartphone app. The contaminant measured in these pilots are phosphates, detectable down to 3 mg L<sup>-1</sup>. Together these allow volunteers to successfully carry out cost-effective, high frequency, phosphate monitoring over an extended geographies and periods.

Colorimetric analysis of the decomposition of S-nitrosothiols on paper-based microfluidic devices

The Analyst ◽  
2016 ◽  
Vol 141 (22) ◽  
pp. 6314-6320 ◽  
Author(s):  
Abdulghani Ismail ◽  
Marillya O. Araújo ◽  
Cyro L. S. Chagas ◽  
Sophie Griveau ◽  
Fanny D'Orlyé ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
Microfluidic Devices ◽  
Colorimetric Analysis ◽  
Paper Microfluidic

A disposable paper microfluidic device was developed to analyse different S-nitrosothiols simultaneously decomposed by Hg2+ as well as UV, Vis and IR lamps.

A sample volume independent paper microfluidic device for quantifying glucose in real human plasma

2020 ◽  
Vol 24 (9) ◽  
Author(s):  
Mehrdad Lotfi Choobbari ◽  
Mohammad Behnam Rad ◽  
Amir Jahanshahi ◽  
Hedayatollah Ghourchian
Keyword(s):  
Human Plasma ◽  
Microfluidic Device ◽  
Sample Volume ◽  
Paper Microfluidic

In situ synthesis of fluorescent silicon nanodots for determination of total carbohydrates in a paper microfluidic device combined with laser prepared graphene heater

2021 ◽  
Vol 332 ◽  
pp. 129506
Author(s):  
Inmaculada Ortiz-Gómez ◽  
Víctor Toral-López ◽  
Francisco J. Romero ◽  
Ignacio de Orbe-Payá ◽  
Antonio García ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
In Situ Synthesis ◽  
Total Carbohydrates ◽  
Paper Microfluidic

scholarly journals Dry storage of multiple reagent types within a paper microfluidic device for phenylalanine monitoring

2021 ◽  
Vol 13 (5) ◽  
pp. 660-671
Author(s):  
Lael Wentland ◽  
Rachel Polaski ◽  
Elain Fu
Keyword(s):  
Microfluidic Device ◽  
Dry Storage ◽  
Paper Microfluidic

Demonstration of robust reagent stability for three types of reagents in a phenylalanine monitor.

scholarly journals Simple monitoring of pH and urea in whole blood using wearable smart woman pad

Bioimpacts ◽  
2020 ◽  
Author(s):  
Bambang Kuswandi ◽  
Nur Andriani ◽  
Ari S Nugraha
Keyword(s):  
Blood Cell ◽  
Microfluidic Device ◽  
Red Blood Cell ◽  
Whole Blood ◽  
Color Change ◽  
Clinical Laboratory ◽  
Limit Of Detection ◽  
Colorimetric Detection ◽  
Real Samples ◽  
Paper Microfluidic

Introduction: In this work, we used a thread-paper microfluidic device (μTPAD) system, where a threaded part for the handling of the whole blood samples and a paper part for the reaction of plasma with immobilized bioreagents integrated into woman pad as a wearable sensing device namely as smart women pad. The μTPAD as a wearable smart woman pad is developed for the detection of pH and urea in mensuration blood as real samples. Methods: This combined device was constructed to cover the elements required, that is, separation of red blood cell, conditioning, analyte reaction, and colorimetric detection. The color change in sensing areas was measured in the RGB values via a smartphone using the Color Grab after a smart woman pad was used. The thread allowed red blood cell sampling and separation, while the paper microfluidic device was used for conditioning, biorecognition, and colorimetric transduction of pH and urea as analytes. Results: The time needed for analysis was measured as 110 s using the equilibrium method for both analytes, with a limit of detection (LOD) of 72.55 μg/mL for urea, with precision around 1.68%, while for pH around 0.80%. The smart woman pad allowed rapid detection of pH and urea in menstruation blood as real samples for monitoring of the kidney functions, and the results showed an agreement with the conventional methods that have been generally used in the clinical laboratory. Conclusion: The smart woman pad has the potential to be used as a wearable device to monitor the health status of the user via its blood mensuration analysis.

scholarly journals Melamine detection using a paper microfluidic device

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Wu RG ◽  
Zhong ZW ◽  
Ankit ◽  
Chee JY ◽  
Wang C ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
Paper Microfluidic

scholarly journals Citizen-Led Sampling to Monitor Phosphate Levels in Freshwater Environments Using a Simple Paper Microfluidic Device

2021 ◽  
Author(s):  
Samantha Richardson ◽  
Alexander Iles ◽  
Jeanette M. Rotchell ◽  
Tim Charlson ◽  
Annabel Hanson ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
Mobile Technology ◽  
High Frequency ◽  
Microfluidic Devices ◽  
Cost Effective ◽  
Smartphone App ◽  
Test Device ◽  
Monitoring Campaign ◽  
Paper Microfluidic ◽  
Freshwater Environments

We demonstrate how a combination of paper microfluidic devices and handheld mobile technology can be used by citizen scientists to carry out a sustained water monitoring campaign. We have developed a paper-based analysis device and a 3 minute sampling workflow that requires no more than a container, a test device and a smartphone app. The contaminant measured in these pilots are phosphates, detectable down to 3 mg L<sup>-1</sup>. Together these allow volunteers to successfully carry out cost-effective, high frequency, phosphate monitoring over an extended geographies and periods.

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