Results 31 to 40 of about 39,332,435 (296)

In-situ synthesis of reagents in paper-based analytical devices using paper stacking [PDF]

open access: yes, 2022
This article demonstrates a technique for the in-situ synthesis of an insoluble analytical reagent in paper analytical devices, using paper stacking.
Ayushi, Chauhan   +2 more
core   +1 more source

Quantitative evaluation of analyte transport on microfluidic paper-based analytical devices (μPADs)

open access: yesThe Analyst, 2018
This work quantitatively evaluates the transport efficiency of analytical target compounds on microfluidic paper-based analytical devices by means of colorimetry and absorption spectrometry.
Riki Ota   +3 more
openaire   +3 more sources

Paper-Based Molecular-Imprinting Technology and Its Application

open access: yesBiosensors, 2022
Paper-based analytical devices (PADs) are highly effective tools due to their low cost, portability, low reagent accumulation, and ease of use. Molecularly imprinted polymers (MIP) are also extensively used as biomimetic receptors and specific adsorption
Shufang Xu, Zhigang Xu, Zhimin Liu
doaj   +1 more source

Nanomaterials integrated with microfluidic paper-based analytical devices for enzyme-free glucose quantification.

open access: yesTalanta: The International Journal of Pure and Applied Analytical Chemistry, 2023
In this study, nanomaterials capable of enzyme-free glucose quantification and colorimetric readout are integrated into a microfluidic paper-based analytical devices (μPADs).
Kawin Khachornsakkul   +2 more
semanticscholar   +1 more source

Simultaneous and Sensitive Detection of Three Pesticides Using a Functional Poly(Sulfobetaine Methacrylate)-Coated Paper-Based Colorimetric Sensor

open access: yesBiosensors, 2023
Chlorpyrifos (CHL), profenofos (PRO) and cypermethrin (CYP) are widely used in combination to increase crop yields. However, these three pesticides can cause serious harm to human health and do not easily degrade.
Jingyang Zhu   +6 more
doaj   +1 more source

A paper-based colorimetric molecular test for SARS-CoV-2 in saliva

open access: yesBiosensors and Bioelectronics: X, 2021
Herein, we describe the development of a paper-based device to detect nucleic acids of pathogens of interest in complex samples using loop-mediated isothermal amplification (LAMP) by producing a colorimetric response visible to the human eye.
Josiah Levi Davidson   +10 more
doaj   +1 more source

Absorbance based light emitting diode optical sensors and sensing devices [PDF]

open access: yes, 2008
The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of ...
O'Toole, Martina   +5 more
core   +2 more sources

Controlling Capillary-Driven Fluid Transport in Paper-Based Microfluidic Devices Using a Movable Valve [PDF]

open access: yes, 2017
This paper describes a novel, strategy for fabricating the movable valve on paper-based microfluidic devices to manipulate capillary-driven fluids. The movable valve fabrication is first realized using hollow rivets as the-holding center it, control the ...
Zhang, Peiqing   +11 more
core   +1 more source

Electrophoretic Separations on Parafilm-Paper-Based Analytical Devices. [PDF]

open access: yesSens Actuators B Chem, 2018
Microfluidic paper-based analytical devices (mPADs) have gained significant attention in recent years for applications ranging from clinical diagnostics to environmental testing. However, separation on mPADs remain challenging to implement, particularly in complex samples.
Mettakoonpitak J, Henry CS.
europepmc   +4 more sources

Microfluidic Paper Analytical Devices [PDF]

open access: yes, 2022
Microfluidic paper analytical devices (µPADs) are small, paper-based matrices similar to Lab-on-a-Chip (LOC). They are capable of semi-quantitative analysis, with applications ranging from medical to environmental to food and beverage testing.
Page, Madison
core   +1 more source

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