Results 31 to 40 of about 10,493,785 (301)

Paper-based electroanalytical devices for accessible diagnostic testing [PDF]

open access: yes, 2013
Microfluidic paper-based analytical devices (μPADs) use the passive capillary-driven flow of aqueous solutions through patterned paper channels to transport a sample fluid into distinct detection zones that contain the reagents for a chemical assay ...
Maxwell, E. Jane   +2 more
core   +1 more source

Recent advances in potentiometric analysis: Paper–based devices

open access: yesSensors International, 2022
Paper has been increasingly used in recent years as a substrate in the structure of sensors to determine diverse biological and pharmaceutical molecules and ions.
Oguz Özbek, Caglar Berkel
doaj   +1 more source

Notes on Conformal Invisibility Devices [PDF]

open access: yes, 2006
As a consequence of the wave nature of light, invisibility devices based on isotropic media cannot be perfect. The principal distortions of invisibility are due to reflections and time delays.
Ablowitz M J   +23 more
core   +6 more sources

Parametric Macromodels of Differential Drivers and Receivers [PDF]

open access: yes, 2005
This paper addresses the modeling of differential drivers and receivers for the analog simulation of high-speed interconnection systems. The proposed models are based on mathematical expressions, whose parameters can be estimated from the transient ...
Claudio Siviero   +4 more
core   +3 more sources

Delay and energy consumption analysis of frame slotted ALOHA variants for massive data collection in internet-of-things scenarios [PDF]

open access: yes, 2020
This paper models and evaluates three FSA-based (Frame Slotted ALOHA) MAC (Medium Access Control) protocols, namely, FSA-ACK (FSA with ACKnowledgements), FSA-FBP (FSA with FeedBack Packets) and DFSA (Dynamic FSA).
Alonso Zárate, Jesús   +3 more
core   +3 more sources

Lab-on-Paper Devices for Diagnosis of Human Diseases Using Urine Samples—A Review

open access: yesBiosensors, 2021
In recent years, microfluidic lab-on-paper devices have emerged as a rapid and low-cost alternative to traditional laboratory tests. Additionally, they were widely considered as a promising solution for point-of-care testing (POCT) at home or regions ...
Wei-Chun Tai   +3 more
doaj   +1 more source

Semiconductor quantum dots devices: Recent advances and application prospects [PDF]

open access: yes, 2006
In this paper, a brief review will be given on recent advances in semiconductor quantum dots based optoelectronic devices. The focus will be on two major application areas, i.e., telecom devices and high power light sources, where some device examples ...
Akiyama   +28 more
core   +1 more source

Paper-based biosensors as point-of-care diagnostic devices for the detection of cancers: a review of innovative techniques and clinical applications

open access: yesFrontiers in Oncology, 2023
The development and rapid progression of cancer are major social problems. Medical diagnostic techniques and smooth clinical care of cancer are new necessities that must be supported by innovative diagnostic methods and technologies.
Mehrdad Mahmoodpour   +7 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

Use of a Smartphone as a Colorimetric Analyzer in Paper-based Devices for Sensitive and Selective Determination of Mercury in Water Samples

open access: yesAnalytical Sciences, 2018
A smartphone application, called CAnal, was developed as a colorimetric analyzer in paper-based devices for sensitive and selective determination of mercury(II) in water samples.
P. Jarujamrus   +7 more
semanticscholar   +1 more source

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