Janus electrochemistry: Simultaneous electrochemical detection at multiple working conditions in a paper-based analytical device

Aptamer-based origami paper analytical device for electrochemical detection of adenosine.

Paper biosensors: an origami sensor is printed on a single piece of paper, folded into a three-dimensional fluidic device, and encapsulated by thermal lamination. Aptamer is trapped in the fluidic channel, where it binds to the target and releases an enzyme to generate a signal. The device is read out using a digital multimeter.

A Paper-based Analytical Device for Electrochemical Flow Injection Analysis of Glucose in Urine

Paper-based analytical device for electrochemical flow-injection analysis of glucose in urine.

This article describes a new design for a paper-based electrochemical system for flow-injection analysis. Capillary wicking facilitates a gravity-driven flow of buffer solution continuously through paper and nitrocellulose, from a buffer reservoir at one end of the device to a sink at the other. A difference in height between the reservoir and the sink leads to a continuous and constant flow. T...

Paper-Based Analytical Device for Quantitative Urinalysis

Paper-based analytical devices are fluidic chips fabricated with extremely inexpensive materials, namely paper, thereby allowing their use as a zero-cost analytical device in third-world countries that lack access to expensive diagnostic infrastructures. The aim of this review is to discuss: (1) microfluidic paper-based analytical devices (µPADs) for quantitative analysis, (2) fabrication of tw...

Paper-Based Bipolar Electrochemistry

We demonstrate that carbon electrodes screen-printed directly on cellulose paper can be employed to perform bipolar electrochemistry. In addition, an array of 18 screen-printed bipolar electrodes (BPEs) can be simultaneously controlled using a single pair of driving electrodes. The electrochemical state of the BPEs is read-out using electrogenerated chemiluminescence. These results are importan...