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Related Concept Videos

Voltammetry: Stripping Methods01:13

Voltammetry: Stripping Methods

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Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used to determine trace amounts of analytes in solution. These methods involve applying a potential to an electrode and measuring the resulting current.
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
776
Electrogravimetric Analysis: Overview01:30

Electrogravimetric Analysis: Overview

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Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying a potential to a pre-weighed electrode submerged in a solution, which results in the desired substance being deposited through reduction at the cathode or oxidation at the anode. The electrode's weight is recorded after deposition, and the difference in weight gives the analyte's weight in the solution.
To test the completeness of the...
719
Electrodeposition01:08

Electrodeposition

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Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
1.2K
Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

777
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
777
Controlled-Potential Coulometry: Electrolytic Methods01:17

Controlled-Potential Coulometry: Electrolytic Methods

637
Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential...
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Paper-Based Electroanalysis for Emerging Pollutant Detection.

Sima Singh1, Alessandra Glovi1,2, Gabriella Iula1

  • 1Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy.

ACS Electrochemistry
|December 10, 2025
PubMed
Summary
This summary is machine-generated.

Emerging pollutants challenge environmental monitoring. Paper-based electrochemical analytical devices (ePADs) offer a sustainable, low-cost solution using cellulose for rapid, on-site detection and real-time data.

Keywords:
Emerging pollutantsenvironmental monitoringmicrofluidicspaper-based electrochemical sensors (ePADs)sustainable sensing

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Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Materials Science

Background:

  • The scope of environmental pollution has broadened to include emerging pollutants (EPs) and emerging contaminants (ECs), presenting significant challenges for current monitoring strategies.
  • Conventional analytical techniques, while accurate, are often unsuitable for the rapid, on-site detection required for effective environmental management.
  • There is a critical need for innovative, accessible, and sustainable solutions for real-time pollution monitoring.

Purpose of the Study:

  • To introduce paper-based electrochemical analytical devices (ePADs) as a novel approach to environmental sensing.
  • To highlight the role of cellulose materials in enabling green, flexible, and effective ePADs.
  • To explore the potential of advanced ePAD designs, such as 3D origami, for multi-analyte detection and real-time data acquisition.

Main Methods:

  • Development of paper-based electrochemical analytical devices (ePADs) utilizing cellulose materials.
  • Integration of green chemistry principles, flexible electronics, and smart design for ePAD fabrication.
  • Application of 3D origami techniques for enhanced ePAD functionality and multi-analyte sensing capabilities.
  • Pairing ePADs with low-power, smartphone-linked electronics for real-time, cloud-ready data transmission.

Main Results:

  • Cellulose-based ePADs demonstrate effective passive fluid handling and microfluidic capabilities.
  • 3D origami ePADs enable simultaneous detection of multiple analytes.
  • The developed ePADs, when combined with green manufacturing and smart electronics, provide real-time, accessible pollution data.
  • ePADs offer a lightweight, biodegradable, and potentially low-cost alternative to conventional monitoring methods.

Conclusions:

  • Paper-based electrochemical analytical devices (ePADs) represent a significant advancement in environmental monitoring, merging analytical performance with ecological responsibility.
  • Widespread adoption requires standardization, scalable manufacturing, and interdisciplinary collaboration.
  • ePADs offer a vision for a new relationship between technology and the environment, promoting cleaner water, healthier communities, and a more resilient planet.