Jove
Visualize
Contact Us

Related Concept Videos

Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

747
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
747

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A Single-Cell Optically Pumped Intrinsic Gradiometer.

Sensors (Basel, Switzerland)·2026
Same author

Fabrication of sharp silicon hollow microneedles by deep-reactive ion etching towards minimally invasive diagnostics.

Microsystems & nanoengineering·2019
Same author

Flexible three-dimensional electrochemical glucose sensor with improved sensitivity realized in hybrid polymer microelectromechanical systems technique.

Journal of diabetes science and technology·2011
Same author

Flexible glucose sensor utilizing multilayer PDMS process.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2009
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Aug 27, 2025

Manufacturing of a Nafion-coated, Reduced Graphene Oxide/Polyaniline Chemiresistive Sensor to Monitor pH in Real-time During Microbial Fermentation
11:18

Manufacturing of a Nafion-coated, Reduced Graphene Oxide/Polyaniline Chemiresistive Sensor to Monitor pH in Real-time During Microbial Fermentation

Published on: January 7, 2019

8.6K

Potentiometric pH Sensor Based on Flexible Screen-Printable Polyaniline Composite for Textile-Based Microfluidic

Yohan Laffitte1, Bonnie L Gray1

  • 1Microinstrumentation Lab, School of Engineering Science, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.

Micromachines
|September 23, 2022
PubMed
Summary

Researchers developed a flexible, screen-printed pH sensor on textiles for real-time monitoring. This wearable biosensor offers a novel approach for wound healing and sports medicine applications.

Keywords:
flexible pH sensormicro clothing-based analytical systemspolymer nanocompositescreen-printable pH sensorscreen-printable polyaniline compositeskin pH sensortextile-based sensorwearable microfluidicswearable pH sensor

More Related Videos

Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors
09:15

Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors

Published on: November 22, 2016

10.7K
A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

10.5K

Related Experiment Videos

Last Updated: Aug 27, 2025

Manufacturing of a Nafion-coated, Reduced Graphene Oxide/Polyaniline Chemiresistive Sensor to Monitor pH in Real-time During Microbial Fermentation
11:18

Manufacturing of a Nafion-coated, Reduced Graphene Oxide/Polyaniline Chemiresistive Sensor to Monitor pH in Real-time During Microbial Fermentation

Published on: January 7, 2019

8.6K
Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors
09:15

Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors

Published on: November 22, 2016

10.7K
A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

10.5K

Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Analytical Chemistry

Background:

  • Skin pH monitoring is crucial for wound healing, dermatitis detection, and sports medicine.
  • Integrating conventional sensors into wearable platforms presents significant challenges.

Purpose of the Study:

  • To develop a flexible, textile-based, screen-printed electrode system for biosensing.
  • To demonstrate flexible polyaniline (PANI) composite-based potentiometric sensors for real-time pH measurement on a textile substrate.

Main Methods:

  • Screen-printing of flexible polyaniline (PANI) composite-based potentiometric sensors on a textile substrate.
  • Optimization of PANI/dodecylbenzene sulfonic acid/screen-printing ink composite.
  • Comparison of sensor performance with electropolymerized and drop-cast PANI sensors using open circuit potential measurements.
  • Integration of the sensor into a screen-printed microfluidic channel.

Main Results:

  • Optimized PANI composite sensors exhibited high sensitivity between pH 3-10.
  • A PANI emeraldine base composite showed linear sensitivity of -27.9 mV/pH, exceeding previous flexible screen-printed sensors.
  • A PANI emeraldine salt composite demonstrated even higher sensitivity (-42.6 mV/pH), though with less linearity.
  • The sensor was successfully integrated with textile-based microfluidic channels for sample isolation.

Conclusions:

  • This work presents the first fully screen-printed flexible PANI composite pH sensor on a textile substrate.
  • The developed sensor system is suitable for wearable, micro cloth-based analytical devices.
  • The sensor offers potential for real-time monitoring in various biomedical applications.