Jove
Visualize
Contact Us
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 Concept Videos

Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

2.1K
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...
2.1K

You might also read

Related Articles

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

Sort by
Same author

Metal Films from a Single Source and Their Application in Nanoporous Filtration Synthesis, Electromagnetic Interference Shielding, and Electroadhesion.

ACS omega·2026
Same author

Synthesis of Pd-Integrated Carbon Dot@TiO<sub>2</sub> Thin Film for Photocatalytic Glycerol Reforming Reaction for Producing Hydrogen.

Chemistry, an Asian journal·2025
Same author

Enhanced mid-visible light absorption and long-lived charge carriers in an electronically and structurally integrated BiVO<sub>4</sub>-TiO<sub>2</sub> photoanode for efficient artificial photosynthesis applications.

Nanoscale·2025
Same author

Investigating the visible range photoresponse of an organic single-crystal analogue of the green fluorescent protein.

Nanoscale·2025
Same author

Highly Permselective Contorted Polyamide Desalination Membranes with Enhanced Free Volume Fabricated by mLbL Assembly.

ACS applied materials & interfaces·2025
Same author

Pd(II)-Catalyzed Site-Selective Cross Coupling Reaction: Synthesis of Highly Fluorescent Aryl-Formyl-Chromenes and its Iminoantipyrine Analogues as Selective AChE Inhibitors.

Chemistry & biodiversity·2024

Related Experiment Video

Updated: Mar 13, 2026

Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers
11:43

Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers

Published on: March 24, 2023

2.1K

Polysulfone-Based Polymer Carbon Dot Membrane for Optical Dissolved Oxygen Sensing Application.

Rutuja Kadam1, Gangadhar Hattale1,2, Vishal Virole1,3

  • 1Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, India.

Chemistry, an Asian Journal
|March 12, 2026
PubMed
Summary

A new polymer carbon dot (PCD) offers a metal-free, nontoxic solution for optical dissolved oxygen (DO) sensing. This material enables precise, real-time DO monitoring with improved stability and response times.

Keywords:
decay lifetimedissolved oxygenhydrothermal methodpolymer carbon dotspolysulfone‐based membrane

More Related Videos

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

9.0K
Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System
08:35

Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System

Published on: December 16, 2019

9.9K

Related Experiment Videos

Last Updated: Mar 13, 2026

Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers
11:43

Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers

Published on: March 24, 2023

2.1K
Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

9.0K
Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System
08:35

Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System

Published on: December 16, 2019

9.9K

Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Biomedical Engineering

Background:

  • Precise dissolved oxygen (DO) monitoring is crucial for industrial, environmental, and biomedical fields.
  • Current DO sensing methods face limitations like high cost, slow response, and instability.
  • Optical DO sensing often relies on expensive, photobleaching-prone metal complexes.

Purpose of the Study:

  • To develop a novel, metal-free polymer carbon dot (PCD) for lifetime-based optical dissolved oxygen (DO) sensing.
  • To evaluate the performance of PCDs and a polysulfone-embedded PCD (PSF_PCD) membrane for DO monitoring.
  • To address limitations of existing DO sensing technologies.

Main Methods:

  • Synthesized metal-free, fluorescent polymer carbon dots (PCDs) via a hydrothermal method.
  • Characterized PCDs for emission quantum yield, decay-lifetime, and response to DO concentrations (0.7–12.7 mg/L).
  • Embedded PCDs into a polysulfone matrix to create a PSF_PCD membrane, assessing its properties (decay lifetime, surface energy, pore size).

Main Results:

  • The synthesized PCD exhibited high quantum yield (24.32%) and a long decay-lifetime (10.43 µs).
  • PCD demonstrated a linear response to DO levels with a Stern-Volmer constant of 0.1115.
  • The PSF_PCD membrane showed enhanced properties, including a decay lifetime of 9.4 µs and an average pore diameter of 5 nm.

Conclusions:

  • The novel polymer carbon dot (PCD) is a promising, metal-free material for optical dissolved oxygen (DO) sensing.
  • The PSF_PCD membrane offers improved characteristics for enhanced oxygen diffusion and sensor performance.
  • These findings highlight the potential of PCDs for robust, real-time, and long-term DO monitoring applications.