Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

You might also read

Related Articles

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

Sort by

Same author

Dysregulation of Human ClpP Using Small Molecules with Piperazine-Based Scaffold for Diffuse Intrinsic Pontine Glioma Therapy Validated by Patient-Derived Tumor Organoids.

Journal of medicinal chemistry·2026

Same author

Ultrafast photoreduction driven by interfacial spin exchange in manganese-doped quantum dots.

Nature communications·2026

Same author

Interplay of Conventional and Spin-Exchange Auger Recombination in Magnetically Doped Quantum Dots.

ACS nano·2026

Same author

Tailoring light emission in colloidal nanocrystals through lattice distortion engineering.

Nature communications·2026

Same author

Vitiligolike Leukoderma Associated With Chronic Unilateral Topical Ophthalmic Atropine and Dorzolamide.

JAMA ophthalmology·2026

Same author

Exploring alternatives to tumor tissue for BRCA1/2 next-generation sequencing testing in high-grade serous ovarian cancer: A 34-case series of malignant ascites.

Cancer cytopathology·2026

Search research articles

Related Experiment Video

Updated: Mar 9, 2026

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

Single-Particle Ratiometric Pressure Sensing Based on "Double-Sensor" Colloidal Nanocrystals.

Monica Lorenzon¹, Valerio Pinchetti¹, Francesco Bruni¹

¹Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca , via Cozzi 55, I 20125 Milano, Italy.

|December 30, 2016

Summary

This study introduces a novel ratiometric pressure sensitive paint (r-PSP) using a single two-color emitter. This innovation overcomes limitations of traditional paints, enhancing oxygen sensing sensitivity and stability.

Keywords:

Ratiometric oxygen sensing core/shell dot-in-bulk nanocrystals dual color emission photocharging pressure sensitive paints

More Related Videos

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Published on: December 2, 2022

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Published on: June 28, 2024

Related Experiment Videos

Last Updated: Mar 9, 2026

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements

Published on: December 2, 2022

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Published on: June 28, 2024

Area of Science:

Materials Science
Nanotechnology
Optical Sensing

Background:

Ratiometric pressure sensitive paints (r-PSPs) are optical probes for monitoring oxygen in complex environments.
Traditional r-PSPs use mixtures of oxygen-insensitive and oxygen-responsive chromophores.
Limitations include differing temperature dependencies, cross-readout, and phase segregation.

Discussion:

A novel "double-sensor" r-PSP is presented, utilizing a single two-color emitter (CdSe/CdS nanocrystals).
This design features two spectrally separated emission bands with opposing responses to oxygen pressure.
The core and shell states of the nanocrystals exhibit red and green luminescence, respectively, with intensity changes modulated by oxygen partial pressure.

Key Insights:

The new r-PSP design eliminates limitations associated with chromophore mixtures, such as cross-readout and differing temperature dependencies.
Demonstrates a strong, reversible ratiometric response at the single-particle level.
Achieves over 100% enhancement in pressure sensitivity compared to traditional ratiometric sensor pairs.

Outlook:

The developed r-PSPs show suppressed cross-readout due to zero spectral overlap between emission bands.
Exhibits a temperature-independent ratiometric response across a 0-70 °C range.
This technology offers a promising platform for advanced oxygen flow monitoring in various applications.