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Related Concept Videos

Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
Gas Thermometers and the Kelvin Scale01:22

Gas Thermometers and the Kelvin Scale

The definition of temperature in terms of molecular motion suggests that there should be a lowest possible temperature, where the average kinetic energy of molecules is zero (or the minimum allowed by quantum mechanics). Experiments confirm the existence of such a temperature, called absolute zero. An absolute temperature scale is one whose zero point is absolute zero. Such scales are convenient in science because several physical quantities, such as the volume of an ideal gas, are directly...

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Related Experiment Video

Updated: May 20, 2026

Fabrication and Testing of Photonic Thermometers
08:44

Fabrication and Testing of Photonic Thermometers

Published on: October 24, 2018

Thermometry at the nanoscale.

Carlos D S Brites1, Patricia P Lima, Nuno J O Silva

  • 1Department of Physics, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal. carlos.brites@ua.pt

Nanoscale
|July 6, 2012
PubMed
Summary
This summary is machine-generated.

New nanoscale thermometers offer precise, non-invasive temperature measurements for nanotechnology and biomedicine. This review highlights luminescent and non-luminescent methods, focusing on ratiometric approaches for submicron resolution.

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Area of Science:

  • Nanoscale thermometry
  • Advanced materials science
  • Biomedical sensing

Background:

  • Conventional thermometers are ineffective at the nanoscale.
  • Nanotechnology and biomedicine demand high-resolution temperature measurements.
  • Recent research focuses on developing novel nanoscale thermometers.

Purpose of the Study:

  • To provide a comprehensive overview of recent luminescent and non-luminescent nanoscale thermometers.
  • To emphasize ratiometric thermometers with submicron spatial resolution.
  • To discuss challenges and opportunities in physiological temperature range sensing.

Main Methods:

  • Review of luminescent thermometers (organic dyes, quantum dots, lanthanide ions).
  • Review of non-luminescent thermometers (scanning thermal microscopy, nanolithography, carbon nanotubes, biomaterials).
  • Focus on ratiometric systems including intracellular thermometers, thermoresponsive polymers, mesoporous silica nanoparticles, quantum dots, and lanthanide-based nanoparticles.

Main Results:

  • Overview of diverse nanoscale thermometer types, both luminescent and non-luminescent.
  • Emphasis on ratiometric thermometers achieving spatial resolution below 1 micron.
  • Examples include intracellular thermometers and nanoparticle-based systems.

Conclusions:

  • Nanoscale thermometers are crucial for nanotechnology and biomedicine.
  • Ratiometric approaches offer high spatial resolution for precise temperature mapping.
  • Future development aims for sensitive thermometers in the physiological range with submicron resolution.