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Nanotechnology

Breakthrough in Nanotechnology: Researchers Develop Non-Invasive Temperature Sensing Method Using Nanodiamonds

Strategic Insights

— 1 min read

Researchers from the National University of Singapore have made a significant breakthrough in the field of nanotechnology, developing a non-invasive temperature sensing method using nanodiamonds with nitrogen-vacancy (NV) centers. This achievement has the potential to revolutionize various fields, including medicine, materials science, and engineering. The researchers, led by Andrew A. Bettiol, created a novel method for uniform coating of separated nanodiamonds via a thin polymer-assisted electrostatic self-assembly process. This method allows for large-scale coating at low cost under ambient conditions, paving the way for accurate and non-invasive temperature sensing.

Key Takeaways:

  • Researchers from the National University of Singapore developed a non-invasive temperature sensing method using nanodiamonds with nitrogen-vacancy (NV) centers.
  • The method involves uniform coating of separated nanodiamonds via a thin polymer-assisted electrostatic self-assembly process.
  • This technique allows for large-scale coating at low cost under ambient conditions.
  • The coated nanodiamonds exhibited a low measurement error of 1.32 degrees C in thermal mapping between 27 and 80 degrees C.
  • The separated ND coating shows more than a sevenfold reduction in thermal spreading compared to a 100 nm thick ND film.
  • The research has been peer-reviewed and published in the journal Nanoscale.
  • Financial supporters for the research include the Ministry of Education, Singapore, Agency for Science Technology & Research (A*STAR), and the National University of Singapore.
  • The research team includes Andrew A. Bettiol, Chengyuan Yang, Aliki S. Rotelli, Hui Rong Sun, Haidong Liang, Vignesh Suresh, Vinh Xuan Ho, and Ee Jin Teo.

Statistics:

  • 1,74 x 10^9 cm^-2 - controlled area density of ND coatings.
  • 1.21% - low optical transmission loss of ND coatings.
  • 1.32 degrees C - low measurement error of thermal mapping between 27 and 80 degrees C.
  • 7-fold - reduction in thermal spreading of separated ND coating compared to a 100 nm thick ND film.

Sources:

  • Uniform Coating of Separated Nanodiamonds via Thin Polymer-assisted Electrostatic Self-assembly for Thermal Sensing. Nanoscale, 2025;17(36):20972-20981.
  • NewsRx. Findings on Nanodiamonds Reported by Investigators at National University of Singapore (Uniform Coating of Separated Nanodiamonds via Thin Polymer-assisted Electrostatic Self-assembly for Thermal Sensing). Nanotechnology Weekly. October 13, 2025; p 452.

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