Fluorescent Nano-Diamonds

About Fluorescent Nano-Diamonds: 

• These are nanometre-sized diamonds made of carbon nanoparticles.
• Properties
  • They are produced in a high temperature and high pressure process.
  • FNDs are stable under light and aren’t toxic to living things.
  • FNDs don’t blink when irradiated for a long time.
  • Their fluorescence lifespan is greater than 10 nanoseconds (ns) — a relatively long duration — which makes them better than quantum dots.
  • FNDs can also be doped to enhance their electrical, magnetic, thermal, and/or optical properties.
• Applications
  • They have many applications in high-resolution imaging, microscale temperature sensing, and correlative microscopy, among others.
  • Medical Diagnostics: In biology, scientists use FNDs to track cells and their progeny over long periods.
  • They can be used as sensors in many high-value industries and strategic sectors.
  • FNDs containing nitrogen vacancy (NV) − centres can be used to produce the macroscopic version of the quantum superposition of electrons.

Q1: What is Fluorescence?

It is the ability of certain chemicals to give off visible light after absorbing radiation which is not normally visible, such as ultraviolet light.

Source: Scientists spin diamonds at a billion RPM to test the limits of physics

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