Sushant Anand and his research associates are involved in their work on the oil-water mixtures or what we generally refer to as the emulsions. Sushant Anand is an associate professor at MIE. The research is now at a new level with the creation of ultra-small nanoemulsion. The nanoparticles form these nanoemulsions. The nanoparticles undergo self-assembly around the droplets.

If you follow, the natural step of making nanoparticles, the protocol is very long. However, with whole-hearted dedication, Anand and his associates have summed up the entire process into a single-step technique. The nanoemulsions formed from this technique are comparatively faster, smaller and efficient in energy.

Sushant Anand conveys, “Nanotechnology has a huge role to play in dealing with many problems in today’s time. Take oil-water emulsions as an example. Going ‘nano’ with droplet sizes can make a huge difference in the shelf-life of many emulsions based products like cosmetics, food products, drug delivery, and many multi-billion dollar industries. Typically surfactant molecules are used to prevent drops from coming together. But such particles can have adverse effects in many cases. So, there is a growing interest in making surfactant-free nanoparticle stabilised emulsions.”

The research team led by Sushant faced struggles in developing nano-particle based droplets for nanoemulsions. This is known as the Pickering emulsions. Sushant further adds, “Making such emulsions with droplets in nanoscales has been a really big challenge for many decades.”

His previous research contributions were focused on nanoemulsion creation. Here, the droplets were stabilised using surfactants. Anand and his associates were eager to know whether the same technique can be applied for making Pickering emulsions and hence laid the foundation for the current studies.

Dong Jin Kang concludes, “Emulsions can be made by many different ways, but unfortunately what works for surfactants, does not necessarily works with nanoparticles. So there was no guarantee that we would succeed. But comes out that the new technique did succeed in meeting its objective.”

The research findings make their way into journal ACS Applied Materials and Interfaces.