Microplasma

Continuous gas phase nucleation of nanoparticles

Size and composition controlled sub 10 nm nanoparticles is achieved with this technique. We have developed the technology to continuously synthesize a variety of nanoparticles with a complete control over mono-dispersity and stoichiometry

Liquid phase synthesis of nanoparticles

With our microplasma technique, we have developed the electrochemistry for synthesizing nanoparticle dispersed in liquids without the use of any reducing agents and catalysts

Tribo-electric charging of materials

We study the fundamental sciences involved with charge transfer between particles. Using chemical engineering principles, we have designed new reactors in which particle to particle and particle to wall charging can be separated.

Direct-write microplasma patterning of thin polymer films

We have developed a new micro-patterning technology that can be used to fabricate functionalized patterns on the surface of thin polymer films.

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Our Recent Work view all projects

ACS Appl. Mater. & Interfaces

A DC atmospheric-pressure microplasma is used to pattern the surface of metal-salt laden polymer thin film to produce conductive features on the surface of the film. The conductivity is independent of the initial metal content in the film.

Nature Communications

Monodispersed sub 5 nm diamond clusters synthesis has been achieved under ambient conditions in a gas phase using a DC microplasma. In-flight in situ control of purity of the synthesized particles have also been demonstrated

J. Am. Chem. Soc.

In this fundamental study we have demonstrated and quantified the reactions taking place at a plasma-liquid interface by decoupling the role of electrons from the plasma and reactive neutral species. The study also explored the role of background gases like N₂, O₂ and Ar.

SankaranLaboratory