IIT Guwahati researchers develop advanced techniques for rapid evaporation of droplets

The research has been published in “Soft Matter”, a highly reputed journal belonging to the Royal Society of Chemistry

IIT Guwahati researchers develop advanced techniques for rapid evaporation of droplets

Photo for representation only. Source: iStock.

New Delhi, February 17

Researchers from the Indian Institute of Technology (IIT), Guwahati have developed a novel method for rapid evaporation of droplets.

According to the team, the method is aimed at controlling the life-time of droplets containing suspended nanoparticles. Suspended nanoparticles are magnetically active, thereby enabling the flexibility of being under control in a magnetic forcing environment.

The research has been published in “Soft Matter”, a highly reputed journal belonging to the Royal Society of Chemistry.

“The research revealed that the mixing between two droplets can be attenuated significantly under the actuation of the magnetic field. This novel method showed a significant enhancement of around 80 per cent in the overall mixing time between the droplets in comparison to the case where no external force is applied,” said Pranab Kumar Mondal, Assistant Professor, Department of Mechanical Engineering, IIT Guwahati.

“The research outcomes could be potentially beneficial in the area of biomedical diagnostics, whereby rapid and efficient mixing between fluids is of utmost importance.

In addition to that, this research also revealed that the magnetic field can be successfully used in altering the lifetime of a droplet containing suspended magnetic nanoparticles,” he said.

According to the team, the research has shown that the evaporation rate of the droplet can be successfully controlled by varying the applied magnetic field frequency.

“The inferences drawn from this study could have far-reaching implications ranging from biomedical engineering to surface patterning.

“With the advent of miniaturization, effective transfer of mass between species has attracted significant attention of global communities because of its wide range of industrial applicability. In particular, rapid evaporation and mixing between droplets has an extensive range of engineering applications such as biological sample diagnostics, ink-jet printing, surface patterning and many more,” Mondal said. — PTI

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