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A novel detection method of organic vapours has been studied. The vapour of different organic solvents creates a surface tension gradient on the surface of the droplet when the vapour source is brought near the vicinity of the droplet. The surface tension gradient creates a circulation or flow inside the liquid due to solutal Marangoni effect. The circulation of the liquid is electrically detected...
In this paper, a droplet based organic vapour detection technique is discussed. The detection was based on solutal Marangoni effect where a strong circulation of fluid was observed inside a droplet once an organic vapour source was introduced near the vicinity of the droplet surface. The reason behind the rotational motion was the surface tension gradient created on the air-droplet and vapour-droplet...
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