In recent years, nanobubble technology has drawn great attention due to its extensive incorporation to substantial aspects of science and technology such as water treatment, drug delivery enhancement to cells, solvent and nutritional supplements manufacturing and many others. Bulk nanobubbles may be present in most aqueous solutions, possibly being constantly created by cosmic radiation and agitation and surface nanobubbles are present at most surfaces [1,2]. But, for utilizing these nanobubbles in a definitive way it's important to know whether an added amount of solution making substance has constructive or adverse effect on the nanobubble. In this work, the change of number density of nanobubbles in ethanol-water solution was studied by varying the ethanol concentration.
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