Oxidized methyl nanocellulose (MeCellosic acid, MCA) has been prepared by using catalytic oxidation of methyl cellulose (MC). As cellulose oxidizes and particle sizes become smaller, the most notable changes was the signficantly reduced viscosity from 4000 cP of 2% MC solution to 0.9 cP of 4% MCA solution but similar surface tenson was observed: 52 mN/m at 0.3 % MC solution and 50 mN/m at 0.5 MCA solution. Due to nano dimesions, low surface tension, and significantly reduced viscosity, MCA shows foamability to generate bubbles. Considering that nanocellulose is a liquid crystalline material, MCA would be a water-soluble glucose-based surfactant.