**4. Conclusions**

It may be concluded from the above study that BTCA, a tetra carboxylic acid compound, can conveniently be used as precursor to synthesize negatively charged carbon dots. These carbon dots, when loaded into plain chitosan film, cause a drastic fall in the water absorption capacity of the resulting nanocomposite films. A detailed investigation of these CDs-loaded chitosan film is under progress and a detailed report shall be documented soon.
