An extracellular enzyme synthesizes narrow-sized silver nanoparticles in both water and methanol

- Cellulase directed synthesis of Ag-NP in water and methanol is presented.
- The homogenous size-distribution of Ag-NP in water.
- Nanoparticle size-distribution is found to be solvent-polarity dependent.
- Secondary structure of enzyme present in Ag-NP/cellulase is completely lost.
- Insight on the heavy metal ions regulated enzymatic depolymerization of cellulose.