Catalytic and fluorescence studies with copper nanoparticles synthesized in polysorbates of varying hydrophobicity

- CuNPs synthesized in non-ionic polysorbates.
- CuNPs characteristics depend on HLB value.
- Metallic or oxide nanoparticle formation guided by polysorbate concentration.
- Catalytic efficiency and fluorescence quenching by CuNPs is correlated.