A fluorescence film sensor film was prepared from 2,2,6,6-tetramethyl-1-piperidinyloxy radical-oxidized cellulose nanofiber, which was chemically immobilized by the Cu2+- or Cs+-selective ligand, 3,5-bis(((2-hydroxynaphthalen-1-yl)methylene)amino)benzoic acid. The potential of the current sensor is that it is a film-type sensor with facile removal from test water without leaving sensing residue in the water.
- Astrid Rahmawati
- Chuang-Fu Shih
- Toyoko Imae
