Anthocyanin‐loaded bacterial cellulose nanofiber as a green sensor for monitoring the selective naked eye and visual detection of Al(III) Ions

The present study developed a green metallochromic sensor that detects aluminium (Al(III)) ions in solution and solid state using anthocyanin extract from purple onion peels embedded bacterial cellulose nanofibers (BCNFs). CIE Lab colour parameters demonstrated Al(III) binding causes sensible change colour. A variety of metal including K+, Mn2+, Cu2+, Hg2+, Cr2+, Pb2+ Ni2+ were used to challenge the determine its selectivity. findings suggested showed excellent selectivity toward ion. is quantitatively detected by sensing method with detection limits range between 30–200 20–300 ppm state, respectively, through observation naked eye. fabricated promising be simple, cheap, mobile easily operable for real-time on-site food matrices.