“…Sensors based on cellulose, which is a well-known natural biopolymer, are of particular interest [ 1 , 2 , 3 , 4 , 5 ]. The main advantages of cellulose are its availability, biodegradability, and low price [ 4 , 5 , 6 , 7 , 8 ]. Another merit of cellulose is that it is relatively easy to process and has a high modification potential, allowing cellulose and its derivatives (film, fibers, or papers) to be endowed with new features (e.g., antibacterial, catalytic conductive, luminescent, plasmonic) [ 9 , 10 , 11 , 12 ].…”