Letter to the Editor:

Comment on ‘Novel biodegradable polyurethanes reinforced with green nanofibers for applications in tissue engineering. Synthesis and characterization’

“…However, this information is missing from the article. An investigation of biocellulose nanofibers studies cited in the article reveals the fact that those (References [6][7][8][9][10][11][12]14] in Nakhoda and Dahman [1] ) are the corresponding author's own publications. None of these cited articles explain why the nanofibers are termed as 'green.…”

“…[9,10] Without firm evidence of the safety of processes or products, they should not be called green. [11] Hence, an important question is "Why were the nanofibers in question defined as 'green'? "…”