Fig. 3
From: An emerging role of microplastics in the etiology of lung ground glass nodules
In situ detection of a cellulose microfiber in the tumor lung tissue slice. a the whole tissue section image under Vis spectrum; b the whole tissue section image under IR spectrum; c microfiber detected under IR spectrum; d microfiber detected under Vis spectrum; e detected dots with confirmed cellulose composition, the characteristic peak around 1200Â cm-1 within the red rectangle indicated the composition of cellulose; f strong signals (in white color) with the specific cellulose characteristics. Note: Three paired lung tissues (3 normal and 3 tumor tissues) were examined for in situ fibers, but only a single fiber was found in one normal tissue slice