Fig. 4
From: Lignin nanoparticle-enhanced PVA foils for UVB/UVC protection

Figure SEM micrographs of the foils with nanoparticles prepared from eucalyptus kraft lignin (EKL).
From: Lignin nanoparticle-enhanced PVA foils for UVB/UVC protection

Figure SEM micrographs of the foils with nanoparticles prepared from eucalyptus kraft lignin (EKL).