Fig. 4From: Magnetic core–shell Carrageenan moss/Fe3O4: a polysaccharide-based metallic nanoparticles for synthesis of pyrimidinone derivatives via Biginelli reactionTEM micrographs showing the cuticle of a Chondrus crispus frond at sections from a tip, b middle and c base (Reprint by permission from www.nature.com/scientificreports https://doi.org/10.1038/srep11645) and d–f Fe3O4@CM with 30 nm magnificationBack to article page