Fig. 2From: Low molecular weight sulfated chitosan efficiently reduces infection capacity of porcine circovirus type 2 (PCV2) in PK15 cellsSurface morphology and micro-analysis (SEM–EDS) of Chi-C and Chi-S samples. LMW Chi-C (panel A, B); LMW Chi-S (panel C, D); HMW Chi-C (panel E, F) and HMW Chi-S (panel G, H). The colored represents elemental composition of analyzed region on the sample (green = oxigen; blue = nitrogen; red = carbon; pink = sulfur)Back to article page