Figure 7.
PeakForce Tapping AFM images of halloysite and halloysite/keratin hybrids suspended in aqueous solvent at variable pH [(a,d)—HNT; (b,e)—HNT/keratin pH = 4; (c,f)—HNT/keratin pH = 6]. (a–c)—topography; (d–f)—adhesion).
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