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(A) Transmittance at 650 nm of dispersions containing mucin in the presence of Man-LPHFNPs [0.1 mg/mL blue; 0.5 mg/mL orange], LPHFNPs [0.1 mg/mL red; 0.5 mg/mL green], and chitosan [0.5 mg/mL, black]. (B) Complex viscosity of artificial mucus alone (black) and treated with LPHFNPs 0.1 mg/mL (red) and Man-LPHFNPs 0.1 mg/mL (blue).
