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Fig. 2 | Journal of Nanobiotechnology

Fig. 2

From: A novel inhalable quercetin-alginate nanogel as a promising therapy for acute lung injury

Fig. 2

The characterization and antioxidant property of QU-Nanogel. Spectra of QU-Nanogel, BLK-Nanogel, quercetin and sodium alginate (SA) from different tests: (a) FT-IR. (b) XRD. (c) Morphology, size distribution and zeta potential of QU-Nanogel and BLK-Nanogel. Antioxidant activities test of quercetin and QU-Nanogel: (d) the chemistry structure formula of quercetin. (e) DPPH radical scavenging capacity, (f) total antioxidant capacity with FRAP method; (*) denotes the statistical significance of QU-Nanogel compared with quercetin (*p < 0.05; **p < 0.01)

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