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UV transmittance results in UVA and UVB areas of pure cream (NIVEA® Soft) mixed with 1 or 5 wt% lignin nanoparticles (LNPs). Black: pure cream. Green: beech. Red: spruce. Blue: wheat straw. Solid line: 1 LNPs wt%. Coarse dotted line: 5 wt% LNPs.
