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Optical microscope image of porcine cadaver skin surface after application of microneedle containing patch (A) and histological section of porcine cadaver skin after insertion of coated microneedle (B) (in vitro; array coating: 7.2 μg FITC-BSA, 42.5 μg PCPP, 1.3 μg Red 40; application time 15 min).
