Fig. 3From: Fluorescent variant of silica nanoparticle powder synthesised from rice husk for latent fingerprint developmentFingerprints developed (e–h) with pink SNP powders formulated with different amount of starch a 9 to 1, b 8 to 2, c 7 to 3 and d 6 to 4 parts of SNP powder to starch ratioBack to article page