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Size distribution of zinc oxide nanoparticles (ZNPs), titanium oxide nanoparticles (TNPs) and their mixture in deionized water (100 ppm). Size distribution was measured after the preparation of suspension in deionized water on the basis of number-weighted distribution. (A) ZNPs, (B) TNPs, (C) mixture of ZNPs (50 ppm) and TNPs (50 ppm).
