RETRACTED: Biosynthesis and characterization of iron oxide nanoparticles from Mentha spicata and screening its combating potential against Phytophthora infestans

• DOI: 10.3389/fpls.2022.1001499
• Publication Date: 2022-09-26T06:38:21Z
• Authors: Sidra Khan; Gulfam Bibi; Shazia Dilbar; Aneela Iqbal; Maaz Ahmad; Ahmad Ali; Zahid Ullah; Mariusz Jaremko; Javed Iqbal; Mohammad Ali; Ihtishamul Haq; Iftikhar Ali
• Keywords: Absorbance; Iron oxide nanoparticles; Thermogravimetric analysis; Phytophthora infestans

Plant pathogens cause serious diseases to agricultural crops which lead food insecurity in the world. To combat plant pathogens, various strategies have been developed including use of agrochemicals. The overuse these chemicals is now leading pesticide-resistant capability pathogens. overcome this problem, modern nanobiotechnology offers production alternative nano drugs. In study, we used Mentha spicata for synthesis iron oxide nanoparticles using green method. Fe 2 O 3 NPs was confirmed through characterizations. UV–Vis analysis detected a characteristic absorbance at spectral range 272 nm. SEM micrographic magnifications displayed circular or rod-shaped with size ranging from 21 82 elemental EDX characterization showed intense peaks weight percent 57, 34.93, and 8.07 Fe, O, and, Cl respectively. TGA that loss 44–182, 500, 660°C no further modification indicates thermal stability nanoparticles. FTIR spectrum uncalined detects bands 3331, 1625, 1,437 cm −1 hydroxyl group. After calcination two 527 434 were observed Fe-O. antimicrobial vitro study maximum growth inhibition Phytophthora infestans by concentration 100 μg ml -PE NPs. Therefore, resulted bio-stable can be as agents.