Synthesis of natural nanopesticides with the origin of Eucalyptus globulus extract for pest control

ABSTRACT

Continued use of chemical insecticides causes toxicity to non-target organisms, pest resistance and environmental pollution around the world. Nanocapsules of botanical insecticides are a suitable alternative for this target. The major constituents of Eucalyptus extract were determined by GC-MS: 1,8-cineole (70.94%) and 1,2-benzenedicarboxylic acid (6.08%). The Characterization of nanocapsule was investigated by dynamic light scattering, Zeta potential, scanning electron microscope, optical microscope and FTIR. The mean particle size distribution of nanocapsule is 380 nm and zeta potential of −26.36 ± 5.31 mV was obtained. It could be observed that nanocapsules have a spherical shape. To determine the insecticides of the nanocapsule with loads Eucalyptus extract was impregnated with concentration (0, 10, 15, 25, 35, 50 mg/ml) for 12, 24 and 48-h after exposure. The results indicated, that over time encapsulation exposure from 12 to 48 h, the highest time was comparatively more susceptible (LC₅₀ = 14.93 mg/ml).

GRAPHICAL ABSTRACT

KEYWORDS:

• Nanocapsule
• Eucalyptus globulus extract
• botanical insecticides
• in situ polymerization

Notes on contributors

Zohreh Khoshraftar received M.Sc. degree in applied chemistry from Islamic Azad University- Ardabil branch, Ardabil, Iran, in 2014. She is a Ph.D. Student in Applied Chemistry in Islamic Azad University- Science and Research branch, Tehran, Iran, since 2015. Her main areas of interests are Nano technology, Green chemistry and water treatment.

Ali Akbar Safekordi is a Full Professor of chemical Engineering. He received his Ph.D. from University of Manchester. He published more than 150 papers in international journals. His main areas interests are Food Processing, Mass Transfer Phenomena, Equipment Design and Green Chemistry.

Ali shamel is an Associate Professor of physical chemistry. He published more than 20 papers in international journals. He supervisor of 150 Master Degree and 2 Ph.D. Degree. His main areas interests are nano synthesis, Adsorption, Solvent effect, Kinetics and Green chemistry.

Mohammad Zaefizadeh is an assistant professor of agriculture Faculty of Biology, Ardabil branch, Islamic Azad University, Ardabil, Iran. He published more than 10 papers in international journals.

Disclosure statement

No potential conflict of interest was reported by the authors.