Efficacy of Nano-Encapsulated Mandarin Oil using (Polyethylene Oxide/Polyacrylamide) and Gamma Irradiation against Culex pipiens Larvae
Hassan, R., Sileem, T., Sayed, W., Ghobashy, M. (2024). Efficacy of Nano-Encapsulated Mandarin Oil using (Polyethylene Oxide/Polyacrylamide) and Gamma Irradiation against Culex pipiens Larvae. EKB Journal Management System, 16(1), 51-61. doi: 10.21608/eajbsf.2024.345753
Reda S. Hassan; Thanaa M. Sileem; Waheed A. A. Sayed; Mohamed M. Ghobashy. "Efficacy of Nano-Encapsulated Mandarin Oil using (Polyethylene Oxide/Polyacrylamide) and Gamma Irradiation against Culex pipiens Larvae". EKB Journal Management System, 16, 1, 2024, 51-61. doi: 10.21608/eajbsf.2024.345753
Hassan, R., Sileem, T., Sayed, W., Ghobashy, M. (2024). 'Efficacy of Nano-Encapsulated Mandarin Oil using (Polyethylene Oxide/Polyacrylamide) and Gamma Irradiation against Culex pipiens Larvae', EKB Journal Management System, 16(1), pp. 51-61. doi: 10.21608/eajbsf.2024.345753
Hassan, R., Sileem, T., Sayed, W., Ghobashy, M. Efficacy of Nano-Encapsulated Mandarin Oil using (Polyethylene Oxide/Polyacrylamide) and Gamma Irradiation against Culex pipiens Larvae. EKB Journal Management System, 2024; 16(1): 51-61. doi: 10.21608/eajbsf.2024.345753

Efficacy of Nano-Encapsulated Mandarin Oil using (Polyethylene Oxide/Polyacrylamide) and Gamma Irradiation against Culex pipiens Larvae

Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control
Volume 16, Issue 1, June 2024, Page 51-61  XML PDF (894.34 K)
Document Type: Original Article
DOI: 10.21608/eajbsf.2024.345753
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Authors
Reda S. Hassan1; Thanaa M. Sileem1; Waheed A. A. Sayed1; Mohamed M. Ghobashy2
1Biological Applications Department, Nuclear Research Centre- Egyptian Atomic Energy Authority. Cairo, Egypt.
2Radiation Research of Polymer Chemistry Department, National Center of Radiation Technology, Egyptian Atomic Energy Authority, Cairo, Egypt. Cairo, Egypt.
Abstract
Nano-encapsulation of essential plant oils may prove to be the most effective approach to overcome their application challenges against insect pests. Larvicidal properties of polyethylene oxide/polyacrylamide (PEO/PAAM) nanogels of mandarin essential oil (MEO) against Culexpipiens larvae were investigated. The nano-gel was prepared using an intramolecular crosslinking method initiated by gamma irradiation. The resulting mandarin essential oil (PEO/PAAm) nanogel (MEON) exhibited monodispersity, a relatively small size distribution, and a low negative surface charge of -1.1 mV, suggesting enhanced stability and reduced electrostatic interactions. The 2nd instar larvae were more sensitive to MEON than the 3rd and 4th instar larvae at the lower doses of 10 and 15 ppm. The LC50 and LC99 for the MEON were (11.5 and 18.4 ppm) for 2nd instar larvae; (14.5 and 23.6 ppm) for 3rd instar larvae; and (15.3 and 33.8 ppm) for the 4th instar larvae, respectively, at 48 hours after treatment. These results shed light on MEON's physical attributes, surface qualities, and biological assay and suggest that it might be a useful substance for Culex pipiens management. 
Keywords
Nano-gel; mosquito; Larvicide; mortality-responses; physical characteristics
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