سنتز، مشخصه یابی و بررسی خواص نانوامولسیون بر پایه اسانس گیاهی زیره

نوع مقاله: مقاله پژوهشی

نویسندگان

1 پژوهشگاه مواد و انرژی، پژوهشکده نانوفناوری و مواد پیشرفته

2 پژوهشگاه مواد و انرژی، پژوهشکده نانوفناوری و مواد پیشرفته، کرج

چکیده

هدف از اجرای این کار، سنتز و بررسی آفت کش گیاهی نانوامولسیون شده به منظور افزایش کارآیی و کاهش مصرف سموم شیمیایی می باشد. در این تحقیق از اسانس گیاهی زیره که سازگار با محیط زیست می باشد و باعث آلودگی محیط زیست و محصولات کشاورزی نمی شود، بجای آفت کش طبیعی استفاده شد. برای تهیه نانوامولسیون ها، اثر چندین پارامتر از جمله میزان درصد ماده سورفاکتانت، زمان سونیکاسیون و غلظت اسانس مورد بررسی قرار گرفت. به منظور بررسی پایداری نانوامولسیون ها، آزمایشات متفاوتی مانند شفافیت نوری، اندازه گیری ویسکوزیته، pH، هدایت الکتریکی بر روی نمونه ها انجام شد. همچنین سایز و مورفولوژی نمونه ها بوسیله آنالیز پراکندگی نور دینامیکی و میکروسکوپ الکترونی عبوری بررسی شد. نتایج حاصله نشان داد که نانوامولسیون های سنتزشده در غلظت های 1 تا 5 درصد دارای پایداری مناسبی بوده (بررسی در مدت 14 ماه)، متوسط اندازه نانوامولسیون های سنتز شده 15 نانومتر می باشند. تست های آفت کشی بر روی نمونه های نانوامولسیون سنتز شده بر پایه اسانس گیاهی زیره، سمیت تماسی علیه شته جالیز (ppm  3461.91= LC50) نشان داد که این سمیت با افزایش غلظت، افزایش معنی داری را بیان می نمود.

کلیدواژه‌ها


عنوان مقاله [English]

Synthesis, Characterization and Investigation of Properties of Nanoemulsion Persian Cumin Essential Oil

نویسندگان [English]

  • Mojgan Heydari 1
  • Mozhgan Bagheri 2
1 Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
2 Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
چکیده [English]

The aim of this research is to synthesize and study on a nanoemulsion bio-organic pesticide for higher efficiency and reducing chemical pesticide use.  In this research, Persian Cumin essential oil were used, which can be applied as bio-organic pesticide and they are biocompatible, harmless to human beings and also animals; do not cause environmental pollution and agricultural products. Then various parameters of surfactant concentration, essential oil percentage, and sonication time were studied in order to prepare nanoemulsion systems. In order to study on physical stability of different nanoemulsion formulations, optical clarity, viscosity, pH and conductivity were measured. The size and morphology of nanoemulsion formulations were then analyzed by dynamic light scattering (DLS) and transmission electron microscopy (TEM). The results showed that the nanoemulsions  in concentration ranges of 1 to 5 %  were stable (study during 14 months) and the mean droplets size of synthesized nanoemulsios was about 15 nm. Pesticide experiments showed that contact toxicity LC50 of synthesized nanoemulsion against Aphis gossypii was obtained 3461.91 ppm, which demonstrated a significant increase in pesticide activity with increasing essential oil concentration.

کلیدواژه‌ها [English]

  • Green Pesticide
  • Persian cumin
  • Nanoemulsion
  • Surfactant
  • ultrasonic

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