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AAPS PharmSciTech. 2006 Mar;7(1):E10. doi: 10.1208/pt070102. Epub 2017 Mar 08.

Artemisia arborescens L essential oil-loaded solid lipid nanoparticles for potential agricultural application: Preparation and characterization.

AAPS PharmSciTech

Francesco Lai, Sylvia A Wissing, Rainer H Müller, Anna M Fadda

Affiliations

  1. Dipartimento Farmaco Chimico Tecnologico, Universitá degli Studi di Cagliari, Via Ospedale 72, 09124, Cagliari, Italy.
  2. Department of Pharmaceutical Technology, Biotechnology and Quality Management, The Free University of Berlin, Kelchstr, 31, D-12169, Berlin, Germany.
  3. Dipartimento Farmaco Chimico Tecnologico, Universitá degli Studi di Cagliari, Via Ospedale 72, 09124, Cagliari, Italy. [email protected].

PMID: 28290017 DOI: 10.1208/pt070102

Abstract

The aim of this study was to formulate a new delivery system for ecological pesticides by the incorporation of Artemisia arborescens L essential oil into solid lipid nanoparticles (SLN). Two different SLN formulations were prepared following the high-pressure homogenization technique using Compritol 888 ATO as lipid and Poloxamer 188 or Miranol Ultra C32 as surfactants. The SLN formulation particle size was determined using Photon correlation spectroscopy (PCS) and laser diffraction analysis (LD). The change of particle charge was studied by zeta potential (ZP) measurements, while the melting and recrystallization behavior was studied using differential scanning calorimetry (DSC). In vitro release studies of the essential oil were performed at 35°C. Data showed a high physical stability for both formulations at various storage temperatures during 2 months of investigation. In particular, average diameter of Artemisia arborescens L essential oil-loaded SLN did not vary during storage and increased slightly after spraying the SLN dispersions. In vitro release experiments showed that SLN were able to reduce the rapid evaporation of essential oil if compared with the reference emulsions. Therefore, obtained results showed that the studied SLN formulations are suitable carriers in agriculture.

Keywords: SLN; agriculture; in vitro release; natural pesticide; solid lipid nanoparticles

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