Acaricidal activity of synthesized titanium dioxide nanoparticles using Calotropis gigantea against Rhipicephalus microplus and Haemaphysalis bispinosa
| Autor: | Abdul Abdul Rahuman, Chidambaram Jayaseelan, Kokati Venkata Bhaskara Rao, Chinnaperumal Kamaraj, Thirunavukkarasu Santhoshkumar, Kanayairam Velayutham, Asokan Bagavan, Moorthy Iyappan, Gandhi Elango, Sampath Marimuthu, Loganathan Karthik, Chinnadurai Siva, Arivarasan Vishnu Kirthi |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Male
Ixodidae Scanning electron microscope Rhipicephalus (Boophilus) microplus Metal Nanoparticles Nanoparticle Flowers Haemaphysalis bispinosa Botany Rhipicephalus Animals Calotropis gigantean Particle Size Fourier transform infrared spectroscopy Acaricides Electron microscopic study Titanium Medicine(all) X-ray diffraction techniques Aqueous solution biology Filter paper Plant Extracts Chemistry Titanium dioxide nanoparticles General Medicine biology.organism_classification Calotropis Rhipicephalus microplus Female Calotropis gigantea Nuclear chemistry |
| Zdroj: | Asian Pacific Journal of Tropical Medicine. (9):682-688 |
| ISSN: | 1995-7645 |
| DOI: | 10.1016/S1995-7645(13)60118-2 |
| Popis: | Objective To assess the acaricidal activity of titanium dioxide nanoparticles (TiO 2 NPs) synthesized from flower aqueous extract of Calotropis gigantea ( C. gigantea ) against the larvae of Rhipicephalus ( Boophilus ) microplus [ R. (B.) microplus ] and the adult of Haemaphysalis bispinosa ( H. bispinosa ). Methods The lyophilized C. gigantea flower aqueous extract of 50 mg was added with 100 mL of TiO(OH) 2 (10 mM) and magnetically stirred for 6 h. Synthesized TiO 2 NPs were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy dispersive X-ray spectroscopy (EDX). The synthesised TiO 2 NPs were tested against the larvae of R. (B.) microplus and adult of H. bispinosa were exposed to filter paper impregnated method. Results XRD confirmed the crystalline nature of the nanoparticles with the mean size of 10.52 nm. The functional groups for synthesized TiO 2 NPs were 1 405.19, and 1 053.45 cm −1 for -NH 2 bending, primary amines and amides and 1 053.84 and 1 078.45 cm −1 for C-O. SEM micrographs of the synthesized TiO 2 NPs showed the aggregated and spherical in shape. The maximum efficacy was observed in the aqueous flower extract of C. gigantea and synthesized TiO 2 NPs against R. (B.) microplus (LC 50 =24.63 and 5.43 mg/L and r 2 =0.960 and 0.988) and against H. bispinosa (LC 50 = 35.22 and 9.15 mg/L and r 2 = 0.969 and 0.969), respectively. Conclusions The synthesized TiO 2 NPs were highly stable and had significant acaricidal activity against the larvae of R. (B.) microplus and adult of H. bispinosa . This study provides the first report of synthesized TiO 2 NPs and possessed excellent anti-parasitic activity. |
| Databáze: | OpenAIRE |
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