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Enhanced larvicidal, antibacterial, and photocatalytic efficacy of TiO 2 nanohybrids green synthesized using the aqueous leaf extract of Parthenium hysterophorus.
- Source :
-
Environmental science and pollution research international [Environ Sci Pollut Res Int] 2018 Apr; Vol. 25 (11), pp. 10328-10339. Date of Electronic Publication: 2017 May 23. - Publication Year :
- 2018
-
Abstract
- Titanium dioxide nanoparticles are emerging as a biocompatible nanomaterial with multipurpose bioactivities. In this study, titanium dioxide (TiO <subscript>2</subscript> ) nanoparticles were effectively synthesized using the aqueous leaf extracts of Parthenium hysterophorus prepared by microwave irradiation. TiO <subscript>2</subscript> nanoparticles were fabricated by treating the P. hysterophorus leaf extracts with the TiO <subscript>4</subscript> solution. Biologically active compounds such as alcohols, phenols, alkanes, and fluoroalkanes were involved in bioreduction of TiO <subscript>4</subscript> into TiO <subscript>2</subscript> . The formation of green-engineered TiO <subscript>2</subscript> nanoparticles was confirmed by UV-vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), and energy-dispersive X-ray (EDX) spectroscopy and further characterized by X-ray diffraction (XRD) studies. UV-vis spectroscopy analysis showed maximum absorbance at 420 nm due to surface plasmon resonance of synthesized TiO <subscript>2</subscript> NPs. FTIR spectrum of the engineered TiO <subscript>2</subscript> NPs showed the presence of bioactive compounds in the leaf extract, which acted as capping and reducing agents. FESEM exhibited an average size of 20-50 nm and a spherical shape of TiO <subscript>2</subscript> NPs. EDX analysis indicated the presence of TiO <subscript>2</subscript> NPs by observing the peaks of titanium ions. XRD results pointed out the crystalline nature of engineered TiO <subscript>2</subscript> NPs. The larvicidal activity of TiO <subscript>2</subscript> NPs was studied on fourth instar larvae of dengue, Zika virus, and filariasis mosquito vectors Aedes aegypti and Culex quinquefasciatus. Antimicrobial efficacy of TiO <subscript>2</subscript> NPs was assessed on clinically isolated pathogens Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, Proteus vulgaris, and Staphylococcus epidermidis. Besides, we found that TiO <subscript>2</subscript> NPs are able to quickly degrade the industrially harmful pigments methylene blue, methyl orange, crystal violet, and alizarin red dyes under sunlight illumination. Overall, this novel, simple, and eco-friendly approach can be of interest for the control of vector-borne diseases, as well as to formulate new bactericidal agents and to efficiently degrade dye solutions in the polluted areas.
- Subjects :
- Aedes
Animals
Anti-Bacterial Agents chemistry
Anti-Infective Agents chemistry
Asteraceae
Culex
Mosquito Vectors
Parthenogenesis
X-Ray Diffraction
Anti-Bacterial Agents pharmacology
Anti-Infective Agents pharmacology
Azo Compounds chemistry
Insecticides chemistry
Larva drug effects
Plant Extracts chemistry
Silver chemistry
Titanium chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1614-7499
- Volume :
- 25
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Environmental science and pollution research international
- Publication Type :
- Academic Journal
- Accession number :
- 28537028
- Full Text :
- https://doi.org/10.1007/s11356-017-9177-0