Biosynthesis of silver nanoparticles from Aloe vera leaf extract and antifungal activity against Rhizopus sp. and Aspergillus sp.
By Shreya Medda, A. Hajra, Uttiya Dey, Paulomi Bose, Naba Kumar Mondal. Applied Nanoscience, 2015
257 citations recorded by the source corpus.
Silver nanoparticles are receiving increasing attention in the field of agriculture. This study aims at evaluating the antifungal properties of green synthesised silver nanoparticles (AgNPs) from Aloe vera leaf extract against two pathogenic fungus Rhizopus sp. and Aspergillus sp. Results revealed that synthesised nanoparticles showed strong absorption maximum at 400 nm corresponding to the surface plasmon resonance. The prepared nanoparticles were characterized by SEM, FT-IR and UV–Vis spectroscopy. From the scanning photograph it is clear that particles are heterogeneous in shape such as rectangular, triangular and spherical with uniform distribution. FT-IR study showed sharp absorption peaks at 1,631 and 3,433 cm−1 for amide and alcoholic hydroxide groups, respectively. On the other hand, synthesised silver nanoparticles showed highest antifungal activity against Aspergillus sp. than Rhizopus sp. by application of 100 μL of 1 M silver nanoparticles with maximum inhibition of the growth of fungal hyphae. However, microscopic observation revealed that synthesised nanoparticles caused detrimental effects on conidial germination along with other deformations such as structure of cell membrane and inhibited normal budding process of both the tested species. Therefore, it has been concluded that Aloe vera leaf extract origin silver nanoparticles have tremendous potentiality towards controlling pathogenic fungus. However, further research is needed to check the efficacy of size-dependent AgNPs on different species of fungus.
Subfields: Food Science, Materials Chemistry, Plant Science
View Paper: https://www.semanticscholar.org/paper/dcf818816b8cfc51db084a31f23bfce11f5baed2
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In Food Science
In Materials Chemistry
- Iqra Sadaf
- V. Ramasamy
- M. Zubair Rafique
- K. Anandalakshmi
- M. Rafique
- Muhammad Mohsin Tahir
- J. Venugobal
In Plant Science
Citations in the corpus
- Extracellular biosynthesis of silver nanoparticles using Streptomyces griseoplanus SAI-25 and its antifungal activity against Macrophomina phaseolina, the charcoal rot pathogen of sorghum (2018, methodology): “The biosynthesized AgNPs were examined against M. phaseolina by agar well diffusion method as per Medda et al. (2015) with slight modifications.”
- A review on green synthesis of silver nanoparticles and their applications (2017, background): “…(Rajagopal et al. 2015) Calotropis procera AgNO3 Latex serum extract 12.33 Spherical (Mohamed et al. 2014) Aloe vera AgNO3 Leaves extract 70 Spherical, rectangular, cubical and triangular (Medda et al. 2015) (continued) composites, nano-biosensing, and agriculture engineering (He et al. 2016).”
- Characterization of silver nanoparticles by green synthesis method using Pedalium murex leaf extract and their antibacterial activity (2016, background): “…(Dipankar and Murugan 2012), Tribulus terrestris (Gopinath et al. 2012), Azadirachta indica (Khan et al. 2012), Cycas circinalis, Ficus amplissima, Commelina benghalensis, Lippia nodiflora (Johnson and Prabu 2015), Ocimum sanctum (Garima Singhal et al. 2011) and Aloe vera (Medda et al. 2014).”