Larvicidal, super hydrophobic and antibacterial properties of herbal nanoparticles from Acalypha indica for biomedical applications

Karthik, S.; Rangaraj, Satyapal; Vinoth, M.; Srither, S. R.; Manivasakan, Palanisamy; Rajendran, V.; Valiyaveettil, Suresh

doi:10.1039/c7ra05697d

Cited by 26 publications

(3 citation statements)

References 39 publications

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“…Electron microscopy gives an exact information about the size, structure, shape, spatial resolution, and composition of ZnO-NPs [ 29 ]. The following techniques UV–Vis spectrophotometer, SEM , TEM and EDX are used for the morphological identification of ZnO- NPs [ 30 ]. Among the listed techniques, SEM and TEM are the techniques commonly used by researchers.…”

Section: Methodsmentioning

confidence: 99%

Utilizing bio-synthesis of nanomaterials as biological agents for controlling soil-borne diseases in pepper plants: root-knot nematodes and root rot fungus

Y. Ghareeb,

Belal,

El-Khateeb

et al. 2024

BMC Plant Biol

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The utilization of Trichoderma longibrachiatum filtrate as a safe biocontrol method for producing zinc nanoparticles is a promising approach for managing pests and diseases in agricultural crops. The identification of Trichoderma sp. was achieved through PCR amplification and sequencing of 18s as ON203115, while the synthesis of ZnO-NPs was accomplished by employing Trichoderma filtration. The presence of ZnO-NPs was confirmed by observing a color change to dark green, along with the use of visible and UV spectrophotometers, and the formation and chemical structure of ZnO-NPs were examined. Direct exposure to ZnO-NPs exhibited a significant inhibitory effect on the growth of Fusarium oxysporum at 80.73% compared with control. Also, the percent mortality of Meloidogyne incognita second juveniles stage (J2s) results showed 11.82%, 37.63%, 40.86%, and 89.65% after 6, 12, 24, and 72 h, respectively in vitro. Disease resistance was assessed in the greenhouse against M. incognita and F. oxysporum using the drench application of ZnO-NPs. The application of ZnO-NPs significantly reduced the disease severity of F. oxysporum and improved the quality and quantity of sweet pepper yield. In addition, the application of ZnO-NPs to M. incognita resulted in a significant reduction in the number of nematode galls, egg masses per root, eggs/egg mass, and females by 98%, 99%, 99.9%, and 95.5% respectively.Furthermore, it was observed that the application of ZnO-NPs to pepper plants not only inhibited the growth of F. oxysporum and M. incognita, but also promoted the recovery of pepper plants as indicated by improvements in stem length by 106%, root length 102%, fresh weight 112%, root fresh weight 107%, and leaf area 118% compared to healthy control plants. Additionally, real-time PCR application and DD-PCR technique revealed that the application of ZnO-NPs stimulated the secretion of certain enzymes. These findings suggest that the biosynthesized ZnO-NPs possess anti-nematode and antifungal properties, making them effective for protecting plants against M. incognita and F. oxysporum invasion in soil. This study significantly contributes to our understanding of the nematicidal and fungicidal activities of ZnO-NPs in suppressing soil-borne diseases.

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Section: Methodsmentioning

confidence: 99%

Utilizing bio-synthesis of nanomaterials as biological agents for controlling soil-borne diseases in pepper plants: root-knot nematodes and root rot fungus

Y. Ghareeb,

Belal,

El-Khateeb

et al. 2024

BMC Plant Biol

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“…Biological characterization involves assessing genotoxicity, anti-microbial activity, and antibiofilm activity. On the other hand, physicochemical methods encompass a range of techniques such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-Ray Diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), and Ultravioletvisible Spectrophotometry Figure 5 [62].…”

Section: Zinc Oxide Nanoparticles Characterizationmentioning

confidence: 99%

A Review on the Green Synthesis of ZnO Nanoparticles Using the Aqueous Extract of Origanum Majorana for Antimicrobial Applications

Aldokari,

Al-Gabr,

Salam

2023

TU. J. Nat. Appl. Sci.

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Zinc oxide nanoparticles (ZnO-NPs) have been extensively researched for their potential applications in various fields such as pharmaceuticals, cosmetics, biotechnology, sensing, photocatalysis, and photovoltaics due to their unique nanoscale properties. However, the conventional methods for producing ZnO NPs require the use of hazardous chemicals and high energy consumption, which imposes certain limitations. In contrast, the green synthesis of ZnO-NPs using plant extracts, especially Origanum majorana, has gained much attention as a promising alternative approach. Plant extracts contain phytochemicals that are biologically safe and non-toxic, making them a preferred choice. In addition, the ZnO-NPs synthesized with O. majorana extracts exhibit higher stability and can be customized in terms of shape and size, unlike the ZnO-NPs obtained by bacterial or fungal methods. The aqueous leaf extract of O. majorana contains flavonoids, tannins, and phenolic derivatives, which serve as reducing and capping agents for the biosynthesis of ZnO-NPs. These extracts also contain functional groups such as -OH and -C=O, which further enhance the physicochemical properties of the resulting ZnO-NPs and influence their ability to target specific molecules. The plant-mediated synthesis of ZnO-NPs using O. majorana leaf extract is not only fast and straightforward but also offers a wide range of functionalized nanoparticles with specific morphologies and sizes. These ZnO-NPs prepared with O. majorana have been shown to have potential applications in various fields, including antimicrobial, antioxidant, and anticancer activities. This review focuses specifically on the antimicrobial applications of ZnO-NPs synthesized using O. majorana leaf extract.

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“…Research on the larvicidal effect has been carried out on several plants for example Acalypha indica Linn. [3], [4], Solanum xanthocarpum, Euphorbia tirucalli, Momordica charantia, Eucalyptus globules, Citrullus colocynthis, A. indica, Annona squamosa, and Solanum nigrum [5].…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticle of Acalypha indica Linn. Leaf As Bio-larvicide against Anopheles sp. Larvae

Banne

Sahelangi

Soenjono³

et al. 2021

Open Access Maced J Med Sci

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BACKGROUND: Acalypha indica Linn. has been used as traditional medicine, it contains flavonoids, alkaloids, tannins, saponins, steroids, triterpenoids, and essential oils. AIM: This study aimed to determine the bio-larvicide effects of A. indica Linn. leaf stew and the silver nanoparticles against Anopheles sp. larvae. METHODS: The fresh leaves of A. indica Linn. extracted using distilled water at 100°C for 30 min. The silver nanoparticles were made by mixing a solution of silver nitrate with the stew, which acts as a reducing agent. The resulting silver nanoparticles were characterized by particle size analyzer and UV-vis spectrophotometer. The bio-larvicide effects against Anopheles sp. larvae performed using a completely randomized design. There were eight groups consisted of ten larvae and three replications. Treatment groups of stew and silver nanoparticle for concentrations 0.05%, 0.5%, and 5%, respectively. The negative control group was distilled water and the positive control group was the 0.01% abate solution. Assessment of larvicide activity was carried out every hour for 6 h and continued if there were larvae that live up to 24 h. The LC50 value was calculated based on Probit analysis. RESULTS: The results showed that the A. indica Linn. leaf stew can be made into silver nanoparticles preparations, optimal results were obtained from a mixture of 1% stew and 3 mM AgNO3. The result of bio-larvicides effect test against Anopheles sp. larvae showed that the LC50 value of the A. indica Linn. leaf stew was 727,3 ppm and the LC50 value of silver nanoparticles was 3.366 ppm. CONCLUSION: It can be concluded that A. indica Linn. is a promising larvicidal plant and can be made into silver nanoparticle preparations.

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Larvicidal, super hydrophobic and antibacterial properties of herbal nanoparticles from Acalypha indica for biomedical applications

Abstract: Herbal nanoparticles usingAcalypha indicaleaves are investigated and found to possess superior larvicidal, water repellent and antimicrobial properties for biomedical applications.

Cited by 26 publications

References 39 publications

Utilizing bio-synthesis of nanomaterials as biological agents for controlling soil-borne diseases in pepper plants: root-knot nematodes and root rot fungus

Utilizing bio-synthesis of nanomaterials as biological agents for controlling soil-borne diseases in pepper plants: root-knot nematodes and root rot fungus

A Review on the Green Synthesis of ZnO Nanoparticles Using the Aqueous Extract of Origanum Majorana for Antimicrobial Applications

Silver Nanoparticle of Acalypha indica Linn. Leaf As Bio-larvicide against Anopheles sp. Larvae

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