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Green synthesis of zinc oxide (ZnO) nanoparticles using aqueous leaves extracts of Artemisia annua: Their characterizations and anti-parasitic activity Cover

Green synthesis of zinc oxide (ZnO) nanoparticles using aqueous leaves extracts of Artemisia annua: Their characterizations and anti-parasitic activity

Open Access
|Dec 2025

Figures & Tables

Fig. 1.

FTIR spectra of biosynthesis ZnO-NPs by Artemisia annua.
FTIR spectra of biosynthesis ZnO-NPs by Artemisia annua.

Fig. 2.

Zeta potential of biosynthesized ZnO-NPs by Artemisia annua.
Zeta potential of biosynthesized ZnO-NPs by Artemisia annua.

Fig. 3.

Dynamic light-scattering (DSL) of biosynthesized ZnO-NPs by Artemisia annua.
Dynamic light-scattering (DSL) of biosynthesized ZnO-NPs by Artemisia annua.

Fig. 4.

Transmission electron microscopy (TEM) of biosynthesized ZnO-NPs by Artemisia annua.
Transmission electron microscopy (TEM) of biosynthesized ZnO-NPs by Artemisia annua.

Fig. 5.

X-ray diffraction of biosynthesized ZnO-NPs by Artemisia annua.
X-ray diffraction of biosynthesized ZnO-NPs by Artemisia annua.

Fig. 6.

Statistical analysis of the effectiveness of ZnO NPs synthesized by Artemisia annua and ZnO NPs plus PZQ with different concentrations and duration times on S. mansoni (adult worms) (A) Male and (B) Female.
Statistical analysis of the effectiveness of ZnO NPs synthesized by Artemisia annua and ZnO NPs plus PZQ with different concentrations and duration times on S. mansoni (adult worms) (A) Male and (B) Female.

Fig. 7.

Light microscopy of liver sections from golden hamsters. (A, B) Show a normal (uninfected) liver section. (C, D) Depict a liver section infected with S. mansoni (untreated), characterized by numerous fibrocellular granulomas. (E-H) Illustrate an infected liver section treated with green ZnONPs, revealing fibrocellular granulomas with miracidia inside the eggs scattered throughout the hepatic parenchyma. There is a marked reduction in both the number and size of granulomas, improved liver structure, egg destruction, and the presence of empty granulomas. The granulomas are irregularly shaped and contain less fibrous material. (I-L) Present an infected liver section treated with green ZnONPs combined with PZQ, showing a significant decrease in granuloma number and size, enhanced liver architecture, egg destruction, and empty granulomas. The granulomas maintain an irregular shape with diminished fibrous content.
Light microscopy of liver sections from golden hamsters. (A, B) Show a normal (uninfected) liver section. (C, D) Depict a liver section infected with S. mansoni (untreated), characterized by numerous fibrocellular granulomas. (E-H) Illustrate an infected liver section treated with green ZnONPs, revealing fibrocellular granulomas with miracidia inside the eggs scattered throughout the hepatic parenchyma. There is a marked reduction in both the number and size of granulomas, improved liver structure, egg destruction, and the presence of empty granulomas. The granulomas are irregularly shaped and contain less fibrous material. (I-L) Present an infected liver section treated with green ZnONPs combined with PZQ, showing a significant decrease in granuloma number and size, enhanced liver architecture, egg destruction, and empty granulomas. The granulomas maintain an irregular shape with diminished fibrous content.

Fig. 8.

SEM photomicrograph of S. mansoni: (A and B) untreated worms (A) normal body architecture with numerous tubercles supported with an acute spine, (B) normal oral sucker (oval) and rounded ventral sucker. (C and D) treated group with PZQ (C) severe damage of body, (D) tubercles deformation and spine decay (E, F, G, H) treated group with biosynthesized ZnO nanoparticles (E) complete destruction of gynaecophoric channel, (F) peeling and destruction of the tegument (G, H) abnormalities appeared in the tubercles and destruction of the spines, (I, J, K, L) treated group with ZnONPs plus PZQ (I) Complete destruction and contracile of the worm's body (J, K) completely destroyed of tegument (peeling of tubercles, tegument sloughing, devastation spines) (L) wrinkles and bubbles appeared on damage tegument.
SEM photomicrograph of S. mansoni: (A and B) untreated worms (A) normal body architecture with numerous tubercles supported with an acute spine, (B) normal oral sucker (oval) and rounded ventral sucker. (C and D) treated group with PZQ (C) severe damage of body, (D) tubercles deformation and spine decay (E, F, G, H) treated group with biosynthesized ZnO nanoparticles (E) complete destruction of gynaecophoric channel, (F) peeling and destruction of the tegument (G, H) abnormalities appeared in the tubercles and destruction of the spines, (I, J, K, L) treated group with ZnONPs plus PZQ (I) Complete destruction and contracile of the worm's body (J, K) completely destroyed of tegument (peeling of tubercles, tegument sloughing, devastation spines) (L) wrinkles and bubbles appeared on damage tegument.

The mean count and size of granuloma of animal liver in untreated control group comparison to treated group_

Groups of animalDiameter of granuloma (mean±SE)Reduction of granuloma size %Granuloma Count (mean±SE)Reduction of count %
infected control345.30±21.18-------17.5±4.23-------
Positive control171.45±35.2150.36.99±4.8960.1
ZnO NPs191.43±23.4544.68.65±3.4650.6
ZnO NPs + PZQ117.19±24.1866.14.34±4.3375.2

Statistical analysis of the effectiveness of ZnO NPs synthesized by Artemisia annua and ZnO NPs plus PZQ with different concentration and incubation times on S_ mansoni (male adult worms)_

Tested materialsConc. (μg/ml)Number of dead adult worms of S. mansoni male after incubation for 48 h
2 h4 h6 h12 h24 h48 h
Green zinc oxide NPs3.12500.33 ± 0.470.66 ± 0.470.66 ± 0.472.66 ± 0.474.0 ± 0.81
6.2500.33 ± 0.470.66 ± 0.471.66 ± 0.473.66 ± 0.475.0 ± 0.0
12.50.66 ± 0.471.66 ± 0.473.0 ± 0.814.66 ± 0.477.0 ± 0.07.0 ± 0.0
250.66 ± 0.473.33 ± 0.475.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.0
501.33 ± 0.473.66 ± 0.476.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.0
1001.33 ± 0.473.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0

Green zinc oxide NPs + PZQ12.5+0.42 ± 0.813.66 ± 0.475.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.0
25+0.33.0 ± 0.816.33 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0
50+0.23.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0
75+0.13.33 ± 0.476.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0

PZQ0.5 μg/ml6.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0

Statistical analysis of the effectiveness of ZnO NPs synthesized by Artemisia annua and ZnO NPs plus PZQ with different concentration and incubation times on S_ mansoni (female adult worms)_

Tested materialsConc. (μg/ml)Number of dead adult worms of S. mansoni female after incubation for 48 h
2 h4 h6 h12 h24 h48 h
Green ZnONPs3.12500.33 ± 0.470.66 ± 0.471.0 ± 0.812.33 ± 0.943.33 ± 0.94
6.2500.33 ± 0.470.66 ± 0.471.33 ± 0.473.66 ± 0.475.33 ± 0.47
12.50.33 ± 0.472.0 ± 0.814.0 ± 0.814.33 ± 0.477.0 ± 0.07.0 ± 0.0
251.0 ± 0.473.33 ± 0.475.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.0
501.0 ± 0.813.66 ± 0.476.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.0
1001.33 ± 0.473.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0

Green ZnONPs + PZQ12.5+0.42.0 ± 0.813.33 ± 0.475.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.0
25+0.33.33 ± 0.476.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0
50+0.24.0 ± 0.817.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0
75+0.16.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0

PZQ0.5 μg/ml6.66 ± 0.477.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.07.0 ± 0.0
DOI: https://doi.org/10.2478/helm-2025-0036 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 304 - 320
Submitted on: Jul 30, 2025
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Accepted on: Jan 13, 2026
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Published on: Dec 31, 2025
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2025 S. S. Eldera, S. Aldawsari, M. Abou El-Nour, published by Slovak Academy of Sciences, Institute of Parasitology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.