Ribeiro, Ana Isabel

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Authority KeyName Variants
ab5e0584-c747-477b-b4db-91ff5edd8a90
  • Ribeiro, Ana Isabel (2)
Projects

Author's Bibliography

Plant-Assisted Synthesis of Ag-Based Nanoparticles on Cotton: Antimicrobial and Cytotoxicity Studies

Krkobabić, Ana; Radetić, Maja; Zille, Andrea; Ribeiro, Ana Isabel; Tadić, Vanja; Ilić-Tomić, Tatjana; Marković, Darka

(MDPI, 2024)

TY  - JOUR
AU  - Krkobabić, Ana
AU  - Radetić, Maja
AU  - Zille, Andrea
AU  - Ribeiro, Ana Isabel
AU  - Tadić, Vanja
AU  - Ilić-Tomić, Tatjana
AU  - Marković, Darka
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7460
AB  - The syntheses of Ag-based nanoparticles (NPs) with the assistance of plant extracts have been shown to be environmentally benign and cost-effective alternatives to conventional chemical syntheses. This study discusses the application of Paliurus spina-christi, Juglans regia, Humulus lupulus, and Sambucus nigra leaf extracts for in situ synthesis of Ag-based NPs on cotton fabric modified with citric acid. The presence of NPs with an average size ranging from 57 to 99 nm on the fiber surface was confirmed by FESEM. XPS analysis indicated that metallic (Ag0) and/or ionic silver (Ag2O and AgO) appeared on the surface of the modified cotton. The chemical composition, size, shape, and amounts of synthesized NPs were strongly dependent on the applied plant extract. All fabricated nanocomposites exhibited excellent antifungal activity against yeast Candida albicans. Antibacterial activity was significantly stronger against Gram-positive bacteria Staphylococcus aureus than Gram-negative bacteria Escherichia coli. In addition, 99% of silver was retained on the samples after 24 h of contact with physiological saline solution, implying a high stability of nanoparticles. Cytotoxic activity towards HaCaT and MRC5 cells was only observed for the sample synthetized in the presence of H. lupulus extract. Excellent antimicrobial activity and non-cytotoxicity make the developed composites efficient candidates for medicinal applications.
PB  - MDPI
T2  - Molecules
T1  - Plant-Assisted Synthesis of Ag-Based Nanoparticles on Cotton: Antimicrobial and Cytotoxicity Studies
IS  - 7
SP  - 1447
VL  - 29
DO  - 10.3390/molecules29071447
ER  - 
@article{
author = "Krkobabić, Ana and Radetić, Maja and Zille, Andrea and Ribeiro, Ana Isabel and Tadić, Vanja and Ilić-Tomić, Tatjana and Marković, Darka",
year = "2024",
abstract = "The syntheses of Ag-based nanoparticles (NPs) with the assistance of plant extracts have been shown to be environmentally benign and cost-effective alternatives to conventional chemical syntheses. This study discusses the application of Paliurus spina-christi, Juglans regia, Humulus lupulus, and Sambucus nigra leaf extracts for in situ synthesis of Ag-based NPs on cotton fabric modified with citric acid. The presence of NPs with an average size ranging from 57 to 99 nm on the fiber surface was confirmed by FESEM. XPS analysis indicated that metallic (Ag0) and/or ionic silver (Ag2O and AgO) appeared on the surface of the modified cotton. The chemical composition, size, shape, and amounts of synthesized NPs were strongly dependent on the applied plant extract. All fabricated nanocomposites exhibited excellent antifungal activity against yeast Candida albicans. Antibacterial activity was significantly stronger against Gram-positive bacteria Staphylococcus aureus than Gram-negative bacteria Escherichia coli. In addition, 99% of silver was retained on the samples after 24 h of contact with physiological saline solution, implying a high stability of nanoparticles. Cytotoxic activity towards HaCaT and MRC5 cells was only observed for the sample synthetized in the presence of H. lupulus extract. Excellent antimicrobial activity and non-cytotoxicity make the developed composites efficient candidates for medicinal applications.",
publisher = "MDPI",
journal = "Molecules",
title = "Plant-Assisted Synthesis of Ag-Based Nanoparticles on Cotton: Antimicrobial and Cytotoxicity Studies",
number = "7",
pages = "1447",
volume = "29",
doi = "10.3390/molecules29071447"
}
Krkobabić, A., Radetić, M., Zille, A., Ribeiro, A. I., Tadić, V., Ilić-Tomić, T.,& Marković, D.. (2024). Plant-Assisted Synthesis of Ag-Based Nanoparticles on Cotton: Antimicrobial and Cytotoxicity Studies. in Molecules
MDPI., 29(7), 1447.
https://doi.org/10.3390/molecules29071447
Krkobabić A, Radetić M, Zille A, Ribeiro AI, Tadić V, Ilić-Tomić T, Marković D. Plant-Assisted Synthesis of Ag-Based Nanoparticles on Cotton: Antimicrobial and Cytotoxicity Studies. in Molecules. 2024;29(7):1447.
doi:10.3390/molecules29071447 .
Krkobabić, Ana, Radetić, Maja, Zille, Andrea, Ribeiro, Ana Isabel, Tadić, Vanja, Ilić-Tomić, Tatjana, Marković, Darka, "Plant-Assisted Synthesis of Ag-Based Nanoparticles on Cotton: Antimicrobial and Cytotoxicity Studies" in Molecules, 29, no. 7 (2024):1447,
https://doi.org/10.3390/molecules29071447 . .

Antibacterial Bio-Nanocomposite Textile Material Produced from Natural Resources

Marković, Darka; Zille, Andrea; Ribeiro, Ana Isabel; Mikučioniene, Daiva; Simončič, Barbara; Tomšič, Brigita; Radetić, Maja

(MDPI, 2022)

TY  - JOUR
AU  - Marković, Darka
AU  - Zille, Andrea
AU  - Ribeiro, Ana Isabel
AU  - Mikučioniene, Daiva
AU  - Simončič, Barbara
AU  - Tomšič, Brigita
AU  - Radetić, Maja
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5305
AB  - Growing demand for sustainable and green technologies has turned industries and research toward the more efficient utilization of natural and renewable resources. In an effort to tackle this issue, we developed an antibacterial textile nanocomposite material based on cotton and peat fibers with immobilized Cu-based nanostructures. In order to overcome poor wettability and affinity for Cu2+-ions, the substrate was activated by corona discharge and coated with the biopolymer chitosan before the in situ synthesis of nanostructures. Field emission scanning electron microscopy (FESEM) images show that the application of gallic or ascorbic acid as green reducing agents resulted in the formation of Cu-based nanosheets and mostly spherical nanoparticles, respectively. X-ray photoelectron spectroscopy (XPS) analysis revealed that the formed nanostructures consisted of Cu2O and CuO. A higher-concentration precursor solution led to higher copper content in the nanocomposites, independent of the reducing agent and chitosan deacetylation degree. Most of the synthesized nanocomposites provided maximum reduction of the bacteria Escherichia coli and Staphylococcus aureus. A combined modification using chitosan with a higher deacetylation degree, a 1 mM solution of CuSO4 solution, and gallic acid resulted in an optimal textile nanocomposite with strong antibacterial activity and moderate Cu2+-ion release in physiological solutions. Finally, the Cu-based nanostructures partially suppressed the biodegradation of the textile nanocomposite in soil.
PB  - MDPI
T2  - Nanomaterials
T1  - Antibacterial Bio-Nanocomposite Textile Material Produced from Natural Resources
IS  - 15
SP  - 2539
VL  - 12
DO  - 10.3390/nano12152539
ER  - 
@article{
author = "Marković, Darka and Zille, Andrea and Ribeiro, Ana Isabel and Mikučioniene, Daiva and Simončič, Barbara and Tomšič, Brigita and Radetić, Maja",
year = "2022",
abstract = "Growing demand for sustainable and green technologies has turned industries and research toward the more efficient utilization of natural and renewable resources. In an effort to tackle this issue, we developed an antibacterial textile nanocomposite material based on cotton and peat fibers with immobilized Cu-based nanostructures. In order to overcome poor wettability and affinity for Cu2+-ions, the substrate was activated by corona discharge and coated with the biopolymer chitosan before the in situ synthesis of nanostructures. Field emission scanning electron microscopy (FESEM) images show that the application of gallic or ascorbic acid as green reducing agents resulted in the formation of Cu-based nanosheets and mostly spherical nanoparticles, respectively. X-ray photoelectron spectroscopy (XPS) analysis revealed that the formed nanostructures consisted of Cu2O and CuO. A higher-concentration precursor solution led to higher copper content in the nanocomposites, independent of the reducing agent and chitosan deacetylation degree. Most of the synthesized nanocomposites provided maximum reduction of the bacteria Escherichia coli and Staphylococcus aureus. A combined modification using chitosan with a higher deacetylation degree, a 1 mM solution of CuSO4 solution, and gallic acid resulted in an optimal textile nanocomposite with strong antibacterial activity and moderate Cu2+-ion release in physiological solutions. Finally, the Cu-based nanostructures partially suppressed the biodegradation of the textile nanocomposite in soil.",
publisher = "MDPI",
journal = "Nanomaterials",
title = "Antibacterial Bio-Nanocomposite Textile Material Produced from Natural Resources",
number = "15",
pages = "2539",
volume = "12",
doi = "10.3390/nano12152539"
}
Marković, D., Zille, A., Ribeiro, A. I., Mikučioniene, D., Simončič, B., Tomšič, B.,& Radetić, M.. (2022). Antibacterial Bio-Nanocomposite Textile Material Produced from Natural Resources. in Nanomaterials
MDPI., 12(15), 2539.
https://doi.org/10.3390/nano12152539
Marković D, Zille A, Ribeiro AI, Mikučioniene D, Simončič B, Tomšič B, Radetić M. Antibacterial Bio-Nanocomposite Textile Material Produced from Natural Resources. in Nanomaterials. 2022;12(15):2539.
doi:10.3390/nano12152539 .
Marković, Darka, Zille, Andrea, Ribeiro, Ana Isabel, Mikučioniene, Daiva, Simončič, Barbara, Tomšič, Brigita, Radetić, Maja, "Antibacterial Bio-Nanocomposite Textile Material Produced from Natural Resources" in Nanomaterials, 12, no. 15 (2022):2539,
https://doi.org/10.3390/nano12152539 . .