Freitas, Filomena

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  • Freitas, Filomena (2)

Author's Bibliography

Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin

Ponjavić, Marijana; Malagurski, Ivana; Lazić, Jelena; Jeremić, Sanja; Pavlović, Vladimir; Prlainović, Nevena; Maksimović, Vesna; Cosović, Vladan; Atanase, Leonard Ionut; Freitas, Filomena; Matos, Mariana; Nikodinović-Runić, Jasmina

(2023)

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Malagurski, Ivana
AU  - Lazić, Jelena
AU  - Jeremić, Sanja
AU  - Pavlović, Vladimir
AU  - Prlainović, Nevena
AU  - Maksimović, Vesna
AU  - Cosović, Vladan
AU  - Atanase, Leonard Ionut
AU  - Freitas, Filomena
AU  - Matos, Mariana
AU  - Nikodinović-Runić, Jasmina
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1714
AB  - The quest for sustainable biomaterials with excellent biocompatibility and tailorable properties has put polyhydroxyalkanoates (PHAs) into the research spotlight. However, high production costs and the lack of bioactivity limit their market penetration. To address this, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was combined with a bacterial pigment with strong anticancer activity, prodigiosin (PG), to obtain functionally enhanced PHBV-based biomaterials. The samples were produced in the form of films 115.6–118.8 µm in thickness using the solvent casting method. The effects of PG incorporation on the physical properties (morphology, biopolymer crystallinity and thermal stability) and functionality of the obtained biomaterials were investigated. PG has acted as a nucleating agent, in turn affecting the degree of crystallinity, thermal stability and morphology of the films. All samples with PG had a more organized internal structure and higher melting and degradation temperatures. The calculated degree of crystallinity of the PHBV copolymer was 53%, while the PG1, PG3 and PG3 films had values of 64.0%, 63.9% and 69.2%, respectively. Cytotoxicity studies have shown the excellent anticancer activity of films against HCT116 (colon cancer) cells, thus advancing PHBV biomedical application potential.
T2  - International Journal of Molecular Sciences
T2  - International Journal of Molecular Sciences
T1  - Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin
IS  - 3
SP  - 1906
VL  - 24
DO  - 10.3390/ijms24031906
ER  - 
@article{
author = "Ponjavić, Marijana and Malagurski, Ivana and Lazić, Jelena and Jeremić, Sanja and Pavlović, Vladimir and Prlainović, Nevena and Maksimović, Vesna and Cosović, Vladan and Atanase, Leonard Ionut and Freitas, Filomena and Matos, Mariana and Nikodinović-Runić, Jasmina",
year = "2023",
abstract = "The quest for sustainable biomaterials with excellent biocompatibility and tailorable properties has put polyhydroxyalkanoates (PHAs) into the research spotlight. However, high production costs and the lack of bioactivity limit their market penetration. To address this, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was combined with a bacterial pigment with strong anticancer activity, prodigiosin (PG), to obtain functionally enhanced PHBV-based biomaterials. The samples were produced in the form of films 115.6–118.8 µm in thickness using the solvent casting method. The effects of PG incorporation on the physical properties (morphology, biopolymer crystallinity and thermal stability) and functionality of the obtained biomaterials were investigated. PG has acted as a nucleating agent, in turn affecting the degree of crystallinity, thermal stability and morphology of the films. All samples with PG had a more organized internal structure and higher melting and degradation temperatures. The calculated degree of crystallinity of the PHBV copolymer was 53%, while the PG1, PG3 and PG3 films had values of 64.0%, 63.9% and 69.2%, respectively. Cytotoxicity studies have shown the excellent anticancer activity of films against HCT116 (colon cancer) cells, thus advancing PHBV biomedical application potential.",
journal = "International Journal of Molecular Sciences, International Journal of Molecular Sciences",
title = "Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin",
number = "3",
pages = "1906",
volume = "24",
doi = "10.3390/ijms24031906"
}
Ponjavić, M., Malagurski, I., Lazić, J., Jeremić, S., Pavlović, V., Prlainović, N., Maksimović, V., Cosović, V., Atanase, L. I., Freitas, F., Matos, M.,& Nikodinović-Runić, J.. (2023). Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin. in International Journal of Molecular Sciences, 24(3), 1906.
https://doi.org/10.3390/ijms24031906
Ponjavić M, Malagurski I, Lazić J, Jeremić S, Pavlović V, Prlainović N, Maksimović V, Cosović V, Atanase LI, Freitas F, Matos M, Nikodinović-Runić J. Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin. in International Journal of Molecular Sciences. 2023;24(3):1906.
doi:10.3390/ijms24031906 .
Ponjavić, Marijana, Malagurski, Ivana, Lazić, Jelena, Jeremić, Sanja, Pavlović, Vladimir, Prlainović, Nevena, Maksimović, Vesna, Cosović, Vladan, Atanase, Leonard Ionut, Freitas, Filomena, Matos, Mariana, Nikodinović-Runić, Jasmina, "Advancing PHBV Biomedical Potential with the Incorporation of Bacterial Biopigment Prodigiosin" in International Journal of Molecular Sciences, 24, no. 3 (2023):1906,
https://doi.org/10.3390/ijms24031906 . .
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Exploring Microorganisms from Plastic-Polluted Sites: Unveiling Plastic Degradation and PHA Production Potential

Herrera, Diana A. Garza; Mojićević, Marija; Pantelić, Brana; Joshi, Akanksha; Collins, Catherine; Batista, Maria; Torres, Cristiana; Freitas, Filomena; Murray, Patrick; Nikodinović-Runić, Jasmina; Brennan Fournet, Margaret

(2023)

TY  - JOUR
AU  - Herrera, Diana A. Garza
AU  - Mojićević, Marija
AU  - Pantelić, Brana
AU  - Joshi, Akanksha
AU  - Collins, Catherine
AU  - Batista, Maria
AU  - Torres, Cristiana
AU  - Freitas, Filomena
AU  - Murray, Patrick
AU  - Nikodinović-Runić, Jasmina
AU  - Brennan Fournet, Margaret
PY  - 2023
UR  - https://www.mdpi.com/2076-2607/11/12/2914
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2225
AB  - The exposure of microorganisms to conventional plastics is a relatively recent occurrence, affording limited time for evolutionary adaptation. As part of the EU-funded project BioICEP, this study delves into the plastic degradation potential of microorganisms isolated from sites with prolonged plastic pollution, such as plastic-polluted forests, biopolymer-contaminated soil, oil-contaminated soil, municipal landfill, but also a distinctive soil sample with plastic pieces buried three decades ago. Additionally, samples from Arthropoda species were investigated. In total, 150 strains were isolated and screened for the ability to use plastic-related substrates (Impranil dispersions, polyethylene terephthalate, terephthalic acid, and bis(2-hydroxyethyl) terephthalate). Twenty isolates selected based on their ability to grow on various substrates were identified as Streptomyces, Bacillus, Enterococcus, and Pseudomonas spp. Morphological features were recorded, and the 16S rRNA sequence was employed to construct a phylogenetic tree. Subsequent assessments unveiled that 5 out of the 20 strains displayed the capability to produce polyhydroxyalkanoates, utilizing pre-treated post-consumer PET samples. With Priestia sp. DG69 and Neobacillus sp. DG40 emerging as the most successful producers (4.14% and 3.34% of PHA, respectively), these strains are poised for further utilization in upcycling purposes, laying the foundation for the development of sustainable strategies for plastic waste management.
T2  - Microorganisms
T2  - Microorganisms
T1  - Exploring Microorganisms from Plastic-Polluted Sites: Unveiling Plastic Degradation and PHA Production Potential
IS  - 12
SP  - 2914
VL  - 11
DO  - 10.3390/microorganisms11122914
ER  - 
@article{
author = "Herrera, Diana A. Garza and Mojićević, Marija and Pantelić, Brana and Joshi, Akanksha and Collins, Catherine and Batista, Maria and Torres, Cristiana and Freitas, Filomena and Murray, Patrick and Nikodinović-Runić, Jasmina and Brennan Fournet, Margaret",
year = "2023",
abstract = "The exposure of microorganisms to conventional plastics is a relatively recent occurrence, affording limited time for evolutionary adaptation. As part of the EU-funded project BioICEP, this study delves into the plastic degradation potential of microorganisms isolated from sites with prolonged plastic pollution, such as plastic-polluted forests, biopolymer-contaminated soil, oil-contaminated soil, municipal landfill, but also a distinctive soil sample with plastic pieces buried three decades ago. Additionally, samples from Arthropoda species were investigated. In total, 150 strains were isolated and screened for the ability to use plastic-related substrates (Impranil dispersions, polyethylene terephthalate, terephthalic acid, and bis(2-hydroxyethyl) terephthalate). Twenty isolates selected based on their ability to grow on various substrates were identified as Streptomyces, Bacillus, Enterococcus, and Pseudomonas spp. Morphological features were recorded, and the 16S rRNA sequence was employed to construct a phylogenetic tree. Subsequent assessments unveiled that 5 out of the 20 strains displayed the capability to produce polyhydroxyalkanoates, utilizing pre-treated post-consumer PET samples. With Priestia sp. DG69 and Neobacillus sp. DG40 emerging as the most successful producers (4.14% and 3.34% of PHA, respectively), these strains are poised for further utilization in upcycling purposes, laying the foundation for the development of sustainable strategies for plastic waste management.",
journal = "Microorganisms, Microorganisms",
title = "Exploring Microorganisms from Plastic-Polluted Sites: Unveiling Plastic Degradation and PHA Production Potential",
number = "12",
pages = "2914",
volume = "11",
doi = "10.3390/microorganisms11122914"
}
Herrera, D. A. G., Mojićević, M., Pantelić, B., Joshi, A., Collins, C., Batista, M., Torres, C., Freitas, F., Murray, P., Nikodinović-Runić, J.,& Brennan Fournet, M.. (2023). Exploring Microorganisms from Plastic-Polluted Sites: Unveiling Plastic Degradation and PHA Production Potential. in Microorganisms, 11(12), 2914.
https://doi.org/10.3390/microorganisms11122914
Herrera DAG, Mojićević M, Pantelić B, Joshi A, Collins C, Batista M, Torres C, Freitas F, Murray P, Nikodinović-Runić J, Brennan Fournet M. Exploring Microorganisms from Plastic-Polluted Sites: Unveiling Plastic Degradation and PHA Production Potential. in Microorganisms. 2023;11(12):2914.
doi:10.3390/microorganisms11122914 .
Herrera, Diana A. Garza, Mojićević, Marija, Pantelić, Brana, Joshi, Akanksha, Collins, Catherine, Batista, Maria, Torres, Cristiana, Freitas, Filomena, Murray, Patrick, Nikodinović-Runić, Jasmina, Brennan Fournet, Margaret, "Exploring Microorganisms from Plastic-Polluted Sites: Unveiling Plastic Degradation and PHA Production Potential" in Microorganisms, 11, no. 12 (2023):2914,
https://doi.org/10.3390/microorganisms11122914 . .
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