Achieving high antimicrobial activity: Composite alginate hydrogel beads releasing activated charcoal with an immobilized active agent
Authorized Users Only
2018
Authors
Osmokrović, AndreaJančić, Ivan

Vunduk, Jovana
Petrović, Predrag
Milenković, Marina

Obradović, Bojana

Article (Published version)

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New composites based on Ca-alginate hydrogels were produced that release activated charcoal (AC) particles with adsorbed povidone iodine (PVP-I) as a model antimicrobial substance in a physiological-like environment. Composite beads with different alginate (0.5-1.5% w/w) and AC (1-20% w/w) concentrations were analyzed by FE-SEM and characterized regarding textural parameters, swelling, and AC release kinetics. PVP-I was easily adsorbed onto AC particles within the optimized beads (0.5% w/w alginate, 20% w/w AC) as indicated by UV-vis spectroscopy, EDX and FT-IR analyses. The obtained beads have shown strong bactericidal effects against two standard bacterial strains (Staphylococcus aureus and Pseudomonas aeruginosa) and clinical multi-resistant wound isolates (MRSA, Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis and Proteus mirabilis) and, at the same time, exhibited negligible PVP-I desorption in physiological saline solution. Thus, the obtained composites could provi...de utilization of potent antiseptics such as iodine, in wound dressings, without the concern of systemic absorption.
Keywords:
Alginate / Activated charcoal / Povidone iodine / Antibacterial activity / Wound dressingSource:
Carbohydrate Polymers, 2018, 196, 279-288Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
DOI: 10.1016/j.carbpol.2018.05.045
ISSN: 0144-8617
PubMed: 29891298
WoS: 000436571600032
Scopus: 2-s2.0-85047260873
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Institution/Community
PharmacyTY - JOUR AU - Osmokrović, Andrea AU - Jančić, Ivan AU - Vunduk, Jovana AU - Petrović, Predrag AU - Milenković, Marina AU - Obradović, Bojana PY - 2018 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3240 AB - New composites based on Ca-alginate hydrogels were produced that release activated charcoal (AC) particles with adsorbed povidone iodine (PVP-I) as a model antimicrobial substance in a physiological-like environment. Composite beads with different alginate (0.5-1.5% w/w) and AC (1-20% w/w) concentrations were analyzed by FE-SEM and characterized regarding textural parameters, swelling, and AC release kinetics. PVP-I was easily adsorbed onto AC particles within the optimized beads (0.5% w/w alginate, 20% w/w AC) as indicated by UV-vis spectroscopy, EDX and FT-IR analyses. The obtained beads have shown strong bactericidal effects against two standard bacterial strains (Staphylococcus aureus and Pseudomonas aeruginosa) and clinical multi-resistant wound isolates (MRSA, Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis and Proteus mirabilis) and, at the same time, exhibited negligible PVP-I desorption in physiological saline solution. Thus, the obtained composites could provide utilization of potent antiseptics such as iodine, in wound dressings, without the concern of systemic absorption. PB - Elsevier Sci Ltd, Oxford T2 - Carbohydrate Polymers T1 - Achieving high antimicrobial activity: Composite alginate hydrogel beads releasing activated charcoal with an immobilized active agent VL - 196 SP - 279 EP - 288 DO - 10.1016/j.carbpol.2018.05.045 ER -
@article{ author = "Osmokrović, Andrea and Jančić, Ivan and Vunduk, Jovana and Petrović, Predrag and Milenković, Marina and Obradović, Bojana", year = "2018", abstract = "New composites based on Ca-alginate hydrogels were produced that release activated charcoal (AC) particles with adsorbed povidone iodine (PVP-I) as a model antimicrobial substance in a physiological-like environment. Composite beads with different alginate (0.5-1.5% w/w) and AC (1-20% w/w) concentrations were analyzed by FE-SEM and characterized regarding textural parameters, swelling, and AC release kinetics. PVP-I was easily adsorbed onto AC particles within the optimized beads (0.5% w/w alginate, 20% w/w AC) as indicated by UV-vis spectroscopy, EDX and FT-IR analyses. The obtained beads have shown strong bactericidal effects against two standard bacterial strains (Staphylococcus aureus and Pseudomonas aeruginosa) and clinical multi-resistant wound isolates (MRSA, Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis and Proteus mirabilis) and, at the same time, exhibited negligible PVP-I desorption in physiological saline solution. Thus, the obtained composites could provide utilization of potent antiseptics such as iodine, in wound dressings, without the concern of systemic absorption.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Carbohydrate Polymers", title = "Achieving high antimicrobial activity: Composite alginate hydrogel beads releasing activated charcoal with an immobilized active agent", volume = "196", pages = "279-288", doi = "10.1016/j.carbpol.2018.05.045" }
Osmokrović, A., Jančić, I., Vunduk, J., Petrović, P., Milenković, M.,& Obradović, B.. (2018). Achieving high antimicrobial activity: Composite alginate hydrogel beads releasing activated charcoal with an immobilized active agent. in Carbohydrate Polymers Elsevier Sci Ltd, Oxford., 196, 279-288. https://doi.org/10.1016/j.carbpol.2018.05.045
Osmokrović A, Jančić I, Vunduk J, Petrović P, Milenković M, Obradović B. Achieving high antimicrobial activity: Composite alginate hydrogel beads releasing activated charcoal with an immobilized active agent. in Carbohydrate Polymers. 2018;196:279-288. doi:10.1016/j.carbpol.2018.05.045 .
Osmokrović, Andrea, Jančić, Ivan, Vunduk, Jovana, Petrović, Predrag, Milenković, Marina, Obradović, Bojana, "Achieving high antimicrobial activity: Composite alginate hydrogel beads releasing activated charcoal with an immobilized active agent" in Carbohydrate Polymers, 196 (2018):279-288, https://doi.org/10.1016/j.carbpol.2018.05.045 . .
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