Volume 142, Issue 14 e56708
RESEARCH ARTICLE

Thermoplastic Polyurethane/Polylactic Acid Blend Foams Loaded With Curcuma longa L. and Hypericum perforatum Extracts Towards Wound Dressing Applications

Aleksandra Bužarovska

Corresponding Author

Aleksandra Bužarovska

Ss Cyril and Methodius University in Skopje, Faculty of Technology and Metallurgy, Skopje, North Macedonia

Correspondence:

Aleksandra Bužarovska ([email protected])

Sorina Dinescu ([email protected])

Contribution: ​Investigation (lead), Methodology (lead), Resources (lead), Writing - original draft (lead)

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Jasmina Petreska Stanoeva

Jasmina Petreska Stanoeva

Ss. Cyril and Methodius University in Skopje, Faculty of Natural Sciences and Mathematics, Institute of Chemistry, Skopje, North Macedonia

Contribution: ​Investigation (equal)

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Predrag Karamanolevski

Predrag Karamanolevski

Kemet Electronics Macedonia, Technological Industrial Development Zone No. Skopje 1/NN Ilinden—Skopje, Skopje, North Macedonia

Contribution: ​Investigation (supporting)

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Andreea Daniela Popa (Lazăr)

Andreea Daniela Popa

Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania

Contribution: ​Investigation (equal), Methodology (equal)

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Sorina Dinescu

Corresponding Author

Sorina Dinescu

Department of Biochemistry and Molecular Biology, University of Bucharest, Bucharest, Romania

The Research Institute of the University of Bucharest (ICUB), Bucharest, Romania

Correspondence:

Aleksandra Bužarovska ([email protected])

Sorina Dinescu ([email protected])

Contribution: ​Investigation (equal), Methodology (equal), Writing - original draft (equal), Writing - review & editing (equal)

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Luc Avérous

Luc Avérous

BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, Strasbourg Cedex, France

Contribution: Writing - review & editing (equal)

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First published: 06 January 2025
Citations: 1

ABSTRACT

This study aimed to fabricate and evaluate TPU/polylactic acid foams loaded with natural extracts of Curcuma longa L. (C) and Hypericum perforatum (H) for WD application. In the frame of the structure/properties relationships study, different and complementary analyzes for WD materials, such as water contact angles measurements, water vapor transmission rate, water absorption, and extracts release studies were performed, in connection with the structural and thermal characterizations performed using scanning electron microscopy, differential scanning calorimetry and Fourier transform spectroscopy. The water absorption capacity of the blank blend foam and foams loaded with extracts (C and H) was found to be in the range of 8.31% ± 0.27, 90.7% ± 4.1 and 164% ± 4.0%, respectively. The loaded foams presented cumulative extracts release of 45.5% ± 2% (C) and 100% ± 1.1% (H) within 96 h and acceptable water vapor transmission rate in the range of 2088 ± 66 and 3520 ± 991 g·m−2·24 h−1, respectively. Summary, the investigated foams, enriched with both extracts, showed excellent performances in agreement with WD materials requirements, higher cell viability and proliferation compared to the reference foams, as well as non-cytotoxic effects on human fibroblasts in experimental conditions.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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