Elina Marinho

Dr. Elina Marinho

2C2T – Centro de Ciência e Tecnologia Têxtil, University of Minho, Guimarães, Braga, Portugal
orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 August 2025 in Sustainable Chemistry for the Environment
Verified
Journal Article
Open access
EMElina Marinho
Elina Marinho

18 October 2023 in Journal of Drug Delivery Science and Technology
Verified
Journal Article
Open access
MTMarta Sofia Aguiar Carvalho De Teixeira
Marta Sofia Aguiar Carvalho De Teixeira
EMElina Marinho
Elina Marinho
CSCarla Silva
Carla Silva
Joana AntunesJoana Antunes
Joana Antunes
Helena P. FelgueirasHelena P. Felgueiras
Helena P. Felgueiras


6 August 2024 in International Journal of Biological Macromolecules
Verified
Journal Article
Open access
CMCatarina S. Miranda
Catarina S. Miranda
EMElina Marinho
Elina Marinho
Catarina Leal SeabraCatarina Leal Seabra
Catarina Leal Seabra
CECamille Evenou
Camille Evenou
JLJérôme Lamartine
Jérôme Lamartine
Helena P. FelgueirasHelena P. Felgueiras
Helena P. Felgueiras
Chronic wounds represent a serious worldwide concern, being often associated with bacterial infections. As the prevalence of bacterial infections increase, it is crucial to search for alternatives. Essential oils (EOs) constitute a promising option to antibiotics due to their strong anti-inflammatory, analgesic, antioxidant and antibacterial properties. However, such compounds present high volatility. To address this issue, a drug delivery system composed of coaxial wet-spun fibers was engineered and different EOs, namely clove oil (CO), cinnamon leaf oil (CLO) and tea tree oil (TTO), were loaded. Briefly, a coaxial system composed of two syringe pumps, a coagulation bath of deionized water, a cylindrical-shaped collector and a coaxial spinneret was used. A 10 % w/v polycaprolactone (PCL) solution was combined with the different EOs at 2 × minimum bactericidal concentration (MBC) and loaded to a syringe connected to the inner port, whereas a 10 % w/v cellulose acetate (CA) solution mixed with 10 % w/v polyethylene glycol (PEG) at a ratio of 90:10 % v/v (to increase the fibers' elasticity) was loaded to the syringe connected to the outer port. This layer was used as a barrier to pace the release of the entrapped EO. The CA's inherent porosity in water coagulation baths allowed access to the fiber's core. CA was also mixed with 10 % w/v polyethylene glycol (PEG) at a ratio of 90:10 % v/v (CA:PEG), to increase the fibers' elasticity. Microfibers maintained their structural integrity during 28 days of incubation in physiological-like environments. They also showed high elasticities (maximum elongations at break >300 %) and resistance to rupture in mechanical assessments, reaching mass losses of only ≈ 2.29 % - 57.19 %. The EOs were released from the fibers in a prolonged and sustained fashion, in which ≈ 30 % of EO was released during the 24 h of incubation in physiological-like media, demonstrating great antibacterial effectiveness against Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli and Pseudomonas aeruginosa, the most prevalent bacteria in chronic wounds. Moreover, microfibers showed effective antioxidant effects, presenting up to 59 % of reduction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) activity. Furthermore, the coaxial system was deemed safe for contact with fibroblasts and human keratinocytes, reaching metabolic activities higher than 80 % after 48 h of incubation. Data confirmed the suitability of the engineered system for potential therapeutics of chronic wounds.

7 September 2022 in Polymer Composites
Verified
Journal Article
Closed access
TPTânia Peixoto
Tânia Peixoto
JNJoana Nunes
Joana Nunes
M A LopesM A Lopes
M A Lopes
EMElina Marinho
Elina Marinho
MPM. Fernanda Proença
M. Fernanda Proença
Maria da Conceicao Conceicao PaivaMaria da Conceicao Conceicao Paiva
Maria da Conceicao Conceicao Paiva

29 February 2024 in European Journal of Medicinal Chemistry Reports
Verified
Journal Article
Open access
EMElina Marinho
Elina Marinho