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Cid-Pérez TS, Munguía-Pérez R, Nevárez-Moorillón GV, Ochoa-Velasco CE, Navarro-Cruz AR, Avila-Sosa R. Carvacrol and thymol effect in vapor phase on Escherichia coli and Salmonella serovar Typhimurium growth inoculated in a fresh salad. Heliyon 2024; 10:e29638. [PMID: 38694112 PMCID: PMC11058290 DOI: 10.1016/j.heliyon.2024.e29638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 04/01/2024] [Accepted: 04/11/2024] [Indexed: 05/03/2024] Open
Abstract
This study aimed to evaluate the antimicrobial effect of thymol and carvacrol in inhibiting Escherichia coli and Salmonella serovar Typhimurium inoculated on a fresh green salad through the vapor phase. A film-forming solution was prepared by dissolving starch, sorbitol, and variying concentrations of carvacrol, thymol, and a mixture of both. The film-forming solution containing the respective antimicrobial agent was then added lid, which was sealed rigidly and hermetically to achieve different concentrations (105 mg/L of air of carvacrol, 105 mg/L of air of thymol, and a mixture of 52 mg/L of air of carvacrol and 52 mg/L of air of thymol). Each active package contained fresh green salad inoculated with E. coli or Salmonella serovar Typhimurium. The active packages were then sealed and refrigerated at a temperature of 6 °C for 48 h. Growth/inhibition curves were modelled using the Weibull equation, and consumer acceptance was evaluated. Carvacrol can reduce up to 0.5 log-cycles, while thymol can reach almost 1 log cycle. Blending the components with half the concentration has a synergistic effect, inhibiting up to 2.5 log cycles. Consumer ratings revealed no significant differences between the packages. However, the average score was 5.4 on a 9-point hedonic scale, evaluators' comments did not indicate dislike or a strong taste characteristic of thymol and carvacrol.
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Affiliation(s)
- Teresa Soledad Cid-Pérez
- Departamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Mexico
| | - Ricardo Munguía-Pérez
- Laboratorio de Micología, Centro de Investigaciones en Ciencias Microbiológicas, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Mexico
| | | | - Carlos Enrique Ochoa-Velasco
- Departamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Mexico
| | - Addí Rhode Navarro-Cruz
- Departamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Mexico
| | - Raúl Avila-Sosa
- Departamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Mexico
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2
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Sánchez-Aguinagalde O, Sanchez-Rexach E, Polo Y, Larrañaga A, Lejardi A, Meaurio E, Sarasua JR. Physicochemical Characterization and In Vitro Activity of Poly(ε-Caprolactone)/Mycophenolic Acid Amorphous Solid Dispersions. Polymers (Basel) 2024; 16:1088. [PMID: 38675007 PMCID: PMC11054924 DOI: 10.3390/polym16081088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/27/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
The obtention of amorphous solid dispersions (ASDs) of mycophenolic acid (MPA) in poly(ε-caprolactone) (PCL) is reported in this paper. An improvement in the bioavailability of the drug is possible thanks to the favorable specific interactions occurring in this system. Differential scanning calorimetry (DSC) was used to investigate the miscibility of PCL/MPA blends, measuring glass transition temperature (Tg) and analyzing melting point depression to obtain a negative interaction parameter, which indicates the development of favorable inter-association interactions. Fourier transform infrared spectroscopy (FTIR) was used to analyze the specific interaction occurring in the blends. Drug release measurements showed that at least 70% of the drug was released by the third day in vitro in all compositions. Finally, preliminary in vitro cell culture experiments showed a decreased number of cancerous cells over the scaffolds containing MPA, presumably arising from the anti-cancer activity attributable to MPA.
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Affiliation(s)
- Oroitz Sánchez-Aguinagalde
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Bilbao School of Engineering, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.S.-R.); (A.L.); (E.M.); (J.-R.S.)
| | - Eva Sanchez-Rexach
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Bilbao School of Engineering, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.S.-R.); (A.L.); (E.M.); (J.-R.S.)
| | - Yurena Polo
- Polimerbio SL, Paseo Miramon 170, 20014 Donostia-San Sebastian, Spain;
| | - Aitor Larrañaga
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Bilbao School of Engineering, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.S.-R.); (A.L.); (E.M.); (J.-R.S.)
| | - Ainhoa Lejardi
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Bilbao School of Engineering, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.S.-R.); (A.L.); (E.M.); (J.-R.S.)
| | - Emilio Meaurio
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Bilbao School of Engineering, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.S.-R.); (A.L.); (E.M.); (J.-R.S.)
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Bilbao School of Engineering, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.S.-R.); (A.L.); (E.M.); (J.-R.S.)
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3
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Tran Vo TM, Potiyaraj P, del Val P, Kobayashi T. Ultrasound-Triggered Amoxicillin Release from Chitosan/Ethylene Glycol Diglycidyl Ether/Amoxicillin Hydrogels Having a Covalently Bonded Network. ACS OMEGA 2024; 9:585-597. [PMID: 38222581 PMCID: PMC10785092 DOI: 10.1021/acsomega.3c06213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/17/2023] [Accepted: 11/24/2023] [Indexed: 01/16/2024]
Abstract
An antibiotic release system triggered by ultrasound (US) was investigated using chitosan (CS)/ethylene glycol diglycidyl ether (EGDE) hydrogel carriers with amoxicillin (Amox) drug. Different CS concentrations of 1.5, 2, 2.5, and 3 wt % were gelled with EGDE and Amox was entrapped in the hydrogel carrier; the accelerated release was observed as triggered by 43 kHz US exposure at different US output powers ranging from 0 to 35 W. Among these CS hydrogel systems, the degree of accelerated Amox release depended on the CS concentration for the hydrogelation and the matrix with 2 wt % CS exhibited efficient Amox release at 35 W US power with around 19 μg/mL. The drug released with time was fitted with Higuchi and Korsmeyer-Peppas models, and the enhancement was caused by US aiding drug diffusion within the hydrogel matrix by a non-Fickian diffusion mechanism. The US effect on the viscoelasticity of the hydrogel matrix indicated that the matrix became somewhat softened by the US exposure to the dense hydrogels for 2.5 and 3% CS/EGDE, while the degree of softening was slightly marked in the CS/EGDE hydrogels prepared with 1.5 and 2% CS concentration. Such US softening also aided drug diffusion within the hydrogel matrix, suggesting an enhanced Amox release.
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Affiliation(s)
- Tu Minh Tran Vo
- Department
of Energy and Environmental Science, Nagaoka
University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
- Department
of Materials Science, Chulalongkorn University,
Faculty of Science, Pathum Wan, Bangkok 10330, Thailand
| | - Pranut Potiyaraj
- Department
of Materials Science, Chulalongkorn University,
Faculty of Science, Pathum Wan, Bangkok 10330, Thailand
| | - Patricia del Val
- Department
of Mechanics, Design and Industrial Management, University of Deusto, Unibertsitate Etorb., 24, Bilbo, Bizkaia 48007, Spain
| | - Takaomi Kobayashi
- Department
of Energy and Environmental Science, Nagaoka
University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
- Department
of Science of Technology Innovation, Nagaoka
University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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4
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Lucic Skoric M, Milovanovic S, Zizovic I, Ortega-Toro R, Santagata G, Malinconico M, Kalagasidis Krusic M. Supercritical CO 2 Impregnation of Thymol in Thermoplastic Starch-Based Blends: Chemico-Physical Properties and Release Kinetics. Polymers (Basel) 2022; 14:polym14204360. [PMID: 36297937 PMCID: PMC9606892 DOI: 10.3390/polym14204360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/08/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022] Open
Abstract
The aim of the present study was to investigate starch-based materials, prepared in an environmentally friendly way and from renewable resources, suitable for the development of biodegradable active food packaging. For this purpose, a bioactive compound (thymol) was incorporated into thermoplastic starch (TPS) and a TPS blend with poly (ε-caprolactone) (TPS-PCL) by the supercritical CO2 (scCO2) impregnation process. Impregnation experiments with scCO2 were carried out at a pressure of 30 MPa and temperatures in the range of 40-100 °C during 1 to 20 h. The structural, morphological, and thermal properties of the obtained materials were comprehensively evaluated. Bioactive component release kinetic studies were performed in water at 6 °C and 25 °C. It was shown that the scCO2 impregnation process could be successfully employed for thymol loading into TPS and TPS-PCL. The process was significantly influenced by the operating temperature and time as well as content of PCL. The samples showed a controlled release of thymol within seven days with a higher amount of released thymol from the TPS-PCL blend. The obtained materials are solvent-free and release the bioactive component in a controlled manner.
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Affiliation(s)
- Marija Lucic Skoric
- Innovation Center of the Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Stoja Milovanovic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Irena Zizovic
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Rodrigo Ortega-Toro
- Food Packaging and Shelf Life Research Group (FP&SL), Food Engineering Program, Universidad de Cartagena, Avenida del Consulado Calle 30 No. 48-152, Cartagena de Indias 130015, Colombia
| | - Gabriella Santagata
- CNR, Institute for Polymers, Composites and Biomaterials, Via Campi Flegrei, 34, Pozzuoli, 80078 Napoli, Italy
- Correspondence: (G.S.); (M.K.K.)
| | - Mario Malinconico
- CNR, Institute for Polymers, Composites and Biomaterials, Via Campi Flegrei, 34, Pozzuoli, 80078 Napoli, Italy
| | - Melina Kalagasidis Krusic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
- Correspondence: (G.S.); (M.K.K.)
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5
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Alvarez Echazú MI, Antona ME, Perna O, Olivetti CE, Alvarez GS, Macri EV, Perez CJ, Czerner M, Friedman SM, Desimone MF. Dodecenylsuccinic anhydride modified chitosan hydrogels for the sustained delivery of hydrophobic drugs. The case of thymol buccal delivery. J Appl Polym Sci 2022. [DOI: 10.1002/app.51432] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- María I. Alvarez Echazú
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - María E. Antona
- Facultad de Odontología, Cátedra de Bioquímica General y Bucal Universidad de Buenos Aires Caba Argentina
| | - Oriana Perna
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - Christian E. Olivetti
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - Gisela S. Alvarez
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - Elisa V. Macri
- Facultad de Odontología, Cátedra de Bioquímica General y Bucal Universidad de Buenos Aires Caba Argentina
| | - Claudio J. Perez
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Grupo Ciencia y Tecnología de Polímeros Universidad Nacional de Mar del Plata Mar del Plata Argentina
| | - Marina Czerner
- Grupo de Investigación Preservación y Calidad de Alimentos INCITAA‐Facultad de Ingeniería UNMDP Mar del Plata Argentina
| | - Silvia M. Friedman
- Facultad de Odontología, Cátedra de Bioquímica General y Bucal Universidad de Buenos Aires Caba Argentina
| | - Martín F. Desimone
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
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6
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Lopresti F, Botta L, La Carrubba V, Di Pasquale L, Settanni L, Gaglio R. Combining carvacrol and nisin in biodegradable films for antibacterial packaging applications. Int J Biol Macromol 2021; 193:117-126. [PMID: 34688672 DOI: 10.1016/j.ijbiomac.2021.10.118] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/06/2021] [Accepted: 10/17/2021] [Indexed: 10/20/2022]
Abstract
In this work, the feasibility of antibacterial biopolymeric films containing carvacrol (CRV) and a nisin commercial formulation (Nis) for potential food packaging applications was investigated. As polymer matrix, a commercial biodegradable polymer formulation of Mater-Bi (MB) was chosen due to its significant food packaging applications. CRV and Nis were chosen due to their well-established antibacterial properties and their potential synergistic effect. MB/CRV, MB/Nis, and MB/CRV/Nis systems were produced by melt mixing and compression molding. The mechanical properties of the films were evaluated by tensile tests. Differential scanning calorimetry was assessed aiming at investigating the effect of the two compounds and their mixture on the thermal properties of MB. The release profile of CRV and Nis from the MB-based films was evaluated in water at 4 °C by UV-Vis measurements and it was fitted with a power-law model. The antibacterial activity of MB-based films was tested in vitro against Listeria monocytogenes, Salmonella enteritidis, Escherichia coli, and Staphylococcus aureus. The combination of CRV and Nis strongly affected the properties of the MB-based films and ensured higher antibacterial activity if compared to MB/CRV and MB/Nis systems.
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Affiliation(s)
- Francesco Lopresti
- Dipartimento di Ingegneria, Università degli Studi di Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy
| | - Luigi Botta
- Dipartimento di Ingegneria, Università degli Studi di Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy.
| | - Vincenzo La Carrubba
- Dipartimento di Ingegneria, Università degli Studi di Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy
| | - Liliana Di Pasquale
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Luca Settanni
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Raimondo Gaglio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
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7
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Ardjoum N, Chibani N, Shankar S, Fadhel YB, Djidjelli H, Lacroix M. Development of antimicrobial films based on poly(lactic acid) incorporated with Thymus vulgaris essential oil and ethanolic extract of Mediterranean propolis. Int J Biol Macromol 2021; 185:535-542. [PMID: 34216656 DOI: 10.1016/j.ijbiomac.2021.06.194] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/15/2022]
Abstract
Antimicrobial films based on polylactic acid (PLA) were developed by incorporating Thymus vulgaris essential oil (TV-EOs) with different concentrations of ethanolic extract of Mediterranean propolis (EEP) (5 wt% and 10 wt% based on PLA). The antimicrobial activities of EEP were performed by the agar disc diffusion method. The EEP exhibited high antimicrobial properties with inhibition zone diameter of 12.1 and 11.58 mm against Staphylococcus aureus and Penicillium sp., respectively. The addition of TV-EOs to films containing 5 and 10 wt% of EEP decrease the elastic modulus from 1292 MPa to 1084 MPa and 911.1 MPa to 794 MPa compared with films containing 5 and 10% of EEP alone, respectively. However, the elongation at break increased by 64% after the addition of TV-EOs to the film containing 10 wt% of EEP. Thermal stability of films improvement by the addition of TV-EOs and EEP. Antimicrobial activity of the films showed that films containing 10 wt% EEP inhibited the growth of Candida albicans and the combination of EEP and TV-EOs in the PLA matrix showed a synergistic effect against Escherichia coli. The developed PLA-based films with antimicrobial activity have a potential application in food packaging to increase the shelf life of packaged food.
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Affiliation(s)
- Nadjat Ardjoum
- Laboratoire des Matériaux Polymères Avancés (LMPA), Département Génie des Procédés, Faculté de Technologie, Université de Bejaia, Route de Targa Ouzemour, 06000, Algeria; Research Laboratory in Sciences Applied to Food, Canadian Irradiation Center (CC), INRS-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, QC H7V 1B7, Canada
| | - Nacera Chibani
- Laboratoire des Matériaux Polymères Avancés (LMPA), Département Génie des Procédés, Faculté de Technologie, Université de Bejaia, Route de Targa Ouzemour, 06000, Algeria
| | - Shiv Shankar
- Research Laboratory in Sciences Applied to Food, Canadian Irradiation Center (CC), INRS-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, QC H7V 1B7, Canada
| | - Yosra Ben Fadhel
- Research Laboratory in Sciences Applied to Food, Canadian Irradiation Center (CC), INRS-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, QC H7V 1B7, Canada
| | - Hocine Djidjelli
- Laboratoire des Matériaux Polymères Avancés (LMPA), Département Génie des Procédés, Faculté de Technologie, Université de Bejaia, Route de Targa Ouzemour, 06000, Algeria
| | - Monique Lacroix
- Research Laboratory in Sciences Applied to Food, Canadian Irradiation Center (CC), INRS-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, QC H7V 1B7, Canada.
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8
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Sánchez-Aguinagalde O, Meaurio E, Lejardi A, Sarasua JR. Amorphous solid dispersions in poly(ε-caprolactone)/xanthohumol bioactive blends: physicochemical and mechanical characterization. J Mater Chem B 2021; 9:4219-4229. [PMID: 33998613 DOI: 10.1039/d0tb02964e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This paper reports the obtention of amorphous solid dispersions (ASDs) of xanthohumol (XH) in PCL containing up to 50 wt% of the bioactive compound in the amorphous form thanks to the advantageous specific interactions established in this system. The miscibility of the PCL/XH blends was investigated using DSC. Melting point depression analysis yielded a negative interaction parameter indicating the occurrence of favorable inter-association interactions. XRD analyses performed at room temperature agree with the crystallinity results obtained on the heating runs performed by DSC. FTIR spectroscopy reveals strong C[double bond, length as m-dash]OO-H specific interactions between the hydroxyl groups of XH and the carbonyl groups of PCL. The AFM analysis of the blends obtained by spin-coating shows the variation of crystalline morphology with composition. Finally, tensile tests reveal high toughness retention for the blends in which XH can be dispersed in the amorphous form (containing up to 50 wt% XH). In summary, PCL is a convenient matrix to disperse XH in the amorphous form, bringing the possibility of obtaining completely amorphous bioactive materials suitable for the development of non-stiff biomedical devices.
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Affiliation(s)
- Oroitz Sánchez-Aguinagalde
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering I, Plaza Ingeniero Torres Quevedo 1, Bilbao, Spain.
| | - Emilio Meaurio
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering I, Plaza Ingeniero Torres Quevedo 1, Bilbao, Spain.
| | - Ainhoa Lejardi
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering I, Plaza Ingeniero Torres Quevedo 1, Bilbao, Spain.
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering I, Plaza Ingeniero Torres Quevedo 1, Bilbao, Spain.
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9
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Amestoy H, Diego P, Meaurio E, Muñoz J, Sarasua JR. Crystallization Behavior and Mechanical Properties of Poly(ε-caprolactone) Reinforced with Barium Sulfate Submicron Particles. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2368. [PMID: 34063190 PMCID: PMC8125263 DOI: 10.3390/ma14092368] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/29/2021] [Accepted: 04/30/2021] [Indexed: 11/23/2022]
Abstract
Poly(ε-caprolactone) (PCL) was mixed with submicron particles of barium sulfate to obtain biodegradable radiopaque composites. X-ray images comparing with aluminum samples show that 15 wt.% barium sulfate (BaSO4) is sufficient to present radiopacity. Thermal studies by differential scanning calorimetry (DSC) show a statistically significant increase in PCL degree of crystallinity from 46% to 52% for 25 wt.% BaSO4. Non-isothermal crystallization tests were performed at different cooling rates to evaluate crystallization kinetics. The nucleation effect of BaSO4 was found to change the morphology and quantity of the primary crystals of PCL, which was also corroborated by the use of a polarized light optical microscope (PLOM). These results fit well with Avrami-Ozawa-Jeziorny model and show a secondary crystallization that contributes to an increase in crystal fraction with internal structure reorganization. The addition of barium sulfate particles in composite formulations with PCL improves stiffness but not strength for all compositions due to possible cavitation effects induced by debonding of reinforcement interphase.
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Affiliation(s)
| | | | | | - Jone Muñoz
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Faculty of Engineering in Bilbao, University of the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013 Bilbao, Spain; (H.A.); (P.D.); (E.M.)
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, Faculty of Engineering in Bilbao, University of the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013 Bilbao, Spain; (H.A.); (P.D.); (E.M.)
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10
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Sánchez-Aguinagalde O, Lejardi A, Meaurio E, Hernández R, Mijangos C, Sarasua JR. Novel Hydrogels of Chitosan and Poly(vinyl alcohol) Reinforced with Inorganic Particles of Bioactive Glass. Polymers (Basel) 2021; 13:691. [PMID: 33668909 PMCID: PMC7956335 DOI: 10.3390/polym13050691] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/20/2022] Open
Abstract
Chitosan (CS) and poly(vinyl alcohol) (PVA) hydrogels, a polymeric system that shows a broad potential in biomedical applications, were developed. Despite the advantages they present, their mechanical properties are insufficient to support the loads that appear on the body. Thus, it was proposed to reinforce these gels with inorganic glass particles (BG) in order to improve mechanical properties and bioactivity and to see how this reinforcement affects levofloxacin drug release kinetics. Scanning electron microscopy (SEM), X-ray diffraction (XRD), swelling tests, rheology and drug release studies characterized the resulting hydrogels. The experimental results verified the bioactivity of these gels, showed an improvement of the mechanical properties and proved that the added bioactive glass does affect the release kinetics.
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Affiliation(s)
- O. Sánchez-Aguinagalde
- Department of Mining-Metallurgy Engineering and Materials Science and POLYMAT, School of Engineering, University of the Basque Country (EHU-UPV), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.M.); (J.-R.S.)
| | - Ainhoa Lejardi
- Department of Mining-Metallurgy Engineering and Materials Science and POLYMAT, School of Engineering, University of the Basque Country (EHU-UPV), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.M.); (J.-R.S.)
| | - Emilio Meaurio
- Department of Mining-Metallurgy Engineering and Materials Science and POLYMAT, School of Engineering, University of the Basque Country (EHU-UPV), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.M.); (J.-R.S.)
| | - Rebeca Hernández
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, c/Juan de la Cierva 3, 28006 Madrid, Spain; (R.H.); (C.M.)
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, c/Juan de la Cierva 3, 28006 Madrid, Spain; (R.H.); (C.M.)
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science and POLYMAT, School of Engineering, University of the Basque Country (EHU-UPV), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain; (O.S.-A.); (E.M.); (J.-R.S.)
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Wu H, Lu J, Xiao D, Yan Z, Li S, Li T, Wan X, Zhang Z, Liu Y, Shen G, Li S, Luo Q. Development and characterization of antimicrobial protein films based on soybean protein isolate incorporating diatomite/thymol complex. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106138] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Lukic I, Vulic J, Ivanovic J. Antioxidant activity of PLA/PCL films loaded with thymol and/or carvacrol using scCO2 for active food packaging. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2020.100578] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Ramos M, Beltran A, Fortunati E, Peltzer M, Cristofaro F, Visai L, Valente AJ, Jiménez A, Kenny JM, Garrigós MC. Controlled Release of Thymol from Poly(Lactic Acid)-Based Silver Nanocomposite Films with Antibacterial and Antioxidant Activity. Antioxidants (Basel) 2020; 9:E395. [PMID: 32392898 PMCID: PMC7278659 DOI: 10.3390/antiox9050395] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 12/24/2022] Open
Abstract
Thymol and silver nanoparticles (Ag-NPs) were used to develop poly(lactic acid) (PLA)-based films with antioxidant and antibacterial performance. Different amounts of thymol (6 and 8 wt%) and 1 wt% Ag-NPs were added to PLA to produce the active films. Ag-NPs and thymol were successfully identified in the nanocomposite structures using spectroscopic techniques. A kinetic study was performed to evaluate the release of thymol and Ag-NPs from the nanocomposites to an aqueous food simulant (ethanol 10%, v/v) at 40 °C. The diffusion of thymol from the polymer matrix was affected by the presence of non-migrating Ag-NPs, which showed non-Fickian release behavior. The ternary system including 1 wt% Ag-NPs and 8 wt% thymol showed clear antibacterial performance by reducing the cell viability of Escherichia coli and Staphylococcus aureus by around 40% after 3 and 24 h of storage at 4, 25, and 37 °C compared to neat PLA. Significant antioxidant behavior of all active films was also confirmed using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The obtained nanocomposite films based on PLA and the addition of Ag-NPs and thymol were proven to have combined antioxidant and antibacterial performance, with controlled release of thymol. These formulations have potential applications in the development of innovative and customized active packaging systems to increase the shelf-life of food products.
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Affiliation(s)
- Marina Ramos
- Department of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, 03080 Alicante, Spain; (A.B.); (A.J.); (M.C.G.)
| | - Ana Beltran
- Department of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, 03080 Alicante, Spain; (A.B.); (A.J.); (M.C.G.)
| | - Elena Fortunati
- Civil Environmental Engineering Department, University of Perugia, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy; (E.F.); (J.M.K.)
| | - Mercedes Peltzer
- Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Bernal, Buenos Aires B1876BXD, Argentina;
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires (CABA) C1425FQB, Argentina
| | - Francesco Cristofaro
- Department of Molecular Medicine, Center for Health Technologies (C.H.T.), UdR INSTM, University of Pavia, 27100 Pavia, Italy; (F.C.); (L.V.)
| | - Livia Visai
- Department of Molecular Medicine, Center for Health Technologies (C.H.T.), UdR INSTM, University of Pavia, 27100 Pavia, Italy; (F.C.); (L.V.)
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici (ICS) Maugeri, Società Benefit S.p.A IRCCS, 27100 Pavia, Italy
| | - Artur J.M. Valente
- Department of Chemistry, University of Coimbra, CQC, 3004-535 Coimbra, Portugal;
| | - Alfonso Jiménez
- Department of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, 03080 Alicante, Spain; (A.B.); (A.J.); (M.C.G.)
| | - José María Kenny
- Civil Environmental Engineering Department, University of Perugia, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy; (E.F.); (J.M.K.)
| | - María Carmen Garrigós
- Department of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, 03080 Alicante, Spain; (A.B.); (A.J.); (M.C.G.)
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Lopresti F, Botta L, Scaffaro R, Bilello V, Settanni L, Gaglio R. Antibacterial biopolymeric foams: Structure–property relationship and carvacrol release kinetics. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109298] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Butron A, Llorente O, Fernandez J, Meaurio E, Sarasua JR. Morphology and mechanical properties of poly(ethylene brassylate)/cellulose nanocrystal composites. Carbohydr Polym 2019; 221:137-145. [PMID: 31227152 DOI: 10.1016/j.carbpol.2019.05.091] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 10/26/2022]
Abstract
Poly(ethylene brassylate), a novel inexpensive biodegradable polyester, has been reinforced with cellulose nanocrystals (CNCs) with the aim of improving its thermal stability and mechanical properties. The composites have been characterized through calorimetry, tensile tests, thermogravimetry and electron microscopy. The addition of small amounts of CNCs improves both the stiffness and the ductility of the composites, suggesting the existence of some compatibilizing effect. Adding large CNC amounts increases the Young modulus (e.g., 150% for 50 wt% CNCs), but now the material shows brittle behavior. Degradation of the CNCs starts at lower temperature suggesting mutual reactivity. The SEM analysis of the composites with ductile behavior reveals the formation of a percolating network crossing through the interconnected domains that conform a PEB-rich continuous phase. Processing consisting on reinforcement dispersion by sonication followed by melt processing results in composites in which the improvement of mechanical properties does not involve any trade-off.
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Affiliation(s)
- Amaia Butron
- Tecnalia, Sede Azpeitia, Área Anardi 5, E-20730 Azpeitia, Gipuzkoa, Spain; Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering, Plaza Ingeniero Torres Quevedo s/n, 48013 Bilbao, Spain.
| | - Olatz Llorente
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering, Plaza Ingeniero Torres Quevedo s/n, 48013 Bilbao, Spain
| | - Jorge Fernandez
- Polimerbio, Paseo Mikeletegi 83, 20009 Donostia-San Sebastian, Spain
| | - Emilio Meaurio
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering, Plaza Ingeniero Torres Quevedo s/n, 48013 Bilbao, Spain
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of The Basque Country (UPV/EHU), School of Engineering, Plaza Ingeniero Torres Quevedo s/n, 48013 Bilbao, Spain
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Fernández J, Ribeiro IA, Martin V, Martija OL, Zuza E, Bettencourt AF, Sarasua JR. Release mechanisms of urinary tract antibiotics when mixed with bioabsorbable polyesters. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:529-538. [DOI: 10.1016/j.msec.2018.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 07/23/2018] [Accepted: 08/05/2018] [Indexed: 01/24/2023]
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Recent developments in drug eluting devices with tailored interfacial properties. Adv Colloid Interface Sci 2017; 249:181-191. [PMID: 28532663 DOI: 10.1016/j.cis.2017.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/02/2017] [Accepted: 05/02/2017] [Indexed: 11/23/2022]
Abstract
Drug eluting devices have greatly evolved during past years to become fundamental products of great marketing importance in the biomedical field. There is currently a large diversity of highly specialized devices for specific applications, making the development of these devices an exciting field of research. The replacement of the former bare metal devices by devices loaded with drugs allowed the sustained and controlled release of drugs, to achieve the desired local therapeutic concentration of drug. The newer devices have been "engineered" with surfaces containing micro- and nanoscale features in a well-controlled manner, that have shown to significantly affect cellular and subcellular function of various biological systems. For example, the topography can be structured to form an antifouling surface mimicking the defense mechanisms found in nature, like the skin of the shark. In the case of bone implants, well-controlled nanostructured interfaces can promote osteoblast differentiation and matrix production, and enhance short-term and long-term osteointegration. In any case, the goal of current research is to design implants that induce controlled, guided, and rapid healing. This article reviews recent trends in the development of drug eluting devices, as well as recent developments on the micro/nanotechnology scales, and their future challenges. For this purpose medical devices have been divided according to the different systems of the body they are focused to: orthopedic devices, breathing stents, gastrointestinal and urinary systems, devices for cardiovascular diseases, neuronal implants, and wound dressings.
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