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Halfter N, Espinosa-Cano E, Pontes-Quero GM, Ramírez-Jiménez RA, Heinemann C, Möller S, Schnabelrauch M, Wiesmann HP, Hintze V, Aguilar MR. Ketoprofen-Based Polymer-Drug Nanoparticles Provide Anti-Inflammatory Properties to HA/Collagen Hydrogels. J Funct Biomater 2023; 14:jfb14030160. [PMID: 36976084 PMCID: PMC10059015 DOI: 10.3390/jfb14030160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/09/2023] [Accepted: 03/11/2023] [Indexed: 03/19/2023] Open
Abstract
Current limitations of wound dressings for treating chronic wounds require the development of novel approaches. One of these is the immune-centered approach, which aims to restore the pro-regenerative and anti-inflammatory properties of macrophages. Under inflammatory conditions, ketoprofen nanoparticles (KT NPs) can reduce pro-inflammatory markers of macrophages and increase anti-inflammatory cytokines. To assess their suitability as part of wound dressings, these NPs were combined with hyaluronan (HA)/collagen-based hydro- (HGs) and cryogels (CGs). Different HA and NP concentrations and loading techniques for NP incorporation were used. The NP release, gel morphology, and mechanical properties were studied. Generally, colonialization of the gels with macrophages resulted in high cell viability and proliferation. Furthermore, direct contact of the NPs to the cells reduced the level of nitric oxide (NO). The formation of multinucleated cells on the gels was low and further decreased by the NPs. For the HGs that produced the highest reduction in NO, extended ELISA studies showed reduced levels of the pro-inflammatory markers PGE2, IL-12 p40, TNF-α, and IL-6. Thus, HA/collagen-based gels containing KT NPs may represent a novel therapeutic approach for treating chronic wounds. Whether effects observed in vitro translate into a favorable profile on skin regeneration in vivo will require rigorous testing.
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Affiliation(s)
- Norbert Halfter
- Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, Budapester Straße 27, 01069 Dresden, Germany
| | - Eva Espinosa-Cano
- Group of Biomaterials, Institute of Polymer Science and Technology ICTP-CSIC, C/Juan de la Cierva 3, 28006 Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, C/Monforte de Lemos 3/5, 28029 Madrid, Spain
| | - Gloria María Pontes-Quero
- Group of Biomaterials, Institute of Polymer Science and Technology ICTP-CSIC, C/Juan de la Cierva 3, 28006 Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, C/Monforte de Lemos 3/5, 28029 Madrid, Spain
| | - Rosa Ana Ramírez-Jiménez
- Group of Biomaterials, Institute of Polymer Science and Technology ICTP-CSIC, C/Juan de la Cierva 3, 28006 Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, C/Monforte de Lemos 3/5, 28029 Madrid, Spain
| | - Christiane Heinemann
- Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, Budapester Straße 27, 01069 Dresden, Germany
| | - Stephanie Möller
- Department of Biomaterials, INNOVENT e. V., Prüssingstraße 27B, 07745 Jena, Germany
| | | | - Hans-Peter Wiesmann
- Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, Budapester Straße 27, 01069 Dresden, Germany
| | - Vera Hintze
- Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, Budapester Straße 27, 01069 Dresden, Germany
- Correspondence: (V.H.); (M.R.A.)
| | - Maria Rosa Aguilar
- Group of Biomaterials, Institute of Polymer Science and Technology ICTP-CSIC, C/Juan de la Cierva 3, 28006 Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, C/Monforte de Lemos 3/5, 28029 Madrid, Spain
- Correspondence: (V.H.); (M.R.A.)
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Velasco-Salgado C, Pontes-Quero GM, García-Fernández L, Aguilar MR, de Wit K, Vázquez-Lasa B, Rojo L, Abradelo C. The Role of Polymeric Biomaterials in the Treatment of Articular Osteoarthritis. Pharmaceutics 2022; 14:pharmaceutics14081644. [PMID: 36015270 PMCID: PMC9413163 DOI: 10.3390/pharmaceutics14081644] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/28/2022] [Accepted: 07/30/2022] [Indexed: 12/03/2022] Open
Abstract
Osteoarthritis is a high-prevalence joint disease characterized by the degradation of cartilage, subchondral bone thickening, and synovitis. Due to the inability of cartilage to self-repair, regenerative medicine strategies have become highly relevant in the management of osteoarthritis. Despite the great advances in medical and pharmaceutical sciences, current therapies stay unfulfilled, due to the inability of cartilage to repair itself. Additionally, the multifactorial etiology of the disease, including endogenous genetic dysfunctions and exogenous factors in many cases, also limits the formation of new cartilage extracellular matrix or impairs the regular recruiting of chondroprogenitor cells. Hence, current strategies for osteoarthritis management involve not only analgesics, anti-inflammatory drugs, and/or viscosupplementation but also polymeric biomaterials that are able to drive native cells to heal and repair the damaged cartilage. This review updates the most relevant research on osteoarthritis management that employs polymeric biomaterials capable of restoring the viscoelastic properties of cartilage, reducing the symptomatology, and favoring adequate cartilage regeneration properties.
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Affiliation(s)
- Carmen Velasco-Salgado
- Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925 Alcorcon, Spain
| | - Gloria María Pontes-Quero
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, Calle Juan de la Cierva, 3, 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Bioingienería, Biomateriales y Biotecnología CIBER-BBN, Instituto de Salud Carlos III, Calle Monforte de Lemos S/N, 28029 Madrid, Spain
| | - Luis García-Fernández
- Centro de Investigación Biomédica en Red de Bioingienería, Biomateriales y Biotecnología CIBER-BBN, Instituto de Salud Carlos III, Calle Monforte de Lemos S/N, 28029 Madrid, Spain
| | - María Rosa Aguilar
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, Calle Juan de la Cierva, 3, 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Bioingienería, Biomateriales y Biotecnología CIBER-BBN, Instituto de Salud Carlos III, Calle Monforte de Lemos S/N, 28029 Madrid, Spain
| | - Kyra de Wit
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, Calle Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Blanca Vázquez-Lasa
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, Calle Juan de la Cierva, 3, 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Bioingienería, Biomateriales y Biotecnología CIBER-BBN, Instituto de Salud Carlos III, Calle Monforte de Lemos S/N, 28029 Madrid, Spain
| | - Luis Rojo
- Instituto de Ciencia y Tecnología de Polímeros (ICTP), CSIC, Calle Juan de la Cierva, 3, 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Bioingienería, Biomateriales y Biotecnología CIBER-BBN, Instituto de Salud Carlos III, Calle Monforte de Lemos S/N, 28029 Madrid, Spain
- Correspondence: (L.R.); (C.A.)
| | - Cristina Abradelo
- Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925 Alcorcon, Spain
- Correspondence: (L.R.); (C.A.)
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Pontes-Quero GM, Esteban-Rubio S, Pérez Cano J, Aguilar MR, Vázquez-Lasa B. Oregano Essential Oil Micro- and Nanoencapsulation With Bioactive Properties for Biotechnological and Biomedical Applications. Front Bioeng Biotechnol 2021; 9:703684. [PMID: 34368098 PMCID: PMC8340037 DOI: 10.3389/fbioe.2021.703684] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/21/2021] [Indexed: 11/13/2022] Open
Abstract
Due to the preservative, antioxidant, antimicrobial, and therapeutic properties of oregano essential oil (OEO), it has received an emerging interest for biotechnological and biomedical applications. However, stability and bioactivity can be compromised by its natural volatile and hydrophobic nature, and by external factors including light, heat, or oxygen. Therefore, micro- and nanoencapsulation are being employed to guarantee oregano oil protection from outside aggressions and to maximize its potential. Oregano oil encapsulation is an interesting strategy used to increase its stability, enhance its bioactivity, and decrease its volatility. At the same time, the versatility that micro- and nanocarriers offer, allows to prepare tailored systems that can provide a controlled and targeted release of the encapsulated principle, influence its bioactive activities, or even provide additional properties. Most common materials used to prepare these carriers are based on lipids and cyclodextrins, due to their hydrophobic nature, polymers due to their versatility in composition, and hybrid lipid-polymer systems. In this context, recently developed micro- and nanocarriers encapsulating oregano oil with applications in the biotechnological and biomedical fields will be discussed.
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Affiliation(s)
- Gloria María Pontes-Quero
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology, ICTP-CSIC, Madrid, Spain.,Alodia Farmacéutica SL, Santiago Grisolía 2 D130/L145, Madrid, Spain.,Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Madrid, Spain
| | | | - Juan Pérez Cano
- Alodia Farmacéutica SL, Santiago Grisolía 2 D130/L145, Madrid, Spain
| | - María Rosa Aguilar
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology, ICTP-CSIC, Madrid, Spain.,Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Madrid, Spain
| | - Blanca Vázquez-Lasa
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology, ICTP-CSIC, Madrid, Spain.,Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Madrid, Spain
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Pontes-Quero GM, Benito-Garzón L, Pérez Cano J, Aguilar MR, Vázquez-Lasa B. Modulation of Inflammatory Mediators by Polymeric Nanoparticles Loaded with Anti-Inflammatory Drugs. Pharmaceutics 2021; 13:pharmaceutics13020290. [PMID: 33672354 PMCID: PMC7926915 DOI: 10.3390/pharmaceutics13020290] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/12/2021] [Accepted: 02/18/2021] [Indexed: 02/06/2023] Open
Abstract
The first-line treatment of osteoarthritis is based on anti-inflammatory drugs, the most currently used being nonsteroidal anti-inflammatory drugs, selective cyclooxygenase 2 (COX-2) inhibitors and corticoids. Most of them present cytotoxicity and low bioavailability in physiological conditions, making necessary the administration of high drug concentrations causing several side effects. The goal of this work was to encapsulate three hydrophobic anti-inflammatory drugs of different natures (celecoxib, tenoxicam and dexamethasone) into core-shell terpolymer nanoparticles with potential applications in osteoarthritis. Nanoparticles presented hydrodynamic diameters between 110 and 130 nm and almost neutral surface charges (between −1 and −5 mV). Encapsulation efficiencies were highly dependent on the loaded drug and its water solubility, having higher values for celecoxib (39–72%) followed by tenoxicam (20–24%) and dexamethasone (14–26%). Nanoencapsulation reduced celecoxib and dexamethasone cytotoxicity in human articular chondrocytes and murine RAW264.7 macrophages. Moreover, the three loaded systems did not show cytotoxic effects in a wide range of concentrations. Celecoxib and dexamethasone-loaded nanoparticles reduced the release of different inflammatory mediators (NO, TNF-α, IL-1β, IL-6, PGE2 and IL-10) by lipopolysaccharide (LPS)-stimulated RAW264.7. Tenoxicam-loaded nanoparticles reduced NO and PGE2 production, although an overexpression of IL-1β, IL-6 and IL-10 was observed. Finally, all nanoparticles proved to be biocompatible in a subcutaneous injection model in rats. These findings suggest that these loaded nanoparticles could be suitable candidates for the treatment of inflammatory processes associated with osteoarthritis due to their demonstrated in vitro activity as regulators of inflammatory mediator production.
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Affiliation(s)
- Gloria María Pontes-Quero
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (G.M.P.-Q.); (B.V.-L.)
- Alodia Farmacéutica SL, Santiago Grisolía 2 D130/L145, 28760 Madrid, Spain;
- Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
| | - Lorena Benito-Garzón
- Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain
- Correspondence: (L.B.-G.); (M.R.A.); Tel.: +34-915-622-900 (M.R.A.)
| | - Juan Pérez Cano
- Alodia Farmacéutica SL, Santiago Grisolía 2 D130/L145, 28760 Madrid, Spain;
| | - María Rosa Aguilar
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (G.M.P.-Q.); (B.V.-L.)
- Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
- Correspondence: (L.B.-G.); (M.R.A.); Tel.: +34-915-622-900 (M.R.A.)
| | - Blanca Vázquez-Lasa
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (G.M.P.-Q.); (B.V.-L.)
- Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
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Pérez de Vega MJ, Moreno-Fernández S, Pontes-Quero GM, González-Amor M, Vázquez-Lasa B, Sabater-Muñoz B, Briones AM, Aguilar MR, Miguel M, González-Muñiz R. Characterization of Novel Synthetic Polyphenols: Validation of Antioxidant and Vasculoprotective Activities. Antioxidants (Basel) 2020; 9:antiox9090787. [PMID: 32854368 PMCID: PMC7555119 DOI: 10.3390/antiox9090787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 12/25/2022] Open
Abstract
Antioxidant compounds, including polyphenols, have therapeutic effects because of their anti-inflammatory, antihypertensive, antithrombotic and antiproliferative properties. They play important roles in protecting the cardiovascular and neurological systems, by having preventive or protective effects against free radicals produced by either normal or pathological metabolism in such systems. For instance, resveratrol, a well-known potent antioxidant, has a counteracting effect on the excess of reactive oxygen species (ROS) and has a number of therapeutic benefits, like anti-inflammatory, anti-cancer and cardioprotective activities. Based on previous work from our group, and on the most frequent OH substitutions of natural polyphenols, we designed two series of synthetically accessible bis-polyhydroxyphenyl derivatives, separated by amide or urea linkers. These compounds exhibit high antioxidant ability (oxygen radical absorbance capacity (ORAC) assay) and interesting radical scavenging activity (RSA) values (2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and α,α-diphenyl-β-picrylhydrazyl (DPPH) tests). Some of the best polyphenols were evaluated in two biological systems, endothelial cells (in vitro) and whole aorta (ex vivo), highly susceptible for the deleterious effects of prooxidants under different inflammatory conditions, showing protection against oxidative stress induced by inflammatory stimuli relevant in cardiovascular diseases, i.e., Angiotensin II and IL-1β. Selected compounds also showed strong in vivo antioxidant properties when evaluated in the model organism Saccharomyces cerevisiae.
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Affiliation(s)
| | - Silvia Moreno-Fernández
- Instituto de Investigación en Ciencias de la Alimentación (CSIC-UAM, CEI+UAM), C/Nicolás Cabrera 9, 28049 Madrid, Spain; (S.M.-F.); (M.M.)
| | - Gloria María Pontes-Quero
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (G.M.P.-Q.); (B.V.-L.); (M.R.A.)
- Alodia Farmacéutica SL, Santiago Grisolía 2 D130/L145, 28760 Madrid, Spain
| | - María González-Amor
- Facultad de Medicina, Departamento de Farmacología, Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Hospital La Paz, Arzobispo Morcillo 4, 28029 Madrid, Spain; (M.G.-A.); (A.M.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid Spain
| | - Blanca Vázquez-Lasa
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (G.M.P.-Q.); (B.V.-L.); (M.R.A.)
- Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
| | - Beatriz Sabater-Muñoz
- Instituto de Biología Molecular y Celular de Plantas (IBMCP, CSIC-UPV), Ingeniero Fausto Elio, 46022 Valencia, Spain;
| | - Ana M. Briones
- Facultad de Medicina, Departamento de Farmacología, Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas Hospital La Paz, Arzobispo Morcillo 4, 28029 Madrid, Spain; (M.G.-A.); (A.M.B.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid Spain
| | - María R. Aguilar
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain; (G.M.P.-Q.); (B.V.-L.); (M.R.A.)
- Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
| | - Marta Miguel
- Instituto de Investigación en Ciencias de la Alimentación (CSIC-UAM, CEI+UAM), C/Nicolás Cabrera 9, 28049 Madrid, Spain; (S.M.-F.); (M.M.)
| | - Rosario González-Muñiz
- Instituto de Química Médica, IQM-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain;
- Correspondence: ; Tel.: +3-4912-587-434
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Pontes-Quero GM, García-Fernández L, Aguilar MR, San Román J, Pérez Cano J, Vázquez-Lasa B. Active viscosupplements for osteoarthritis treatment. Semin Arthritis Rheum 2019; 49:171-183. [PMID: 30878154 DOI: 10.1016/j.semarthrit.2019.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/05/2019] [Accepted: 02/12/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Osteoarthritis is a chronic, painful and disabling disease which prevalence is increasing in developing countries. Patients with osteoarthritis present a reduced synovial fluid viscoelasticity due to a reduction in concentration and molecular weight of hyaluronic acid. Currently, the main treatment used to restore the compromised rheological properties of synovial fluid is the viscosupplementation by hyaluronic acid injections that can be combined with oral anti-inflammatory drugs for pain relief. Combination of viscosupplements with chemical agents or drugs is emerging as a new strategy to provide a double action of synovial fluid viscoelasticity recovery and the therapeutic effect of the bioactive principle. METHODS In this review, we present the latest research on the combination of viscosupplements with active molecules. We conducted a literature review of articles published in different web search engines and categorized according to the active molecule introduced into the viscosupplement. RESULTS Generally, the introduction of anti-inflammatory molecules have shown to improve pain relief although some cytotoxicity has been demonstrated especially for non-steroidal anti-inflammatory drugs. Other molecules such as antioxidant or disease modifying osteoarthritis drugs have been reported to improve viscosupplementation action. Drug delivery systems combined with hyaluronic acid could enhance the activity of the encapsulated molecules and provide better control over the drug release. Finally, biological approaches such as the use of stem cells or platelet-rich plasma seem to be the most promising strategies for cartilage recovery. CONCLUSIONS Combination therapy of viscosupplements with therapeutic agents, drug delivery systems or regenerative therapies can improve viscosupplementation outcome in terms of pain relief and joint functionality. However, further research is needed in order to reach more conclusive results.
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Affiliation(s)
- Gloria María Pontes-Quero
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Alodia Farmacéutica SL, Madrid, Spain
| | - Luis García-Fernández
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - María Rosa Aguilar
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.
| | - Julio San Román
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | | | - Blanca Vázquez-Lasa
- Group of Biomaterials, Department of Polymeric Nanomaterials and Biomaterials, Institute of Polymer Science and Technology (ICTP-CSIC), Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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Olmos D, Pontes-Quero GM, Corral A, González-Gaitano G, González-Benito J. Preparation and Characterization of Antimicrobial Films Based on LDPE/Ag Nanoparticles with Potential Uses in Food and Health Industries. Nanomaterials (Basel) 2018; 8:nano8020060. [PMID: 29364193 PMCID: PMC5853693 DOI: 10.3390/nano8020060] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 01/16/2018] [Accepted: 01/16/2018] [Indexed: 12/18/2022]
Abstract
In this work, the antimicrobial effect of silver nanoparticles in polyethylene based nanocomposites has been investigated using a non-conventional processing method to produce homogeneous materials. High energy ball milling under cryogenic conditions was used to achieve a powder of well-blended low-density polyethylene and commercial silver nanoparticles. The final composites in the form of films were obtained by hot pressing. The effect of various silver nanoparticles content (0, 0.5, 1 and 2 wt %) on the properties of low-density polyethylene and the antimicrobial effectiveness of the composite against DH5α Escherichia coli were studied. The presence of silver nanoparticles did not seem to affect the surface energy and thermal properties of the materials. Apart from the inhibition of bacterial growth, slight changes in the aspect ratio of the bacteria with the content of particles were observed, suggesting a direct relationship between the presence of silver nanoparticles and the proliferation of DH5α E. coli (Escherichia coli) cells. Results indicate that these materials may be used to commercially produce antimicrobial polymers with potential applications in the food and health industries.
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Affiliation(s)
- Dania Olmos
- Department of Materials Science and Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés 28911, Madrid, Spain.
| | - Gloria María Pontes-Quero
- Department of Materials Science and Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés 28911, Madrid, Spain.
| | - Angélica Corral
- Department of Bioengineering and Aerospace Engineering, TERMeG, Universidad Carlos III de Madrid, Leganés 28911, Madrid, Spain.
| | | | - Javier González-Benito
- Department of Materials Science and Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés 28911, Madrid, Spain.
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