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Miguel SP, D’Angelo C, Ribeiro MP, Simões R, Coutinho P. Chemical Composition of Macroalgae Polysaccharides from Galician and Portugal Coasts: Seasonal Variations and Biological Properties. Mar Drugs 2023; 21:589. [PMID: 37999413 PMCID: PMC10672017 DOI: 10.3390/md21110589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Crude polysaccharides extracted from the Codium sp. and Osmundea sp. macroalgae collected in different seasons (winter, spring and summer) from the Galician and North Portugal coasts were characterised, aiming to support their biomedical application to wound healing. An increase in polysaccharides' sulphate content was registered from winter to summer, and higher values were obtained for Osmundea sp. In turn, the monosaccharide composition constantly changed with a decrease in glucose in Osmundea sp. from spring to winter. For Codium sp., a higher increase was noticed regarding glucose content in the Galician and Portugal coasts. Galactose was the major monosaccharide in all the samples, remaining stable in all seasons and collection sites. These results corroborate the sulphate content and antioxidant activity, since the Osmundea sp.-derived polysaccharides collected in summer exhibited higher scavenging radical ability. The biocompatibility and wound scratch assays revealed that the Osmundea sp. polysaccharide extracted from the Portugal coast in summer possessed more potential for promoting fibroblast migration. This study on seasonal variations of polysaccharides, sulphate content, monosaccharide composition and, consequently, biological properties provides practical guidance for determining the optimal season for algae harvest to standardise preparations of polysaccharides for the biomedical field.
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Affiliation(s)
- Sónia P. Miguel
- CPIRN-UDI/IPG, Center for Potential and Innovation of Natural Resources, Polytechnic of Guarda, Av. Dr. Francisco Sá Carneiro, 50, 6300-559 Guarda, Portugal; (S.P.M.); (C.D.); (M.P.R.)
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Caíque D’Angelo
- CPIRN-UDI/IPG, Center for Potential and Innovation of Natural Resources, Polytechnic of Guarda, Av. Dr. Francisco Sá Carneiro, 50, 6300-559 Guarda, Portugal; (S.P.M.); (C.D.); (M.P.R.)
| | - Maximiano P. Ribeiro
- CPIRN-UDI/IPG, Center for Potential and Innovation of Natural Resources, Polytechnic of Guarda, Av. Dr. Francisco Sá Carneiro, 50, 6300-559 Guarda, Portugal; (S.P.M.); (C.D.); (M.P.R.)
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Rogério Simões
- FibEnTech, Fiber Materials and Envornmental Technologies, University of Beira Interior, R. Marques Avila e Bolama, 6201-001 Covilhã, Portugal;
| | - Paula Coutinho
- CPIRN-UDI/IPG, Center for Potential and Innovation of Natural Resources, Polytechnic of Guarda, Av. Dr. Francisco Sá Carneiro, 50, 6300-559 Guarda, Portugal; (S.P.M.); (C.D.); (M.P.R.)
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
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Filipe HAL, Moreira AF, Miguel SP, Ribeiro MP, Coutinho P. Interaction of Near-Infrared (NIR)-Light Responsive Probes with Lipid Membranes: A Combined Simulation and Experimental Study. Pharmaceutics 2023; 15:1853. [PMID: 37514039 PMCID: PMC10383845 DOI: 10.3390/pharmaceutics15071853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/21/2023] [Accepted: 06/25/2023] [Indexed: 07/30/2023] Open
Abstract
Cancer is considered a major societal challenge for the next decade worldwide. Developing strategies for simultaneous diagnosis and treatment has been considered a promising tool for fighting cancer. For this, the development of nanomaterials incorporating prototypic near-infrared (NIR)-light responsive probes, such as heptamethine cyanines, has been showing very promising results. The heptamethine cyanine-incorporating nanomaterials can be used for a tumor's visualization and, upon interaction with NIR light, can also produce a photothermal/photodynamic effect with a high spatio-temporal resolution and minimal side effects, leading to an improved therapeutic outcome. In this work, we studied the interaction of 12 NIR-light responsive probes with lipid membrane models by molecular dynamics simulations. We performed a detailed characterization of the location, orientation, and local perturbation effects of these molecules on the lipid bilayer. Based on this information, the probes were divided into two groups, predicting a lower and higher perturbation of the lipid bilayer. From each group, one molecule was selected for testing in a membrane leakage assay. The experimental data validate the hypothesis that molecules with charged substituents, which function as two polar anchors for the aqueous phase while spanning the membrane thickness, are more likely to disturb the membrane by the formation of defects and pores, increasing the membrane leakage. The obtained results are expected to contribute to the selection of the most suitable molecules for the desired application or eventually guiding the design of probe modifications for achieving an optimal interaction with tumor cell membranes.
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Affiliation(s)
- Hugo A L Filipe
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- Coimbra Chemistry Center, Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal
| | - André F Moreira
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Sónia P Miguel
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Maximiano P Ribeiro
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
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Loureiro J, Miguel SP, Galván-Chacón V, Patrocinio D, Pagador JB, Sánchez-Margallo FM, Ribeiro MP, Coutinho P. Three-Dimensionally Printed Hydrogel Cardiac Patch for Infarct Regeneration Based on Natural Polysaccharides. Polymers (Basel) 2023; 15:2824. [PMID: 37447470 DOI: 10.3390/polym15132824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Myocardial infarction is one of the more common cardiovascular diseases, and remains the leading cause of death, globally. Hydrogels (namely, those using natural polymers) provide a reliable tool for regenerative medicine and have become a promising option for cardiac tissue regeneration due to their hydrophilic character and their structural similarity to the extracellular matrix. Herein, a functional ink based on the natural polysaccharides Gellan gum and Konjac glucomannan has, for the first time, been applied in the production of a 3D printed hydrogel with therapeutic potential, with the goal of being locally implanted in the infarcted area of the heart. Overall, results revealed the excellent printability of the bioink for the development of a stable, porous, biocompatible, and bioactive 3D hydrogel, combining the specific advantages of Gellan gum and Konjac glucomannan with proper mechanical properties, which supports the simplification of the implantation process. In addition, the structure have positive effects on endothelial cells' proliferation and migration that can promote the repair of injured cardiac tissue. The results presented will pave the way for simple, low-cost, and efficient cardiac tissue regeneration using a 3D printed hydrogel cardiac patch with potential for clinical application for myocardial infarction treatment in the near future.
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Affiliation(s)
- Jorge Loureiro
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
| | - Sónia P Miguel
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6201-001 Covilhã, Portugal
| | | | - David Patrocinio
- Jesús Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain
| | - José Blas Pagador
- Jesús Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain
- TERAV/ISCIII-Red Española de Terapias Avanzadas, 10071 Cáceres, Spain
| | - Francisco M Sánchez-Margallo
- Jesús Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain
- TERAV/ISCIII-Red Española de Terapias Avanzadas, 10071 Cáceres, Spain
- CIBER CV-Centro de Investigación Biomédica en Red-Enfermedades Cardiovasculares, 28029 Madrid, Spain
| | - Maximiano P Ribeiro
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6201-001 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-IPG-Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6201-001 Covilhã, Portugal
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Duarte AC, Costa EC, Filipe HAL, Saraiva SM, Jacinto T, Miguel SP, Ribeiro MP, Coutinho P. Animal-derived products in science and current alternatives. Biomater Adv 2023; 151:213428. [PMID: 37146527 DOI: 10.1016/j.bioadv.2023.213428] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 05/07/2023]
Abstract
More than fifty years after the 3Rs definition and despite the continuous implementation of regulatory measures, animals continue to be widely used in basic research. Their use comprises not only in vivo experiments with animal models, but also the production of a variety of supplements and products of animal origin for cell and tissue culture, cell-based assays, and therapeutics. The animal-derived products most used in basic research are fetal bovine serum (FBS), extracellular matrix proteins such as Matrigel™, and antibodies. However, their production raises several ethical issues regarding animal welfare. Additionally, their biological origin is associated with a high risk of contamination, resulting, frequently, in poor scientific data for clinical translation. These issues support the search for new animal-free products able to replace FBS, Matrigel™, and antibodies in basic research. In addition, in silico methodologies play an important role in the reduction of animal use in research by refining the data previously to in vitro and in vivo experiments. In this review, we depicted the current available animal-free alternatives in in vitro research.
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Affiliation(s)
- Ana C Duarte
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Elisabete C Costa
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Hugo A L Filipe
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Sofia M Saraiva
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Telma Jacinto
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Sónia P Miguel
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Maximiano P Ribeiro
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal.
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Loureiro J, Miguel SP, Galván-Chacón VP, Patrocinio D, Sánchez-Margallo FM, Pagador JB, Ribeiro MP, Coutinho P. DEVELOPMENT OF A NATURAL POLYMER-BASED HYDROGEL FOR BIOENGINEERED VASCULAR GRAFTS. Br J Surg 2023. [DOI: 10.1093/bjs/znac443.044] [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] [Indexed: 01/09/2023]
Abstract
Abstract
Introduction
Cardiovascular diseases are a main cause of death globally, and their treatment implies various vascular repairs through different techniques like angioplasty, stent placement in the blocked artery, or bypass surgery. Artificial grafts would significantly reduce the number of non-treated patients, but middle and long-term failures compromise their clinical use.
Methods
Herein, we developed a hydrogel composed of gellan gum, gelatin, and sodium alginate for bioengineered vascular graft production. The vascular grafts were characterized by their swelling, porosity, biodegradability, and cytotoxic profile.
Results
The bioengineered materials were easily assembled due to the thermoresponsive nature of the hydrogel and had a vessel-like structure resembling the native vasculature. These vessels had a very controlled swelling degree, and notably, the hydrogel structure was stable and maintained its morphology. The vascular grafts had a porosity of 82.6 ± 4.3% and exhibited a controlled biodegradation rate with a maximum of 24.2 ± 3.0%. As expected, the natural materials used showed no cytotoxicity toward HUVECs cells since they are natural polymers described as biocompatible.
Conclusions
This developed natural hydrogel showed promising potential to be used to develop bioengineered vascular grafts.
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Affiliation(s)
- J Loureiro
- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda
| | - S P Miguel
- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda.CICS-UBI- Health Sciences Research Centre, University of Beira Interior
| | | | | | | | - J B Pagador
- Jesús Usón Minimally Invasive Surgery Center
| | - M P Ribeiro
- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda.CICS-UBI- Health Sciences Research Centre, University of Beira Interior
| | - P Coutinho
- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda.CICS-UBI- Health Sciences Research Centre, University of Beira Interior
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Silva AS, Costa EC, Reis S, Spencer C, Calhelha RC, Miguel SP, Ribeiro MP, Barros L, Vaz JA, Coutinho P. Silk Sericin: A Promising Sustainable Biomaterial for Biomedical and Pharmaceutical Applications. Polymers (Basel) 2022; 14:polym14224931. [PMID: 36433058 PMCID: PMC9699483 DOI: 10.3390/polym14224931] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 09/30/2022] [Revised: 11/01/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022] Open
Abstract
Silk is a natural composite fiber composed mainly of hydrophobic fibroin and hydrophilic sericin, produced by the silkworm Bombyx mori. In the textile industry, the cocoons of B. mori are processed into silk fabric, where the sericin is substantially removed and usually discarded in wastewater. This wastewater pollutes the environment and water sources. However, sericin has been recognized as a potential biomaterial due to its biocompatibility, immunocompatibility, biodegradability, anti-inflammatory, antibacterial, antioxidant and photoprotective properties. Moreover, sericin can produce hydrogels, films, sponges, foams, dressings, particles, fibers, etc., for various biomedical and pharmaceutical applications (e.g., tissue engineering, wound healing, drug delivery, cosmetics). Given the severe environmental pollution caused by the disposal of sericin and its beneficial properties, there has been growing interest in upcycling this biomaterial, which could have a strong and positive economic, social and environmental impact.
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Affiliation(s)
- Andreia S. Silva
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Elisabete C. Costa
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
| | - Sara Reis
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Carina Spencer
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
| | - Ricardo C. Calhelha
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Correspondence: (R.C.C.); (P.C.)
| | - Sónia P. Miguel
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Maximiano P. Ribeiro
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Lillian Barros
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Josiana A. Vaz
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Paula Coutinho
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
- Correspondence: (R.C.C.); (P.C.)
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Loureiro J, Miguel SP, Seabra IJ, Ribeiro MP, Coutinho P. Single-Step Self-Assembly of Zein–Honey–Chitosan Nanoparticles for Hydrophilic Drug Incorporation by Flash Nanoprecipitation. Pharmaceutics 2022; 14:pharmaceutics14050920. [PMID: 35631506 PMCID: PMC9144985 DOI: 10.3390/pharmaceutics14050920] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 12/11/2022] Open
Abstract
Zein- and chitosan-based nanoparticles have been described as promising carrier systems for food, biomedical and pharmaceutical applications. However, the manufacture of size-controlled zein and chitosan particles is challenging. In this study, an adapted anti-solvent nanoprecipitation method was developed. The effects of the concentration of zein and chitosan and the pH of the collection solution on the properties of the zein–honey–chitosan nanoparticles were investigated. Flash nanoprecipitation was demonstrated as a rapid, scalable, single-step method to achieve the self-assembly of zein–honey–chitosan nanoparticles. The nanoparticles size was tuned by varying certain formulation parameters, including the total concentration and ratio of the polymers. The zein–honey–chitosan nanoparticles’ hydrodynamic diameter was below 200 nm and the particles were stable for 30 days. Vitamin C was used as a hydrophilic model substance and efficiently encapsulated into these nanoparticles. This study opens a promising pathway for one-step producing zein–honey–chitosan nanoparticles by flash nanoprecipitation for hydrophilic compounds’ encapsulation.
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Affiliation(s)
- Jorge Loureiro
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
| | - Sónia P. Miguel
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Inês J. Seabra
- Bioengineering Department, Lehigh University, Bethlehem, PA 18015, USA;
| | - Maximiano P. Ribeiro
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (J.L.); (S.P.M.); (M.P.R.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Correspondence: ; Tel.: +351-965544187
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Miguel SP, Loureiro J, Ribeiro MP, Coutinho P. Osmundea sp. macroalgal polysaccharide-based nanoparticles produced by flash nanocomplexation technique. Int J Biol Macromol 2022; 204:9-18. [PMID: 35122803 DOI: 10.1016/j.ijbiomac.2022.01.180] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/26/2022] [Accepted: 01/28/2022] [Indexed: 12/29/2022]
Abstract
The macroalgae-derived polysaccharides' biological potential has been explored due to their attractive intrinsic properties such as biocompatibility, biodegradability, and their ability to conjugate with other compounds. In particular, in the drug delivery systems field, the anionic macroalgae polysaccharides have been combined with cationic compounds through ionotropic gelation and/or bulk mixing. However, these techniques did not assure reproducibility, and the stability of nanoparticles is undesired. To overcome these limitations, herein, the polysaccharide extracted from Osmundea sp. was used to produce nanoparticles through the flash nanocomplexation technique. This approach rapidly mixed the negative charge of macroalgae polysaccharide with a positive chitosan charge on a millisecond timescale. Further, diclofenac (an anti-inflammatory drug) was also incorporated into complex nanoparticles. Overall, the gathered data showed that hydrodynamic diameter nanoparticles values lower than 100 nm, presenting a narrow size distribution and stability. Also, the diclofenac exhibited a targeted and sustained release profile in simulating inflammatory conditions. Likewise, the nanoparticles showed excellent biological properties, evidencing their suitability to be used to treat inflammatory skin diseases.
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Affiliation(s)
- Sónia P Miguel
- CPIRN-UDI/IPG, Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação para o Desenvolvimento do Interior do Instituto Politécnico da Guarda, Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal.
| | - Jorge Loureiro
- CPIRN-UDI/IPG, Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação para o Desenvolvimento do Interior do Instituto Politécnico da Guarda, Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
| | - Maximiano P Ribeiro
- CPIRN-UDI/IPG, Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação para o Desenvolvimento do Interior do Instituto Politécnico da Guarda, Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-UDI/IPG, Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação para o Desenvolvimento do Interior do Instituto Politécnico da Guarda, Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal.
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Rodrigues DA, Miguel SP, Loureiro J, Ribeiro M, Roque F, Coutinho P. Oromucosal Alginate Films with Zein Nanoparticles as a Novel Delivery System for Digoxin. Pharmaceutics 2021; 13:pharmaceutics13122030. [PMID: 34959312 PMCID: PMC8706652 DOI: 10.3390/pharmaceutics13122030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/04/2021] [Revised: 11/16/2021] [Accepted: 11/25/2021] [Indexed: 12/30/2022] Open
Abstract
Digoxin is a hydrophobic drug used for the treatment of heart failure that possesses a narrow therapeutic index, which raises safety concerns for toxicity. This is of utmost relevance in specific populations, such as the elderly. This study aimed to demonstrate the potential of the sodium alginate films as buccal drug delivery system containing zein nanoparticles incorporated with digoxin to reduce the number of doses, facilitating the administration with a quick onset of action. The film was prepared using the solvent casting method, whereas nanoparticles by the nanoprecipitation method. The nanoparticles incorporated with digoxin (0.25 mg/mL) exhibited a mean size of 87.20 ± 0.88 nm, a polydispersity index of 0.23 ± 0.00, and a zeta potential of 21.23 ± 0.07 mV. Digoxin was successfully encapsulated into zein nanoparticles with an encapsulation efficiency of 91% (±0.00). Films with/without glycerol and with different concentrations of ethanol were produced. The sodium alginate (SA) films with 10% ethanol demonstrated good performance for swelling (maximum of 1474%) and mechanical properties, with a mean tensile strength of 0.40 ± 0.04 MPa and an elongation at break of 27.85% (±0.58), compatible with drug delivery application into the buccal mucosa. The current study suggests that SA films with digoxin-loaded zein nanoparticles can be an effective alternative to the dosage forms available on the market for digoxin administration.
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Affiliation(s)
- Daniela A. Rodrigues
- Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Polytechnic Institute of Guarda (CPIRN-UDI/IPG), Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (D.A.R.); (S.P.M.); (J.L.); (M.R.); (F.R.)
| | - Sónia P. Miguel
- Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Polytechnic Institute of Guarda (CPIRN-UDI/IPG), Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (D.A.R.); (S.P.M.); (J.L.); (M.R.); (F.R.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Jorge Loureiro
- Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Polytechnic Institute of Guarda (CPIRN-UDI/IPG), Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (D.A.R.); (S.P.M.); (J.L.); (M.R.); (F.R.)
| | - Maximiano Ribeiro
- Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Polytechnic Institute of Guarda (CPIRN-UDI/IPG), Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (D.A.R.); (S.P.M.); (J.L.); (M.R.); (F.R.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Fátima Roque
- Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Polytechnic Institute of Guarda (CPIRN-UDI/IPG), Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (D.A.R.); (S.P.M.); (J.L.); (M.R.); (F.R.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Polytechnic Institute of Guarda (CPIRN-UDI/IPG), Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal; (D.A.R.); (S.P.M.); (J.L.); (M.R.); (F.R.)
- Health Sciences Research Centre, University of Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal
- Correspondence: ; Tel.: +351-965544187
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Cernadas T, Santos M, Miguel SP, Correia IJ, Alves P, Ferreira P. Photocurable Polymeric Blends for Surgical Application. Materials (Basel) 2020; 13:ma13245681. [PMID: 33322771 PMCID: PMC7763592 DOI: 10.3390/ma13245681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/22/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 12/15/2022]
Abstract
The preparation of photocrosslinkable bioadhesives synthesized from oligomers of lactic acid and polycaprolactone (PCL), both functionalized with 2-isocyanoethyl acrylate (AOI), were studied. The obtained modified macromers of LA-AOI (mLA) and PCL-AOI (mCL) were chemically characterized by 1H NMR and used to formulate polymeric blends with different mass proportions, 1:1, 1:2 and 2:1, respectively. Subsequently, the produced blends were crosslinked, considering two UV irradiation times: 30 and 120 s. After their production, the thermal and mechanical properties of bioadhesives were assessed, where upon the rheology, gel content, hydrolytic degradation and dynamic contact angles were determined. Furthermore, the cytotoxic profile of bioadhesives was evaluated in contact with human dermal fibroblasts cells, whereas their antibacterial effect was studied monitoring Escherichia coli and S. aureus growth. Overall, flexible and resistant films were obtained, presenting promising features to be used as surgical bioadhesives.
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Affiliation(s)
- Teresa Cernadas
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal; (T.C.); (M.S.); (I.J.C.); (P.A.)
| | - Marta Santos
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal; (T.C.); (M.S.); (I.J.C.); (P.A.)
| | - Sónia P. Miguel
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, P-6200 506 Covilhã, Portugal;
- CPIRN-IPG, Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, 6300-559 Guarda, Portugal
| | - Ilídio J. Correia
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal; (T.C.); (M.S.); (I.J.C.); (P.A.)
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, P-6200 506 Covilhã, Portugal;
| | - Patrícia Alves
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal; (T.C.); (M.S.); (I.J.C.); (P.A.)
| | - Paula Ferreira
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal; (T.C.); (M.S.); (I.J.C.); (P.A.)
- Correspondence:
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Lima-Sousa R, de Melo-Diogo D, Alves CG, Cabral CS, Miguel SP, Mendonça AG, Correia IJ. Injectable in situ forming thermo-responsive graphene based hydrogels for cancer chemo-photothermal therapy and NIR light-enhanced antibacterial applications. Materials Science and Engineering: C 2020; 117:111294. [DOI: 10.1016/j.msec.2020.111294] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 07/06/2020] [Accepted: 07/21/2020] [Indexed: 02/01/2023]
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Graça MFP, Miguel SP, Cabral CSD, Correia IJ. Hyaluronic acid-Based wound dressings: A review. Carbohydr Polym 2020; 241:116364. [PMID: 32507198 DOI: 10.1016/j.carbpol.2020.116364] [Citation(s) in RCA: 306] [Impact Index Per Article: 76.5] [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: 02/06/2020] [Revised: 04/09/2020] [Accepted: 04/22/2020] [Indexed: 01/09/2023]
Abstract
Hyaluronic acid (HA), a non-sulfated glycosaminoglycan (GAG), is a major component of skin extracellular matrix (ECM) and it is involved in the inflammatory response, angiogenesis, and tissue regeneration process. Due to the intrinsic properties of HA (such as biocompatibility, biodegradability and hydrophilic character), it has been used to produce different wound dressings, namely sponges, films, hydrogels, and electrospun membranes. Herein, an overview of the different HA-based wound dressings that have been produced so far is provided as well as the future directions regarding the strategies aimed to improve the mechanical stability of HA-based wound dressings, along with the incorporation of biomolecules intended to ameliorate their biological performance during the healing process.
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Affiliation(s)
- Mariana F P Graça
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Sónia P Miguel
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal; CPIRN-IPG- Centro de Potencial e Inovação de Recursos Naturais- Instituto Politécnico da Guarda, Av. Dr. Francisco de Sá Carneiro, 6300-559, Guarda, Portugal
| | - Cátia S D Cabral
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal; CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal.
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Jacinto TA, Rodrigues CF, Moreira AF, Miguel SP, Costa EC, Ferreira P, Correia IJ. Hyaluronic acid and vitamin E polyethylene glycol succinate functionalized gold-core silica shell nanorods for cancer targeted photothermal therapy. Colloids Surf B Biointerfaces 2020; 188:110778. [DOI: 10.1016/j.colsurfb.2020.110778] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/13/2019] [Accepted: 01/04/2020] [Indexed: 01/10/2023]
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Alves A, Miguel SP, Araujo AR, de Jesús Valle MJ, Sánchez Navarro A, Correia IJ, Ribeiro MP, Coutinho P. Xanthan Gum-Konjac Glucomannan Blend Hydrogel for Wound Healing. Polymers (Basel) 2020; 12:E99. [PMID: 31947937 PMCID: PMC7023620 DOI: 10.3390/polym12010099] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/11/2019] [Accepted: 12/21/2019] [Indexed: 02/08/2023] Open
Abstract
Hydrogels are considered to be the most ideal materials for the production of wound dressings since they display a three-dimensional structure that mimics the native extracellular matrix of skin as well as a high-water content, which confers a moist environment at the wound site. Until now, different polymers have been used, alone or blended, for the production of hydrogels aimed for this biomedical application. From the best of our knowledge, the application of a xanthan gum-konjac glucomannan blend has not been used for the production of wound dressings. Herein, a thermo-reversible hydrogel composed of xanthan gum-konjac glucomannan (at different concentrations (1% and 2% w/v) and ratios (50/50 and 60/40)) was produced and characterized. The obtained data emphasize the excellent physicochemical and biological properties of the produced hydrogels, which are suitable for their future application as wound dressings.
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Affiliation(s)
- Andreia Alves
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
| | - Sónia P. Miguel
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - André R.T.S. Araujo
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, Porto University, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - María José de Jesús Valle
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
- Institute of Biopharmaceutical Sciences of University of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Amparo Sánchez Navarro
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
- Institute of Biopharmaceutical Sciences of University of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Ilídio J. Correia
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal
| | - Maximiano P. Ribeiro
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
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Moreira AF, Rodrigues CF, Jacinto TA, Miguel SP, Costa EC, Correia IJ. Microneedle-based delivery devices for cancer therapy: A review. Pharmacol Res 2019; 148:104438. [DOI: 10.1016/j.phrs.2019.104438] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 12/28/2022]
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Alves P, Santos M, Mendes S, P Miguel S, D de Sá K, S D Cabral C, J Correia I, Ferreira P. Photocrosslinkable Nanofibrous Asymmetric Membrane Designed for Wound Dressing. Polymers (Basel) 2019; 11:E653. [PMID: 30974796 PMCID: PMC6523099 DOI: 10.3390/polym11040653] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/21/2019] [Accepted: 04/08/2019] [Indexed: 12/17/2022] Open
Abstract
Recently, the biomedical scientists who are working in the skin regeneration area have proposed asymmetric membranes as ideal wound dressings, since they are able to reproduce both layers of skin and improve the healing process as well as make it less painful. Herein, an electrospinning technique was used to produce new asymmetric membranes. The protective layer was composed of a blending solution between polycaprolactone and polylactic acid, whereas the underlying layer was comprised of methacrylated gelatin and chitosan. The chemical/physical properties, the in vitro hemo- and biocompatibility of the nanofibrous membranes were evaluated. The results obtained reveal that the produced membranes exhibited a wettability able to provide a moist environment at wound site. Moreover, the membranes' hemocompatibility and fibroblast cell adhesion, spreading and proliferation at the surface of the membranes were also noticed in the in vitro assays. Such results highlight the suitability of these asymmetric membranes for wound dressing applications.
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Affiliation(s)
- Patrícia Alves
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
| | - Marta Santos
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
| | - Sabrina Mendes
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
| | - Sónia P Miguel
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Kevin D de Sá
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Cátia S D Cabral
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Ilídio J Correia
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Paula Ferreira
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
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Miguel SP, Moreira AF, Correia IJ. Chitosan based-asymmetric membranes for wound healing: A review. Int J Biol Macromol 2019; 127:460-475. [PMID: 30660567 DOI: 10.1016/j.ijbiomac.2019.01.072] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [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: 12/01/2018] [Revised: 01/14/2019] [Accepted: 01/16/2019] [Indexed: 01/08/2023]
Abstract
The wound healing process involves highly complex and dynamic events that allow the re-establishment of skin's structural integrity. To further improve or to overcome the drawbacks associated with this process, researchers have been focused on the development of new therapeutics. Among them, asymmetric membranes are currently one of the most promising approaches to be used in wound healing due to its structural similarities with the epidermal and dermal layers of the native skin. The outer layer of asymmetric membranes provides a barrier that protects the wound from external damages (e.g. microorganisms and chemical agents), whereas the interior porous layer acts as template for supporting cell adhesion, migration and proliferation. Among the different materials used to produce these distinct layers, the chitosan arises as one of the preeminent materials due to its inherent biocompatibility, antibacterial, hemostatic, and healing properties. Therefore, in this review, it is provided an overview of the different chitosan-based asymmetric membranes developed for wound dressing applications. Further, the chitosan modifications to enhance its bioactivity as well as the asymmetric membranes general properties and production techniques are also described.
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Affiliation(s)
- Sónia P Miguel
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - André F Moreira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal.
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Miguel SP, Simões D, Moreira AF, Sequeira RS, Correia IJ. Production and characterization of electrospun silk fibroin based asymmetric membranes for wound dressing applications. Int J Biol Macromol 2019; 121:524-535. [DOI: 10.1016/j.ijbiomac.2018.10.041] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/10/2018] [Accepted: 10/10/2018] [Indexed: 01/15/2023]
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Simões D, Miguel SP, Correia IJ. Biofunctionalization of electrospun poly(caprolactone) fibers with Maillard reaction products for wound dressing applications. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.07.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Sousa MP, Neto AI, Correia TR, Miguel SP, Matsusaki M, Correia IJ, Mano JF. Bioinspired multilayer membranes as potential adhesive patches for skin wound healing. Biomater Sci 2018; 6:1962-1975. [PMID: 29850674 PMCID: PMC6420149 DOI: 10.1039/c8bm00319j] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bioinspired and adhesive multilayer membranes are produced using the layer-by-layer (LbL) assembly of chitosan (CHT), alginate (ALG) and hyaluronic acid modified with dopamine (HA-DN). Freestanding multilayer membranes without DN are also produced as a control. The success of the synthesis of HA-DN was confirmed using UV-visible spectroscopy. Scanning electron microscopy images indicate that the surface of the DN-containing membranes is more porous than the control ones; they also present a higher average thickness value for the same number of CHT/ALG/CHT/HA(-DN) tetralayers (n = 100). Also, water uptake, mechanical strength and adhesion are enhanced with the introduction of DN moieties along the nano-layers. Besides, human dermal fibroblast viability, enhanced adhesion and proliferation were confirmed by immunofluorescence assays and by measuring both the metabolic activity and DNA content. Moreover, in vivo assays with such kinds of DN-containing multilayer membranes were performed; the application of these membranes in the treatment of dermal wounds induced in Wistar rats results in the highest decrease of inflammation of rat skin, compared with the control conditions. Overall, this investigation suggests that these mussel-inspired freestanding multilayer membranes may enhance either their mechanical performance or cellular adhesion and proliferation, leading to an improved wound healing process, being a promising material to restore the structural and functional properties of wounded skin.
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Affiliation(s)
- Maria P Sousa
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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Simões D, Miguel SP, Ribeiro MP, Coutinho P, Mendonça AG, Correia IJ. Recent advances on antimicrobial wound dressing: A review. Eur J Pharm Biopharm 2018; 127:130-141. [DOI: 10.1016/j.ejpb.2018.02.022] [Citation(s) in RCA: 482] [Impact Index Per Article: 80.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/07/2018] [Accepted: 02/16/2018] [Indexed: 12/15/2022]
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Miguel SP, Figueira DR, Simões D, Ribeiro MP, Coutinho P, Ferreira P, Correia IJ. Electrospun polymeric nanofibres as wound dressings: A review. Colloids Surf B Biointerfaces 2018; 169:60-71. [PMID: 29747031 DOI: 10.1016/j.colsurfb.2018.05.011] [Citation(s) in RCA: 177] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 12/19/2022]
Abstract
Skin wounds have significant morbidity and mortality rates associated. This is explained by the limited effectiveness of the currently available treatments, which in some cases do not allow the reestablishment of the structure and functions of the damaged skin, leading to wound infection and dehydration. These drawbacks may have an impact on the healing process and ultimately prompt patients' death. For this reason, researchers are currently developing new wound dressings that enhance skin regeneration. Among them, electrospun polymeric nanofibres have been regarded as promising tools for improving skin regeneration due to their structural similarity with the extracellular matrix of normal skin, capacity to promote cell growth and proliferation and bactericidal activity as well as suitability to deliver bioactive molecules to the wound site. In this review, an overview of the recent studies concerning the production and evaluation of electrospun polymeric nanofibrous membranes for skin regenerative purposes is provided. Moreover, the current challenges and future perspectives of electrospun nanofibrous membranes suitable for this biomedical application are highlighted.
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Affiliation(s)
- Sónia P Miguel
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior,Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Daniela R Figueira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior,Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Déborah Simões
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior,Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Maximiano P Ribeiro
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior,Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; UDI-IPG- Unidade de Investigação para o Desenvolvimento do Interior, Instituto Politécnico da Guarda, 6300-559 Guarda, Portugal
| | - Paula Coutinho
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior,Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; UDI-IPG- Unidade de Investigação para o Desenvolvimento do Interior, Instituto Politécnico da Guarda, 6300-559 Guarda, Portugal
| | - Paula Ferreira
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior,Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal.
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Miguel SP, Ribeiro MP, Coutinho P, Correia IJ. Electrospun Polycaprolactone/Aloe Vera_Chitosan Nanofibrous Asymmetric Membranes Aimed for Wound Healing Applications. Polymers (Basel) 2017; 9:E183. [PMID: 30970863 PMCID: PMC6432098 DOI: 10.3390/polym9050183] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [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: 04/03/2017] [Revised: 05/06/2017] [Accepted: 05/19/2017] [Indexed: 12/30/2022] Open
Abstract
Today, none of the wound dressings available on the market is fully capable of reproducing all the features of native skin. Herein, an asymmetric electrospun membrane was produced to mimic both layers of skin. It comprises a top dense layer (manufactured with polycaprolactone) that was designed to provide mechanical support to the wound and a bottom porous layer (composed of chitosan and Aloe Vera) aimed to improve the bactericidal activity of the membrane and ultimately the healing process. The results obtained revealed that the produced asymmetric membranes displayed a porosity, wettability, as well as mechanical properties similar to those presented by the native skin. Fibroblast cells were able to adhere, spread, and proliferate on the surface of the membranes and the intrinsic structure of the two layers of the membrane is capable of avoiding the invasion of microorganisms while conferring bioactive properties. Such data reveals the potential of these asymmetric membranes, in the near future, to be applied as wound dressings.
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Affiliation(s)
- Sónia P Miguel
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
| | - Maximiano P Ribeiro
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
- UDI-IPG-Unidade de Investigação para o Desenvolvimento do Interior, Instituto Politécnico da Guarda, 6300-559 Guarda, Portugal.
| | - Paula Coutinho
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
- UDI-IPG-Unidade de Investigação para o Desenvolvimento do Interior, Instituto Politécnico da Guarda, 6300-559 Guarda, Portugal.
| | - Ilídio J Correia
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
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De Sá KD, Figueira DR, Miguel SP, Correia TR, Silva AP, Correia IJ. 3D scaffolds coated with nanofibers displaying bactericidal activity for bone tissue applications. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1236338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kevin D. De Sá
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Daniela R. Figueira
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Sónia P. Miguel
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Tiago R. Correia
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Abílio P. Silva
- Centro de Ciência e Tecnologia Aeroespaciais, Universidade da Beira Interior, Covilhã, Portugal
| | - Ilídio J. Correia
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
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Silva AS, Sousa AM, Cabral RP, Silva MC, Costa C, Miguel SP, Bonifácio VD, Casimiro T, Correia IJ, Aguiar-Ricardo A. Aerosolizable gold nano-in-micro dry powder formulations for theragnosis and lung delivery. Int J Pharm 2017; 519:240-249. [DOI: 10.1016/j.ijpharm.2017.01.032] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 01/15/2017] [Accepted: 01/16/2017] [Indexed: 12/19/2022]
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Figueira DR, Miguel SP, de Sá KD, Correia IJ. Production and characterization of polycaprolactone- hyaluronic acid/chitosan- zein electrospun bilayer nanofibrous membrane for tissue regeneration. Int J Biol Macromol 2016; 93:1100-1110. [DOI: 10.1016/j.ijbiomac.2016.09.080] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/08/2016] [Accepted: 09/20/2016] [Indexed: 12/25/2022]
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Correia TR, Figueira DR, de Sá KD, Miguel SP, Fradique RG, Mendonça AG, Correia IJ. 3D Printed scaffolds with bactericidal activity aimed for bone tissue regeneration. Int J Biol Macromol 2016; 93:1432-1445. [PMID: 27267575 DOI: 10.1016/j.ijbiomac.2016.06.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 12/23/2015] [Revised: 05/30/2016] [Accepted: 06/02/2016] [Indexed: 10/21/2022]
Abstract
Nowadays, the incidence of bone disorders has steeply ascended and it is expected to double in the next decade, especially due to the ageing of the worldwide population. Bone defects and fractures lead to reduced patient's quality of life. Autografts, allografts and xenografts have been used to overcome different types of bone injuries, although limited availability, immune rejection or implant failure demand the development of new bone replacements. Moreover, the bacterial colonization of bone substitutes is the main cause of implant rejection. To vanquish these drawbacks, researchers from tissue engineering area are currently using computer-aided design models or medical data to produce 3D scaffolds by Rapid Prototyping (RP). Herein, Tricalcium phosphate (TCP)/Sodium Alginate (SA) scaffolds were produced using RP and subsequently functionalized with silver nanoparticles (AgNPs) through two different incorporation methods. The obtained results revealed that the composite scaffolds produced by direct incorporation of AgNPs are the most suitable for being used in bone tissue regeneration since they present appropriate mechanical properties, biocompatibility and bactericidal activity.
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Affiliation(s)
- Tiago R Correia
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Daniela R Figueira
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Kevin D de Sá
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Sónia P Miguel
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Ricardo G Fradique
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - António G Mendonça
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; Departamento de Química, Universidade da Beira Interior, R. Marquês d'Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
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Fradique R, Correia TR, Miguel SP, de Sá KD, Figueira DR, Mendonça AG, Correia IJ. Production of new 3D scaffolds for bone tissue regeneration by rapid prototyping. J Mater Sci Mater Med 2016; 27:69. [PMID: 26886817 DOI: 10.1007/s10856-016-5681-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 01/27/2016] [Indexed: 06/05/2023]
Abstract
The incidence of bone disorders, whether due to trauma or pathology, has been trending upward with the aging of the worldwide population. The currently available treatments for bone injuries are rather limited, involving mainly bone grafts and implants. A particularly promising approach for bone regeneration uses rapid prototyping (RP) technologies to produce 3D scaffolds with highly controlled structure and orientation, based on computer-aided design models or medical data. Herein, tricalcium phosphate (TCP)/alginate scaffolds were produced using RP and subsequently their physicochemical, mechanical and biological properties were characterized. The results showed that 60/40 of TCP and alginate formulation was able to match the compression and present a similar Young modulus to that of trabecular bone while presenting an adequate biocompatibility. Moreover, the biomineralization ability, roughness and macro and microporosity of scaffolds allowed cell anchoring and proliferation at their surface, as well as cell migration to its interior, processes that are fundamental for osteointegration and bone regeneration.
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Affiliation(s)
- R Fradique
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - T R Correia
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - S P Miguel
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - K D de Sá
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - D R Figueira
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - A G Mendonça
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, R. Marquês d'Ávila e Bolama, 6201-001, Covilhã, Portugal
| | - I J Correia
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal.
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Silva AS, Silva MC, Miguel SP, Bonifácio VDB, Correia IJ, Aguiar-Ricardo A. Nanogold POxylation: towards always-on fluorescent lung cancer targeting. RSC Adv 2016. [DOI: 10.1039/c6ra00532b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Gold nanoparticles (GNPs) were POxylated with fluorescent oligomers, synthesized in supercritical CO2, and conjugated with a laminin fragment. Particle design strongly impacts on probes uptake by the A549 cell line.
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Affiliation(s)
- A. Sofia Silva
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- Campus de Caparica
| | - Marta C. Silva
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- Campus de Caparica
| | - Sónia P. Miguel
- CICS-UBI
- Health Sciences Research Center
- Faculdade de Ciências da Saúde
- Universidade da Beira Interior
- 6200-506 Covilhã
| | - Vasco D. B. Bonifácio
- Centro de Química-Física Molecular and Institute of Nanosciences and Nanotechnology
- Instituto Superior Técnico
- 1049-001 Lisboa
- Portugal
| | - Ilídio J. Correia
- CICS-UBI
- Health Sciences Research Center
- Faculdade de Ciências da Saúde
- Universidade da Beira Interior
- 6200-506 Covilhã
| | - Ana Aguiar-Ricardo
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- Campus de Caparica
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Saraiva SM, Miguel SP, Ribeiro MP, Coutinho P, Correia IJ. Synthesis and characterization of a photocrosslinkable chitosan–gelatin hydrogel aimed for tissue regeneration. RSC Adv 2015. [DOI: 10.1039/c5ra10638a] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the area of regenerative medicine different approaches have been studied to restore the native structure of damaged tissues. Herein, the suitability of a photocrosslinkable hydrogel for tissue engineering applications was studied.
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Affiliation(s)
- Sofia M. Saraiva
- CICS-UBI – Health Sciences Research Centre
- University of Beira Interior
- 6200-506 Covilhã
- Portugal
| | - Sónia P. Miguel
- CICS-UBI – Health Sciences Research Centre
- University of Beira Interior
- 6200-506 Covilhã
- Portugal
| | - Maximiano P. Ribeiro
- CICS-UBI – Health Sciences Research Centre
- University of Beira Interior
- 6200-506 Covilhã
- Portugal
- UDI-IPG
| | - Paula Coutinho
- CICS-UBI – Health Sciences Research Centre
- University of Beira Interior
- 6200-506 Covilhã
- Portugal
- UDI-IPG
| | - Ilídio J. Correia
- CICS-UBI – Health Sciences Research Centre
- University of Beira Interior
- 6200-506 Covilhã
- Portugal
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Oliveira MB, Ribeiro MP, Miguel SP, Neto AI, Coutinho P, Correia IJ, Mano JF. In vivo high-content evaluation of three-dimensional scaffolds biocompatibility. Tissue Eng Part C Methods 2014; 20:851-64. [PMID: 24568682 PMCID: PMC4229707 DOI: 10.1089/ten.tec.2013.0738] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 02/18/2014] [Indexed: 11/12/2022] Open
Abstract
While developing tissue engineering strategies, inflammatory response caused by biomaterials is an unavoidable aspect to be taken into consideration, as it may be an early limiting step of tissue regeneration approaches. We demonstrate the application of flat and flexible films exhibiting patterned high-contrast wettability regions as implantable platforms for the high-content in vivo study of inflammatory response caused by biomaterials. Screening biomaterials by using high-throughput platforms is a powerful method to detect hit spots with promising properties and to exclude uninteresting conditions for targeted applications. High-content analysis of biomaterials has been mostly restricted to in vitro tests where crucial information is lost, as in vivo environment is highly complex. Conventional biomaterials implantation requires the use of high numbers of animals, leading to ethical questions and costly experimentation. Inflammatory response of biomaterials has also been highly neglected in high-throughput studies. We designed an array of 36 combinations of biomaterials based on an initial library of four polysaccharides. Biomaterials were dispensed onto biomimetic superhydrophobic platforms with wettable regions and processed as freeze-dried three-dimensional scaffolds with a high control of the array configuration. These chips were afterward implanted subcutaneously in Wistar rats. Lymphocyte recruitment and activated macrophages were studied on-chip, by performing immunocytochemistry in the miniaturized biomaterials after 24 h and 7 days of implantation. Histological cuts of the surrounding tissue of the implants were also analyzed. Localized and independent inflammatory responses were detected. The integration of these data with control data proved that these chips are robust platforms for the rapid screening of early-stage in vivo biomaterials' response.
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Affiliation(s)
- Mariana B. Oliveira
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Maximiano P. Ribeiro
- CICS-UBI—Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
- UDI-IPG—Research Unit for Inland Development, Polytechnic Institute of Guarda, Guarda, Portugal
| | - Sónia P. Miguel
- CICS-UBI—Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Ana I. Neto
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Paula Coutinho
- UDI-IPG—Research Unit for Inland Development, Polytechnic Institute of Guarda, Guarda, Portugal
| | - Ilídio J. Correia
- CICS-UBI—Health Sciences Research Center, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - João F. Mano
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Miguel SP, Ribeiro MP, Brancal H, Coutinho P, Correia IJ. Thermoresponsive chitosan–agarose hydrogel for skin regeneration. Carbohydr Polym 2014; 111:366-73. [DOI: 10.1016/j.carbpol.2014.04.093] [Citation(s) in RCA: 162] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 04/24/2014] [Accepted: 04/27/2014] [Indexed: 12/17/2022]
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