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Alcântara ACS, González-Alfaro Y, Darder M, Ruiz-Hitzky E, Aranda P. Magnetite-sepiolite nanoarchitectonics for improving zein-based bionanocomposite foams. Dalton Trans 2023; 52:16951-16962. [PMID: 37930107 DOI: 10.1039/d3dt02845c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Magnetic nanoarchitectures have been used to introduce multifunctionality in biopolymeric matrices. Bionanocomposite foams based on the corn protein zein were prepared for the first time using the hydrophobic properties of zein in a sequential treatment consisting of the removal of ethanol-soluble fractions, followed by the water swelling of the remaining phase and a further freeze-drying process. When this protocol is applied to zein pellets, they can be consolidated as porous monoliths. Moreover, it is possible to incorporate diverse types of inorganic nanoparticles in the starting pellet to produce the bionanocomposite foams. In particular, the preparation of superparamagnetic foams has been explored using two approaches: the direct incorporation of magnetite nanoparticles in a ferrofluid by impregnation in the foams, and the application of the foaming process to mixtures of zein with magnetite nanoparticles alone or previously assembled into sepiolite clay fibers. The first methodology leads to the production of inhomogeneous foams, while the use of magnetite nanoparticles and better Fe3O4-sepiolite nanoarchitectured materials as fillers results in more homogeneous materials with improved water stability and mechanical properties, offering superparamagnetic behavior. The resulting multifunctional foams have been tested in adsorption processes using the herbicide 4-chloro-2-methylphenoxyacetic acid as a model pollutant, confirming their potential utility in decontamination applications in open waters as they can be easily recovered from the aqueous medium using a magnet.
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Affiliation(s)
- Ana C S Alcântara
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, c/Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
| | - Yorexis González-Alfaro
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, c/Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
| | - Margarita Darder
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, c/Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
| | - Eduardo Ruiz-Hitzky
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, c/Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
| | - Pilar Aranda
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, c/Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
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Liu Z, Lv Y, Zheng G, Wu W, Che X. Chitosan/Polylactic Acid Nanofibers Containing Astragaloside IV as a New Biodegradable Wound Dressing for Wound Healing. AAPS PharmSciTech 2023; 24:202. [PMID: 37783916 DOI: 10.1208/s12249-023-02650-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/05/2023] [Indexed: 10/04/2023] Open
Abstract
The ideal wound dressing should adequately protect the wound from bacterial infection and provide a suitable healing environment for the wound. Thus, we prepared a biodegradable functional nanofiber dressing with good antibacterial and biocompatibility by electrospinning technology. The average diameter of the dressing was 354 ± 185 nm, and the porosity was 93.27%. Scanning electron microscopy (SEM) showed that the dressing was smooth without beading. It was also characterized by Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The wettability and water vapor permeability of the dressing were tested; the results showed that the dressing had good wettability and permeability. The ability of drug release indicates that continuous release over a period of time is beneficial to wound healing. Finally, the antibacterial effect and in vivo pharmacodynamic evaluation of AS/CS/PLA nanofiber dressing were studied; the result showed that it had significant antibacterial activity and the ability to promote wound healing.
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Affiliation(s)
- Zemei Liu
- Guizhou University of Traditional Chinese Medicine, Guiyang, 550000, Guizhou, China
| | - Yuanju Lv
- Guizhou University of Traditional Chinese Medicine, Guiyang, 550000, Guizhou, China
| | - Guangyan Zheng
- Guizhou University of Traditional Chinese Medicine, Guiyang, 550000, Guizhou, China
| | - Wenli Wu
- Guizhou University of Traditional Chinese Medicine, Guiyang, 550000, Guizhou, China
| | - Xin Che
- Guizhou University of Traditional Chinese Medicine, Guiyang, 550000, Guizhou, China.
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Wu J, Shaidani S, Theodossiou SK, Hartzell EJ, Kaplan DL. Localized, on-demand, sustained drug delivery from biopolymer-based materials. Expert Opin Drug Deliv 2022; 19:1317-1335. [PMID: 35930000 PMCID: PMC9617770 DOI: 10.1080/17425247.2022.2110582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/03/2022] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Local drug delivery facilitiates higher concentrations of drug molecules at or near the treatment site to enhance treatment efficiency and reduce drug toxicity and other systemic side effects. However, local drug delivery systems face challenges in terms of encapsulation, delivery, and controlled release of therapeutics. AREAS COVERED We provide an overview of naturally derived biopolymer-based drug delivery systems for localized, sustained, and on-demand treatment. We introduce the advantages and limitations of these systems for drug encapsulation, delivery, and local release, as well as recent applications. EXPERT OPINION Naturally derived biopolymers like cellulose, silk fibroin, chitosan, alginate, hyaluronic acid, and gelatin are good candidates for localized drug delivery because they are readily chemically modified, biocompatible, biodegradable (with the generation of metabolically compatible degradation products), and can be processed in aqueous and ambient environments to maintain the bioactivity of various therapeutics. The tradeoff between the effective treatment dosage and the response by local healthy tissue should be balanced during the design of these delivery systems. Future directions will be focused on strategies to design tunable and controlled biodegradation rates, as well as to explore commercial utility in substituting biopolymer-based systems for currently utilized synthetic polymers for implants for drug delivery.
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Affiliation(s)
- Junqi Wu
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, USA, 02155
| | - Sawnaz Shaidani
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, USA, 02155
| | - Sophia K. Theodossiou
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, USA, 02155
| | - Emily J. Hartzell
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, USA, 02155
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, USA, 02155
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Torrejon VM, Song J, Yu Z, Hang S. Gelatin-based cellular solids: Fabrication, structure and properties. J CELL PLAST 2022. [DOI: 10.1177/0021955x221087602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Although most cellular polymers are made from thermoplastics using different foaming technologies, gelatin and many other natural polymers can form hydrogels and convert them to cellular solids using various techniques, many of which differ from traditional plastic foaming, and so does their resulting structures. Cellular solids from natural hydrogels are porous materials that often exhibit a combination of desirable properties, including high specific surface area, biochemical activity, as well as thermal and acoustic insulation properties. Among natural hydrogels, gelatin-based porous materials are widely explored due to their availability, biocompatibility, biodegradability and relatively low cost. In addition, gelatin-based cellular solids have outstanding properties and are currently subject to increasing scientific research due to their potential in many applications, such as biocompatible cellular materials or biofoams to facilitate waste treatment. This article aims at providing a comprehensive review of gelatin cellular solids processing and their processing-properties-structure relationship. The fabrication techniques covered include aerogels production, mechanical foaming, blowing agents use, 3D printing, electrospinning and particle leaching methods. It is hoped that the assessment of their characteristics provides compiled information and guidance for selecting techniques and optimization of processing conditions to control material structure and properties to meet the needs of the finished products.
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Affiliation(s)
- Virginia Martin Torrejon
- Media and Communication School, Shenzhen Polytechnic, Shenzhen, China
- Department of Applied Chemistry, School of Science, Xi’an Jiaotong University, Xi’an, China
- Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Jim Song
- School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, China
| | - Zhang Yu
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an, China
| | - Song Hang
- School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, China
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Coppola D, Oliviero M, Vitale GA, Lauritano C, D’Ambra I, Iannace S, de Pascale D. Marine Collagen from Alternative and Sustainable Sources: Extraction, Processing and Applications. Mar Drugs 2020; 18:E214. [PMID: 32326635 PMCID: PMC7230273 DOI: 10.3390/md18040214] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/11/2020] [Accepted: 04/13/2020] [Indexed: 12/28/2022] Open
Abstract
Due to its unique properties, collagen is used in the growing fields of pharmaceutical and biomedical devices, as well as in the fields of nutraceuticals, cosmeceuticals, food and beverages. Collagen also represents a valid resource for bioplastics and biomaterials, to be used in the emerging health sectors. Recently, marine organisms have been considered as promising sources of collagen, because they do not harbor transmissible disease. In particular, fish biomass as well as by-catch organisms, such as undersized fish, jellyfish, sharks, starfish, and sponges, possess a very high collagen content. The use of discarded and underused biomass could contribute to the development of a sustainable process for collagen extraction, with a significantly reduced environmental impact. This addresses the European zero-waste strategy, which supports all three generally accepted goals of sustainability: sustainable economic well-being, environmental protection, and social well-being. A zero-waste strategy would use far fewer new raw materials and send no waste materials to landfills. In this review, we present an overview of the studies carried out on collagen obtained from by-catch organisms and fish wastes. Additionally, we discuss novel technologies based on thermoplastic processes that could be applied, likewise, as marine collagen treatment.
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Affiliation(s)
- Daniela Coppola
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (C.L.)
- Institute of Biosciences and BioResources (IBBR), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Maria Oliviero
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le E. Fermi 1, Portici, 80055 Naples, Italy; (M.O.); (S.I.)
| | - Giovanni Andrea Vitale
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy;
| | - Chiara Lauritano
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (C.L.)
| | - Isabella D’Ambra
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
| | - Salvatore Iannace
- Institute of Polymers, Composites and Biomaterials, National Research Council, P.le E. Fermi 1, Portici, 80055 Naples, Italy; (M.O.); (S.I.)
| | - Donatella de Pascale
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (C.L.)
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy;
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Chakravarty P, Famili A, Nagapudi K, Al-Sayah MA. Using Supercritical Fluid Technology as a Green Alternative During the Preparation of Drug Delivery Systems. Pharmaceutics 2019; 11:E629. [PMID: 31775292 PMCID: PMC6956038 DOI: 10.3390/pharmaceutics11120629] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/13/2019] [Accepted: 11/18/2019] [Indexed: 12/17/2022] Open
Abstract
Micro- and nano-carrier formulations have been developed as drug delivery systems for active pharmaceutical ingredients (APIs) that suffer from poor physico-chemical, pharmacokinetic, and pharmacodynamic properties. Encapsulating the APIs in such systems can help improve their stability by protecting them from harsh conditions such as light, oxygen, temperature, pH, enzymes, and others. Consequently, the API's dissolution rate and bioavailability are tremendously improved. Conventional techniques used in the production of these drug carrier formulations have several drawbacks, including thermal and chemical stability of the APIs, excessive use of organic solvents, high residual solvent levels, difficult particle size control and distributions, drug loading-related challenges, and time and energy consumption. This review illustrates how supercritical fluid (SCF) technologies can be superior in controlling the morphology of API particles and in the production of drug carriers due to SCF's non-toxic, inert, economical, and environmentally friendly properties. The SCF's advantages, benefits, and various preparation methods are discussed. Drug carrier formulations discussed in this review include microparticles, nanoparticles, polymeric membranes, aerogels, microporous foams, solid lipid nanoparticles, and liposomes.
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Affiliation(s)
- Paroma Chakravarty
- Small Molecule Pharmaceutics, Genentech, Inc. So. San Francisco, CA 94080, USA; (P.C.); (K.N.)
| | - Amin Famili
- Small Molecule Analytical Chemistry, Genentech, Inc. So. San Francisco, CA 94080, USA;
| | - Karthik Nagapudi
- Small Molecule Pharmaceutics, Genentech, Inc. So. San Francisco, CA 94080, USA; (P.C.); (K.N.)
| | - Mohammad A. Al-Sayah
- Small Molecule Analytical Chemistry, Genentech, Inc. So. San Francisco, CA 94080, USA;
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7
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Gavin C, Verbeek CJR, Lay MC. The role of plasticizers during protein thermoplastic foaming. J Appl Polym Sci 2019. [DOI: 10.1002/app.47781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chanelle Gavin
- School of Engineering, Faculty of Science and EngineeringUniversity of Waikato Knighton Road, Hamilton 3240 New Zealand
| | - Casparus J. R. Verbeek
- School of Engineering, Faculty of Science and EngineeringUniversity of Waikato Knighton Road, Hamilton 3240 New Zealand
| | - Mark C. Lay
- School of Engineering, Faculty of Science and EngineeringUniversity of Waikato Knighton Road, Hamilton 3240 New Zealand
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8
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A UV-cured nanofibrous membrane of vinylbenzylated gelatin-poly(ɛ-caprolactone) dimethacrylate co-network by scalable free surface electrospinning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:541-555. [DOI: 10.1016/j.msec.2018.05.076] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 05/03/2018] [Accepted: 05/26/2018] [Indexed: 12/15/2022]
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9
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Microcellular foaming of arabinoxylan and PEGylated arabinoxylan with supercritical CO2. Carbohydr Polym 2018; 181:442-449. [DOI: 10.1016/j.carbpol.2017.09.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 11/18/2022]
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10
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Gavin C, Lay MC, Verbeek CJR. Conformational changes after foaming in a protein-based thermoplastic. J Appl Polym Sci 2017. [DOI: 10.1002/app.46005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Chanelle Gavin
- School of Engineering, Faculty of Science and Engineering; University of Waikato; Hamilton New Zealand
| | - Mark C. Lay
- School of Engineering, Faculty of Science and Engineering; University of Waikato; Hamilton New Zealand
| | - Casparus J. R. Verbeek
- School of Engineering, Faculty of Science and Engineering; University of Waikato; Hamilton New Zealand
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11
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The effect of gelatin inclusion in high protein extruded pet food on kibble physical properties. Anim Feed Sci Technol 2017. [DOI: 10.1016/j.anifeedsci.2017.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Walallavita AS, Verbeek CJR, Lay MC. Biopolymer foams from Novatein thermoplastic protein and poly(lactic acid). J Appl Polym Sci 2017. [DOI: 10.1002/app.45561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Mark Christopher Lay
- Department of Engineering; School of Science and Engineering, University of Waikato; Hamilton 3240 New Zealand
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13
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Oliviero M, Sorrentino L, Cafiero L, Galzerano B, Sorrentino A, Iannace S. Foaming behavior of bio-based blends based on thermoplastic gelatin and poly(butylene succinate). J Appl Polym Sci 2015. [DOI: 10.1002/app.42704] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Maria Oliviero
- Institute for Polymers, Composite and Biomaterials (IPCB-CNR); Piazzale Enrico Fermi 1 80055 Portici (Napoli) Italy
| | - Luigi Sorrentino
- Institute for Polymers, Composite and Biomaterials (IPCB-CNR); Piazzale Enrico Fermi 1 80055 Portici (Napoli) Italy
| | - Livia Cafiero
- Institute for Polymers, Composite and Biomaterials (IPCB-CNR); Piazzale Enrico Fermi 1 80055 Portici (Napoli) Italy
| | - Barbara Galzerano
- Institute for Polymers, Composite and Biomaterials (IPCB-CNR); Piazzale Enrico Fermi 1 80055 Portici (Napoli) Italy
| | - Andrea Sorrentino
- Institute for Polymers, Composite and Biomaterials (IPCB-CNR); Piazzale Enrico Fermi 1 80055 Portici (Napoli) Italy
| | - Salvatore Iannace
- Institute for Polymers, Composite and Biomaterials (IPCB-CNR); Piazzale Enrico Fermi 1 80055 Portici (Napoli) Italy
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Trujillo-de Santiago G, Portales-Cabrera CG, Portillo-Lara R, Araiz-Hernández D, Del Barone MC, García-López E, Rojas-de Gante C, de los Angeles De Santiago-Miramontes M, Segoviano-Ramírez JC, García-Lara S, Rodríguez-González CÁ, Alvarez MM, Di Maio E, Iannace S. Supercritical CO2 foaming of thermoplastic materials derived from maize: proof-of-concept use in mammalian cell culture applications. PLoS One 2015; 10:e0122489. [PMID: 25859853 PMCID: PMC4393026 DOI: 10.1371/journal.pone.0122489] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 02/25/2015] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Foams are high porosity and low density materials. In nature, they are a common architecture. Some of their relevant technological applications include heat and sound insulation, lightweight materials, and tissue engineering scaffolds. Foams derived from natural polymers are particularly attractive for tissue culture due to their biodegradability and bio-compatibility. Here, the foaming potential of an extensive list of materials was assayed, including slabs elaborated from whole flour, the starch component only, or the protein fraction only of maize seeds. METHODOLOGY/PRINCIPAL FINDINGS We used supercritical CO2 to produce foams from thermoplasticized maize derived materials. Polyethylene-glycol, sorbitol/glycerol, or urea/formamide were used as plasticizers. We report expansion ratios, porosities, average pore sizes, pore morphologies, and pore size distributions for these materials. High porosity foams were obtained from zein thermoplasticized with polyethylene glycol, and from starch thermoplasticized with urea/formamide. Zein foams had a higher porosity than starch foams (88% and 85%, respectively) and a narrower and more evenly distributed pore size. Starch foams exhibited a wider span of pore sizes and a larger average pore size than zein (208.84 vs. 55.43 μm2, respectively). Proof-of-concept cell culture experiments confirmed that mouse fibroblasts (NIH 3T3) and two different prostate cancer cell lines (22RV1, DU145) attached to and proliferated on zein foams. CONCLUSIONS/SIGNIFICANCE We conducted screening and proof-of-concept experiments on the fabrication of foams from cereal-based bioplastics. We propose that a key indicator of foamability is the strain at break of the materials to be foamed (as calculated from stress vs. strain rate curves). Zein foams exhibit attractive properties (average pore size, pore size distribution, and porosity) for cell culture applications; we were able to establish and sustain mammalian cell cultures on zein foams for extended time periods.
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Affiliation(s)
- Grissel Trujillo-de Santiago
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
- Harvard-MIT Helath Sciences and Technology, Brigham and Women’s Hospital, Cambridge, Massachusetts, United States of America
| | | | - Roberto Portillo-Lara
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | - Diana Araiz-Hernández
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | - Maria Cristina Del Barone
- Institute of Polymers, Composites and Biomaterials, Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Erika García-López
- Centro de Innovación en Diseño y Tecnología, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | | | | | | | - Silverio García-Lara
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | | | - Mario Moisés Alvarez
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
- Harvard-MIT Helath Sciences and Technology, Brigham and Women’s Hospital, Cambridge, Massachusetts, United States of America
| | - Ernesto Di Maio
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, University of Naples Federico II, Naples, Italy
| | - Salvatore Iannace
- Institute of Polymers, Composites and Biomaterials, Consiglio Nazionale delle Ricerche, Naples, Italy
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15
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Verdolotti L, Oliviero M, Lavorgna M, Iozzino V, Larobina D, Iannace S. Bio-hybrid foams by silsesquioxanes cross-linked thermoplastic zein films. J CELL PLAST 2014. [DOI: 10.1177/0021955x14529138] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hybrid materials, a new class of materials obtained by sol-gel approach and based on the nanoscale interaction between inorganic and organic phases, have recently gained large scientific and industrial attention. In this work, the material designing of zein hybrid materials with tailored properties is addressed to the production of zein hybrid foams by both gas foaming and supercritical carbon dioxide, CO2 drying. Hybrid materials have been produced from thermoplastic zein and 3-glycidoxypropyltrimethoxysilane by a two-step procedure including reactive melt mixing and a simultaneous sol-gel approach. Protein structural changes have been investigated by infrared spectroscopy and correlated with thermomechanical properties. The hybrid foams have been analyzed by scanning electron microscopy in order to evaluate the effect of silsesquioxanes domains on the porous structure. Hybrid microcellular foams with homogeneous cellular structures have been obtained by both foaming approaches. A bimodal structure with bubbles characterized by micrometric and nanometric sizes was obtained in hybrid foams obtained with CO2 drying.
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Affiliation(s)
- Letizia Verdolotti
- Institute for Composite and Biomedical Materials, National Research Council, Granatello, Portici (NA), Italy
| | - Maria Oliviero
- Institute for Composite and Biomedical Materials, National Research Council, Granatello, Portici (NA), Italy
| | - Marino Lavorgna
- Institute for Composite and Biomedical Materials, National Research Council, Granatello, Portici (NA), Italy
| | - Valentina Iozzino
- Institute for Composite and Biomedical Materials, National Research Council, Granatello, Portici (NA), Italy
| | - Domenico Larobina
- Institute for Composite and Biomedical Materials, National Research Council, Granatello, Portici (NA), Italy
| | - Salvatore Iannace
- Institute for Composite and Biomedical Materials, National Research Council, Granatello, Portici (NA), Italy
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16
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Yang G, Su J, Gao J, Hu X, Geng C, Fu Q. Fabrication of well-controlled porous foams of graphene oxide modified poly(propylene-carbonate) using supercritical carbon dioxide and its potential tissue engineering applications. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2012.11.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Oliviero M, Verdolotti L, Nedi I, Docimo F, Di Maio E, Iannace S. Effect of two kinds of lignins, alkaline lignin and sodium lignosulfonate, on the foamability of thermoplastic zein-based bionanocomposites. J CELL PLAST 2012. [DOI: 10.1177/0021955x12460043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of this study was to utilize zein, a protein from corn, to develop bioplastic formulations in combination with reactive additives based on ligninic compounds and to investigate the effects of these highly interactive additives on the foamability of zein. In particular, different amounts of alkaline lignin and sodium lignosulfonate were added to zein powder and poly(ethylene glycol) through melt mixing to achieve thermoplastic bio-polymers, which were subsequently foamed in a batch process, with a mixture of CO2 and N2 as blowing agent, in the temperature range 50–60°C. The materials before foaming were characterized by X-ray and Fourier transform infrared analysis to highlight the physico-chemical interactions and the eventual destructuration of the protein secondary structure. After foaming, density measurements, scanning electron microscopy and image analysis have been used in order to evaluate the porosity and the pore size distribution of the microstructure of the foams and to determine the effect of the ligninic compounds on the foamability of the bioplastic.
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Affiliation(s)
- Maria Oliviero
- Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy
| | - Letizia Verdolotti
- Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy
| | - Irma Nedi
- Department of Materials and Production Engineering, University of Naples Federico II, Naples, Italy
| | - Fabio Docimo
- Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy
| | - Ernesto Di Maio
- Department of Materials and Production Engineering, University of Naples Federico II, Naples, Italy
| | - Salvatore Iannace
- Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy
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Salerno A, Di Maio E, Iannace S, Netti P. Solid-state supercritical CO2 foaming of PCL and PCL-HA nano-composite: Effect of composition, thermal history and foaming process on foam pore structure. J Supercrit Fluids 2011. [DOI: 10.1016/j.supflu.2011.05.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Salerno A, Di Maio E, Iannace S, Netti PA. Tuning the microstructure and biodegradation of three-phase scaffolds for bone regeneration made of PCL, Zein, and HA. J CELL PLAST 2011. [DOI: 10.1177/0021955x11404832] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study has been the design of novel multi-phase porous scaffolds with bi-modal pore size distributions and controlled biodegradation rate for bone tissue engineering (bTE), via a gas foaming—leaching approach. Poly( ε-caprolactone) (PCL) has been melt mixed with thermoplastic zein (TZ) and hydroxyapatite particle, to prepare multi-phase PCL—TZ and PCL—TZ—HA composites suitable to be further processed for the fabrication of 3D porous scaffolds. To this aim, these systems have been gas foamed by using CO2 as blowing agent and, subsequently, soaked in H2O to leach out the plasticizer from the TZ. This combined process allows the formation of an interpenetrated micro- and macro-porosity network within the samples. The effect of the different formulations on the micro-structural properties and in vitro biodegradation of the scaffolds has been investigated, and the results correlated to the mechanisms involved in the formation of the bi-modal pore structure. Results demonstrated that the multi-phase nature of the biomaterials prepared as well as their composition significantly affect the micro-structural properties and biodegradation rate of the scaffolds. The optimal selection of the processing conditions may allow for the design of multi-phase 3D porous scaffolds suitable for bTE.
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Affiliation(s)
- A. Salerno
- Interdisciplinary Research Centre on Biomaterials (CRIB), Italian Institute of Technology (T), University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy; Institute of Composite and Biomedical Materials, National Research Council (IMCB-CNR), Piazz.le Tecchio 80, 80125, Naples, Italy,
| | - E. Di Maio
- Department of Materials and Production Engineering, University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy
| | - S. Iannace
- Institute of Composite and Biomedical Materials, National Research Council (IMCB-CNR), Piazz.le Tecchio 80, 80125, Naples, Italy
| | - PA Netti
- Interdisciplinary Research Centre on Biomaterials (CRIB), Italian Institute of Technology (T), University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy; Department of Materials and Production Engineering, University of Naples Federico , Piazz.le Tecchio 80, 80125 Naples, Italy
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Salerno A, Oliviero M, Di Maio E, Netti PA, Rofani C, Colosimo A, Guida V, Dallapiccola B, Palma P, Procaccini E, Berardi AC, Velardi F, Teti A, Iannace S. Design of novel three-phase PCL/TZ-HA biomaterials for use in bone regeneration applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:2569-2581. [PMID: 20596759 DOI: 10.1007/s10856-010-4119-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Accepted: 06/22/2010] [Indexed: 05/29/2023]
Abstract
The design of bioactive scaffold materials able to guide cellular processes involved in new-tissue genesis is key determinant in bone tissue engineering. The aim of this study was the design and characterization of novel multi-phase biomaterials to be processed for the fabrication of 3D porous scaffolds able to provide a temporary biocompatible substrate for mesenchymal stem cells (MSCs) adhesion, proliferation and osteogenic differentiation. The biomaterials were prepared by blending poly(epsilon-caprolactone) (PCL) with thermoplastic zein (TZ), a thermoplastic material obtained by de novo thermoplasticization of zein. Furthermore, to bioactivate the scaffolds, microparticles of osteoconductive hydroxyapatite (HA) were dispersed within the organic phases. Results demonstrated that materials and formulations strongly affected the micro-structural properties and hydrophilicity of the scaffolds and, therefore, had a pivotal role in guiding cell/scaffold interaction. In particular, if compared to neat PCL, PCL-HA composite and PCL/TZ blend, the three-phase PCL/TZ-HA showed improved MSCs adhesion, proliferation and osteogenic differentiation capability, thus demonstrating potential for bone regeneration.
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Affiliation(s)
- Aurelio Salerno
- Interdisciplinary Research Centre on Biomaterials (CRIB) and Italian Institute of Technology, Piazzale Tecchio 80, 80125, Naples, Italy.
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Salerno A, Guarnieri D, Iannone M, Zeppetelli S, Netti PA. Effect of Micro- and Macroporosity of Bone Tissue Three-Dimensional-Poly(ɛ-Caprolactone) Scaffold on Human Mesenchymal Stem Cells Invasion, Proliferation, and Differentiation In Vitro. Tissue Eng Part A 2010; 16:2661-73. [DOI: 10.1089/ten.tea.2009.0494] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Aurelio Salerno
- Interdisciplinary Research Centre on Biomaterials, CRIB, University of Naples Federico II, Naples, Italy
- Institute of Composite and Biomedical Materials and National Research Council, IMCB-CNR, University of Naples Federico II, Naples, Italy
- Italian Institute of Technology, IIT, University of Naples Federico II, Naples, Italy
| | - Daniela Guarnieri
- Interdisciplinary Research Centre on Biomaterials, CRIB, University of Naples Federico II, Naples, Italy
- Italian Institute of Technology, IIT, University of Naples Federico II, Naples, Italy
| | - Maria Iannone
- Department of Materials and Production Engineering, University of Naples Federico II, Naples, Italy
| | - Stefania Zeppetelli
- Institute of Composite and Biomedical Materials and National Research Council, IMCB-CNR, University of Naples Federico II, Naples, Italy
| | - Paolo A. Netti
- Interdisciplinary Research Centre on Biomaterials, CRIB, University of Naples Federico II, Naples, Italy
- Italian Institute of Technology, IIT, University of Naples Federico II, Naples, Italy
- Department of Materials and Production Engineering, University of Naples Federico II, Naples, Italy
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Salerno A, Oliviero M, Di Maio E, Iannace S, Netti PA. Design of porous polymeric scaffolds by gas foaming of heterogeneous blends. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:2043-2051. [PMID: 19430895 DOI: 10.1007/s10856-009-3767-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2009] [Accepted: 04/24/2009] [Indexed: 05/26/2023]
Abstract
One of the challenges in tissue engineering scaffold design is the realization of structures with a pre-defined multi-scaled porous network. Along this line, this study aimed at the design of porous scaffolds with controlled porosity and pore size distribution from blends of poly(epsilon-caprolactone) (PCL) and thermoplastic gelatin (TG), a thermoplastic natural material obtained by de novo thermoplasticization of gelatin. PCL/TG blends with composition in the range from 40/60 to 60/40 (w/w) were prepared by melt mixing process. The multi-phase microstructures of these blends were analyzed by scanning electron microscopy and dynamic mechanical analysis. Furthermore, in order to prepare open porous scaffolds for cell culture and tissue replacement, the TG and PCL were selectively extracted from the blends by the appropriate combination of solvent and extraction parameters. Finally, with the proposed combination of gas foaming and selective polymer extraction technologies, PCL and TG porous materials with multi-scaled and highly interconnected porosities were designed as novel scaffolds for new-tissue regeneration.
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Affiliation(s)
- A Salerno
- Department of Materials and Production Engineering & Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, 80125 Naples, Italy
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Abstract
The aim of this study was to combine gas foaming (GF) and reverse templating techniques to prepare open-pore polymeric foams with pore structures specifically designed for tissue engineering. Poly(ε-caprolactone) (PCL) has been melt mixed with two different templating agents, NaCl microparticles and thermoplastic gelatin (TG), to prepare microparticulate composites and co-continuous blends, respectively. These heterogeneous systems have been subsequently gas foamed by using mixtures of N2 and CO2 as blowing agents. Finally, the foamed materials have been soaked in H2O to selectively extract the NaCl or TG from the polymeric matrices to achieve the final foamed structure. The presence of the different templating agents extensively affected the foaming process of PCL; these effects have been analyzed and the results gathered important information to design porous scaffolds with fine tuned open-pore architectures. In particular, the control of the overall porosity, pore size and shape, pore interconnectivity, and spatial distribution of PCL matrix has been achieved by optimizing the GF process parameters with respect to the specific templating system. Results demonstrated that the combination of the GF and reverse templating techniques allowed the preparation of PCL scaffolds with open-pore architectures and highly controlled porosity and pore size spatial distribution.
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Salerno A, Iannace S, Netti PA. Open-pore biodegradable foams prepared via gas foaming and microparticulate templating. Macromol Biosci 2008; 8:655-64. [PMID: 18350540 DOI: 10.1002/mabi.200700278] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Open-pore biodegradable foams with controlled porous architectures were prepared by combining gas foaming and microparticulate templating. Microparticulate composites of poly(epsilon-caprolactone) (PCL) and micrometric sodium chloride particles (NaCl), in concentrations ranging from 70/30 to 20/80 wt.-% of PCL/NaCl were melt-mixed and gas-foamed using carbon dioxide as physical blowing agent. The effects of microparticle concentration, foaming temperature, and pressure drop rate on foam microstructure were surveyed and related to the viscoelastic properties of the polymer/microparticle composite melt. Results showed that foams with open-pore networks can be obtained and that porosity, pore size, and interconnectivity may be finely modulated by optimizing the processing parameters. Furthermore, the ability to obtain a spatial gradient of porosity embossed within the three-dimensional polymer structure was exploited by using a heterogeneous microparticle filling. Results indicated that by foaming composites with microparticle concentration gradients, it was also possible to control the porosity and pore-size spatial distribution of the open-pore PCL foams.
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Affiliation(s)
- Aurelio Salerno
- Interdisciplinary Research Centre on Biomaterials (CRIB) and Italian Institute of Technology (IIT), Piazzale Tecchio 80, 80125 Naples, Italy
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