1
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Takeshita S, Ono T. Biopolymer-Polysiloxane Double Network Aerogels. Angew Chem Int Ed Engl 2023; 62:e202306518. [PMID: 37466360 DOI: 10.1002/anie.202306518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Indexed: 07/20/2023]
Abstract
A new series of transparent aerogels of biopolymer-polysiloxane double networks is reported. Biopolymer aerogels have attracted much attention from green and sustainable aspects but suffered from strong hydrophilicity and difficulty to make homogeneous structures in nanoscale; these drawbacks are overcome by compositing with a polysiloxane network. Alginate-polymethylsilsesquioxane aerogel has high optical transparency, water repellency, comparable superinsulation property and improved bending flexibility compared to pure polymethylsilsesquioxane aerogel. The nanoscale homogeneity is realized by separating the crosslinking steps for two networks in a sequential protocol: condensation of siloxane bonds and metal-crosslinking of biopolymer. The crosslinking order, biopolymer-first or siloxane-first, and universality/limitation of biopolymer-crosslinker pairs are discussed to construct fundamental chemistry of double network systems for their further application potentials.
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Affiliation(s)
- Satoru Takeshita
- Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, 3058565, Tsukuba, Japan
| | - Takumi Ono
- Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, 3058565, Tsukuba, Japan
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2
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Basak S, Singhal RS. The potential of supercritical drying as a “green” method for the production of food-grade bioaerogels: A comprehensive critical review. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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3
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Influence of Cross-Linking Conditions on Drying Kinetics of Alginate Hydrogel. Gels 2023; 9:gels9010063. [PMID: 36661829 PMCID: PMC9858758 DOI: 10.3390/gels9010063] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
Hydrogels are three-dimensional cross-linked polymeric networks capable of a large amount of fluid retention in their structure. Hydrogel outputs manufactured using additive manufacturing technologies are exposed to water loss, which may change their original shape and dimensions. Therefore, the possibility of retaining water is important in such a structure. In this manuscript, kinetic analysis of water evaporation from sodium alginate-based hydrogels exposed to different environmental conditions such as different temperatures (7 and 23 °C) and ambient humidity (45, 50 and 95%) has been carried out. The influence of the cross-linking method (different calcium chloride concentration-0.05, 0.1 and 0.5 M) of sodium alginate and cross-linking time on the water loss was also considered. Studies have shown that a decrease in the temperature and increase in the storage humidity can have a positive effect on the water retention in the structure. The storage conditions that led to the least weight and volume loss were T 7 °C and 95% humidity. These experiments may help in selecting the appropriate hydrogel preparation method for future applications, as well as their storage conditions for minimum water loss and, consequently, the least change in dimensions and shape.
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4
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Scala P, Manzo P, Lamparelli EP, Lovecchio J, Ciardulli MC, Giudice V, Selleri C, Giordano E, Rehak L, Maffulli N, Della Porta G. Peripheral blood mononuclear cells contribute to myogenesis in a 3D bioengineered system of bone marrow mesenchymal stem cells and myoblasts. Front Bioeng Biotechnol 2023; 10:1075715. [PMID: 36704300 PMCID: PMC9871311 DOI: 10.3389/fbioe.2022.1075715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/28/2022] [Indexed: 01/12/2023] Open
Abstract
In this work, a 3D environment obtained using fibrin scaffold and two cell populations, such as bone marrow-derived mesenchymal stem cells (BM-MSCs), and primary skeletal muscle cells (SkMs), was assembled. Peripheral blood mononuclear cells (PBMCs) fraction obtained after blood filtration with HemaTrate® filter was then added to the 3D culture system to explore their influence on myogenesis. The best cell ratio into a 3D fibrin hydrogel was 1:1 (BM-MSCs plus SkMs:PBMCs) when cultured in a perfusion bioreactor; indeed, excellent viability and myogenic event induction were observed. Myogenic genes were significantly overexpressed when cultured with PBMCs, such as MyoD1 of 118-fold at day 14 and Desmin 6-fold at day 21. Desmin and Myosin Heavy Chain were also detected at protein level by immunostaining along the culture. Moreover, the presence of PBMCs in 3D culture induced a significant downregulation of pro-inflammatory cytokine gene expression, such as IL6. This smart biomimetic environment can be an excellent tool for investigation of cellular crosstalk and PBMC influence on myogenic processes.
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Affiliation(s)
- Pasqualina Scala
- Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy
| | - Paola Manzo
- Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy,Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi D’Aragona”, Salerno, Italy
| | | | - Joseph Lovecchio
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi” (DEI), University of Bologna, Bologna, Italy
| | | | - Valentina Giudice
- Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy,Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi D’Aragona”, Salerno, Italy
| | - Carmine Selleri
- Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy,Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi D’Aragona”, Salerno, Italy
| | - Emanuele Giordano
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi” (DEI), University of Bologna, Bologna, Italy
| | - Laura Rehak
- Athena Biomedical innovations, Florence, Italy
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy,Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, England
| | - Giovanna Della Porta
- Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy,Interdepartment Centre BIONAM, University of Salerno, Fisciano, Italy,*Correspondence: Giovanna Della Porta,
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5
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Liu Z, Couto R, Seifried B, Yépez B, Moquin P, Temelli F. Drying of sodium alginate using Pressurized Gas eXpanded (PGX) liquid technology. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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de la Harpe KM, Marimuthu T, Kondiah PPD, Kumar P, Ubanako P, Choonara YE. Synthesis of a novel monofilament bioabsorbable suture for biomedical applications. J Biomed Mater Res B Appl Biomater 2022; 110:2189-2210. [PMID: 35373911 PMCID: PMC9546231 DOI: 10.1002/jbm.b.35069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 11/07/2022]
Abstract
In this research, a novel bioabsorbable suture that is, monofilament and capable of localized drug delivery, was developed from a combination of natural biopolymers that where not previously applied for this purpose. The optimized suture formulation comprised of sodium alginate (6% wt/vol), pectin (0.1% wt/vol), and gelatin (3% wt/vol), in the presence of glycerol (4% vol/vol) which served as a plasticizer. The monofilament bioabsorbable sutures where synthesized via in situ ionic crosslinking in a barium chloride solution (2% wt/vol). The resulting suture was characterized in terms of mechanical properties, morphology, swelling, degradation, drug release, and biocompatibility, in addition to Fourier-transform infrared (FTIR) spectroscopy, Powder X-ray Diffraction (PXRD) and Differential Scanning Calorimetry (DSC) analysis. The drug loaded and non-drug loaded sutures had a maximum breaking strength of 4.18 and 4.08 N, in the straight configuration and 2.44 N and 2.59 N in the knot configuration, respectively. FTIR spectrum of crosslinked sutures depicted Δ9 cm-1 downward shift for the carboxyl stretching band which was indicative of ionic interactions between barium ions and sodium alginate. In vitro analysis revealed continued drug release for 7 days and gradual degradation by means of surface erosion, which was completed by day 28. Biocompatibility studies revealed excellent hemocompatibility and no cytotoxicity. These results suggest that the newly developed bioabsorbable suture meets the basic requirements of a suture material and provides a viable alternative to the synthetic polymer sutures that are currently on the market.
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Affiliation(s)
- Kara M de la Harpe
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa
| | - Pierre P D Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa
| | - Philemon Ubanako
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa
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7
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Multistage drawing scCO2-assisted ultrahigh molecular weight polyethylene/activated nanocarbon fibers and their performance. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02918-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Xiang Y, Tu Z, Lei T, Zhang J, Yeh J. Multiple‐step drawing innovative ultrahigh‐molecular‐weight polyethylene fibers modified with bacterial cellulose and
scCO
2
‐aid. J Appl Polym Sci 2021. [DOI: 10.1002/app.50744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yu Xiang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering Hubei University Wuhan P. R. China
| | - Zhong‐dan Tu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering Hubei University Wuhan P. R. China
| | - Ting Lei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering Hubei University Wuhan P. R. China
| | - Jia‐xin Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering Hubei University Wuhan P. R. China
| | - Jen‐taut Yeh
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering Hubei University Wuhan P. R. China
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9
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Bernardes BG, Del Gaudio P, Alves P, Costa R, García-Gonzaléz CA, Oliveira AL. Bioaerogels: Promising Nanostructured Materials in Fluid Management, Healing and Regeneration of Wounds. Molecules 2021; 26:3834. [PMID: 34201789 PMCID: PMC8270285 DOI: 10.3390/molecules26133834] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/09/2021] [Accepted: 06/21/2021] [Indexed: 12/16/2022] Open
Abstract
Wounds affect one's quality of life and should be managed on a patient-specific approach, based on the particular healing phase and wound condition. During wound healing, exudate is produced as a natural response towards healing. However, excessive production can be detrimental, representing a challenge for wound management. The design and development of new healing devices and therapeutics with improved performance is a constant demand from the healthcare services. Aerogels can combine high porosity and low density with the adequate fluid interaction and drug loading capacity, to establish hemostasis and promote the healing and regeneration of exudative and chronic wounds. Bio-based aerogels, i.e., those produced from natural polymers, are particularly attractive since they encompass their intrinsic chemical properties and the physical features of their nanostructure. In this work, the emerging research on aerogels for wound treatment is reviewed for the first time. The current scenario and the opportunities provided by aerogels in the form of films, membranes and particles are identified to face current unmet demands in fluid managing and wound healing and regeneration.
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Affiliation(s)
- Beatriz G. Bernardes
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina–Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal;
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma Group (GI-1645), Faculty of Pharmacy and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Pasquale Del Gaudio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Italy;
| | - Paulo Alves
- Center for Interdisciplinary Research in Health, Institute of Health Sciences, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal;
| | - Raquel Costa
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), 4200-135 Porto, Portugal
- Biochemistry Unit, Department of Biomedicine, Faculdade de Medicina, Universidade do Porto, 4200-319 Porto, Portugal
- Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal
| | - Carlos A. García-Gonzaléz
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma Group (GI-1645), Faculty of Pharmacy and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Ana Leite Oliveira
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina–Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal;
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10
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Gorshkova N, Brovko O, Palamarchuk I, Bogolitsyn K, Ivakhnov A. Preparation of bioactive aerogel material based on sodium alginate and chitosan for controlled release of levomycetin. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Natalia Gorshkova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences Arkhangelsk Russia
| | - Olga Brovko
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences Arkhangelsk Russia
| | - Irina Palamarchuk
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences Arkhangelsk Russia
| | - Konstantin Bogolitsyn
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences Arkhangelsk Russia
| | - Artem Ivakhnov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences Arkhangelsk Russia
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11
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Guastaferro M, Reverchon E, Baldino L. Agarose, Alginate and Chitosan Nanostructured Aerogels for Pharmaceutical Applications: A Short Review. Front Bioeng Biotechnol 2021; 9:688477. [PMID: 34055766 PMCID: PMC8149959 DOI: 10.3389/fbioe.2021.688477] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 04/20/2021] [Indexed: 01/16/2023] Open
Abstract
In this short review, drug delivery systems, formed by polysaccharide-based (i.e., agarose, alginate, and chitosan) aerogels, are analyzed. In particular, the main papers, published in the period 2011-2020 in this research field, have been investigated and critically discussed, in order to highlight strengths and weaknesses of the traditional production techniques (e.g., freeze-drying and air evaporation) of bio-aerogels with respect to supercritical CO2 assisted drying. Supercritical CO2 assisted drying demonstrated to be a promising technique to produce nanostructured bio-aerogels that maintain the starting gel volume and shape, when the solvent removal occurs at negligible surface tension. This characteristic, coupled with the possibility of removing also cross-linking agent residues from the aerogels, makes these advanced devices safe and suitable as carriers for controlled drug delivery applications.
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12
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Yu S, Song S, Li R, Fang B. The lightest solid meets the lightest gas: an overview of carbon aerogels and their composites for hydrogen related applications. NANOSCALE 2020; 12:19536-19556. [PMID: 32968741 DOI: 10.1039/d0nr05050d] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Hydrogen, a renewable and recyclable energy, has been regarded as the best solution for global energy supply in the 21st century. Hydrogen production, hydrogen storage and hydrogen sensing are three most important aspects for hydrogen economy. Interestingly, the lightest solid, carbon aerogels (CAs), has found wide applications in these aspects due to its unique characteristics including large specific surface area, hierarchical porous structure, high electrical conductivity, superb chemical stability, and low fabrication cost. Herein, various fabrication strategies of CAs are presented, and their applications in the three most important aspects are comprehensively reviewed. In addition, the challenges and prospects are also discussed. In the light of the recent progress in CAs for hydrogen-related applications, this review provides a comprehensive assessment on materials selection, synthesis, hydrogen adsorption characteristics of CAs and catalytic activity of CA-supported nanocatalysts, offering a strategic guide to build a close connection between CAs and hydrogen economy.
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Affiliation(s)
- Sheng Yu
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang Province 310024, China
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13
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Santos PD, Viganó J, Furtado GDF, Cunha RL, Hubinger MD, Rezende CA, Martínez J. Production of resveratrol loaded alginate aerogel: Characterization, mathematical modeling, and study of impregnation. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104882] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Auriemma G, Russo P, Del Gaudio P, García-González CA, Landín M, Aquino RP. Technologies and Formulation Design of Polysaccharide-Based Hydrogels for Drug Delivery. Molecules 2020; 25:E3156. [PMID: 32664256 PMCID: PMC7397281 DOI: 10.3390/molecules25143156] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/29/2020] [Accepted: 07/02/2020] [Indexed: 01/31/2023] Open
Abstract
Polysaccharide-based hydrogel particles (PbHPs) are very promising carriers aiming to control and target the release of drugs with different physico-chemical properties. Such delivery systems can offer benefits through the proper encapsulation of many drugs (non-steroidal and steroidal anti-inflammatory drugs, antibiotics, etc) ensuring their proper release and targeting. This review discusses the different phases involved in the production of PbHPs in pharmaceutical technology, such as droplet formation (SOL phase), sol-gel transition of the droplets (GEL phase) and drying, as well as the different methods available for droplet production with a special focus on prilling technique. In addition, an overview of the various droplet gelation methods with particular emphasis on ionic cross-linking of several polysaccharides enabling the formation of particles with inner highly porous network or nanofibrillar structure is given. Moreover, a detailed survey of the different inner texture, in xerogels, cryogels or aerogels, each with specific arrangement and properties, which can be obtained with different drying methods, is presented. Various case studies are reported to highlight the most appropriate application of such systems in pharmaceutical field. We also describe the challenges to be faced for the breakthrough towards clinic studies and, finally, the market, focusing on the useful approach of safety-by-design (SbD).
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Affiliation(s)
- Giulia Auriemma
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
| | - Paola Russo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
| | - Pasquale Del Gaudio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
| | - Carlos A. García-González
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (C.A.G.-G.); (M.L.)
| | - Mariana Landín
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (C.A.G.-G.); (M.L.)
| | - Rita Patrizia Aquino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
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15
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Hatami T, Viganó J, Innocentini Mei LH, Martínez J. Production of alginate-based aerogel particles using supercritical drying: Experiment, comprehensive mathematical model, and optimization. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104791] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Del Gaudio P, Amante C, Civale R, Bizzarro V, Petrella A, Pepe G, Campiglia P, Russo P, Aquino RP. In situ gelling alginate-pectin blend particles loaded with Ac2-26: A new weapon to improve wound care armamentarium. Carbohydr Polym 2020; 227:115305. [DOI: 10.1016/j.carbpol.2019.115305] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/06/2019] [Accepted: 09/06/2019] [Indexed: 12/17/2022]
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17
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Wang DW, Sun LS, Peng XL, Runt J, Kuo MC, Huang KS, Yeh JT. Tapioca/polyvinyl alcohol thermoplastic starch materials processed with the aid of supercritical CO2. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2019.100425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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18
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Mi S, Sun L, Runt J, Kuo M, Huang K, Yeh J. Sodium Hexametaphosphate‐Modified Thermoplastic Starch Materials Prepared with the Assistance of Supercritical CO
2. STARCH-STARKE 2019. [DOI: 10.1002/star.201900055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Si‐yu Mi
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry of Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsFaculty of Materials Science and EngineeringHubei University Wuhan 430062 China
| | - Liang‐shuang Sun
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry of Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsFaculty of Materials Science and EngineeringHubei University Wuhan 430062 China
| | - James Runt
- Department of Materials Science and EngineeringPenn State University University Park PA 19104 USA
| | - Mu‐chen Kuo
- Department of Materials EngineeringKun Shan University Tainan 71070 Taiwan
| | - Kuo‐shien Huang
- Department of Materials EngineeringKun Shan University Tainan 71070 Taiwan
| | - Jen‐taut Yeh
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMinistry of Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsFaculty of Materials Science and EngineeringHubei University Wuhan 430062 China
- Department of Materials Science and EngineeringPenn State University University Park PA 19104 USA
- Department of Materials EngineeringKun Shan University Tainan 71070 Taiwan
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19
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Trucillo E, Bisceglia B, Valdrè G, Giordano E, Reverchon E, Maffulli N, Della Porta G. Growth factor sustained delivery from poly-lactic-co-glycolic acid microcarriers and its mass transfer modeling by finite element in a dynamic and static three-dimensional environment bioengineered with stem cells. Biotechnol Bioeng 2019; 116:1777-1794. [PMID: 30905072 DOI: 10.1002/bit.26975] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/18/2019] [Accepted: 03/21/2019] [Indexed: 12/15/2022]
Abstract
Poly-lactic-co-glycolic acid (PLGA) microcarriers (0.8 ± 0.2 μm) have been fabricated with a load of 20 μg/gPLGA by an emulsion-based-proprietary technology to sustained deliver human bone morphogenetic protein 2 (hBMP2), a growth factor largely used for osteogenic induction. hBMP2 release profile, measured in vitro, showed a moderate "burst" release of 20% of the load in first 3 days, followed by a sustained release of 3% of the load along the following 21 days. PLGA microbeads loaded with fluorescent marker (8 mg/gPLGA ) and hydroxyapatite (30 mg/gPLGA ) were also fabricated and successfully dispersed within three-dimensional (3D) alginate scaffold (Ca-alginate 2% wt/wt) in a range between 50 and 200 mg/cm3 ; the presence of microcarriers within the scaffold induced a variation of its stiffness between 0.03 and 0.06 MPa; whereas the scaffold surface area was monitored always in the range of 190-200 m2 /g. Uniform microcarriers dispersion was obtained up to 200 mg/cm3 ; higher loading values in the 3D scaffold produced large aggregates. The release data and the surface area were, then, used to simulate by finite element modeling the hBMP2 mass transfer within the 3D hydrogel bioengineered with stem cells, in dynamic and static cultivations. The simulation was developed with COMSOL Multiphysics® giving a good representation of hBMP2 mass balances along microbeads (bulk eroded) and on cell surface (cell binding). hBMP2 degradation rate was also taken into account in the simulations. hBMP2 concentration of 20 ng/cm3 was set as a target because it has been described as the minimum effective value for stem cells stimulation versus the osteogenic phenotype. The sensitivity analysis suggested the best microbeads/cells ratio in the 3D microenvironment, along 21 days of cultivations in both static and dynamic cultivation (perfusion) conditions. The simulated formulation was so assembled experimentally using human mesenchymal stem cells and an improved scaffold stiffness up to 0.09 MPa (n = 3; p ≤ 0.01) was monitored after 21 days of cultivation; moreover a uniform extracellular matrix deposition within the 3D system was detected by Von Kossa staining, especially in dynamic conditions. The results indicated that the described tool can be useful for the design of 3D bioengineered microarchitecture by quantitative understanding.
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Affiliation(s)
- Emanuele Trucillo
- Department of Industrial Engineering, University of Salerno, Fisciano, SA, Italy
| | - Bruno Bisceglia
- Department of Industrial Engineering, University of Salerno, Fisciano, SA, Italy
| | - Giovanni Valdrè
- Department of Biology, Geology and Environmental Science, University of Bologna, Bologna, BO, Italy
| | - Emanuele Giordano
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi" (DEI), University of Bologna, Cesena, FC, Italy
| | - Ernesto Reverchon
- Department of Industrial Engineering, University of Salerno, Fisciano, SA, Italy
| | - Nicola Maffulli
- Translational Medicine Laboratory, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, SA, Italy
| | - Giovanna Della Porta
- Department of Industrial Engineering, University of Salerno, Fisciano, SA, Italy.,Translational Medicine Laboratory, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, SA, Italy
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20
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Rodríguez-Dorado R, López-Iglesias C, García-González CA, Auriemma G, Aquino RP, Del Gaudio P. Design of Aerogels, Cryogels and Xerogels of Alginate: Effect of Molecular Weight, Gelation Conditions and Drying Method on Particles' Micromeritics. Molecules 2019; 24:molecules24061049. [PMID: 30884869 PMCID: PMC6471992 DOI: 10.3390/molecules24061049] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 11/26/2022] Open
Abstract
Processing and shaping of dried gels are of interest in several fields like alginate aerogel beads used as highly porous and nanostructured particles in biomedical applications. The physicochemical properties of the alginate source, the solvent used in the gelation solution and the gel drying method are key parameters influencing the characteristics of the resulting dried gels. In this work, dried gel beads in the form of xerogels, cryogels or aerogels were prepared from alginates of different molecular weights (120 and 180 kDa) and concentrations (1.25, 1.50, 2.0 and 2.25% (w/v)) using different gelation conditions (aqueous and ethanolic CaCl2 solutions) and drying methods (supercritical drying, freeze-drying and oven drying) to obtain particles with a broad range of physicochemical and textural properties. The stability of physicochemical properties of alginate aerogels under storage conditions of 25 °C and 65% relative humidity (ICH-climatic zone II) during 1 and 3 months was studied. Results showed significant effects of the studied processing parameters on the resulting alginate dried gel properties. Stability studies showed small variations in aerogels weight and specific surface area after 3 months of storage, especially, in the case of aerogels produced with medium molecular weight alginate.
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Affiliation(s)
- Rosalía Rodríguez-Dorado
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy.
- Drug Discovery and Development, University of Salerno, 84084 Fisciano, Italy.
| | - Clara López-Iglesias
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, R+D Pharma group (GI-1645), Faculty of Pharmacy and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Carlos A García-González
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, R+D Pharma group (GI-1645), Faculty of Pharmacy and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Giulia Auriemma
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy.
| | - Rita P Aquino
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy.
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21
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Esquivel-Castro TA, Ibarra-Alonso M, Oliva J, Martínez-Luévanos A. Porous aerogel and core/shell nanoparticles for controlled drug delivery: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:915-940. [DOI: 10.1016/j.msec.2018.11.067] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 11/06/2018] [Accepted: 11/27/2018] [Indexed: 12/12/2022]
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22
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Sun LS, Wang DW, Peng XL, Runt J, Huang CM, Huang KS, Yeh JT. Moisture-resistant and strength retention properties of supercritical CO2-processed thermoplastic starch modified by polyvinyl alcohol with varying degrees of polymerization. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liang-Shuang Sun
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering; Hubei University; Wuhan China
| | - Da-wei Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering; Hubei University; Wuhan China
| | - Xuan-long Peng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering; Hubei University; Wuhan China
| | - James Runt
- Department of Materials Science and Engineering; Penn State University; University Park PA USA
| | - Chao-ming Huang
- Department of Materials Engineering; Kun Shan University; Tainan Taiwan
| | - Kuo-Shien Huang
- Department of Materials Engineering; Kun Shan University; Tainan Taiwan
| | - Jen-taut Yeh
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering; Hubei University; Wuhan China
- Department of Materials Engineering; Kun Shan University; Tainan Taiwan
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23
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Rodríguez-Dorado R, Landín M, Altai A, Russo P, Aquino RP, Del Gaudio P. A novel method for the production of core-shell microparticles by inverse gelation optimized with artificial intelligent tools. Int J Pharm 2018; 538:97-104. [DOI: 10.1016/j.ijpharm.2018.01.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/10/2018] [Accepted: 01/12/2018] [Indexed: 12/29/2022]
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24
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Abou Oualid H, Amadine O, Essamlali Y, Dânoun K, Zahouily M. Supercritical CO2 drying of alginate/zinc hydrogels: a green and facile route to prepare ZnO foam structures and ZnO nanoparticles. RSC Adv 2018; 8:20737-20747. [PMID: 35542378 PMCID: PMC9080889 DOI: 10.1039/c8ra02129e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 05/15/2018] [Indexed: 11/21/2022] Open
Abstract
In the present study, we investigate a simple and effective synthetic protocol to produce zinc oxide foams by a facile solution-based method using alginate gelation. The influences of the zinc concentration and the drying process on the structural, textural and morphological properties of the synthesized ZnO nanomaterial were studied and discussed. The components of these nanomaterials were characterized by several techniques to demonstrate the effectiveness of the adopted synthetic route in controlling the growth of the ZnO nanoparticles. XRD analysis revealed that the as-prepared ZnO nanomaterial crystallizes in the hexagonal wurtzite structure. The room temperature photoluminescence (PL) spectra of ZnO show ultra-violet (UV) and visible emissions. SEM analysis revealed the porous texture of the prepared zinc oxide. TEM analysis confirmed the nano dimensions of the synthesized zinc oxide nanoparticles. A comparative study of conventional air drying versus supercritical drying was conducted to determine the influence of each mode of drying on the structural, textural and morphological as well as optical properties of the synthesized ZnO nanoparticles. In the present study, we investigate a simple and effective synthetic protocol to produce zinc oxide foams by a facile solution-based method using alginate gelation.![]()
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Affiliation(s)
- Hicham Abou Oualid
- Laboratoire de Matériaux, Catalyse & Valorisation des Ressources Naturelles
- URAC 24
- Faculté des Sciences et Techniques
- Université Hassan II
- Morocco
| | - Othmane Amadine
- MAScIR Foundation
- VARENA Center
- Rabat Design
- 10100 Rabat
- Morocco
| | | | - Karim Dânoun
- MAScIR Foundation
- VARENA Center
- Rabat Design
- 10100 Rabat
- Morocco
| | - Mohamed Zahouily
- Laboratoire de Matériaux, Catalyse & Valorisation des Ressources Naturelles
- URAC 24
- Faculté des Sciences et Techniques
- Université Hassan II
- Morocco
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25
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Baldino L, Cardea S, Reverchon E. Nanostructured chitosan-gelatin hybrid aerogels produced by supercritical gel drying. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24719] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lucia Baldino
- Department of Industrial Engineering; University of Salerno; Fisciano SA 84084 Italy
| | - Stefano Cardea
- Department of Industrial Engineering; University of Salerno; Fisciano SA 84084 Italy
| | - Ernesto Reverchon
- Department of Industrial Engineering; University of Salerno; Fisciano SA 84084 Italy
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26
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De Cicco F, Russo P, Reverchon E, García-González CA, Aquino RP, Del Gaudio P. Prilling and supercritical drying: A successful duo to produce core-shell polysaccharide aerogel beads for wound healing. Carbohydr Polym 2016; 147:482-489. [PMID: 27178955 DOI: 10.1016/j.carbpol.2016.04.031] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 03/11/2016] [Accepted: 04/07/2016] [Indexed: 01/15/2023]
Abstract
Bacterial infections often affect the wound, delaying healing and causing areas of necrosis. In this work, an aerogel in form of core-shell particles, able to prolong drug activity on wounds and to be easily removed was developed. Aerogel microcapsules consisted of a core made by amidated pectin hosting doxycycline, an antibiotic drug with a broad spectrum of action, and a shell consisting of high mannuronic content alginate. Particles were obtained by prilling using a coaxial nozzle for drop production and an ethanolic solution of CaCl2 as gelling promoter. The alcogels where dried using supercritical CO2. The influence of polysaccharides and drug concentrations on aerogel properties was evaluated. Spherical particles with high drug encapsulation efficiency (87%) correlated to alginate concentration in the processed liquid feeds were obtained. The release of the drug, mainly concentrated into the pectin core, was prolonged till 48h, and dependent on both drug/pectin ratio and alginate concentration.
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Affiliation(s)
- Felicetta De Cicco
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 132 I-84084 Fisciano SA, Italy
| | - Paola Russo
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 132 I-84084 Fisciano SA, Italy
| | - Ernesto Reverchon
- Department of Industrial Engineering, University of Salerno, via Giovanni Paolo II, 132 I-84084 Fisciano SA, Italy
| | - Carlos A García-González
- Department of Pharmacy and Pharmaceutical Technology, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Rita Patrizia Aquino
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 132 I-84084 Fisciano SA, Italy
| | - Pasquale Del Gaudio
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II, 132 I-84084 Fisciano SA, Italy.
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27
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Ivanovic J, Milovanovic S, Zizovic I. Utilization of supercritical CO2as a processing aid in setting functionality of starch-based materials. STARCH-STARKE 2016. [DOI: 10.1002/star.201500194] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Jasna Ivanovic
- Faculty of Technology and Metallurgy; University of Belgrade; Belgrade Serbia
| | - Stoja Milovanovic
- Faculty of Technology and Metallurgy; University of Belgrade; Belgrade Serbia
| | - Irena Zizovic
- Faculty of Technology and Metallurgy; University of Belgrade; Belgrade Serbia
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28
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Raman S, Gurikov P, Smirnova I. Hybrid alginate based aerogels by carbon dioxide induced gelation: Novel technique for multiple applications. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2015.05.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Design and In Vivo Anti-Inflammatory Effect of Ketoprofen Delayed Delivery Systems. J Pharm Sci 2015; 104:3451-8. [DOI: 10.1002/jps.24554] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 05/29/2015] [Indexed: 11/07/2022]
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30
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Baldino L, Sarno M, Cardea S, Irusta S, Ciambelli P, Santamaria J, Reverchon E. Formation of Cellulose Acetate–Graphene Oxide Nanocomposites by Supercritical CO2 Assisted Phase Inversion. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01452] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lucia Baldino
- Department
of Industrial Engineering, University of Salerno, Via Giovanni
Paolo II, 132, 84084 Fisciano (SA), Italy
| | - Maria Sarno
- Department
of Industrial Engineering, University of Salerno, Via Giovanni
Paolo II, 132, 84084 Fisciano (SA), Italy
- NANO_MATES,
Research Centre for Nanomaterials and Nanotechnology, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy
| | - Stefano Cardea
- Department
of Industrial Engineering, University of Salerno, Via Giovanni
Paolo II, 132, 84084 Fisciano (SA), Italy
| | - Silvia Irusta
- Nanoscience Institute of Aragon (INA) and Networking Biomedical Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 50018 Zaragoza, Spain
| | - Paolo Ciambelli
- Department
of Industrial Engineering, University of Salerno, Via Giovanni
Paolo II, 132, 84084 Fisciano (SA), Italy
- NANO_MATES,
Research Centre for Nanomaterials and Nanotechnology, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy
| | - Jesus Santamaria
- Nanoscience Institute of Aragon (INA) and Networking Biomedical Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 50018 Zaragoza, Spain
| | - Ernesto Reverchon
- Department
of Industrial Engineering, University of Salerno, Via Giovanni
Paolo II, 132, 84084 Fisciano (SA), Italy
- NANO_MATES,
Research Centre for Nanomaterials and Nanotechnology, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy
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31
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Baldino L, Concilio S, Cardea S, De Marco I, Reverchon E. Complete glutaraldehyde elimination during chitosan hydrogel drying by SC-CO2 processing. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2015.04.020] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Marin MA, Mallepally RR, McHugh MA. Silk fibroin aerogels for drug delivery applications. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.04.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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33
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Baldino L, Cardea S, De Marco I, Reverchon E. Chitosan scaffolds formation by a supercritical freeze extraction process. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.03.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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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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