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Naiel S, Dowdall N, Zhou Q, Ali P, Hayat A, Vierhout M, Wong EY, Couto R, Yépez B, Seifried B, Moquin P, Kolb MR, Ask K, Hoare T. Modulating pro-fibrotic macrophages using yeast beta-glucan microparticles prepared by Pressurized Gas eXpanded liquid (PGX) Technology®. Biomaterials 2025; 313:122816. [PMID: 39250864 DOI: 10.1016/j.biomaterials.2024.122816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 08/24/2024] [Accepted: 09/03/2024] [Indexed: 09/11/2024]
Abstract
Pro-fibrotic M2-like macrophages are widely implicated in the pathogenesis and progression of lung fibrosis due to their production of pro-fibrotic growth factors and cytokines. Yeast beta-glucan (YBG) microparticles have shown potential as immunomodulators that can convert macrophage polarization from a pro-fibrotic phenotype to an anti-fibrotic phenotype through the engagement of the Dectin-1 receptor. However, the processing conditions used to fabricate YBG microparticles can lead to unpredictable immunomodulatory effects. Herein, we report the use of Pressurized Gas eXpanded liquids (PGX) Technology® to fabricate YBG (PGX-YBG) microparticles with higher surface areas, lower densities, and smaller and more uniform size distributions compared to commercially available spray-dried YBGs. PGX-YBG is shown to activate Dectin-1 more efficiently in vitro while avoiding significant TLR 2/4 activation. Furthermore, PGX-YBG microparticles effectively modulate M2-like fibrosis-inducing murine and human macrophages into fibrosis-suppressing macrophages both in vitro as well as in ex vivo precision-cut murine lung slices, suggesting their potential utility as a therapeutic for addressing a broad spectrum of fibrotic end-point lung diseases.
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Affiliation(s)
- S Naiel
- Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, 50 Charlton Avenue East, L314-5, Hamilton, ON, L8N 4A6, Canada
| | - N Dowdall
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
| | - Q Zhou
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Center, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
| | - P Ali
- Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, 50 Charlton Avenue East, L314-5, Hamilton, ON, L8N 4A6, Canada
| | - A Hayat
- Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, 50 Charlton Avenue East, L314-5, Hamilton, ON, L8N 4A6, Canada
| | - M Vierhout
- Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, 50 Charlton Avenue East, L314-5, Hamilton, ON, L8N 4A6, Canada
| | - E Y Wong
- Ceapro Inc., 7824 51 Ave NW, Edmonton, AB, T6E 6W2, Canada
| | - R Couto
- Ceapro Inc., 7824 51 Ave NW, Edmonton, AB, T6E 6W2, Canada
| | - B Yépez
- Ceapro Inc., 7824 51 Ave NW, Edmonton, AB, T6E 6W2, Canada
| | - B Seifried
- Ceapro Inc., 7824 51 Ave NW, Edmonton, AB, T6E 6W2, Canada
| | - P Moquin
- Ceapro Inc., 7824 51 Ave NW, Edmonton, AB, T6E 6W2, Canada
| | - M R Kolb
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Center, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
| | - K Ask
- Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, 50 Charlton Avenue East, L314-5, Hamilton, ON, L8N 4A6, Canada.
| | - T Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada.
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2
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Jofre FM, Queiroz SDS, Sanchez DA, Arruda PV, Santos JCD, Felipe MDGDA. Biotechnological potential of yeast cell wall: An overview. Biotechnol Prog 2024:e3491. [PMID: 38934212 DOI: 10.1002/btpr.3491] [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: 03/12/2024] [Revised: 05/27/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024]
Abstract
The yeast cell wall is a complex structure whose main function is to protect the cell from physical and chemical damage, providing it with rigidity. It is composed of a matrix of covalently linked polysaccharides and proteins, including β-glucans, mannoproteins, and chitin, whose proportion can vary according to the yeast species and environmental conditions. The main components of the yeast cell wall have relevant properties that expand the possibilities of use in different industrial sectors, such as pharmaceutical, food, medical, veterinary, and cosmetic. Some applications include bioremediation, enzyme immobilization, animal feed, wine production, and hydrogel production. In the literature it is the description of the cell wall composition of model species like Saccharomyces cerevisiae and Candida albicans, however, it is important to know that this composition can vary according to the species or the culture medium conditions. Thus, understanding the structural composition of different species holds promise as an alternative to expanding the utilization of residual yeast from different bioprocesses. In the context of a circular economy, the conversion of residual yeast into valuable products is an attractive prospect for researchers aiming to develop sustainable technologies. This review provides an overview of yeast cell wall composition and its significance in biotechnological applications, considering prospects to increase the diversification of these compounds in industry.
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Affiliation(s)
- Fanny Machado Jofre
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Sarah de Souza Queiroz
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Diana Alva Sanchez
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Priscila Vaz Arruda
- Department of Bioprocess and Biotechnology Engineering, Federal University of Technology-Paraná (UTFPR), Toledo, Brazil
| | - Júlio César Dos Santos
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
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3
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Alkhalidi HM, Alahmadi AA, Rizg WY, Yahya EB, H P S AK, Mushtaq RY, Badr MY, Safhi AY, Hosny KM. Revolutionizing Cancer Treatment: Biopolymer-Based Aerogels as Smart Platforms for Targeted Drug Delivery. Macromol Rapid Commun 2024; 45:e2300687. [PMID: 38430068 DOI: 10.1002/marc.202300687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/15/2024] [Indexed: 03/03/2024]
Abstract
Cancer stands as a leading cause of global mortality, with chemotherapy being a pivotal treatment approach, either alone or in conjunction with other therapies. The primary goal of these therapies is to inhibit the growth of cancer cells specifically, while minimizing harm to healthy dividing cells. Conventional treatments, often causing patient discomfort due to side effects, have led researchers to explore innovative, targeted cancer cell therapies. Thus, biopolymer-based aerogels emerge as innovative platforms, showcasing unique properties that respond intelligently to diverse stimuli. This responsiveness enables precise control over the release of anticancer drugs, enhancing therapeutic outcomes. The significance of these aerogels lies in their ability to offer targeted drug delivery with increased efficacy, biocompatibility, and a high drug payload. In this comprehensive review, the author discuss the role of biopolymer-based aerogels as an emerging functionalized platforms in anticancer drug delivery. The review addresses the unique properties of biopolymer-based aerogels showing their smart behavior in responding to different stimuli including temperature, pH, magnetic and redox potential to control anticancer drug release. Finally, the review discusses the application of different biopolymer-based aerogel in delivering different anticancer drugs and also discusses the potential of these platforms in gene delivery applications.
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Affiliation(s)
- Hala M Alkhalidi
- Department of Clinical Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Amerh Aiad Alahmadi
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Waleed Y Rizg
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
- Center of Innovation in Personalized Medicine, 3D Bioprinting Unit, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Esam Bashir Yahya
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
- Green Biopolymer, Coatings and Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
| | - Abdul Khalil H P S
- Green Biopolymer, Coatings and Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
| | - Rayan Y Mushtaq
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Moutaz Y Badr
- Department of Pharmaceutical Sciences, College of Pharmacy, Umm Al-Qura University, Makkah, 24381, Saudi Arabia
| | - Awaji Y Safhi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Khaled M Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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4
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Umego EC, Barry-Ryan C. Review of the valorization initiatives of brewing and distilling by-products. Crit Rev Food Sci Nutr 2023; 64:8231-8247. [PMID: 37039081 DOI: 10.1080/10408398.2023.2198012] [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] [Indexed: 04/12/2023]
Abstract
Beer and spirits are two of the most consumed alcoholic beverages in the world, and their production generates enormous amounts of by-product materials. This ranges from spent grain, spent yeast, spent kieselguhr, trub, carbon dioxide, pot ale, and distilled gin spent botanicals. The present circular economy dynamics and increased awareness on resource use for enhanced sustainable production practices have driven changes and innovations in the management practices and utilization of these by-products. These include food product development, functional food applications, biotechnological applications, and bioactive compounds extraction. As a result, the brewing and distilling sector of the food and drinks industry is beginning to see a shift from conventional uses of by-products such as animal feed to more innovative applications. This review paper therefore explored some of these valorization initiatives and the current state of the art.
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Affiliation(s)
- Ekene Christopher Umego
- School of Food Science and Environmental Health & Environmental Sustainability and Health Institute (ESHI), Technological University Dublin City Campus, Dublin 7, Ireland
| | - Catherine Barry-Ryan
- School of Food Science and Environmental Health & Environmental Sustainability and Health Institute (ESHI), Technological University Dublin City Campus, Dublin 7, Ireland
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5
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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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6
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Validation of a compartmental model to predict drug release from porous structures produced by ScCO 2 techniques. Eur J Pharm Sci 2023; 180:106325. [PMID: 36351487 DOI: 10.1016/j.ejps.2022.106325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
A global release model is proposed to study the drug release from porous materials for pharmaceutical applications. This model is defined by implementing a compartmental model where the release profile could be explained as the combination of mass transfer phenomena through three compartments as well as a desorption process or dissolution process from the support. This model was validated with five different systems produced with supercritical CO2 (aerogels, membranes, and fibers), showing different release processes. Numerical results indicate that this compartmental approach can be useful to determine adsorption and desorption constants as well as mass transfer resistances within the material. Likewise, this model can predict lag phases and imbibition phenomena. Therefore, the development of compartmental models can be an alternative to traditional models to successfully predict the drug profile of porous materials, achieving a complete understanding of the involved phenomena regardless of the material characteristics.
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Selvasekaran P, Chidambaram R. Bioaerogels as food materials: A state-of-the-art on production and application in micronutrient fortification and active packaging of foods. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Supercritical CO2-assisted Impregnation/Deposition of Polymeric Materials With Pharmaceutical, Nutraceutical, and Biomedical Applications: A Review (2015-2021). J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Supercritical Fluid Technologies for the Incorporation of Synthetic and Natural Active Compounds into Materials for Drug Formulation and Delivery. Pharmaceutics 2022; 14:pharmaceutics14081670. [PMID: 36015296 PMCID: PMC9413081 DOI: 10.3390/pharmaceutics14081670] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 11/25/2022] Open
Abstract
Various active compounds isolated from natural sources exhibit remarkable benefits, making them attractive for pharmaceutical and biomedical applications, such as antioxidant, antimicrobial, and anti-inflammatory activities, which contribute to the treatment of cardiovascular diseases, neurodegenerative disorders, various types of cancer, diabetes, and obesity. However, their major drawbacks are their reactivity, instability, relatively poor water solubility, and consequently low bioavailability. Synthetic drugs often face similar challenges associated with inadequate solubility or burst release in gastrointestinal media, despite being otherwise a safe and effective option for the treatment of numerous diseases. Therefore, drug-eluting pharmaceutical formulations have been of great importance over the years in efforts to improve the bioavailability of active compounds by increasing their solubility and achieving their controlled release in body media. This review highlights the success of the fabrication of micro- and nanoformulations using environmentally friendly supercritical fluid technologies for the processing and incorporation of active compounds. Several novel approaches, namely micronization to produce micro- and nano-sized particles, supercritical drying to produce aerogels, supercritical foaming, and supercritical solvent impregnation, are described in detail, along with the currently available drug delivery data for these formulations.
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10
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Bagheri H, Notej B, Shasavari S, Hashemipour H. Supercritical carbon dioxide utilization in drug delivery:Experimental study and modeling of paracetamol solubility. Eur J Pharm Sci 2022; 177:106273. [DOI: 10.1016/j.ejps.2022.106273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 07/28/2022] [Accepted: 08/04/2022] [Indexed: 11/25/2022]
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Abstract
Carriers are protective transporters of drugs to target cells, facilitating therapy under each points of view, such as fast healing, reducing infective phenomena, and curing illnesses while avoiding side effects. Over the last 60 years, several scientists have studied drug carrier properties, trying to adapt them to the release environment. Drug/Carrier interaction phenomena have been deeply studied, and the release kinetics have been modeled according to the occurring phenomena involved in the system. It is not easy to define models’ advantages and disadvantages, since each of them may fit in a specific situation, considering material interactions, diffusion and erosion phenomena, and, no less important, the behavior of receiving medium. This work represents a critical review on main mathematical models concerning their dependency on physical, chemical, empirical, or semi-empirical variables. A quantitative representation of release profiles has been shown for the most representative models. A final critical comment on the applicability of these models has been presented at the end. A mathematical approach to this topic may help students and researchers approach the wide panorama of models that exist in literature and have been optimized over time. This models list could be of practical inspiration for the development of researchers’ own new models or for the application of proper modifications, with the introduction of new variable dependency.
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13
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Features and Methods of Making Nanofibers by Electrospinning, Phase Separation and Self-assembly. JORJANI BIOMEDICINE JOURNAL 2022. [DOI: 10.52547/jorjanibiomedj.10.1.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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14
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Zhang Y, Li Y, Xia Q, Liu L, Wu Z, Pan D. Recent advances of cereal β-glucan on immunity with gut microbiota regulation functions and its intelligent gelling application. Crit Rev Food Sci Nutr 2021:1-17. [PMID: 34748438 DOI: 10.1080/10408398.2021.1995842] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
β-glucan from cereals such as wheat, barley, oats and rye are a water-soluble dietary fiber, which are composed of repeating (1→4)-β-bond β-D-glucopyranosyl units and a single (1→3)-β-D-bond separated unit. β-glucan has a series of physicochemical properties (such as viscosity, gelling properties, solubility, etc.), which can be used as a food gel and fat substitute. Its structure endows the healthy functions, including anti-oxidative stress, lowering blood glucose and serum cholesterol, regulating metabolic syndrome and exerting gut immunity via gut microbiota. Due to their unique structural properties and efficacy, cereal β-glucan are not only applied in food substrates in the food industry, but also in food coatings and packaging. This article reviewed the applications of cereal β-glucan in hydrogels, aerogels, intelligent packaging systems and targeted delivery carriers in recent years. Cereal β-glucan in edible film and gel packaging applications are becoming more diversified and intelligent in recent years. Those advances provide a potential solution based on cereal β-glucan as biodegradable substances for immune regulation delivery system and intelligent gelling material in the biomedicine field.
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Affiliation(s)
- Yunzhen Zhang
- College of Food and Pharmaceutical Sciences, Deep Processing Technology Key Laboratory of Zhejiang Province Animal Protein Food, Ningbo University, Ningbo, Zhejiang Province, PR China
| | - Yueqin Li
- College of Food and Pharmaceutical Sciences, Deep Processing Technology Key Laboratory of Zhejiang Province Animal Protein Food, Ningbo University, Ningbo, Zhejiang Province, PR China
| | - Qiang Xia
- College of Food and Pharmaceutical Sciences, Deep Processing Technology Key Laboratory of Zhejiang Province Animal Protein Food, Ningbo University, Ningbo, Zhejiang Province, PR China
| | - Lianliang Liu
- College of Food and Pharmaceutical Sciences, Deep Processing Technology Key Laboratory of Zhejiang Province Animal Protein Food, Ningbo University, Ningbo, Zhejiang Province, PR China
| | - Zufang Wu
- College of Food and Pharmaceutical Sciences, Deep Processing Technology Key Laboratory of Zhejiang Province Animal Protein Food, Ningbo University, Ningbo, Zhejiang Province, PR China
| | - Daodong Pan
- College of Food and Pharmaceutical Sciences, Deep Processing Technology Key Laboratory of Zhejiang Province Animal Protein Food, Ningbo University, Ningbo, Zhejiang Province, PR China
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Coutinho IT, Maia-Obi LP, Champeau M. Aspirin-Loaded Polymeric Films for Drug Delivery Systems: Comparison between Soaking and Supercritical CO 2 Impregnation. Pharmaceutics 2021; 13:824. [PMID: 34199551 PMCID: PMC8229088 DOI: 10.3390/pharmaceutics13060824] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 12/11/2022] Open
Abstract
Polymeric implants loaded with drugs can overcome the disadvantages of oral or injection drug administration and deliver the drug locally. Several methods can load drugs into polymers. Herein, soaking and supercritical CO2 (scCO2) impregnation methods were employed to load aspirin into poly(l-lactic acid) (PLLA) and linear low-density polyethylene (LLDPE). Higher drug loadings (DL) were achieved with scCO2 impregnation compared to soaking and in a shorter time (3.4 ± 0.8 vs. 1.3 ± 0.4% for PLLA; and 0.4 ± 0.5 vs. 0.6 ± 0.5% for LLDPE), due to the higher swelling capacity of CO2. The higher affinity of aspirin explained the higher DL in PLLA than in LLDPE. Residual solvent was detected in LLDPE prepared by soaking, but within the FDA concentration limits. The solvents used in both methods acted as plasticizers and increased PLLA crystallinity. PLLA impregnated with aspirin exhibited faster hydrolysis in vitro due to the catalytic effect of aspirin. Finally, PLLA impregnated by soaking showed a burst release because of aspirin crystals on the PLLA surface, and released 100% of aspirin within 60 days, whereas the PLLA prepared with scCO2 released 60% after 74 days by diffusion and PLLA erosion. Hence, the scCO2 impregnation method is adequate for higher aspirin loadings and prolonged drug release.
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Affiliation(s)
| | | | - Mathilde Champeau
- Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Santo Andre 09210-580, Brazil; (I.T.C.); (L.P.M.-O.)
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Muhammad A, Lee D, Shin Y, Park J. Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook. Polymers (Basel) 2021; 13:1347. [PMID: 33924110 PMCID: PMC8074296 DOI: 10.3390/polym13081347] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 01/07/2023] Open
Abstract
Porous polysaccharides have recently attracted attention due to their porosity, abundance, and excellent properties such as sustainability and biocompatibility, thereby resulting in their numerous applications. Recent years have seen a rise in the number of studies on the utilization of polysaccharides such as cellulose, chitosan, chitin, and starch as aerogels due to their unique performance for the fabrication of porous structures. The present review explores recent progress in porous polysaccharides, particularly cellulose and chitosan, including their synthesis, application, and future outlook. Since the synthetic process is an important aspect of aerogel formation, particularly during the drying step, the process is reviewed in some detail, and a comparison is drawn between the supercritical CO2 and freeze drying processes in order to understand the aerogel formation of porous polysaccharides. Finally, the current applications of polysaccharide aerogels in drug delivery, wastewater, wound dressing, and air filtration are explored, and the limitations and outlook of the porous aerogels are discussed with respect to their future commercialization.
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Affiliation(s)
| | | | | | - Juhyun Park
- Department of Intelligent Energy and Industry, School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea; (A.M.); (D.L.); (Y.S.)
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García-González CA, Sosnik A, Kalmár J, De Marco I, Erkey C, Concheiro A, Alvarez-Lorenzo C. Aerogels in drug delivery: From design to application. J Control Release 2021; 332:40-63. [PMID: 33600880 DOI: 10.1016/j.jconrel.2021.02.012] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 12/28/2022]
Abstract
Aerogels are the lightest processed solid materials on Earth and with the largest empty volume fraction in their structure. Composition versatility, modularity, and feasibility of industrial scale manufacturing are behind the fast emergence of aerogels in the drug delivery field. Compared to other 3D materials, the high porosity (interconnected mesopores) and high specific surface area of aerogels may allow faster loading of small-molecule drugs, less constrained access to inner regions of the matrix, and more efficient interactions of the biological milieu with the polymer matrix. Processing in supercritical CO2 medium for both aerogel production (drying) and drug loading (impregnation) has remarkable advantages such as absence of an oxidizing environment, clean manufacture, and easiness for the scale-up under good manufacturing practices. The aerogel solid skeleton dictates the chemical affinity to the different drugs, which in turn determines the loading efficiency and the release pattern. Aerogels can be used to increase the solubility of BCS Class II and IV drugs because the drug can be deposited in amorphous state onto the large surface area of the skeleton, which facilitates a rapid contact with the body fluids, dissolution, and release. Conversely, tuning the aerogel structure by functionalization with drug-binding moieties or stimuli-responsive components, application of coatings and incorporation of drug-loaded aerogels into other matrices may enable site-specific, stimuli-responsive, or prolonged drug release. The present review deals with last decade advances in aerogels for drug delivery. An special focus is paid first on the loading efficiency of active ingredients and release kinetics under biorelevant conditions. Subsequent sections deal with aerogels intended to address specific therapeutic demands. In addition to oral delivery, the physical properties of the aerogels appear to be very advantageous for mucosal administration routes, such as pulmonary, nasal, or transdermal. A specific section devoted to recent achievements in gene therapy and theranostics is also included. In the last section, scale up strategies and life cycle assessment are comprehensively addressed.
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Affiliation(s)
- Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - József Kalmár
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Iolanda De Marco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Can Erkey
- Chemical and Biological Engineering Department, Koç University, 34450 Sarıyer, Istanbul, Turkey
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Abstract
The repurposing of by-products and the reduction of waste from food processing streams is an ever-increasing area of interest. Brewer’s spent yeast (BSY) is a prevalent by-product of the brewing industry. The spent yeast cells are removed at the end of the bulk fermentation. A small amount of it is used to start the next batch of fermentation; however, the majority of the spent yeast is discarded. This discarded yeast is high in nutrients, in particular proteins, vitamins and minerals, as well as containing functional and biologically active compounds such as polyphenols, antioxidants, β-glucans and mannoproteins. At present, BSY is mainly used in animal feed as a cheap and readily available source of protein. This review explores alternative, value-added applications for brewer’s spent yeast including nutritional ingredients, functional food additives as well as non-food applications. A major challenge in the utilization of BSY in food for human consumption is the high level of RNA. An excess of RNA in the diet can lead to an increase in uric acid in the bloodstream, potentially causing painful health conditions like gout. This issue can be overcome by RNA degradation and removal via additional treatment, namely heat treatment and enzymatic treatment. There is potential for the use of BSY ingredients in various food applications, including meat substitutes, bakery products and savory snacks.
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MFC/NFC-Based Foam/Aerogel for Production of Porous Materials: Preparation, Properties and Applications. MATERIALS 2020; 13:ma13235568. [PMID: 33297365 PMCID: PMC7729816 DOI: 10.3390/ma13235568] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/28/2020] [Accepted: 12/03/2020] [Indexed: 11/17/2022]
Abstract
Nanofibrillated cellulose and microfibrillated cellulose are potential raw materials separated from plant fibers with a high aspect ratio and excellent mechanical properties, which can be applied in various fields (packaging, medicine, etc.). They have unique advantages in the preparation of aerogels and foams, and have attracted widespread attention in recent years. Cellulose-based porous materials have good biodegradability and biocompatibility, while high porosity and high specific surface area endow them with strong mechanical properties and liquid retention performance, which can be used in wall construction, sewage treatment and other fields. At present, the preparation method of this material has been widely reported, however, due to various process problems, the actual production has not been realized. In this paper, we summarize the existing technical problems and main solutions; in the meantime, two stable systems and several drying processes are described, and the application potential of cellulose-based porous materials in the future is described, which provides a reference for subsequent research.
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Ma H, Huang Q, Ren J, Zheng Z, Xiao Y. Structure characteristics, solution properties and morphology of oxidized yeast β-glucans derived from controlled TEMPO-mediated oxidation. Carbohydr Polym 2020; 250:116924. [DOI: 10.1016/j.carbpol.2020.116924] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 07/26/2020] [Accepted: 08/07/2020] [Indexed: 11/26/2022]
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21
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Comparative Study of Graphene Oxide-Gelatin Aerogel Synthesis: Chemical Characterization, Morphologies and Functional Properties. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01770-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Tabernero A, Cardea S. Microbial Exopolysaccharides as Drug Carriers. Polymers (Basel) 2020; 12:E2142. [PMID: 32961830 PMCID: PMC7570138 DOI: 10.3390/polym12092142] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/17/2020] [Accepted: 09/17/2020] [Indexed: 12/18/2022] Open
Abstract
Microbial exopolysaccharides are peculiar polymers that are produced by living organisms and protect them against environmental factors. These polymers are industrially recovered from the medium culture after performing a fermentative process. These materials are biocompatible and biodegradable, possessing specific and beneficial properties for biomedical drug delivery systems. They can have antitumor activity, they can produce hydrogels with different characteristics due to their molecular structure and functional groups, and they can even produce nanoparticles via a self-assembly phenomenon. This review studies the potential use of exopolysaccharides as carriers for drug delivery systems, covering their versatility and their vast possibilities to produce particles, fibers, scaffolds, hydrogels, and aerogels with different strategies and methodologies. Moreover, the main properties of exopolysaccharides are explained, providing information to achieve an adequate carrier selection depending on the final application.
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Affiliation(s)
- Antonio Tabernero
- Department of Chemical Engineering, University of Salamanca, Plaza los Caídos s/n, 37008 Salamanca, Spain;
| | - Stefano Cardea
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
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Abdul Khalil H, Adnan A, Yahya EB, Olaiya N, Safrida S, Hossain MS, Balakrishnan V, Gopakumar DA, Abdullah C, Oyekanmi A, Pasquini D. A Review on Plant Cellulose Nanofibre-Based Aerogels for Biomedical Applications. Polymers (Basel) 2020; 12:E1759. [PMID: 32781602 PMCID: PMC7465206 DOI: 10.3390/polym12081759] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 01/18/2023] Open
Abstract
Cellulose nanomaterials from plant fibre provide various potential applications (i.e., biomedical, automotive, packaging, etc.). The biomedical application of nanocellulose isolated from plant fibre, which is a carbohydrate-based source, is very viable in the 21st century. The essential characteristics of plant fibre-based nanocellulose, which include its molecular, tensile and mechanical properties, as well as its biodegradability potential, have been widely explored for functional materials in the preparation of aerogel. Plant cellulose nano fibre (CNF)-based aerogels are novel functional materials that have attracted remarkable interest. In recent years, CNF aerogel has been extensively used in the biomedical field due to its biocompatibility, renewability and biodegradability. The effective surface area of CNFs influences broad applications in biological and medical studies such as sustainable antibiotic delivery for wound healing, the preparation of scaffolds for tissue cultures, the development of drug delivery systems, biosensing and an antimicrobial film for wound healing. Many researchers have a growing interest in using CNF-based aerogels in the mentioned applications. The application of cellulose-based materials is widely reported in the literature. However, only a few studies discuss the potential of cellulose nanofibre aerogel in detail. The potential applications of CNF aerogel include composites, organic-inorganic hybrids, gels, foams, aerogels/xerogels, coatings and nano-paper, bioactive and wound dressing materials and bioconversion. The potential applications of CNF have rarely been a subject of extensive review. Thus, extensive studies to develop materials with cheaper and better properties, high prospects and effectiveness for many applications are the focus of the present work. The present review focuses on the evolution of aerogels via characterisation studies on the isolation of CNF-based aerogels. The study concludes with a description of the potential and challenges of developing sustainable materials for biomedical applications.
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Affiliation(s)
- H.P.S. Abdul Khalil
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia; (E.B.Y.); (M.S.H.); (D.A.G.); (C.K.A.); (A.A.O.)
| | - A.S. Adnan
- Management Science University Medical Centre, University Drive, Off Persiaran Olahraga, Section 13, Shah Alam Selangor 40100, Malaysia
| | - Esam Bashir Yahya
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia; (E.B.Y.); (M.S.H.); (D.A.G.); (C.K.A.); (A.A.O.)
| | - N.G. Olaiya
- Department of Industrial and Production Engineering, Federal University of Technology, Akure 340271, Nigeria;
| | - Safrida Safrida
- Department of Biology Education, Faculty of Teacher Training and Education, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia;
| | - Md. Sohrab Hossain
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia; (E.B.Y.); (M.S.H.); (D.A.G.); (C.K.A.); (A.A.O.)
| | - Venugopal Balakrishnan
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia;
| | - Deepu A. Gopakumar
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia; (E.B.Y.); (M.S.H.); (D.A.G.); (C.K.A.); (A.A.O.)
| | - C.K. Abdullah
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia; (E.B.Y.); (M.S.H.); (D.A.G.); (C.K.A.); (A.A.O.)
| | - A.A. Oyekanmi
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia; (E.B.Y.); (M.S.H.); (D.A.G.); (C.K.A.); (A.A.O.)
| | - Daniel Pasquini
- Chemistry Institute, Federal University of Uberlandia-UFU, Campus Santa Monica-Bloco1D-CP 593, Uberlandia 38400-902, Brazil;
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Tabernero A, Cardea S. Supercritical carbon dioxide techniques for processing microbial exopolysaccharides used in biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110940. [PMID: 32409086 DOI: 10.1016/j.msec.2020.110940] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 03/24/2020] [Accepted: 04/06/2020] [Indexed: 12/14/2022]
Abstract
Microbial exopolysaccharides are polymers that show a great potential for biomedical applications, such as tissue engineering applications and drug delivery, due to their biocompatibility, biodegradability and their gelling properties. These polysaccharides are obtained from a microorganism culture with a relatively straightforward downstream process thanks to their extracellular character, and can be processed to obtain aerogels, fibers and micro- or nano-particles with conventional techniques. However, these techniques present several disadvantages in that they involve time-consuming processes and the use of toxic solvents. Supercritical carbon dioxide techniques can overcome these drawbacks, but their use for processing microbial exopolysaccharides is not extended in the scientific community. This review describes the most frequently used exopolysaccharides in biomedical applications and how they can be obtained, as well as the different supercritical carbon dioxide techniques that can be used for processing them and their challenges. Specifically, high pressure shows a great potential to process and sterilize exopolysaccharide biomaterials for biomedical applications (e.g. tissue engineering or drug delivery systems) in spite of the disadvantage concerning the hydrophilicity of this type of polymers.
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Affiliation(s)
- Antonio Tabernero
- Department of Chemical Engineering, University of Salamanca, Plaza los Caídos s/n, 37008 Salamanca, SA, Spain
| | - Stefano Cardea
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
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Zheng L, Zhang S, Ying Z, Liu J, Zhou Y, Chen F. Engineering of Aerogel-Based Biomaterials for Biomedical Applications. Int J Nanomedicine 2020; 15:2363-2378. [PMID: 32308388 PMCID: PMC7138623 DOI: 10.2147/ijn.s238005] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 02/25/2020] [Indexed: 12/22/2022] Open
Abstract
Biomaterials with porous structure and high surface area attract growing interest in biomedical research and applications. Aerogel-based biomaterials, as highly porous materials that are made from different sources of macromolecules, inorganic materials, and composites, mimic the structures of the biological extracellular matrix (ECM), which is a three-dimensional network of natural macromolecules (e.g., collagen and glycoproteins), and provide structural support and exert biochemical effects to surrounding cells in tissues. In recent years, the higher requirements on biomaterials significantly promote the design and development of aerogel-based biomaterials with high biocompatibility and biological activity. These biomaterials with multilevel hierarchical structures display excellent biological functions by promoting cell adhesion, proliferation, and differentiation, which are critical for biomedical applications. This review highlights and discusses the recent progress in the preparation of aerogel-based biomaterials and their biomedical applications, including wound healing, bone regeneration, and drug delivery. Moreover, the current review provides different strategies for modulating the biological performance of aerogel-based biomaterials and further sheds light on the current status of these materials in biomedical research.
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Affiliation(s)
- Longpo Zheng
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai200072, People’s Republic of China
| | - Shaodi Zhang
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai200072, People’s Republic of China
| | - Zhengran Ying
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai200072, People’s Republic of China
| | - Junjian Liu
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai200072, People’s Republic of China
| | - Yinghong Zhou
- The Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD4059, Australia
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou510140, People’s Republic of China
- The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology (QUT), Brisbane, QLD4000, Australia
| | - Feng Chen
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai200072, People’s Republic of China
- The Australia-China Centre for Tissue Engineering and Regenerative Medicine (ACCTERM), Queensland University of Technology (QUT), Brisbane, QLD4000, Australia
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26
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Kleemann C, Schuster R, Rosenecker E, Selmer I, Smirnova I, Kulozik U. In-vitro-digestion and swelling kinetics of whey protein, egg white protein and sodium caseinate aerogels. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105534] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Franco P, De Marco I. Supercritical CO2 adsorption of non-steroidal anti-inflammatory drugs into biopolymer aerogels. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2019.11.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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28
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Role of rheological properties on physical chitosan aerogels obtained by supercritical drying. Carbohydr Polym 2020; 233:115850. [PMID: 32059901 DOI: 10.1016/j.carbpol.2020.115850] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/01/2020] [Accepted: 01/08/2020] [Indexed: 12/16/2022]
Abstract
Chitosan aerogels were obtained after using supercritical carbon dioxide to dry physical hydrogels, studying the effect of the rheological behavior of hydrogels and solutions on the final aerogels properties. An increase on the solutions pseudoplasticity increased the subsequent hydrogels physical entanglement, without showing a significant effect on aerogels morphology (nanoporous) and textural properties (pores of about 10 nm). However, an increase of hydrogel physical entanglement promoted the formation of aerogels with a higher compressive strength (from 0.2 to 0.80 MPa) and higher thermal decomposition range, while decreasing the porosity (from 90 % to 94 %). Aerogels stress-strain responses were also successfully fitted using a hyperelastic equation with three adjustable parameters (Yeoh), showing that this type of models must be taken into account when large stresses are studied.
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29
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Wu K, Liu X, Li Z, Jiao Y, Zhou C. Fabrication of chitosan/graphene oxide composite aerogel microspheres with high bilirubin removal performance. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 106:110162. [DOI: 10.1016/j.msec.2019.110162] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/08/2019] [Accepted: 09/03/2019] [Indexed: 12/19/2022]
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30
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Preparation and characterization of cellulose acetate-Laponite® composite membranes produced by supercritical phase inversion. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2019.104651] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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31
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The advances of polysaccharide-based aerogels: Preparation and potential application. Carbohydr Polym 2019; 226:115242. [DOI: 10.1016/j.carbpol.2019.115242] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 08/13/2019] [Accepted: 08/22/2019] [Indexed: 12/12/2022]
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32
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Tabernero A, Baldino L, González-Garcinuño Á, Cardea S, del Valle EMM, Reverchon E. Supercritical CO2 assisted formation of composite membranes containing an amphiphilic fructose-based polymer. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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33
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34
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Tsai WC, Wang Y. Progress of supercritical fluid technology in polymerization and its applications in biomedical engineering. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101161] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Karp S, Wyrwisz J, Kurek MA. Comparative analysis of the physical properties of o/w emulsions stabilised by cereal β-glucan and other stabilisers. Int J Biol Macromol 2019; 132:236-243. [DOI: 10.1016/j.ijbiomac.2019.03.212] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 12/24/2022]
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36
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Barrios E, Fox D, Li Sip YY, Catarata R, Calderon JE, Azim N, Afrin S, Zhang Z, Zhai L. Nanomaterials in Advanced, High-Performance Aerogel Composites: A Review. Polymers (Basel) 2019; 11:E726. [PMID: 31010008 PMCID: PMC6523290 DOI: 10.3390/polym11040726] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 04/16/2019] [Accepted: 04/16/2019] [Indexed: 12/25/2022] Open
Abstract
Aerogels are one of the most interesting materials of the 21st century owing to their high porosity, low density, and large available surface area. Historically, aerogels have been used for highly efficient insulation and niche applications, such as interstellar particle capture. Recently, aerogels have made their way into the composite universe. By coupling nanomaterial with a variety of matrix materials, lightweight, high-performance composite aerogels have been developed for applications ranging from lithium-ion batteries to tissue engineering materials. In this paper, the current status of aerogel composites based on nanomaterials is reviewed and their application in environmental remediation, energy storage, controlled drug delivery, tissue engineering, and biosensing are discussed.
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Affiliation(s)
- Elizabeth Barrios
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32816, USA.
| | - David Fox
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA.
| | - Yuen Yee Li Sip
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
| | - Ruginn Catarata
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
| | - Jean E Calderon
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
| | - Nilab Azim
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA.
| | - Sajia Afrin
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA.
| | - Zeyang Zhang
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA.
| | - Lei Zhai
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA.
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32816, USA.
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA.
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37
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A Phenomenological Approach to Study Mechanical Properties of Polymeric Porous Structures Processed Using Supercritical CO₂. Polymers (Basel) 2019; 11:polym11030485. [PMID: 30960469 PMCID: PMC6473646 DOI: 10.3390/polym11030485] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/06/2019] [Accepted: 03/11/2019] [Indexed: 01/01/2023] Open
Abstract
This work proposes a modeling of the mechanical properties of porous polymers processed by scCO2, using a phenomenological approach. Tensile and compression tests of alginate/gelatin and cellulose acetate/graphene oxide were modeled using three hyperelastic equations, derived from strain energy functions. The proposed hyperelastic equations provide a fair good fit for mechanical behavior of the nanofibrous system alginate/gelatin (deviations lower than 10%); whereas, due to the presence of the solid in the polymer network, a four-parameter model must be used to fit the composite cellulose acetate/graphene oxide behavior. Larger deviations from the experimental data were observed for the system cellulose acetate/graphene oxide because of its microporous structure. A finite element method was, then, proposed to model both systems; it allowed a realistic description of observable displacements and effective stresses. The results indicate that materials processed using scCO2, when submitted to large stresses, do not obey Hooke´s law and must be considered as hyperelastic.
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38
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Monteagudo-Olivan R, Cocero MJ, Coronas J, Rodríguez-Rojo S. Supercritical CO2 encapsulation of bioactive molecules in carboxylate based MOFs. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2018.12.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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39
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Zheng Z, Huang Q, Luo X, Xiao Y, Cai W, Ma H. Effects and mechanisms of ultrasound- and alkali-assisted enzymolysis on production of water-soluble yeast β-glucan. BIORESOURCE TECHNOLOGY 2019; 273:394-403. [PMID: 30458409 DOI: 10.1016/j.biortech.2018.11.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/07/2018] [Accepted: 11/08/2018] [Indexed: 05/15/2023]
Abstract
This study investigated the effects and related mechanisms of ultrasound- and alkali-assisted enzymolysis on production of water-soluble yeast β-glucan (WSYG). Results indicated that ultrasound and alkali pretreatments reduced the particle size of yeast β-glucan (YG) from 8.80 μm to 1.77 and 7.19 μm, respectively. Ultrasound-induced cavitation disrupted YG aggregates to a coarse appearance and exposed internal structure. Alkali penetrated into YG particles and broke the YG aggregates into a flake-like morphology by cleaving the linkages within YG chains. Both pretreatments facilitated enzymolysis by enlarging the YG surface area and increased the WSYG yield to 32.3% and 36.2%, respectively. Meanwhile, the purity of WSYG reached 98.8% after zymoprotein removal by DEAE-Sepharose fast flow column. This work not only provides a green method for producing high-purity and high-yield WSYG, but also reveals the mechanisms of ultrasound and alkali pretreatments for improving enzymolysis efficiency by loosening the YG structure and increasing the surface area.
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Affiliation(s)
- Zhaomin Zheng
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qilin Huang
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaogang Luo
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, Hubei, China
| | - Yidong Xiao
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenfei Cai
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Huiyu Ma
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
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40
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Sabu C, Mufeedha P, Pramod K. Yeast-inspired drug delivery: biotechnology meets bioengineering and synthetic biology. Expert Opin Drug Deliv 2018; 16:27-41. [DOI: 10.1080/17425247.2019.1551874] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Chinnu Sabu
- College of Pharmaceutical Sciences, Govt. Medical College, Kozhikode, India
| | - Panakkal Mufeedha
- College of Pharmaceutical Sciences, Govt. Medical College, Kozhikode, India
| | - Kannissery Pramod
- College of Pharmaceutical Sciences, Govt. Medical College, Kozhikode, India
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41
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Supercritical assisted process for the efficient production of liposomes containing antibiotics for ocular delivery. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.04.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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