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Croitoru GA, Pîrvulescu DC, Niculescu AG, Rădulescu M, Grumezescu AM, Nicolae CL. Advancements in Aerogel Technology for Antimicrobial Therapy: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1110. [PMID: 38998715 DOI: 10.3390/nano14131110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 07/14/2024]
Abstract
This paper explores the latest advancements in aerogel technology for antimicrobial therapy, revealing their interesting capacity that could improve the current medical approaches for antimicrobial treatments. Aerogels are attractive matrices because they can have an antimicrobial effect on their own, but they can also provide efficient delivery of antimicrobial compounds. Their interesting properties, such as high porosity, ultra-lightweight, and large surface area, make them suitable for such applications. The fundamentals of aerogels and mechanisms of action are discussed. The paper also highlights aerogels' importance in addressing current pressing challenges related to infection management, like the limited drug delivery alternatives and growing resistance to antimicrobial agents. It also covers the potential applications of aerogels in antimicrobial therapy and their possible limitations.
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Affiliation(s)
- George-Alexandru Croitoru
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Diana-Cristina Pîrvulescu
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | - Adelina-Gabriela Niculescu
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
- Research Institute of the University of Bucharest-ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Marius Rădulescu
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | - Alexandru Mihai Grumezescu
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
- Research Institute of the University of Bucharest-ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Carmen-Larisa Nicolae
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
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2
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Tavares C, Vieira T, Silva JC, Borges JPMR, Lança MC. Bioactive Hydroxyapatite Aerogels with Piezoelectric Particles. Biomimetics (Basel) 2024; 9:143. [PMID: 38534828 DOI: 10.3390/biomimetics9030143] [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: 11/21/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/28/2024] Open
Abstract
Open-cell foams based on hydroxyapatite (HAp) can mimic the extracellular matrix (ECM) to better replace damaged hard tissues and assist in their regeneration processes. Aerogels of HAp nanowires (NW) with barium titanate (BT) particles were produced and characterized regarding their physical and chemical properties, bioactivity, and in vitro cytotoxicity. Considering the role of piezoelectricity (mainly due to collagen) and surface charges in bone remodeling, all BT particles, of size 280 nm and 2 and 3 µm, contained BaTiO3 in their piezoelectric tetragonal phase. The synthesized nanowires were verified to be AB-type carbonated hydroxyapatite. The aerogels showed high porosity and relatively homogeneous distribution of the BT particles. Barium titanate proved to be non-cytotoxic while all the aerogels produced were cytotoxic for an extract concentration of 1 mg/mL but became non-cytotoxic at concentrations of 0.5 mg/mL and below. It is possible that these results were affected by the higher surface area and quicker dissolution rate of the aerogels. In the bioactivity assays, SEM/EDS, it was not easy to differentiate between the apatite deposition and the surface of the HAp wires. However, a quantitative EDS analysis shows a possible CaP deposition/dissolution cycle taking place.
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Affiliation(s)
- Catarina Tavares
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Tânia Vieira
- CENIMAT|i3N, Department of Physics, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Jorge C Silva
- CENIMAT|i3N, Department of Physics, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - João P M R Borges
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - M Carmo Lança
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
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Tibourtine F, Canceill T, Marfoglia A, Lavalle P, Gibot L, Pilloux L, Aubry C, Medemblik C, Goudouneche D, Dupret-Bories A, Cazalbou S. Advanced Platelet Lysate Aerogels: Biomaterials for Regenerative Applications. J Funct Biomater 2024; 15:49. [PMID: 38391902 PMCID: PMC10890004 DOI: 10.3390/jfb15020049] [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: 12/29/2023] [Revised: 02/01/2024] [Accepted: 02/15/2024] [Indexed: 02/24/2024] Open
Abstract
Human platelet lysate (HPL), rich in growth factors, is increasingly recognized for its potential in tissue engineering and regenerative medicine. However, its use in liquid or gel form is constrained by limited stability and handling difficulties. This study aimed to develop dry and porous aerogels from HPL hydrogel using an environmentally friendly supercritical CO2-based shaping process, specifically tailored for tissue engineering applications. The aerogels produced retained their three-dimensional structure and demonstrated significant mechanical robustness and enhanced manageability. Impressively, they exhibited high water absorption capacity, absorbing 87% of their weight in water within 120 min. Furthermore, the growth factors released by these aerogels showed a sustained and favourable biological response in vitro. They maintained the cellular metabolic activity of fibroblasts (BALB-3T3) at levels akin to conventional culture conditions, even after prolonged storage, and facilitated the migration of human umbilical vein endothelial cells (HUVECs). Additionally, the aerogels themselves supported the adhesion and proliferation of murine fibroblasts (BALB-3T3). Beyond serving as excellent matrices for cell culture, these aerogels function as efficient systems for the delivery of growth factors. Their multifunctional capabilities position them as promising candidates for various tissue regeneration strategies. Importantly, the developed aerogels can be stored conveniently and are considered ready to use, enhancing their practicality and applicability in regenerative medicine.
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Affiliation(s)
- Fahd Tibourtine
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Thibault Canceill
- Département Odontologie, Faculté de Santé, Hôpitaux de Toulouse, Université Paul Sabatier, 3 Chemin des Maraichers, CEDEX 9, 31062 Toulouse, France
| | - Andrea Marfoglia
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
- Laboratoire de Génie Chimique, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 31062 Toulouse, France
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, 67085 Strasbourg, France
| | - Laure Gibot
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III-Paul Sabatier, 31062 Toulouse, France
| | - Ludovic Pilloux
- Laboratoire de Génie Chimique, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 31062 Toulouse, France
| | - Clementine Aubry
- ARNA, Inserm U1212, CNRS 5320, University of Bordeaux, 146 Rue Léo Saignat, CEDEX, 33076 Bordeaux, France
| | - Claire Medemblik
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, 67085 Strasbourg, France
| | - Dominique Goudouneche
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine, 133 Route de Narbonne, 31062 Toulouse, France
| | - Agnès Dupret-Bories
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
- Department of Surgery, University Cancer Institute of Toulouse-Oncopole, 1 Avenue Irène Joliot-Curie, 31100 Toulouse, France
- Department of Ear, Nose and Throat Surgery, Toulouse University Hospital-Larrey Hospital, 31400 Toulouse, France
| | - Sophie Cazalbou
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
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Pantić M, Maver U, Rožanc J, Vihar B, Andrejč DC, Knez Ž, Novak Z. Evaluation of ethanol-induced chitosan aerogels with human osteoblast cells. Int J Biol Macromol 2023; 253:126694. [PMID: 37673150 DOI: 10.1016/j.ijbiomac.2023.126694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 08/31/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
The following article provides an insight into the production of chitosan aerogels as potential materials for tissue engineering. Chitosan aerogels were prepared following two different protocols: formation in ethanol and formation in sodium hydroxide in an ethanol solution. The main objective was to apply a new route to obtain chitosan aerogels with no external cross-linkers and compare the mentioned preparation approaches. Forming chitosan aerogels in ethanol implies a simple, environmentally friendly, and efficient method. The prepared materials showed specific surface areas of up to 450 m2/g, highly porous networks and great mechanical properties. In vitro degradation studies revealed high stability for up to 10 weeks. The differences between the samples were significant. While the chitosan aerogels prepared in ethanol showed superior textural, morphological and mechanical properties, the chitosan aerogels prepared in the sodium hydroxide solution proved that a considerable influence on end properties could be made simply by adjusting the ageing medium. In vitro cell analysis with primary human osteoblasts showed good biocompatibility and pointed towards the potential use of these aerogels for orthopedic applications. This testing showed further that adjustments in structural properties by sodium hydroxide also come with a cost regarding their suitability to host bone cells.
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Affiliation(s)
- Milica Pantić
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia
| | - Uroš Maver
- University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Jan Rožanc
- University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Boštjan Vihar
- University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Darija Cör Andrejč
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia
| | - Željko Knez
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia; University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Zoran Novak
- University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
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Vrabič-Brodnjak U. Hybrid Materials of Bio-Based Aerogels for Sustainable Packaging Solutions. Gels 2023; 10:27. [PMID: 38247750 PMCID: PMC10815338 DOI: 10.3390/gels10010027] [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: 12/06/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
This review explores the field of hybrid materials in the context of bio-based aerogels for the development of sustainable packaging solutions. Increasing global concern over environmental degradation and the growing demand for environmentally friendly alternatives to conventional packaging materials have led to a growing interest in the synthesis and application of bio-based aerogels. These aerogels, which are derived from renewable resources such as biopolymers and biomass, have unique properties such as a lightweight structure, excellent thermal insulation, and biodegradability. The manuscript addresses the innovative integration of bio-based aerogels with various other materials such as nanoparticles, polymers, and additives to improve their mechanical, barrier, and functional properties for packaging applications. It critically analyzes recent advances in hybridization strategies and highlights their impact on the overall performance and sustainability of packaging materials. In addition, the article identifies the key challenges and future prospects associated with the development and commercialization of hybrid bio-based aerogel packaging materials. The synthesis of this knowledge is intended to contribute to ongoing efforts to create environmentally friendly alternatives that address the current problems associated with conventional packaging while promoting a deeper understanding of the potential of hybrid materials for sustainable packaging solutions.
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Affiliation(s)
- Urška Vrabič-Brodnjak
- Department of Textiles, Graphic Arts and Design, Faculty of Natural Sciences and Engineering, University of Ljubljana, Snežniška 5, 1000 Ljubljana, Slovenia
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6
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Izadi Z, Rashidi M, Derakhshankhah H, Dolati M, Ghanbari Kermanshahi M, Adibi H, Samadian H. Curcumin-loaded porous particles functionalized with pH-responsive cell-penetrating peptide for colorectal cancer targeted drug delivery. RSC Adv 2023; 13:34587-34597. [PMID: 38024994 PMCID: PMC10670635 DOI: 10.1039/d3ra06270h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 09/21/2023] [Indexed: 12/01/2023] Open
Abstract
The anticancer properties of curcumin have been broadly examined in several shapes, such as nanoparticles and nanocomposite structures. Despite its benefits, curcumin also has some disadvantages, including rapid metabolism, poor absorption, and rapid systemic excretion. Therefore, numerous strategies have been used to increase curcumin's bioavailability. One of these approaches is the use of porous particles like aerogels as drug carriers. Aerogels are special due to their peculiar physical structure. They have a high specific surface area, a significant amount of porosity, and a solid composition, which make them a good choice for drug delivery systems. In the present study, a pH-sensitive aerogel was constructed and evaluated for targeted drug delivery of curcumin to colon cancer. To control the release of curcumin, trehalose was used as a coating agent, and PLP (poly(l-lysine isophthalamide)) was used as a targeted drug delivery agent. PLP is a pseudo-peptidic polymer that increases the cell permeability. In order to investigate and compare the synthesized aerogel before and after loading curcumin and coating with trehalose, physicochemical characterization analyses were performed. Finally, the efficacy of the final formulation was evaluated on HT29 colon cells using the cell bioavailability test. The results indicated the successful synthesis of the aerogel with porous structure with solitary cavities. The trehalose coating performed well, preventing drug release at lower pH but allowing the drug to be released at its intended site. The designed curcumin-loaded porous particles functionalized with PLP showed significant efficacy due to increasing penetration of curcumin into cells, and has potential for use as a new drug carrier with dual effectivity in cancer therapy.
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Affiliation(s)
- Zhila Izadi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences Kermanshah Iran
- USERN Office, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Maryam Rashidi
- USERN Office, Kermanshah University of Medical Sciences Kermanshah Iran
- Student Research Committee, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Hossein Derakhshankhah
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences Kermanshah Iran
- USERN Office, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Mozhdeh Dolati
- USERN Office, Kermanshah University of Medical Sciences Kermanshah Iran
- Student Research Committee, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Mohammad Ghanbari Kermanshahi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences Kermanshah Iran
- USERN Office, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Hadi Adibi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences Kermanshah Iran
| | - Hadi Samadian
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences Hamadan Iran
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Huang J, Gao J, Qi L, Gao Q, Fan L. Preparation and Properties of Starch-Cellulose Composite Aerogel. Polymers (Basel) 2023; 15:4294. [PMID: 37959975 PMCID: PMC10648849 DOI: 10.3390/polym15214294] [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: 08/25/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
In this study, we conducted research on the preparation of aerogels using cellulose and starch as the primary materials, with the addition of N,N'-methylenebisacrylamide (MBA) as a cross-linking agent. The chemical, morphological and textural characteristics of the aerogels were found to be influenced by the proportions of cellulose, starch, and cross-linking agent that were utilized. An increase in the proportion of cellulose led to stronger adsorption forces within the aerogel structure. The aerogel showed a fine mesh internal structure, but the pores gradually increased with the further increase in cellulose. Notably, when the mass fractions of starch and cellulose were 5 wt% and 1 wt% respectively, the aerogels exhibited the smallest pore size and largest porosity. With an increase in the crosslinking agent, the internal structure of the aerogel first became dense and then loose, and the best internal structure was displayed at the addition of 3 wt%. Through texture analysis and the swelling test, the impact of the proportion of cellulose and MBA on the aerogel structure was significant. Dye adsorption experiments indicated that MBA affected the water absorption and expansion characteristics of the aerogel by improving the pore structure. Lastly, in tests involving the loading of vitamin E, the aerogels exhibited a higher capacity for incorporating vitamin E compared to native starch.
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Affiliation(s)
- Jihong Huang
- Food and Pharmacy College, Xuchang University, Xuchang 461000, China
| | - Jingyang Gao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (J.G.); (L.Q.)
| | - Liang Qi
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (J.G.); (L.Q.)
| | - Qunyu Gao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; (J.G.); (L.Q.)
| | - Ling Fan
- Food and Pharmacy College, Xuchang University, Xuchang 461000, China
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Yu X, Han F, Feng X, Wang X, Zhu Y, Ye C, Ji M, Chen Z, Tao R, Zhou Z, Wan F. Sea Cucumber-Inspired Aerogel for Ultrafast Hemostasis of Open Fracture. Adv Healthc Mater 2023; 12:e2300817. [PMID: 37340763 DOI: 10.1002/adhm.202300817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/29/2023] [Indexed: 06/22/2023]
Abstract
The symptomatic management of hemorrhagic shock complicated by open fractures is a great challenge, because it is also complicated by complex wound bleeding, bacterial infection, and bone defects. Inspired by the water absorption and cross-sectional microstructure of sea cucumbers, in this study, a new sea cucumber-like aerogel (GCG) is proposed. Its aligned porous structure and composition can stop bleeding rapidly and effectively with a blood clotting index of 3.73 ± 1.8%. More importantly, the data of in vivo hemostasis test in an amputating rat tail hemostatic model (15.69 ± 2.45 s, 26.95 ± 8.43 mg) and liver puncture bleeding model (23.77 ± 2.68 s, 36.22 ± 16.92 mg) also indicate the excellent hemostatic performance of GCG. In addition, GCG also shows a significant inhibitory effect on S. aureus and E. coli, which can prevent the occurrence of postoperative osteomyelitis. Not only that, after filling in the bone defect, it is shown that this GCG aerogel completely degrades eight weeks after surgery and induces new bone ingrowth, achieving functional regeneration after hemostasis of an open fracture defect. Generally, because of its combination of hemostatic, antibacterial, and osteogenic activities, this new aerogel is a promising option for open fractures treatment.
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Affiliation(s)
- Xinyu Yu
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Fei Han
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Xian Feng
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Xin Wang
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Yang Zhu
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Cong Ye
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Minrui Ji
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Zhichao Chen
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Ran Tao
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Zhenyu Zhou
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Fuyin Wan
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
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Karamikamkar S, Yalcintas EP, Haghniaz R, de Barros NR, Mecwan M, Nasiri R, Davoodi E, Nasrollahi F, Erdem A, Kang H, Lee J, Zhu Y, Ahadian S, Jucaud V, Maleki H, Dokmeci MR, Kim H, Khademhosseini A. Aerogel-Based Biomaterials for Biomedical Applications: From Fabrication Methods to Disease-Targeting Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204681. [PMID: 37217831 PMCID: PMC10427407 DOI: 10.1002/advs.202204681] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Indexed: 05/24/2023]
Abstract
Aerogel-based biomaterials are increasingly being considered for biomedical applications due to their unique properties such as high porosity, hierarchical porous network, and large specific pore surface area. Depending on the pore size of the aerogel, biological effects such as cell adhesion, fluid absorption, oxygen permeability, and metabolite exchange can be altered. Based on the diverse potential of aerogels in biomedical applications, this paper provides a comprehensive review of fabrication processes including sol-gel, aging, drying, and self-assembly along with the materials that can be used to form aerogels. In addition to the technology utilizing aerogel itself, it also provides insight into the applicability of aerogel based on additive manufacturing technology. To this end, how microfluidic-based technologies and 3D printing can be combined with aerogel-based materials for biomedical applications is discussed. Furthermore, previously reported examples of aerogels for regenerative medicine and biomedical applications are thoroughly reviewed. A wide range of applications with aerogels including wound healing, drug delivery, tissue engineering, and diagnostics are demonstrated. Finally, the prospects for aerogel-based biomedical applications are presented. The understanding of the fabrication, modification, and applicability of aerogels through this study is expected to shed light on the biomedical utilization of aerogels.
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Affiliation(s)
| | | | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | | | - Marvin Mecwan
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Rohollah Nasiri
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Elham Davoodi
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
- Department of Mechanical and Mechatronics EngineeringUniversity of WaterlooWaterlooONN2L 3G1Canada
| | - Fatemeh Nasrollahi
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
- Department of BioengineeringUniversity of California‐Los Angeles (UCLA)Los AngelesCA90095USA
| | - Ahmet Erdem
- Department of Biomedical EngineeringKocaeli UniversityUmuttepe CampusKocaeli41001Turkey
| | - Heemin Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Junmin Lee
- Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH)Pohang37673Republic of Korea
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Hajar Maleki
- Institute of Inorganic ChemistryDepartment of ChemistryUniversity of CologneGreinstraße 650939CologneGermany
- Center for Molecular Medicine CologneCMMC Research CenterRobert‐Koch‐Str. 2150931CologneGermany
| | | | - Han‐Jun Kim
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
- College of PharmacyKorea UniversitySejong30019Republic of Korea
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
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Elsherbiny DA, Abdelgawad AM, Hemdan BA, Montaser AS, El-Sayed IET, Jockenhoevel S, Ghazanfari S. Self-crosslinked polyvinyl alcohol/cellulose nanofibril cryogels loaded with synthesized aminophosphonates as antimicrobial wound dressings. J Mater Chem B 2023. [PMID: 37403540 DOI: 10.1039/d3tb00926b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Microbial infection is the most common obstacle in the wound healing process, leading to wound healing impairment and complications and ultimately increasing morbidity and mortality. Due to the rising number of pathogens evolving resistance to the existing antibiotics used for wound care, alternative approaches are urgently required. In this study, α-aminophosphonate derivatives as antimicrobial agents were synthesized and incorporated into self-crosslinked tri-component cryogels composed of fully hydrolyzed polyvinyl alcohol (PVA-F), partially hydrolyzed polyvinyl alcohol (PVA-P), and cellulose nanofibrils (CNFs). Initially, the antimicrobial activity of four α-aminophosphonate derivatives against selected skin bacterial species was tested and their minimum inhibitory concentration was determined based on which the most effective compound was loaded into the cryogels. Next, the physical and mechanical properties of cryogels with various blending ratios of PVA-P/PVA-F and fixed amounts of CNFs were assessed, and drug release profiles and biological activities of drug-loaded cryogels were analyzed. Assessment of α-aminophosphonate derivatives showed the highest efficacy of a cinnamaldehyde-based derivative (Cinnam) against both Gram-negative and Gram-positive bacteria compared to other derivatives. The physical and mechanical properties of cryogels showed that PVA-P/PVA-F with a 50/50 blending ratio had the highest swelling ratio (1600%), surface area (523 m2 g-1), and compression recoverability (72%) compared to that with other blending ratios. Finally, antimicrobial and biofilm development studies showed that the cryogel loaded with a Cinnam amount of 2 mg (relative to polymer weight) showed the most sustained drug release profile over 75 h and had the highest efficacy against Gram-negative and Gram-positive bacteria. In conclusion, self-crosslinked tri-component cryogels loaded with the synthesized α-aminophosphonate derivative, having both antimicrobial and anti-biofilm formation properties, can have a significant impact on the management of uprising wound infection.
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Affiliation(s)
- Dalia A Elsherbiny
- Department of Chemistry, Faculty of Science, Menoufia University, Egypt
- Aachen-Maastricht Institute for Biobased Materials, Faculty of Science and Engineering, Maastricht University, The Netherlands.
| | - Abdelrahman M Abdelgawad
- Textile Research and Technology Institute, National Research Centre (Affiliation ID: 60014618), Dokki, Cairo, Egypt.
- Textile Engineering Chemistry and Science Department, Wilson College of Textiles, North Carolina State University, Raleigh, NC, USA
- Chemistry Department, Faculty of Science, New Mansoura University, New Mansoura City 35511, Egypt
| | - Bahaa A Hemdan
- Water Pollution Research Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt
| | - Ahmed S Montaser
- Textile Research and Technology Institute, National Research Centre (Affiliation ID: 60014618), Dokki, Cairo, Egypt.
| | | | - Stefan Jockenhoevel
- Aachen-Maastricht Institute for Biobased Materials, Faculty of Science and Engineering, Maastricht University, The Netherlands.
- Department of Biohybrid & Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Forckenbeckstrabe 55, 52072 Aachen, Germany
| | - Samaneh Ghazanfari
- Aachen-Maastricht Institute for Biobased Materials, Faculty of Science and Engineering, Maastricht University, The Netherlands.
- Department of Biohybrid & Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Forckenbeckstrabe 55, 52072 Aachen, Germany
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11
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Souto-Lopes M, Fernandes MH, Monteiro FJ, Salgado CL. Bioengineering Composite Aerogel-Based Scaffolds That Influence Porous Microstructure, Mechanical Properties and In Vivo Regeneration for Bone Tissue Application. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4483. [PMID: 37374666 DOI: 10.3390/ma16124483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/13/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023]
Abstract
Tissue regeneration of large bone defects is still a clinical challenge. Bone tissue engineering employs biomimetic strategies to produce graft composite scaffolds that resemble the bone extracellular matrix to guide and promote osteogenic differentiation of the host precursor cells. Aerogel-based bone scaffold preparation methods have been increasingly improved to overcome the difficulties in balancing the need for an open highly porous and hierarchically organized microstructure with compression resistance to withstand bone physiological loads, especially in wet conditions. Moreover, these improved aerogel scaffolds have been implanted in vivo in critical bone defects, in order to test their bone regeneration potential. This review addresses recently published studies on aerogel composite (organic/inorganic)-based scaffolds, having in mind the various cutting-edge technologies and raw biomaterials used, as well as the improvements that are still a challenge in terms of their relevant properties. Finally, the lack of 3D in vitro models of bone tissue for regeneration studies is emphasized, as well as the need for further developments to overcome and minimize the requirement for studies using in vivo animal models.
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Affiliation(s)
- Mariana Souto-Lopes
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
- Departamento de Engenharia Metalúrgica e de Materiais, Faculdade de Engenharia da Universidade do Porto, 4200-465 Porto, Portugal
| | - Maria Helena Fernandes
- Bonelab-Laboratory for Bone Metabolism and Regeneration, Faculdade de Medicina Dentária da Universidade do Porto, 4200-393 Porto, Portugal
- LAQV/REQUIMTE-Laboratório Associado para a Química Verde/Rede de Química e Tecnologia, 4169-007 Porto, Portugal
| | - Fernando Jorge Monteiro
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
- Departamento de Engenharia Metalúrgica e de Materiais, Faculdade de Engenharia da Universidade do Porto, 4200-465 Porto, Portugal
- Porto Comprehensive Cancer Center (P.CCC), R. Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Christiane Laranjo Salgado
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
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12
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Pontinha ADR, Moreira BB, Melo BL, Melo-Diogo DD, Correia IJ, Alves P. Silica Aerogel-Polycaprolactone Scaffolds for Bone Tissue Engineering. Int J Mol Sci 2023; 24:10128. [PMID: 37373280 DOI: 10.3390/ijms241210128] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Silica aerogel is a material composed of SiO2 that has exceptional physical properties when utilized for tissue engineering applications. Poly-ε-caprolactone (PCL) is a biodegradable polyester that has been widely used for biomedical applications, namely as sutures, drug carriers, and implantable scaffolds. Herein, a hybrid composite of silica aerogel, prepared with two different silica precursors, tetraethoxysilane (TEOS) or methyltrimethoxysilane (MTMS), and PCL was synthesized to fulfil bone regeneration requirements. The developed porous hybrid biocomposite scaffolds were extensively characterized, regarding their physical, morphological, and mechanical features. The results showed that their properties were relevant, leading to composites with different properties. The water absorption capacity and mass loss were evaluated as well as the influence of the different hybrid scaffolds on osteoblasts' viability and morphology. Both hybrid scaffolds showed a hydrophobic character (with water contact angles higher than 90°), low swelling (maximum of 14%), and low mass loss (1-7%). hOB cells exposed to the different silica aerogel-PCL scaffolds remained highly viable, even for long periods of incubation (7 days). Considering the obtained results, the produced hybrid scaffolds may be good candidates for future application in bone tissue engineering.
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Affiliation(s)
- Ana Dora Rodrigues Pontinha
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
- University of Coimbra, ISISE, Department of Civil Engineering, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal
| | - Beatriz Barbosa Moreira
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
| | - Bruna Lopes Melo
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Ilídio Joaquim Correia
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Patrícia Alves
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
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13
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Abbasi M, Sohail M, Minhas MU, Mahmood A, Shah SA, Munir A, Kashif MUR. Folic acid-decorated alginate nanoparticles loaded hydrogel for the oral delivery of diferourylmethane in colorectal cancer. Int J Biol Macromol 2023; 233:123585. [PMID: 36758757 DOI: 10.1016/j.ijbiomac.2023.123585] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/25/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
The disease-related suffering in colorectal cancer remains prevalent despite advancements in the field of drug delivery. Chemotherapy-related side effects and non-specificity remain a challenge in drug delivery. The great majority of hydrophobic drugs cannot be successfully delivered to the colon orally mainly due to poor solubility, low bioavailability, pH differences, and food interactions. Polymeric nanoparticles are potential drug delivery candidates but there are numerous limitations to their usefulness in colon cancer. The nanoparticles are removed from the body rapidly by p-glycoprotein efflux, inactivation, or breakdown by enzymes limiting their efficiency. Furthermore, there is a lack of selectivity in targeting cancer cells; nanoparticles may also target healthy cells, resulting in toxicity and adverse effects. The study aimed to use nanoparticles for specific targeting of the colorectal tumor cells via the oral route of administration without adverse effects. Folic acid (FA), a cancer-targeting ligand possessing a high affinity for folate receptors overexpressed in colorectal cancers was conjugated to sodium alginate- nanoparticles by NH2-linkage. The folic-acid conjugated nanoparticles (FNPs) were delivered to the colon by a pH-sensitive hydrogel synthesized by the free radical polymerization method to provide sustained drug release. The developed system referred to as the "Hydrogel-Nano (HN) drug delivery system," was specifically capable of delivering diferourylmethane to the colon. The HN system was characterized by DLS, FTIR, XRD, TGA, DSC, and SEM. The FNPs size, polydispersity index, and zeta potential were measured. The folic acid-conjugation to nanoparticles' surface was studied by UV-visible spectroscopy using Beer-Lambert's law. In-vitro studies, including sol-gel, porosity, drug loading, entrapment efficiency, etc., revealed promising results. The swelling and release studies showed pH-dependent release of the drug in colonic pH 7.4. Cellular uptake and cytotoxicity studies performed on FR-overexpressed Hela cell lines and FR-negative A-549 cell lines showed facilitated uptake of nanoparticles by folate receptors. A threefold increase in Cmax and prolongation of the mean residence time (MRT) to 14.52 +/- 0.217 h indicated sustained drug release by the HN system. The findings of the study can provide a sufficient ground that the synergistic approach of the HN system can deliver hydrophobic drugs to colorectal cancer cells via the oral route, but further in-vivo animal cancer model studies are required.
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Affiliation(s)
- Mudassir Abbasi
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
| | - Muhammad Sohail
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan; Faculty of Pharmacy, Cyprus International University, Nicosia, 99258, North Cyprus.
| | | | - Arshad Mahmood
- Collage of Pharmacy, Al Ain University, Abu Dhabi, United Arab Emirates; AAU Health and Biomedical Research Center, Al Ain University, Abu Dhabi, United Arab Emirates
| | - Syed Ahmed Shah
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan; Department of Pharmaceutical Sciences, The Superior University, Lahore 54600, Pakistan
| | - Abubakar Munir
- Department of Pharmaceutical Sciences, The Superior University, Lahore 54600, Pakistan
| | - Mehboob-Ur-Rehman Kashif
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
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14
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Bakhori NM, Ismail Z, Hassan MZ, Dolah R. Emerging Trends in Nanotechnology: Aerogel-Based Materials for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1063. [PMID: 36985957 PMCID: PMC10058649 DOI: 10.3390/nano13061063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
At present, aerogel is one of the most interesting materials globally. The network of aerogel consists of pores with nanometer widths, which leads to a variety of functional properties and broad applications. Aerogel is categorized as inorganic, organic, carbon, and biopolymers, and can be modified by the addition of advanced materials and nanofillers. Herein, this review critically discusses the basic preparation of aerogel from the sol-gel reaction with derivation and modification of a standard method to produce various aerogels for diverse functionalities. In addition, the biocompatibility of various types of aerogels were elaborated. Then, biomedical applications of aerogel were focused on this review as a drug delivery carrier, wound healing agent, antioxidant, anti-toxicity, bone regenerative, cartilage tissue activities and in dental fields. The clinical status of aerogel in the biomedical sector is shown to be similarly far from adequate. Moreover, due to their remarkable properties, aerogels are found to be preferably used as tissue scaffolds and drug delivery systems. The advanced studies in areas including self-healing, additive manufacturing (AM) technology, toxicity, and fluorescent-based aerogel are crucially important and are further addressed.
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Affiliation(s)
- Noremylia Mohd Bakhori
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
| | - Zarini Ismail
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
| | - Mohamad Zaki Hassan
- Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Selangor, Malaysia
| | - Rozzeta Dolah
- Department of Chemical Engineering, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Selangor, Malaysia
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15
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Zhou S, Xiao J, Ji Y, Feng Y, Yan S, Li X, Zhang Q, You R. Natural silk nanofibers as building blocks for biomimetic aerogel scaffolds. Int J Biol Macromol 2023; 237:124223. [PMID: 36996961 DOI: 10.1016/j.ijbiomac.2023.124223] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/17/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023]
Abstract
Protein nanofibers offer great promise for tissue engineering scaffolds owing to biomimetic architecture and exceptional biocompatibility. Natural silk nanofibrils (SNFs) are promising but unexplored protein nanofibers for biomedical applications. In this study, the SNF-assembled aerogel scaffolds with ECM-mimicking architecture and ultra-high porosity are developed based on a polysaccharides-assisted strategy. The SNFs exfoliated from silkworm silks can be utilized as building blocks to construct 3D nanofibrous scaffolds with tunable densities and desirable shapes on a large scale. We demonstrate that the natural polysaccharides can regulate SNF assembly through multiple binding modes, endowing the scaffolds with structural stability in water and tunable mechanical properties. As a proof of concept, the biocompatibility and biofunctionality of the chitosan-assembled SNF aerogels were investigated. The nanofibrous aerogels have excellent biocompatibility, and their biomimetic structure, ultra-high porosity, and large specific surface area endow the scaffolds with enhanced cell viability to mesenchymal stem cells. The nanofibrous aerogels were further functionalized by SNF-mediated biomineralization, demonstrating their potential as a bone-mimicking scaffold. Our results show the potential of natural nanostructured silks in the field of biomaterials and provide a feasible strategy to construct protein nanofiber scaffolds.
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16
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El Halawany M, Latif R, AbouGhaly MHH. Hemostatic Alginate/Nano-Hydroxyapatite Composite Aerogel Loaded with Tranexamic Acid for the Potential Protection against Alveolar Osteitis. Pharmaceutics 2022; 14:pharmaceutics14102255. [PMID: 36297689 PMCID: PMC9608763 DOI: 10.3390/pharmaceutics14102255] [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: 08/17/2022] [Revised: 10/06/2022] [Accepted: 10/18/2022] [Indexed: 11/21/2022] Open
Abstract
Wound control in patients on anticoagulants is challenging and often leads to poor hemostasis. They have a higher tendency to develop alveolar osteitis after tooth extraction. The application of a hemostatic dressing that has a high absorbing capacity and is loaded with an antifibrinolytic drug could help in controlling the bleeding. Alginate/nano-hydroxyapatite (SA/Nano-HA) composite aerogels loaded with tranexamic acid (TXA) were prepared. Nano-HA served as a reinforcing material for the alginate matrix and a source of calcium ions that helps in blood clotting. It influenced the porosity and the water uptake capacity. TXA release from SA/Nano-HA aerogels showed a biphasic profile for up to 4 h. Blood coagulation studies were performed on human whole blood. The TXA-loaded aerogel significantly reduced the clotting time by 69% compared to the control (p < 0.0001). Recalcification time was significantly reduced by 80% (p < 0.0001). Scanning electron microscopy analysis revealed the porous nature of the aerogels and the ability of the optimum aerogel to activate and adhere platelets to its porous surface. The cell migration assay showed that there was a delay in wound healing caused by the TXA aerogel compared to the control sample after treating human fibroblasts. Results suggest that the developed aerogel is a promising dressing that will help in hemostasis after tooth extraction.
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Affiliation(s)
- Mai El Halawany
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo 11562, Egypt
- Correspondence: ; Tel.: +20-10-0846-3596; Fax: +20-22-362-8246
| | - Randa Latif
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo 11562, Egypt
| | - Mohamed H. H. AbouGhaly
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo 11562, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, School of Pharmacy, Newgiza University, Km. 22 Cairo-Alex Road, Giza P.O. Box 12577, Egypt
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17
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Guo J, Yang X, Chen J, Wang C, Kang Y, Jiang T, Chen M, Li W, Zhou C, Chen Z. Accelerated Bone Regeneration by an Astaxanthin-Modified Antioxidant Aerogel through Relieving Oxidative Stress via the NRF2 Signaling Pathway. ACS Biomater Sci Eng 2022; 8:4524-4534. [PMID: 36073984 DOI: 10.1021/acsbiomaterials.2c00596] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Bone regeneration of critical-sized bone defects (CSBDs) with biomimetic collagen-based aerogels remains a significant challenge due to the oxidative stress on the microenvironment. The excessive oxidative stress could induce apoptosis and dysfunction of host-derived cells. Astaxanthin (ATX) exhibits excellent antioxidant ability to block free radical chain reactions. In the present study, hybrid antioxidant collagen-derived aerogels (ATX-Col aerogels) were fabricated by a simple one-step method through the covalent cross-linking of Col and ATX. The resulting ATX-Col aerogels show porous and interconnected structures due to freeze-drying strategies. The ATX-Col aerogels exhibited excellent biocompatibility and biosafety. Furthermore, ATX-Col aerogels demonstrated favorable antioxidant capacity by eliminating intracellular ROS by activating the NRF2 signaling pathway. Finally, excellent reparative effects in repairing rat cranial defects were observed in ATX-Col aerogels. Taken together, ATX-Col aerogels can accelerate bone regeneration by relieving oxidative stress via the NRF2 signaling pathway and act as a potential bone graft for CSBD. This study provides a simple method of developing antioxidant aerogels for bone regeneration.
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Affiliation(s)
- Jiahe Guo
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaofan Yang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Cheng Wang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yu Kang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tao Jiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Min Chen
- Department of Hand and Foot Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518000, Guangdong, China
| | - Wenqing Li
- Department of Hand and Foot Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518000, Guangdong, China
| | - Chuchao Zhou
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Zhenbing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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18
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Esquivel-Castro TA, Martínez-Luévanos A, Cabrera AR, García-Cerda LA, Esparza-González SC, Ibarra-Alonso MC, Estrada-Flores S. ZrO2 aerogels as drugs delivery platforms: Synthesis, cytotoxicity, and diclofenac delivery. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Kim M, Choi C, Lee JP, Kim J, Cha C. Multiscale Engineering of Nanofiber-Aerogel Composite Nanogenerator with Tunable Triboelectric Performance Based on Multifunctional Polysuccinimide. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107316. [PMID: 35306738 DOI: 10.1002/smll.202107316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Multiscale polymer engineering, involving chemical modification to control their triboelectric polarities as well as physicomechanical modification to maximize charge transfer and structural durability, is paramount to developing a high-performance triboelectric nanogenerator (TENG). This report introduces a highly efficient and comprehensive strategy to engineer high-performance TENG based on multifunctional polysuccinimide (PSI). With the ability of PSI to undergo facile nucleophilic addition with amines, sodium sulfate and quaternary ammonium chlorides having opposite charged groups are conjugated to PSI in varying densities. The resulting Sulfo-PSI and TMAC-PSI, respectively, processed into nanofibrous films, demonstrate highly enhanced and variable triboelectric properties based on the charge type and density. To further enhance the mechanical toughness and biocompatibility necessary for wearable applications, these PSI nanofibers are processed into alginate aerogel (AG). The sustained triboelectric performance of this nanofiber-AG TENG as a wearable energy harvester and biosensor is examined and validated in detail.
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Affiliation(s)
- Mirae Kim
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Cholong Choi
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jin Pyo Lee
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jiyun Kim
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Chaenyung Cha
- Center for Multidimensional Programmable Matter, Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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20
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Ferreira-Gonçalves T, Iglesias-Mejuto A, Linhares T, Coelho JMP, Vieira P, Faísca P, Catarino J, Pinto P, Ferreira D, Ferreira HA, Gaspar MM, Durães L, García-González CA, Reis CP. Biological Thermal Performance of Organic and Inorganic Aerogels as Patches for Photothermal Therapy. Gels 2022; 8:gels8080485. [PMID: 36005086 PMCID: PMC9407269 DOI: 10.3390/gels8080485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/24/2022] [Accepted: 07/27/2022] [Indexed: 11/30/2022] Open
Abstract
Aerogels are materials with unique properties, among which are low density and thermal conductivity. They are also known for their exquisite biocompatibility and biodegradability. All these features make them attractive for biomedical applications, such as their potential use in photothermal therapy (PTT). This technique is, yet, still associated with undesirable effects on surrounding tissues which emphasizes the need to minimize the exposure of healthy regions. One way to do so relies on the use of materials able to block the radiation and the heat generated. Aerogels might be potentially useful for this purpose by acting as insulators. Silica- and pectin-based aerogels are reported as the best inorganic and organic thermal insulators, respectively; thus, the aim of this work relies on assessing the possibility of using these materials as light and thermal insulators and delimiters for PTT. Silica- and pectin-based aerogels were prepared and fully characterized. The thermal protection efficacy of the aerogels when irradiated with a near-infrared laser was assessed using phantoms and ex vivo grafts. Lastly, safety was assessed in human volunteers. Both types presented good textural properties and safe profiles. Moreover, thermal activation unveils the better performance of silica-based aerogels, confirming the potential of this material for PTT.
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Affiliation(s)
- Tânia Ferreira-Gonçalves
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (T.F.-G.); (P.P.); (M.M.G.)
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal; (J.M.P.C.); (H.A.F.)
| | - Ana Iglesias-Mejuto
- I+D Farma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (A.I.-M.); (C.A.G.-G.)
| | - Teresa Linhares
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, 3030-790 Coimbra, Portugal; (T.L.); (L.D.)
- 2C2T-Centre for Textile Science and Technology, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - João M. P. Coelho
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal; (J.M.P.C.); (H.A.F.)
| | - Pedro Vieira
- Physics Department, NOVA School of Science and Technology (Campus de Caparica), 2829-516 Caparica, Portugal;
| | - Pedro Faísca
- CBIOS-Research Center for Biosciences & Health Technologies, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal;
| | - José Catarino
- Faculdade de Medicina Veterinária, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal;
| | - Pedro Pinto
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (T.F.-G.); (P.P.); (M.M.G.)
| | - David Ferreira
- Comprehensive Health Research Centre (CHRC), Departamento de Desporto e Saúde, Escola de Saúde e Desenvolvimento Humano, Universidade de Évora, Largo dos Colegiais, 7004-516 Évora, Portugal;
| | - Hugo A. Ferreira
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal; (J.M.P.C.); (H.A.F.)
| | - Maria Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (T.F.-G.); (P.P.); (M.M.G.)
| | - Luísa Durães
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, 3030-790 Coimbra, Portugal; (T.L.); (L.D.)
| | - Carlos A. García-González
- I+D Farma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (A.I.-M.); (C.A.G.-G.)
| | - Catarina Pinto Reis
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (T.F.-G.); (P.P.); (M.M.G.)
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal; (J.M.P.C.); (H.A.F.)
- Correspondence: ; Tel.: +351-217-946-429 (ext. 14244); Fax: +351-217-946-470
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21
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Borges-Vilches J, Figueroa T, Guajardo S, Carmona S, Mellado C, Meléndrez M, Aguayo C, Fernández K. Novel and effective hemostats based on graphene oxide-polymer aerogels: In vitro and in vivo evaluation. BIOMATERIALS ADVANCES 2022; 139:213007. [PMID: 35891602 DOI: 10.1016/j.bioadv.2022.213007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/17/2022] [Accepted: 06/24/2022] [Indexed: 10/17/2022]
Abstract
In this study, graphene oxide (GO)-based aerogels cross-linked with chitosan (CS), gelatin (GEL), and polyvinyl alcohol (PVA) were characterized and their hemostatic efficiencies both in vitro and in vivo were investigated and compared to commercial materials (ChitoGauze®XR and Spongostan™). All aerogels exhibited highly porous structures and a negative surface charge density favorable to their interaction with blood cells. The in vitro studies showed that all aerogels coagulated >60 % of the blood contained in their structures after 240 s of the whole-blood clotting assay, the GO-CS aerogel being the one with the highest blood clotting. All aerogels showed high hemocompatibility, with hemolytic rates <5 %, indicating their use as biomaterials. Among them, the GO-GEL aerogel exhibited the lowest hemolytic activity, due possibly to its high GEL content compared to the GO amount. According to their blood clotting activity, aerogels did not promote coagulation through extrinsic and intrinsic pathways. However, their surfaces are suitable for accelerating hemostasis by promoting alternative routes. All aerogels adhered platelets and gathered RBCs on their surfaces, and in addition the GO-CS aerogel surface also promoted the formation of filamentous fibrin networks adhered on its structure. Furthermore, in vivo evaluations revealed that all aerogels significantly shortened the hemostatic times and reduced the blood loss amounts compared both to the Spongostan™ and ChitoGauze®XR commercial materials and to the gauze sponge (control group). The hemostatic performance in vitro and in vivo of these aerogels suggests that they could be used as hemostats for controlling profuse bleedings.
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Affiliation(s)
- Jessica Borges-Vilches
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Toribio Figueroa
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Sebastián Guajardo
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Satchary Carmona
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Constanza Mellado
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Manuel Meléndrez
- Department of Materials Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Claudio Aguayo
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, Universidad de Concepción, Concepción, Chile
| | - Katherina Fernández
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile.
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22
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Remuiñán-Pose P, López-Iglesias C, Iglesias-Mejuto A, Mano JF, García-González CA, Rial-Hermida MI. Preparation of Vancomycin-Loaded Aerogels Implementing Inkjet Printing and Superhydrophobic Surfaces. Gels 2022; 8:gels8070417. [PMID: 35877502 PMCID: PMC9319758 DOI: 10.3390/gels8070417] [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: 05/31/2022] [Revised: 06/25/2022] [Accepted: 06/29/2022] [Indexed: 12/27/2022] Open
Abstract
Chronic wounds are physical traumas that significantly impair the quality of life of over 40 million patients worldwide. Aerogels are nanostructured dry porous materials that can act as carriers for the local delivery of bioactive compounds at the wound site. However, aerogels are usually obtained with low drug loading yields and poor particle size reproducibility and urges the implementation of novel and high-performance processing strategies. In this work, alginate aerogel particles loaded with vancomycin, an antibiotic used for the treatment of Staphylococcus aureus infections, were obtained through aerogel technology combined with gel inkjet printing and water-repellent surfaces. Alginate aerogel particles showed high porosity, large surface area, a well-defined spherical shape and a reproducible size (609 ± 37 μm). Aerogel formulation with vancomycin loadings of up to 33.01 ± 0.47 μg drug/mg of particle were obtained with sustained-release profiles from alginate aerogels for more than 7 days (PBS pH 7.4 medium). Overall, this novel green aerogel processing strategy allowed us to obtain nanostructured drug delivery systems with improved drug loading yields that can enhance the current antibacterial treatments for chronic wounds.
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Affiliation(s)
- Patricia Remuiñán-Pose
- I + D Farma Group (GI-1645), Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (P.R.-P.); (C.L.-I.); (A.I.-M.)
| | - Clara López-Iglesias
- I + D Farma Group (GI-1645), Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (P.R.-P.); (C.L.-I.); (A.I.-M.)
| | - Ana Iglesias-Mejuto
- I + D Farma Group (GI-1645), Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (P.R.-P.); (C.L.-I.); (A.I.-M.)
| | - Joao F. Mano
- CICECO Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Carlos A. García-González
- I + D Farma Group (GI-1645), Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (P.R.-P.); (C.L.-I.); (A.I.-M.)
- Correspondence: (C.A.G.-G.); (M.I.R.-H.); Tel.: +34-881815252 (M.I.R.-H.)
| | - M. Isabel Rial-Hermida
- I + D Farma Group (GI-1645), Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (P.R.-P.); (C.L.-I.); (A.I.-M.)
- Correspondence: (C.A.G.-G.); (M.I.R.-H.); Tel.: +34-881815252 (M.I.R.-H.)
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23
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Borges-Vilches J, Unalan I, Fernández K, Boccaccini AR. Fabrication of Biocompatible Electrospun Poly(ε-caprolactone)/Gelatin Nanofibers Loaded with Pinus radiata Bark Extracts for Wound Healing Applications. Polymers (Basel) 2022; 14:polym14122331. [PMID: 35745907 PMCID: PMC9228265 DOI: 10.3390/polym14122331] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 02/01/2023] Open
Abstract
In this study, poly(ε-caprolactone) (PCL)/gelatin (GEL) electrospun nanofibers loaded with two different concentrations of Pinus radiata bark extracts (PEs) were fabricated via electrospinning for wound healing applications. The effects of incorporating PE into PCL/GEL electrospun nanofibers were investigated regarding their physicochemical properties and in vitro biocompatibility. All electrospun nanofibers showed smooth, uniform, and bead-free surfaces. Their functional groups were detected by ATR-FTIR spectroscopy, and their total phenol content was measured by a Folin–Ciocalteu assay. With PE addition, the electrospun nanofibers exhibited an increase in their wettability and degradation rates over time and a decrease in their tensile stress values from 20 ± 4 to 8 ± 2 MPa for PCL/GEL and PCL/GEL/0.36%PE samples, respectively. PE was also released from the fibrous mats in a rather controlled fashion. The PCL/GEL/0.18%PE and PCL/GEL/0.36%PE electrospun nanofibers inhibited bacterial activity at around 6 ± 0.1% and 23 ± 0.3% against E. coli and 14 ± 0.1% and 18 ± 0.2% against S. aureus after 24 h incubation, respectively. In vitro cell studies showed that PE-loaded electrospun nanofibers enhanced HaCaT cell growth, attachment, and proliferation, favoring cell migration towards the scratch area in the wound healing assay and allowing a complete wound closure after 72 h treatment. These findings suggested that PE-loaded electrospun nanofibers are promising materials for antibiotic-free dressings for wound healing applications.
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Affiliation(s)
- Jessica Borges-Vilches
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción 4030000, Chile; (J.B.-V.); (K.F.)
| | - Irem Unalan
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany;
| | - Katherina Fernández
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción 4030000, Chile; (J.B.-V.); (K.F.)
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany;
- Correspondence:
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25
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Abbasi M, Sohail M, Minhas MU, Iqbal J, Mahmood A, Shaikh AJ. Folic acid-functionalized nanoparticles-laden biomaterials for the improved oral delivery of hydrophobic drug in colorectal cancer. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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26
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Hegedűs C, Czibulya Z, Tóth F, Dezső B, Hegedűs V, Boda R, Horváth D, Csík A, Fábián I, Tóth-Győri E, Sajtos Z, Lázár I. The Effect of Heat Treatment of β-Tricalcium Phosphate-Containing Silica-Based Bioactive Aerogels on the Cellular Metabolism and Proliferation of MG63 Cells. Biomedicines 2022; 10:biomedicines10030662. [PMID: 35327463 PMCID: PMC8945762 DOI: 10.3390/biomedicines10030662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/22/2022] [Accepted: 03/10/2022] [Indexed: 02/06/2023] Open
Abstract
β-Tricalcium phosphate was combined with silica aerogel in composites prepared using the sol–gel technique and supercritical drying. The materials were used in this study to check their biological activity and bone regeneration potential with MG63 cell experiments. The composites were sintered in 100 °C steps in the range of 500–1000 °C. Their mechanical properties, porosities, and solubility were determined as a function of sintering temperature. Dissolution studies revealed that the released Ca-/P molar ratios appeared to be in the optimal range to support bone tissue induction. Cell viability, ALP activity, and type I collagen gene expression results all suggested that the sintering of the compound at approximately 700–800 °C as a scaffold could be more powerful in vivo to facilitate bone formation within a bone defect, compared to that documented previously by our research team. We did not observe any detrimental effect on cell viability. Both the alkaline phosphatase enzyme activity and the type I collagen gene expression were significantly higher compared with the control and the other aerogels heat-treated at different temperatures. The mesoporous silica-based aerogel composites containing β-tricalcium phosphate particles treated at temperatures lower than 1000 °C produced a positive effect on the osteoblastic activity of MG63 cells. An in vivo 6 month-long follow-up study of the mechanically strongest 1000 °C sample in rat calvaria experiments provided proof of a complete remodeling of the bone.
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Affiliation(s)
- Csaba Hegedűs
- Department of Biomaterials and Prosthetic Dentistry, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary; (Z.C.); (F.T.)
- Correspondence: (C.H.); (I.L.)
| | - Zsuzsanna Czibulya
- Department of Biomaterials and Prosthetic Dentistry, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary; (Z.C.); (F.T.)
| | - Ferenc Tóth
- Department of Biomaterials and Prosthetic Dentistry, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary; (Z.C.); (F.T.)
| | - Balázs Dezső
- Department of Oral Pathology and Microbiology, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary;
| | - Viktória Hegedűs
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary;
| | - Róbert Boda
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary; (R.B.); (D.H.)
| | - Dóra Horváth
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Debrecen, 4032 Debrecen, Hungary; (R.B.); (D.H.)
| | - Attila Csík
- Laboratory of Materials Science, Institute for Nuclear Research, Eötvös Loránd Research Network, 4026 Debrecen, Hungary;
| | - István Fábián
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology, University of Debrecen, 4032 Debrecen, Hungary; (I.F.); (E.T.-G.); (Z.S.)
| | - Enikő Tóth-Győri
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology, University of Debrecen, 4032 Debrecen, Hungary; (I.F.); (E.T.-G.); (Z.S.)
| | - Zsófi Sajtos
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology, University of Debrecen, 4032 Debrecen, Hungary; (I.F.); (E.T.-G.); (Z.S.)
| | - István Lázár
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Technology, University of Debrecen, 4032 Debrecen, Hungary; (I.F.); (E.T.-G.); (Z.S.)
- Correspondence: (C.H.); (I.L.)
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27
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Syeda HI, Yap PS. A review on three-dimensional cellulose-based aerogels for the removal of heavy metals from water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:150606. [PMID: 34592292 DOI: 10.1016/j.scitotenv.2021.150606] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Contamination of the aquatic ecosystem by heavy metals is a growing concern that has yet to be addressed with an efficient, cost-effective and environmentally-friendly solution. Heavy metals occur naturally in the earth's crust and also result from anthropogenic activities. Due to the rapid increase in industrialization, there is an increase in consumer demands across various industries such as metal processing, mining sector, agricultural activities, etc. and this has led to an increase in heavy metal concentrations in the aqueous environment. Cellulose-based aerogels are a novel third-generation of aerogels that have recently attracted a lot of attention due to their high adsorption efficiency, eco-friendly prospects and cost effectiveness. In this review, recent literature on cellulose-based aerogel adsorbents used for the removal of heavy metals from aqueous solution has been compiled. The preparation of cellulose-based aerogels, adsorption mechanisms, effects of experimental factors such as pH, temperature, contact time, initial metal concentration and adsorbent dose have been discussed. In addition, cost analysis of cellulose-based adsorbents and some challenges in this research field along with recommendations of improvements have been presented. It can be concluded that functionalizing of cellulose-based aerogels with amine groups, thiol groups, other compounds such as nanobentonite and chitosan results in very high adsorption capacities. The adsorption studies revealed that pseudo-second-order kinetic model was the most commonly encountered adsorption kinetic model, and the most commonly encountered adsorption isotherm model was the Langmuir isotherm model. The main adsorption mechanisms were electrostatic interaction, complexation and ion exchange.
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Affiliation(s)
- Hina Iqbal Syeda
- Faculty of Science, Engineering and Built Environment, Deakin University, Victoria 3216, Australia.
| | - Pow-Seng Yap
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
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28
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Guastaferro M, Baldino L, Reverchon E, Cardea S. Production of Porous Agarose-Based Structures: Freeze-Drying vs. Supercritical CO 2 Drying. Gels 2021; 7:198. [PMID: 34842697 PMCID: PMC8628673 DOI: 10.3390/gels7040198] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 01/06/2023] Open
Abstract
In this work, the effect of two processes, i.e., freeze-drying and supercritical CO2 (SC-CO2) drying, on the final morphology of agarose-based porous structures, was investigated. The agarose concentration in water was varied from 1 wt% up to 8 wt%. Agarose cryogels were prepared by freeze-drying using two cooling rates: 2.5 °C/min and 0.1 °C/min. A more uniform macroporous structure and a decrease in average pore size were achieved when a fast cooling rate was adopted. When a slower cooling rate was performed instead, cryogels were characterized by a macroporous and heterogenous structure at all of the values of the biopolymer concentration investigated. SC-CO2 drying led to the production of aerogels characterized by a mesoporous structure, with a specific surface area up to 170 m2/g. Moreover, agarose-based aerogels were solvent-free, and no thermal changes were detected in the samples after processing.
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Affiliation(s)
| | - Lucia Baldino
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (M.G.); (E.R.); (S.C.)
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Mineralized self-assembled silk fibroin/cellulose interpenetrating network aerogel for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 134:112549. [DOI: 10.1016/j.msec.2021.112549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 11/01/2021] [Accepted: 11/10/2021] [Indexed: 12/28/2022]
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30
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Ferreira-Gonçalves T, Constantin C, Neagu M, Reis CP, Sabri F, Simón-Vázquez R. Safety and efficacy assessment of aerogels for biomedical applications. Biomed Pharmacother 2021; 144:112356. [PMID: 34710839 DOI: 10.1016/j.biopha.2021.112356] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/17/2021] [Accepted: 10/19/2021] [Indexed: 12/16/2022] Open
Abstract
The unique physicochemical properties of aerogels have made them an attractive class of materials for biomedical applications such as drug delivery, regenerative medicine, and wound healing. Their low density, high porosity, and ability to regulate the pore structure makes aerogels ideal nano/micro-structures for loading of drugs and active biomolecules. As a result of this, the number of in vitro and in vivo studies on the therapeutic efficacy of these porous materials has increased substantially in recent years and continues to be an area of great interest. However, data about their in vivo performance and safety is limited. Studies have shown that polymer-based, silica-based and some hybrid aerogels are generally regarded as safe but given that studies on the acute, subacute, and chronic toxicity for the majority of aerogel types is missing, more work is still needed. This review presents a comprehensive summary of different biomedical applications of aerogels proposed to date as well as new and innovative applications of aerogels in other areas such as decontamination. We have also reviewed their biological effect on cells and living organisms with a focus on therapeutic efficacy and overall safety (in vivo and in vitro).
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Affiliation(s)
- Tânia Ferreira-Gonçalves
- Research Institute for Medicines, iMed.ULisboa - Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Carolina Constantin
- Immunology Department, Victor Babes National Institute of Pathology, Bucharest 050096, Romania; Department of Pathology, Colentina University Hospital, Bucharest 020125, Romania.
| | - Monica Neagu
- Immunology Department, Victor Babes National Institute of Pathology, Bucharest 050096, Romania; Department of Pathology, Colentina University Hospital, Bucharest 020125, Romania.
| | - Catarina Pinto Reis
- Research Institute for Medicines, iMed.ULisboa - Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Instituto de Biofísica e Engenharia Biomédica, IBEB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - Firouzeh Sabri
- Department of Physics and Materials Science, University of Memphis, Memphis 38152, TN, United States.
| | - Rosana Simón-Vázquez
- CINBIO, Universidade de Vigo, Immunology Group, 36310 Vigo, Spain; Instituto de Investigación Sanitaria Galicia Sur (IIS Galicia Sur), SERGAS-UVIGO, Spain.
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31
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Miao F, Li Y, Tai Z, Zhang Y, Gao Y, Hu M, Zhu Q. Antimicrobial Peptides: The Promising Therapeutics for Cutaneous Wound Healing. Macromol Biosci 2021; 21:e2100103. [PMID: 34405955 DOI: 10.1002/mabi.202100103] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/31/2021] [Indexed: 12/12/2022]
Abstract
Chronic wound infections have caused an increasing number of deaths and economic burden, which necessitates wound treatment options. Hitherto, the development of functional wound dressings has achieved reasonable progress. Antibacterial agents, growth factors, and miRNAs are incorporated in different wound dressings to treat various types of wounds. As an effective antimicrobial agent and emerging wound healing therapeutic, antimicrobial peptides (AMPs) have attracted significant attention. The present study focuses on the application of AMPs in wound healing and discusses the types, properties and formulation strategies of AMPs used for wound healing. In addition, the clinical trial and the current status of studies on "antimicrobial peptides and wound healing" are elaborated through bibliometrics. Also, the challenges and opportunities for further development and utilization of AMP formulations in wound healing are discussed.
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Affiliation(s)
- Fengze Miao
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.,Shanghai Engineering Research Center for Topical Chinese Medicine, Shanghai, 200443, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, 201306, China
| | - Ying Li
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.,Shanghai Engineering Research Center for Topical Chinese Medicine, Shanghai, 200443, China
| | - Zongguang Tai
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.,Shanghai Engineering Research Center for Topical Chinese Medicine, Shanghai, 200443, China
| | - Yong Zhang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, 201306, China
| | - Yue Gao
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, 201306, China
| | - Menghong Hu
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.,Shanghai Engineering Research Center for Topical Chinese Medicine, Shanghai, 200443, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.,Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, 201306, China
| | - Quangang Zhu
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China.,Shanghai Engineering Research Center for Topical Chinese Medicine, Shanghai, 200443, China
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32
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Borges-Vilches J, Figueroa T, Guajardo S, Aguayo C, Fernández K. Improved hemocompatibility for gelatin-graphene oxide composite aerogels reinforced with proanthocyanidins for wound dressing applications. Colloids Surf B Biointerfaces 2021; 206:111941. [PMID: 34216847 DOI: 10.1016/j.colsurfb.2021.111941] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/14/2021] [Accepted: 06/22/2021] [Indexed: 11/16/2022]
Abstract
Aerogels based on gelatin and graphene oxide (GO) were synthesized by microwave-assisted reactions, incorporating grape skin extracts -high in proanthocyanidins (PAs)- to develop a hemostatic device with improved properties. The effects of incorporating PAs into the aerogels were investigated in relation to their physicochemical properties, absorption ability, clotting activity and cytotoxicity in human dermal fibroblast (HDF) cells. The aerogels presented highly resistant porous structures, capable of absorbing more than 50 times their weight when in contact with a phosphate saline solution (PBS) and fresh human blood. Interestingly, the addition of PAs increased the negative surface charges and the blood absorption ability of the aerogels, which may make them suitable for hemostasis. The incorporation of 5% and 10% (w/w) of extracts into the aerogels increased the total coagulated blood content by 36.6% and 24.5% compared with gelatin-GO aerogel, respectively. These improvements in the hemostatic properties of the aerogels were greater with the inclusion of 5% (w/w) of grape skin extracts into the aerogels. The aerogels were also able to adhere red blood cells onto their surfaces, which could favor the formation of stable fibrin networks to promote hemostasis. Their clotting activity suggested the activation of alternative routes based on complement coagulation systems. Finally, the aerogels were non-toxic for HDF cells and the PAs were successfully released from their matrices. Thus, gelatin-GO aerogels reinforced with PAs are promising as topical phytodrug delivery systems, with great potential for wound healing processes.
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Affiliation(s)
- Jessica Borges-Vilches
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Toribio Figueroa
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Sebastián Guajardo
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
| | - Claudio Aguayo
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, Universidad de Concepción, Concepción, Chile
| | - Katherina Fernández
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, Universidad de Concepción, Concepción, Chile.
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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: 24] [Impact Index Per Article: 8.0] [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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John JV, McCarthy A, Wang H, Luo Z, Li H, Wang Z, Cheng F, Zhang YS, Xie J. Freeze-Casting with 3D-Printed Templates Creates Anisotropic Microchannels and Patterned Macrochannels within Biomimetic Nanofiber Aerogels for Rapid Cellular Infiltration. Adv Healthc Mater 2021; 10:e2100238. [PMID: 34029004 PMCID: PMC8222158 DOI: 10.1002/adhm.202100238] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/07/2021] [Indexed: 01/08/2023]
Abstract
A new approach is described for fabricating 3D poly(ε-caprolactone) (PCL)/gelatin (1:1) nanofiber aerogels with patterned macrochannels and anisotropic microchannels by freeze-casting with 3D-printed sacrificial templates. Single layer or multiple layers of macrochannels are formed through an inverse replica of 3D-printed templates. Aligned microchannels formed by partially anisotropic freezing act as interconnected pores between templated macrochannels. The resulting macro-/microchannels within nanofiber aerogels significantly increase preosteoblast infiltration in vitro. The conjugation of vascular endothelial growth factor (VEGF)-mimicking QK peptide to PCL/gelatin/gelatin methacryloyl (1:0.5:0.5) nanofiber aerogels with patterned macrochannels promotes the formation of a microvascular network of seeded human microvascular endothelial cells. Moreover, nanofiber aerogels with patterned macrochannels and anisotropic microchannels show significantly enhanced cellular infiltration rates and host tissue integration compared to aerogels without macrochannels following subcutaneous implantation in rats. Taken together, this novel class of nanofiber aerogels holds great potential in biomedical applications including tissue repair and regeneration, wound healing, and 3D tissue/disease modeling.
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Affiliation(s)
- Johnson V. John
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Alec McCarthy
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Hongjun Wang
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Zeyu Luo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Hongbin Li
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Zixuan Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Feng Cheng
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Mechanical and Materials Engineering, College of Engineering, University of Nebraska Lincoln, Lincoln, NE 68588, USA
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Duong T, López-Iglesias C, Szewczyk PK, Stachewicz U, Barros J, Alvarez-Lorenzo C, Alnaief M, García-González CA. A Pathway From Porous Particle Technology Toward Tailoring Aerogels for Pulmonary Drug Administration. Front Bioeng Biotechnol 2021; 9:671381. [PMID: 34017828 PMCID: PMC8129550 DOI: 10.3389/fbioe.2021.671381] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/06/2021] [Indexed: 12/29/2022] Open
Abstract
Pulmonary drug delivery has recognized benefits for both local and systemic treatments. Dry powder inhalers (DPIs) are convenient, portable and environmentally friendly devices, becoming an optimal choice for patients. The tailoring of novel formulations for DPIs, namely in the form of porous particles, is stimulating in the pharmaceutical research area to improve delivery efficiency. Suitable powder technological approaches are being sought to design such formulations. Namely, aerogel powders are nanostructured porous particles with particularly attractive properties (large surface area, excellent aerodynamic properties and high fluid uptake capacity) for these purposes. In this review, the most recent development on powder technologies used for the processing of particulate porous carriers are described via updated examples and critically discussed. A special focus will be devoted to the most recent advances and uses of aerogel technology to obtain porous particles with advanced performance in pulmonary delivery.
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Affiliation(s)
- Thoa Duong
- 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, Santiago de Compostela, Spain
| | - Clara López-Iglesias
- 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, Santiago de Compostela, Spain
| | - Piotr K Szewczyk
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Krakow, Poland
| | - Urszula Stachewicz
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Krakow, Poland
| | - Joana Barros
- i3S - Instituto de Investigação e Inovação em Saúde da Universidade do Porto - Associação, INEB - Instituto de Engenharia Biomédica, FEUP - Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Carmen Alvarez-Lorenzo
- 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, Santiago de Compostela, Spain
| | - Mohammad Alnaief
- Department of Pharmaceutical and Chemical Engineering, Faculty of Applied Medical Sciences, German Jordanian University, Amman, Jordan
| | - Carlos A García-González
- 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, Santiago de Compostela, Spain
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Wang C, Ma R, Huang Z, Liu X, Wang T, Chen K. Preparation and characterization of carboxymethylcellulose based citric acid cross-linked magnetic aerogel as an efficient dye adsorbent. Int J Biol Macromol 2021; 181:1030-1038. [PMID: 33887293 DOI: 10.1016/j.ijbiomac.2021.04.078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/11/2021] [Accepted: 04/13/2021] [Indexed: 10/21/2022]
Abstract
A low-cost, collectable, and efficient material is essential for adsorbing water pollution, such as dyes and heavy metal ions pollution. In this work, we proposed a novel strategy for the preparation of an efficient and collectable magnetic aerogel as adsorbent for dye. The magnetic aerogels were prepared from sodium carboxymethylcellulose (CMC) hydrogel using citric acid (CA) as the crosslinker, followed by vacuum freeze-drying technique to obtain aerogels. The effects of magnetic Fe3O4 nanoparticle contents on the adsorption properties of the aerogels were investigated. The results show that the as-prepared magnetic composite aerogels exhibit porous structure and display good adsorption and collectable performance for methylene blue (MB) in water with the removal rate of 97.5% in 6 h. The maximum compress strength and absorption capacity of the magnetic aerogel with 1 wt% Fe3O4 nanoparticle loading for MB is 0.13 MPa and 83.6 mg/g, respectively. Aerogels with Fe3O4 nanoparticles exhibited magnetism which enables the aerogels to easily collect. This excellent structure stability and collectability guarantees long-term integrity and floatability of the magnetic aerogels in water.
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Affiliation(s)
- Chaoming Wang
- Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; Guangdong Provincial Key Laboratory of Distributed Energy Systems, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China.
| | - Ruiting Ma
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Zheng Huang
- Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Xing Liu
- Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Tingjun Wang
- Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Ke Chen
- Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
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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: 17] [Impact Index Per Article: 5.7] [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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Camani PH, Gonçalo MGM, Barbosa RFS, Rosa DS. Comprehensive insight of crosslinking agent concentration influence on starch‐based aerogels porous structure. J Appl Polym Sci 2021. [DOI: 10.1002/app.50863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Paulo H. Camani
- Center for Engineering, Modeling and Applied Social Sciences (CECS) Federal University of ABC (UFABC) Santo André São Paulo Brazil
| | - Maria G. M. Gonçalo
- Center for Engineering, Modeling and Applied Social Sciences (CECS) Federal University of ABC (UFABC) Santo André São Paulo Brazil
| | - Rennan F. S. Barbosa
- Center for Engineering, Modeling and Applied Social Sciences (CECS) Federal University of ABC (UFABC) Santo André São Paulo Brazil
| | - Derval S. Rosa
- Center for Engineering, Modeling and Applied Social Sciences (CECS) Federal University of ABC (UFABC) Santo André São Paulo Brazil
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Chen ZJ, Shi HH, Zheng L, Zhang H, Cha YY, Ruan HX, Zhang Y, Zhang XC. A new cancellous bone material of silk fibroin/cellulose dual network composite aerogel reinforced by nano-hydroxyapatite filler. Int J Biol Macromol 2021; 182:286-297. [PMID: 33838188 DOI: 10.1016/j.ijbiomac.2021.03.204] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 11/15/2022]
Abstract
Composites materials comprised of biopolymeric aerogel matrices and inorganic nano-hydroxyapatite (n-HA) fillers have received considerable attention in bone engineering. Although with significant progress in aerogel-based biomaterials, the brittleness and low strengths limit the application. The improvements in toughness and mechanical strength of aerogel-based biomaterials are in great need. In this work, an alkali urea system was used to dissolve, regenerate and gelate cellulose and silk fibroin (SF) to prepare composite aerosol. A dual network structure was shaped in the composite aerosol materials interlaced by sheet-like SF and reticular cellulose wrapping n-HA on the surface. Through uniaxial compression, the density of the composite aerogel material was close to the one of natural bone, and mechanical strength and toughness were high. Our work indicates that the composite aerogel has the same mechanical strength range as cancellous bone when the ratio of cellulose, n-HA and SF being 8:1:1. In vitro cell culture showed HEK-293T cells cultured on composite aerogels had high ability of adhesion, proliferation and differentiation. Totally, the presented biodegradable composite aerogel has application potential in bone tissue engineering.
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Affiliation(s)
- Zong-Ju Chen
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Hui-Hong Shi
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Liang Zheng
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, 163319 Daqing, China
| | - Hua Zhang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, 163319 Daqing, China
| | - Yu-Ying Cha
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Hui-Xian Ruan
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Yi Zhang
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Xiu-Cheng Zhang
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China.
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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: 83] [Impact Index Per Article: 27.7] [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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Affiliation(s)
- Wei Gao
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an P. R. China
| | - Dan Wen
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an P. R. China
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Revin VV, Nazarova NB, Tsareva EE, Liyaskina EV, Revin VD, Pestov NA. Production of Bacterial Cellulose Aerogels With Improved Physico-Mechanical Properties and Antibacterial Effect. Front Bioeng Biotechnol 2020; 8:603407. [PMID: 33344435 PMCID: PMC7738610 DOI: 10.3389/fbioe.2020.603407] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/13/2020] [Indexed: 12/13/2022] Open
Abstract
Aerogels have gained significant interest in recent decades because of their unique properties such as high porosity, low density, high surface area, and excellent heat and noise insulation. However, their high cost and low mechanical strength limit their practical application. We developed appropriate conditions to produce aerogels with controlled density, high mechanical strength, and thermal characteristics from bacterial cellulose (BC) synthesized by the strain Komagataeibacter sucrofermentans H-110. Aerogels produced using TEMPO oxidized BC (OBC) exhibited high mechanical strength and lower shrinkage than those from native bacterial cellulose (NBC). Compared to the NBC, the use of TEMPO-oxidized BC with oxidation degrees (OD) of 1.44 and 3.04% led to the reduction of shrinkage of the aerogels from 41.02 to 17.08%. The strength of the aerogel produced from the TEMPO-oxidized BC with an oxidation degree of 1.44% was twice that of the aerogel produced from NBC. The addition of Mg2+ at concentrations of 20 and 40 mM during the preparation of the aerogels increased the strength of the aerogels by 4.9 times. The combined use of TEMPO-oxidized BC and Mg2+ allowed pore size reduction from 1,375 to 197.4 μm on the outer part of the aerogels, thereby decreasing the thermal conductivity coefficient from 0.036 to 0.0176 W/(m•K). Furthermore, novel biocomposites prepared from the aerogels based on NBC and OBC and sodium fusidate, which have high antibiotic activity against Staphylococcus aureus, were obtained. Owing to their antibacterial properties, these aerogels can be used as functional biomaterials in a wide range of applications such as in tissue engineering and fabrication of wound dressing materials.
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Affiliation(s)
- Viktor V Revin
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Natalia B Nazarova
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Ekaterina E Tsareva
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Elena V Liyaskina
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Vadim D Revin
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Nikolay A Pestov
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
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Keil C, Hübner C, Richter C, Lier S, Barthel L, Meyer V, Subrahmanyam R, Gurikov P, Smirnova I, Haase H. Ca-Zn-Ag Alginate Aerogels for Wound Healing Applications: Swelling Behavior in Simulated Human Body Fluids and Effect on Macrophages. Polymers (Basel) 2020; 12:E2741. [PMID: 33218195 PMCID: PMC7699170 DOI: 10.3390/polym12112741] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/13/2020] [Accepted: 11/14/2020] [Indexed: 02/06/2023] Open
Abstract
Chronic non-healing wounds represent a substantial economic burden to healthcare systems and cause a considerable reduction in quality of life for those affected. Approximately 0.5-2% of the population in developed countries are projected to experience a chronic wound in their lifetime, necessitating further developments in the area of wound care materials. The use of aerogels for wound healing applications has increased due to their high exudate absorbency and ability to incorporate therapeutic substances, amongst them trace metals, to promote wound-healing. This study evaluates the swelling behavior of Ca-Zn-Ag-loaded alginate aerogels and their metal release upon incubation in human sweat or wound fluid substitutes. All aerogels show excellent liquid uptake from any of the formulas and high liquid holding capacities. Calcium is only marginally released into the swelling solvents, thus remaining as alginate bridging component aiding the absorption and fast transfer of liquids into the aerogel network. The zinc transfer quota is similar to those observed for common wound dressings in human and animal injury models. With respect to the immune regulatory function of zinc, cell culture studies show a high availability and anti-inflammatory activity of aerogel released Zn-species in RAW 264.7 macrophages. For silver, the balance between antibacterial effectiveness versus cytotoxicity remains a significant challenge for which the alginate aerogels need to be improved in the future. An increased knowledge of the transformations that alginate aerogels undergo in the course of the fabrication as well as during wound fluid exposure is necessary when aiming to create advanced, tissue-compatible aerogel products.
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Affiliation(s)
- Claudia Keil
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany; (C.H.); (C.R.); (S.L.)
| | - Christopher Hübner
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany; (C.H.); (C.R.); (S.L.)
| | - Constanze Richter
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany; (C.H.); (C.R.); (S.L.)
| | - Sandy Lier
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany; (C.H.); (C.R.); (S.L.)
| | - Lars Barthel
- Applied and Molecular Microbiology, Institute of Biotechnology, TU Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany; (L.B.); (V.M.)
| | - Vera Meyer
- Applied and Molecular Microbiology, Institute of Biotechnology, TU Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany; (L.B.); (V.M.)
| | - Raman Subrahmanyam
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany; (R.S.); (I.S.)
| | - Pavel Gurikov
- Laboratory for Development and Modelling of Novel Nanoporous Materials, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany;
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany; (R.S.); (I.S.)
| | - Hajo Haase
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany; (C.H.); (C.R.); (S.L.)
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Reyes-Peces MV, Pérez-Moreno A, de-los-Santos DM, Mesa-Díaz MDM, Pinaglia-Tobaruela G, Vilches-Pérez JI, Fernández-Montesinos R, Salido M, de la Rosa-Fox N, Piñero M. Chitosan-GPTMS-Silica Hybrid Mesoporous Aerogels for Bone Tissue Engineering. Polymers (Basel) 2020; 12:polym12112723. [PMID: 33212958 PMCID: PMC7698430 DOI: 10.3390/polym12112723] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/13/2020] [Accepted: 11/14/2020] [Indexed: 01/10/2023] Open
Abstract
This study introduces a new synthesis route for obtaining homogeneous chitosan (CS)-silica hybrid aerogels with CS contents up to 10 wt%, using 3-glycidoxypropyl trimethoxysilane (GPTMS) as coupling agent, for tissue engineering applications. Aerogels were obtained using the sol-gel process followed by CO2 supercritical drying, resulting in samples with bulk densities ranging from 0.17 g/cm3 to 0.38 g/cm3. The textural analysis by N2-physisorption revealed an interconnected mesopore network with decreasing specific surface areas (1230-700 m2/g) and pore sizes (11.1-8.7 nm) by increasing GPTMS content (2-4 molar ratio GPTMS:CS monomer). In addition, samples exhibited extremely fast swelling by spontaneous capillary imbibition in PBS solution, presenting swelling capacities from 1.75 to 3.75. The formation of a covalent crosslinked hybrid structure was suggested by FTIR and confirmed by an increase of four hundred fold or more in the compressive strength up to 96 MPa. Instead, samples synthesized without GPTMS fractured at only 0.10-0.26 MPa, revealing a week structure consisted in interpenetrated polymer networks. The aerogels presented bioactivity in simulated body fluid (SBF), as confirmed by the in vitro formation of hydroxyapatite (HAp) layer with crystal size of approximately 2 µm size in diameter. In vitro studies revealed also non cytotoxic effect on HOB® osteoblasts and also a mechanosensitive response. Additionally, control cells grown on glass developed scarce or no stress fibers, while cells grown on hybrid samples showed a significant (p < 0.05) increase in well-developed stress fibers and mature focal adhesion complexes.
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Affiliation(s)
- María V. Reyes-Peces
- Department of Condensed Matter Physics 1, Faculty of Science, University of Cadiz, 11510 Cádiz, Spain; (M.V.R.-P.); (A.P.-M.); (N.d.l.R.-F.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain; (G.P.-T.); (J.I.V.-P.); (R.F.-M.); (M.S.)
| | - A. Pérez-Moreno
- Department of Condensed Matter Physics 1, Faculty of Science, University of Cadiz, 11510 Cádiz, Spain; (M.V.R.-P.); (A.P.-M.); (N.d.l.R.-F.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain; (G.P.-T.); (J.I.V.-P.); (R.F.-M.); (M.S.)
| | | | - María del Mar Mesa-Díaz
- Department of Chemical Engineering, Faculty of Science University of Cadiz, 11510 Cádiz, Spain;
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), University of Cadiz, 11510 Cádiz, Spain
| | - Gonzalo Pinaglia-Tobaruela
- Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain; (G.P.-T.); (J.I.V.-P.); (R.F.-M.); (M.S.)
- Department of Histology, SCIBM, Faculty of Medicine University of Cadiz, 11004 Cádiz, Spain
| | - Jose Ignacio Vilches-Pérez
- Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain; (G.P.-T.); (J.I.V.-P.); (R.F.-M.); (M.S.)
- Department of Histology, SCIBM, Faculty of Medicine University of Cadiz, 11004 Cádiz, Spain
| | - Rafael Fernández-Montesinos
- Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain; (G.P.-T.); (J.I.V.-P.); (R.F.-M.); (M.S.)
- Department of Histology, SCIBM, Faculty of Medicine University of Cadiz, 11004 Cádiz, Spain
| | - Mercedes Salido
- Instituto de Investigación e Innovación Biomédica de Cádiz (INIBICA), 11009 Cádiz, Spain; (G.P.-T.); (J.I.V.-P.); (R.F.-M.); (M.S.)
- Department of Histology, SCIBM, Faculty of Medicine University of Cadiz, 11004 Cádiz, Spain
| | - Nicolás de la Rosa-Fox
- Department of Condensed Matter Physics 1, Faculty of Science, University of Cadiz, 11510 Cádiz, Spain; (M.V.R.-P.); (A.P.-M.); (N.d.l.R.-F.)
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), University of Cadiz, 11510 Cádiz, Spain
| | - Manuel Piñero
- Department of Condensed Matter Physics 1, Faculty of Science, University of Cadiz, 11510 Cádiz, Spain; (M.V.R.-P.); (A.P.-M.); (N.d.l.R.-F.)
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), University of Cadiz, 11510 Cádiz, Spain
- Correspondence:
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Elsherbiny DA, Abdelgawad AM, El-Naggar ME, El-Sherbiny RA, El-Rafie MH, El-Sayed IET. Synthesis, antimicrobial activity, and sustainable release of novel α-aminophosphonate derivatives loaded carrageenan cryogel. Int J Biol Macromol 2020; 163:96-107. [DOI: 10.1016/j.ijbiomac.2020.06.251] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/06/2020] [Accepted: 06/25/2020] [Indexed: 01/06/2023]
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