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Du K, Shi P, Zhao Z, Zhang D, Xiao Y, Cheng H, Zhang S. Flexible cellulose nanofiber aerogel with enhanced porous structure and its applications in copper(II) removal. Int J Biol Macromol 2024; 273:132778. [PMID: 38823741 DOI: 10.1016/j.ijbiomac.2024.132778] [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: 03/09/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
In order to achieve an aerogel with both rigid pore structures and desired flexibility, stiff carboxyl-functionalized cellulose nanofiber (CNFs) were introduced into a flexible polyvinyl alcohol-polyethyleneimine (PVA-PEI) crosslinking network, with 4-formylphenylboronic acid (4FPBA) bridging within the PVA-PEI network to enable dynamic boroxine and imine bond formation. The strong covalent bonds and hydrogen connections between CNF and the crosslinking network enhanced the wet stability of the aerogel while also contributed to its thermal stability. Importantly, the harmonious coordination between the stiff CNF and the flexible polymer chains not only facilitated aerogel flexibility but also enhanced its increased specific surface area by improving pore structure. Moreover, the inclusion of CNF enhanced the adsorption capacity of the aerogel, rendering it effective for removing heavy metal ions. The specific surface area and adsorption capacity for copper ions of the aerogel increased significantly with a 3 wt% addition CNF suspension, reaching 19.74 m2 g-1 and 60.28 mg g-1, respectively. These values represent a remarkable increase of 590.21 % and 213.96 %, respectively, compared to the blank aerogel. The CNF-enhanced aerogel in this study, characterized by its well-defined pore structures, and desired flexibility, demonstrates versatile applicability across multiple domains, including environmental protection, thermal insulation, electrode fabrication, and beyond.
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Affiliation(s)
- Keke Du
- Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Pengcheng Shi
- Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Zhilin Zhao
- Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Dongyan Zhang
- Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Yiyan Xiao
- Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Haitao Cheng
- Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Shuangbao Zhang
- Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China.
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Yang C, Li A, Guo T, Cheng J, Liu Z, Hu H, Wang J. Novel organic-inorganic composite pea protein silica food-grade aerogel materials: Fabrication, mechanisms, high oil-holding property and curcumin delivery capacity. Int J Biol Macromol 2024; 273:132832. [PMID: 38834123 DOI: 10.1016/j.ijbiomac.2024.132832] [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: 07/17/2023] [Revised: 02/20/2024] [Accepted: 05/30/2024] [Indexed: 06/06/2024]
Abstract
The fragility of the skeleton and poor bioaccessibility limit Silica aerogel's application in the food industry. In this study, composite gels were obtained by cross-linking pea proteins isolate (PPI) with Tetraethoxysilane (TEOS)to improve the bioavailability of silica-derived aerogels. It indicated that TEOS first condensed with H+ to form secondary particles and then complexed with PPI via hydroxyl groups to form a composite aerogel. Meanwhile, the PPI-Si composite aerogel formed a dense mesoporous structure with a specific surface area of 312.5 g/cm3. This resulted in a higher oil holding percentage of 89.67 % for the PPI (10 %)-Si aerogel, which was 34.1 % higher than other studies, leading to a more stable oleogel. Finally, as a delivery system, the composite oleogel not only could significantly increase the bioaccessibility rate by 27.4 % compared with silica aerogel, but also could efficiently inhibit the premature release of curcumin in the simulated gastric fluids, while allowed sustainably release in the simulated intestinal fluids. These results provided a theoretical basis for the application of silica-derived aerogels in food and non-food applications.
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Affiliation(s)
- Chen Yang
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Aitong Li
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - TianLai Guo
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jie Cheng
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Ziyun Liu
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Haiyue Hu
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jianming Wang
- College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
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Park S, Sharma H, Safdar M, Lee J, Kim W, Park S, Jeong HE, Kim J. Micro/nanoengineered agricultural by-products for biomedical and environmental applications. ENVIRONMENTAL RESEARCH 2024; 250:118490. [PMID: 38365052 DOI: 10.1016/j.envres.2024.118490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Agriculturally derived by-products generated during the growth cycles of living organisms as secondary products have attracted increasing interest due to their wide range of biomedical and environmental applications. These by-products are considered promising candidates because of their unique characteristics including chemical stability, profound biocompatibility and offering a green approach by producing the least impact on the environment. Recently, micro/nanoengineering based techniques play a significant role in upgrading their utility, by controlling their structural integrity and promoting their functions at a micro and nano scale. Specifically, they can be used for biomedical applications such as tissue regeneration, drug delivery, disease diagnosis, as well as environmental applications such as filtration, bioenergy production, and the detection of environmental pollutants. This review highlights the diverse role of micro/nano-engineering techniques when applied on agricultural by-products with intriguing properties and upscaling their wide range of applications across the biomedical and environmental fields. Finally, we outline the future prospects and remarkable potential that these agricultural by-products hold in establishing a new era in the realms of biomedical science and environmental research.
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Affiliation(s)
- Sunho Park
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Bio-Industrial Machinery Engineering, Pusan National University, Miryang, 50463, Republic of Korea
| | - Harshita Sharma
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Mahpara Safdar
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jeongryun Lee
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Woochan Kim
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Sangbae Park
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Biosystems Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hoon Eui Jeong
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
| | - Jangho Kim
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea; Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea.
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Alkhalidi HM, Alahmadi AA, Rizg WY, Yahya EB, H P S AK, Mushtaq RY, Badr MY, Safhi AY, Hosny KM. Revolutionizing Cancer Treatment: Biopolymer-Based Aerogels as Smart Platforms for Targeted Drug Delivery. Macromol Rapid Commun 2024; 45:e2300687. [PMID: 38430068 DOI: 10.1002/marc.202300687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/15/2024] [Indexed: 03/03/2024]
Abstract
Cancer stands as a leading cause of global mortality, with chemotherapy being a pivotal treatment approach, either alone or in conjunction with other therapies. The primary goal of these therapies is to inhibit the growth of cancer cells specifically, while minimizing harm to healthy dividing cells. Conventional treatments, often causing patient discomfort due to side effects, have led researchers to explore innovative, targeted cancer cell therapies. Thus, biopolymer-based aerogels emerge as innovative platforms, showcasing unique properties that respond intelligently to diverse stimuli. This responsiveness enables precise control over the release of anticancer drugs, enhancing therapeutic outcomes. The significance of these aerogels lies in their ability to offer targeted drug delivery with increased efficacy, biocompatibility, and a high drug payload. In this comprehensive review, the author discuss the role of biopolymer-based aerogels as an emerging functionalized platforms in anticancer drug delivery. The review addresses the unique properties of biopolymer-based aerogels showing their smart behavior in responding to different stimuli including temperature, pH, magnetic and redox potential to control anticancer drug release. Finally, the review discusses the application of different biopolymer-based aerogel in delivering different anticancer drugs and also discusses the potential of these platforms in gene delivery applications.
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Affiliation(s)
- Hala M Alkhalidi
- Department of Clinical Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Amerh Aiad Alahmadi
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Waleed Y Rizg
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
- Center of Innovation in Personalized Medicine, 3D Bioprinting Unit, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Esam Bashir Yahya
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
- Green Biopolymer, Coatings and Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
| | - Abdul Khalil H P S
- Green Biopolymer, Coatings and Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
| | - Rayan Y Mushtaq
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Moutaz Y Badr
- Department of Pharmaceutical Sciences, College of Pharmacy, Umm Al-Qura University, Makkah, 24381, Saudi Arabia
| | - Awaji Y Safhi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Khaled M Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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Xiong Z, Peng G, Deng J, Liu M, Ning X, Zhuang Y, Yang H, Sun H. Therapeutic targets and potential delivery systems of melatonin in osteoarthritis. Front Immunol 2024; 15:1331934. [PMID: 38327517 PMCID: PMC10847247 DOI: 10.3389/fimmu.2024.1331934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/04/2024] [Indexed: 02/09/2024] Open
Abstract
Osteoarthritis (OA) is a highly prevalent age-related musculoskeletal disorder that typically results in chronic pain and disability. OA is a multifactorial disease, with increased oxidative stress, dysregulated inflammatory response, and impaired matrix metabolism contributing to its onset and progression. The neurohormone melatonin, primarily synthesized by the pineal gland, has emerged as a promising therapeutic agent for OA due to its potential to alleviate inflammation, oxidative stress, and chondrocyte death with minimal adverse effects. The present review provides a comprehensive summary of the current understanding regarding melatonin as a promising pharmaceutical agent for the treatment of OA, along with an exploration of various delivery systems that can be utilized for melatonin administration. These findings may provide novel therapeutic strategies and targets for inhibiting the advancement of OA.
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Affiliation(s)
- Zhilin Xiong
- Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Guoxuan Peng
- Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jin Deng
- Department of Emergence Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Miao Liu
- Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Xu Ning
- Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yong Zhuang
- Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hua Yang
- Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hong Sun
- Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
- Department of Emergence Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
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6
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Cretu C, Nicola R, Marinescu SA, Picioruș EM, Suba M, Duda-Seiman C, Len A, Illés L, Horváth ZE, Putz AM. Performance of Zr-Based Metal-Organic Framework Materials as In Vitro Systems for the Oral Delivery of Captopril and Ibuprofen. Int J Mol Sci 2023; 24:13887. [PMID: 37762192 PMCID: PMC10531200 DOI: 10.3390/ijms241813887] [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: 07/18/2023] [Revised: 08/30/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Zr-based metal-organic framework materials (Zr-MOFs) with increased specific surface area and pore volume were obtained using chemical (two materials, Zr-MOF1 and Zr-MOF3) and solvothermal (Zr-MOF2) synthesis methods and investigated via FT-IR spectroscopy, TGA, SANS, PXRD, and SEM methods. The difference between Zr-MOF1 and Zr-MOF3 lies in the addition of reactants during synthesis. Nitrogen porosimetry data indicated the presence of pores with average dimensions of ~4 nm; using SANS, the average size of the Zr-MOF nanocrystals was suggested to be approximately 30 nm. The patterns obtained through PXRD were characterized by similar features that point to well-crystallized phases specific for the UIO-66 type materials; SEM also revealed that the materials were composed of small and agglomerate crystals. Thermogravimetric analysis revealed that both materials had approximately two linker deficiencies per Zr6 formula unit. Captopril and ibuprofen loading and release experiments in different buffered solutions were performed using the obtained Zr-based metal-organic frameworks as drug carriers envisaged for controlled drug release. The carriers demonstrated enhanced drug-loading capacity and showed relatively good results in drug delivery. The cumulative percentage of drug release in phosphate-buffered solution at pH 7.4 was higher than that in buffered solution at pH 1.2. The release rate could be controlled by changing the pH of the releasing solution. Different captopril release behaviors were observed when the experiments were performed using a permeable dialysis membrane.
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Affiliation(s)
- Carmen Cretu
- “Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazu, No. 24, 300223 Timisoara, Romania; (C.C.); (R.N.); (S.-A.M.); (E.-M.P.); (M.S.)
| | - Roxana Nicola
- “Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazu, No. 24, 300223 Timisoara, Romania; (C.C.); (R.N.); (S.-A.M.); (E.-M.P.); (M.S.)
| | - Sorin-Alin Marinescu
- “Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazu, No. 24, 300223 Timisoara, Romania; (C.C.); (R.N.); (S.-A.M.); (E.-M.P.); (M.S.)
| | - Elena-Mirela Picioruș
- “Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazu, No. 24, 300223 Timisoara, Romania; (C.C.); (R.N.); (S.-A.M.); (E.-M.P.); (M.S.)
| | - Mariana Suba
- “Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazu, No. 24, 300223 Timisoara, Romania; (C.C.); (R.N.); (S.-A.M.); (E.-M.P.); (M.S.)
| | - Corina Duda-Seiman
- Biology-Chemistry Department, West University of Timisoara, Johann Heinrich Pestalozzi No. 16, 300115 Timisoara, Romania;
| | - Adel Len
- Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege Miklós Út 29-33, 1121 Budapest, Hungary;
- Faculty of Engineering and Information Technology, University of Pécs, Boszorkány Street 2, 7624 Pécs, Hungary
| | - Levente Illés
- Institute for Technical Physics and Material Science, Centre for Energy Research, Konkoly-Thege Út 29-33, 1121 Budapest, Hungary; (L.I.); (Z.E.H.)
| | - Zsolt Endre Horváth
- Institute for Technical Physics and Material Science, Centre for Energy Research, Konkoly-Thege Út 29-33, 1121 Budapest, Hungary; (L.I.); (Z.E.H.)
| | - Ana-Maria Putz
- “Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazu, No. 24, 300223 Timisoara, Romania; (C.C.); (R.N.); (S.-A.M.); (E.-M.P.); (M.S.)
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Zhu Y, Li H, Peng C, Ma J, Huang S, Wang R, Wu B, Xiong Q, Peng D, Huang S, Chen J. Application of protein/polysaccharide aerogels in drug delivery system: A review. Int J Biol Macromol 2023; 247:125727. [PMID: 37429347 DOI: 10.1016/j.ijbiomac.2023.125727] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/19/2023] [Accepted: 07/05/2023] [Indexed: 07/12/2023]
Abstract
Drug delivery systems have emerged as a prominent research focus in the field of drug development, offering enhanced stability and improved bioavailability. Among them, protein (silk, gelatin and whey) or polysaccharide (alginate, chitosan, cellulose, starch, pectin and carrageenan) aerogels derived from natural sources have gained increasing popularity due to their unique advantages, such as cost-effectiveness, flexible preparation, bioactivity, biocompatibility, and biodegradability. However, despite their growing significance, there remains a lack of comprehensive information and ongoing confusion regarding the application of protein/polysaccharide aerogels in drug delivery system. Hence, the objective of this review was to provide a comprehensive review of the research progress in protein/polysaccharide aerogels for drug delivery systems from the perspective of aerogels category, synthesis strategy, drug-loading method, performance characteristic and release mechanism. Furthermore, by consolidating the existing information, we aimed to present our own perspectives and insights on the future development of protein/polysaccharide aerogels in drug delivery system. In conclusion, this comprehensive review served as a valuable resource for researchers and scholars, addressing the current gaps in knowledge and clarifying the complex landscape of protein/polysaccharide aerogels in drug delivery system.
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Affiliation(s)
- Yong Zhu
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huai'an 223003, PR China; National Engineering Research Center for Modernization of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Hailun Li
- Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223002, PR China
| | - Can Peng
- School of Pharmacy, Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Anhui University of Chinese Medicine, Hefei 230012, PR China
| | - Jingrui Ma
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Shaojun Huang
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Ruijie Wang
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Bingmin Wu
- National Engineering Research Center for Modernization of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
| | - Qingping Xiong
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huai'an 223003, PR China; Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an 223003, PR China.
| | - Daiyin Peng
- School of Pharmacy, Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Anhui University of Chinese Medicine, Hefei 230012, PR China.
| | - Song Huang
- National Engineering Research Center for Modernization of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China.
| | - Jing Chen
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huai'an 223003, PR China.
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8
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Biomedical applications of silica-based aerogels: a comprehensive review. Macromol Res 2023. [DOI: 10.1007/s13233-023-00142-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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9
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Reyes-Peces MV, Fernández-Montesinos R, Mesa-Díaz MDM, Vilches-Pérez JI, Cárdenas-Leal JL, de la Rosa-Fox N, Salido M, Piñero M. Structure-Related Mechanical Properties and Bioactivity of Silica-Gelatin Hybrid Aerogels for Bone Regeneration. Gels 2023; 9:gels9010067. [PMID: 36661833 PMCID: PMC9858756 DOI: 10.3390/gels9010067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
We report the synthesis of mesoporous silica-gelatin hybrid aerogels with 15, 25, and 30 wt. % gelatin contents, using 3-glycidoxypropyl trimethoxysilane (GPTMS) as a coupling agent, for tissue-engineering applications. Aerogels were obtained using a one-step sol-gel process followed by CO2 supercritical drying, resulting in crack-free monolith samples with bulk densities ranging from 0.41 g cm-3 to 0.66 g cm-3. Nitrogen adsorption measurements revealed an interconnected mesopore network and a general decrease in the textural parameters: specific surface areas (651-361 m2 g-1), pore volume (1.98-0.89 cm3 g-1), and pore sizes (10.8-8.6 nm), by increasing gelatin content. Thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy and uniaxial compression experiments confirmed that the structure, thermal properties and mechanical behavior of these aerogels changed significantly when the concentration of gelatin reached 25 wt.%, suggesting that this composition corresponds to the percolation threshold of the organic phase. In addition, the samples exhibited hydrophilic behavior and extremely fast swelling in phosphate-buffered saline (PBS), with swelling ratios from 2.32 to 3.32. Furthermore, in vitro bioactivity studies revealed a strong relationship between the kinetics of the nucleation and growth processes of hydroxyapatite in simulated body fluid (SBF) and the gelatin content. The live/dead assay revealed no cytotoxicity in HOB® osteoblasts in vitro and a positive influence on cell growth, focal adhesion development, and cytoskeletal arrangement for cell adhesion. Mineralization assays confirmed the positive effects of the samples on osteoblast differentiation. The biomaterials described are versatile, can be easily sterilized and are suitable for a wide range of applications in bone tissue-engineering, either alone or in combination with bioactive-reinforced phases.
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Affiliation(s)
- María V. Reyes-Peces
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
| | - Rafael Fernández-Montesinos
- Departamento de Histología, SCIBM, Facultad de Medicina, Universidad de Cádiz, 11004 Cádiz, Spain
- Instituto de Biomedicina de Cádiz, (INIBICA), Universidad de Cadiz, 11510 Puerto Real, Spain
| | - María del Mar Mesa-Díaz
- Departamento de Ingeniería Química, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), Universidad de Cadiz, 11510 Puerto Real, Spain
| | - José Ignacio Vilches-Pérez
- Departamento de Histología, SCIBM, Facultad de Medicina, Universidad de Cádiz, 11004 Cádiz, Spain
- Instituto de Biomedicina de Cádiz, (INIBICA), Universidad de Cadiz, 11510 Puerto Real, Spain
| | - Jose Luis Cárdenas-Leal
- Departamento de Física Aplicada, Escuela Superior de Ingeniería, Universidad de Cádiz, 11510 Puerto Real, Spain
| | - Nicolás de la Rosa-Fox
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), Universidad de Cadiz, 11510 Puerto Real, Spain
| | - Mercedes Salido
- Departamento de Histología, SCIBM, Facultad de Medicina, Universidad de Cádiz, 11004 Cádiz, Spain
- Instituto de Biomedicina de Cádiz, (INIBICA), Universidad de Cadiz, 11510 Puerto Real, Spain
| | - Manuel Piñero
- Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Spain
- Instituto de Microscopía Electrónica y Materiales (IMEYMAT), Universidad de Cadiz, 11510 Puerto Real, Spain
- Correspondence:
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10
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Preparation of Protein Aerogel Particles for the Development of Innovative Drug Delivery Systems. Gels 2022; 8:gels8120765. [PMID: 36547289 PMCID: PMC9777701 DOI: 10.3390/gels8120765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022] Open
Abstract
The research was oriented towards the preparation of aerogel particles based on egg white and whey protein isolate using various dispersion methods: dripping, spraying, and homogenization. Based on the results of analytical studies, the most appropriate samples were selected to obtain aerogels loaded with the drug. The results of the experimental research were used to study methods for obtaining nasal drug delivery systems based on aerogels. Protein aerogels were obtained by thermal gelation followed by supercritical drying. The obtained particles of protein aerogels have a specific surface area of up to 350 m2/g with a pore volume of up to 2.9 cm3/g, as well as a porosity of up to 95%. The results of experimental studies have shown that changing the dispersion method makes it possible to control the structural characteristics of protein aerogel particles. The results of the studies were applied to obtain innovative nasal drug delivery systems for the treatment of socially significant diseases. Analytical studies were conducted to determine the amount and state of adsorbed drugs in protein aerogel particles, as well as in vivo experiments on the distribution of clomipramine in blood plasma and brain tissue of rats to study the pharmacokinetics and bioavailability of the resulting drug-loaded protein aerogel.
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11
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The effect of gelatin as pore expander in green synthesis mesoporous silica for methylene blue adsorption. Sci Rep 2022; 12:15271. [PMID: 36088488 PMCID: PMC9464223 DOI: 10.1038/s41598-022-19615-5] [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: 05/09/2022] [Accepted: 08/31/2022] [Indexed: 11/08/2022] Open
Abstract
AbstractMesoporous silica NSG had been synthesized while employing gelatin as a natural template to successfully increase the particle size and expand the pore diameter of NSG. All silica samples exhibited a similar XRD pattern with a broad peak centred at 2θ = 22.9°, as the characteristic of amorphous silica. FTIR results showed that the reduction of Si–O–Si symmetric stretching vibrations at 1075 cm−1 was due to the use of a high percentage of gelatin. Moreover, TEM analysis displayed the mesoporous channels in the form of a honeycomb structure with a diameter of ± 6 nm. Gelatin enhanced the surface area of silica from 467 to 510 m2/g, the pore volume from 0.64 to 0.72 cc/g and expanded the pore diameter from 3.5 nm to 6.0 nm. The expansion of the ordered mesopores with the increase of P123: gelatin ratios was elucidated by the pore size distribution. The adsorption capacity of methylene blue (MB) was improved on mesoporous silica with an expanded pore dimension to give 168 mg/g adsorption capacity within 70 min.
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12
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Supercritical Fluid Technologies for the Incorporation of Synthetic and Natural Active Compounds into Materials for Drug Formulation and Delivery. Pharmaceutics 2022; 14:pharmaceutics14081670. [PMID: 36015296 PMCID: PMC9413081 DOI: 10.3390/pharmaceutics14081670] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 11/25/2022] Open
Abstract
Various active compounds isolated from natural sources exhibit remarkable benefits, making them attractive for pharmaceutical and biomedical applications, such as antioxidant, antimicrobial, and anti-inflammatory activities, which contribute to the treatment of cardiovascular diseases, neurodegenerative disorders, various types of cancer, diabetes, and obesity. However, their major drawbacks are their reactivity, instability, relatively poor water solubility, and consequently low bioavailability. Synthetic drugs often face similar challenges associated with inadequate solubility or burst release in gastrointestinal media, despite being otherwise a safe and effective option for the treatment of numerous diseases. Therefore, drug-eluting pharmaceutical formulations have been of great importance over the years in efforts to improve the bioavailability of active compounds by increasing their solubility and achieving their controlled release in body media. This review highlights the success of the fabrication of micro- and nanoformulations using environmentally friendly supercritical fluid technologies for the processing and incorporation of active compounds. Several novel approaches, namely micronization to produce micro- and nano-sized particles, supercritical drying to produce aerogels, supercritical foaming, and supercritical solvent impregnation, are described in detail, along with the currently available drug delivery data for these formulations.
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13
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Horvat G, Pantić M, Knez Ž, Novak Z. A Brief Evaluation of Pore Structure Determination for Bioaerogels. Gels 2022; 8:gels8070438. [PMID: 35877523 PMCID: PMC9316429 DOI: 10.3390/gels8070438] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/01/2022] [Accepted: 07/11/2022] [Indexed: 01/03/2023] Open
Abstract
This review discusses the most commonly employed methods for determining pore size and pore size distribution in bioaerogels. Aerogels are materials with high porosity and large surface areas. Most of their pores are in the range of mesopores, between 2 and 50 nm. They often have smaller or larger pores, which presents a significant challenge in determining the exact mean pore size and pore size distribution in such materials. The precision and actual value of the pore size are of considerable importance since pore size and pore size distribution are among the main properties of aerogels and are often directly connected with the final application of those materials. However, many recently published papers discuss or present pore size as one of the essential achievements despite the misinterpretation or the wrong assignments of pore size determination. This review will help future research and publications evaluate the pore size of aerogels more precisely and discuss it correctly. The study covers methods such as gas adsorption, from which BJH and DFT models are often used, SEM, mercury porosimetry, and thermoporometry. The methods are described, and the results obtained are discussed. The following paper shows that there is still no precise method for determining pore size distribution or mean pore size in aerogels until now. Knowing that, it is expected that this field will evolve in the future.
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Affiliation(s)
- Gabrijela Horvat
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia; (G.H.); (M.P.); (Ž.K.)
| | - Milica Pantić
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia; (G.H.); (M.P.); (Ž.K.)
| | - Željko Knez
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia; (G.H.); (M.P.); (Ž.K.)
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Zoran Novak
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia; (G.H.); (M.P.); (Ž.K.)
- Correspondence:
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14
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Torrejon VM, Song J, Yu Z, Hang S. Gelatin-based cellular solids: Fabrication, structure and properties. J CELL PLAST 2022. [DOI: 10.1177/0021955x221087602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Although most cellular polymers are made from thermoplastics using different foaming technologies, gelatin and many other natural polymers can form hydrogels and convert them to cellular solids using various techniques, many of which differ from traditional plastic foaming, and so does their resulting structures. Cellular solids from natural hydrogels are porous materials that often exhibit a combination of desirable properties, including high specific surface area, biochemical activity, as well as thermal and acoustic insulation properties. Among natural hydrogels, gelatin-based porous materials are widely explored due to their availability, biocompatibility, biodegradability and relatively low cost. In addition, gelatin-based cellular solids have outstanding properties and are currently subject to increasing scientific research due to their potential in many applications, such as biocompatible cellular materials or biofoams to facilitate waste treatment. This article aims at providing a comprehensive review of gelatin cellular solids processing and their processing-properties-structure relationship. The fabrication techniques covered include aerogels production, mechanical foaming, blowing agents use, 3D printing, electrospinning and particle leaching methods. It is hoped that the assessment of their characteristics provides compiled information and guidance for selecting techniques and optimization of processing conditions to control material structure and properties to meet the needs of the finished products.
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Affiliation(s)
- Virginia Martin Torrejon
- Media and Communication School, Shenzhen Polytechnic, Shenzhen, China
- Department of Applied Chemistry, School of Science, Xi’an Jiaotong University, Xi’an, China
- Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Jim Song
- School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, China
| | - Zhang Yu
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an, China
| | - Song Hang
- School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen, China
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15
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The Effect of Zinc Oxide Supported on Gelatin Mesoporous Silica (GSBA-15) on Structural Character and Their Methylene Blue Photodegradation Performance. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2022. [DOI: 10.9767/bcrec.17.2.13712.363-374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Gelatin mesoporous silica SBA-15 (GSBA-15) with rod-like morphology has been successfully synthesized by hydrothermal method using P-123:gelatin, then aged at 90 °C for 24 h and calcined at 550 °C for 5 h. GSBA-15 was impregnated with ZnO amounts of 1; 5; and 10 wt% to obtain Zn/GSBA-15. Samples were characterized by X-ray Diffraction (XRD), Fourier Transform Infra Red (FTIR), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET). The efficiency of methylene blue photodegradation was determined by a UV-Vis spectrophotometer. The FTIR result is functional groups of ZnO/GSBA-15, those were Si−O−Si, −OH, Zn−OH, and Zn−O. The morphology of ZnO/GSBA-15 was rod-like, and it consisted of silica, oxygen, and Zn. The surface area and pore volume of GSBA-15 declined (surface area from 520.8 to 351.9 m2/g and pore volume from 0.707 to 0.564 cm3/g) after ZnO impregnation due to pore blocking. At the same time, increasing pore diameter (from 2.82 nm to 3.19 nm) and crystallite size (from 5.1 nm to 12.6 nm) were observed due to the overlapping of ZnO-Silica particles. The increasing incorporation of ZnO on the silica GSBA-15 framework increases the photodegradation performance from 88.76% to 94.90% due to the high surface area, functional group rich, and dispersion of ZnO active sites. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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16
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Zhao Y, Shao G, Liu X, Li Z. Assessment of the Therapeutic Potential of Melatonin for the Treatment of Osteoporosis Through a Narrative Review of Its Signaling and Preclinical and Clinical Studies. Front Pharmacol 2022; 13:866625. [PMID: 35645810 PMCID: PMC9130700 DOI: 10.3389/fphar.2022.866625] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/06/2022] [Indexed: 12/21/2022] Open
Abstract
Melatonin is a bioamine produced primarily in the pineal gland, although peripheral sites, including the gut, may also be its minor source. Melatonin regulates various functions, including circadian rhythm, reproduction, temperature regulation, immune system, cardiovascular system, energy metabolism, and bone metabolism. Studies on cultured bone cells, preclinical disease models of bone loss, and clinical trials suggest favorable modulation of bone metabolism by melatonin. This narrative review gives a comprehensive account of the current understanding of melatonin at the cell/molecular to the systems levels. Melatonin predominantly acts through its cognate receptors, of which melatonin receptor 2 (MT2R) is expressed in mesenchymal stem cells (MSCs), osteoblasts (bone-forming), and osteoclasts (bone-resorbing). Melatonin favors the osteoblastic fate of MSCs, stimulates osteoblast survival and differentiation, and inhibits osteoclastogenic differentiation of hematopoietic stem cells. Produced from osteoblastic cells, osteoprotegerin (OPG) and receptor activator of nuclear factor kappa B ligand (RANKL) critically regulate osteoclastogenesis and melatonin by suppressing the osteoclastogenic RANKL, and upregulating the anti-osteoclastogenic OPG exerts a strong anti-resorptive effect. Although the anti-inflammatory role of melatonin favors osteogenic function and antagonizes the osteoclastogenic function with the participation of SIRT signaling, various miRNAs also mediate the effects of the hormone on bone cells. In rodent models of osteoporosis, melatonin has been unequivocally shown to have an anti-osteoporotic effect. Several clinical trials indicate the bone mass conserving effect of melatonin in aging/postmenopausal osteoporosis. This review aims to determine the possibility of melatonin as a novel class of anti-osteoporosis therapy through the critical assessment of the available literature.
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Affiliation(s)
- Yongchao Zhao
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Guoxi Shao
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Xingang Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Zhengwei Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
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17
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Xu B, Luo Z, Wang D, Huang Z, Zhou Z, Wang H. In vitro and in vivo Repair Effects of the NCF-Col-NHA Aerogel Scaffold Loaded With SOST Monoclonal Antibody and SDF-1 in Steroid-Induced Osteonecrosis. Front Bioeng Biotechnol 2022; 10:825231. [PMID: 35372296 PMCID: PMC8964358 DOI: 10.3389/fbioe.2022.825231] [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: 11/30/2021] [Accepted: 02/11/2022] [Indexed: 02/05/2023] Open
Abstract
In the current study, we synthesized nanocellulose (NCF)-collagen (Col)-nano hydroxyapatite (NHA) organic-inorganic hybrid aerogels loaded with stromal cell derived factor-1 (SDF-1) and sclerostin monoclonal antibody (SOST McAb) and investigated their ability to repair steroid-induced osteonecrosis. Rabbit bone marrow mesenchymal stem cells (BMSCs) and human vascular endothelial cells (HUVECs) were used for the in vitro study. A rabbit steroid-induced osteonecrosis model was used for the in vivo study. The best elastic modulus reached 12.95 ± 4.77 MPa with a mean compressive property of 0.4067 ± 0.084 MPa for the scaffold containing 100% mass fraction. The average pore diameter of the aerogel was 75 ± 18 µm with a porosity of more than 90% (96.4 ± 1.6%). The aerogel-loaded SDF-1 and SOST were released at 40–50% from the material within the initial 3 h and maintained a stable release for more than 21 days. The in vitro study showed osteogenesis and vascularization capabilities of the scaffold. The in vivo study showed that rabbits received implantation of the scaffold with SOST McAb and SDF-1 showed the best osteogenesis of the osteonecrosis zone in the femoral head. Imaging examination revealed that most of the necrotic area of the femoral head was repaired. These results suggest that this hybrid aerogel scaffold could be used for future steroid-induced osteonecrosis repair.
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Affiliation(s)
- Bing Xu
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China.,Department of Orthopaedic Surgery, Chengdu Second People's Hospital, ChengDu, China
| | - Zeyu Luo
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Duan Wang
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Zeyu Huang
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Zongke Zhou
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Haoyang Wang
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
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18
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Abdullah, Zou Y, Farooq S, Walayat N, Zhang H, Faieta M, Pittia P, Huang Q. Bio-aerogels: Fabrication, properties and food applications. Crit Rev Food Sci Nutr 2022; 63:6687-6709. [PMID: 35156465 DOI: 10.1080/10408398.2022.2037504] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Traditional inorganic aerogels sustainability, biodegradability, and environmental safety concerns have driven researchers to find their safe green alternatives. Recently, interest in the application of bio-aerogels has rapidly increased in the food industry due to their unique characteristics such as high specific surface area and porosity, ultralow density, tunable pore size and morphology, and superior properties (physicochemical, mechanical, and functional). Bio-aerogels, a special category of highly porous unique materials, fabricated by the sol-gel method followed by drying processes, comprising three-dimensional networks of interconnected biopolymers (e.g., polysaccharides and proteins) with numerous air-filled pores. The production of bio-aerogels begins with the formation of a homogeneously dispersed precursor solution, followed by gelation and wet gel drying procedures by employing special drying techniques including atmospheric-, freeze-, and supercritical drying. Due to their special properties, bio-aerogels have emerged as sustainable biomaterial for many industrial applications, i.e., encapsulation and controlled delivery, active packaging, heavy metals separation, water and air filtration, oleogels, and biosensors. Bio-aerogels are low-cost, biocompatible, and biodegradable sustainable material that can be used in improving the processing, storage, transportation, and bioavailability of food additives, functional ingredients, and bioactive substances for their health benefits with enhanced shelf-life.
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Affiliation(s)
- Abdullah
- Guangdong Provincial Key Laboratory of Functional Food Active Substances, College of Food Science, South China Agricultural University, Guangzhou, China
| | - YuCheng Zou
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Shahzad Farooq
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Noman Walayat
- Department of Food Science and Engineering, College of Ocean, Zhejiang University of Technology, Hangzhou, China
| | - Hui Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
| | - Marco Faieta
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy
| | - Paola Pittia
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy
| | - Qingrong Huang
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
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19
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Depta PN, Gurikov P, Schroeter B, Forgács A, Kalmár J, Paul G, Marchese L, Heinrich S, Dosta M. DEM-Based Approach for the Modeling of Gelation and Its Application to Alginate. J Chem Inf Model 2021; 62:49-70. [PMID: 34936761 DOI: 10.1021/acs.jcim.1c01076] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The gelation of biopolymers is of great interest in the material science community and has gained increasing relevance in the past few decades, especially in the context of aerogels─lightweight open nanoporous materials. Understanding the underlying gel structure and influence of process parameters is of great importance to predict material properties such as mechanical strength. In order to improve understanding of the gelation mechanism in aqueous solution, this work presents a novel approach based on the discrete element method for the mesoscale for modeling gelation of hydrogels, similarly to an extremely coarse-grained molecular dynamics (MD) approach. For this, polymer chains are abstracted as dimer units connected by flexible bonds and interactions between units and with the environment, that is, diffusion in implicit water, are described. The model is based on Langevin dynamics and includes an implicit probabilistic ion model to capture the effects of ion availability during ion-mediated gelation. The model components are fully derived and parameterized using literature data and theoretical considerations based on a simplified representation of atomistic processes. The presented model enables investigations of the higher-scale network formation during gelation on the micrometer and millisecond scale, which are beyond classical modeling approaches such as MD. As a model system, calcium-mediated alginate gelation is investigated including the influence of ion concentration, polymer composition, polymer concentration, and molecular weight. The model is verified against numerous literature data as well as own experimental results for the corresponding Ca-alginate hydrogels using nitrogen porosimetry, NMR cryoporometry, and small-angle neutron scattering. The model reproduces both bundle size and pore size distribution in a reasonable agreement with the experiments. Overall, the modeling approach paves the way to physically motivated design of alginate gels.
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Affiliation(s)
- Philipp Nicolas Depta
- Institute of Solids Process Engineering and Particle Technology, Hamburg University of Technology, 21073 Hamburg, Germany
| | - Pavel Gurikov
- Laboratory for Development and Modeling of Novel Nanoporous Materials, Hamburg University of Technology, 21 073 Hamburg, Germany
| | - Baldur Schroeter
- Institute for Thermal Separation Processes, Hamburg University of Technology, 21 073 Hamburg, Germany
| | - Attila Forgács
- Department of Inorganic and Analytical Chemistry, MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, University of Debrecen, H-4032 Debrecen, Hungary
| | - József Kalmár
- Department of Inorganic and Analytical Chemistry, MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, University of Debrecen, H-4032 Debrecen, Hungary
| | - Geo Paul
- Department of Science and Technological Innovation, Universitá del Piemonte Orientale, 15 121 Alessandria, Italy
| | - Leonardo Marchese
- Department of Science and Technological Innovation, Universitá del Piemonte Orientale, 15 121 Alessandria, Italy
| | - Stefan Heinrich
- Institute of Solids Process Engineering and Particle Technology, Hamburg University of Technology, 21073 Hamburg, Germany
| | - Maksym Dosta
- Institute of Solids Process Engineering and Particle Technology, Hamburg University of Technology, 21073 Hamburg, Germany
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20
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Len A, Paladini G, Románszki L, Putz AM, Almásy L, László K, Bálint S, Krajnc A, Kriechbaum M, Kuncser A, Kalmár J, Dudás Z. Physicochemical Characterization and Drug Release Properties of Methyl-Substituted Silica Xerogels Made Using Sol-Gel Process. Int J Mol Sci 2021; 22:9197. [PMID: 34502104 PMCID: PMC8430635 DOI: 10.3390/ijms22179197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/21/2021] [Accepted: 08/22/2021] [Indexed: 12/14/2022] Open
Abstract
In this work, a multi-analytical approach involving nitrogen porosimetry, small angle neutron and X-ray scattering, Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies, X-ray diffraction, thermal analysis and electron microscopy was applied to organically modified silica-based xerogels obtained through the sol-gel process. Starting from a tetraethoxysilane (TEOS) precursor, methyltriethoxysilane (MTES) was added to the reaction mixture at two different pH values (2.0 and 4.5) producing hybrid xerogels with different TEOS/MTES molar ratios. Significant differences in the structure were revealed in terms of the chemical composition of the silica network, hydrophilic/hydrophobic profile, particle dimension, pore shape/size and surface characteristics. The combined use of structural characterization methods allowed us to reveal a relation between the cavity dimensions, the synthesis pH value and the grade of methyl substitution. The effect of the structural properties on the controlled Captopril release efficiency has also been tested. This knowledge facilitates tailoring the pore network for specific usage in biological/medical applications. Knowledge on structural aspects, as reported in this work, represents a key starting point for the production of high-performance silica-based hybrid materials showing enhanced efficacy compared to bare silica prepared using only TEOS.
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Affiliation(s)
- Adél Len
- Neutron Spectroscopy Department, Centre for Energy Research, Konkoly-Thege 29-33, 1121 Budapest, Hungary; (A.L.); (L.A.)
- Faculty of Engineering and Information Technology, University of Pécs, Boszorkány Str 2, 7624 Pécs, Hungary
| | - Giuseppe Paladini
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres 31, 98166 Messina, Italy;
| | - Loránd Románszki
- Functional Interfaces Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok Körútja 2, 1117 Budapest, Hungary;
| | - Ana-Maria Putz
- “Coriolan Drăgulescu” Institute of Chemistry Timisoara, 24 Mihai Viteazul Ave., 300223 Timisoara, Romania;
| | - László Almásy
- Neutron Spectroscopy Department, Centre for Energy Research, Konkoly-Thege 29-33, 1121 Budapest, Hungary; (A.L.); (L.A.)
| | - Krisztina László
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, 1521 Budapest, Hungary;
| | - Szabolcs Bálint
- Semilab Semiconductor Physics Laboratory Co. Ltd., 4/A Prielle Kornelia Str., 1117 Budapest, Hungary;
| | - Andraž Krajnc
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia;
| | - Manfred Kriechbaum
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria;
| | - Andrei Kuncser
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania;
| | - József Kalmár
- MTA-DE ELKH Homogeneous Catalysis and Reaction Mechanisms Research Group, Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary;
| | - Zoltán Dudás
- Neutron Spectroscopy Department, Centre for Energy Research, Konkoly-Thege 29-33, 1121 Budapest, Hungary; (A.L.); (L.A.)
- “Coriolan Drăgulescu” Institute of Chemistry Timisoara, 24 Mihai Viteazul Ave., 300223 Timisoara, Romania;
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21
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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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22
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Juhász L, Moldován K, Gurikov P, Liebner F, Fábián I, Kalmár J, Cserháti C. False Morphology of Aerogels Caused by Gold Coating for SEM Imaging. Polymers (Basel) 2021; 13:polym13040588. [PMID: 33669181 PMCID: PMC7919642 DOI: 10.3390/polym13040588] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/03/2021] [Accepted: 02/11/2021] [Indexed: 12/02/2022] Open
Abstract
The imaging of non-conducting materials by scanning electron microscopy (SEM) is most often performed after depositing few nanometers thick conductive layers on the samples. It is shown in this work, that even a 5 nm thick sputtered gold layer can dramatically alter the morphology and the surface structure of many different types of aerogels. Silica, polyimide, polyamide, calcium-alginate and cellulose aerogels were imaged in their pristine forms and after gold sputtering utilizing low voltage scanning electron microscopy (LVSEM) in order to reduce charging effects. The morphological features seen in the SEM images of the pristine samples are in excellent agreement with the structural parameters of the aerogels measured by nitrogen adsorption-desorption porosimetry. In contrast, the morphologies of the sputter coated samples are significantly distorted and feature nanostructured gold. These findings point out that extra care should be taken in order to ensure that gold sputtering does not cause morphological artifacts. Otherwise, the application of low voltage scanning electron microscopy even yields high resolution images of pristine non-conducting aerogels.
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Affiliation(s)
- Laura Juhász
- Department of Solid State Physics, University of Debrecen, Egyetem sqr. 1, H-4032 Debrecen, Hungary;
- Doctoral School of Physics, University of Debrecen, Egyetem sqr. 1, H-4032 Debrecen, Hungary
| | - Krisztián Moldován
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem sqr. 1, H-4032 Debrecen, Hungary; (K.M.); (I.F.)
- Doctoral School of Chemistry, University of Debrecen, Egyetem sqr. 1, H-4032 Debrecen, Hungary
| | - Pavel Gurikov
- Laboratory for Development and Modelling of Novel Nanoporous Materials, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany;
| | - Falk Liebner
- Institute for Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad-Lorenz-Straße 24, A-3430 Tulln, Austria;
| | - István Fábián
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem sqr. 1, H-4032 Debrecen, Hungary; (K.M.); (I.F.)
| | - József Kalmár
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem sqr. 1, H-4032 Debrecen, Hungary; (K.M.); (I.F.)
- Correspondence: (J.K.); (C.C.); Tel.: +36-52-512-900 (J.K.); +36-52-316-073 (C.C.)
| | - Csaba Cserháti
- Department of Solid State Physics, University of Debrecen, Egyetem sqr. 1, H-4032 Debrecen, Hungary;
- Correspondence: (J.K.); (C.C.); Tel.: +36-52-512-900 (J.K.); +36-52-316-073 (C.C.)
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23
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Nelson M, Li S, Page SJ, Shi X, Lee PD, Stevens MM, Hanna JV, Jones JR. 3D printed silica-gelatin hybrid scaffolds of specific channel sizes promote collagen Type II, Sox9 and Aggrecan production from chondrocytes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111964. [PMID: 33812592 DOI: 10.1016/j.msec.2021.111964] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 11/26/2022]
Abstract
Inorganic/organic hybrids have co-networks of inorganic and organic components, with the aim of obtaining synergy of the properties of those components. Here, a silica-gelatin sol-gel hybrid "ink" was directly 3D printed to produce 3D grid-like scaffolds, using a coupling agent, 3-glycidyloxypropyl)trimethoxysilane (GPTMS), to form covalent bonds between the silicate and gelatin co-networks. Scaffolds were printed with 1 mm strut separation, but the drying method affected the final architecture and properties. Freeze drying produced <40 μm struts and large ~700 μm channels. Critical point drying enabled strut consolidation, with ~160 μm struts and ~200 μm channels, which improved mechanical properties. This architecture was critical to cellular response: when chondrocytes were seeded on the scaffolds with 200 μm wide pore channels in vitro, collagen Type II matrix was preferentially produced (negligible amount of Type I or X were observed), indicative of hyaline-like cartilaginous matrix formation, but when pore channels were 700 μm wide, Type I collagen was prevalent. This was supported by Sox9 and Aggrecan expression. The scaffolds have potential for regeneration of articular cartilage regeneration, particularly in sports medicine cases.
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Affiliation(s)
- Maria Nelson
- Department of Materials, Imperial College London, London SW7 2AZ, UK
| | - Siwei Li
- Department of Materials, Imperial College London, London SW7 2AZ, UK
| | - Samuel J Page
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
| | - Xiaomeng Shi
- Department of Materials, Imperial College London, London SW7 2AZ, UK
| | - Peter D Lee
- Department of Mechanical Engineering, University College London, WC1E 7JE, UK
| | - Molly M Stevens
- Department of Materials, Imperial College London, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
| | - John V Hanna
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
| | - Julian R Jones
- Department of Materials, Imperial College London, London SW7 2AZ, UK.
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24
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Forgács A, Papp V, Paul G, Marchese L, Len A, Dudás Z, Fábián I, Gurikov P, Kalmár J. Mechanism of Hydration and Hydration Induced Structural Changes of Calcium Alginate Aerogel. ACS APPLIED MATERIALS & INTERFACES 2021; 13:2997-3010. [PMID: 33401895 DOI: 10.1021/acsami.0c17012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The most relevant properties of polysaccharide aerogels in practical applications are determined by their microstructures. Hydration has a dominant role in altering the microstructures of these hydrophilic porous materials. To understand the hydration induced structural changes of monolithic Ca-alginate aerogel, produced by drying fully cross-linked gels with supercritical CO2, the aerogel was gradually hydrated and characterized at different states of hydration by small-angle neutron scattering (SANS), liquid-state nuclear magnetic resonance (NMR) spectroscopy, and magic angle spinning (MAS) NMR spectroscopy. First, the incorporation of structural water and the formation of an extensive hydration sphere mobilize the Ca-alginate macromolecules and induce the rearrangement of the dry-state tertiary and quaternary structures. The primary fibrils of the original aerogel backbone form hydrated fibers and fascicles, resulting in the significant increase of pore size, the smoothing of the nanostructured surface, and the increase of the fractal dimension of the matrix. Because of the formation of these new superstructures in the hydrated backbone, the stiffness and the compressive strength of the aerogel significantly increase compared to its dry-state properties. Further elevation of the water content of the aerogel results in a critical hydration state. The Ca-alginate fibers of the backbone disintegrate into well-hydrated chains, which eventually form a quasi-homogeneous hydrogel-like network. Consequently, the porous structure collapses and the well-defined solid backbone ceases to exist. Even in this hydrogel-like state, the macroscopic integrity of the Ca-alginate monolith is intact. The postulated mechanism accounts for the modification of the macroscopic properties of Ca-alginate aerogel in relation to both humid and aqueous environments.
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Affiliation(s)
- Attila Forgács
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Vanda Papp
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Geo Paul
- Department of Science and Technological Innovation, Universitá del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy
| | - Leonardo Marchese
- Department of Science and Technological Innovation, Universitá del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy
| | - Adél Len
- Neutron Spectroscopy Department, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest H-1121, Hungary
| | - Zoltán Dudás
- Neutron Spectroscopy Department, Centre for Energy Research, Konkoly-Thege Miklós út 29-33, Budapest H-1121, Hungary
| | - István Fábián
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Pavel Gurikov
- Laboratory for Development and Modelling of Novel Nanoporous Materials, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - József Kalmár
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, Egyetem tér 1, Debrecen H-4032, Hungary
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25
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Borcan F, Len A, Dehelean CA, Dudás Z, Ghiulai R, Iftode A, Racoviceanu R, Soica CM. Design and Assessment of a Polyurethane Carrier Used for the Transmembrane Transfer of Acyclovir. NANOMATERIALS 2020; 11:nano11010051. [PMID: 33379150 PMCID: PMC7823466 DOI: 10.3390/nano11010051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023]
Abstract
THE Herpes simplex viruses (HSV-1, HSV-2) are responsible for a wide variety of conditions, from cutaneous-mucosal to central nervous system (CNS) infections and occasional infections of the visceral organs, some of them with a lethal end. Acyclovir is often used intravenously, orally, or locally to treat herpetic infections but it must be administered with caution to patients with kidney disease and to children of early age. The main objectives of this study were to synthesize and evaluate new polyurethane nanoparticles that might be used as proper transmembrane carriers for acyclovir. Polyurethane particles were obtained by a polyaddition process: a mixture of two aliphatic diisocyanates used as organic phase was added to a mixture of butanediol and polyethylene glycol used as aqueous phase. Two different samples (with and without acyclovir, respectively) were synthesized and characterized by UV-Vis spectra in order to assess the encapsulation efficacy and the release profile, FT-IR, DSC, SEM, and SANS for structural characterization, as well as skin irritation tests. Nearly homogeneous samples with particle sizes between 78 and 91 nm have been prepared and characterized revealing a medium tendency to form clusters and a high resistance to heat up to 300 °C. The release profile of these nanoparticles is characteristic to a drug delivery system with a late discharge of the loaded active agents. Very slight increases in the level of transepidermal water loss and erythema were found in a 15-day evaluation on human skin. The results suggest the synthesis of a non-irritative carrier with a high encapsulation efficacy that can be successfully used for the transmembrane transfer of acyclovir.
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Affiliation(s)
- Florin Borcan
- Department I, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania;
| | - Adél Len
- Neutron Spectroscopy Department, Centre for Energy Research, H-1121 Budapest, Hungary;
- Faculty of Engineering and Information Technology, University of Pécs, H-7624 Pécs, Hungary
| | - Cristina A. Dehelean
- Department II, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.D.); (A.I.); (R.R.); (C.M.S.)
| | - Zoltán Dudás
- Neutron Spectroscopy Department, Centre for Energy Research, H-1121 Budapest, Hungary;
- “Coriolan Drăgulescu” Institute of Chemistry, 300223 Timisoara, Romania
- Correspondence: (Z.D.); (R.G.); Tel.: +36-1-392-2222/1849 (Z.D.); +40-723-326-823 (R.G.)
| | - Roxana Ghiulai
- Department II, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.D.); (A.I.); (R.R.); (C.M.S.)
- Correspondence: (Z.D.); (R.G.); Tel.: +36-1-392-2222/1849 (Z.D.); +40-723-326-823 (R.G.)
| | - Andrada Iftode
- Department II, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.D.); (A.I.); (R.R.); (C.M.S.)
| | - Roxana Racoviceanu
- Department II, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.D.); (A.I.); (R.R.); (C.M.S.)
| | - Codruta M. Soica
- Department II, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (C.A.D.); (A.I.); (R.R.); (C.M.S.)
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26
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Rostamabadi H, Falsafi SR, Assadpour E, Jafari SM. Evaluating the structural properties of bioactive‐loaded nanocarriers with modern analytical tools. Compr Rev Food Sci Food Saf 2020; 19:3266-3322. [DOI: 10.1111/1541-4337.12653] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 08/27/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Hadis Rostamabadi
- Faculty of Food Science and Technology Gorgan University of Agricultural Sciences and Natural Resources Gorgan Iran
| | - Seid Reza Falsafi
- Faculty of Food Science and Technology Gorgan University of Agricultural Sciences and Natural Resources Gorgan Iran
| | - Elham Assadpour
- Faculty of Food Science and Technology Gorgan University of Agricultural Sciences and Natural Resources Gorgan Iran
| | - Seid Mahdi Jafari
- Faculty of Food Science and Technology Gorgan University of Agricultural Sciences and Natural Resources Gorgan Iran
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27
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Sustained Release of Melatonin from GelMA Liposomes Reduced Osteoblast Apoptosis and Improved Implant Osseointegration in Osteoporosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6797154. [PMID: 32566094 PMCID: PMC7275204 DOI: 10.1155/2020/6797154] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 02/25/2020] [Indexed: 02/07/2023]
Abstract
A reduction in bone mass around an implant is the main cause of implant loosening, especially in postmenopausal osteoporosis patients. In osteoporosis, excessive oxidative stress, resulting in osteoblast apoptosis, largely contributes to abnormal bone remodeling. Melatonin (MT) synthesized by the pineal gland promotes osteoblast differentiation and bone formation and has been effectively used to combat oxidative stress. Therefore, we hypothesized that MT attenuates osteoblast apoptosis induced by oxidative stress, promotes osteogenesis in osteoporosis, and improves bone mass around prostheses. Moreover, considering the distribution and metabolism of MT, its systemic administration would require a large amount of MT, increasing the probability of drug side effects, so the local administration of MT is more effective than its systemic administration. In this study, we constructed a composite adhesive hydrogel system (GelMA-DOPA@MT) to bring about sustained MT release in a local area. Additionally, MT-reduced apoptosis caused by hydrogen peroxide- (H2O2-) induced oxidative stress and restored the osteogenic potential of MC3T3-E1 cells. Furthermore, apoptosis in osteoblasts around the implant was significantly attenuated, and increased bone mass around the implant was observed in ovariectomized (OVX) rats treated with this composite system. In conclusion, our results show that GelMA-DOPA@MT can inhibit osteoblast apoptosis caused by oxidative stress, thereby promoting osteogenesis and improving bone quality around a prosthesis. Therefore, this system of local, sustained MT release is a suitable candidate to address implant loosening in patients with osteoporosis.
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28
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Kovács AN, Varga N, Gombár G, Hornok V, Csapó E. Novel feasibilities for preparation of serum albumin-based core-shell nanoparticles in flow conditions. J Flow Chem 2020. [DOI: 10.1007/s41981-020-00088-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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