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Huang J, Zhang S, Liu D, Feng X, Wang Q, An S, Xu M, Chu L. Preparation and characterization of astaxanthin-loaded microcapsules stabilized by lecithin-chitosan-alginate interfaces with layer-by-layer assembly method. Int J Biol Macromol 2024; 268:131909. [PMID: 38679251 DOI: 10.1016/j.ijbiomac.2024.131909] [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: 01/04/2024] [Revised: 04/06/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Astaxanthin is a kind of keto-carotenes with various health benefits. However, its solubility and chemical stability are poor, which leads to low bio-availability. Microcapsules have been reported to improve the solubility, chemical stability, and bio-availability of lipophilic bioactives. Freeze-dried astaxanthin-loaded microcapsules were prepared by layer-by-layer assembly of tertiary emulsions with maltodextrin as the filling matrix. Tertiary emulsions were fabricated by performing chitosan and sodium alginate electrostatic deposition onto soybean lecithin stabilized emulsions. 0.9 wt% of chitosan solution, 0.3 wt% of sodium alginate solution and 20 wt% of maltodextrin were optimized as the suitable concentrations. The prepared microcapsules were powders with irregular blocky structures. The astaxanthin loading was 0.56 ± 0.05 % and the encapsulation efficiency was >90 %. A slow release of astaxanthin could be observed in microcapsules promoted by the modulating of chitosan, alginate and maltodextrin. In vitro simulated digestion displayed that the microcapsules increased the bio-accessibility of astaxanthin to 69 ± 1 %. Chitosan, alginate and maltodextrin can control the digestion of microcapsules. The coating of chitosan and sodium alginate, and the filling of maltodextrin in microcapsules improved the chemical stability of astaxanthin. The constructed microcapsules were valuable to enrich scientific knowledge about improving the application of functional ingredients.
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Affiliation(s)
- Juan Huang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China; The East China Science and Technology Research Institute of Changshu Company Limited, Changshu 215500, China.
| | - Shuo Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Dongchen Liu
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Xuan Feng
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Qingding Wang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Shennan An
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Mengting Xu
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Lanling Chu
- Faculty of Food Science and Engineering, School of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
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Gutiérrez-Ruíz SC, Cortes H, González-Torres M, Almarhoon ZM, Gürer ES, Sharifi-Rad J, Leyva-Gómez G. Optimize the parameters for the synthesis by the ionic gelation technique, purification, and freeze-drying of chitosan-sodium tripolyphosphate nanoparticles for biomedical purposes. J Biol Eng 2024; 18:12. [PMID: 38273413 PMCID: PMC10811841 DOI: 10.1186/s13036-024-00403-w] [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: 01/29/2023] [Accepted: 01/04/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Polymeric nanoparticles can be used for wound closure and therapeutic compound delivery, among other biomedical applications. Although there are several nanoparticle obtention methods, it is crucial to know the adequate parameters to achieve better results. Therefore, the objective of this study was to optimize the parameters for the synthesis, purification, and freeze-drying of chitosan nanoparticles. We evaluated the conditions of agitation speed, anion addition time, solution pH, and chitosan and sodium tripolyphosphate concentration. RESULTS Chitosan nanoparticles presented an average particle size of 172.8 ± 3.937 nm, PDI of 0.166 ± 0.008, and zeta potential of 25.00 ± 0.79 mV, at the concentration of 0.1% sodium tripolyphosphate and chitosan (pH 5.5), with a dripping time of 2 min at 500 rpm. The most representative factor during nanoparticle fabrication was the pH of the chitosan solution, generating significant changes in particle size and polydispersity index. The observed behavior is attributed to the possible excess of sodium tripolyphosphate during synthesis. We added the surfactants poloxamer 188 and polysorbate 80 to evaluate the stability improvement during purification (centrifugation or dialysis). These surfactants decreased coalescence between nanoparticles, especially during purification. The centrifugation increased the zeta potential to 40.8-56.2 mV values, while the dialyzed samples led to smaller particle sizes (152-184 nm). Finally, freeze-drying of the chitosan nanoparticles proceeded using two cryoprotectants, trehalose and sucrose. Both adequately protected the system during the process, and the sugar concentration depended on the purification process. CONCLUSIONS In Conclusion, we must consider each surfactant's benefits in formulations for selecting the most suitable. Also, it is necessary to do more studies with the molecule to load. At the same time, the use of sucrose and trehalose generates adequate protection against the freeze-drying process, even at a 5% w/v concentration. However, adjusting the percentage concentration by weight must be made to work with the CS-TPP NPs purified by dialysis.
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Affiliation(s)
| | - Hernán Cortes
- Departamento de Genómica, Laboratorio de Medicina Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | - Maykel González-Torres
- CONACyT-Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, 14389, Mexico
| | - Zainab M Almarhoon
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Eda Sönmez Gürer
- Department of Pharmacognosy, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas, Turkey
| | | | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.
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Zhang Y, Chen Y, Liu Z, Peng X, Lu J, Wang K, Zhang L. Encapsulation of a novel peptide derived from histatin-1 in liposomes against initial enamel caries in vitro and in vivo. Clin Oral Investig 2023; 28:35. [PMID: 38147166 DOI: 10.1007/s00784-023-05465-6] [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: 07/07/2023] [Accepted: 12/18/2023] [Indexed: 12/27/2023]
Abstract
OBJECTIVES Biomimetic mineralization mediated by proteins and peptides is a promising strategy for enamel repair, and its specific application model needs more research. In this work, we exploited a liposomal delivery system for a novel peptide (DK5) derived from histatin-1 (DK5-Lips) as a new biomimetic mineralization strategy against initial enamel caries. MATERIALS AND METHODS The DK5-Lips was prepared using calcium acetate gradient method and then the in vitro release, salivary stability, and cytotoxicity were studied. Initial enamel caries was created in bovine enamel blocks and subjected to pH-cycling model treated with DK5-Lips. Surface microhardness testing, polarized light microscopy (PLM), and transverse microradiography (TMR) were analyzed. Then the biocompatibility of DK5-Lips was evaluated in the caries model of Sprague-Dawley rats, and the anti-caries effect was assessed using Micro-CT analysis, Keyes scores, and PLM in vivo. RESULTS DK5-Lips provided a mean particle size of (97.63 ± 4.94)nm and encapsulation efficiency of (61.46 ± 1.44)%, exhibiting a sustained release profile, excellent stability in saliva, and no significant toxicity on human gingival fibroblasts (HGFs). The DK5-Lips group had higher surface microhardness recovery, shallower caries depth, and less mineral loss in bovine enamel. Animal experiments showed higher volume and density values of residual molar enamel, lower Keyes score, and shallower lesion depth of the DK5-Lips group with good biocompatibility. CONCLUSION As a safe and effective application model, DK5-Lips could significantly promote the remineralization of initial enamel caries both in vitro and in vivo. CLINICAL RELEVANCE The potential of liposome utilization as vehicle for oral delivery of functional peptides may provide a new way for enamel restoration.
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Grants
- 81970931 the National Natural Science Foundation of China
- 81970931 the National Natural Science Foundation of China
- 81970931 the National Natural Science Foundation of China
- 81970931 the National Natural Science Foundation of China
- 81970931 the National Natural Science Foundation of China
- 81970931 the National Natural Science Foundation of China
- 81970931 the National Natural Science Foundation of China
- 2022YFS0287 the Sichuan Provincial Department of Science and Technology Program
- 2022YFS0287 the Sichuan Provincial Department of Science and Technology Program
- 2022YFS0287 the Sichuan Provincial Department of Science and Technology Program
- 2022YFS0287 the Sichuan Provincial Department of Science and Technology Program
- 2022YFS0287 the Sichuan Provincial Department of Science and Technology Program
- 2022YFS0287 the Sichuan Provincial Department of Science and Technology Program
- 2022YFS0287 the Sichuan Provincial Department of Science and Technology Program
- grant RD-02-202010 the Research and Development Program, West China Hospital of Stomatology, Sichuan University
- grant RD-02-202010 the Research and Development Program, West China Hospital of Stomatology, Sichuan University
- grant RD-02-202010 the Research and Development Program, West China Hospital of Stomatology, Sichuan University
- grant RD-02-202010 the Research and Development Program, West China Hospital of Stomatology, Sichuan University
- grant RD-02-202010 the Research and Development Program, West China Hospital of Stomatology, Sichuan University
- grant RD-02-202010 the Research and Development Program, West China Hospital of Stomatology, Sichuan University
- grant RD-02-202010 the Research and Development Program, West China Hospital of Stomatology, Sichuan University
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Affiliation(s)
- Yinmo Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3 of Renmin Road South, Chengdu, 610041, China
| | - Yue Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3 of Renmin Road South, Chengdu, 610041, China
- Department of Stomatology, Aviation General Hospital of China Medical University and Beijing Institute of Translational Medicine, Chinese Academy of Science, Beijing, China
| | - Zhenqi Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3 of Renmin Road South, Chengdu, 610041, China
| | - Xiu Peng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3 of Renmin Road South, Chengdu, 610041, China
| | - Junzhuo Lu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3 of Renmin Road South, Chengdu, 610041, China
| | - Kun Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3 of Renmin Road South, Chengdu, 610041, China.
| | - Linglin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3 of Renmin Road South, Chengdu, 610041, China.
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Browne D, Briggs F, Asuri P. Role of Polymer Concentration on the Release Rates of Proteins from Single- and Double-Network Hydrogels. Int J Mol Sci 2023; 24:16970. [PMID: 38069293 PMCID: PMC10707672 DOI: 10.3390/ijms242316970] [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: 10/25/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Controlled delivery of proteins has immense potential for the treatment of various human diseases, but effective strategies for their delivery are required before this potential can be fully realized. Recent research has identified hydrogels as a promising option for the controlled delivery of therapeutic proteins, owing to their ability to respond to diverse chemical and biological stimuli, as well as their customizable properties that allow for desired delivery rates. This study utilized alginate and chitosan as model polymers to investigate the effects of hydrogel properties on protein release rates. The results demonstrated that polymer properties, concentration, and crosslinking density, as well as their responses to pH, can be tailored to regulate protein release rates. The study also revealed that hydrogels may be combined to create double-network hydrogels to provide an additional metric to control protein release rates. Furthermore, the hydrogel scaffolds were also found to preserve the long-term function and structure of encapsulated proteins before their release from the hydrogels. In conclusion, this research demonstrates the significance of integrating porosity and response to stimuli as orthogonal control parameters when designing hydrogel-based scaffolds for therapeutic protein release.
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Affiliation(s)
| | | | - Prashanth Asuri
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053, USA; (D.B.); (F.B.)
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Pratiwi RD, El Muttaqien S, Gustini N, Difa NS, Syahputra G, Rosyidah A. Eco-friendly synthesis of chitosan and its medical application: from chitin extraction to nanoparticle preparation. ADMET AND DMPK 2023; 11:435-455. [PMID: 37937250 PMCID: PMC10626508 DOI: 10.5599/admet.1999] [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: 07/26/2023] [Revised: 09/05/2023] [Indexed: 11/09/2023] Open
Abstract
Background and Purpose Chitosan, a chitin deacetylation product, has been applied in nanoparticle or nano-chitosan for medical applications. However, the chitin extraction from crustacean shells and other natural resources, chitin deacetylation, and crosslinking of the chitosan forming the nano-chitosan mostly involve hazardous chemical and physical processes. The risks of these processes to human health and the environment attract the attention of scientists to develop safer and greener techniques. This review aims to describe the progress of harmless chitosan synthesis. Experimental Approach All strongly related publications to each section, which were found on scientific search engines (Google Scholar, Scopus, and Pubmed), were studied, selected, and then used as references in writing this review. No limitation for the publication year was applied. The publications were searched from April 2022 - June 2023. Key Results Nano-chitosan could be synthesized in harmless techniques, including the preparation of the chitosan raw materials and crosslinking the chitosan polymer. Enzymatic processes in shell deproteination in the chitin extraction and deacetylation are preferable to reduce the negative effects of conventional chemical-physical processes. Mild alkalines and deep eutectic solvents also provide similar benefits. In the nano-chitosan synthesis, naturally derived compounds (carrageenan, genipin, and valinin) show potency as safer crosslinkers, besides tripolyphosphate, the most common safe crosslinker. Conclusion A list of eco-friendly and safer processes in the synthesis of nano-chitosan has been reported in recent years. These findings are suggested for the nano-chitosan synthesis on an industrial scale in the near future.
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Affiliation(s)
- Riyona Desvy Pratiwi
- Research Center for Vaccine and Drug, Organization Research of Health, The National Research and Innovation Agency, Jalan Raya Bogor Km 46 Cibinong, Bogor 16911, West Java, Indonesia
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6
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Son B, Kim M, Won H, Jung A, Kim J, Koo Y, Lee NK, Baek SH, Han U, Park CG, Shin H, Gweon B, Joo J, Park HH. Secured delivery of basic fibroblast growth factor using human serum albumin-based protein nanoparticles for enhanced wound healing and regeneration. J Nanobiotechnology 2023; 21:310. [PMID: 37658367 PMCID: PMC10474766 DOI: 10.1186/s12951-023-02053-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/05/2023] [Indexed: 09/03/2023] Open
Abstract
BACKGROUND Basic fibroblast growth factor (bFGF) is one of the critical components accelerating angiogenesis and tissue regeneration by promoting the migration of dermal fibroblasts and endothelial cells associated with matrix formation and remodeling in wound healing process. However, clinical applications of bFGF are substantially limited by its unstable nature due to rapid decomposition under physiological microenvironment. RESULTS In this study, we present the bFGF-loaded human serum albumin nanoparticles (HSA-bFGF NPs) as a means of enhanced stability and sustained release platform during tissue regeneration. Spherical shape of the HSA-bFGF NPs with uniform size distribution (polydispersity index < 0.2) is obtained via a simple desolvation and crosslinking process. The HSA-bFGF NPs securely load and release the intact soluble bFGF proteins, thereby significantly enhancing the proliferation and migration activity of human dermal fibroblasts. Myofibroblast-related genes and proteins were also significantly down-regulated, indicating decrease in risk of scar formation. Furthermore, wound healing is accelerated while achieving a highly organized extracellular matrix and enhanced angiogenesis in vivo. CONCLUSION Consequently, the HSA-bFGF NPs are suggested not only as a delivery vehicle but also as a protein stabilizer for effective wound healing and tissue regeneration.
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Affiliation(s)
- Boram Son
- Department of Bioengineering, Hanyang University, Seoul, Republic of Korea
| | - Minju Kim
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Hyosub Won
- Department of Bioengineering, Hanyang University, Seoul, Republic of Korea
| | - Ara Jung
- Department of Mechanical Engineering, Sejong University, Seoul, Republic of Korea
- Department of Biomedicine & Health Science, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jihyun Kim
- Department of Bioengineering, Hanyang University, Seoul, Republic of Korea
| | - Yonghoe Koo
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Na Kyeong Lee
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Seung-Ho Baek
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, Korea
| | - Uiyoung Han
- Department of Ophthalmology, Stanford University School of Medicine, Stanford, CA, USA
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, Seoul, Republic of Korea
| | - Bomi Gweon
- Department of Mechanical Engineering, Sejong University, Seoul, Republic of Korea.
| | - Jinmyoung Joo
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
- Materials Research Science and Engineering Center, University of California, San Diego, La Jolla, United States.
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan, Republic of Korea.
| | - Hee Ho Park
- Department of Bioengineering, Hanyang University, Seoul, Republic of Korea.
- Research Institute for Convergence of Basic Science, Hanyang University, Seoul, Republic of Korea.
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Herdiana Y, Husni P, Nurhasanah S, Shamsuddin S, Wathoni N. Chitosan-Based Nano Systems for Natural Antioxidants in Breast Cancer Therapy. Polymers (Basel) 2023; 15:2953. [PMID: 37447598 DOI: 10.3390/polym15132953] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/02/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Breast cancer is a major cause of death globally, accounting for around 13% of all deaths. Chemotherapy, the common treatment for cancer, can have side effects that lead to the production of reactive oxygen species (ROS) and an increase in oxidative stress in the body. Antioxidants are important for maintaining the health of cells and helping the immune system function properly. They play a crucial role in balancing the body's internal environment. Using natural antioxidants is an alternative to mitigate the harmful effects of oxidative stress. However, around 80% of natural antioxidants have limited effectiveness when taken orally because they do not dissolve well in water or other solvents. This poor solubility affects their ability to be absorbed by the body and limits their bioavailability. One strategy that has been considered is to increase their water solubility to increase their oral bioavailability. Chitosan-based nanoparticle (CSNP) systems have been extensively explored due to their reliability and simpler synthesis routes. This review focuses on the various methods of chitosan-based nanoformulation for developing effective oral dosage forms for natural antioxidants based on the pharmacokinetics and pharmacodynamics properties. Chitosan (CS) could be a model, because of its wide use in polymeric NPs research, thus providing a better understanding of the role of vehicles that carry natural antioxidants in maintaining the stability and enhancing the performance of cancer drugs.
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Affiliation(s)
- Yedi Herdiana
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Patihul Husni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Siti Nurhasanah
- Faculty of Agricultural Industrial Technology, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Shaharum Shamsuddin
- School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia
- Nanobiotech Research Initiative, Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Penang 11800, Malaysia
- USM-RIKEN Interdisciplinary Collaboration on Advanced Sciences (URICAS), Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
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He Y, Vasilev K, Zilm P. pH-Responsive Biomaterials for the Treatment of Dental Caries-A Focussed and Critical Review. Pharmaceutics 2023; 15:1837. [PMID: 37514024 PMCID: PMC10385394 DOI: 10.3390/pharmaceutics15071837] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Dental caries is a common and costly multifactorial biofilm disease caused by cariogenic bacteria that ferment carbohydrates to lactic acid, demineralizing the inorganic component of teeth. Therefore, low pH (pH 4.5) is a characteristic signal of the localised carious environment, compared to a healthy oral pH range (6.8 to 7.4). The development of pH-responsive delivery systems that release antibacterial agents in response to low pH has gained attention as a targeted therapy for dental caries. Release is triggered by high levels of acidogenic species and their reduction may select for the establishment of health-associated biofilm communities. Moreover, drug efficacy can be amplified by the modification of the delivery system to target adhesion to the plaque biofilm to extend the retention time of antimicrobial agents in the oral cavity. In this review, recent developments of different pH-responsive nanocarriers and their biofilm targeting mechanisms are discussed. This review critically discusses the current state of the art and innovations in the development and use of smart delivery materials for dental caries treatment. The authors' views for the future of the field are also presented.
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Affiliation(s)
- Yanping He
- Adelaide Dental School, University of Adelaide, Adelaide, SA 5000, Australia
| | - Krasimir Vasilev
- College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, SA 5042, Australia
| | - Peter Zilm
- Adelaide Dental School, University of Adelaide, Adelaide, SA 5000, Australia
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9
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Yu K, Zhang Q, Dai Z, Zhu M, Xiao L, Zhao Z, Bai Y, Zhang K. Smart Dental Materials Intelligently Responding to Oral pH to Combat Caries: A Literature Review. Polymers (Basel) 2023; 15:2611. [PMID: 37376255 DOI: 10.3390/polym15122611] [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: 04/20/2023] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Smart dental materials are designed to intelligently respond to physiological changes and local environmental stimuli to protect the teeth and promote oral health. Dental plaque, or biofilms, can substantially reduce the local pH, causing demineralization that can then progress to tooth caries. Progress has been made recently in developing smart dental materials that possess antibacterial and remineralizing capabilities in response to local oral pH in order to suppress caries, promote mineralization, and protect tooth structures. This article reviews cutting-edge research on smart dental materials, their novel microstructural and chemical designs, physical and biological properties, antibiofilm and remineralizing capabilities, and mechanisms of being smart to respond to pH. In addition, this article discusses exciting and new developments, methods to further improve the smart materials, and potential clinical applications.
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Affiliation(s)
- Kan Yu
- Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Qinrou Zhang
- School of Stomatology, Chongqing Medical University, Chongqing 401147, China
| | - Zixiang Dai
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Minjia Zhu
- Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Le Xiao
- Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Zeqing Zhao
- Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Yuxing Bai
- Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Ke Zhang
- Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
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10
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Zhu Y, Winer D, Goh C, Shrestha A. Injectable thermosensitive hydrogel to modulate tolerogenic dendritic cells under hyperglycemic condition. Biomater Sci 2023; 11:2091-2102. [PMID: 36723183 DOI: 10.1039/d2bm01881k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Hyperglycemia associated with diabetes mellitus is a significant risk factor for periodontitis and it polarizes the immune cells towards an inflammatory state. Specific biomaterials can deliver therapeutic or immunomodulatory agents to regulate the excessive periodontal inflammation. Dendritic cells (DCs) bridge the innate and adaptive immune systems and are crucially involved in periodontitis. Thus, targeting DCs is an attractive treatment option for diabetic periodontitis, which, by modulating the downstream adaptive immune cells could regulate the host immune responses. In this study, a chitosan-based thermosensitive injectable self-assembled hydrogel (TISH) was developed to modulate DCs towards a tolerogenic phenotype, which can induce regulatory T-cells to attenuate inflammation and promote healing. Granulocyte-macrophage colony-stimulating factor (GM-CSF) and resveratrol were loaded into TISH (TISH(G + R)) and were sustainably released. TISH demonstrated good biocompatibility and cell penetration in its porous structure. DCs grown in TISH(G + R) under an in vitro hyperglycemic condition showed reduced maturation and activation markers such as CD80, CD83 and CD86, while simultaneously upregulated tolerogenic genes such as FOXP3, SOCS3, TGFß and IL10. Co-culture of these tolerogenic DCs with naïve T-cells induced regulatory T-cells differentiation, evidenced by elevated gene expressions of FOXP3, TGFβ and IL-10. In vivo subcutaneous injection of TISH (G + R) into the mice showed significant infiltration of DCs and regulatory T-cells. In conclusion, TISH was developed and optimized as an injectable hydrogel to modulate DCs towards the tolerogenic phenotype and induce regulatory T-cells under hyperglycemia. TISH has promising potential to improve periodontal parameters in diabetic periodontitis.
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Affiliation(s)
- Yi Zhu
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada.
| | - Daniel Winer
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA.,Division of Cellular and Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON, M5G 1L7, Canada.,Department of Pathology, University Health Network, Toronto, ON M5G 2C4, Canada
| | - Cynthia Goh
- Department of Chemistry, University of Toronto, 80 George Street, Toronto, ON, M5S 3H6, Canada.,Department of Materials Science and Engineering, University of Toronto, 84 College Street, Toronto, ON, M5S 3E4, Canada
| | - Annie Shrestha
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada. .,Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada
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NIR-responsive 5-Fluorouracil delivery using polydopamine coated polygonal CuS nanoplates for synergistic chemo-photothermal therapy on breast cancer. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Recent Advances of Chitosan Formulations in Biomedical Applications. Int J Mol Sci 2022; 23:ijms231810975. [PMID: 36142887 PMCID: PMC9504745 DOI: 10.3390/ijms231810975] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 02/07/2023] Open
Abstract
Chitosan, a naturally abundant cationic polymer, is chemically composed of cellulose-based biopolymers derived by deacetylating chitin. It offers several attractive characteristics such as renewability, hydrophilicity, biodegradability, biocompatibility, non-toxicity, and a broad spectrum of antimicrobial activity towards gram-positive and gram-negative bacteria as well as fungi, etc., because of which it is receiving immense attention as a biopolymer for a plethora of applications including drug delivery, protective coating materials, food packaging films, wastewater treatment, and so on. Additionally, its structure carries reactive functional groups that enable several reactions and electrochemical interactions at the biomolecular level and improves the chitosan’s physicochemical properties and functionality. This review article highlights the extensive research about the properties, extraction techniques, and recent developments of chitosan-based composites for drug, gene, protein, and vaccine delivery applications. Its versatile applications in tissue engineering and wound healing are also discussed. Finally, the challenges and future perspectives for chitosan in biomedical applications are elucidated.
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Development and Characterization of a Low-Fat Mayonnaise Salad Dressing Based on Arthrospira platensis Protein Concentrate and Sodium Alginate. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12157456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The food industry is constantly reformulating different foods to fulfill the demands of the consumers (natural ingredients and good sensory quality). The present work aimed to produce low-fat mayonnaises using 30.0, 22.5, and 15.0% oil, 1% soy protein isolate (SPI) or spirulina (Arthrospira platensis) protein concentrate (SPC), and 2% sodium alginate. The physical properties (thermal stability, rheological behavior, and particle size), the sensory attributes (appearance, texture, taste, and acceptability), the purchase probability, and amino acid availability (after a simulated digestion) were evaluated. The mayonnaises demonstrated good thermal stability (>90%) using 22.5 and 15% oil, all products showed shear-thinning behavior and a consistency index of 20–66 Pa·s. The reduction of oil from 30 to 15% increased the particle size from 6–9 µm to 10–38 µm. The most acceptable product was the formulated with SPI and 22.5% oil (8.3 of acceptability and 79% of purchase probability). Finally, the addition of proteins improved the total essential amino acids compared to a commercial product (28 and 5 mg/25 g, respectively). In summary, it was possible to obtain well accepted products with high purchase probability using low concentrations of oil and vegetable proteins.
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