1
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Chen B, Li D, Tong B, Wang L, Lin H, Xu H, Hu S. Oral alginate microspheres for the efficient site-specific delivery of epidermal growth factor attenuated murine ulcerative colitis via repairing the mucosal barrier. Int J Pharm 2024; 661:124394. [PMID: 38944169 DOI: 10.1016/j.ijpharm.2024.124394] [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: 03/12/2024] [Revised: 06/18/2024] [Accepted: 06/25/2024] [Indexed: 07/01/2024]
Abstract
Ulcerative colitis (UC) is a chronic bowel inflammatory disease affecting the colorectum. Epidermal growth factor (EGF) has been demonstrated to be effective to counteract UC. However, there exists the gastrointestinal challenges such as stomach acid, enzyme and bile salts for oral delivery of EGF. Herein, calcium alginate microsphere was prepared by the microfluidic technique to encapsulate EGF. The morphology of EGF-loaded microsphere (MS-EGF) was spherical and its average particle size was 80 ± 23 μm. The encapsulation efficiency of EGF was reaching to 93.8 % ± 1.6 %. In vitro release experiments showed that MS-EGF presented the good pH-sensitive properties, that was, it could effectively resist the gastric acid and small intestinal fluids, and undergone the rapid dissolution in the artificial colon fluid. In vitro cellular experiments demonstrated that the bioactivity of EGF was well preserved by microsphere. Moreover, in vivo murine colitis model showed that MS-EGF presented the obvious colitis alleviation. Furthermore, the colonic morphology of colitis mice was effectively recovered and the tight junction between the gut epithelium was obviously repaired. In conclusion, calcium alginate microsphere might be a promising vehicle of EGF for UC treatment.
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Affiliation(s)
- Ben Chen
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province 325000, China; Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Dingwei Li
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province 325000, China; Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Bingjie Tong
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province 325000, China; Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Lifen Wang
- Research Center for Drug Safety Evaluation, Hainan Medical University, Haikou City, Hainan Province, China
| | - Haoran Lin
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province 325000, China; Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China
| | - Helin Xu
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province 325000, China; Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China; Key Laboratory of Novel Nuclide Technologies on Precision Diagnosis and Treatment & Clinical Transformation of Wenzhou City, China.
| | - Sunkuan Hu
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province 325000, China; Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China.
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Abd-Elghany AE, El-Garhy O, Fatease AA, Alamri AH, Abdelkader H. Enhancing Oral Bioavailability of Simvastatin Using Uncoated and Polymer-Coated Solid Lipid Nanoparticles. Pharmaceutics 2024; 16:763. [PMID: 38931885 PMCID: PMC11206705 DOI: 10.3390/pharmaceutics16060763] [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: 04/22/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Simvastatin (SVA) is a well-prescribed drug for treating cardiovascular and hypercholesterolemia. Due to the extensive hepatic first-pass metabolism and poor solubility, its oral bioavailability is 5%. Solid lipid nanoparticles (SLNs) and hydrogel-coated SLNs were investigated to overcome the limited bioavailability of SVA. Four different lipids used alone or in combination with two stabilizers were employed to generate 13 SLNs. Two concentrations of chitosan (CS) and alginate (AL) were coating materials. SLNs were studied for particle size, zeta potential, in vitro release, rheology, and bioavailability. The viscosities of both the bare and coated SLNs exhibited shear-thinning behavior. The viscosity of F11 (Chitosan 1%) at 20 and 40 rpm were 424 and 168 cp, respectively. F11 had a particle size of 260.1 ± 3.72 nm with a higher release; the particle size of F11-CS at 1% was 524.3 ± 80.31 nm. In vivo studies illustrated that F11 had the highest plasma concentration when compared with the SVA suspension and coated chitosan (F11 (Chitosan 1%)). Greater bioavailability is measured as (AUC0→24), as compared to uncoated ones. The AUC for F11, F11-CS 1%, and the SVA suspension were 1880.4, 3562.18, and 272 ng·h/mL, respectively. Both bare and coated SLNs exhibited a significantly higher relative bioavailability when compared to that from the control SVA.
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Affiliation(s)
- Amira E. Abd-Elghany
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia 61519, Egypt; (A.E.A.-E.); (O.E.-G.)
| | - Omar El-Garhy
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia 61519, Egypt; (A.E.A.-E.); (O.E.-G.)
| | - Adel Al Fatease
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 62223, Saudi Arabia; (A.A.F.); (A.H.A.)
| | - Ali H. Alamri
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 62223, Saudi Arabia; (A.A.F.); (A.H.A.)
| | - Hamdy Abdelkader
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 62223, Saudi Arabia; (A.A.F.); (A.H.A.)
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3
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Fang K, Li P, Zhang B, Liu S, Zhao X, Kou L, Xu W, Guo X, Li J. Insights on updates in sodium alginate/MXenes composites as the designer matrix for various applications: A review. Int J Biol Macromol 2024; 269:132032. [PMID: 38702004 DOI: 10.1016/j.ijbiomac.2024.132032] [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: 01/13/2024] [Revised: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
Advancements in two-dimensional materials, particularly MXenes, have spurred the development of innovative composites through their integration with natural polymers such as sodium alginate (SA). Mxenes exhibit a broad specific surface area, excellent electrical conductivity, and an abundance of surface terminations, which can be combined with SA to maximize the synergistic effect of the materials. This article provides a comprehensive review of state-of-the-art techniques in the fabrication of SA/MXene composites, analyzing the resulting structural and functional enhancements with a specific focus on advancing the design of these composites for practical applications. A detailed exploration of SA/MXene composites is provided, highlighting their utility in various sectors, such as wearable electronics, wastewater treatment, biomedical applications, and electromagnetic interference (EMI) shielding. The review identifies the unique advantages conferred by incorporating MXene in these composites, examines the current challenges, and proposes future research directions to understand and optimize these promising materials thoroughly. The remarkable properties of MXenes are emphasized as crucial for advancing the performance of SA-based composites, indicating significant potential for developing high-performance composite materials.
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Affiliation(s)
- Kun Fang
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Pei Li
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China,.
| | - Bing Zhang
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Si Liu
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Xiaoyang Zhao
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Linxuan Kou
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Wei Xu
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Xiangyang Guo
- College of Life Science, Xinyang Normal University, Xinyang 464000, Henan, China
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China
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4
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Li Y, Li M, Li C, Chang J, Hui Y, Wang C, Guo W, Li Z. A sodium alginate - silk fibroin biosponge loaded with thrombin: Effective hemostasis and wound healing. Heliyon 2024; 10:e28047. [PMID: 38524596 PMCID: PMC10958712 DOI: 10.1016/j.heliyon.2024.e28047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/10/2024] [Accepted: 03/11/2024] [Indexed: 03/26/2024] Open
Abstract
In trauma first aid, rapid hemostasis is a priority, extricating patients from hemorrhagic shock and infection risks. This paper explores novel hemostatic materials, using ion-crosslinking and freeze-drying techniques. Iterative experiments determined optimal conditions for the temperature-variable mixing-freeze-drying chemical reaction of sodium alginate (SA)/silk fibroin (SF). We used SA, SA/SF, SA/SF-TB and commercial hemostatic sponge control samples to perform hemostasis experiments on rat liver injury and femoral artery injury models, and to perform wound healing experiments on rat back full-layer skin. The results showed that the hemostatic time and blood loss of SA/SF-TB group rats (liver hemorrhage model: 397.17 ± 34.80 mg, 77.83 ± 7.41 s; Femoral artery bleeding model: 940.33 ± 41.93 mg, 96.83 ± 4.07 s) was significantly better than other experimental groups, and similar to the commercial group. The wound healing experiment showed that the new granulation tissue thickness of SA/SF-TB group was thicker (380.39 ± 28.56 μm) at day 14. In addition, the material properties and biocompatibility of sponges were characterized by cell experiments and in vivo embedding experiments. All the results showed that the SA/SF-TB hemostatic sponge prepared in this study could not only seal the wound quickly and stop bleeding, but also promote the growth of epidermal cells and fibroblasts and accelerate wound healing. This new material solves the shortcomings of traditional materials such as low stability, limited shelf life, high unit price, and has good biocompatibility, easy preparation, rapid hemostasis and other excellent properties. Therefore, this innovative hemostatic material has great prospects and potential in clinical applications.
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Affiliation(s)
- Yansen Li
- Department of General Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100069, China
| | - Ming Li
- Trauma Medicine Center, Peking University People's Hospital, Beijing, 100044, China
- Key Laboratory of Trauma and Neural Regeneration, Ministry of Education, Peking University, Beijing, 100044, China
- National Center for Trauma Medicine, Beijing, 100044, China
| | - Chang Li
- Trauma Medicine Center, Peking University People's Hospital, Beijing, 100044, China
- Key Laboratory of Trauma and Neural Regeneration, Ministry of Education, Peking University, Beijing, 100044, China
- National Center for Trauma Medicine, Beijing, 100044, China
| | - Jing Chang
- Trauma Medicine Center, Peking University People's Hospital, Beijing, 100044, China
- Key Laboratory of Trauma and Neural Regeneration, Ministry of Education, Peking University, Beijing, 100044, China
- National Center for Trauma Medicine, Beijing, 100044, China
| | - Yuwen Hui
- Trauma Medicine Center, Peking University People's Hospital, Beijing, 100044, China
- Key Laboratory of Trauma and Neural Regeneration, Ministry of Education, Peking University, Beijing, 100044, China
- National Center for Trauma Medicine, Beijing, 100044, China
| | - Chuanlin Wang
- Trauma Medicine Center, Peking University People's Hospital, Beijing, 100044, China
- Key Laboratory of Trauma and Neural Regeneration, Ministry of Education, Peking University, Beijing, 100044, China
- National Center for Trauma Medicine, Beijing, 100044, China
| | - Wei Guo
- Emergency Department, Peking University People's Hospital, Beijing, 100044, China
| | - Zhulin Li
- Department of General Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100069, China
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5
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Akshaya S, Nathanael AJ. A Review on Hydrophobically Associated Alginates: Approaches and Applications. ACS OMEGA 2024; 9:4246-4262. [PMID: 38313527 PMCID: PMC10831841 DOI: 10.1021/acsomega.3c08619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 02/06/2024]
Abstract
Alginates are linear anionic polysaccharides, which are well-known for their biocompatible, nontoxic, and biodegradable nature. The polymer consists of alternating units of β-(1 → 4)-linked D-mannuronic acid (M) and α-(1 → 4)-linked L-guluronic acid (G) that have hydroxyl and carboxyl groups as the main functional groups. As a large number of free carboxyl and hydroxyl groups are present in the polymeric chain, the polymer is predominantly hydrophilic. The food and pharmaceutical industries have been the most extensive utilizers of alginates to produce gelling and thickening agents. However, by imparting hydrophobicity to alginates, the range of applications can be widened. Although there are reviews on alginate and its chemical modifications, reviews focusing on hydrophobically associated alginates have not been presented. The commonly used chemical modifications to incorporate hydrophobicity include esterification, Ugi reaction, reductive amination, and graft copolymerization. The hydrophobically modified alginates play an important role in delivery of hydrophobic drugs and pesticides as the modification increases the affinity toward hydrophobic components and helps in their sustained release. Due to their nontoxic and edible nature, they find use in the food industry as emulsion stabilizer to stabilize oil-in-water emulsions and to improve creaming ability. Further, alginate-based materials such as membranes, aerogels, and films are hydrophobically modified to improve their functionality and applicability to water treatment and food packaging. This Review aims to highlight the important chemical modifications and methods that are done to impart hydrophobicity to alginate, and the applications of hydrophobically modified alginates in different sectors ranging from drug delivery to food packaging are discussed.
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Affiliation(s)
- Shenbagaraman Akshaya
- Centre
for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- School
of Advanced Sciences (SAS), Vellore Institute
of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Arputharaj Joseph Nathanael
- Centre
for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
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6
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Santamaría E, Maestro A, González C. Use of Double Gelled Microspheres to Improve Release Control of Cinnamon-Loaded Nanoemulsions. Molecules 2023; 29:158. [PMID: 38202745 PMCID: PMC10780570 DOI: 10.3390/molecules29010158] [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: 11/17/2023] [Revised: 12/12/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024] Open
Abstract
The use of nanoemulsions as encapsulation systems for active ingredients, such as cinnamon oil, has been studied. A surfactant based on polyoxyethylene glycerol esters from coconut/palm kernel oil has been used. The nanoemulsions were obtained by the two most commonly low-energy emulsification methods, the composition inversion phase (PIC) and the temperature inversion phase (PIT) methods. Nanoemulsions were successfully obtained by both methods, with very small droplet sizes (5-14 nm) in both cases, but a greater stability was observed when the PIT method was used. Nanoemulsions were encapsulated by external gelation using two different polysaccharides, alginate or chitosan, dissolved in the continuous phase of the nanoemulsion. Then, the nanoemulsion was dropped into a bath with a gelling agent. To improve the release control of cinnamon oil and avoid the burst effect, beads prepared with one of the polysaccharides were coated with the second polysaccharide and then gelled again. Double gelled beads were successfully obtained, the core with chitosan and the outer layer (shell) with alginate. SEM images showed the morphology of the single beads presenting high porosity. When the beads were coated, the porosity decreased because the second polysaccharide molecules covered the pre-existing pores. The smoother surface was obtained when this second layer was, in turn, gelled. The release patterns at pH = 2 and pH = 7 were studied. It was observed that the double gelled bead provided a more gradual release, but maintained approximately the same amount of final released oil. The release patterns were fitted to the Korsmeyer-Peppas model. The fitting parameters reflected the effect of the different coating layers, correlating with different diffusion mechanisms according to the bead core and shell materials.
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Affiliation(s)
| | - Alicia Maestro
- Chemical Engineering and Analytical Chemistry Department, Faculty of Chemistry, Universitat de Barcelona, Martí i Franquès, 1, 08028 Barcelona, Spain; (E.S.); (C.G.)
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Bhatt P, Kumar V, Subramaniyan V, Nagarajan K, Sekar M, Chinni SV, Ramachawolran G. Plasma Modification Techniques for Natural Polymer-Based Drug Delivery Systems. Pharmaceutics 2023; 15:2066. [PMID: 37631280 PMCID: PMC10459779 DOI: 10.3390/pharmaceutics15082066] [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: 04/14/2023] [Revised: 06/14/2023] [Accepted: 06/23/2023] [Indexed: 08/27/2023] Open
Abstract
Natural polymers have attracted significant attention in drug delivery applications due to their biocompatibility, biodegradability, and versatility. However, their surface properties often limit their use as drug delivery vehicles, as they may exhibit poor wettability, weak adhesion, and inadequate drug loading and release. Plasma treatment is a promising surface modification technique that can overcome these limitations by introducing various functional groups onto the natural polymer surface, thus enhancing its physicochemical and biological properties. This review provides a critical overview of recent advances in the plasma modification of natural polymer-based drug delivery systems, with a focus on controllable plasma treatment techniques. The review covers the fundamental principles of plasma generation, process control, and characterization of plasma-treated natural polymer surfaces. It discusses the various applications of plasma-modified natural polymer-based drug delivery systems, including improved biocompatibility, controlled drug release, and targeted drug delivery. The challenges and emerging trends in the field of plasma modification of natural polymer-based drug delivery systems are also highlighted. The review concludes with a discussion of the potential of controllable plasma treatment as a versatile and effective tool for the surface functionalization of natural polymer-based drug delivery systems.
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Affiliation(s)
- Pankaj Bhatt
- KIET School of Pharmacy, KIET Group of Institutions, Ghaziabad 201206, Uttar Pradesh, India; (P.B.)
- Department of Pharmaceutical Sciences, Gurukul Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India;
| | - Vipin Kumar
- Department of Pharmaceutical Sciences, Gurukul Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India;
| | - Vetriselvan Subramaniyan
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, Tamil Nadu, India
| | - Kandasamy Nagarajan
- KIET School of Pharmacy, KIET Group of Institutions, Ghaziabad 201206, Uttar Pradesh, India; (P.B.)
| | - Mahendran Sekar
- School of Pharmacy, Monash University Malaysia, Subang Jaya 47500, Selangor, Malaysia
| | - Suresh V. Chinni
- Department of Biochemistry, Faculty of Medicine, Bioscience, and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602117, Tamil Nadu, India
| | - Gobinath Ramachawolran
- Department of Foundation, RCSI & UCD Malaysia Campus, No. 4, Jalan Sepoy Lines, Georgetown 10450, Pulau Pinang, Malaysia
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Santamaría E, Maestro A, González C. Encapsulation of Carvacrol-Loaded Nanoemulsion Obtained Using Phase Inversion Composition Method in Alginate Beads and Polysaccharide-Coated Alginate Beads. Foods 2023; 12:foods12091874. [PMID: 37174412 PMCID: PMC10178087 DOI: 10.3390/foods12091874] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/17/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Nanoemulsions have been widely studied as lipophilic compound loading systems. A low-energy emulsification method, phase inversion composition (PIC), was used to prepare oil-in-water nanoemulsions in a carvacrol-coconut oil/Tween 80®-(linoleic acid-potassium linoleate)/water system. The phase behaviour of several emulsification paths was studied and related to the composition range in which small-sized stable nanoemulsions could be obtained. An experimental design was carried out to determine the best formulation in terms of size and stability. Nanoemulsions with a very small mean droplet diameter (16-20 nm) were obtained and successfully encapsulated to add carvacrol to foods as a natural antimicrobial and antioxidant agent. They were encapsulated into alginate beads by external gelation. In order to improve the carvacrol kinetics release, the beads were coated with two different biopolymers: chitosan and pullulan. All formulations were analysed with scanning electron microscopy to investigate the surface morphology. The release patterns at different pHs were evaluated. Different kinetics release models were fitted in order to study the release mechanisms affecting each formulation. Chitosan-coated beads avoided the initial release burst effect, improving the beads' structure and producing a Fickian release. At basic pH, the chitosan-coated beads collapsed and the pullulan-coated beads moderately improved the release pattern of the alginate beads. For acid and neutral pHs, the chitosan-coated beads presented more sustained release patterns.
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Affiliation(s)
- Esther Santamaría
- Chemical Engineering and Analytical Chemistry Department, Faculty of Chemistry, Universitat de Barcelona, Martí i Franquès, 1, 08028 Barcelona, Spain
| | - Alicia Maestro
- Chemical Engineering and Analytical Chemistry Department, Faculty of Chemistry, Universitat de Barcelona, Martí i Franquès, 1, 08028 Barcelona, Spain
| | - Carmen González
- Chemical Engineering and Analytical Chemistry Department, Faculty of Chemistry, Universitat de Barcelona, Martí i Franquès, 1, 08028 Barcelona, Spain
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Microencapsulation of Rose Essential Oil Using Perilla Protein Isolate-Sodium Alginate Complex Coacervates and Application of Microcapsules to Preserve Ground Beef. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02944-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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10
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Sodium Alginate—Natural Microencapsulation Material of Polymeric Microparticles. Int J Mol Sci 2022; 23:ijms232012108. [PMID: 36292962 PMCID: PMC9603258 DOI: 10.3390/ijms232012108] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/30/2022] Open
Abstract
From the multitude of materials currently available on the market that can be used in the development of microparticles, sodium alginate has become one of the most studied natural anionic polymers that can be included in controlled-release pharmaceutical systems alongside other polymers due to its low cost, low toxicity, biocompatibility, biodegradability and gelatinous die-forming capacity in the presence of Ca2+ ions. In this review, we have shown that through coacervation, the particulate systems for the dispensing of drugs consisting of natural polymers are nontoxic, allowing the repeated administration of medicinal substances and the protection of better the medicinal substances from degradation, which can increase the capture capacity of the drug and extend its release from the pharmaceutical form.
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11
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Nitric oxide releasing alginate microspheres for antimicrobial application. Int J Biol Macromol 2022; 224:1244-1251. [DOI: 10.1016/j.ijbiomac.2022.10.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 11/05/2022]
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12
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Łętocha A, Miastkowska M, Sikora E. Preparation and Characteristics of Alginate Microparticles for Food, Pharmaceutical and Cosmetic Applications. Polymers (Basel) 2022; 14:polym14183834. [PMID: 36145992 PMCID: PMC9502979 DOI: 10.3390/polym14183834] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/08/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Alginates are the most widely used natural polymers in the pharmaceutical, food and cosmetic industries. Usually, they are applied as a thickening, gel-forming and stabilizing agent. Moreover, the alginate-based formulations such as matrices, membranes, nanospheres or microcapsules are often used as delivery systems. Alginate microparticles (AMP) are biocompatible, biodegradable and nontoxic carriers, applied to encapsulate hydrophilic active substances, including probiotics. Here, we report the methods most frequently used for AMP production and encapsulation of different actives. The technological parameters important in the process of AMP preparation, such as alginate concentration, the type and concentration of other reagents (cross-linking agents, oils, emulsifiers and pH regulators), agitation speed or cross-linking time, are reviewed. Furthermore, the advantages and disadvantages of alginate microparticles as delivery systems are discussed, and an overview of the active ingredients enclosed in the alginate carriers are presented.
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13
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Aghamiri S, Noofeli M, Saffarian P, Salehi Najafabadi Z, Goudarzi HR. Investigating preparation and characterisation of diphtheria toxoid-loaded on sodium alginate nanoparticles. IET Nanobiotechnol 2022; 16:199-209. [PMID: 35610737 PMCID: PMC9178656 DOI: 10.1049/nbt2.12088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/18/2022] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
This paper aims to investigate the preparation and characterisation of the alginate nanoparticles (NPs) as antigen delivery system loaded by diphtheria toxoid (DT). For this purpose, both the loading capacity (LC) and Loading efficiency (LE) of the alginate NPs burdened by DT are evaluated. Moreover, the effects of different concentrations of sodium alginate and calcium chloride on the NPs physicochemical characteristics are surveyed in addition to other physical conditions such as homogenization time and rate. To do so, the NPs are characterised using particle size and distribution, zeta potential, scanning electron microscopy, encapsulation efficiency, in vitro release study and FT‐IR spectroscopy. Subsequently, the effects of homogenization time and rate on the NPs are assessed. At the meantime, the NPs LC and efficiency in several DT concentrations are estimated. The average size of the NPs was 400.7 and 276.6 nm for unloaded and DT loaded, respectively. According to the obtained results, the zeta potential of the blank and DT loaded NPs are estimated as −23.7 mV and −21.2 mV, respectively. Whereas, the LC and LE were >80% and >90%, in that order. Furthermore, 95% of the releasing DT loaded NPs occurs at 140 h in the sustained mode without any bursting release. It can be concluded that the features of NPs such as morphology and particle size are strongly depended on the calcium chloride, sodium alginate concentrations and physicochemical conditions in the NPs formation process. In addition, appropriate concentrations of the sodium alginate and calcium ions would lead to obtaining the desirable NPs formation associated with the advantageous LE, LC (over 80%) and sustained in vitro release profile. Ultimately, the proposed NPs can be employed in vaccine formulation for the targeted delivery, controlled and slow antigen release associated with the improved antigen stability.
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Affiliation(s)
- Samira Aghamiri
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mojtaba Noofeli
- Department of Research and Development, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Parvaneh Saffarian
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Salehi Najafabadi
- Department of Human Bacterial Vaccine, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Hamid Reza Goudarzi
- Department of Research and Development, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
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Strong and Elastic Chitosan/Silk Fibroin Hydrogels Incorporated with Growth-Factor-Loaded Microspheres for Cartilage Tissue Engineering. Biomimetics (Basel) 2022; 7:biomimetics7020041. [PMID: 35466258 PMCID: PMC9036308 DOI: 10.3390/biomimetics7020041] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 02/04/2023] Open
Abstract
An emulsification method was developed for fabricating core-shell microspheres with a thick shell layer. Kartogenin (KGN) and platelet-derived growth factor BB (PDGF-BB) were respectively loaded into the core portion and the shell layer of the microspheres with high loading efficiency. The optimally built microspheres were combined with chitosan (CH) and silk fibroin (SF) to construct a new type of composite hydrogel with enhanced strength and elasticity, using genipin or/and tyrosinase as crosslinkers for the intended use in cartilage tissue engineering. The composite hydrogels were found to be thermo-responsive at physiological temperature and pH with well-defined injectability. Rheological measurements revealed that they had an elastic modulus higher than 6 kPa with a high ratio of elastic modulus to viscous modulus, indicative of their mechanically strong features. Compressive measurements demonstrated that they possessed well-defined elasticity. In addition, some gels had the ability to administer the temporal separation release of PDGF-BB and KGN in an approximately linear manner for several weeks. The released PDGF-BB was found to be bioactive based on its effects on Balb/c 3T3 cells. The composite gels supported the growth of seeded chondrocytes while preserving their phenotype. The results suggest that these composite gels have the potential for endogenous cartilage repair.
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15
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Microencapsulated Multifunctionalized Graphene Oxide Equipped with Chloroquine for Efficient and Sustained siRNA Delivery. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5866361. [PMID: 35469347 PMCID: PMC9034959 DOI: 10.1155/2022/5866361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 03/15/2022] [Indexed: 11/26/2022]
Abstract
A multifunctionalized graphene oxide (GO)-based carrier with conjugation of aminated-polyethylene glycol (PEG-diamine), octaarginine (R8), and folic acid (FA), which also contains chloroquine (CQ), a lysosomotropic agent, is introduced. The cellular uptake mechanisms and intracellular targeting of FA-functionalized nanocarriers are examined. The localized releases of CQ and siRNA intracellular delivery are evaluated. Microencapsulation of the nanocarrier complexed with genes in layer-by-layer coating of alginate microbeads is also investigated. The covalently coconjugated FA with PEG and R8 provides a stable formulation with increased cellular uptake compared to FA-free carrier. The CQ-equipped nanocarrier shows a 95% release of CQ at lysosomal pH. The localized release of the drug inside the lysosomes is verified which accelerates the cargo discharge into cytoplasm.
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16
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Evaluation of alginate-biopolymers (protein, hydrocolloid, starch) composite microgels prepared by the spray aerosol technique as a carrier for green tea polyphenols. Food Chem 2022; 371:131382. [PMID: 34808775 DOI: 10.1016/j.foodchem.2021.131382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 09/05/2021] [Accepted: 09/12/2021] [Indexed: 11/22/2022]
Abstract
Effects of low methoxyl pectin, milk protein concentrate (MPC), and waxy starch on the encapsulation of green tea-polyphenols in alginate gels produced using spray aerosol technique were evaluated. MPC and waxy starch treated first by cold-renneted induced gelation method and gelatinization method, respectively. DSC thermal analysis and FTIR spectroscopy were used to prove the presence of polyphenols in gel matrixes. The encapsulation efficiency (%EE) and the polyphenols release were investigated using Folin-Ciocalteu assay. The results showed that the addition of biopolymers into alginate gels increased the encapsulation efficiency (%EE) but reduced the release percentage of polyphenol in water and simulated gastric fluid (SGF). Among the three biopolymers, cold-renneted MPC gave the best protection for polyphenols encapsulated in alginate microgels. It increased %EE from 63% to 68% in fresh gels, reduced the release percentage in water from 72% to 62% and reduced the release percentage in SGF from 76% to 67%.
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17
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Kumar A, Sood A, Han SS. Poly (vinyl alcohol)-alginate as potential matrix for various applications: A focused review. Carbohydr Polym 2022; 277:118881. [PMID: 34893284 DOI: 10.1016/j.carbpol.2021.118881] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/23/2021] [Accepted: 11/08/2021] [Indexed: 02/08/2023]
Abstract
Advances in polymers have made significant contribution in diverse application oriented fields. Multidisciplinary applicability of polymers generates a range of strategies, which is pertinent in a wide range of fields. Blends of natural and synthetic polymers have spawned a different class of materials with synergistic effects. Specifically, poly (vinyl alcohol) (PVA) and alginate (AG) blends (PVAG) have demonstrated some promising results in almost every segment, ranging from biomedical to industrial sector. Combination of PVAG with other materials, immobilization with specific moieties and physical and chemical crosslinking could result in amendments in the structure and properties of the PVAG matrices. Here, we provide an overview of the recent developments in designing PVAG based matrix and complexes with their structural and functional properties. The article also provides a comprehensive outline on the applicability of PVAG matrix in wastewater treatment, biomedical, photocatalysis, food packaging, and fuel cells and sheds light on the challenges that need to be addressed. Finally, the review elaborates the future prospective of PVAG matrices in other unexplored fields like aircraft industry, nuclear science and space exploration.
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Affiliation(s)
- Anuj Kumar
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea; Institute of Cell Culture, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea.
| | - Ankur Sood
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea; Institute of Cell Culture, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea.
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18
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Yan M, Chen T, Zhang S, Lu T, Sun X. A core-shell structured alginate hydrogel beads with tunable thickness of carboxymethyl cellulose coating for pH responsive drug delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:763-778. [PMID: 33345720 DOI: 10.1080/09205063.2020.1866350] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
pH-responsive core-shell structured composite hydrogel beads, composed of a alginate (ALG) core coated with carboxymethyl cellulose (CMC) shell (ALG@CMC), were prepared by using in-situ gel preparation technology as a drug delivery system. An anti-inflammatory drug, indomethacin was loaded into the formed hydrogels as a model drug. The resulting gel samples were characterized by Fourier transforms infrared (FTIR) spectroscopy, thermo-gravimetric (TG) analysis, and scanning electron microscopy (SEM). The mechanical stability of all samples in phosphate buffered solution (PBS, pH 7.4) was approximately measured through oscillation experiments. Swelling and controlled drug release behaviors of ALG@CMC beads compared with ALG were studied in simulating gastric fluid of pH 1.2 or intestinal fluid of pH 7.4 at 37 °C. Oscillation experiments proved that the mechanical stability of ALG@CMC beads could be significantly improved by the CMC shell layer. The swelling and drug release behaviors revealed that the swelling and drug release rate of ALG@CMC beads were obviously slower than that of simple-ALG and both have significant pH responsiveness. The cumulative drug release from ALG, ALG@CMC-1, ALG@CMC-2 and ALG@CMC-3 was about 100%, 67%, 46% and 37% in simulated intestinal fluid of pH 7.4, respectively, while the drug release reached only about 2.0% in simulating gastric fluid of pH 1.2 within 720 min. These developed materials could potentially be employed as a pH-responsive drug delivery device in vivo.[Formula: see text].
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Affiliation(s)
- Mingzhu Yan
- College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Tiantian Chen
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China
| | - Shuping Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Ting Lu
- College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Ximeng Sun
- College of Chemistry, Zhengzhou University, Zhengzhou, China
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19
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Ramdhan T, Ching SH, Prakash S, Bhandari B. Physical and mechanical properties of alginate based composite gels. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.10.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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20
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Puiggalí-Jou A, Cazorla E, Ruano G, Babeli I, Ginebra MP, García-Torres J, Alemán C. Electroresponsive Alginate-Based Hydrogels for Controlled Release of Hydrophobic Drugs. ACS Biomater Sci Eng 2020; 6:6228-6240. [PMID: 33449669 DOI: 10.1021/acsbiomaterials.0c01400] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Stimuli-responsive biomaterials have attracted significant attention for the construction of on-demand drug release systems. The possibility of using external stimulation to trigger drug release is particularly enticing for hydrophobic compounds, which are not easily released by simple diffusion. In this work, an electrochemically active hydrogel, which has been prepared by gelling a mixture of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and alginate (Alg), has been loaded with curcumin (CUR), a hydrophobic drug with a wide spectrum of clinical applications. The PEDOT/Alg hydrogel is electrochemically active and organizes as segregated PEDOT- and Alg-rich domains, explaining its behavior as an electroresponsive drug delivery system. When loaded with CUR, the hydrogel demonstrates a controlled drug release upon application of a negative electrical voltage. Comparison with the release profiles obtained applying a positive voltage and in the absence of electrical stimuli indicates that the release mechanism dominating this system is complex because of not only the intermolecular interactions between the drug and the polymeric network but also the loading of a hydrophobic drug in a water-containing delivery system.
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Affiliation(s)
- Anna Puiggalí-Jou
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Barcelona 08019, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona 08930, Spain
| | - Eric Cazorla
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Barcelona 08019, Spain
| | - Guillem Ruano
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Barcelona 08019, Spain
| | - Ismael Babeli
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Barcelona 08019, Spain
| | - Maria-Pau Ginebra
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona 08930, Spain.,Biomaterials, Biomechanics and Tissue Engineering Group, Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya (UPC), Barcelona 08930, Spain
| | - Jose García-Torres
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona 08930, Spain.,Biomaterials, Biomechanics and Tissue Engineering Group, Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya (UPC), Barcelona 08930, Spain
| | - Carlos Alemán
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Barcelona 08019, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona 08930, Spain
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21
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Atencio S, Maestro A, Santamaría E, Gutiérrez JM, González C. Encapsulation of ginger oil in alginate-based shell materials. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Pittermannová A, Ruberová Z, Lizoňová D, Hubatová-Vacková A, Kašpar O, ZadraŽil A, Král V, Pechar M, Pola R, Bibette J, Bremond N, Štěpánek F, Tokárová V. Functionalized hydrogel microparticles prepared by microfluidics and their interaction with tumour marker carbonic anhydrase IX. SOFT MATTER 2020; 16:8702-8709. [PMID: 32996550 DOI: 10.1039/d0sm01018a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Microfluidics allows precise control of the synthesis of microparticles for specific applications, where size and morphology play an important role. In this work, we have introduced microfluidic chip design with dedicated extraction and gelation sections allowing to prepare hydrogel particles in the size range of a red blood cell. The influence of the extractive channel size, alginate concentration and type of storage media on the final size of the prepared alginate microparticles has been discussed. The second part of the work is dedicated to the surface modification of prepared particles using chitosan, pHPMA and the monoclonal antibody molecule, IgG M75. The specific interaction of the antibody molecule with an antigen domain of carbonic anhydrase IX, the transmembrane tumour protein associated with several types of cancer, is demonstrated by fluorescence imaging and compared to an isotypic antibody molecule.
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Affiliation(s)
- A Pittermannová
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic. and Laboratory Colloids and Divided Matter - Chemistry, Biology and Innovation (CBI) UMR8231, ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, Paris, France
| | - Z Ruberová
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
| | - D Lizoňová
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
| | - A Hubatová-Vacková
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
| | - O Kašpar
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
| | - A ZadraŽil
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
| | - V Král
- Laboratory of Structural Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - M Pechar
- Laboratory of Biomedical Polymers, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského Nám. 2, 162 06 Prague 6, Czech Republic
| | - R Pola
- Laboratory of Biomedical Polymers, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského Nám. 2, 162 06 Prague 6, Czech Republic
| | - J Bibette
- Laboratory Colloids and Divided Matter - Chemistry, Biology and Innovation (CBI) UMR8231, ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, Paris, France
| | - N Bremond
- Laboratory Colloids and Divided Matter - Chemistry, Biology and Innovation (CBI) UMR8231, ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, Paris, France
| | - F Štěpánek
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
| | - V Tokárová
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
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23
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Azimi-Boulali J, Madadelahi M, Madou MJ, Martinez-Chapa SO. Droplet and Particle Generation on Centrifugal Microfluidic Platforms: A Review. MICROMACHINES 2020; 11:mi11060603. [PMID: 32580516 PMCID: PMC7344714 DOI: 10.3390/mi11060603] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 01/09/2023]
Abstract
The use of multiphase flows in microfluidics to carry dispersed phase material (droplets, particles, bubbles, or fibers) has many applications. In this review paper, we focus on such flows on centrifugal microfluidic platforms and present different methods of dispersed phase material generation. These methods are classified into three specific categories, i.e., step emulsification, crossflow, and dispenser nozzle. Previous works on these topics are discussed and related parameters and specifications, including the size, material, production rate, and rotational speed are explicitly mentioned. In addition, the associated theories and important dimensionless numbers are presented. Finally, we discuss the commercialization of these devices and show a comparison to unveil the pros and cons of the different methods so that researchers can select the centrifugal droplet/particle generation method which better suits their needs.
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Affiliation(s)
- Javid Azimi-Boulali
- School of Engineering and Sciences, Tecnológico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, NL, Mexico;
| | - Masoud Madadelahi
- School of Engineering and Sciences, Tecnológico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, NL, Mexico;
- Correspondence: (M.M.); (S.O.M.-C.)
| | - Marc J. Madou
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, CA 92697, USA;
| | - Sergio O. Martinez-Chapa
- School of Engineering and Sciences, Tecnológico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, NL, Mexico;
- Correspondence: (M.M.); (S.O.M.-C.)
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24
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Aziz F, Achaby ME, Lissaneddine A, Aziz K, Ouazzani N, Mamouni R, Mandi L. Composites with alginate beads: A novel design of nano-adsorbents impregnation for large-scale continuous flow wastewater treatment pilots. Saudi J Biol Sci 2019; 27:2499-2508. [PMID: 32994705 PMCID: PMC7499392 DOI: 10.1016/j.sjbs.2019.11.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/10/2019] [Accepted: 11/18/2019] [Indexed: 11/22/2022] Open
Abstract
The sorption capacity of cadmium (Cd (II)) on three new generated nanocomposite beads sodium alginate (SA) based; SA-Clay (SA-C) beads, SA-Phosphate (SA-P) beads, and SA- Activated Charcoal (SA-Ch) beads was investigated in a batch scale, then a continuous flow reactor. The highest adsorption capacity (137 mg/g) was obtained for SA-Ch using 1000 mg/L of initial Cd (II). The isotherm results showed that the adsorption equilibrium is compatible with the Langmuir isotherm and the sorption capacity of SA-Nano-adsorbent beads is very high. The models used for representing kinetic data was given that the removal of Cd (II) be well-fitted by second-order reaction kinetics. For the fixed bed column treatment, the maximum breakthrough times were 30, 38, and 48 h respectively for the SA-C, SA-P, and SA-Ch. According to the obtained results, it was concluded that SA-Nano-adsorbent bead is an excellent designed material as a nanocomposite for cadmium elimination from wastewater in a continuous treatment process.
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Affiliation(s)
- Faissal Aziz
- Laboratory of Hydrobiology, Ecotoxicology, Sanitation & Global Changes (LHEAG, URAC 33), Semlalia Faculty of Sciences, Cadi Ayyad University, Marrakech, Morocco
- National Centre for Research and Study on Water and Energy (CNEREE), Cadi Ayyad University, Marrakech, Morocco
- Corresponding author at: Laboratory of Hydrobiology, Ecotoxicology, Sanitation and Global Changes (LHEAG, URAC33), Faculty of Sciences Semlalia, Marrakech, Morocco.
| | - Mounir El Achaby
- Materials Science and Nano-engineering (MSN) Department, Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
| | - Amina Lissaneddine
- Laboratory of Hydrobiology, Ecotoxicology, Sanitation & Global Changes (LHEAG, URAC 33), Semlalia Faculty of Sciences, Cadi Ayyad University, Marrakech, Morocco
- National Centre for Research and Study on Water and Energy (CNEREE), Cadi Ayyad University, Marrakech, Morocco
| | - Khalid Aziz
- Materials, Catalysis and Valorization of Natural Resources, Faculty of Sciences, University Ibn Zohr, BP 8106, Agadir, Morocco
| | - Naaila Ouazzani
- Laboratory of Hydrobiology, Ecotoxicology, Sanitation & Global Changes (LHEAG, URAC 33), Semlalia Faculty of Sciences, Cadi Ayyad University, Marrakech, Morocco
- National Centre for Research and Study on Water and Energy (CNEREE), Cadi Ayyad University, Marrakech, Morocco
| | - Rachid Mamouni
- Materials, Catalysis and Valorization of Natural Resources, Faculty of Sciences, University Ibn Zohr, BP 8106, Agadir, Morocco
| | - Laila Mandi
- Laboratory of Hydrobiology, Ecotoxicology, Sanitation & Global Changes (LHEAG, URAC 33), Semlalia Faculty of Sciences, Cadi Ayyad University, Marrakech, Morocco
- National Centre for Research and Study on Water and Energy (CNEREE), Cadi Ayyad University, Marrakech, Morocco
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25
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Lactoferrin-Loaded Alginate Microparticles to Target Clostridioides difficile Infection. J Pharm Sci 2019; 108:2438-2446. [PMID: 30851342 DOI: 10.1016/j.xphs.2019.02.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/17/2019] [Accepted: 02/27/2019] [Indexed: 12/30/2022]
Abstract
Some forms of bovine lactoferrin (bLf) are effective in delaying Clostridioides difficile growth and preventing toxin production. However, therapeutic use of bLf may be limited by protein stability issues. The objective of this study was to prepare and evaluate colon-targeted, pH-triggered alginate microparticles loaded with bioactive bLf and to evaluate their anti-C difficile defense properties in vitro. Different forms of metal-bound bLf were encapsulated in alginate microparticles using an emulsification or internal gelation method. The microparticles were coated with chitosan to control protein release. In vitro drug release studies were conducted in pH-simulated gastrointestinal conditions to investigate the release kinetics of encapsulated protein. No significant release of metal-bound bLf was observed at acidic pH; however, on reaching simulated colonic pH, most of the encapsulated lactoferrin was released. The application of bLf (5 mg/mL) delivered from alginate microparticles to human intestinal epithelial cells significantly reduced the cytotoxic effects of toxins A and B as well as bacterial supernatant on Caco-2 and Vero cells, respectively. These results are the first to suggest that alginate-bLf microparticles show protective effects against C difficile toxin-mediated epithelial damage and impairment of barrier function in human intestinal epithelial cells. The future potential of lactoferrin-loaded alginate microparticles against C difficile deserves further study.
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26
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Eshrati M, Amadei F, Van de Wiele T, Veschgini M, Kaufmann S, Tanaka M. Biopolymer-Based Minimal Formulations Boost Viability and Metabolic Functionality of Probiotics Lactobacillus rhamnosus GG through Gastrointestinal Passage. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11167-11175. [PMID: 30130114 DOI: 10.1021/acs.langmuir.8b01915] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The delivery of probiotic microorganisms as food additives via oral administration is a straightforward strategy to improve the intestinal microbiota. To protect probiotics from the harsh environments in the stomach and small intestine, it is necessary to formulate them in biocompatible carriers, which finally release them in the ileum and colon without losing their viability and functions. Despite major progresses in various polymer-based formulations, many of them are highly heterogeneous and too large in size and hence often "felt" by the tongue. In this study, we established a new formulation for probiotics Lactobacillus rhamnosus GG (LGG) and systematically correlated the physicochemical properties of formulations with the functions of probiotics after the delivery to different gastrointestinal compartments. By reducing the stirring speed by 1 order of magnitude during the emulsification of polyalginate in the presence of xanthan gum, we fabricated microparticles with a size well below the limit of human oral sensory systems. To improve the chemical stability, we deposited chitosan and polyalginate layers on particle surfaces and found that the deposition of a 20 nm-thick layer is already sufficient to perfectly sustain the viability of all LGG. Compared to free LGG, the colony-forming units of LGG in these formulations were by factors of 107 larger in stomach fluid and 104 larger in small intestine fluid. The metabolic functionality of LGG in polymer formulations was assessed by measuring the amount of lactate produced by LGG in a human gastrointestinal simulator, showing 5 orders of magnitude larger values compared to free LGG. The obtained results have demonstrated that the minimal formulation of LGG established here boosts not only the viability but also the metabolic functionality of probiotics throughout oral uptake, passage through the gastrointestinal tract, and delivery to the ileum and colon.
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Affiliation(s)
- Maryam Eshrati
- Physical Chemistry of Biosystems, Institute of Physical Chemistry , Heidelberg University , 69120 Heidelberg , Germany
| | - Federico Amadei
- Physical Chemistry of Biosystems, Institute of Physical Chemistry , Heidelberg University , 69120 Heidelberg , Germany
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering , Ghent University , 9000 Ghent , Belgium
| | - Mariam Veschgini
- Physical Chemistry of Biosystems, Institute of Physical Chemistry , Heidelberg University , 69120 Heidelberg , Germany
| | - Stefan Kaufmann
- Physical Chemistry of Biosystems, Institute of Physical Chemistry , Heidelberg University , 69120 Heidelberg , Germany
| | - Motomu Tanaka
- Physical Chemistry of Biosystems, Institute of Physical Chemistry , Heidelberg University , 69120 Heidelberg , Germany
- Center for Integrative Medicine and Physics, Institute for Advanced Studies , Kyoto University , 606-8501 Kyoto , Japan
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27
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Maheedhara RS, Sachar HS, Jing H, Das S. Ionic Diffusoosmosis in Nanochannels Grafted with End-Charged Polyelectrolyte Brushes. J Phys Chem B 2018; 122:7450-7461. [DOI: 10.1021/acs.jpcb.8b04827] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Raja Sampath Maheedhara
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Harnoor Singh Sachar
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Haoyuan Jing
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Siddhartha Das
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
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Scholz M, Reske T, Böhmer F, Hornung A, Grabow N, Lang H. In vitro chlorhexidine release from alginate based microbeads for periodontal therapy. PLoS One 2017; 12:e0185562. [PMID: 28973028 PMCID: PMC5626444 DOI: 10.1371/journal.pone.0185562] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 09/14/2017] [Indexed: 02/07/2023] Open
Abstract
Periodontitis is one of the most common infectious diseases globally that, if untreated, leads to destruction of the tooth supporting tissues and finally results in tooth loss. Evidence shows that standard procedures as mechanical root cleaning could be supported by further treatment options such as locally applied substances. Due to gingival crevicular fluid flow, substances are commonly washed out off the periodontal pockets. The evaluation of administration techniques and the development of local drug releasing devices is thus an important aspect in periodontal research. This study describes the development and examination of a new alginate based, biodegradable and easily applicable drug delivery system for chlorhexidine (CHX). Different micro beads were produced and loaded with CHX and the release profiles were investigated by high performance liquid chromatography (HPLC). The in vitro-demonstrated release of CHX from alginate based beads shows comparable releasing characteristics as clinically approved systems. Yet many characteristics of this new delivery system show to be favourable for periodontal therapy. Easy application by injection, low production costs and multifunctional adaptions to patient related specifics may improve the usage in routine care.
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Affiliation(s)
- Malte Scholz
- Department of Operative Dentistry and Periodontology, Rostock University Medical Center, Rostock, Germany
| | - Thomas Reske
- Institute for Biomedical Engineering, University of Rostock, Rostock, Germany
| | - Femke Böhmer
- Institute for General Practice, Rostock University Medical Center, Rostock, Germany
| | - Anne Hornung
- Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Center, Rostock, Germany
| | - Niels Grabow
- Institute for Biomedical Engineering, University of Rostock, Rostock, Germany
| | - Hermann Lang
- Department of Operative Dentistry and Periodontology, Rostock University Medical Center, Rostock, Germany
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Wang CH, Chang SJ, Tzeng YS, Shih YJ, Adrienne C, Chen SG, Chen TM, Dai NT, Cherng JH. Enhanced wound-healing performance of a phyto-polysaccharide-enriched dressing - a preclinical small and large animal study. Int Wound J 2017; 14:1359-1369. [PMID: 28941182 DOI: 10.1111/iwj.12813] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/26/2017] [Accepted: 08/04/2017] [Indexed: 12/24/2022] Open
Abstract
Alginate is a natural rich anionic polysaccharide (APS), commonly available as calcium alginate (CAPS). It can maintain a physiologically moist microenvironment, which minimises bacterial infection and facilitates wound healing at a wound site. Patients with burn injuries suffer from pain and an inflammatory response. In this study, we evaluated the CAPS dressing and traditional dressing containing carboxymethyl cellulose (CMC) for wound healing and scar tissue formation in a burn model of rat and swine. In our pilot study of a burn rat model to evaluate inflammatory response and wound healing, we found that the monocyte chemoattractant protein (MCP)-1 and transforming growth factor (TGF)-β were up-regulated in the CAPS treatment group. Next, the burn swine models tested positive for MCP-1 in a Gram-positive bacterial infection, and there was overproduction of TGF-β during the burn wound healing process. Rats were monitored daily for 1 week for cytokine assay and sacrificed on day 28 post-burn injury. The swine were monitored over 6 weeks. We further examined the pain and related factors and inflammatory cytokine expression in a rodent burns model monitored everyday for 7 days post-burn. Our results revealed that the efficacy of the dressing containing CAPS for wound repair post-burn was better than the CMC dressing with respect to natural wound healing and scar formation. The polysaccharide-enriched dressing exerted an antimicrobial effect on burn wounds, regulated the inflammatory response and stimulated anti-inflammatory cytokine release. However, one pain assessment method showed no significant difference in the reduction in levels of adenosine triphosphate in serum of rats after wound dressing in either the CAPS or CMC group. In conclusion, a polysaccharide-enriched dressing outperformed a traditional dressing in reducing wound size, minimising hypertrophic scar formation, regulating cytokines and maximising antimicrobial effects.
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Affiliation(s)
- Chih-Hsin Wang
- Department of Plastic and Reconstructive Surgery, Tri-Service General Hospital, Taipei, Taiwan (R.O.C)
| | - Shu-Jen Chang
- Department of Dentistry, National Yang-Ming University, National Defense Medical Center, Taipei, Taiwan (R.O.C)
| | - Yuan-Sheng Tzeng
- Department of Plastic and Reconstructive Surgery, Tri-Service General Hospital, Taipei, Taiwan (R.O.C)
| | - Yu-Jen Shih
- Department of Plastic and Reconstructive Surgery, Tri-Service General Hospital, Taipei, Taiwan (R.O.C)
| | - Chang Adrienne
- Department of Chemistry, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Shyi-Gen Chen
- Department of Plastic and Reconstructive Surgery, Tri-Service General Hospital, Taipei, Taiwan (R.O.C)
| | - Tim-Mo Chen
- Department of Plastic and Reconstructive Surgery, Tri-Service General Hospital, Taipei, Taiwan (R.O.C)
| | - Niann-Tzyy Dai
- Department of Plastic and Reconstructive Surgery, Tri-Service General Hospital, Taipei, Taiwan (R.O.C)
| | - Juin-Hong Cherng
- Department and Graduate Institute of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan (R.O.C).,General Clinical Research Center, Tri-Service General Hospital, Taipei, Taiwan (R.O.C).,Department of Gerontological Health Care, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan (R.O.C)
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Agüero L, Zaldivar-Silva D, Peña L, Dias ML. Alginate microparticles as oral colon drug delivery device: A review. Carbohydr Polym 2017; 168:32-43. [DOI: 10.1016/j.carbpol.2017.03.033] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/18/2017] [Accepted: 03/09/2017] [Indexed: 01/13/2023]
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31
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Li H, Chen G, Das S. Electric double layer electrostatics of pH-responsive spherical polyelectrolyte brushes in the decoupled regime. Colloids Surf B Biointerfaces 2016; 147:180-190. [DOI: 10.1016/j.colsurfb.2016.07.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 07/20/2016] [Accepted: 07/25/2016] [Indexed: 11/29/2022]
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32
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Entrapment of cross-linked cellulase colloids in alginate beads for hydrolysis of cellulose. Colloids Surf B Biointerfaces 2016; 145:862-869. [DOI: 10.1016/j.colsurfb.2016.06.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 05/16/2016] [Accepted: 06/05/2016] [Indexed: 11/15/2022]
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33
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Acharya AP, Little SR. Stapled endosome disrupting alginate particles for cytosolic delivery of cations. J Drug Target 2016; 23:690-7. [PMID: 26453164 DOI: 10.3109/1061186x.2015.1048517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Divalent cations, the most prevalent minerals in the body, are responsible for a wide variety of cellular functions including signaling, proliferation, differentiation and cell death, and therefore their transmembrane transportation is tightly regulated. Despite the importance of divalent cations in cell activity, there are currently no intracellular delivery methods for divalent cations or modulation of intracellular levels of minerals. Here, we describe endosome disrupting alginate nanoparticles termed Alginoketals, which can deliver divalent cations to the cytosol of the cells. Alginoketals are generated by crosslinking alginic acid with endosome disrupting ketals, and using divalent cations as the stapling or binding agent. We show that Alginoketals were able to deliver copper (II) in the cytosol of the cancer cells thereby disrupting copper homeostasis and inducing cell death via accumulation of hydrogen peroxide. Alginoketal-copper (II)-based particles act as superoxide dismutase mimics and are the first class of divalent cation delivery vehicles, with potential application in cancer therapy, regenerative medicine and drug delivery.
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Affiliation(s)
- Abhinav P Acharya
- a Department of Chemical and Petroleum Engineering , University of Pittsburgh , Pittsburgh , PA , USA
| | - Steven R Little
- a Department of Chemical and Petroleum Engineering , University of Pittsburgh , Pittsburgh , PA , USA
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Pistone S, Qoragllu D, Smistad G, Hiorth M. Multivariate analysis for the optimization of polysaccharide-based nanoparticles prepared by self-assembly. Colloids Surf B Biointerfaces 2016; 146:136-43. [PMID: 27288663 DOI: 10.1016/j.colsurfb.2016.05.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 05/02/2016] [Accepted: 05/18/2016] [Indexed: 11/15/2022]
Abstract
Polysaccharide-based nanoparticles are promising carriers for drug delivery applications. The particle size influences the biodistribution of the nanoparticles; hence size distributions and polydispersity index (PDI) are critical characteristics. However, the preparation of stable particles with a low PDI is a challenging task and is usually based on empirical trials. In this study, we report the use of multivariate evaluation to optimize the formulation factors for the preparation of alginate-zinc nanoparticles by ionotropic gelation. The PDI was selected as the response variable. Particle size, size distributions, zeta potential and pH of the samples were also recorded. Two full factorial (mixed-level) designs were analyzed by partial least squares regression (PLS). In the first design, the influence of the polysaccharide and the crosslinker concentrations were studied. The results revealed that size distributions with a low PDI were obtained by using a low polysaccharide concentrations (0.03-0.05%) and a zinc concentration of 0.03% (w/w). However, a high polysaccharide concentration can be advantageous for drug delivery systems. Therefore, in the second design, a high alginate concentration was used (0.09%) and a reduction in the PDI was obtained by simultaneously increasing the ionic strength of the solvent and the zinc concentration. The multivariate analysis also revealed the interaction between the factors in terms of their effects on the PDI; hence, compared to traditional univariate analyses, the multivariate analysis allowed us to obtain a more complete understanding of the effects of the factors scrutinized. In addition, the results are considered useful in order to avoid extensive empirical tests for future formulation studies.
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Affiliation(s)
- Sara Pistone
- SiteDel Group, School of Pharmacy, University of Oslo, P. O. Box 1068, Blindern, 0316 Oslo, Norway.
| | - Dafina Qoragllu
- SiteDel Group, School of Pharmacy, University of Oslo, P. O. Box 1068, Blindern, 0316 Oslo, Norway.
| | - Gro Smistad
- SiteDel Group, School of Pharmacy, University of Oslo, P. O. Box 1068, Blindern, 0316 Oslo, Norway.
| | - Marianne Hiorth
- SiteDel Group, School of Pharmacy, University of Oslo, P. O. Box 1068, Blindern, 0316 Oslo, Norway.
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Maan GK, Bajpai J, Bajpai AK. Investigation of In Vitro Release of Cisplatin from Electrostatically Crosslinked Chitosan-Alginate Nanoparticles. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/15533174.2015.1137012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Gurvindar Kaur Maan
- Bose Memorial Research Lab, Department of Chemistry, Government Autonomous Science College, Jabalpur, India
| | - Jaya Bajpai
- Bose Memorial Research Lab, Department of Chemistry, Government Autonomous Science College, Jabalpur, India
| | - Anil K. Bajpai
- Bose Memorial Research Lab, Department of Chemistry, Government Autonomous Science College, Jabalpur, India
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Somasundaram VH, Pillai R, Malarvizhi G, Ashokan A, Gowd S, Peethambaran R, Palaniswamy S, Unni AKK, Nair S, Koyakutty M. Biodegradable Radiofrequency Responsive Nanoparticles for Augmented Thermal Ablation Combined with Triggered Drug Release in Liver Tumors. ACS Biomater Sci Eng 2016; 2:768-779. [DOI: 10.1021/acsbiomaterials.5b00511] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Vijay Harish Somasundaram
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Rashmi Pillai
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Giridharan Malarvizhi
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Anusha Ashokan
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Siddaramana Gowd
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Reshmi Peethambaran
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Shanmugasundaram Palaniswamy
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - AKK Unni
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Shantikumar Nair
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
| | - Manzoor Koyakutty
- Amrita Center for Nanosciences & Molecular Medicine, Amrita Institute of Medical Science & Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Kochi, Kerala 682041, India
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37
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Alhaique F, Casadei MA, Cencetti C, Coviello T, Di Meo C, Matricardi P, Montanari E, Pacelli S, Paolicelli P. From macro to nano polysaccharide hydrogels: An opportunity for the delivery of drugs. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2015.09.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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On-chip preparation of calcium alginate particles based on droplet templates formed by using a centrifugal microfluidic technique. J Colloid Interface Sci 2016; 466:20-7. [DOI: 10.1016/j.jcis.2015.12.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 11/29/2015] [Accepted: 12/01/2015] [Indexed: 11/18/2022]
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39
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40
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Jain SK, Prajapati N, Rajpoot K, Kumar A. A novel sustained release drug–resin complex-based microbeads of ciprofloxacin HCl. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1891-1900. [DOI: 10.3109/21691401.2015.1111233] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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41
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Das S, Banik M, Chen G, Sinha S, Mukherjee R. Polyelectrolyte brushes: theory, modelling, synthesis and applications. SOFT MATTER 2015; 11:8550-83. [PMID: 26399305 DOI: 10.1039/c5sm01962a] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Polyelectrolyte (PE) brushes are a special class of polymer brushes (PBs) containing charges. Polymer chains attain "brush"-like configuration when they are grafted or get localized at an interface (solid-fluid or liquid-fluid) with sufficiently close proximity between two-adjacent grafted polymer chains - such a proximity triggers a particular nature of interaction between the adjacent polymer molecules forcing them to stretch orthogonally to the grafting interface, instead of random-coil arrangement. In this review, we discuss the theory, synthesis, and applications of PE brushes. The theoretical discussion starts with the standard scaling concepts for polymer and PE brushes; following that, we shed light on the state of the art in continuum modelling approaches for polymer and PE brushes directed towards analysis beyond the scaling calculations. A special emphasis is laid in pinpointing the cases for which the PE electrostatic effects can be de-coupled from the PE entropic and excluded volume effects; such de-coupling is necessary to appropriately probe the complicated electrostatic effects arising from pH-dependent charging of the PE brushes and the use of these effects for driving liquid and ion transport at the interfaces covered with PE brushes. We also discuss the atomistic simulation approaches for polymer and PE brushes. Next we provide a detailed review of the existing approaches for the synthesis of polymer and PE brushes on interfaces, nanoparticles, and nanochannels, including mixed brushes and patterned brushes. Finally, we discuss some of the possible applications and future developments of polymer and PE brushes grafted on a variety of interfaces.
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Affiliation(s)
- Siddhartha Das
- Department of Mechanical Engineering, University of Maryland, College Park, MD-20742, USA.
| | - Meneka Banik
- Instability and Soft Patterning Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Pin - 721302, Kharagpur, West Bengal, India
| | - Guang Chen
- Department of Mechanical Engineering, University of Maryland, College Park, MD-20742, USA.
| | - Shayandev Sinha
- Department of Mechanical Engineering, University of Maryland, College Park, MD-20742, USA.
| | - Rabibrata Mukherjee
- Instability and Soft Patterning Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Pin - 721302, Kharagpur, West Bengal, India
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Abstract
Due to their hydrophilic, biocompatible, and highly tunable nature, hydrogel materials have attracted strong interest in the recent years for numerous biotechnological applications. In particular, their solution-like environment and non-fouling nature in complex biological samples render hydrogels as ideal substrates for biosensing applications. Hydrogel coatings, and later, gel dot surface microarrays, were successfully used in sensitive nucleic acid assays and immunoassays. More recently, new microfabrication techniques for synthesizing encoded particles from hydrogel materials have enabled the development of hydrogel-based suspension arrays. Lithography processes and droplet-based microfluidic techniques enable generation of libraries of particles with unique spectral or graphical codes, for multiplexed sensing in biological samples. In this review, we discuss the key questions arising when designing hydrogel particles dedicated to biosensing. How can the hydrogel material be engineered in order to tune its properties and immobilize bioprobes inside? What are the strategies to fabricate and encode gel particles, and how can particles be processed and decoded after the assay? Finally, we review the bioassays reported so far in the literature that have used hydrogel particle arrays and give an outlook of further developments of the field.
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Affiliation(s)
- Gaelle C. Le Goff
- Novartis Institutes for Biomedical Research, 250 Massachusetts
Avenue, Cambridge 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Rathi L. Srinivas
- Department of Chemical Engineering, Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - W. Adam Hill
- Novartis Institutes for Biomedical Research, 250 Massachusetts
Avenue, Cambridge 02139, USA
| | - Patrick S. Doyle
- Department of Chemical Engineering, Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
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43
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Alginate droplets pre-crosslinked in microchannels to prepare monodispersed spherical microgels. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.06.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Jain SK, Kumar A, Kumar A, Pandey AN, Rajpoot K. Development and in vitro characterization of a multiparticulate delivery system for acyclovir-resinate complex. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1266-75. [DOI: 10.3109/21691401.2015.1024841] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Sunil K. Jain
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhattisgarh, India
| | - Ajay Kumar
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhattisgarh, India
| | - Amrish Kumar
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhattisgarh, India
| | - Aditya N. Pandey
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhattisgarh, India
| | - Kuldeep Rajpoot
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhattisgarh, India
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Comparative evaluation of polymeric and waxy microspheres for combined colon delivery of ascorbic acid and ketoprofen. Int J Pharm 2015; 485:365-73. [PMID: 25746948 DOI: 10.1016/j.ijpharm.2015.02.073] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 02/26/2015] [Accepted: 02/28/2015] [Indexed: 11/23/2022]
Abstract
The goal of this work was to combine the ketoprofen anti-inflammatory effect with the ascorbic acid antioxidant properties for a more efficient treatment of colonic pathologies. With this aim, microspheres (MS) based on both waxy materials (ceresine, Precirol(®) and Compritol(®)) or hydrophilic biopolymers (pectine, alginate and chitosan) loaded with the two drugs were developed, physicochemically characterized and compared in terms of entrapment efficiency, in vitro release profiles, potential toxicity and drug permeation properties across the Caco-2 cell line. Waxy MS revealed an high encapsulation efficiency of ketoprofen but a not detectable entrapment of ascorbic acid, while polymeric MS showed a good entrapment efficiency of both drugs. All MS need a gastro-resistant coating, to avoid any premature release of the drugs. Ketoprofen release rate from polymeric matrices was clearly higher than from the waxy ones. In contrast, the ASC release rate was higher, due to its high hydro-solubility. Cytotoxicity studies revealed the safety of all the formulations. Transport studies showed that the ketoprofen apparent permeability increased, when formulated with the different MS. In conclusion, only polymeric MS enabled an efficient double encapsulation of both the hydrophilic and lipophilic drugs, and, in addition, presented higher drug release rate and stronger enhancer properties.
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46
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Improving the controlled delivery formulations of caffeine in alginate hydrogel beads combined with pectin, carrageenan, chitosan and psyllium. Food Chem 2015; 167:378-86. [DOI: 10.1016/j.foodchem.2014.07.011] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 06/02/2014] [Accepted: 07/02/2014] [Indexed: 11/22/2022]
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47
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Sosnik A. Alginate Particles as Platform for Drug Delivery by the Oral Route: State-of-the-Art. ISRN PHARMACEUTICS 2014; 2014:926157. [PMID: 25101184 PMCID: PMC4004034 DOI: 10.1155/2014/926157] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 02/25/2014] [Indexed: 11/17/2022]
Abstract
Pharmaceutical research and development aims to design products with ensured safety, quality, and efficacy to treat disease. To make the process more rational, coherent, efficient, and cost-effective, the field of Pharmaceutical Materials Science has emerged as the systematic study of the physicochemical properties and behavior of materials of pharmaceutical interest in relation to product performance. The oral route is the most patient preferred for drug administration. The presence of a mucus layer that covers the entire gastrointestinal tract has been exploited to expand the use of the oral route by developing a mucoadhesive drug delivery system that showed a prolonged residence time. Alginic acid and sodium and potassium alginates have emerged as one of the most extensively explored mucoadhesive biomaterials owing to very good cytocompatibility and biocompatibility, biodegradation, sol-gel transition properties, and chemical versatility that make possible further modifications to tailor their properties. The present review overviews the most relevant applications of alginate microparticles and nanoparticles for drug administration by the oral route and discusses the perspectives of this biomaterial in the future.
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Affiliation(s)
- Alejandro Sosnik
- Group of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology De-Jur Building, Office 607, Technion City, 32000 Haifa, Israel
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Jiang H, Tian R, Hu W, Jia Y, Yuan P, Wang J, Zhang L. Formulation and evaluation of gastroretentive floating drug delivery system of dipyridamole. Drug Dev Ind Pharm 2014; 41:674-80. [DOI: 10.3109/03639045.2014.893355] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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49
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Woo E, Park H, Lee KY. Shear reversible cell/microsphere aggregate as an injectable for tissue regeneration. Macromol Biosci 2014; 14:740-8. [PMID: 24436180 DOI: 10.1002/mabi.201300365] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 11/28/2013] [Indexed: 11/12/2022]
Abstract
Injectable delivery systems have been widely used in tissue engineering as they can deliver cells into the body in a minimally invasive manner. In this study, it is hypothesized that microspheres with a similar size of cells could effectively form a shear reversible aggregate in the presence of cells and the aggregate could be useful to engineer tissues. Alginate microspheres are prepared by an emulsion method, followed by modification with a peptide containing the arginine-glycine-aspartic acid (RGD) sequence. RGD-modified alginate microspheres form an aggregate in the presence of chondrocytes, and the aggregation behavior is shear reversible. This cell/microsphere aggregate is useful to deliver chondrocytes into an animal model using a syringe, and effectively regenerates cartilage tissues in vivo.
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Affiliation(s)
- Eunkyeong Woo
- Department of Bioengineering, Hanyang University, Seoul, 133-791, Republic of Korea
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Interpenetrating Polymer Networks polysaccharide hydrogels for drug delivery and tissue engineering. Adv Drug Deliv Rev 2013; 65:1172-87. [PMID: 23603210 DOI: 10.1016/j.addr.2013.04.002] [Citation(s) in RCA: 320] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 03/15/2013] [Accepted: 04/10/2013] [Indexed: 11/22/2022]
Abstract
The ever increasing improvements of pharmaceutical formulations have been often obtained by means of the use of hydrogels. In particular, environmentally sensitive hydrogels have been investigated as "smart" delivery systems capable to release, at the appropriate time and site of action, entrapped drugs in response to specific physiological triggers. At the same time the progress in the tissue engineering research area was possible because of significant innovations in the field of hydrogels. In recent years multicomponent hydrogels, such as semi-Interpenetrating Polymer Networks (semi-IPNs) and Interpenetrating Polymer Networks (IPNs) have emerged as innovative biomaterials for drug delivery and as scaffolds for tissue engineering. These interpenetrated hydrogel networks, which can be obtained by either chemical or physical crosslinking, in most cases show physico-chemical properties that can remarkably differ from those of the macromolecular constituents. Among the synthetic and natural polymers that have been used for the preparation of semi-IPNs and IPNs, polysaccharides represent a class of macromolecules of particular interest because they are usually abundant, available from renewable sources and have a large variety of composition and properties that may allow appropriately tailored chemical modifications. Sometimes both macromolecular systems are based on polysaccharides but often also synthetic polymers are present together with polysaccharide chains. The description and discussion of (semi)-IPNs reported here, will allow to acquire a better understanding of the potential and wide range of applications of IPN polysaccharide hydrogels. A quite large number of polysaccharides have been investigated for the design of (semi)-IPNs for drug delivery and tissue engineering applications. This review article however mainly focuses on two of the most studied polysaccharide-based (semi)-IPNs, namely those obtained using alginate and hyaluronic acid. An overview of the methods of preparation, the properties, the performances as drug delivery systems and as scaffolds for tissue engineering, of (semi)-IPNs obtained using these two polysaccharides and their derivatives, will be given.
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