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Das IJ, Bal T. Evaluation of Opuntia-carrageenan superporous hydrogel (OPM-CRG SPH) as an effective biomaterial for drug release and tissue scaffold. Int J Biol Macromol 2024; 256:128503. [PMID: 38040152 DOI: 10.1016/j.ijbiomac.2023.128503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 12/03/2023]
Abstract
The process of wound healing involves complex interplay of systems biology, dependent on coordination of various cell types, both intra and extracellular mechanisms, proteins, and signaling pathways. To enhance these interactions, drugs must be administered precisely and continuously, effectively regulating the intricate mechanisms involved in the body's response to injury. Controlled drug delivery systems (DDS) play a pivotal role in achieving this objective. A proficient DDS shields the wound from mechanical, oxidative, and enzymatic stress, against bacterial contamination ensuring an adequate oxygen supply while optimizing the localized and sustained delivery of drugs to target tissue. A pH-sensitive SPH was designed by blending two natural polysaccharides, Opuntia mucilage and carrageenan, using microwave irradiation and optimized according to swelling index at pH 1.2, 7.0, and 8.0 and % porosity. Optimized grade was analyzed for surface hydrophilicity-hydrophobicity using OCA. Analytical characterizations were performed using FTIR, TGA, XRD, DSC, reflecting semicrystalline behavior. Mechanical property confirmed adequate strength. In vitro drug release study with ciprofloxacin-HCL as model drug showed 97.8 % release within 10 h, fitting to the Korsmeyer-Peppas model following diffusion and erosion mechanism. In vitro antimicrobial, anti-inflammatory assays, zebrafish toxicity, and animal studies in mice with SPH concluded it as a novel biomaterial.
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Affiliation(s)
- Itishree Jogamaya Das
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, India
| | - Trishna Bal
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, India.
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2
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Salmasi SS, Ehsani M, Zandi M, Saeed M, Sabeti M. Polysaccharide-based (kappa carrageenan/carboxymethyl chitosan) nanofibrous membrane loaded with antifibrinolytic drug for rapid hemostasis- in vitro and in vivo evaluation. Int J Biol Macromol 2023; 247:125786. [PMID: 37451380 DOI: 10.1016/j.ijbiomac.2023.125786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/20/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
This work aimed to establish a novel membrane consisting of hemostatic polysaccharides, kappa-carrageenan (KC), and carboxymethyl chitosan (CMC) in tandem with polyvinyl alcohol that spun together as a matrix and loaded with tranexamic acid (TXA) as antifibrinolytic agent for further coagulation effect during and after oral surgeries. The electrospinning of KC was done for the first time and in comparison of CMC has better hemostatic efficacy. The effect of the hemostat was investigated by its surface morphology (SEM), FTIR/ATR analysis, swelling behavior in both PBS and blood, hydrophilicity, porosity, mechanical properties, and cumulative release rate. The effect of materials and the drug concentration ratio were considered. The effect of acetic acid percent in aqueous solutions of CMC/PVA and KC/PVA on morphology was investigated. The cell culture assay showed that all membranes interacted well (98 %) with fibroblast cells attached and grown on the fabricated substrate. Furthermore, the membranes are evaluated by clotting time, whole blood clotting, hemocompatibility, and platelet and RBC adhesion tests. Also, the hemostatic performance of the membrane was analyzed in vivo, using the tail and liver bleeding model in rats. Therefore, TXA loading into CMC and KC dressing could be an attractive hemostatic system for various clinical applications.
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Affiliation(s)
- Sara Salamzadeh Salmasi
- Department of Plastics, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran; Department of Biomaterial, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
| | - Morteza Ehsani
- Department of Plastics, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran.
| | - Mojgan Zandi
- Department of Biomaterial, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran.
| | - Mahdi Saeed
- Soft Tissue Engineering Research Center, Tissue Engineering and Regenerative Medicine Institute, Central Tehran Branch, Islamic Azad University, Tehran, Iran; Department of Biomedical Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran
| | - Mike Sabeti
- University of California, San Francisco School of Dentistry, San Francisco, CA, United States of America
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State of the Art of Hydrogel Wound Dressings Developed by Ionizing Radiation. Gels 2023; 9:gels9010055. [PMID: 36661821 PMCID: PMC9858288 DOI: 10.3390/gels9010055] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/12/2023] Open
Abstract
The development of an ideal hydrogel wound dressing with excellent characteristics is currently a significant demand in wound therapy. The ideal hydrogel wound dressing must provide a moist environment between the wound and the dressing, promote wound healing, absorb excess exudate and toxins, be completely sterile, and not adhere to the wound. The evolution and current status of research on hydrogel wound dressings obtained exclusively through production by ionizing radiation are discussed in this paper review, along with the preparation methods, properties, standard characterization techniques, and their applications in wound dressing. First, we described the methods for synthesizing hydrogel wound dressings with ionizing radiation. Then, standard methods of characterization of hydrogel wound dressings such as gel fraction, swelling degree, sol-gel analysis, rheological properties, morphology, moisture retention capability, and water vapor transmission rate have been investigated. In the end, specific attention was paid to the drug release, antibacterial performance, and cytotoxicity of hydrogels. Moreover, the application of hydrogel in regenerative medicine as wound healing dressing was covered.
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Neamtu B, Barbu A, Negrea MO, Berghea-Neamțu CȘ, Popescu D, Zăhan M, Mireșan V. Carrageenan-Based Compounds as Wound Healing Materials. Int J Mol Sci 2022; 23:ijms23169117. [PMID: 36012381 PMCID: PMC9409225 DOI: 10.3390/ijms23169117] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/07/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
The following review is focused on carrageenan, a heteroglycan-based substance that is a very significant wound healing biomaterial. Every biomaterial has advantages and weaknesses of its own, but these drawbacks are typically outweighed by combining the material in various ways with other substances. Carrageenans' key benefits include their water solubility, which enables them to keep the wound and periwound damp and absorb the wound exudate. They have low cytotoxicity, antimicrobial and antioxidant qualities, do not stick to the wound bed, and hence do not cause pain when removed from the wounded region. When combined with other materials, they can aid in hemostasis. This review emphasizes the advantages of using carrageenan for wound healing, including the use of several mixes that improve its properties.
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Affiliation(s)
- Bogdan Neamtu
- Pediatric Research Department, Pediatric Hospital Sibiu, 550166 Sibiu, Romania
- Faculty of Medicine, “Lucian Blaga” University of Sibiu, 550169 Sibiu, Romania
- Faculty of Engineering, “Lucian Blaga” University of Sibiu, 550025 Sibiu, Romania
- Correspondence: (B.N.); (A.B.); Tel.: +40-773-994-375 (B.N.); +40-748-063-335 (A.B.)
| | - Andreea Barbu
- Pediatric Research Department, Pediatric Hospital Sibiu, 550166 Sibiu, Romania
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
- Correspondence: (B.N.); (A.B.); Tel.: +40-773-994-375 (B.N.); +40-748-063-335 (A.B.)
| | | | - Cristian Ștefan Berghea-Neamțu
- Faculty of Medicine, “Lucian Blaga” University of Sibiu, 550169 Sibiu, Romania
- Department of Pediatric Surgery, Pediatric Hospital Sibiu, 550166 Sibiu, Romania
| | - Dragoș Popescu
- Faculty of Medicine, “Lucian Blaga” University of Sibiu, 550169 Sibiu, Romania
- Obstetrics and Gynecology Clinic, County Clinical Emergency Hospital, 550245 Sibiu, Romania
| | - Marius Zăhan
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Vioara Mireșan
- Faculty of Animal Science and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
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Abid U, Pervaiz F, Shoukat H, Rehman S, Abid S. Fabrication and characterization of novel semi-IPN hydrogels based on xanthan gum and polyvinyl pyrrolidone-co-poly (2-acrylamido-2-methyl propane sulfonic acid) for the controlled delivery of venlafaxine. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2021.1995421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Usman Abid
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Fahad Pervaiz
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Hina Shoukat
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Sadia Rehman
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Sobia Abid
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
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6
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Rathod L, Bhowmick S, Patel P, Sawant K. Calendula flower extract loaded PVA hydrogel sheet for wound management: Optimization, characterization and in-vivo study. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ujjwal RR, Yadav A, Tripathi S, Krishna STVS. Polymer-Based Nanotherapeutics for Burn Wounds. Curr Pharm Biotechnol 2021; 23:1460-1482. [PMID: 34579630 DOI: 10.2174/1389201022666210927103755] [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: 03/23/2021] [Revised: 07/11/2021] [Accepted: 08/06/2021] [Indexed: 11/22/2022]
Abstract
Burn wounds are complex and intricate injuries that have become a common cause of trauma leading to significant mortality and morbidity every year. Dressings are applied to burn wounds with the aim of promoting wound healing, preventing burn infection and restoring skin function. The dressing protects the injury and contributes to recovery of dermal and epidermal tissues. Polymer-based nanotherapeutics are increasingly being exploited as burn wound dressings. Natural polymers such as cellulose, chitin, alginate, collagen, gelatin and synthetic polymers like poly (lactic-co-glycolic acid), polycaprolactone, polyethylene glycol, and polyvinyl alcohol are being obtained as nanofibers by nanotechnological approaches like electrospinning and have shown wound healing and re-epithelialization properties. Their biocompatibility, biodegradability, sound mechanical properties and unique structures provide optimal microenvironment for cell proliferation, differentiation, and migration contributing to burn wound healing. The polymeric nanofibers mimic collagen fibers present in extracellular matrix and their high porosity and surface area to volume ratio enable increased interaction and sustained release of therapeutics at the site of thermal injury. This review is an attempt to compile all recent advances in the use of polymer-based nanotherapeutics for burn wounds. The various natural and synthetic polymers used have been discussed comprehensively and approaches being employed have been reported. With immense research effort that is currently being invested in this field and development of proper characterization and regulatory framework, future progress in burn treatment is expected to occur. Moreover, appropriate preclinical and clinical research will provide evidence for the great potential that polymer-based nanotherapeutics hold in the management of burn wounds.
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Affiliation(s)
- Rewati Raman Ujjwal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
| | - Awesh Yadav
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
| | - Shourya Tripathi
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
| | - S T V Sai Krishna
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
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8
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Lazaridou M, Nanaki S, Zamboulis A, Papoulia C, Chrissafis K, Klonos PA, Kyritsis A, Vergkizi-Nikolakaki S, Kostoglou M, Bikiaris DN. Super absorbent chitosan-based hydrogel sponges as carriers for caspofungin antifungal drug. Int J Pharm 2021; 606:120925. [PMID: 34303816 DOI: 10.1016/j.ijpharm.2021.120925] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 12/21/2022]
Abstract
Novel chitosan copolymers (CS-g-SBMA) grafted with [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA) in various molar ratio 1.5:1, 5:1, 11.5:1 and 20:1, were synthesized in the present study. SBMA was selected as zwitterion molecule showing promising antibacterial properties. Grafted chitosan derivatives were fully characterized for their successful synthesis by NMR and FT-IR, for their crystallinity by XRD showing reduced crystallinity compared to CS alone. Furthermore, swelling studies were conducted with the grafted derivatives showing extensive swelling capacity (maximum degree of swelling up to 1800%) and water absorption was studied with differential scanning calorimetry and equilibrium water adsorption/desorption isotherms were analyzed. Caspofungin, a novel antifungal drug, was used to prepare a double-acting system, with both antibacterial and antifungal properties, proper for topical use. Drug loaded hydrogels were prepared with 10, 20 and 30 wt% drug content and the loaded hydrogels were fully characterized while antimicrobial studies showed enhanced properties. Caspofungin in vitro release showed an initial burst effect followed by a diffusion process while data analysis verified the initial burst release followed by a quasi Fickian diffusion-driven sustained release. Enhance antimicrobial properties was also observed in caspofungin-loaded hydrogels showing the successful fulfill of our scope; an amphiphilic system having great potential for the development of patches with inherent antimicrobial properties and prolonged antifungal properties.
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Affiliation(s)
- Maria Lazaridou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Stavroula Nanaki
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Alexandra Zamboulis
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Chrysanthi Papoulia
- Department of Physics, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece.
| | | | - Panagiotis A Klonos
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece; Department of Physics, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - Apostolos Kyritsis
- Department of Physics, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - Souzan Vergkizi-Nikolakaki
- Department of Microbiology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
| | - Margaritis Kostoglou
- Laboratory of Chemical and Environmental Technology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Macedonia, Greece.
| | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Nasalapure AV, Chalannavar RK, Kasai DR, Reddy KR, Raghu AV. Novel polymeric hydrogel composites: Synthesis, physicochemical, mechanical and biocompatible properties. NANO EXPRESS 2021. [DOI: 10.1088/2632-959x/ac11bf] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
In this research study, novel hydrogel composite films were constructed using different ratios of poly (vinyl alcohol) (PVA)/kappa-carrageenan (KC) (PVA90/KC10%, PVA80/KC20%, PVA70/KC30%, PVA60/KC40%) crosslinked with glutaraldehyde (0.025%) and investigated their physicochemical characteristics such as mechanical, thermal, morphological, swelling behaviour, and cell viability. SEM and FTIR revealed that surface morphology changed to heterogeneous and the presence of molecular interaction among the polymers. PVA90KC10 and PVA60KC40 exhibited smaller and larger pores on surface respectively. The change in the proportion of PVA and KC also triggered the tensile strength (Ts) of the film and the highest Ts observed were 21.60 MPa for PVA60KC40. Moreover, the thermal analysis showed three-phase degradation, and an increase in KC40 concentration results inversely proportional to a decrease in the rate of thermal degradation. Further, swelling and in-vitro biodegradation study confirmed the enhanced perseverance of water uptake for PVA60KC40 (286%) due to pores structure of the hydrogel film and PVA and KC alone degraded faster as compare to other films results suggested higher concentration of PVA90KC10 showed lower degradation rate and highest for PVA60KC40 about 6% and 22% respectively. Further, the cell viability was studied with MTT assay method by using NIH3T3 and HEK-293 cells for biocompatibility study revealed NIH3T3 cells were more biocompatible than HEK-293 and cell viability percent for PVA60KC40 showed the highest cell attachment about 99%. Overall corroborating data obtained from the study attested to the average swelling, appreciable mechanical characters, good interaction between molecules, and cell viability of the constructed PVA/KC hydrogel film, these all characters pave to be used as a potential template for biomedical applications such as tissue engineering and drug delivery.
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10
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Tan KX, Ng LLE, Loo SCJ. Formulation Development of a Food-Graded Curcumin-Loaded Medium Chain Triglycerides-Encapsulated Kappa Carrageenan (CUR-MCT-KC) Gel Bead Based Oral Delivery Formulation. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2783. [PMID: 34073859 PMCID: PMC8197192 DOI: 10.3390/ma14112783] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/15/2021] [Accepted: 05/17/2021] [Indexed: 11/17/2022]
Abstract
In recent years, curcumin has been a major research endeavor in food and biopharmaceutical industries owing to its miscellaneous health benefits. There is an increasing amount of research ongoing in the development of an ideal curcumin delivery system to resolve its limitations and further enhance its solubility, bioavailability and bioactivity. The emergence of food-graded materials and natural polymers has elicited new research interests into enhanced pharmaceutical delivery due to their unique properties as delivery carriers. The current study is to develop a natural and food-graded drug carrier with food-derived MCT oil and a seaweed-extracted polymer called k-carrageenan for oral delivery of curcumin with improved solubility, high gastric resistance, and high encapsulation of curcumin. The application of k-carrageenan as a structuring agent that gelatinizes o/w emulsion is rarely reported and there is so far no MCT-KC system established for the delivery of hydrophobic/lipophilic molecules. This article reports the synthesis and a series of in vitro bio-physicochemical studies to examine the performance of CUR-MCT-KC as an oral delivery system. The solubility of CUR was increased significantly using MCT with a good encapsulation efficiency of 73.98 ± 1.57% and a loading capacity of 1.32 ± 0.03 mg CUR/mL MCT. CUR was successfully loaded in MCT-KC, which was confirmed using FTIR and SEM with good storage and thermal stability. Dissolution study indicated that the solubility of CUR was enhanced two-fold using heated MCT oil as compared to naked or unformulated CUR. In vitro release study revealed that encapsulated CUR was protected from premature burst under simulated gastric environment and released drastically in simulated intestinal condition. The CUR release was active at intestinal pH with the cumulative release of >90% CUR after 5 h incubation, which is the desired outcome for CUR absorption under human intestinal conditions. A similar release profile was also obtained when CUR was replaced with beta-carotene molecules. Hence, the reported findings demonstrate the potencies of MCT-KC as a promising delivery carrier for hydrophobic candidates such as CUR.
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Affiliation(s)
- Kei-Xian Tan
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore;
- Esco Aster, Block 71, Ayer Rajah Crescent, Singapore 139951, Singapore
| | - Ling-Ling Evelyn Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore;
| | - Say Chye Joachim Loo
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore;
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
- Harvard T.H. Chan School of Public Health, Harvard University, 677 Huntington Ave, Boston, MA 02115, USA
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11
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One Step e-Beam Radiation Cross-Linking of Quaternary Hydrogels Dressings Based on Chitosan-Poly(Vinyl-Pyrrolidone)-Poly(Ethylene Glycol)-Poly(Acrylic Acid). Int J Mol Sci 2020; 21:ijms21239236. [PMID: 33287433 PMCID: PMC7731230 DOI: 10.3390/ijms21239236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 01/26/2023] Open
Abstract
We report on the successful preparation of wet dressings hydrogels based on Chitosan-Poly(N-Vinyl-Pyrrolidone)-Poly(ethylene glycol)-Poly(acrylic acid) and Poly(ethylene oxide) by e-beam cross-linking in weakly acidic media, to be used for rapid healing and pain release of infected skin wounds. The structure and compositions of hydrogels investigated according to sol-gel and swelling studies, network parameters, as well as FTIR and XPS analyses showed the efficient interaction of the hydrogel components upon irradiation, maintaining the bonding environment while the cross-linking degree increasing with the irradiation dose and the formation of a structure with the mesh size in the range 11–67 nm. Hydrogels with gel fraction above 85% and the best swelling properties in different pH solutions were obtained for hydrogels produced with 15 kGy. The hydrogels are stable in the simulated physiological condition of an infected wound and show appropriate moisture retention capability and the water vapor transmission rate up to 272.67 g m−2 day−1, to ensure fast healing. The hydrogels proved to have a significant loading capacity of ibuprofen (IBU), being able to incorporate a therapeutic dose for the treatment of severe pains. Simultaneously, IBU was released up to 25% in the first 2h, having a release maximum after 8 h.
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12
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Raina N, Rani R, Pahwa R, Gupta M. Biopolymers and treatment strategies for wound healing: an insight view. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1838518] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Neha Raina
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences & Research University, Delhi, India
| | - Radha Rani
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences & Research University, Delhi, India
| | - Rakesh Pahwa
- Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra, India
| | - Madhu Gupta
- Department of Pharmaceutics, Delhi Pharmaceutical Sciences & Research University, Delhi, India
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13
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Wu Y, Cao D, Bai X, Liu H, Hao H, Xing J, Dong J, Liao L. Effects of Non‐Ionic Surfactants on the Rheological, Electrical and Electrochemical Properties of Highly Loaded Silicon Suspension Electrodes for Semi‐Solid Flow Batteries. ChemElectroChem 2020. [DOI: 10.1002/celc.202000873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuanyuan Wu
- School of ScienceChina University of Geosciences Beijing 100083 PR China
| | - Defu Cao
- School of Materials Science and TechnologyChina University of Geosciences Beijing 100083 PR China
| | - Xiaojie Bai
- School of ScienceChina University of Geosciences Beijing 100083 PR China
| | - Hao Liu
- School of ScienceChina University of Geosciences Beijing 100083 PR China
- Key Laboratory for Photonic and Electronic Bandgap MaterialsMinistry of EducationSchool of Physics and Electronic EngineeringHarbin Normal University Harbin 150025 PR China
| | - Huiying Hao
- School of ScienceChina University of Geosciences Beijing 100083 PR China
| | - Jie Xing
- School of ScienceChina University of Geosciences Beijing 100083 PR China
| | - Jingjing Dong
- School of ScienceChina University of Geosciences Beijing 100083 PR China
| | - Libing Liao
- School of Materials Science and TechnologyChina University of Geosciences Beijing 100083 PR China
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14
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Kinetics and controlled release of lidocaine from novel carrageenan and alginate-based blend hydrogels. Int J Biol Macromol 2020; 147:67-78. [PMID: 31926227 DOI: 10.1016/j.ijbiomac.2020.01.073] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 12/30/2019] [Accepted: 01/07/2020] [Indexed: 12/13/2022]
Abstract
The controlled release of drug from drug carrier has been a point of concern for the researchers to ensure the bioavailability of drug with reduced side effects. The formulation in this study is based upon biopolymers; carrageenan (CG), sodium alginate (SA) and various molecular weights of polyethylene glycol (PEG), cross-linked with (3-Aminopropyl)triethoxysilane, APTES for the sustained release of model drug (lidocaine). The physicochemical properties of the formulated hydrogel blends include bonding pattern (using Fourier Transform Infra-Red Spectroscopy (FTIR), Thermogravimetric analysis (TGA), X-ray diffraction (XRD), swelling study, antimicrobial activity and morphology of hydrogel films was analyzed by scanning electron microscopy (SEM). The as-prepared hydrogels show an improved cell compatibility against 3T3 cell line as well as cell proliferation and kinetics of drug release showed that these hydrogels are potential for controlled release of lidocaine, a numbing agent. GAP 60 exhibited maximum swelling percent (910%) and was employed to load the drug. By using in vitro model, the drug release was studied in PBS solution. Non-Fickian and other kinetic models (Zero order, Higuchi, Hixson, Korsmeyer Peppas and Baker-Lonsdale) for diffusion were followed in results. The improved properties showed that the formulated hydrogels can easily be used for the sustain drug release studies.
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15
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Chitosan-based hydrogels loading with thyme oil cyclodextrin inclusion compounds: From preparation to characterization. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109303] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Moradi S, Barati A, Salehi E, Tonelli AE, Hamedi H. Preparation and characterization of chitosan based hydrogels containing cyclodextrin inclusion compounds or nanoemulsions of thyme oil. POLYM INT 2019. [DOI: 10.1002/pi.5899] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sara Moradi
- Department of Chemical Engineering, Faculty of EngineeringArak University Arak Markazi Iran
| | - Abolfazl Barati
- Department of Chemical Engineering, Faculty of EngineeringArak University Arak Markazi Iran
| | - Ehsan Salehi
- Department of Chemical Engineering, Faculty of EngineeringArak University Arak Markazi Iran
| | - Alan E Tonelli
- Fiber and Polymer Science Program, Textile Engineering Chemistry and Science Department, College of TextilesNorth Carolina State University Raleigh NC USA
| | - Hamid Hamedi
- Fiber and Polymer Science Program, Textile Engineering Chemistry and Science Department, College of TextilesNorth Carolina State University Raleigh NC USA
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Al Harthi S, Alavi SE, Radwan MA, El Khatib MM, AlSarra IA. Nasal delivery of donepezil HCl-loaded hydrogels for the treatment of Alzheimer's disease. Sci Rep 2019; 9:9563. [PMID: 31266990 PMCID: PMC6606601 DOI: 10.1038/s41598-019-46032-y] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 06/17/2019] [Indexed: 11/29/2022] Open
Abstract
This study aims to prepare, characterize and evaluate the pharmacokinetics of liposomal donepezil HCl (LDH) dispersed into thiolated chitosan hydrogel (TCH) in rabbits. Various hydrogels including TCH were prepared, and after characterization, TCH was selected for subsequent evaluations, due to the promising results. TCH was then incorporated with LDH prepared by reverse phase evaporation method. The hydrogel was characterized using scanning electron microscope, dialysis membrane technique, and ultra-performance liquid chromatography methods. The optimized resultant was then evaluated in terms of pharmacokinetics in an in vivo environment. The mean size of LDH and drug entrapment efficiency were 438.7 ± 28.3 nm and 62.5% ± 0.6, respectively. The controlled drug release pattern results showed that the half-life of the loaded drug was approximately 3.5 h. Liposomal hydrogel and free liposomes were more stable at 4 °C compared to those in 20 °C. The pharmacokinetics study in the rabbit showed that the optimized hydrogel increased the mean peak drug concentration and area under the curve by 46% and 39%, respectively, through nasal route compared to the oral tablets of DH. Moreover, intranasal delivery of DH through liposomal hydrogel increased the mean brain content of the drug by 107% compared to the oral DH tablets. The results suggested that liposomes dispersed into TCH is a promising device for the nasal delivery of DH and can be considered for the treatment of Alzheimer's disease.
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Affiliation(s)
- Sitah Al Harthi
- Department of Pharmaceutical Science, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Department of Pharmaceutical Science, College of Pharmacy, Shaqra University, Riyadh, Saudi Arabia
- School of Pharmacy, The University of Queensland, Woolloongabba, 4102, Australia
| | - Seyed Ebrahim Alavi
- School of Pharmacy, The University of Queensland, Woolloongabba, 4102, Australia
| | - Mahasen Ali Radwan
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, Egyptian Russian University, Bader City, Egypt
| | - Mona Mohamed El Khatib
- Department of Pharmaceutics, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
- Department of Pharmaceutics, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Ibrahim Abdullah AlSarra
- Department of Pharmaceutical Science, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
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Alboofetileh M, Rezaei M, Tabarsa M, You S, Mariatti F, Cravotto G. Subcritical water extraction as an efficient technique to isolate biologically-active fucoidans from Nizamuddinia zanardinii. Int J Biol Macromol 2019; 128:244-253. [PMID: 30684576 DOI: 10.1016/j.ijbiomac.2019.01.119] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/06/2019] [Accepted: 01/18/2019] [Indexed: 12/15/2022]
Abstract
A sulfated polysaccharide (fucoidan) has been isolated from Nizamuddinia zanardinii using subcritical water extraction method (SCWE), and extraction conditions were optimised using the response surface methodology. The optimum extraction conditions were found to be: extraction time of 29 min, extraction temperature of 150 °C, and raw material-to-water ratio of 21 g/mL. The fucoidan yield under these optimum conditions was 25.98%, which was considerably higher than that of conventional solvent extraction (5.2%). Extraction time and temperature were the extraction variables that most significantly affected fucoidan yield. Chemical and monosaccharide composition, molecular weight, and the antioxidant, anticancer and immunomodulatory activities of the extract have also been investigated. The monosaccharide composition of fucoidan included fucose (34.13%), mannose (30.70%), galactose (23.19%), xylose (9.35%) and glucose (2.65%). The average molecular weight of the extracted fucoidan was 694 kDa. Antioxidant results revealed that SCWE-extracted fucoidan had appreciable ABTS radical scavenging (70.35%) and reducing power (0.182 Abs). The anticancer activity of fucoidan ranged from 24.60 to 49.46% for HeLa cells and from 23.95 to 46.78% for HepG2 cells. The NO production of RAW264.7 cells was observed to be dose-dependent, while maximum NO production was found to be 34.82 μmol at a 50 μg/mL fucoidan concentration.
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Affiliation(s)
- Mehdi Alboofetileh
- Department of Seafood Processing, Faculty of Marine Sciences, Tarbiat Modares University, P.O.Box 46414-356, Noor, Iran
| | - Masoud Rezaei
- Department of Seafood Processing, Faculty of Marine Sciences, Tarbiat Modares University, P.O.Box 46414-356, Noor, Iran.
| | - Mehdi Tabarsa
- Department of Seafood Processing, Faculty of Marine Sciences, Tarbiat Modares University, P.O.Box 46414-356, Noor, Iran.
| | - SangGuan You
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon 25457, Republic of Korea
| | - Francesco Mariatti
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
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Wang Y, Yuan C, Liu Y, Xu D, Cui B. The influence of a hydroxypropyl-beta-cyclodextrin composite on the gelation of kappa-carrageenan. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.12.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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20
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Rasool A, Ata S, Islam A, Khan RU. Fabrication of novel carrageenan based stimuli responsive injectable hydrogels for controlled release of cephradine. RSC Adv 2019; 9:12282-12290. [PMID: 35515844 PMCID: PMC9063494 DOI: 10.1039/c9ra02130b] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 04/08/2019] [Indexed: 11/21/2022] Open
Abstract
Kappa carrageenan was used to prepare hydrogels having novel compositions with poly(vinyl alcohol) (PVA) and a crosslinker (3-aminopropyl)triethoxysilane (APTES). FTIR was used to confirm the structure and composition of hydrogels. The swelling behavior of hydrogels was studied under different conditions of pH and electrolytic aqueous media. The most efficient swelling result (200%) was observed by the sample containing a low fraction of crosslinker. It also showed different swelling responses in different pH solutions that made it suitable for drug delivery. Thermogravimetric analysis (TGA) illustrated that with the increase in crosslinker amount, the stability of hydrogel was increased. The biodegradation analysis of the hydrogels exhibited the break down by various enzymes into small chain polysaccharides that further broke down in the metabolic pathways. It was revealed that all the hydrogel samples showed strong antibacterial activity against S. aureus and a little against E. coli. Cephradine was used as a model drug and its in vitro release was studied in simulated intestinal fluids (SIF). This release account of the cephradine demonstrated that the release of the drug increased as the time and pH increased, reaching its maximum amount of 85.5% after 7.5 h.
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Affiliation(s)
- Atta Rasool
- Institute of Chemistry, University of the Punjab P. O. Box, 54590 Lahore Pakistan +92-300-9477-89
- Department of Polymer Engineering and Technology, University of the Punjab P. O. Box, 54590 Lahore Pakistan +92-300-6686-506
| | - Sadia Ata
- Institute of Chemistry, University of the Punjab P. O. Box, 54590 Lahore Pakistan +92-300-9477-89
| | - Atif Islam
- Department of Polymer Engineering and Technology, University of the Punjab P. O. Box, 54590 Lahore Pakistan +92-300-6686-506
| | - Rafi Ullah Khan
- Department of Polymer Engineering and Technology, University of the Punjab P. O. Box, 54590 Lahore Pakistan +92-300-6686-506
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Valle H, Palao-Suay R, Aguilar MR, Román JS, Becerra J, Rivas B, Mangalaraja RV. Nanoparticles of 4,7-dichloro-2-quinolinemethylacrylate-based copolymers and their potential cytotoxic activity on human breast carcinoma cells. J Appl Polym Sci 2019. [DOI: 10.1002/app.47545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hernán Valle
- Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering; University of Concepcion; Concepcion 4070409 Chile
| | - Raquel Palao-Suay
- Group of Biomaterials; Institute of Polymer Science and Technology, ICTP-CSIC, C/Juan de la Cierva 3; Madrid 28006 Spain
| | - María Rosa Aguilar
- Group of Biomaterials; Institute of Polymer Science and Technology, ICTP-CSIC, C/Juan de la Cierva 3; Madrid 28006 Spain
| | - Julio San Román
- Group of Biomaterials; Institute of Polymer Science and Technology, ICTP-CSIC, C/Juan de la Cierva 3; Madrid 28006 Spain
| | - José Becerra
- Laboratorio de Química de Productos Naturales, Facultad de Ciencias Naturales y Oceanográficas; Universidad de Concepción; Concepcion 4089100 Chile
| | - Bernabé Rivas
- Polymer Department, Faculty of Chemistry; University of Concepción; Concepcion 4089100 Chile
| | - Ramalinga Viswanathan Mangalaraja
- Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering; University of Concepcion; Concepcion 4070409 Chile
- Technological Development Unit (UDT); University of Concepcion, Coronel Industrial Park; Coronel Chile
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Kumar S, Marrero-Berrios I, Kabat M, Berthiaume F. Recent Advances in the Use of Algal Polysaccharides for Skin Wound Healing. Curr Pharm Des 2019; 25:1236-1248. [PMID: 31109271 PMCID: PMC7746437 DOI: 10.2174/1381612825666190521120051] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/30/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Chronic skin wounds and pressure ulcers represent major health care problems in diabetic individuals, as well as patients who suffered a spinal cord injury. Current treatment methods are only partially effective and such wounds exhibit a high recurrence rate. Open wounds are at high risk of invasive wound infections, which can lead to amputation and further disability. An interdisciplinary approach is needed to develop new and more effective therapies. METHODS The purpose of this work is to review recent studies focusing on the use of algal polysaccharides in commercially available as well as experimental wound dressings. Studies that discuss wound dressings based on algal polysaccharides, some of which also contain growth factors and even living cells, were identified and included in this review. RESULTS AND CONCLUSION Algal polysaccharides possess mechanical and physical properties, along with excellent biocompatibility and biodegradability that make them suitable for a variety of applications as wound dressings. Furthermore, algal polysaccharides have been used for a dual purpose, namely as wound covering, but also as a vehicle for drug delivery to the wound site.
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Affiliation(s)
| | | | - Maciej Kabat
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, USA
| | - Francois Berthiaume
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, USA
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Alboofetileh M, Rezaei M, Tabarsa M, You S. Ultrasound‐assisted extraction of sulfated polysaccharide from
Nizamuddinia zanardinii
: Process optimization, structural characterization, and biological properties. J FOOD PROCESS ENG 2018. [DOI: 10.1111/jfpe.12979] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Mehdi Alboofetileh
- Department of Seafood Processing, Faculty of Marine SciencesTarbiat Modares University Noor Iran
| | - Masoud Rezaei
- Department of Seafood Processing, Faculty of Marine SciencesTarbiat Modares University Noor Iran
| | - Mehdi Tabarsa
- Department of Seafood Processing, Faculty of Marine SciencesTarbiat Modares University Noor Iran
| | - SangGuan You
- Department of Marine Food Science and TechnologyGangneung‐Wonju National University Gangneung Gangwon Republic of Korea
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24
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Khanum H, Ullah K, Murtaza G, Khan SA. Fabrication and in vitro characterization of HPMC-g-poly(AMPS) hydrogels loaded with loxoprofen sodium. Int J Biol Macromol 2018; 120:1624-1631. [PMID: 30287359 DOI: 10.1016/j.ijbiomac.2018.09.184] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 08/30/2018] [Accepted: 09/28/2018] [Indexed: 11/30/2022]
Abstract
The aim of this study was to prepare hydroxypropyl-methyl cellulose (HPMC)-K15 based hydrogels via free radical polymerization using 2‑acrylamido-2‑methyl propane sulphonic acid (AMPS) as a monomer and N,N'-methylene bisacrylamide (MBAAm) as a crosslinker. Loxoprofen sodium was chosen as a model drug and successfully loaded in hydrogel discs. Sol-gel, porosity, loading efficiency, and the in vitro drug release analysis were carried out to evaluate its drug delivery potential. HMPC-g-poly(AMPS) hydrogels were characterized by using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM) approaches. Maximum swelling and drug release were observed at pH 7.4. Kinetic modelling suggested that drug release followed first-order kinetics with the non-Fickian mechanism. FTIR and DSC confirmed the formation of new hydrogels. SEM micrographs confirmed uneven, rough, and partially porous type of surface. These results suggested that HMPC-g-poly(AMPS) hydrogels can be a prospective pH-responsive carrier for delivery of water-soluble drugs, such as loxoprofen sodium.
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Affiliation(s)
- Hira Khanum
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Kaleem Ullah
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Ghulam Murtaza
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, 60000, Pakistan.
| | - Shujaat Ali Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan.
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25
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Singh B, Kanwar JS, Kumari P. Modification of Dietary Fiber Psyllium with Poly(vinyl pyrrolidone) through Network Formation for Use in Slow Drug Delivery Application. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s156009041803017x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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26
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Yegappan R, Selvaprithiviraj V, Amirthalingam S, Jayakumar R. Carrageenan based hydrogels for drug delivery, tissue engineering and wound healing. Carbohydr Polym 2018; 198:385-400. [PMID: 30093014 DOI: 10.1016/j.carbpol.2018.06.086] [Citation(s) in RCA: 210] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
Abstract
Carrageenan is a class of naturally occurring sulphated polysaccharides, which is currently a promising candidate in tissue engineering and regenerative medicine as it resemblances native glycosaminoglycans. From pharmaceutical drug formulations to tissue engineered scaffolds, carrageenan has broad range of applications. Here we provide an overview of developing various forms of carrageenan based hydrogels. We focus on how these fabrication processes has an effect on physiochemical properties of the hydrogel. We outline the application of these hydrogels not only pertaining to sustained drug release but also their application in bone and cartilage tissue engineering as well as in wound healing and antimicrobial formulations. Administration of these hydrogels through various routes for drug delivery applications has been critically reviewed. Finally, we conclude by summarizing the current and future outlook that promotes the seaweed-derived polysaccharide as versatile, promising biomaterial for a variety of bioengineering applications.
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Affiliation(s)
- Ramanathan Yegappan
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Vignesh Selvaprithiviraj
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Sivashanmugam Amirthalingam
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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Hemostatic granules and dressing prepared from formulations of carboxymethyl cellulose, kappa-carrageenan and polyethylene oxide crosslinked by gamma radiation. Radiat Phys Chem Oxf Engl 1993 2018. [DOI: 10.1016/j.radphyschem.2017.08.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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Devi N, Dutta J. Preparation and characterization of chitosan-bentonite nanocomposite films for wound healing application. Int J Biol Macromol 2017; 104:1897-1904. [DOI: 10.1016/j.ijbiomac.2017.02.080] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/07/2017] [Accepted: 02/22/2017] [Indexed: 11/25/2022]
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29
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Omar SM, Maziad NA, El-Tantawy NM. Design of Isoniazid Smart Nanogel by Gamma Radiation-Induced Template Polymerization for Biomedical Application. Pharm Res 2017. [PMID: 28620888 DOI: 10.1007/s11095-017-2196-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE Preparation of Isoniazid (INH) loaded nanogel particles using gamma radiation as safe, simple, cheap and reproducible technique for promoting mycobacterial killing in a lower-dose system aiming in developing of drug resistance. METHODS Polymeric pH-sensitive nanogels were prepared by gamma radiation-induced polymerization of Acrylic acid (AAc) or Itaconic acid (IA), in aqueous solution of polyvinylpyrrolidone (PVP), as template polymer. The prepared nanogels were utilized for encapsulation of INH. 31X22 factorial design was employed for optimization and exploring the effect of radiation dose (X1) (30-50kGy), ratio of PVP: acid (X2) (50:50-30:70) and type of acid (X3) on the prepared nanogel characterization RESULTS: The optimized levels of X1, X2 and X3 were (50 KGy, 30:70 and Itaconic acid, respectively), with a desirability of 0.959. In-vitro INH release rate from the prepared nanogels decreased with increasing gamma radiation doses, with the predominance of the diffusion mechanism for drug release pattern. In addition, it was perceived that the minimum inhibitory concentration (MIC) of INH loaded PVP/PIA nanogels on Mycobacteria Tuberculosis was 8 folds lower than that of INH solution. CONCLUSION The prospective of PVP-K90/PIA was recommended as a smart candidate for delivery of INH with promising achievements against tuberculosis than free drug. Graphical abstract Mechanism of formation and loading of Isoniazid PVP/PIA nanogel.
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Affiliation(s)
- Samia M Omar
- Department of pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
- Department of Pharmaceutics, Faculty of Pharmacy, Princess Nora Bint Abdul Rahman University, Riyadh, Saudi Arabia.
| | - Nabila A Maziad
- Department of Polymer Chemistry, National Center for Radiation Research and Technology, Atomic Energy Authority, Nasr City, Cairo, Egypt
| | - Nourhan M El-Tantawy
- Department of pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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30
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Chaudhari AA, Vig K, Baganizi DR, Sahu R, Dixit S, Dennis V, Singh SR, Pillai SR. Future Prospects for Scaffolding Methods and Biomaterials in Skin Tissue Engineering: A Review. Int J Mol Sci 2016; 17:E1974. [PMID: 27898014 PMCID: PMC5187774 DOI: 10.3390/ijms17121974] [Citation(s) in RCA: 288] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 11/21/2016] [Accepted: 11/22/2016] [Indexed: 01/17/2023] Open
Abstract
Over centuries, the field of regenerative skin tissue engineering has had several advancements to facilitate faster wound healing and thereby restoration of skin. Skin tissue regeneration is mainly based on the use of suitable scaffold matrices. There are several scaffold types, such as porous, fibrous, microsphere, hydrogel, composite and acellular, etc., with discrete advantages and disadvantages. These scaffolds are either made up of highly biocompatible natural biomaterials, such as collagen, chitosan, etc., or synthetic materials, such as polycaprolactone (PCL), and poly-ethylene-glycol (PEG), etc. Composite scaffolds, which are a combination of natural or synthetic biomaterials, are highly biocompatible with improved tensile strength for effective skin tissue regeneration. Appropriate knowledge of the properties, advantages and disadvantages of various biomaterials and scaffolds will accelerate the production of suitable scaffolds for skin tissue regeneration applications. At the same time, emphasis on some of the leading challenges in the field of skin tissue engineering, such as cell interaction with scaffolds, faster cellular proliferation/differentiation, and vascularization of engineered tissues, is inevitable. In this review, we discuss various types of scaffolding approaches and biomaterials used in the field of skin tissue engineering and more importantly their future prospects in skin tissue regeneration efforts.
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Affiliation(s)
- Atul A Chaudhari
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, AL 36104, USA.
| | - Komal Vig
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, AL 36104, USA.
| | | | - Rajnish Sahu
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, AL 36104, USA.
| | - Saurabh Dixit
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, AL 36104, USA.
| | - Vida Dennis
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, AL 36104, USA.
| | - Shree Ram Singh
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, AL 36104, USA.
| | - Shreekumar R Pillai
- Center for Nanobiotechnology Research, Alabama State University, Montgomery, AL 36104, USA.
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Bakrudeen HB, Sudarvizhi C, Reddy B. Starch nanocrystals based hydrogel: Construction, characterizations and transdermal application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:880-889. [DOI: 10.1016/j.msec.2016.07.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 06/02/2016] [Accepted: 07/07/2016] [Indexed: 10/21/2022]
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Mohamad N, Buang F, Mat Lazim A, Ahmad N, Martin C, Mohd Amin MCI. Characterization and biocompatibility evaluation of bacterial cellulose-based wound dressing hydrogel: effect of electron beam irradiation doses and concentration of acrylic acid. J Biomed Mater Res B Appl Biomater 2016; 105:2553-2564. [DOI: 10.1002/jbm.b.33776] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 08/12/2016] [Accepted: 08/14/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Najwa Mohamad
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz; 50300 Kuala Lumpur Malaysia
| | - Fhataheyah Buang
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz; 50300 Kuala Lumpur Malaysia
| | - Azwan Mat Lazim
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; Bangi 43600 Selangor Malaysia
| | - Naveed Ahmad
- Department of Pharmacy; Forman Christian College (A Chattered University); Lahore 54600 Pakistan
| | - Claire Martin
- School of Pharmacy, Faculty of Science and Engineering; University of Wolverhampton, Wulfruna Street; Wolverhampton WV1 1LY UK
| | - Mohd Cairul Iqbal Mohd Amin
- Centre for Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz; 50300 Kuala Lumpur Malaysia
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Jiang Q, Zhou W, Wang J, Tang R, Zhang D, Wang X. Hypromellose succinate-crosslinked chitosan hydrogel films for potential wound dressing. Int J Biol Macromol 2016; 91:85-91. [PMID: 27222285 DOI: 10.1016/j.ijbiomac.2016.05.077] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 05/18/2016] [Accepted: 05/20/2016] [Indexed: 11/15/2022]
Abstract
The objective of this study was to develop novel hydrogel films based on carboxyl-modified hypromellose-crosslinked chitosan for potential wound dressing. Hypromellose (HPMC) was grafted with succinic acid to yield hypromellose succinate (HPMCS), and then the reinforced hydrogel films of HPMCS-crosslinked chitosan (HPMCS-CS) were prepared through amide bond formation using 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) and N- hydroxysuccinimide (NHS) as a catalyst. Compared to that of blend film, mechanical properties of HPMCS-CS hydrogel films were significantly enhanced both in dry and swollen state. To assess the applicability of HPMCS-CS hydrogel films as wound dressing, the swelling behavior, water vapor transmission rate (WVTR), oxygen permeability, biocompatibility (cytotoxicity and hemolysis), in vitro drug release and bactericidal properties were analyzed. The results indicated that HPMCS-CS hydrogel films with good biocompatibility possess high swelling ratio, proper WVTR, and oxygen permeability, which might accelerate tissue regeneration. Meanwhile, gentamycin sulfate release from drug-loaded HPMCS-CS hydrogel films were sustained, which would help to protect wound from infection.
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Affiliation(s)
- Qiong Jiang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province, 230601, PR China; College of Chemistry and Bio-Engineering, Yichun University, Yichun 336000, PR China
| | - Wei Zhou
- School of Pharmaceutical Science, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province, 214122, PR China
| | - Jun Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province, 230601, PR China
| | - Rupei Tang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province, 230601, PR China; School of Pharmaceutical Science, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province, 214122, PR China.
| | - Di Zhang
- School of Pharmaceutical Science, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province, 214122, PR China
| | - Xin Wang
- Engineering Research Center for Biomedical Materials, School of Life Science, Anhui University, 111 Jiulong Road, Hefei, Anhui Province, 230601, PR China
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Wang X, Zhang D, Wang J, Tang R, Wei B, Jiang Q. Succinyl pullulan-crosslinked carboxymethyl chitosan sponges for potential wound dressing. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1182912] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Venkatesan J, Anil S, Kim SK, Shim MS. Seaweed Polysaccharide-Based Nanoparticles: Preparation and Applications for Drug Delivery. Polymers (Basel) 2016; 8:E30. [PMID: 30979124 PMCID: PMC6432598 DOI: 10.3390/polym8020030] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/04/2016] [Accepted: 01/11/2016] [Indexed: 01/17/2023] Open
Abstract
In recent years, there have been major advances and increasing amounts of research on the utilization of natural polymeric materials as drug delivery vehicles due to their biocompatibility and biodegradability. Seaweed polysaccharides are abundant resources and have been extensively studied for several biological, biomedical, and functional food applications. The exploration of seaweed polysaccharides for drug delivery applications is still in its infancy. Alginate, carrageenan, fucoidan, ulvan, and laminarin are polysaccharides commonly isolated from seaweed. These natural polymers can be converted into nanoparticles (NPs) by different types of methods, such as ionic gelation, emulsion, and polyelectrolyte complexing. Ionic gelation and polyelectrolyte complexing are commonly employed by adding cationic molecules to these anionic polymers to produce NPs of a desired shape, size, and charge. In the present review, we have discussed the preparation of seaweed polysaccharide-based NPs using different types of methods as well as their usage as carriers for the delivery of various therapeutic molecules (e.g., proteins, peptides, anti-cancer drugs, and antibiotics). Seaweed polysaccharide-based NPs exhibit suitable particle size, high drug encapsulation, and sustained drug release with high biocompatibility, thereby demonstrating their high potential for safe and efficient drug delivery.
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Affiliation(s)
| | - Sukumaran Anil
- Department of Preventive Dental Sciences, College of Dentistry, Jazan University, P.O Box 114, Jazan 45142, Saudi Arabia.
| | - Se-Kwon Kim
- Marine Bioprocess Research Center and Department of Marine-bio Convergence Science, Pukyong National University, Busan 608-737, Korea.
| | - Min Suk Shim
- Division of Bioengineering, Incheon National University, Incheon 406-772, Korea.
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Nickel nanoparticles with hcp structure: Preparation, deposition as thin films and application as electrochemical sensor. J Colloid Interface Sci 2016; 468:34-41. [PMID: 26821149 DOI: 10.1016/j.jcis.2016.01.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 01/14/2016] [Accepted: 01/18/2016] [Indexed: 11/22/2022]
Abstract
Hexagonal close packed (hcp) nickel nanoparticles stabilized by polyvinylpyrrolidone (PVP) were synthesized through the thermal treatment of face centered cubic (fcc) nickel nanoparticles. Controlling both the temperature of the heat treatment and the amount of PVP was possible the control of the hcp/fcc rate in the samples, where the higher Ni/PVP ratio produces only the hcp-nickel phase (average size of 8.9 nm) highly stable in air. The crystalline structure, the presence of PVP, the size of the nanoparticles and the stability of the hcp-nickel were confirmed using X-ray diffractometry, Fourier transform infrared spectroscopy, transmission electron microscopy, Raman spectroscopy, scanning electron microscopy and thermogravimetric analysis. Thin films of hcp and fcc nickel nanoparticles were prepared through a biphasic system and deposited over indium-doped tin oxide (ITO) substrates, which were electrochemically characterized and applied as glycerol amperometric sensors in NaOH medium. Parameters as the number of cycles applied and the scan rate were evaluated and indicate that hcp nickel nanoparticles are more reactive to form Ni(OH)2 and lead to more electroactive Ni(OH)2 structure. The hcp nickel nanoparticles-modified electrode showed the best sensitivity (0.258 μA L μmol(-1)) and detection limit (2.4 μmol L(-1)) toward glycerol.
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37
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Sterculia Gum-Based Hydrogels for Drug Delivery Applications. POLYMERIC HYDROGELS AS SMART BIOMATERIALS 2016. [DOI: 10.1007/978-3-319-25322-0_5] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Atta S, Khaliq S, Islam A, Javeria I, Jamil T, Athar MM, Shafiq MI, Ghaffar A. Injectable biopolymer based hydrogels for drug delivery applications. Int J Biol Macromol 2015; 80:240-5. [PMID: 26118484 DOI: 10.1016/j.ijbiomac.2015.06.044] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 06/22/2015] [Accepted: 06/24/2015] [Indexed: 10/23/2022]
Abstract
Biopolymer based pH-sensitive hydrogels were prepared using chitosan (CS) with polyethylene glycol (PEG) of different molecular weights in the presence of silane crosslinker. The incorporated components remain undissolved in different swelling media as they are connected by siloxane linkage which was confirmed by Fourier transform infrared spectroscopy. The swelling in water was enhanced by the addition of higher molecular weight PEG. The swelling behaviour of the hydrogels against pH showed high swelling in acidic and basic pH, whereas, low swelling was examined at pH 6 and 7. This characteristic pH responsive behaviour at neutral pH made them suitable for injectable controlled drug delivery. The controlled release analysis of Cefixime (CFX) (model drug) loaded CS/PEG hydrogel exhibited that the entire drug was released in 30 min in simulated gastric fluid (SGF) while in simulated intestinal fluid (SIF), 85% of drug was released in controlled manner within 80 min. This inferred that the developed hydrogels can be an attractive biomaterial for injectable drug delivery with physiological pH and other biomedical applications.
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Affiliation(s)
- Sadia Atta
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Shaista Khaliq
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan; Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam campus, Lahore, Pakistan
| | - Atif Islam
- Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam campus, Lahore, Pakistan.
| | - Irtaza Javeria
- Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam campus, Lahore, Pakistan; Department of Chemistry, University of Engineering and Technology, Lahore, Pakistan
| | - Tahir Jamil
- Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam campus, Lahore, Pakistan
| | | | | | - Abdul Ghaffar
- Department of Chemistry, University of Engineering and Technology, Lahore, Pakistan
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Abdel Aziz MS, Naguib HF, Saad GR. Nanocomposites Based on Chitosan-Graft-Poly(N-Vinyl-2-Pyrrolidone): Synthesis, Characterization, and Biological Activity. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2014.996707] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Venkatesan J, Lowe B, Anil S, Manivasagan P, Kheraif AAA, Kang KH, Kim SK. Seaweed polysaccharides and their potential biomedical applications. STARCH-STARKE 2015. [DOI: 10.1002/star.201400127] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Baboucarr Lowe
- Department of Marine Bio Convergence Science; Pukyong National University; Busan South Korea
| | - Sukumaran Anil
- Dental Biomaterials Research, Department of Periodontics and Community Dentistry; College of Dentistry; King Saud University; Riyadh Saudi Arabia
| | | | - Abdulaziz A Al Kheraif
- Dental Biomaterials Research, Dental Health Department; College of Applied Medical Sciences; King Saud University; Riyadh Saudi Arabia
| | - Kyong-Hwa Kang
- Marine Bioprocess Research Center; Pukyong National University; Busan South Korea
| | - Se-Kwon Kim
- Marine Bioprocess Research Center; Pukyong National University; Busan South Korea
- Department of Marine Bio Convergence Science; Pukyong National University; Busan South Korea
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41
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Zhang Y, Ye L, Cui M, Yang B, Li J, Sun H, Yao F. Physically crosslinked poly(vinyl alcohol)–carrageenan composite hydrogels: pore structure stability and cell adhesive ability. RSC Adv 2015. [DOI: 10.1039/c5ra11331h] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Poly(vinyl alcohol) (PVA)–carrageenan (CAR) composite hydrogels can reduce pore collapse during lyophilization and enhance cell adhesion in comparison to pure PVA hydrogels.
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Affiliation(s)
- Yabin Zhang
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering of Ministry of Education
- Tianjin University
- Tianjin 300072
- China
| | - Lei Ye
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering of Ministry of Education
- Tianjin University
- Tianjin 300072
- China
| | - Man Cui
- Department of Basic Medical Sciences
- North China University of Science and Technology
- Tangshan 063000
- China
| | - Boguang Yang
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering of Ministry of Education
- Tianjin University
- Tianjin 300072
- China
| | - Junjie Li
- Department of Advanced Interdisciplinary Studies
- Institute of Basic Medical Sciences and Tissue Engineering Research Center
- Academy of Military Medical Science
- Beijing 100850
- China
| | - Hong Sun
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering of Ministry of Education
- Tianjin University
- Tianjin 300072
- China
| | - Fanglian Yao
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering of Ministry of Education
- Tianjin University
- Tianjin 300072
- China
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42
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Rennukka M, Sipaut CS, Amirul AA. Synthesis of poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/chitosan/silver nanocomposite material with enhanced antimicrobial activity. Biotechnol Prog 2014; 30:1469-79. [DOI: 10.1002/btpr.1986] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 08/21/2014] [Indexed: 11/06/2022]
Affiliation(s)
- M. Rennukka
- School of Biological Sciences; Universiti Sains Malaysia; 11800 Penang Malaysia
| | - C. S. Sipaut
- School of Engineering and Information Technology; Universiti Malaysia Sabah; 88999 Kota Kinabalu Sabah Malaysia
| | - A. A. Amirul
- School of Biological Sciences; Universiti Sains Malaysia; 11800 Penang Malaysia
- Malaysian Inst. of Pharmaceuticals and Nutraceuticals, MOSTI; 11900 Bayan Lepas Penang Malaysia
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Zaveri T, Hayes JE, Ziegler GR. Release of tenofovir from carrageenan-based vaginal suppositories. Pharmaceutics 2014; 6:366-77. [PMID: 24999606 PMCID: PMC4190525 DOI: 10.3390/pharmaceutics6030366] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/13/2014] [Accepted: 06/25/2014] [Indexed: 12/31/2022] Open
Abstract
Microbicides are an active area of research for HIV prevention, being developed as a woman-initiated method of prevention during unprotected coitus. Along with safety and efficacy, assessing and improving compliance is a major area of research in microbicide development. We have produced microbicide prototypes in the form of semisoft vaginal suppositories prepared from carrageenan and conducted both qualitative and quantitative studies using these prototypes to determine the physical properties that drive acceptability and possibly adherence. In order to ensure that the suppositories function as effective drug delivery vehicles, we have conducted in vitro dissolution studies in water, vaginal simulant fluid (VSF) and semen simulant fluid (SSF) with suppositories loaded with the antiretroviral drug, tenofovir (TFV). TFV was released via diffusion and matrix erosion in water or by diffusion out of the matrix in VSF and SSF. Diffusion studies were conducted in two different volumes of VSF and SSF. The volume of VSF/SSF into which TFV diffused and the size of the suppositories determined the rate of diffusion from the suppositories. About 45%–50% of the encapsulated TFV diffused out of the suppositories within the first two hours, irrespective of suppository size, diffusion medium (VSF/SSF) and the volume of medium. Prior work indicates that a short waiting period between insertion and coitus is highly desired by women; present data suggest our microbicide prototypes have rapid initial release followed by a slow release curve over the first 24 h.
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Affiliation(s)
- Toral Zaveri
- Sensory Evaluation Center, the Pennsylvania State University, University Park, PA 16802, USA.
| | - John E Hayes
- Sensory Evaluation Center, the Pennsylvania State University, University Park, PA 16802, USA.
| | - Gregory R Ziegler
- Department of Food Science, College of Agricultural Sciences, the Pennsylvania State University, 341 Food Science Building, University Park, PA 16802, USA.
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Bajpai SK, Daheriya P. Kappa-Carrageenan/PVA Filmswith Antibacterial Properties: Part 1. Optimization of Preparation Conditions and Preliminary Drug Release Studies. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.882687] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Sohail K, Khan IU, Shahzad Y, Hussain T, Ranjha NM. pH-sensitive polyvinylpyrrolidone-acrylic acid hydrogels: Impact of material parameters on swelling and drug release. BRAZ J PHARM SCI 2014. [DOI: 10.1590/s1984-82502011000100018] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, we fabricated pH-sensitive polyvinylpyrrolidone/acrylic acid (PVP/AA) hydrogels by a free-radical polymerisation method with variation in the content of monomer, polymer and cross-linking agent. Swelling was performed in USP phosphate buffer solutions of pH 1.2, 5.5, 6.5 and 7.5 with constant ionic strength. Network structure was evaluated by different parameters and FTIR confirmed the formation of cross-linked hydrogels. X-ray crystallography showed molecular dispersion of tramadol HCl. A drug release study was carried out in phosphate buffer solutions of pH 1.2, 5.5 and 7.5 for selected samples. It was observed that swelling and drug release from hydrogels can be modified by changing composition and degree of cross-linking of the hydrogels under investigation. Swelling coefficient was high at higher pH values except for the one containing high PVP content. Drug release increased by increasing the pH of the medium and AA contents in hydrogels while increasing the concentration of cross-linking agent had the opposite effect. Analysis of the drug release mechanism revealed non-Fickian transport of tramadol from the hydrogels.
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Affiliation(s)
| | - Ikram Ullah Khan
- Faculty of Pharmacy University of Strasbourg, France; Government College (GC) University, Pakistan
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Development of high refractive ZnS/PVP/PDMAA hydrogel nanocomposites for artificial cornea implants. Acta Biomater 2014; 10:1167-76. [PMID: 24374324 DOI: 10.1016/j.actbio.2013.12.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 12/08/2013] [Accepted: 12/10/2013] [Indexed: 11/21/2022]
Abstract
A series of high refractive index (RI) ZnS/PVP/PDMAA hydrogel nanocomposites containing ZnS nanoparticles (NPs) were successfully synthesized via a simple ultraviolet-light-initiated free radical co-polymerization method. The average diameter of the ZnS NPs is ∼ 3 nm and the NPs are well dispersed and stabilized in the PVP/PDMAA hydrogel matrix up to a high content of 60 wt.% in the hydrogel nanocomposites. The equilibrium water content of ZnS/PVP/PDMAA hydrogel nanocomposites varied from 82.0 to 66.8 wt.%, while the content of mercaptoethanol-capped ZnS NPs correspondingly varied from 30 to 60 wt.%. The resulting nanocomposites are clear and transparent and their RIs were measured to be as high as 1.58-1.70 and 1.38-1.46 in the dry and hydrated states, respectively, which can be tuned by varying the ZnS NPs content. In vitro cytotoxicity assays suggested that the introduction of ZnS NPs added little cytotoxicity to the PVP/PDMAA hydrogel and all the hydrogel nanocomposites exhibited minimal cytotoxicity towards common cells. The hydrogel nanocomposites implanted in rabbit eyes can be well tolerated over 3 weeks. Hence, the high RI ZnS/PVP/PDMAA hydrogel nanocomposites with adjustable RIs developed in this work might potentially be a candidate material for artificial corneal implants.
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47
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Natural and synthetic polymers for wounds and burns dressing. Int J Pharm 2013; 463:127-36. [PMID: 24368109 DOI: 10.1016/j.ijpharm.2013.12.015] [Citation(s) in RCA: 577] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 12/10/2013] [Accepted: 12/14/2013] [Indexed: 12/15/2022]
Abstract
In the last years, health care professionals faced with an increasing number of patients suffering from wounds and burns difficult to treat and heal. During the wound healing process, the dressing protects the injury and contributes to the recovery of dermal and epidermal tissues. Because their biocompatibility, biodegradability and similarity to macromolecules recognized by the human body, some natural polymers such as polysaccharides (alginates, chitin, chitosan, heparin, chondroitin), proteoglycans and proteins (collagen, gelatin, fibrin, keratin, silk fibroin, eggshell membrane) are extensively used in wounds and burns management. Obtained by electrospinning technique, some synthetic polymers like biomimetic extracellular matrix micro/nanoscale fibers based on polyglycolic acid, polylactic acid, polyacrylic acid, poly-ɛ-caprolactone, polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, exhibit in vivo and in vitro wound healing properties and enhance re-epithelialization. They provide an optimal microenvironment for cell proliferation, migration and differentiation, due to their biocompatibility, biodegradability, peculiar structure and good mechanical properties. Thus, synthetic polymers are used also in regenerative medicine for cartilage, bone, vascular, nerve and ligament repair and restoration. Biocompatible with fibroblasts and keratinocytes, tissue engineered skin is indicated for regeneration and remodeling of human epidermis and wound healing improving the treatment of severe skin defects or partial-thickness burn injuries.
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Luong PT, Browning MB, Bixler RS, Cosgriff-Hernandez E. Drying and storage effects on poly(ethylene glycol) hydrogel mechanical properties and bioactivity. J Biomed Mater Res A 2013; 102:3066-76. [PMID: 24123725 DOI: 10.1002/jbm.a.34977] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 09/13/2013] [Accepted: 09/23/2013] [Indexed: 12/25/2022]
Abstract
Hydrogels based on poly(ethylene glycol) (PEG) are increasingly used in biomedical applications because of their ability to control cell-material interactions by tuning hydrogel physical and biological properties. Evaluation of stability after drying and storage are critical in creating an off-the-shelf biomaterial that functions in vivo according to original specifications. However, there has not been a study that systematically investigates the effects of different drying conditions on hydrogel compositional variables. In the first part of this study, PEG-diacrylate hydrogels underwent common processing procedures (vacuum-drying, lyophilizing, hydrating then vacuum-drying), and the effect of this processing on the mechanical properties and swelling ratios was measured. Significant changes in compressive modulus, tensile modulus, and swelling ratio only occurred for select processed hydrogels. No consistent trends were observed after processing for any of the formulations tested. The effect of storage conditions on cell adhesion and spreading on collagen- and streptococcal collagen-like protein (Scl2-2)-PEG-diacrylamide hydrogels was then evaluated to characterize bioactivity retention after storage. Dry storage conditions preserved bioactivity after 6 weeks of storage; whereas, storage in PBS significantly reduced bioactivity. This loss of bioactivity was attributed to ester hydrolysis of the protein linker, acrylate-PEG-N-hydroxysuccinimide. These studies demonstrate that these processing methods and dry storage conditions may be used to prepare bioactive PEG hydrogel scaffolds with recoverable functionality after storage.
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Affiliation(s)
- P T Luong
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, 77843-3120
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Characterization and antibacterial properties of genipin-crosslinked chitosan/poly(ethylene glycol)/ZnO/Ag nanocomposites. Carbohydr Polym 2012; 89:111-6. [DOI: 10.1016/j.carbpol.2012.02.058] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 02/21/2012] [Accepted: 02/21/2012] [Indexed: 10/28/2022]
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50
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Singh B, Pal L. Sterculia crosslinked PVA and PVA-poly(AAm) hydrogel wound dressings for slow drug delivery: Mechanical, mucoadhesive, biocompatible and permeability properties. J Mech Behav Biomed Mater 2012; 9:9-21. [DOI: 10.1016/j.jmbbm.2012.01.021] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2011] [Revised: 01/25/2012] [Accepted: 01/29/2012] [Indexed: 11/27/2022]
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