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Balakrishnan B, Sarojini BK, Kodoth AK, Dayananda BS, Venkatesha R. Fabrication and characterization of tamarind seed gum based novel hydrogel for the targeted delivery of omeprazole magnesium. Int J Biol Macromol 2024; 258:128758. [PMID: 38103480 DOI: 10.1016/j.ijbiomac.2023.128758] [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: 10/10/2023] [Revised: 12/01/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
The tamarind seed gum based novel hydrogel was fabricated by varying concentration of polymer, monomer and crosslinker for the targeted delivery of omeprazole magnesium at stomach pH of 1.5. The free radical graft copolymerization of 2-acrylamido-2-methyl propane sulfonic acid with tamarind seed gum backbone resulted in hydrogel. The formation of sulfonic acid pendant groups in hydrogel was observed by the existence of an infrared absorption band at 1152 cm-1 for SO group. The conversion to semicrystalline nature on incorporation of drug evidenced by powder X-ray diffraction studies with peaks at 2θ = 20.4° 31.5° and 52.2°. The scanning electron microscopy images showed bigger voids which narrowed down for drug loaded matrix, supported by the presence of a peak for magnesium in the energy dispersive X-ray spectroscopy. The greatest swelling was observed at pH 7 with second-order rate constant 1.5371 (g/g)/min and drug release was found to be 97.85 ± 1 % over 1200 min at pH 1.5. The drug release transport was found combination of diffusion and erosion of polymer chain to be super case II diffusion and Hill equation model was good fit. The hydrogel drug conjugate found to be non-toxic at tested concentrations (17 mg/50 mg) on in-vivo testing in Drosophila model.
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Affiliation(s)
- Bhavya Balakrishnan
- Department of Industrial Chemistry, Mangalore University, Mangalagangotri 574199, Karnataka, India
| | | | - Arun Krishna Kodoth
- Department of Industrial Chemistry, Mangalore University, Mangalagangotri 574199, Karnataka, India
| | | | - Ranjitha Venkatesha
- Department of Chemistry, Mangalore University, Mangalagangotri 574199, Karnataka, India
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Ahmad SA, Lewis A, Parkes G, Tang Y, Waters L. Quantification and characterization of water within drug-eluting beads. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Smart Hydrogel Bilayers Prepared by Irradiation. Polymers (Basel) 2021; 13:polym13111753. [PMID: 34072009 PMCID: PMC8197863 DOI: 10.3390/polym13111753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 11/20/2022] Open
Abstract
Environment-responsive hydrogel actuators have attracted tremendous attention due to their intriguing properties. Gamma radiation has been considered as a green cross-linking process for hydrogel synthesis, as toxic cross-linking agents and initiators were not required. In this work, chitosan/agar/P(N-isopropyl acrylamide-co-acrylamide) (CS/agar/P(NIPAM-co-AM)) and CS/agar/Montmorillonite (MMT)/PNIPAM temperature-sensitive hydrogel bilayers were synthesized via gamma radiation at room temperature. The mechanical properties and temperature sensitivity of hydrogels under different agar content and irradiation doses were explored. The enhancement of the mechanical properties of the composite hydrogel can be attributed to the presence of agar and MMT. Due to the different temperature sensitivities provided by the two layers of hydrogel, they can move autonomously and act as a flexible gripper as the temperature changes. Thanks to the antibacterial properties of the hydrogel, their storage time and service life may be improved. The as prepared hydrogel bilayers have potential applications in control devices, soft robots, artificial muscles and other fields.
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Ion-exchanging dialysis as an effective method for protein entrapment in curdlan hydrogel. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110025. [DOI: 10.1016/j.msec.2019.110025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/26/2019] [Accepted: 07/26/2019] [Indexed: 11/15/2022]
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Chen XY, Low HR, Loi XY, Merel L, Mohd Cairul Iqbal MA. Fabrication and evaluation of bacterial nanocellulose/poly(acrylic acid)/graphene oxide composite hydrogel: Characterizations and biocompatibility studies for wound dressing. J Biomed Mater Res B Appl Biomater 2019; 107:2140-2151. [DOI: 10.1002/jbm.b.34309] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/23/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Xiang Yi Chen
- Faculty of PharmacyUniversiti Kebangsaan Malaysia (UKM), Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur Malaysia
| | - Hao Ran Low
- Faculty of PharmacyUniversiti Kebangsaan Malaysia (UKM), Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur Malaysia
| | - Xin Yi Loi
- Faculty of PharmacyUniversiti Kebangsaan Malaysia (UKM), Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur Malaysia
| | - Laura Merel
- Faculte de PharmacieUniversité Clermont Auvergne (UCA), 49 Boulevard François Mitterrand, 63001 Clermont‐Ferrand France
| | - Mohd Amin Mohd Cairul Iqbal
- Faculty of PharmacyUniversiti Kebangsaan Malaysia (UKM), Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur Malaysia
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Avila-Salas F, Rodriguez Nuñez YA, Marican A, Castro RI, Villaseñor J, Santos LS, Wehinger S, Durán-Lara EF. Rational Development of a Novel Hydrogel as a pH-Sensitive Controlled Release System for Nifedipine. Polymers (Basel) 2018; 10:E806. [PMID: 30960732 PMCID: PMC6403543 DOI: 10.3390/polym10070806] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/10/2018] [Accepted: 07/22/2018] [Indexed: 11/16/2022] Open
Abstract
This work depicts the rational development (in-silico design, synthesis, characterization and in-vitro evaluation) of polyvinyl alcohol hydrogels (PVAH) cross-linked with maleic acid (MA) and linked to γ-cyclodextrin molecules (γ-CDPVAHMA) as systems for the controlled and sustained release of nifedipine (NFD). Through computational studies, the structural blocks (PVA chain + dicarboxylic acid + γ-CD) of 20 different hydrogels were evaluated to test their interaction energies (ΔE) with NFD. According to the ΔE obtained, the hydrogel cross-linked with maleic acid was selected. To characterize the intermolecular interactions between NFD and γ-CDPVAHMA, molecular dynamics simulation studies were carried out. Experimentally, three hydrogel formulations with different proportions of γ-CD (2.43%, 3.61% and 4.76%) were synthesized and characterized. Both loading and release of NFD from the hydrogels were evaluated at acid and basic pH. The computational and experimental results show that γ-CDs linked to the hydrogels were able to form 1:1 inclusion complexes with NFD molecules. Finally, γ-CDPVAHMA-3 demonstrated to be the best pH-sensitive release platform for nifedipine. Its effectiveness could significantly reduce the adverse effects caused by the anticipated release of NFD in the stomach of patients.
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Affiliation(s)
- Fabián Avila-Salas
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Huechuraba 8580000, Región Metropolitana, Chile.
| | - Yeray A Rodriguez Nuñez
- BioNanoMaterials Lab|Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile.
| | - Adolfo Marican
- BioNanoMaterials Lab|Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile.
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile.
| | - Ricardo I Castro
- Multidisciplinary Agroindustry Research Laboratory, Universidad Autónoma de Chile, Talca 3460000, Maule, Chile.
- Carrera de Ingeniería en Construcción e Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Talca 3460000, Maule, Chile.
| | - Jorge Villaseñor
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile.
| | - Leonardo S Santos
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile.
| | - Sergio Wehinger
- Department of Clinical Biochemistry and Immunohematology, Faculty of Heatlh Sciences, Universidad de Talca, Talca 3460000, Maule, Chile.
- Center for Studies of Exercise, Metabolism and Cancer (CEMC), Universidad de Chile, Independencia 8380000, Región Metropolitana, Chile.
| | - Esteban F Durán-Lara
- BioNanoMaterials Lab|Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile.
- Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Maule, Chile.
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Bakravi A, Ahamadian Y, Hashemi H, Namazi H. Synthesis of gelatin-based biodegradable hydrogel nanocomposite and their application as drug delivery agent. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.21938] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Asghar Bakravi
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Yashar Ahamadian
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Hamed Hashemi
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Hassan Namazi
- Research Laboratory of Dendrimers and Nanopolymers; Faculty of Chemistry; University of Tabriz; Tabriz Iran
- Research Center for Pharmaceutical Nanotechnology (RCPN); Tabriz University of Medical Science; Tabriz Iran
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Takemura K, Ajiro H, Fujiwara T, Akashi M. A novel substrate for testosterone: biodegradable and biocompatible oil gel. Polym J 2015. [DOI: 10.1038/pj.2015.17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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