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Heydari A, KhajeHassani M, Daneshafruz H, Hamedi S, Dorchei F, Kotlár M, Kazeminava F, Sadjadi S, Doostan F, Chodak I, Sheibani H. Thermoplastic starch/bentonite clay nanocomposite reinforced with vitamin B 2: Physicochemical characteristics and release behavior. Int J Biol Macromol 2023; 242:124742. [PMID: 37148934 DOI: 10.1016/j.ijbiomac.2023.124742] [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: 02/12/2023] [Revised: 04/03/2023] [Accepted: 05/01/2023] [Indexed: 05/08/2023]
Abstract
This study presents the development and characterization of a nanocomposite material, consisting of thermoplastic starch (TPS) reinforced with bentonite clay (BC) and encapsulated with vitamin B2 (VB). The research is motivated by the potential of TPS as a renewable and biodegradable substitute for petroleum-based materials in the biopolymer industry. The effects of VB on the physicochemical properties of TPS/BC films, including mechanical and thermal properties, water uptake, and weight loss in water, were investigated. In addition, the surface morphology and chemical composition of the TPS samples were analyzed using high-resolution SEM microscopy and EDS, providing insight into the structure-property relationship of the nanocomposites. The results showed that the addition of VB significantly increased the tensile strength and Young's modulus of TPS/BC films, with the highest values observed for nanocomposites containing 5 php of VB and 3 php of BC. Furthermore, the release of VB was controlled by the BC content, with higher BC content leading to lower VB release. These findings demonstrate the potential of TPS/BC/VB nanocomposites as environmentally friendly materials with improved mechanical properties and controlled release of VB, which can have significant applications in the biopolymer industry.
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Affiliation(s)
- Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia; National Institute of Rheumatic Diseases, Nábrežie I. Krasku 4782/4, 921 12 Piešťany, Slovakia.
| | - Milad KhajeHassani
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran
| | - Haniyeh Daneshafruz
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran
| | - Sepideh Hamedi
- Faculty of New Technologies Engineering, Shahid Beheshti University, Tehran, Iran
| | - Faeze Dorchei
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Mário Kotlár
- Centre for Nanodiagnostics of Materials, Faculty of Materials Science and Technology, Slovak University of Technology, Vazovova 5, Bratislava 81243, Slovakia
| | - Fahimeh Kazeminava
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samahe Sadjadi
- Gas Conversion Department, Faculty of Petrochemicals, Iran polymer and Petrochemical Institute, PO Box 14975-112, Tehran, Iran
| | - Farideh Doostan
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Ivan Chodak
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 84541 Bratislava, Slovakia
| | - Hassan Sheibani
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran
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Carlan IC, Estevinho BN, Rocha F. Innovation and improvement in food fortification: Microencapsulation of vitamin B2 and B3 by a spray-drying method and evaluation of the simulated release profiles. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1924768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ioana C. Carlan
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Berta N. Estevinho
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Fernando Rocha
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
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Theismann EM, Keppler JK, Knipp JR, Fangmann D, Appel E, Gorb SN, Waetzig GH, Schreiber S, Laudes M, Schwarz K. Adjustment of triple shellac coating for precise release of bioactive substances with different physico-chemical properties in the ileocolonic region. Int J Pharm 2019; 564:472-484. [PMID: 30991131 DOI: 10.1016/j.ijpharm.2019.04.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 01/14/2023]
Abstract
Formulations for the controlled release of substances in the human terminal ileum and colon are essential to target the gut microbiome and its interactions with the intestinal mucosa. In contrast to pharmaceutical enteric coatings, reliable food-grade alternatives are still scarce. Shellac coatings have been used for various active ingredients, but their stability is affected by the physicochemical properties of the encapsulated substances. It is well known, that shellac release can be modulated by an acidic subcoating. Here, we hypothesized that a triple shellac coating with an adjusted intermediate coating (acidic or alkaline) can be effectively used to counteract the differences in pH value of various encapsulated substances, allowing a precise targeting of the desired release pH value. First, the system was tested with riboflavin 5'-monophosphate sodium salt dihydrate (RMSD) as a characteristic model substance. Secondly, it was transferred to nicotinic acid (NA) and nicotinamide (NAM) as bioactive compounds with different physio-chemical properties: NAM, an alkaline crystalline and highly water-soluble substance, led to a premature release from conventional shellac microcapsules, whereas RMSD and NA with their medium solubility and neutral to acidic pH properties delayed the shellac dissolution. A precise modulation of the release profile of each substance was possible by the addition of different intermediate subcoatings: an acidic layer with citric acid counteracted the premature release of the alkaline and highly soluble NAM. In contrast, an alkaline sodium bicarbonate intermediate subcoating enhanced shellac swelling and delayed the release of NA and RMSD. In conclusion, the novel triple-layer shellac coating provides a much higher adaptability and reliability for nutritional formulations aiming at a targeted release in the ileocolonic region.
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Affiliation(s)
- Eva-Maria Theismann
- Division of Food Technology, Kiel University, Heinrich-Hecht-Platz 10, 24118 Kiel, Germany.
| | | | - Jörg-Rainer Knipp
- Division of Food Technology, Kiel University, Heinrich-Hecht-Platz 10, 24118 Kiel, Germany
| | - Daniela Fangmann
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
| | - Esther Appel
- Department of Functional Morphology and Biomechanics, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany
| | - Stanislav N Gorb
- Department of Functional Morphology and Biomechanics, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany
| | - Georg H Waetzig
- CONARIS Research Institute AG, Schauenburgerstrasse 116, 24118 Kiel, Germany
| | - Stefan Schreiber
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
| | - Matthias Laudes
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
| | - Karin Schwarz
- Division of Food Technology, Kiel University, Heinrich-Hecht-Platz 10, 24118 Kiel, Germany
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Cavalu S, Prokisch J, Laslo V, Vicas S. Preparation, structural characterisation and release study of novel hybrid microspheres entrapping nanoselenium, produced by green synthesis. IET Nanobiotechnol 2017; 11:426-432. [PMID: 28530192 DOI: 10.1049/iet-nbt.2016.0107] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The main goal of this study was to synthesise and characterise different formulations based on alginate and alginate/chitosan microspheres containing nanoselenium (nano-Se) for controlled delivery applications. Nanosize elemental selenium was produced by using probiotic yogurt bacteria (Lactobacillus casei) in a fermentation procedure. The structural and morphological characterisation of the microspheres was performed by Fourier transform infrared (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. FTIR and XRD pattern indicated that was an effective cross-linking of selenium nanoparticles within the polymeric matrix in both cases. The SEM images reveal that selenium nanoparticles are mainly exposed on the surface of alginate, in contrast to porous structure of alginate/chitosan/nano-Se, interconnected in a regular network. This architecture type has a considerable importance in the delivery process, as demonstrated by differential pulse voltammetry. Selenium release from both matrices is pH sensitive. Moreover, chitosan blended with alginate minimise the release of encapsulated selenium, in simulated gastric fluid, and prolong the duration of release in intestinal fluid. The overall effect is the enhancement of total percentage release concomitant with the longer duration of action. The authors' formulation based on alginate/chitosan is a convenient matrix to be used for selenium delivery in duodenum, caecum and colon.
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Affiliation(s)
- Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087, Oradea, Romania.
| | - Jόszef Prokisch
- Institute of Bio- and Environmental Energetics, Debrecen University, Boszormenyi Utca 138, Debrecen 4032, Hungary
| | - Vasile Laslo
- Faculty of Environmental Protection, University of Oradea, 26 Gen. Magheru St., 410048, Oradea, Romania
| | - Simona Vicas
- Faculty of Environmental Protection, University of Oradea, 26 Gen. Magheru St., 410048, Oradea, Romania
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Kaygusuz H, Uysal M, Adımcılar V, Erim FB. Natural alginate biopolymer montmorillonite clay composites for vitamin B2 delivery. J BIOACT COMPAT POL 2015. [DOI: 10.1177/0883911514557014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This work describes the in vitro release of a small drug, riboflavin, from novel calcium and barium crosslinked alginate–montmorillonite composite beads via oral route. Effect of crosslinking cation, concentration of montmorillonite and media on encapsulation efficiencies, and release profiles of riboflavin were studied. Beads were characterized using gravimetric swelling ability study, Fourier transform infrared spectroscopy, and scanning electron microscopy. Results indicate that addition of montmorillonite increases the encapsulation efficiencies and slows down the release rates significantly.
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Affiliation(s)
- Hakan Kaygusuz
- Department of Chemistry, Istanbul Technical University, Istanbul, Turkey
| | - Mutlu Uysal
- Department of Chemistry, Istanbul Technical University, Istanbul, Turkey
| | - Veselina Adımcılar
- Department of Chemistry, Istanbul Technical University, Istanbul, Turkey
| | - F Bedia Erim
- Department of Chemistry, Istanbul Technical University, Istanbul, Turkey
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Coviello T, Matricardi P, Marianecci C, Alhaique F. Polysaccharide hydrogels for modified release formulations. J Control Release 2007; 119:5-24. [PMID: 17382422 DOI: 10.1016/j.jconrel.2007.01.004] [Citation(s) in RCA: 574] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2006] [Accepted: 01/04/2007] [Indexed: 12/23/2022]
Abstract
Hydrogels are three-dimensional, hydrophilic, polymeric networks, with chemical or physical cross-links, capable of imbibing large amounts of water or biological fluids. Among the numerous macromolecules that can be used for hydrogel formation, polysaccharides are extremely advantageous compared to synthetic polymers being widely present in living organisms and often being produced by recombinant DNA techniques. Coming from renewable sources, polysaccharides also have frequently economical advantages over synthetic polymers. Polysaccharides are usually non-toxic, biocompatible and show a number of peculiar physico-chemical properties that make them suitable for different applications in drug delivery systems. We review here a selection of the most important polysaccharides that have been studied and exploited in several fields related to pharmaceutics. Particular attention has been focused on the techniques used for the hydrogel network preparation, on the drug delivery results, on clinical applications as well as on the possible use of such systems as scaffolds for tissue engineering.
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Bajpai S, Tankhiwale R. Investigation of dynamic release of vitamin B2 from calcium alginate/chitosan multilayered beads: Part II. REACT FUNCT POLYM 2006. [DOI: 10.1016/j.reactfunctpolym.2006.05.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bajpai SK, Sharma S. Investigation of pH‐Sensitive Swelling and Drug Release Behavior of Barium Alginate/Carboxymethyl Guar Gum Hydrogel Beads. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2006. [DOI: 10.1080/10601320600896728] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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