Development and Evaluation of Superabsorbent Hydrogels Based on Natural Polymers
Superabsorbent hydrogels (SAHs) are three dimensional networks formed by polymers that can absorb aqueous solution of over 100% of their initial weight. This work aimed to develop and characterize SAHs of Chitosan/Xanthan gum (CG), Chitosan/Alginate (CA) and controlled Chitosan (C), Xanthan gum (G),...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/10/2173 |
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| author | Rejane A. Batista Paula J. P. Espitia Daviane M. C. Vergne António A. Vicente Paula A. C. Pereira Miguel A. Cerqueira José A. Teixeira Jelena Jovanovic Patricia Severino Eliana B. Souto Juliana C. Cardoso |
| author_facet | Rejane A. Batista Paula J. P. Espitia Daviane M. C. Vergne António A. Vicente Paula A. C. Pereira Miguel A. Cerqueira José A. Teixeira Jelena Jovanovic Patricia Severino Eliana B. Souto Juliana C. Cardoso |
| author_sort | Rejane A. Batista |
| collection | DOAJ |
| description | Superabsorbent hydrogels (SAHs) are three dimensional networks formed by polymers that can absorb aqueous solution of over 100% of their initial weight. This work aimed to develop and characterize SAHs of Chitosan/Xanthan gum (CG), Chitosan/Alginate (CA) and controlled Chitosan (C), Xanthan gum (G), and Alginate (A) produced using “onion-like” methodology. The swelling performance, the morphological structure, the crystallinity, and the Fourier transformed infrared spectroscopy characteristics of SAH were used for the characterization of polyelectrolytes complex. Swelling analysis showed that chitosan has a strong influence on the maintenance of hydrogels structure after swelling, mainly in the acid environment (pH = 2). The chitosan hydrogel presented around 3000% of acidic fluid absorption after 24 h. The chitosan:xanthan gum (1:1 and 2:1 named as C1G1 and C2G1, respectively) hydrogels were the best combination regarding swelling performance in an acid environment, reaching 1665% and 2024%, respectively, as well at pH 7.0, presenting 1005% (C1G1) and 667% (C2G1). Scanning electron microscopy analysis showed samples with pores, and with different shapes. The X-ray diffraction showed the presence of a characteristic peak at 2θ = 20° in all developed composition because of the crystalline nature of chitosan. This work shows the possibility of developing eco-friendly biopolymer-based SAHs at a low cost with a good swelling capacity and stability. |
| first_indexed | 2024-03-10T16:06:14Z |
| format | Article |
| id | doaj.art-01ba771c25a14330940a367042ea7d50 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T16:06:14Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-01ba771c25a14330940a367042ea7d502023-11-20T14:49:52ZengMDPI AGPolymers2073-43602020-09-011210217310.3390/polym12102173Development and Evaluation of Superabsorbent Hydrogels Based on Natural PolymersRejane A. Batista0Paula J. P. Espitia1Daviane M. C. Vergne2António A. Vicente3Paula A. C. Pereira4Miguel A. Cerqueira5José A. Teixeira6Jelena Jovanovic7Patricia Severino8Eliana B. Souto9Juliana C. Cardoso10Post-Graduating Program in Biotechnology, Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, Aracaju 49032-490, BrazilNutrition and Dietetics School, University of Atlántico—Universidad del Atlantico, Puerto Colombia, Atlántico 081001, ColombiaPost-Graduating Program in Biotechnology, Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, Aracaju 49032-490, BrazilCEB—Center of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, PortugalCEB—Center of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, PortugalInternational Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, PortugalCEB—Center of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, PortugalSerbia Institute of General and Physical Chemistry, a.d., Studentski trg 12/V, 11158 Belgrade, SerbiaPost-Graduating Program in Biotechnology, Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, Aracaju 49032-490, BrazilCEB—Center of Biological Engineering, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, PortugalPost-Graduating Program in Biotechnology, Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, Aracaju 49032-490, BrazilSuperabsorbent hydrogels (SAHs) are three dimensional networks formed by polymers that can absorb aqueous solution of over 100% of their initial weight. This work aimed to develop and characterize SAHs of Chitosan/Xanthan gum (CG), Chitosan/Alginate (CA) and controlled Chitosan (C), Xanthan gum (G), and Alginate (A) produced using “onion-like” methodology. The swelling performance, the morphological structure, the crystallinity, and the Fourier transformed infrared spectroscopy characteristics of SAH were used for the characterization of polyelectrolytes complex. Swelling analysis showed that chitosan has a strong influence on the maintenance of hydrogels structure after swelling, mainly in the acid environment (pH = 2). The chitosan hydrogel presented around 3000% of acidic fluid absorption after 24 h. The chitosan:xanthan gum (1:1 and 2:1 named as C1G1 and C2G1, respectively) hydrogels were the best combination regarding swelling performance in an acid environment, reaching 1665% and 2024%, respectively, as well at pH 7.0, presenting 1005% (C1G1) and 667% (C2G1). Scanning electron microscopy analysis showed samples with pores, and with different shapes. The X-ray diffraction showed the presence of a characteristic peak at 2θ = 20° in all developed composition because of the crystalline nature of chitosan. This work shows the possibility of developing eco-friendly biopolymer-based SAHs at a low cost with a good swelling capacity and stability.https://www.mdpi.com/2073-4360/12/10/2173alginateionic complexationxanthan gumchitosanhydrogelsuperabsorbent polymer |
| spellingShingle | Rejane A. Batista Paula J. P. Espitia Daviane M. C. Vergne António A. Vicente Paula A. C. Pereira Miguel A. Cerqueira José A. Teixeira Jelena Jovanovic Patricia Severino Eliana B. Souto Juliana C. Cardoso Development and Evaluation of Superabsorbent Hydrogels Based on Natural Polymers Polymers alginate ionic complexation xanthan gum chitosan hydrogel superabsorbent polymer |
| title | Development and Evaluation of Superabsorbent Hydrogels Based on Natural Polymers |
| title_full | Development and Evaluation of Superabsorbent Hydrogels Based on Natural Polymers |
| title_fullStr | Development and Evaluation of Superabsorbent Hydrogels Based on Natural Polymers |
| title_full_unstemmed | Development and Evaluation of Superabsorbent Hydrogels Based on Natural Polymers |
| title_short | Development and Evaluation of Superabsorbent Hydrogels Based on Natural Polymers |
| title_sort | development and evaluation of superabsorbent hydrogels based on natural polymers |
| topic | alginate ionic complexation xanthan gum chitosan hydrogel superabsorbent polymer |
| url | https://www.mdpi.com/2073-4360/12/10/2173 |
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