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Lima ISD, Silva AS, Nascimento AMSS, de Oliveira LH, Morais AÍS, Barreto HM, Peña-Garcia R, Cuevas MDMO, Argôlo Neto NM, Osajima JA, Muniz EC, da Silva-Filho EC. Synthesis and Characterization of Cassava Gum Hydrogel Associated with Chlorhexidine and Evaluation of Release and Antimicrobial Activity. Macromol Biosci 2024; 24:e2300507. [PMID: 38332467 DOI: 10.1002/mabi.202300507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/28/2023] [Indexed: 02/10/2024]
Abstract
Hydrogels from natural sources are attracting increasing interest due to their ability to protect biologically active molecules. Starch extracted from cassava tubers is a promising material for synthesizing these hydrogels. Copolymerization of cassava gum and incorporation of chlorhexidine digluconate (CLX) into the hydrogels is confirmed by changes in the crystallographic profile, as observed through X-ray diffraction, and a shift in the 1000 cm-1 band in the Fourier-transform infrared spectroscopy spectrum. The differential scanning calorimetry reveals changes in the decomposition temperature of the synthesized hydrogels related to CLX volatility. Micrographs illustrate the material's porosity. Release tests indicate a constant linear release over 72 h, while antimicrobial activity against Staphylococcus aureus, Escherichia coli, and Candida albicans is satisfactory, with 100% effectiveness from 0.5% CLX and the formation of inhibition halos. Toxicity and biocompatibility studies show no cytotoxicity. The continuous release of chlorhexidine is promising for components of biomedical implants and applications as it can ensure antimicrobial action according to specific therapeutic needs.
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Affiliation(s)
- Idglan Sá de Lima
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | - Albert Santos Silva
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | - Ariane Maria Silva Santos Nascimento
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | - Luís Humberto de Oliveira
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | - Alan Ícaro Sousa Morais
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | | | - Ramón Peña-Garcia
- Federal Rural University of Pernambuco, Academic Unit of Cabo de Santo Agostinho, Cabo de Santo Agostinho, PE, Brazil
| | - Maria Del Mar Orta Cuevas
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Sevilla, Sevilla, ES, 41012, Spain
| | - Napoleão Martins Argôlo Neto
- Integrated Nucleus of Morphology and Stem Cell Research (NUPCelt), Postgraduate Program in Technologies Applied to Animals of Regional Interest, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | - Josy Anteveli Osajima
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | - Edvani Curti Muniz
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
| | - Edson Cavalcanti da Silva-Filho
- Interdisciplinary Laboratory of Advanced Materials (LIMAV), Postgraduate Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil
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