A simple one-pot fabrication of silver loaded semi-interpenetrating polymer network (IPN) hydrogels with self-healing and bactericidal abilities
| Autor: | Hestina Hestina, Subur P. Pasaribu, Indra Masmur, Mimpin Ginting |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
food.ingredient
General Chemical Engineering Polyacrylic acid technology industry and agriculture Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology complex mixtures 01 natural sciences Gelatin 0104 chemical sciences chemistry.chemical_compound Silver chloride food chemistry Chemical engineering Self-healing Self-healing hydrogels medicine Ferric Interpenetrating polymer network 0210 nano-technology medicine.drug |
| Zdroj: | RSC Advances. 9:39515-39522 |
| ISSN: | 2046-2069 |
| Popis: | In the last decade, there has been a significant increase in the development of self-healing hydrogels. However, in most cases, the synthesized self-healing hydrogels possess no antibacterial properties. Further, the preparation of self-healing hydrogels usually requires sophisticated processes and also involves multiple steps. Herein, we proposed a simple one-pot synthesis of silver loaded semi-IPN hydrogels with self-healing and antibacterial properties. The hydrogels were prepared by physical cross-linking between polyacrylic acid (PAA) and ferric ions (Fe3+) and further modified by the interpenetration of gelatin-silver in the networks. In addition, the effect by varying the gelatin concentration was also studied. The mechanical properties of the as-prepared hydrogels reached 0.79 MPa in stress and 920% in strain with the self-healing efficiency of 87.5% (healed at 70 °C for 2 h). As displayed by the SEM images, the incorporated silver chloride nanoparticles (AgCl NPs) in gelatin-free hydrogels were agglomerated. Meanwhile, well-distributed AgCl NPs in the hydrogels were obtained in the presence of gelatin which acts as a stabilizer. Moreover, due to Fe3+ and AgCl NPs, the hydrogels were able to inhibit the growth of bacteria indicated by an inhibition zone (9–9.6 mm) which was examined toward Escherichia coli via the disk-diffusion method. |
| Databáze: | OpenAIRE |
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