Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial Applications
Polyvinyl alcohol (PVA) nanofibrous membrane, consisting of separately encapsulated glucose oxidase (GOx) and glucose (Glu) nanofibers, was prepared via simultaneously electrospinning PVA/GOx and PVA/Glu dopes. The as-prepared pristine membrane could self-sustainably generate hydrogen peroxide (H<...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/12/997 |
| _version_ | 1797502619764129792 |
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| author | Fernaldy Leonarta Cheng-Kang Lee |
| author_facet | Fernaldy Leonarta Cheng-Kang Lee |
| author_sort | Fernaldy Leonarta |
| collection | DOAJ |
| description | Polyvinyl alcohol (PVA) nanofibrous membrane, consisting of separately encapsulated glucose oxidase (GOx) and glucose (Glu) nanofibers, was prepared via simultaneously electrospinning PVA/GOx and PVA/Glu dopes. The as-prepared pristine membrane could self-sustainably generate hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) only in contact with an aqueous solution. The H<sub>2</sub>O<sub>2</sub> production level was well maintained even after storing the dry membrane at room temperature for 7 days. Cross-linking the membrane via reaction with glutaraldehyde (GA) vapor could not only prevent the nanofibrous membrane from dissolving in water but also prolonged the release of H<sub>2</sub>O<sub>2</sub>. The sustained release of H<sub>2</sub>O<sub>2</sub> from the membrane achieved antimicrobial capability equivalent to that of 1% H<sub>2</sub>O<sub>2</sub> against both <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>. Gram(+) <i>S. aureus</i> cells were more susceptible to H<sub>2</sub>O<sub>2</sub> than Gram(−) <i>E. coli</i> and >99% of <i>S. aureus</i> were killed after 1 h incubation with the membrane. Pristine and GA-crosslinked nanofibrous membrane with in situ production of H<sub>2</sub>O<sub>2</sub> were self-sterilized in which no microorganism contamination on the membrane could be detected after 2 weeks incubation on an agar plate. The GOx/Glu membrane may find potential application as versatile antimicrobial materials in the field of biomedicine, in the food and health industries, and especially challenges related to wound healing in diabetic patients. |
| first_indexed | 2024-03-10T03:35:44Z |
| format | Article |
| id | doaj.art-f66dae113ac9472b8033fe24fa6b4520 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T03:35:44Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-f66dae113ac9472b8033fe24fa6b45202023-11-23T09:31:00ZengMDPI AGMembranes2077-03752021-12-01111299710.3390/membranes11120997Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial ApplicationsFernaldy Leonarta0Cheng-Kang Lee1Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, TaiwanDepartment of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, TaiwanPolyvinyl alcohol (PVA) nanofibrous membrane, consisting of separately encapsulated glucose oxidase (GOx) and glucose (Glu) nanofibers, was prepared via simultaneously electrospinning PVA/GOx and PVA/Glu dopes. The as-prepared pristine membrane could self-sustainably generate hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) only in contact with an aqueous solution. The H<sub>2</sub>O<sub>2</sub> production level was well maintained even after storing the dry membrane at room temperature for 7 days. Cross-linking the membrane via reaction with glutaraldehyde (GA) vapor could not only prevent the nanofibrous membrane from dissolving in water but also prolonged the release of H<sub>2</sub>O<sub>2</sub>. The sustained release of H<sub>2</sub>O<sub>2</sub> from the membrane achieved antimicrobial capability equivalent to that of 1% H<sub>2</sub>O<sub>2</sub> against both <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>. Gram(+) <i>S. aureus</i> cells were more susceptible to H<sub>2</sub>O<sub>2</sub> than Gram(−) <i>E. coli</i> and >99% of <i>S. aureus</i> were killed after 1 h incubation with the membrane. Pristine and GA-crosslinked nanofibrous membrane with in situ production of H<sub>2</sub>O<sub>2</sub> were self-sterilized in which no microorganism contamination on the membrane could be detected after 2 weeks incubation on an agar plate. The GOx/Glu membrane may find potential application as versatile antimicrobial materials in the field of biomedicine, in the food and health industries, and especially challenges related to wound healing in diabetic patients.https://www.mdpi.com/2077-0375/11/12/997glucose oxidasehydrogen peroxideglucoseantimicrobial enzymeantimicrobial activityencapsulation |
| spellingShingle | Fernaldy Leonarta Cheng-Kang Lee Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial Applications Membranes glucose oxidase hydrogen peroxide glucose antimicrobial enzyme antimicrobial activity encapsulation |
| title | Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial Applications |
| title_full | Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial Applications |
| title_fullStr | Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial Applications |
| title_full_unstemmed | Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial Applications |
| title_short | Nanofibrous Membrane with Encapsulated Glucose Oxidase for Self-Sustained Antimicrobial Applications |
| title_sort | nanofibrous membrane with encapsulated glucose oxidase for self sustained antimicrobial applications |
| topic | glucose oxidase hydrogen peroxide glucose antimicrobial enzyme antimicrobial activity encapsulation |
| url | https://www.mdpi.com/2077-0375/11/12/997 |
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