Flachs, Dennis ; Zhukov, Sergey ; Zech, Isabella ; Schreck, Timo ; Belle, Stefan ; Seggern, Heinz von ; Kupnik, Mario ; Altmann, Alexander Anton ; Thielemann, Christiane (2024)
Enzymatic Self-Degradable PLA-Based Electrets.
In: Journal of Polymers and the Environment, 32
doi: 10.1007/s10924-024-03240-6
Article, Bibliographie
This is the latest version of this item.
Abstract
In recent years, the demand for sustainable and degradable materials and electronic devices has increased significantly. Among a range of biodegradable polymers, poly(lactic acid) (PLA) is a good alternative to conventional petrol-based polymers because of its attractive mechanical properties and its easy processability. Recently, PLA has also been described as a promising dielectric material with piezoelectric and electret properties. We expect that PLA—after further optimization—will play an important role as a material for environmentally friendly sensors in the future, where first applications such as air filters and pressure sensors have already been proposed. However, degradation under normal ambient conditions is very slow, and an accelerated and controllable degradation process is highly desirable for any type of PLA-based sensors. Enzymatic hydrolysis with embedded enzymes has been proposed as an approach to accelerate and control degradation. In this work, we investigate the properties of PLA in terms of dielectric and mechanical properties with a focus on its ability to store charges after the enzyme proteinase K (Trit. album) has been incorporated. Results reveal that proteinase K has a positive effect on the charge stability of solvent-cast PLA electrets after complete evaporation of the solvent. Furthermore, we observed a concentration-dependent acceleration of mass loss in a Tris-HCl buffer. A fast degradation within only one day occurred at a concentration of 6 wt% proteinase K.
| Item Type: | Article |
|---|---|
| Erschienen: | 2024 |
| Creators: | Flachs, Dennis ; Zhukov, Sergey ; Zech, Isabella ; Schreck, Timo ; Belle, Stefan ; Seggern, Heinz von ; Kupnik, Mario ; Altmann, Alexander Anton ; Thielemann, Christiane |
| Type of entry: | Bibliographie |
| Title: | Enzymatic Self-Degradable PLA-Based Electrets |
| Language: | English |
| Date: | 1 March 2024 |
| Place of Publication: | New York |
| Publisher: | Springer |
| Journal or Publication Title: | Journal of Polymers and the Environment |
| Volume of the journal: | 32 |
| DOI: | 10.1007/s10924-024-03240-6 |
| Corresponding Links: | |
| Abstract: | In recent years, the demand for sustainable and degradable materials and electronic devices has increased significantly. Among a range of biodegradable polymers, poly(lactic acid) (PLA) is a good alternative to conventional petrol-based polymers because of its attractive mechanical properties and its easy processability. Recently, PLA has also been described as a promising dielectric material with piezoelectric and electret properties. We expect that PLA—after further optimization—will play an important role as a material for environmentally friendly sensors in the future, where first applications such as air filters and pressure sensors have already been proposed. However, degradation under normal ambient conditions is very slow, and an accelerated and controllable degradation process is highly desirable for any type of PLA-based sensors. Enzymatic hydrolysis with embedded enzymes has been proposed as an approach to accelerate and control degradation. In this work, we investigate the properties of PLA in terms of dielectric and mechanical properties with a focus on its ability to store charges after the enzyme proteinase K (Trit. album) has been incorporated. Results reveal that proteinase K has a positive effect on the charge stability of solvent-cast PLA electrets after complete evaporation of the solvent. Furthermore, we observed a concentration-dependent acceleration of mass loss in a Tris-HCl buffer. A fast degradation within only one day occurred at a concentration of 6 wt% proteinase K. |
| Uncontrolled Keywords: | Polylactic acid, Proteinase, Enzymatic degradation, Electret, Hydrolysis, Charge storage |
| Classification DDC: | 600 Technology, medicine, applied sciences > 621.3 Electrical engineering, electronics |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 18 Department of Electrical Engineering and Information Technology 18 Department of Electrical Engineering and Information Technology > Measurement and Sensor Technology |
| Date Deposited: | 11 Sep 2024 09:46 |
| Last Modified: | 11 Sep 2024 09:46 |
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| Suche nach Titel in: | TUfind oder in Google |
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Enzymatic Self-Degradable PLA-Based Electrets. (deposited 10 Sep 2024 12:45)
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