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, 2024, 32
doi: 10.26083/tuprints-00027699
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Flachs, Dennis ; Zhukov, Sergey ; Zech, Isabella ; Schreck, Timo ; Belle, Stefan ; Seggern, Heinz von ; Kupnik, Mario ; Altmann, Alexander Anton ; Thielemann, Christiane |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Enzymatic Self-Degradable PLA-Based Electrets |
| Sprache: | Englisch |
| Publikationsjahr: | 10 September 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 1 März 2024 |
| Ort der Erstveröffentlichung: | New York |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Polymers and the Environment |
| Jahrgang/Volume einer Zeitschrift: | 32 |
| DOI: | 10.26083/tuprints-00027699 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/27699 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | Polylactic acid, Proteinase, Enzymatic degradation, Electret, Hydrolysis, Charge storage |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-276991 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 621.3 Elektrotechnik, Elektronik |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Mess- und Sensortechnik |
| Hinterlegungsdatum: | 10 Sep 2024 12:45 |
| Letzte Änderung: | 11 Sep 2024 09:44 |
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