| Autor: |
Nenad Krstić, Jens Jüttner, Lars Giegerich, Margot Mayer, Monika Knuth, Achim Müller, Christiane Thielemann |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Annals of 3D Printed Medicine, Vol 10, Iss , Pp 100111- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2666-9641 |
| DOI: |
10.1016/j.stlm.2023.100111 |
| Popis: |
A novel 3D-printed glucose sensor is presented for cell culture application. Glucose sensing was performed using a fluorescence resonance energy transfer (FRET)-based assay principle based on ConA and dextran. Both molecules are encapsulated in alginate microspheres and embedded in the UV-curable, stable hydrogel polyvinyl alcohol (PVA). The rheology of the formulation was adapted to obtain good properties for an extrusion-based printing process. The printed sensor structures were tested for their ability to detect glucose in vitro. A proportional increase in fluorescence intensity was observed in a concentration range of 0 - 2 g/L glucose. Tests with HEK cell cultures also showed good cell compatibility and excellent adhesion properties on plasma-treated Petri dishes. The printed sensors were able to detect the glucose decay associated with the metabolic activities of the fast-growing HEK cells in the cell culture medium over ten days. The proof-of-principle study shows that metabolic processes in cell cultures can be monitored with the new printed sensor using a standard fluorescence wide-field microscope. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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