| Texto completo | |
| Autor(es): |
Thijssen, Quinten
;
Ortega, Antonio Jaen
;
Vieira, Ronierik Pioli
;
Van Vlierberghe, Sandra
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | REACTIVE & FUNCTIONAL POLYMERS; v. 205, p. 9-pg., 2024-12-01. |
| Resumo | |
The introduction of tomographic volumetric 3D printing is revolutionizing the manufacturing and bioprinting landscape by enabling the rapid creation of complex three-dimensional (biological) structures with high precision down to 20 mu m. Despite the recognized role of radical inhibition in volumetric 3D printing, a study of inhibition has remained elusive. Here, A comprehensive framework is presented to study the role of the widely reported radical inhibitor TEMPO in the volumetric 3D printability of a thiol-ene photocrosslinkable photoresist composed of triallyl isocyanurate (TTT) and pentaerythritol tetrakis(3-mercaptopropionate) (PETMP). Through photorheological measurements, kinetic modeling, FTIR spectroscopy, and validation via volumetric 3D printing, the relationship between inhibitor concentrations, the evolution of the shear moduli as well as the conversion as a function of light dose, and volumetric 3D printing is elucidated. The findings in this study provide a robust methodology for predicting optimal printing conditions of photoresists for tomographic volumetric 3D printing, obviating the need for extensive trial-and-error. (AU) | |
| Processo FAPESP: | 22/03601-4 - Hidrogéis à base de biopolímeros funcionalizados com grupos foto-reticuláveis e com oligômeros de limoneno incorporados para dispositivos médicos multifuncionais |
| Beneficiário: | Roniérik Pioli Vieira |
| Modalidade de apoio: | Bolsas no Exterior - Pesquisa |