Project Details
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Chemically and structurally directed shape morphosis in hybrid aerogels for bone tissue engineering - Toward designing smart biomimetic 3D scaffold for bone cancer therapy and bone repair

Applicant Dr. Hajar Maleki
Subject Area Biomaterials
Synthesis and Properties of Functional Materials
Term from 2021 to 2024
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 467116484
 
Final Report Year 2025

Final Report Abstract

Clinical osteosarcoma treatment involves surgical removal followed by radiotherapy or chemotherapy. However, tumor recurrence and bone loss remain major challenges. Additionally, the limited availability and complex harvesting of autologous grafts hinder bone reconstruction. Therefore, theragenerative materials, combining therapy and regeneration, are urgently needed for efficient treatment. The primary objective of this project is to develop multi-functional 3D-printed hybrid aerogels as scaffold materials for bone tumor management. These aerogels are designed using surface-modified silk fibroin (SF) combined with functional inorganic nanoparticles to achieve dual functionality: high photothermal conversion for tumor ablation and osteogenic properties for bone regeneration. The design leverages surface modification, self-assembly, and advanced 3D printing techniques. The unique self-assembly properties of surface-modified SF in solution, coupled with its hybridization with anisotropic nanomaterials (e.g., electrospun silica nanofibers, photothermally active nanoparticles/ agents such as 2D nanosheets, enable the production of range of multifunctional composite aerogel scaffolds with interconnected and hierarchical porosity and biodegradability. Furthermore, the most promising materials undergo evaluation for their in vitro therapeutic efficacy and bone regeneration capabilities. By integrating 3D printing with innovative materials concept, this project aimed at adressing the critical clinical challenges of bone healing affected by tumor.

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