Academic Journal
Stimuli-Responsive Codelivery System-Embedded Polymeric Nanofibers with Synergistic Effects of Growth Factors and Low-Intensity Pulsed Ultrasound to Enhance Osteogenesis Properties
| العنوان: | Stimuli-Responsive Codelivery System-Embedded Polymeric Nanofibers with Synergistic Effects of Growth Factors and Low-Intensity Pulsed Ultrasound to Enhance Osteogenesis Properties |
|---|---|
| المؤلفون: | Malekmohammadi, Samira, Jamshidi, Rashid, Sadowska, Joanna M, Meng, Chen, Abeykoon, Chamil, Akbari, Mohsen, Gong, R Hugh |
| بيانات النشر: | American Chemical Society (ACS) |
| سنة النشر: | 2024 |
| المجموعة: | eSpace - Manchester Metropolitan University's Research Repository |
| الوصف: | The present work aims to develop optimized scaffolds for bone repair by incorporating mesoporous nanoparticles into them, thereby combining bioactive factors for cell growth and preventing rapid release or loss of effectiveness. We synthesized biocompatible and biodegradable scaffolds designed for the controlled codelivery of curcumin (CUR) and recombinant human bone morphogenic protein-2 (rhBMP-2). Active agents in dendritic silica/titania mesoporous nanoparticles (DSTNs) were incorporated at different weight percentages (0, 2, 5, 7, 9, and 10 wt %) into a matrix of polycaprolactone (PCL) and polyethylene glycol (PEG) nanofibers, forming the CUR-BMP-2@DSTNs/PCL–PEG delivery system (S0, S2, S5, S7, S9, and S10, respectively, with the number showing the weight percentage). To enhance the formation process, the system was treated using low-intensity pulsed ultrasound (LIPUS). Different advanced methods were employed to assess the physical, chemical, and mechanical characteristics of the fabricated scaffolds, all confirming that incorporating the nanoparticles improves their mechanical and structural properties. Their hydrophilicity increased by approximately 25%, leading to ca. 53% enhancement in their water absorption capacity. Furthermore, we observed a sustained release of approximately 97% for CUR and 70% for BMP-2 for the S7 (scaffold with 7 wt % DSTNs) over 28 days, which was further enhanced using ultrasound. In vitro studies demonstrated accelerated scaffold biodegradation, with the highest level observed in S7 scaffolds, approximately three times higher than the control group. Moreover, the cell viability and proliferation on DSTNs-containing scaffolds increased when compared to the control group. Overall, our study presents a promising nanocomposite scaffold design with notable improvements in structural, mechanical, and biological properties compared to the control group, along with controlled and sustained drug release capabilities. This makes the scaffold a compelling candidate for advanced bone ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | text |
| اللغة: | English |
| Relation: | https://e-space.mmu.ac.uk/635140/; http://dx.doi.org/10.1021/acsabm.4c00111 |
| الاتاحة: | https://e-space.mmu.ac.uk/635140/1/malekmohammadi-et-al-2024-stimuli-responsive-codelivery-system-embedded-polymeric-nanofibers-with-synergistic-effects.pdf |
| Rights: | cc_by_4 ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.4DCF9D60 |
| قاعدة البيانات: | BASE |
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