التفاصيل البيبلوغرافية
| العنوان: |
Development and characterization of 3D printed ethylene vinyl acetate (EVA) as drug delivery device for the treatment of overactive bladder |
| المؤلفون: |
Gustavo Ferrari, Loise Silveira da Silva, Renata Cerruti, Izabelle de Mello Gindri, Gean Vitor Salmoria, Carlos Rodrigo de Mello Roesler |
| سنة النشر: |
2024 |
| المجموعة: |
Smithsonian Institution: Figshare |
| مصطلحات موضوعية: |
Biophysics, Medicine, Cell Biology, Physiology, Pharmacology, Biotechnology, Cancer, Computational Biology, Space Science, Polymers, ethylene vinyl acetate, high density polyethylene, oxybutynin, overactive bladder, drug delivery |
| الوصف: |
The overactive bladder is a condition characterized by a sudden urge to urinate, even with small volumes of urine present in the bladder. The current treatments available for this pathology consist on conservative approaches and the continuous administration of drugs, which when made by conventional methods has limitations related to the first pass metabolism, bioavailability, severe side effects, and low patient adherence to treatments, ultimately leading to low effectiveness. Within this context, the present work proposes the design, manufacture, and characterization of an intravesical implant for the treatment of overactive bladder pathology, using EVA copolymer as a matrix and oxybutynin as a drug. The fabrication of devices through two manufacturing techniques (extrusion and additive manufacturing by fused filament fabrication, FFF) and the evaluation of the implants through characterization tests was proposed. The usability and functionality were evaluated through simulated insertion of the device/prototype in a bladder model through catheter insertion tests. The safety and effectiveness of the devices was investigated from mechanical testing as well as drug release assays. Drug release assays presented a burst release in the first 24 h, followed by a release of 1.8 and 2.8 mg/d, totalizing 32 d. Mechanical tests demonstrated an increase in the stiffness of the specimens due to the addition of the drug, showing a change in maximum stress and strain at break. The released dose was higher than that usually presented when considering the oral administration route, showing the optimization of the development of this implant has the potential to improve the quality of life of patients with overactive bladder. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
https://figshare.com/articles/journal_contribution/Development_and_characterization_of_3D_printed_ethylene_vinyl_acetate_EVA_as_drug_delivery_device_for_the_treatment_of_overactive_bladder/25415113Test |
| DOI: |
10.6084/m9.figshare.25415113.v1 |
| الإتاحة: |
https://doi.org/10.6084/m9.figshare.25415113.v1Test |
| حقوق: |
CC BY 4.0 |
| رقم الانضمام: |
edsbas.4AB22F27 |
| قاعدة البيانات: |
BASE |
