Ruiz, Esteban
(2017)
SKIN-INSPIRED HYDROGEL-ELASTOMER COMPOSITE WITH APPLICATOIN IN A MOISTURE PERMEABLE PROSTHETIC LIMB LINER.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
This is the latest version of this item.
Abstract
Recent advances in fields such as 3D printing, and biomaterials, have enabled the development of a moisture permeable prosthetic liner. This project demonstrates the feasibility of the invention by addressing the three primary areas of risk including the mechanical strength, the permeability, and the ability to manufacture. The key enabling technology which allows the liner to operate is the skin inspired hydrogel elastomer composite. The skin inspiration is reflected in the molecular arrangement of the double network of polymers which mimics collagen-elastin toughening in the natural epidermis. A custom formulation for a novel tough double network nanocomposite reinforced hydrogel was developed to improve manufacturability of the liner. The liner features this double network nanocomposite reinforced hydrogel as a permeable membrane which is reinforced on either side by perforated silicone layers manufactured by 3d printing assisted casting. Uniaxial compression tests were conducted on the individual hydrogels, as well as a representative sample of off the shelf prosthetic liners for comparison. Permeability testing was also done on the same set of materials and compared to literature values for traditional hydrogels. This work led to the manufacture of three generations of liner prototypes, with the second and third liner prototype being tested with human participants.
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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
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| Date: |
5 June 2017 |
| Date Type: |
Publication |
| Defense Date: |
30 March 2017 |
| Approval Date: |
5 June 2017 |
| Submission Date: |
17 April 2017 |
| Access Restriction: |
2 year -- Restrict access to University of Pittsburgh for a period of 2 years. |
| Number of Pages: |
138 |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
School of Health and Rehabilitation Sciences > Rehabilitation Science |
| Degree: |
PhD - Doctor of Philosophy |
| Thesis Type: |
Doctoral Dissertation |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
hydrogel prosthetic limb liner |
| Date Deposited: |
05 Jun 2017 17:18 |
| Last Modified: |
05 Jun 2019 05:15 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/31590 |
Available Versions of this Item
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SKIN-INSPIRED HYDROGEL-ELASTOMER COMPOSITE WITH APPLICATOIN IN A MOISTURE PERMEABLE PROSTHETIC LIMB LINER. (deposited 05 Jun 2017 17:18)
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