Development of electrospun, biomimetic tympanic membrane implants with tunable mechanical and oscillatory properties for myringoplasty

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Abstract

Most commonly, autologous grafts are used in tympanic membrane (TM) reconstruction. However, apart from the limited availability and the increased surgical risk, they cannot replicate the full functionality of the human TM properly. Hence, biomimetic synthetic TM implants have been developed in our project to overcome these drawbacks. These innovative TM implants are made from synthetic biopolymer polycaprolactone (PCL) and silk fibroin (SF) by electrospinning technology. Static and dynamic experiments have shown that the mechanical and oscillatory behavior of the TM implants can be tuned by adjusting the solution concentration, the SF and PCL mixing ratio and the electrospinning parameters. In addition, candidates for TM implants could have comparable acousto-mechanical properties to human TMs. Finally, these candidates were further validated in in vitro experiments by performing TM reconstruction in human cadaver temporal bones. The reconstructed TM with SF-PCL blend membranes fully recovered the acoustic vibration when the perforation was smaller than 50%. Furthermore, the handling, medium adhesion and transparency of the developed TM implants were similar to those of human TMs.

Details

OriginalspracheEnglisch
Seiten (von - bis)2287-2301
Seitenumfang15
FachzeitschriftBiomaterials science
Jahrgang10
Ausgabenummer9
PublikationsstatusVeröffentlicht - 1 Apr. 2022
Peer-Review-StatusJa

Externe IDs

Scopus 85128387587
WOS 000776768300001
Mendeley 9c7aa31a-ba5f-3c07-80c4-baf8da3a93e4
unpaywall 10.1039/d1bm01815a
ORCID /0000-0002-7440-9277/work/142239103
ORCID /0000-0003-3894-1175/work/148603708

Schlagworte

Forschungsprofillinien der TU Dresden

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

Schlagwörter

  • IN-VITRO, POLYMER-SOLUTIONS, BIOCOMPATIBILITY, DEGRADATION, CARTILAGE, DESIGN, FIBERS