PMID- 33302170 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20210514 IS - 1878-0180 (Electronic) IS - 1878-0180 (Linking) VI - 114 DP - 2021 Feb TI - Fabrication of tissue-engineered tympanic membrane patches using 3D-Printing technology. PG - 104219 LID - S1751-6161(20)30759-1 [pii] LID - 10.1016/j.jmbbm.2020.104219 [doi] AB - In recent years, scaffolds produced in 3D printing technology have become more widespread tool due to providing more advantages than traditional methods in tissue engineering applications. In this research, it was aimed to produce patches for the treatment of tympanic membrane perforations which caused significant hearing loss by using 3D printing method. Polylactic acid(PLA) scaffolds with Chitosan(CS) and Sodium Alginate(SA) added in various ratios were prepared for artificial eardrum patches. Different amounts of chitosan and sodium alginate added to PLA increased the biocompatibility of the produced scaffolds. The created patches were designed by mimicking the thickness of the natural tympanic membrane thanks to the precision provided by the 3D printed method. The produced scaffolds were analyzed separately for chemical, morphological, mechanical and biocompatibility properties. Scanning electron microscope (SEM), Fourier-transform infrared (FT-IR) spectroscopy was performed to observe the surface morphology and chemical structure of the scaffolds. Mechanical, thermal and physical properties, swelling and degradation behaviors were examined to fully analyze whole characteristic features of the samples. Cell culture study was also performed to demonstrate the biocompatibility properties of the fabricated scaffolds with human adipose tissue-derived mesenchymal stem cells (hAD-MSCs). 15 wt % PLA was selected as the control group and among all concentrations of CS and SA, groups containing 3 wt% CS and 3 wt% SA showed significantly superior and favorable features in printing quality. The research continued with these two scaffolds (3 wt% CS, and 3 wt% SA), which showed improved print quality when added to PLA. Overall, these results show that PLA/CS and PLA/SA 3D printed artificial patches have the potential to tissue engineering solutions to repair tympanic membrane perforation for people with hearing loss. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Ilhan, Elif AU - Ilhan E AD - Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Bioengineering, Faculty of Engineering, Marmara University, 38000, 34722, Turkey. FAU - Ulag, Songul AU - Ulag S AD - Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Turkey. FAU - Sahin, Ali AU - Sahin A AD - Department of Biochemistry, School of Medicine / Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, Istanbul, Turkey. FAU - Yilmaz, Betul Karademir AU - Yilmaz BK AD - Department of Biochemistry, School of Medicine / Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, Istanbul, Turkey. FAU - Ekren, Nazmi AU - Ekren N AD - Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Electrical and Electronics Engineering, Faculty of Technology, Marmara University, Turkey. FAU - Kilic, Osman AU - Kilic O AD - Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Electrical and Electronics Engineering, Faculty of Technology, Marmara University, Turkey. FAU - Sengor, Mustafa AU - Sengor M AD - Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey. FAU - Kalaskar, Deepak M AU - Kalaskar DM AD - UCL Division of Surgery and Interventional Science, Royal National Orthopaedic Hospital, Brockely Hill, HA7 4LP, UK. FAU - Oktar, Faik Nuzhet AU - Oktar FN AD - Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Bioengineering, Faculty of Engineering, Marmara University, 38000, 34722, Turkey. FAU - Gunduz, Oguzhan AU - Gunduz O AD - Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Turkey. Electronic address: ucemogu@ucl.ac.uk. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201202 PL - Netherlands TA - J Mech Behav Biomed Mater JT - Journal of the mechanical behavior of biomedical materials JID - 101322406 SB - IM MH - Humans MH - Printing, Three-Dimensional MH - Spectroscopy, Fourier Transform Infrared MH - *Tissue Engineering MH - *Tissue Scaffolds MH - Tympanic Membrane OTO - NOTNLM OT - 3D printing OT - Artificial eardrum patch OT - Biomaterials OT - Tissue engineering OT - Tympanic membrane EDAT- 2020/12/11 06:00 MHDA- 2021/05/15 06:00 CRDT- 2020/12/10 20:13 PHST- 2020/03/23 00:00 [received] PHST- 2020/10/31 00:00 [revised] PHST- 2020/11/20 00:00 [accepted] PHST- 2020/12/11 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2020/12/10 20:13 [entrez] AID - S1751-6161(20)30759-1 [pii] AID - 10.1016/j.jmbbm.2020.104219 [doi] PST - ppublish SO - J Mech Behav Biomed Mater. 2021 Feb;114:104219. doi: 10.1016/j.jmbbm.2020.104219. Epub 2020 Dec 2.