Use this URL to cite or link to this record in EThOS: https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798727
Title: Investigation of 3D-scanning and 3D-printing for personalised therapy
Author: Muwaffak, Zaid
ISNI:       0000 0004 8508 3537
Awarding Body: UCL (University College London)
Current Institution: University College London (University of London)
Date of Award: 2020
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Abstract:
This present thesis focuses on the combination of 3D-printing and 3D-scanning to produce personalised external and internal biomedical devices. 3D-printing enables the production of customised medical devices in regards to shape, size and drug-loading. The first chapter provides an introductory review to 3D-printing and 3D-scanning. (A formal description of the experimental results and procedures is provided in the second chapter.) The third chapter focuses on 3D-printing of external biomedical devices. Fused-deposition-modelling 3D-printing was explored to produce personalised wound dressings. 3D-Models were obtained from 3D-scanning of a volunteer's nose, ear and hand. These dressings were 3D-printed with polycaprolactone loaded with metal-salts (copper, silver and zinc) possessing antimicrobial properties. Silver-loaded 3D-printed dressings displayed the highest antimicrobial properties, and a synergistic antimicrobial effect was produced when silver was combined with zinc. The next phase of the project focused on the development of a 3D-printed personalised positive-airway-pressure (PAP) therapy mask interface. A 3D-scanner was used to obtain a 3D-model of a volunteer's face. The device was created using a stereolithography 3D-printer to produce a mould for the interface. This mould was filled with silicone to produce the final mask. The fourth chapter explores the use of 3D-printing to manufacture internal biomedical devices. Biocompatible and biodegradable materials were incorporated with abiraterone, docetaxel or a combination of both to produce an implant for the treatment of prostate cancer. The aim is that this implant requires surgery to implant or it could be implanted during a radical prostatectomy. The implant was 3D-printed using an Aether-bioprinter. The implant was 3D-printed with various layering systems, e.g. a drug-loaded layer followed by a drug-free layer. Analysis of the 3D-printed implant revealed that the manufacturing process did not result in any physical or chemical changes to the drugs. In addition, the drug release was controlled by changing the layer height, infill or 3D-printing with pores.
Supervisor: Hilton, S. ; Simon, G. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.798727  DOI: Not available
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