James R. Wingham
Tailored Additives for Incorporation of Antibacterial Functionality Into Laser Sintered Parts
Wingham, James R.; Ahmed, Ifty; Islam, Md Towhidul; Shepherd, Joanna; Majewski, Candice
Authors
Professor IFTY AHMED ifty.ahmed@nottingham.ac.uk
PROFESSOR OF MATERIALS SCIENCE AND ENGINEERING
Md Towhidul Islam
Joanna Shepherd
Candice Majewski
Abstract
Infectious disease is a major cause of death worldwide, and novel methods capable of controlling the spread of disease are in high demand. This research presents a method of producing antimicrobial microcomposites by exploiting the powder-based nature of the Laser Sintering Additive Manufacturing process, via the incorporation of silver-containing additives. Silver phosphate glass additives in different formulations were designed to determine the effect of dissolution rate on the antimicrobial efficacy. These were characterised and successfully incorporated into polyamide 12 parts, without affecting the mechanical properties. The printed microcomposite parts displayed both bactericidal and antibiofouling effects against Gram-positive and Gram-negative bacteria in nutrient-poor conditions, with the efficacy found to be more sensitive to silver content than degradation rate.
Citation
Wingham, J. R., Ahmed, I., Islam, M. T., Shepherd, J., & Majewski, C. (2022). Tailored Additives for Incorporation of Antibacterial Functionality Into Laser Sintered Parts. Frontiers in Biomaterials Science, 1, Article 929006. https://doi.org/10.3389/fbiom.2022.929006
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 9, 2022 |
Online Publication Date | Jul 8, 2022 |
Publication Date | Jul 8, 2022 |
Deposit Date | Jul 8, 2022 |
Publicly Available Date | Jul 8, 2022 |
Journal | Frontiers in Biomaterials Science |
Publisher | Frontiers Media |
Peer Reviewed | Peer Reviewed |
Volume | 1 |
Article Number | 929006 |
DOI | https://doi.org/10.3389/fbiom.2022.929006 |
Keywords | polymer laser sintering; antibacterial material; phosphate glass; microcomposite; additive manufacturing |
Public URL | https://nottingham-repository.worktribe.com/output/8855376 |
Publisher URL | https://www.frontiersin.org/articles/10.3389/fbiom.2022.929006/full? |
Additional Information | Copyright © 2022 Wingham , Ahmed , Islam , Shepherd and Majewski . This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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