Fabrication and Performance of Zinc-based Biodegradable Metals: From Conventional Processes to Laser Powder Bed Fusion

Overview

Journal Bioact Mater

Specialty Biomedical Engineering

Date 2024 Aug 20

PMID 39161793

Authors

Aobo Liu

Yu Qin

Jiabao Dai

Fei Song

Yun Tian

Yufeng Zheng

Peng Wen

Affiliations

Soon will be listed here.

Abstract

Zinc (Zn)-based biodegradable metals (BMs) fabricated through conventional manufacturing methods exhibit adequate mechanical strength, moderate degradation behavior, acceptable biocompatibility, and bioactive functions. Consequently, they are recognized as a new generation of bioactive metals and show promise in several applications. However, conventional manufacturing processes face formidable limitations for the fabrication of customized implants, such as porous scaffolds for tissue engineering, which are future direction towards precise medicine. As a metal additive manufacturing technology, laser powder bed fusion (L-PBF) has the advantages of design freedom and formation precision by using fine powder particles to reliably fabricate metallic implants with customized structures according to patient-specific needs. The combination of Zn-based BMs and L-PBF has become a prominent research focus in the fields of biomaterials as well as biofabrication. Substantial progresses have been made in this interdisciplinary field recently. This work reviewed the current research status of Zn-based BMs manufactured by L-PBF, covering critical issues including powder particles, structure design, processing optimization, chemical compositions, surface modification, microstructure, mechanical properties, degradation behaviors, biocompatibility, and bioactive functions, and meanwhile clarified the influence mechanism of powder particle composition, structure design, and surface modification on the biodegradable performance of L-PBF Zn-based BM implants. Eventually, it was closed with the future perspectives of L-PBF of Zn-based BMs, putting forward based on state-of-the-art development and practical clinical needs.

Citing Articles

Composition design and performance analysis of binary and ternary Mg-Zn-Ti alloys for biomedical implants.

Mukhtar S, Kamran M, Tayyeb A, Hussain F, Ishtiaq M, Riaz F J Biol Phys. 2025; 51(1):9.

PMID: 39939501 PMC: 11822173. DOI: 10.1007/s10867-025-09672-y.

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