Selective Laser Melting of the Porous Ta Scaffold with Mg-Doped Calcium Phosphate Coating for Orthopedic Applications

Addressing the repair of large-scale bone defects has become a hot research topic within the field of orthopedics. This study assessed the feasibility and effectiveness of using porous tantalum scaffolds to treat such defects. These scaffolds, manufactured using the selective laser melting (SLM) technology, possessed biomechanical properties compatible with natural bone tissue. To enhance the osteogenesis bioactivity of these porous Ta scaffolds, we applied calcium phosphate (CaP) and magnesium-doped calcium phosphate (Mg-CaP) coatings to the surface of SLM Ta scaffolds through a hydrothermal method. These degradable coatings released calcium and magnesium ions, demonstrating osteogenic bioactivity. Experimental results indicated that the Mg-CaP group exhibited biocompatibility comparable to that of the Ta group in vivo and in vitro. In terms of osteogenesis, both the CaP group and the Mg-CaP group showed improved outcomes compared to the control group, with the Mg-CaP group demonstrating superior performance. Therefore, both CaP and magnesium-CaP coatings can significantly enhance the osseointegration of three-dimensional-printed porous Ta, thereby increasing the surface bioactivity. Overall, the present study introduces an innovative approach for the biofunctionalization of SLM porous Ta, aiming to enhance its suitability as a bone implant material.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:10

Enthalten in:

ACS biomaterials science & engineering - 10(2024), 3 vom: 11. März, Seite 1435-1447

Sprache:

Englisch

Beteiligte Personen:

Xu, Jianfeng [VerfasserIn]
Wu, Di [VerfasserIn]
Ge, Bing [VerfasserIn]
Li, Maoyuan [VerfasserIn]
Yu, Haiyu [VerfasserIn]
Cao, Fang [VerfasserIn]
Wang, Weidan [VerfasserIn]
Zhang, Qing [VerfasserIn]
Yi, Pinqiao [VerfasserIn]
Wang, Haiyao [VerfasserIn]
Song, Liqun [VerfasserIn]
Liu, Lingpeng [VerfasserIn]
Li, Junlei [VerfasserIn]
Zhao, Dewei [VerfasserIn]

Links:

Volltext

Themen:

6424HBN274
97Z1WI3NDX
CaP coating
Calcium Phosphates
Calcium phosphate
D1JT611TNE
Hydrothermal treatment
I38ZP9992A
Journal Article
Magnesium
Mg2+
Osteogenesis
Porous Ta
Tantalum
Titanium

Anmerkungen:

Date Completed 12.03.2024

Date Revised 12.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acsbiomaterials.3c01503

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36819695X