Research Progress on Laser Powder Bed Fusion Additive Manufacturing of Zinc Alloys DOI Open Access

Fuxiang Meng,

Yulei Du

Materials, Journal Year: 2024, Volume and Issue: 17(17), P. 4309 - 4309

Published: Aug. 30, 2024

Zinc, along with magnesium and iron, is considered one of the most promising biodegradable metals. Compared pure Zn exhibits poor mechanical properties, despite its mild biological corrosion behavior beneficial biocompatibility. Laser powder bed fusion (LPBF), unlike traditional manufacturing techniques, has capability to rapidly manufacture near-net-shape components. At present, although combination LPBF made great progress, it still in infancy. Element loss porosity are common processing problems for Zn, mainly due evaporation during melting under a high-energy beam. The formation quality properties final material closely related alloy composition, design processing. This work reviews state research future perspective on zinc from comprehensive assessments such as characteristics, processing, quality, microstructure, properties. effects process parameters introduced. mechanical, corrosion, biocompatibility their test methodologies microstructure analyzed detail. practical medical application Finally, current status summarized together suggested directions advancing knowledge about Zn.

Language: Английский

Revealing anisotropic mechanisms in mechanical and degradation properties of zinc fabricated by laser powder bed fusion additive manufacturing DOI
Zhi Dong, Changjun Han, Guoqiang Liu

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 214, P. 87 - 104

Published: July 16, 2024

Language: Английский

Citations

36
Layered co-continuous structure in bone scaffold fabricated by laser additive manufacturing for enhancing electro-responsive shape memory properties DOI Creative Commons
Cijun Shuai, Wentao Xu,

Haofan He

et al.

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 30, P. 61 - 69

Published: March 11, 2024

Porous scaffold based on electro-responsive shape memory polymers (ESMPs) possesses great potential applications in minimally invasive surgery for bone defect repair because it provides the ability remote control and internal heating. However, it's difficult to obtain co-continuous structure achieving excellent properties. In this study, layered with thermoplastic polyurethane (TPU) loaded multi-walled carbon nanotubes (MWCNTs) (referred as cTPU) layer l-polylactic acid (PLLA) alternate stacking was obtained via layer-by-layer fabrication technology, porous fabricated selective laser sintering (SLS). The thermal electrical properties of scaffolds different contents MWCNT were evaluated by dynamic mechanical analysis (DMA) U-bending experiments. results indicated that improved phase continuity confined MWCNTs one side, enhancing electrically driven 1.5 wt% achieved fixed recovery rates 95.6% 90.2%, respectively. With further increasing content, decreased due agglomeration cTPU phase, which affected cTPU. DMA confirmed good scaffold, cell culture experiment demonstrated cytocompatibility attachment growth. This work a feasible method fabricate structure, exhibits repair.

Language: Английский

Citations

34
Mechanically propelled ion exchange regulates metal/bioceramic interface characteristics to improve the corrosion resistance of Mg composite for orthopedic applications DOI
Wenjing Yang,

Quanyi Tong,

Chongxian He

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(13), P. 23124 - 23134

Published: April 3, 2024

Language: Английский

Citations

33
Reactive Oxygen Species Responsive Nitric Oxide Release for Enhanced Photodynamic Antibacterial Therapy of Scaffolds DOI
Fangwei Qi, Wei Liu, Zikang Li

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(11), P. 6581 - 6593

Published: May 24, 2024

Photodynamic therapy (PDT) presented tremendous potential for combating implant-related infections, but its antibacterial efficacy was constrained by rapid electron–hole pair recombination of photosensitizers and barrier action a dense biofilm on reactive oxygen species (ROS). Herein, cascade phototherapeutic AuKN-LA nanosystem constructed depositing Au nanoparticles l-arginine (LA) potassium niobate (KN) photosensitizer. In the nanosystem, with lower Fermi levels could capture photogenerated electrons thus suppress to enhance ROS generation. Especifically, trigger generated release nitric oxide (NO) destroy biofilm, thereby facilitating entry ROS. Furthermore, NO itself possessed activity, which form synergy PDT. Then, introduced into poly(l-lactic acid) scaffolds fabricated laser additive manufacturing. Photoelectrochemical analysis proved that separation improved, significantly increasing detection crystal violet staining showed effectively remove sustainably releasing under light irradiation. As consequence, exhibited excellent rates 98.7% 99.2% against E. coli S. aureus, respectively, disrupting bacterial cell membranes causing leakage nucleic acid molecules proteins.

Language: Английский

Citations

30
Defect engineering synergistically boosts the catalytic activity of Fe-MoOv for highly efficient breast mesh antitumor therapy DOI
Wenjing Yang,

Chuanyin Zhou,

Chongxian He

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 260 - 271

Published: Aug. 25, 2024

Language: Английский

Citations

29
Magnetostrictive strain-sensitivity synergy for laser-beam powder bed fusion processed Fe81Ga19 alloys by magnetic field annealing DOI Creative Commons
Xiong Yao, Desheng Li, Chengde Gao

et al.

Advanced Powder Materials, Journal Year: 2024, Volume and Issue: 3(5), P. 100216 - 100216

Published: July 9, 2024

Magnetostrictive Fe–Ga alloys have been demonstrated potentialities for numerous applications, whereas, suffering a tradeoff between large magnetostrictive strain and high sensitivity. Herein, bulk polycrystalline Fe81Ga19 were prepared by laser-beam powder bed fusion (LPBF) then annealed in magnetic field manipulating the comprehensive properties. Results indicate that <001> oriented grains are developed LPBF-prepared due to temperature gradient. After annealing (MFA), domains within gradually transformed into well-arranged stripe domains, especially, flat smooth 90° established at 2600 ​Oe. As result, induced orientation contributed an improved effective anisotropy constant (57.053 ​kJ/m3), leading enhanced of 92 ​ppm. Moreover, MFA-treated also displayed sensitivity (0.097 ​ppm/Oe) owing domain structures low dislocation densities, demonstrating fruitful strain-sensitivity synergy. In addition, good dynamic response compressive yield strength observed alloys. This work demonstrates LPBF MFA might be attractive strategy resolve sensitivity, providing basis preparation high-performance materials.

Language: Английский

Citations

23
Engineering a wirelessly self-powered neural scaffold based on primary battery principle to accelerate nerve cell differentiation DOI
Huixing Li,

Xiong Shuai,

Yanyan Chen

et al.

Colloids and Surfaces B Biointerfaces, Journal Year: 2025, Volume and Issue: 249, P. 114521 - 114521

Published: Jan. 14, 2025

Language: Английский

Citations

6
Reduced graphene oxide-mediated electron-hole separation using titanium dioxide increases the photocatalytic antibacterial activity of bone scaffolds DOI
Pei Feng, Haifeng Tian, Feng Yang

et al.

Bio-Design and Manufacturing, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Language: Английский

Citations

5
Multifactorial impacts of B-doping on Fe81Ga19 alloys prepared by laser-beam powder bed fusion: Microstructure, magnetostriction, and osteogenesis DOI
Chengde Gao,

Liyuan Wang,

Youwen Deng

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 205, P. 14 - 26

Published: April 24, 2024

Language: Английский

Citations

14
Shape/properties collaborative intelligent manufacturing of artificial bone scaffold: structural design and additive manufacturing process DOI
Pei Feng, Lingxi Liu, Feng Yang

et al.

Biofabrication, Journal Year: 2024, Volume and Issue: 17(1), P. 012005 - 012005

Published: Nov. 8, 2024

Abstract Artificial bone graft stands out for avoiding limited source of autograft as well susceptibility to infection allograft, which makes it a current research hotspot in the field defect repair. However, traditional design and manufacturing method cannot fabricate scaffold that mimics complicated bone-like shape with interconnected porous structure multiple properties akin human natural bone. Additive manufacturing, can achieve implant’s tailored external contour controllable fabrication internal microporous structure, is able form almost any designed via layer-by-layer process. As additive promising building artificial scaffold, only combining excellent structural appropriate process produce ideal biological mechanical properties. In this article, we sum up analyze state art methods realize shape/properties collaborative intelligent manufacturing. Scaffold be mainly classified into based on unit cells whole while basic 3D bioprinting are recommended suitable fabrication. The challenges future perspectives manufactured also discussed.

Language: Английский

Citations

11