3D printing of multifunctional gradient bone scaffolds with programmable component distribution and hierarchical pore structure

Guo, Weiwei; Jiang, Zhaoliang; Zhong, Honghao; Chen, Guopeng; li, Xinde; Yan, Hongru; Zhang, Cheng; Zhao, Li

doi:10.1016/j.compositesa.2022.107361

Cited by 11 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If the feed ratio into the static mixer is continuously varied, smooth gradients in material properties can be generated, ,− which mimic the property gradients found in a wide range of biological structures such as bamboo, bones, and tendons. ,, In these biological materials, variations between soft and stiff regions impart both high strength and toughness, which are typically orthogonal material properties. Graded materials can also increase resistance to interfacial failure between regions with disparate properties, which is a key problem in artificial implants .…”

Section: Static Mixers and Forced Assembly: Multiplying Layersmentioning

confidence: 99%

Nozzle Innovations That Improve Capacity and Capabilities of Multimaterial Additive Manufacturing

McCauley,

Bayles

2024

ACS Eng. Au

View full text Add to dashboard Cite

Multimaterial additive manufacturing incorporates multiple species within a single 3D-printed object to enhance its material properties and functionality. This technology could play a key role in distributed manufacturing. However, conventional layer-by-layer construction methods must operate at low volumetric throughputs to maintain fine feature resolution. One approach to overcome this challenge and increase production capacity is to structure multimaterial components in the printhead prior to deposition. Here we survey four classes of multimaterial nozzle innovations, nozzle arrays, coextruders, static mixers, and advective assemblers, designed for this purpose. Additionally, each design offers unique capabilities that provide benefits associated with accessible architectures, interfacial adhesion, material properties, and even living-cell viability. Accessing these benefits requires trade-offs, which may be mitigated with future investigation. Leveraging decades of research and development of multiphase extrusion equipment can help us engineer the next generation of 3D-printing nozzles and expand the capabilities and practical reach of multimaterial additive manufacturing.

show abstract

Section: Static Mixers and Forced Assembly: Multiplying Layersmentioning

confidence: 99%

Nozzle Innovations That Improve Capacity and Capabilities of Multimaterial Additive Manufacturing

McCauley,

Bayles

2024

ACS Eng. Au

View full text Add to dashboard Cite

show abstract

“…Some examples are Digital Beam Melting (EBM), Laminated object manufacturing (LOM), Selective Laser Sintering (SLS), Digital Light Processing (DLP), Fused deposition modeling (FDM), and Stereolithography (SLA). Recently ceramic based porous structures have been fabricated using an SLA-based 3D printing technique [14][15][16] which has biomedical applications as well [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Surface modification of stereolithography-based 3D printed structures utilizing ultrasonic-atomised sprays

et al. 2023

View full text Add to dashboard Cite

Stereolithography (SLA)-based three-dimensional (3D) printing has become a popular tool for creating experimental models to study the two-phase flow behavior in complex flow structures. The main drawback while implementing such models is the wettability nature of the 3D printed surfaces. As non-geological materials are used while printing the porous designs, the flow mechanics do not follow similar patterns as in the reservoir. This work demonstrates the feasibility of using an SLA-based printing technique to replicate a porous structure. The porosity and pore size values of the 3D print are observed to be very close to that of the porous input image of the rock sample. A simple method to modify the surface characteristics of 3D printed surfaces using an ultrasonic-atomized fine spraying technique is developed. Here a thin layer of CaCO3 is deposited on the 3D printed surface by subjecting it to fine alternate sprays of calcium chloride and sodium carbonate. Thirty cycles of coating are observed to have altered the surface's wettability from neutral to oil-wet, resembling a carbonate reservoir. Graphical abstract Ultrasonic assisted coating of 3D-printed surfaces.

show abstract

3D and 4D Printing in Digital Healthcare

Awad

Basit

2023

AAPS Introductions in the Pharmaceutical Sciences

View full text Add to dashboard Cite

3D printing of multifunctional gradient bone scaffolds with programmable component distribution and hierarchical pore structure

Cited by 11 publications

References 31 publications

Nozzle Innovations That Improve Capacity and Capabilities of Multimaterial Additive Manufacturing

Nozzle Innovations That Improve Capacity and Capabilities of Multimaterial Additive Manufacturing

Surface modification of stereolithography-based 3D printed structures utilizing ultrasonic-atomised sprays

3D and 4D Printing in Digital Healthcare

Contact Info

Product

Resources

About