Novel trends and recent progress on preparation methods of biodegradable metallic foams for biomedicine: a review

Oriňáková, Renáta; Gorejová, Radka; Králová, Zuzana Orságová; Petráková, Martina; Oriňák, Andrej

doi:10.1007/s10853-021-06163-y

Cited by 20 publications

(13 citation statements)

References 121 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zhang [46] found E corr of pure Fe to be −0.51 V, but more negative corrosion potentials (from −0.718 to −0.748) were also reported [50,51]. This finding emphasizes the influence of the preparation method on the corrosion properties of biodegradable metals [33]. Electrochemical behavior of the mixed Fe-Zn sample resembled the behavior of pure zinc which can be attributed to the effect of cathodic protection of iron by zinc where zinc acted as a sacrificial anode [52].…”

Section: Discussionmentioning

confidence: 84%

“…When several micropores combined, longitudinal cracks appeared (Figure 3f, white arrows). These defects may play an important role in the material degradation behavior, and it is known that their influence is also important besides the material composition and design [33]. Their development after further heat treatment, which must be done before use in vivo, should be therefore thoroughly studied.…”

Section: Fe Zn and Fe-zn Powders And Compressed Samples Characterizationmentioning

confidence: 99%

See 1 more Smart Citation

Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

et al. 2021

Self Cite

View full text Add to dashboard Cite

Powder metallurgy is one of the most prevalent ways for metallic degradable materials preparation. Knowledge of the properties of initial powders used during this procedure is therefore of great importance. Two different metals, iron and zinc, were selected and studied in this paper due to their promising properties in the field of biodegradable implants. Raw powders were studied using scanning electron microscopy (SEM) coupled with energy dispersive spectrometry (EDX). Powders (Fe, Zn and Fe-Zn in a weight ratio of 1:1) were then compressed at the pressure of 545 MPa to the form of pellets with a diameter of 1.7 cm. Surface morphology and degradation behavior in the Hanks´ solution were studied and evaluated. Electrochemical polarization tests along with the static immersion tests carried out for 21 days were employed for corrosion behavior characterization. The highest corrosion rate was observed for pure Zn powder followed by the Fe-Zn and Fe, respectively. A mixed Fe-Zn sample showed similar properties as pure zinc with no signs of iron degradation after 21 days due to the effect of galvanic protection secured by the zinc acting as a sacrificial anode.

show abstract

Section: Discussionmentioning

confidence: 84%

Section: Fe Zn and Fe-zn Powders And Compressed Samples Characterizationmentioning

confidence: 99%

Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…This review focuses on scaffolds made with polymers, glasses, ceramics, and polymer/glass or ceramic composite materials. We have not reviewed the literature on metallic scaffolds because the techniques used to make such scaffolds are very different [84,85] ; the interested reader can find several good reviews on porous metallic scaffolds. [85][86][87] Also, multiscale porosity scaffolds can include scaffolds with nano-, micro-, and/or macropores.…”

Section: Scope Of This Reviewmentioning

confidence: 99%

“…We have not reviewed the literature on metallic scaffolds because the techniques used to make such scaffolds are very different [84,85] ; the interested reader can find several good reviews on porous metallic scaffolds. [85][86][87] Also, multiscale porosity scaffolds can include scaffolds with nano-, micro-, and/or macropores. Many previous review articles discussed scaffolds, including macro-and nanopores only, to highlight the importance of nanoscale structures.…”

Section: Scope Of This Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Glass, Ceramic, Polymeric, and Composite Scaffolds with Multiscale Porosity for Bone Tissue Engineering

Jeyachandran

Cerruti

2023

Adv Eng Mater

View full text Add to dashboard Cite

Porosity affects performance of scaffolds for bone tissue engineering both in vitro and in vivo. Macropores (i.e., pores with a diameter >100 μm) are essential for cellular infiltration; micropores (i.e., pores with a diameter of 1–10 μm) promote cell adhesion and facilitate nutrient absorption. Scaffolds containing both macropores and micropores exploit the advantages of both pore sizes and have excellent osteogenic properties. Nanopores (i.e., pores with a diameter of 1–50 nm) can be included as well, to improve cell–material interactions by further enhancing the surface area of the scaffold. This article reviews fabrication techniques and properties of scaffolds with multiscale porosity, focusing on glass, ceramic, polymeric, and composite scaffolds. After discussing the structure of bone and how it inspired scaffolds for bone tissue engineering, pore nomenclature is introduced. Then, the techniques used to induce multiscale porosity, the nature of the pores created, and the effects of scaffold porosity on mechanical properties and biological activity of the scaffolds are discussed. The review concludes by providing an outlook for this field, including advancements that are made possible by computational modeling and artificial intelligence.

show abstract

Mechanical and Degradation Behavior of Zinc‐Based Biodegradable Metal Foams

Kádár,

Gorejová,

Kubelka

et al. 2024

Adv Eng Mater

Self Cite

View full text Add to dashboard Cite

Zinc has gained interest as a biodegradable material due to its adequate degradation behavior under physiological conditions and acceptable biocompatibility. However, during the use of zinc as a degradable orthopedical implant, the mechanical properties are expected to change while the implant needs to maintain its function and mechanical support for 12‐24 months, with the load gradually transferred from the degrading implant to the healing bone. For such investigation, six different kinds of open‐cell zinc foams are fabricated by a modified investment casting method displaying different pore densities and strut thicknesses. Compressive properties and corrosion behavior in simulated body fluids are studied to determine the map of the most relevant parameters that influence the degradation properties. After 4 weeks of immersion in Hank’s solution, changes in the slope in the “plateau” region and strain localization are observed. These changes can be explained by supposing microcrack propagation into the depth of the struts due to the progressing corrosion attack.This article is protected by copyright. All rights reserved.

show abstract

Novel trends and recent progress on preparation methods of biodegradable metallic foams for biomedicine: a review

Cited by 20 publications

References 121 publications

Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

Glass, Ceramic, Polymeric, and Composite Scaffolds with Multiscale Porosity for Bone Tissue Engineering

Mechanical and Degradation Behavior of Zinc‐Based Biodegradable Metal Foams

Contact Info

Product

Resources

About