Publications
1.
Orrego, Santiago; Chen, Zhezhi; Krekora, Urszula; Hou, Decheng; Jeon, Seung‐Yeol; Pittman, Matthew; Montoya, Carolina; Chen, Yun; Kang, Sung Hoon
Bioinspired Materials with Self‐Adaptable Mechanical Properties Journal Article
In: Advanced Materials, 2020.
@article{Orrego2020,
title = {Bioinspired Materials with Self‐Adaptable Mechanical Properties},
author = {Santiago Orrego and Zhezhi Chen and Urszula Krekora and Decheng Hou and Seung‐Yeol Jeon and Matthew Pittman and Carolina Montoya and Yun Chen and Sung Hoon Kang},
url = {https://onlinelibrary.wiley.com/doi/full/10.1002/adma.201906970},
doi = {https://doi.org/10.1002/adma.201906970},
year = {2020},
date = {2020-04-17},
journal = {Advanced Materials},
abstract = {Natural structural materials, such as bone, can autonomously modulate their mechanical properties in response to external loading to prevent failure. These material systems smartly control the addition/removal of material in locations of high/low mechanical stress by utilizing local resources guided by biological signals. On the contrary, synthetic structural materials have unchanging mechanical properties limiting their mechanical performance and service life. Inspired by the mineralization process of bone, a material system that adapts its mechanical properties in response to external mechanical loading is reported. It is found that charges from piezoelectric scaffolds can induce mineralization from surrounding media. It is shown that the material system can adapt to external mechanical loading by inducing mineral deposition in proportion to the magnitude of the stress and the resulting piezoelectric charges. Moreover, the mineralization mechanism allows a simple one‐step route for fabricating functionally graded materials by controlling the stress distribution along the scaffold. The findings can pave the way for a new class of self‐regenerating materials that reinforce regions of high stress or induce deposition of minerals on the damaged areas from the increase in mechanical stress to prevent/mitigate failure. It is envisioned that the findings can contribute to addressing the current challenges of synthetic materials for load‐bearing applications from self‐adaptive capabilities.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Natural structural materials, such as bone, can autonomously modulate their mechanical properties in response to external loading to prevent failure. These material systems smartly control the addition/removal of material in locations of high/low mechanical stress by utilizing local resources guided by biological signals. On the contrary, synthetic structural materials have unchanging mechanical properties limiting their mechanical performance and service life. Inspired by the mineralization process of bone, a material system that adapts its mechanical properties in response to external mechanical loading is reported. It is found that charges from piezoelectric scaffolds can induce mineralization from surrounding media. It is shown that the material system can adapt to external mechanical loading by inducing mineral deposition in proportion to the magnitude of the stress and the resulting piezoelectric charges. Moreover, the mineralization mechanism allows a simple one‐step route for fabricating functionally graded materials by controlling the stress distribution along the scaffold. The findings can pave the way for a new class of self‐regenerating materials that reinforce regions of high stress or induce deposition of minerals on the damaged areas from the increase in mechanical stress to prevent/mitigate failure. It is envisioned that the findings can contribute to addressing the current challenges of synthetic materials for load‐bearing applications from self‐adaptive capabilities.
Note: Send e-mail to Prof. Kang at [email protected] if you need a pdf file of the papers below.
2020
Orrego, Santiago; Chen, Zhezhi; Krekora, Urszula; Hou, Decheng; Jeon, Seung‐Yeol; Pittman, Matthew; Montoya, Carolina; Chen, Yun; Kang, Sung Hoon
Bioinspired Materials with Self‐Adaptable Mechanical Properties Journal Article
In: Advanced Materials, 2020.
Abstract | Links | BibTeX | Tags: adaptive, Bio-Inspired, bio-inspired science and engineering, biomaterial, mechanics of soft materials and structures, mineral, multifunctional material, piezoelectric, porous structure, regeneration
@article{Orrego2020,
title = {Bioinspired Materials with Self‐Adaptable Mechanical Properties},
author = {Santiago Orrego and Zhezhi Chen and Urszula Krekora and Decheng Hou and Seung‐Yeol Jeon and Matthew Pittman and Carolina Montoya and Yun Chen and Sung Hoon Kang},
url = {https://onlinelibrary.wiley.com/doi/full/10.1002/adma.201906970},
doi = {https://doi.org/10.1002/adma.201906970},
year = {2020},
date = {2020-04-17},
journal = {Advanced Materials},
abstract = {Natural structural materials, such as bone, can autonomously modulate their mechanical properties in response to external loading to prevent failure. These material systems smartly control the addition/removal of material in locations of high/low mechanical stress by utilizing local resources guided by biological signals. On the contrary, synthetic structural materials have unchanging mechanical properties limiting their mechanical performance and service life. Inspired by the mineralization process of bone, a material system that adapts its mechanical properties in response to external mechanical loading is reported. It is found that charges from piezoelectric scaffolds can induce mineralization from surrounding media. It is shown that the material system can adapt to external mechanical loading by inducing mineral deposition in proportion to the magnitude of the stress and the resulting piezoelectric charges. Moreover, the mineralization mechanism allows a simple one‐step route for fabricating functionally graded materials by controlling the stress distribution along the scaffold. The findings can pave the way for a new class of self‐regenerating materials that reinforce regions of high stress or induce deposition of minerals on the damaged areas from the increase in mechanical stress to prevent/mitigate failure. It is envisioned that the findings can contribute to addressing the current challenges of synthetic materials for load‐bearing applications from self‐adaptive capabilities.},
keywords = {adaptive, Bio-Inspired, bio-inspired science and engineering, biomaterial, mechanics of soft materials and structures, mineral, multifunctional material, piezoelectric, porous structure, regeneration},
pubstate = {published},
tppubtype = {article}
}
Natural structural materials, such as bone, can autonomously modulate their mechanical properties in response to external loading to prevent failure. These material systems smartly control the addition/removal of material in locations of high/low mechanical stress by utilizing local resources guided by biological signals. On the contrary, synthetic structural materials have unchanging mechanical properties limiting their mechanical performance and service life. Inspired by the mineralization process of bone, a material system that adapts its mechanical properties in response to external mechanical loading is reported. It is found that charges from piezoelectric scaffolds can induce mineralization from surrounding media. It is shown that the material system can adapt to external mechanical loading by inducing mineral deposition in proportion to the magnitude of the stress and the resulting piezoelectric charges. Moreover, the mineralization mechanism allows a simple one‐step route for fabricating functionally graded materials by controlling the stress distribution along the scaffold. The findings can pave the way for a new class of self‐regenerating materials that reinforce regions of high stress or induce deposition of minerals on the damaged areas from the increase in mechanical stress to prevent/mitigate failure. It is envisioned that the findings can contribute to addressing the current challenges of synthetic materials for load‐bearing applications from self‐adaptive capabilities.