Abstract:
:Porcupines use their lightweight quills, which are strong enough to support significant compression and flexure loads, for defense. Hystrix, with long and thick quills, belongs to the family of Hystricidae (Old World porcupines), while Erethizon, with smaller quills, belongs to the Erethizontidae family (New World porcupines). The objective of this work is to compare the structure and compressive properties of quills from Hystrix and Erethizon. Both quills have a thin keratinous cortex filled with closed-cell foam that has cell diameters decreasing from the center to the cortex. Hystrix quills have stiffeners that extend from the cortex towards the center. The local buckling strength is larger for Hystrix, and very good agreement is found between the predicted values and the experimental ones for both quills. The foam shows extensive deformation, both tensile and compressive, around the buckled cortex.
journal_name
Acta Biomaterjournal_title
Acta biomaterialiaauthors
Yang W,Chao C,McKittrick Jdoi
10.1016/j.actbio.2012.09.004subject
Has Abstractpub_date
2013-02-01 00:00:00pages
5297-304issue
2eissn
1742-7061issn
1878-7568pii
S1742-7061(12)00432-1journal_volume
9pub_type
杂志文章abstract:UNLABELLED:Small interfering RNAs (siRNAs) are extensively studied due to their promising potential as therapeutic agents for a wide variety of diseases, including cancer. However, efficient delivery of siRNAs to target cells and tissues is problematic due to a lack of suitable delivery vehicles. In this work, we devel...
journal_title:Acta biomaterialia
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更新日期:2015-10-01 00:00:00
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journal_title:Acta biomaterialia
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2018-10-15 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2017-12-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2010.03.021
更新日期:2010-09-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2017.11.020
更新日期:2018-01-15 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2011-09-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2019.07.021
更新日期:2019-09-15 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2015.09.028
更新日期:2015-12-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2009.10.034
更新日期:2010-04-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2018.10.016
更新日期:2018-12-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2009.07.017
更新日期:2010-02-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.05.001
更新日期:2013-08-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2013-11-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2014.05.004
更新日期:2014-08-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章,评审
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更新日期:2020-07-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2020-04-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2020-09-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2020-03-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2015.12.026
更新日期:2016-03-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
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更新日期:2009-09-01 00:00:00
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journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2017.01.003
更新日期:2017-03-01 00:00:00
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journal_title:Acta biomaterialia
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doi:10.1016/j.actbio.2012.05.001
更新日期:2012-09-01 00:00:00