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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b03699
|2 doi
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|a pubmed24n0851.xml
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|a (NLM)26652048
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Ning, Chengyun
|e verfasserin
|4 aut
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| 245 |
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|a Influence of Surrounding Cations on the Surface Degradation of Magnesium Alloy Implants under a Compressive Pressure
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 16.09.2016
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|a Date Revised 13.11.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The effect of cations in the surrounding solutions on the surface degradation of magnesium alloys, a well-recognized biodegradable biomaterial, has been neglected compared with the effect of anions in the past. To better simulate the compressive environment where magnesium alloys are implanted into the body as a cardiovascular stent, a device is designed and employed in the test so that a pressure, equivalent to the vascular pressure, can be directly applied to the magnesium alloy implants when the alloys are immersed in a medium containing one of the cations (K(+), Na(+), Ca(2+), and Mg(2+)) found in blood plasma. The surface degradation behaviors of the magnesium alloys in the immersion test are then investigated using hydrogen evolution, mass loss determination, electron microscopy, pH value, and potentiodynamic measurements. The cations are found to promote the surface degradation of the magnesium alloys with the degree decreased in the order of K(+) > Na(+) > Ca(2+) > Mg(2+). The possible mechanism of the effects of the cations on the surface degradation is also discussed. This study will allow us to predict the surface degradation of magnesium alloys in the physiological environment and to promote the further development of magnesium alloys as biodegradable biomaterials
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Alloys
|2 NLM
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|a Cations
|2 NLM
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|a Magnesium
|2 NLM
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|a I38ZP9992A
|2 NLM
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| 700 |
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|a Zhou, Lei
|e verfasserin
|4 aut
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|a Zhu, Ye
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Ying
|e verfasserin
|4 aut
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| 700 |
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|a Yu, Peng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Shuangying
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Tianrui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Weiping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tan, Guoxin
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Yingjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mao, Chuanbin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 31(2015), 50 vom: 22. Dez., Seite 13561-70
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:31
|g year:2015
|g number:50
|g day:22
|g month:12
|g pages:13561-70
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|u http://dx.doi.org/10.1021/acs.langmuir.5b03699
|3 Volltext
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