Research on super-hydrophobic surface of biodegradable magnesium alloys used for vascular stents

Wan, Peng; Wu, Jingyao; Tan, Lili; Zhang, Bingchun; Yang, Kè

doi:10.1016/j.msec.2013.03.017

Cited by 66 publications

(30 citation statements)

References 29 publications

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“…This is fulfilled at potentials of ±120 mV away from E corr . The irregularity of the shape of (I) vs. (E) curves, found in various publications [20,22,[31][32][33][34][35][36], depend on the variation of hydrogen evolution between immediately strong and delayed. The creation of MgH 2 [30,32,37], appropriate to reaction (5), is an additional complication for the experimental estimation of i corr and consequently for CR.…”

Section: Voltammetry or Potentiodynamic Polarisation (Pdp)mentioning

confidence: 91%

Electrochemical techniques for assessment of corrosion behaviour of Mg and Mg-alloys

Müeller

2015

BioNanoMaterials

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During the recent years different reviews have been published focusing on several aspects: the challenge of application of Mg-alloys as biomaterials, manufacturing procedure and its influence on the corrosion stability, application of different techniques to produce protection layers, coatings onto the surface of Mg-bulk devices, the influence of various elements applied as alloying part for Mg in order to change the mechanical as well as the electrochemical properties. The aim of this paper is to review and to comment electrochemical techniques applied to assess the corrosion/degradation behaviour of Mg and Mg-alloys for biomedical application.

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Section: Voltammetry or Potentiodynamic Polarisation (Pdp)mentioning

confidence: 91%

Electrochemical techniques for assessment of corrosion behaviour of Mg and Mg-alloys

Müeller

2015

BioNanoMaterials

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“…Platelet adhesion to heart‐valve surfaces has also been reduced through the use of superhydrophobic hierarchically rough PDMS surfaces (static contact angle 164°) . Magnesium is biodegradable and can be made superhydrophobic by a simple sulfuric acid and hydrogen peroxide etching process and stearic acid surface treatment . Reduction by a factor of 20 in platelet adhesion was observed by applying a superhydrophobic treatment on a magnesium alloy that is used for vascular stents.…”

Section: Recent Examples Of Blood‐repellent Surfacesmentioning

confidence: 99%

Superhydrophobic Blood‐Repellent Surfaces

et al. 2018

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Superhydrophobic surfaces repel water and, in some cases, other liquids as well. The repellency is caused by topographical features at the nano-/microscale and low surface energy. Blood is a challenging liquid to repel due to its high propensity for activation of intrinsic hemostatic mechanisms, induction of coagulation, and platelet activation upon contact with foreign surfaces. Imbalanced activation of coagulation drives thrombogenesis or formation of blood clots that can occlude the blood flow either on-site or further downstream as emboli, exposing tissues to ischemia and infarction. Blood-repellent superhydrophobic surfaces aim toward reducing the thrombogenicity of surfaces of blood-contacting devices and implants. Several mechanisms that lead to blood repellency are proposed, focusing mainly on platelet antiadhesion. Structured surfaces can: (i) reduce the effective area exposed to platelets, (ii) reduce the adhesion area available to individual platelets, (iii) cause hydrodynamic effects that reduce platelet adhesion, and (iv) reduce or alter protein adsorption in a way that is not conducive to thrombus formation. These mechanisms benefit from the superhydrophobic Cassie state, in which a thin layer of air is trapped between the solid surface and the liquid. The connections between water- and blood repellency are discussed and several recent examples of blood-repellent superhydrophobic surfaces are highlighted.

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“…The hemolysis test has been performed using whole blood, whereas the evaluation of platelet compatibility has been conducted using the platelet rich plasma in terms of the number of the platelets adhering onto the alloys and the platelet morphology. [6,[11][12][13] In addition, some studies have reported appropriate methodologies to improve the platelet compatibility of the magnesium alloy surface. [14,15] Conversely, studies on the blood compatibility of Mg alloys with other biocomponents using whole blood have rarely been reported in the literature.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Study on the blood compatibility and biodegradation properties of magnesium alloys

Mochizuki¹,

Kaneda²

2015

Materials Science and Engineering: C

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Research on super-hydrophobic surface of biodegradable magnesium alloys used for vascular stents

Cited by 66 publications

References 29 publications

Electrochemical techniques for assessment of corrosion behaviour of Mg and Mg-alloys

Electrochemical techniques for assessment of corrosion behaviour of Mg and Mg-alloys

Superhydrophobic Blood‐Repellent Surfaces

Study on the blood compatibility and biodegradation properties of magnesium alloys

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