NiTi shape-memory alloy oxidized in low-temperature plasma with carbon coating: Characteristic and a potential for cardiovascular applications

Witkowska, Justyna; Sowińska, Agnieszka; Czarnowska, E.; Płociński, Tomasz; Borowski, T.; Wierzchoń, T.

doi:10.1016/j.apsusc.2017.01.145

Cited by 18 publications

(18 citation statements)

References 34 publications

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“…Assessment of blood platelet adhesion, aggregation, and activation was performed with the use of human platelet-rich plasma (PRP), obtained from the blood of healthy donors, according to method described in ref. [ 22 ]. The prepared specimens were tested under a scanning electron microscope (JSM-7600F, JEOL) under an acceleration voltage of 5 kV in LEI mode (lower secondary electron image).…”

Section: Methodsmentioning

confidence: 99%

“…Our previous studies showed that glow-discharge treatments in low-temperature plasma such as nitriding [ 21 ], oxidation [ 22 ] or oxynitriding [ 23 ], allow for the formation of surface layers that increase the corrosion resistance and biocompatibility of NiTi. This is due to the high chemical affinity of titanium to oxygen or atomic nitrogen.…”

Section: Introductionmentioning

confidence: 99%

“…This is due to the high chemical affinity of titanium to oxygen or atomic nitrogen. What is more, the RF CVD process enables the formation of an amorphous carbon coating on the surface, which gives the material athrombogenic properties—a feature necessary when used in contact with blood [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

“…For this reason we decided to enhance the previously described methods of hybrid surface treatment and combine low-temperature oxidation under glow-discharge conditions with ion beam-assisted deposition, which produces a silver nanoparticle-enriched amorphous carbon coating on top of the titanium oxide layer. In the first stage of research, we decided to examine this surface layer in the same scope as in our previous studies [ 22 , 23 ] to know if it met the basic properties required of materials that come in contact with blood.…”

Section: Introductionmentioning

confidence: 99%

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Structure and properties of composite surface layers produced on NiTi shape memory alloy by a hybrid method

Witkowska

Sowińska

Czarnowska

et al. 2018

J Mater Sci: Mater Med

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A hybrid process that combines oxidation under glow-discharge conditions with ion beam-assisted deposition (IBAD) has been applied to mechanically polished NiTi shape memory alloy in order to produce composite surface layers consisting of a TiO2 layer and an external carbon coating with an addition of silver. The produced surface layers a-C(Ag) + TiO2 type have shown increased surface roughness, improved corrosion resistance, altered wettability, and surface free energy, as well as reduced platelet adhesion, aggregation, and activation in comparison to NiTi alloy in initial state. Such characteristics can be of great benefit for cardiac applications.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structure and properties of composite surface layers produced on NiTi shape memory alloy by a hybrid method

Witkowska

Sowińska

Czarnowska

et al. 2018

J Mater Sci: Mater Med

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“…These can be organized into four types: functional carbon-based nanomaterials (CBNs), metal-based nanomaterials, coatings, electronics and medical applications. [22][23][24] Metal based nanomaterials include quantum dots, nanosilver, nanogold and metal oxides such as titanium dioxide and zinc oxide.…”

Section: Importance Of Nanoscience and Nanotechnologymentioning

confidence: 99%

Surface chemistry of metal oxide nanoparticles in biological and environmental media of varying pH

Minshid¹,

Naser²

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for their interest in my research and the time and effort they have spent in providing comments to improve the quality of my work. Many collaborators and colleagues have provided helpful feedback and friendly encouragement. A special word of thanks should be given to all present and past former Grassian and Larsen group members for their kind support given to me, as well as for sharing their own expertise during group meetings. We really spent a good time together guys! I would also like to extend my heartfelt gratitude to all the faculty members in the Department of Chemistry, University of Iowa, for paving me the path to my graduate studies. v I would also thank Janet Kugley for her kind words and valuable support. A note of thank you to the Department of Chemistry IT staff especially Peter Franke, Bryan Ringen, and Frank Turner for their kind assistance provided especially with machine and software issues I face during my work on my research. A special thanks to Central Microscopy Research Facility (CMRF) at the University of Iowa staff member especially Randy Nessler for his support in instrumentation and technical assistance on my research. I would also thankful to The University of Iowa Intensive English Program (IIEP) through which I was able to learn about intensive English classes, cultural, social, and academic orientation in a supportive and collaborative environment. I thank Maureen Burke and many instructors especially Alicia Ambler, Crissa Stephens (we graduated ix

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Stimuli‐Responsive Smart Materials for Additive Manufacturing

Pinho¹,

Piedade²

2022

Nanotechnology‐Based Additive Manufacturing

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NiTi shape-memory alloy oxidized in low-temperature plasma with carbon coating: Characteristic and a potential for cardiovascular applications

Cited by 18 publications

References 34 publications

Structure and properties of composite surface layers produced on NiTi shape memory alloy by a hybrid method

Structure and properties of composite surface layers produced on NiTi shape memory alloy by a hybrid method

Surface chemistry of metal oxide nanoparticles in biological and environmental media of varying pH

Stimuli‐Responsive Smart Materials for Additive Manufacturing

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