Biological Property Investigation of Nitinol Surface Implanted with Tantalum

Ling WU; Ji TAN; Shi QIAN; Naijian GE; Xuanyong LIU

doi:10.15541/jim20220140

Journals >Journal of Inorganic Materials >Volume 37 >Issue 11 >Page 1217 > Article

Journal of Inorganic Materials
Vol. 37, Issue 11, 1217 (2022)

Biological Property Investigation of Nitinol Surface Implanted with Tantalum

Ling WU^1、2, Ji TAN¹, Shi QIAN^1、3, Naijian GE⁴, and Xuanyong LIU^{1、2、3、*}

Author Affiliations

¹1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

²2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, Beijing 100049, China

³3. Cixi Center of Biomaterials Surface Engineering, Ningbo 315300, China

⁴4. Eastern Hepatobilialy Surgery Hospital, Naval Medical University, Shanghai 200438, China

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DOI: 10.15541/jim20220140 Cite this Article

Ling WU, Ji TAN, Shi QIAN, Naijian GE, Xuanyong LIU. Biological Property Investigation of Nitinol Surface Implanted with Tantalum[J]. Journal of Inorganic Materials, 2022, 37(11): 1217 Copy Citation Text

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1. SEM images of surface morphologies of different samples

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2. XRD patterns of different samples

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3. (a) XPS full spectra and (b-d) Ta4f high-resolution XPS spectra detected from samples’ surfaces

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4. Contact angles of various samples

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5. Polarization curves of various samples in physiological saline.

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6. Fluorescent images of HUVECs adhered to various samples at 1, 4, and 24 h

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7. Live (green)/dead (red) cell staining fluorescent images of HUVECs seeded on samples for 4 d

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8. Cell viability of HUVECs cultured on sample surfaces for 1, 4 and 7 d

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9. (a) SEM images of adhered platelets on sample surfaces and (b) hemolysis rate of various samples

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Parameters	Target	Cathodic arc
Voltage pulse duration/μs	500	800
Pulsing frequency/Hz	10	10
Implantation voltage/kV	-15	-
Implantation time/min	30, 60, 120	-

Table 1. Process parameters of tantalum plasma immersion ion implantation and deposition

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Sample	E_corr/V	I_corr/(A∙cm^-2)
NiTi	-0.288	5.65×10^-6
30Ta-NiTi	-0.288	6.37×10^-6
60Ta-NiTi	-0.261	6.69×10^-6
120Ta-NiTi	-0.251	6.62×10^-6

Table 2. Corrosion potentials and corrosion currents of various samples

Ling WU, Ji TAN, Shi QIAN, Naijian GE, Xuanyong LIU. Biological Property Investigation of Nitinol Surface Implanted with Tantalum[J]. Journal of Inorganic Materials, 2022, 37(11): 1217

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