<trans-title xml:lang="en">Biological Property Investigation of Nitinol Surface Implanted with Tantalum</trans-title>

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

doi:10.15541/jim20220140

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

Biological Property Investigation of Nitinol Surface Implanted with Tantalum

Ling WU1...2, Ji TAN1, Shi QIAN1,3, Naijian GE4, and Xuanyong LIU1,23,* |Show fewer author(s)

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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Figures & Tables(11)

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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Table 1. Process parameters of tantalum plasma immersion ion implantation and deposition
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Table 1. Process parameters of tantalum plasma immersion ion implantation and deposition
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 2. Corrosion potentials and corrosion currents of various samples
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Table 2. Corrosion potentials and corrosion currents of various samples
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

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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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