Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (2): 20210644.doi: 10.7503/cjcu20210644
• Article: Inorganic Chemistry • Previous Articles Next Articles
Received:
2021-09-06
Online:
2022-02-10
Published:
2021-10-13
Contact:
HUANG Ziyang
E-mail:zyhuang@fjnu.edu.cn
Supported by:
CLC Number:
TrendMD:
ZHAO Mengyang, HUANG Ziyang. Preparation and in vitro Bioactivity of HA/CuO/SrCO3 Gradiently Composite Coating[J]. Chem. J. Chinese Universities, 2022, 43(2): 20210644.
Element | Before sintering | After sintering | ||
---|---|---|---|---|
w(Ele)(%) | x(Ele)(%) | w(Ele)(%) | x(Ele)(%) | |
C | 5.00 | 9.73 | 0.48 | 1.03 |
N | 2.56 | 4.27 | 0.03 | 0.05 |
O | 34.85 | 50.90 | 32.42 | 52.70 |
P | 17.21 | 12.98 | 20.32 | 17.03 |
Ca | 35.52 | 20.75 | 42.67 | 27.89 |
Cu | 0.62 | 0.23 | 0.84 | 0.34 |
Sr | 4.24 | 1.13 | 3.24 | 0.95 |
Table 1 Element contents of HA/CS/CuO/SrCO3 coatings before and after sintering treatment*
Element | Before sintering | After sintering | ||
---|---|---|---|---|
w(Ele)(%) | x(Ele)(%) | w(Ele)(%) | x(Ele)(%) | |
C | 5.00 | 9.73 | 0.48 | 1.03 |
N | 2.56 | 4.27 | 0.03 | 0.05 |
O | 34.85 | 50.90 | 32.42 | 52.70 |
P | 17.21 | 12.98 | 20.32 | 17.03 |
Ca | 35.52 | 20.75 | 42.67 | 27.89 |
Cu | 0.62 | 0.23 | 0.84 | 0.34 |
Sr | 4.24 | 1.13 | 3.24 | 0.95 |
Coating | Self?corrosion potential, Vcorr/V(vs. SCE) | Self?corrosion current density, Jcorr/(nA·cm-2) |
---|---|---|
HA | -0.208 | 5.15 |
HA/CuO/SrCO3(EPD) | -0.095 | 1.61 |
HA/CuO/SrCO3(ZE/EPD) | 0.275 | 1.29 |
Table 2 Self-corrosion potentials and self-corrosion current densities of three coatings in H-SBF
Coating | Self?corrosion potential, Vcorr/V(vs. SCE) | Self?corrosion current density, Jcorr/(nA·cm-2) |
---|---|---|
HA | -0.208 | 5.15 |
HA/CuO/SrCO3(EPD) | -0.095 | 1.61 |
HA/CuO/SrCO3(ZE/EPD) | 0.275 | 1.29 |
Fig.12 Experiments of bacteriostatic rate of HA/CuO/SrCO3 coatings powder(A, B) Escherichia coli; (C, D) stayhylococcus aureus; (A, C) gradient coating; (B, D) control.
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