[논문]MoS2 코팅된 치과용 임플란트의 표면특성과 생체적합성

권민기; 이준식; 김미은; 최한철

doi:10.14773/cst.2024.23.1.72

MoS2 코팅된 치과용 임플란트의 표면특성과 생체적합성
Surface Characteristics and Biocompatibility of MoS2-coated Dental Implant 원문보기

Corrosion science and technology, v.23 no.1, 2024년, pp.72 - 81

권민기 (조선대학교 광기술공학과) , 이준식 (조선대학교 생명과학과) , 김미은 (조선대학교 생명과학과) , 최한철 (조선대학교 치과대학)

Abstract ▼ AI-Helper

The Ti-6Al-4V alloy is widely used as an implant material due to its higher fatigue strength and strengthto-weight ratio compared to pure titanium, excellent corrosion resistance, and bone-like properties that promote osseointegration. For rapid osseointegration, the adhesion between the titanium surface and cellular biomolecules is crucial because adhesion, morphology, function, and proliferation are influenced by surface characteristics. Polymeric peptides and similar coating technologies have limited effectiveness, prompting a demand for alternative materials. There is growing interest in 2D nanomaterials, such as MoS2, for good corrosion resistance and antibacterial, and bioactive properties. However, to coat MoS2 thin films onto titanium, typically a low-temperature hydrothermal synthesis method is required, resulting in the synthesis of films with a toxic 1T@2H crystalline structure. In this study, through high-temperature annealing, we transformed them into a non-toxic 2H structure. The implant coating technique proposed in this study has good corrosion resistance and biocompatibility, and antibacterial properties.

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표/그림 (10)

그림 Fig. 1. Synthesis and coating of MoS₂
그림 Fig. 2. (a) SEM image of MoS₂, (b) Magnified image of MoS₂ with TEM, (c) Raman spectrum of MoS₂ without and with thermal annealing
그림 Fig. 3. (a) SEM images, (b) Raman spextrum, and (c) XRD spectrum of coated MoS₂ film on Ti-6Al-4V implant
그림 Fig. 4. V_g and I_d curve of MoS₂ based thin film transistor
그림 Fig. 5. Polarization curves after the potentiodynamic test and AC impedance curves for all specimens in 0.9% NaCl solution at 36.5 ± 1 ºC with equivalent circuits; (b) Nyquist plots, (c) Bode-plots, (d) Bode-frequency plots, and (e) Equivalent circuits for non-MoS₂ coated and MoS₂-coated specimens
표 Table 1. The corrosion parameters for all inspected samples after the potentiodynamic test in 0.9% NaCl solution at 36.5 ± 1 °C
표 Table 2. The corrosion parameters for all examined samples after the AC impedance test in 0.9% NaCl solution 36.5 ± 1 °C
그림 Fig. 8. Antibacterial effect of Ti disk non-MoS₂ and with MoS₂ as a function of MoS₂:Dl water dilution ratio (b) 1:500 (c) 1:1000 (d) 1:2000
그림 Fig. 6. Cell viability as a function of MoS₂:Dl water dilution ratio
그림 Fig. 7. % of BIC as a function of MoS₂:Dl water dilution ratio

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