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Treating Surfaces with a Cold Atmospheric Pressure Plasma using the COST-Jet
Published on: November 2, 2020
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Characterization of cold atmospheric plasma-modified dentin collagen
Xin-Rong Ma1, Xiao-Ming Zhu2, Jing Li3
1Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology.
Dental Materials Journal
|March 24, 2022
Summary
Radio-frequency atmospheric-pressure glow discharge (RF-APGD) plasma jet treatment effectively crosslinks dentin collagen. This plasma treatment enhances the mechanical and thermal stability of dentin collagen.
Area of Science:
- Biomaterials Science
- Dental Materials
- Plasma Physics
Background:
- Dentin collagen is crucial for tooth structure and integrity.
- Improving dentin's mechanical and thermal properties is essential for dental applications.
- Current crosslinking methods may have limitations.
Purpose of the Study:
- To investigate the crosslinking efficacy of radio-frequency atmospheric-pressure glow discharge (RF-APGD) plasma on dentin collagen.
- To assess the impact of RF-APGD plasma treatment on dentin collagen's mechanical and thermal properties.
Main Methods:
- Dentin collagen was subjected to RF-APGD plasma jet treatment at 4°C.
- Characterization included atomic force microscopy-based nanoindentation, differential scanning calorimetry, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS).
- A non-treatment group served as the control.
Main Results:
- RF-APGD plasma treatment demonstrated a significant crosslinking effect on dentin collagen compared to the control.
- Elastic modulus and denaturation temperature were significantly increased after 30s of plasma treatment (p<0.05).
- XPS analysis confirmed changes indicative of crosslinking.
Conclusions:
- RF-APGD plasma jet treatment is a viable method to induce crosslinking in dentin collagen.
- This plasma-based approach enhances the mechanical and thermal stability of dentin collagen.
- The findings suggest potential for improved dental restorative materials.
