研究目的
Investigating the combination of femtosecond laser surface modification and low temperature Atomic Layer Deposition (ALD) method for enhancing the bioactivity properties of hybrid organic–inorganic bone tissue scaffolds.
研究成果
The combined application of femtosecond laser treatment and low temperature ALD method significantly improves the deposition of ZnO on laser-processed areas of biopolymer and biopolymer/ceramic composite materials, enhancing their bioactivity properties for tissue engineering applications.
研究不足
The study did not explore the effect of longer pulse durations on the ALD process. Additionally, the trend of Zn atomic concentration for certain samples suggests the need for further experiments to confirm the findings.
1：Experimental Design and Method Selection:
The study involved femtosecond laser texturing of biopolymer and biopolymer/ceramic composites followed by ZnO film deposition using low temperature ALD method. The laser parameters and ALD cycles were varied to study their effects on the scaffolds' properties.
2：Sample Selection and Data Sources:
Samples of chitosan and Ch/HAp/ZrO2 composites were prepared as thin films on glass substrates. The samples were then subjected to femtosecond laser modification and ALD coating.
3：List of Experimental Equipment and Materials:
A CPA Ti:Sapphire laser system for laser texturing, a Beneq TFS-200 ALD reactor for ZnO deposition, SEM-TESCAN/LYRA/XMU for SEM analysis, and an AXIS Supra electron spectrometer for XPS analysis.
4：Experimental Procedures and Operational Workflow:
The samples were laser textured with varying fluence and pulse numbers, then coated with ZnO using ALD at 50 °C. The morphology and chemical properties were analyzed using SEM, EDX, and XPS.
5：Data Analysis Methods:
The data was analyzed to evaluate the effect of laser texturing and ALD coating on the scaffolds' properties, focusing on ZnO adhesion and surface morphology.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
