相关实验视频

Updated: May 30, 2025

Characterization of Leukocyte-platelet Rich Fibrin, A Novel Biomaterial

Characterization of Leukocyte-platelet Rich Fibrin, A Novel Biomaterial

Published on: September 29, 2015

激光纹理的摩擦,涂上了富含血小板的纤维素

M Noronha Oliveira¹, N Sahoo^2,3, O Carvalho^2,3

¹Ceramic and Composite Materials Research Group, Federal University of Santa Catarina, Florianópolis, Brazil.

Journal of dental research

|January 29, 2025

概括

可注射的富血小板纤维素 (i-PRF) 涂层可以减少激光纹理的石表面的摩擦. 这种纤维素网络增强了i-PRF的附着性,可能加速石植入物骨质整合.

科学领域:

生物材料科学生物材料科学
生物医学工程生物医学工程
部落学 (tribology) 是一个学科.

背景情况:

晶植入物由于其生物相容性和机械性能,在牙科中被广泛使用.
改善的表面特性可以提高植入物稳定性和骨质整合.
可注射的富血小板纤维素 (i-PRF) 是促进组织愈合和再生的有希望的生物材料.

研究的目的:

为了评估i-PRF对激光纹理的石表面的粘附性.
为了评估i-PRF涂层的基对骨组织的摩擦行为.
研究i-PRF和激光纹理的潜力,以改善石植入物骨质整合.

主要方法:

他们比较了三种的表面处理方法:砂/酸蚀刻 (ZLA),随机激光纹理 (RD) 和设计激光纹理 (L16N8).
摩擦系数 (COF) 测量是使用一根针上板的三角计对牛骨进行测量.
使用扫描电子显微镜 (SEM) 来评估表面形态和i-PRF粘附.

主要成果:

与未涂层对照组相比,i-PRF涂层显著降低了ZLA和L16N8烯表面的COF.
在i-PRF涂层后,在RD和L16N8表面之间没有观察到COF的显著差异.
该i-PRF涂层表现出滑剂效应,减少对骨组织的摩擦.

结论:

激光纹理的石表面增强了i-PRF的附着性.
该i-PRF涂层起到了滑剂的作用,减少了石和骨之间的摩擦.
这种表面修饰和i-PRF的组合有可能改善石植入物的骨质整合.

关键词:

摩擦系数的摩擦系数.牙科材料牙科材料摩擦; 骨的摩擦; 骨的摩擦; 骨的摩擦激光表面纹理激光表面纹理激光器是一种激光器.骨整合牙科植入物牙科植入物

更多相关视频

Fused Filament Fabrication FFF of Metal-Ceramic Components

Fused Filament Fabrication FFF of Metal-Ceramic Components

Published on: January 11, 2019

PRP as a New Approach to Prevent Infection: Preparation and In vitro Antimicrobial Properties of PRP

PRP as a New Approach to Prevent Infection: Preparation and In vitro Antimicrobial Properties of PRP

Published on: April 9, 2013

相关概念视频

Clot Retraction and Fibrinolysis

Clot Retraction and Fibrinolysis

After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.

Formation of the Platelet Plug

Formation of the Platelet Plug

The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...