Department of Materials & Interfaces, Weizmann Institute, Rehovot 76100, Israel.
Nanomedicine (Lond). 2009 Dec;4(8):943-50. doi: 10.2217/nnm.09.68.
To fabricate a friction-reducing coating onto different nickel-titanium (NiTi) substrates using inorganic fullerene-like tungsten disulfide (IF-WS(2)) nanoparticles and to estimate in vitro friction reducing extent of the coating.
MATERIALS & METHODS: Different NiTi substrates were coated with cobalt and IF-WS(2) nanoparticles film by the electrodeposition procedure. Coating composition analyses was made by scanning-electron microscopy, energy dispersive x-ray spectroscopy, x-ray powder diffractometry and x-ray photoelectron spectroscopy. Friction evaluation was carried out using standard tribological tests and an Instron system.
Stable and well-adhered cobalt + IF-WS(2) coating of the NiTi substrates was obtained. Friction tests presented up to 66% reduction of the friction coefficient.
NiTi alloy is widely used for many medical appliances; hence, this unique friction-reducing coating could be implemented to provide better manipulation and lower piercing rates.
使用无机类富勒烯型二硫化钨（IF-WS(2)）纳米粒子在不同的镍钛（NiTi）基底上制造减阻涂层，并评估涂层的体外减阻程度。
通过电沉积程序在不同的 NiTi 基底上涂覆钴和 IF-WS(2)纳米粒子膜。通过扫描电子显微镜、能谱、X 射线粉末衍射和 X 射线光电子能谱分析涂层成分。使用标准摩擦学试验和 Instron 系统进行摩擦评估。
成功获得稳定且附着良好的 NiTi 基底钴+IF-WS(2)涂层。摩擦试验表明，摩擦系数降低了 66%。
NiTi 合金广泛用于许多医疗设备；因此，这种独特的减阻涂层可以应用于提高操作性能并降低刺穿率。
