Jul 12, 2014, 1:06 PM
News Code: 2721001
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Iran increases bone cement strength

Tehran, July 12, IRNA - Tehran’s Materials and Energy Research Center has increased the compressive strength of calcium phosphate bone cement using nanoparticles.

The researchers investigated the effect of adding SiC, TiO2 and SiO2 nanoparticles on the mechanical strength of calcium phosphate cements (CPCs).

Lack of mechanical strength constrains the use of CPCs in repairing broken bones.

Nano-titania and nano-silica had a remarkable effect on the compressive strength of CPC, but slight changes were found by using nano-SiC.

Although a sharp increase in the compressive strength of all cements was observed by soaking them in a solution, the soaked cements and nano-SiO2-added ones showed the greatest strength.

Results showed that nano-SiO2 and nano-TiO2 particles were appropriate additives to improve short-term mechanical strength of CPCs, but nano-SiO2 was more effective because it improves the long-term mechanical strength of CPC after soaking.

In the study of the strength of materials, compressive strength is the capacity of a material or structure to withstand loads tending to reduce size.

Physiological solution is an artificially prepared solution similar to blood plasma in salt composition and osmotic pressure. The solution is used in physiological experiments with isolated organs and in clinical practice.

Saeed Hesaraki, Masoud Hafezi-Ardekani and Maryam Mohammadi were researchers on the project.