Iranian researchers at the Institute for Advanced Studies in Basic Sciences of Zanjan found a solution to decrease erosion in different parts of nanomachines.
Casimir effect is an effect in which two metallic plates that are located in quantum vacuum attract each other. The presence of unevenness on the surface of the plates causes lateral Casimir force. Such lateral force has resulted in some suggestions for designing a new type of nanomachines.
“As the contact between the pieces of nanomachines causes erosion in the pieces at small scales, we looked for a method to reduce such erosion,” Mojtaba Nasiri Zarandi, one of the researchers of this project, told the Iran Nanotechnology Initiative Council.
“In the suggested system, there is no physical contact between the pieces. Therefore, the nanomachines have a longer life,” he continued.
The suggested system in this research contains a cylinder with sine-type fluctuations on the surface. The cylinder has been placed between two other metallic plates that have sine-type fluctuations too. There is no physical contact between the said three pieces, and each of the plates imposes lateral Casimir force on the cylinder. When each of the plates fluctuates, two time-related momentums are imposed on the cylinder. The fluctuation parameters of the places are obtained by solving momentum balance differential equation.
The nanomachine that was studied in this research can operate as a mechanical sensor for fluctuation parameters (fluctuation period and frequency). Even when there is a phase difference between the two fluctuators, the frequency and period difference between the two fluctuators can be determined.