Temperature phase transition model for the DNA-CNTs-based nanotweezers

TL;DR

This paper models the temperature-induced phase transition in DNA-CNTs nanotweezers, analyzing how thermal effects and Casimir forces influence their operation, advancing the understanding of bio-nanorobot control mechanisms.

Contribution

It introduces a theoretical model for DNA-CNTs nanotweezers incorporating temperature effects and Casimir forces, providing insights into their actuation behavior.

Findings

Casimir force significantly affects nanotweezers operation

Temperature influences DNA phase transition and device control

Theoretical framework predicts opening and closing dynamics

Abstract

DNA and Carbon nanotubes (CNTs) have unique physical, mechanical and electronic properties that make them revolutionary materials for advances in technology. In state-of-the-art applications, these physical properties can be exploited to design a type of bio-nanorobot. In this paper, we present the behaviors of DNA-based nanotweezers and show the capabilities of controlling the robotic device. The theoretical calculations are based on the Englander-Peyrard-Bishop model for DNA. Furthermore, the influence of the Casimir force between on the opening and closing of nanotweezers is studied in comparison with the stretching forces of DNA.