Mousavi Hamze
Department of Physics, Razi University, Kermanshah, Iran.
Sci Rep. 2025 Jul 23;15(1):26703. doi: 10.1038/s41598-025-11140-5.
The examination of the current-voltage properties of protein chains connected to armchair graphene nanoribbon leads is performed using the tight-binding Hamiltonian approach in conjunction with the Landauer-Büttiker formalism. The nonlinear current-voltage behavior for three different conformations of the protein structures is calculated and evaluated in connection with the corresponding transmission probabilities. The characteristics of current-voltage demonstrate fluctuations in relation to variations in temperature or the width of the electrodes, with modifications in the conformations of protein chains also playing a significant role in these phenomena. An increase in coupling is associated with a corresponding rise in electric current, suggesting a strong interaction between the electrodes and the device. This research serves as a benchmark for potential investigations into diseases or for future applications within the realm of nanotechnology.
采用紧束缚哈密顿方法并结合朗道尔-布蒂克尔形式,对连接到扶手椅型石墨烯纳米带引线的蛋白质链的电流-电压特性进行了研究。计算并评估了三种不同构象的蛋白质结构的非线性电流-电压行为及其相应的传输概率。电流-电压特性表明,其与温度或电极宽度的变化有关,蛋白质链构象的改变在这些现象中也起着重要作用。耦合增加伴随着电流相应增加,这表明电极与器件之间存在强相互作用。这项研究为疾病的潜在研究或纳米技术领域的未来应用提供了一个基准。