Chaotic Modeling and Simulation (CMSIM) 3: 161-170, 2019 _________________ Received: 7 June 2019 / Accepted: 31 june 2019 © 2019 CMSIM ISSN 2241-0503 Engineering of a Temperature Dependent Thermal Bath Coupled to a Biosystem Sohrab Behnia * , Mostafa Salimi, and Samira Fathizadeh Department of Physics, Faculty of Science, Urmia University of Technology, Urmia, Iran (E-mail: s.behnia@sci.uut.ac.ir) Abstract. In the emerging field of nanoelectronics, biosysystems have drawn in the past decade the attention of both experimentalists and theoreticians. Flexibility, programmability, and not expensive synthesis of biosystems make them the appropriate candidate for nanoelectronic applications. Biosystems can show different electrical properties. Therefore, the identification of the relevant charge transport channels in biosystems becomes a crucial issue. In the current study, the electronic transport through a biosystem in the presence of the environment is investigated. We obtain the eigenvalues and eigenstates of the Hamiltonian matrix. Analyze is based on the statistical distribution of the energy levels. We have varied the system parameters and investigate the stability properties of system. Total spin current (     S S S t ) in short sequences shows the localization behavior and by increasing length of sequences we can see nearly extended state, delocalization and more spin current. Keywords: Quantum chaos tools, Nanoelectronic, Heat bath, Biosystem. 1 Introduction In recent years, the syllable “bio” has become a powerful attribute to attract public attention for designated “green” processes. “Bio” is generally used in a broad context which often complicates communication between experts and beginners in this interesting field. Often they are denoted as biomaterials, but this term is also widely used for any interaction between biological and non- biological systems. Biology and electronics are both expert at for accessing, analyzing, and responding to information. Biology uses ions, small molecules, and macromolecules to receive, analyze, store, and transmit information, whereas electronic devices receive input in the form of electromagnetic