The role of Cholesterol in enhancing Spintronics

This paper presents a comprehensive literature review exploring the intersection of biochemistry and quantum mechanics through the lens of molecular spintronics. Specifically, it analyzes the recent breakthroughs achieved by Dr. Amit Kumar Mondal and his research team at the Institute of Nano Science and Technology (INST), Mohali, regarding the use of cholesterol-based supramolecular materials as tunable spin filters. The review breaks down the mechanics of Chiral-Induced Spin Selectivity (CISS), explaining how the natural structural chirality of cholesterol allows it to manipulate electron spin states at room temperature without relying on traditional heavy, toxic metals or external magnets. Furthermore, the paper highlights how these biological setups can be integrated into hardware components and mapped computationally using simple Python programming workflows, referencing concepts explored during the Python4Physics remote summer program at UC Berkeley. Finally, the text documents the five-and-a-half-month research journey required to unpack these physical principles and acknowledges the public scientific reporting by the Times of India that originally brought this breakthrough to light.