The Nicotine–Tryptophan Dimer: Probing the Principal Interaction of Nicotine with the Nicotinic Acetylcholine Receptor (nAChR), the Binding Pocket in the Human Brain - Yuika Okura; Madisen N. Hallsten; Garrett D. Santis; Keisuke Hirata; Masaaki Fujii; Shun-ichi Ishiuchi; Sotiris S. Xantheas (Journal of the American Chemical Society, 2025)