Confined growth of armchair MoS2 nanotubes at the 1-nm limit. - Nakanishi, Yusuke; Senga, Ryosuke; Furusawa, Shinpei; Sato, Yuta; Liu, Zheng; Tanaka, Takumi; Gao, Yanlin; Maruyama, Mina; Okada, Susumu; Miyata, Yasumitsu; Suenaga, Kazu (Science, 2026)