title: Structural transformation between supramolecular nanofibers with drastic change of conductivity by heat and ultrasound.
abstract: Transformation with every fiber of its being: Dehydrobenzoannulene derivatives with a boomerang shape, dipole moment, and substituents that make diverse interactions enable the construction of stimuli-responsive nanofibers despite the lack of stimuli-responsive groups in these compounds. Interestingly, the supramolecular nanofibers obtained after ultrasonic treatment displayed an 80% decrease in conductivity as compared to untreated nanofibers. This is the first example of an electronic wire for which the conductivity can be controlled by ultrasound.
authors.affiliation: Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
authors.forename: Hajime
authors.initials: H
authors.lastname: Shigemitsu
authors.forename: Ichiro
authors.initials: I
authors.lastname: Hisaki
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Senga
authors.forename: Daisuke
authors.initials: D
authors.lastname: Yasumiya
authors.forename: Tejender S
authors.initials: TS
authors.lastname: Thakur
authors.forename: Akinori
authors.initials: A
authors.lastname: Saeki
authors.forename: Shu
authors.initials: S
authors.lastname: Seki
authors.forename: Norimitsu
authors.initials: N
authors.lastname: Tohnai
authors.forename: Mikiji
authors.initials: M
authors.lastname: Miyata
mesh_terms: D000480:Alkynes / Q000737:chemistry; D004553:Electric Conductivity; D057139:Nanofibers / Q000737:chemistry*; D011083:Polycyclic Compounds / Q000737:chemistry; D013696:Temperature; D014465:Ultrasonics
chemical_list: D000480:Alkynes; D011083:Polycyclic Compounds; C516931:dehydrobenzo(12)annulene