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Sensors 2019, 19(2), 267;

Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors

Graduate School of Pharmaceutical Science, Chiba Institute of Science, 15-8 Shiomi-cho, Choshi-shi, Chiba 288-0025, Japan
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Ibaraki Tsukuba 305-0044, Japan
Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Chiba 277-0827, Japan
Author to whom correspondence should be addressed.
Received: 10 December 2018 / Revised: 8 January 2019 / Accepted: 8 January 2019 / Published: 11 January 2019
(This article belongs to the Section Biosensors)
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Here we report the aromatic vapor sensing performance of bitter melon shaped nanoporous fullerene C60 crystals that are self-assembled at a liquid-liquid interface between isopropyl alcohol and C60 solution in dodecylbenzene at 25 °C. Average length and center diameter of the crystals were ca. 10 μm and ~2 μm, respectively. Powder X-ray diffraction pattern (pXRD) confirmed a face-centered cubic (fcc) structure with cell dimension ca. a = 1.4272 nm, and V = 2.907 nm3, which is similar to that of the pristine fullerene C60. Transmission electron microscopy (TEM) confirmed the presence of a nanoporous structure. Quartz crystal microbalance (QCM) results showed that the bitter melon shaped nanoporous C60 performs as an excellent sensing system, particularly for aromatic vapors, due to their easy diffusion through the porous architecture and strong π–π interactions with the sp2-carbon. View Full-Text
Keywords: fullerene crystals; self-assembly; liquid-liquid interface; aromatic vapors; quartz crystal microbalance; sensing fullerene crystals; self-assembly; liquid-liquid interface; aromatic vapors; quartz crystal microbalance; sensing

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Furuuchi, N.; Shrestha, R.G.; Yamashita, Y.; Hirao, T.; Ariga, K.; Shrestha, L.K. Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors. Sensors 2019, 19, 267.

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