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. 2017 Oct 26;8:1142. doi: 10.1038/s41467-017-01293-x

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — The dynamic behavior study of TPE rotors in NUS-24 nanosheets. a Fluorescent spectra of NUS-24 nanosheets (c = 20 µg mL⁻¹, λ _ex = 365 nm) in acetone and acetone/water mixtures. b Plot of relative emission intensity versus water fraction in acetone/water mixtures of NUS-24 nanosheets and bulk powder. c Fluorescence emission spectra of NUS-24 nanosheets in various VOC solutions at room temperature (c = 20 µg mL⁻¹, λ _ex = 365 nm). d Time-dependent fluorescence enhancement of NUS-24 nanosheets by adding 1,4-diisopropylbenzene (20% v/v in acetone). e Relative fluorescence intensity of bulk powder and nanosheets of NUS-24 in various VOC solutions (I _R = I/I _acetone). The error bars show average and range of measured values based on at least five repeats in every single measurement