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. 2017 Nov 14;8:1498. doi: 10.1038/s41467-017-01614-0

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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. 1 — Schematic illustration of the thermometry principle of AuNR@pNIPAAm. a The temperature response mechanism of AuNR@pNIPAAm. b The high-resolution transmission electron microscopy image of AuNR@pNIPAAm. Scale bar is 20 nm. c The molecular structure of pNIPAAm for AuNR@pNIPAAm fabrication. d A broadband DFM image of AuNR@pNIPAAm at 25 °C. Scale bar is 5 μm. e Same as d but the temperature is increased to 40 °C. f The LSPR wavelength distribution of AuNR@pNIPAAm at 25 °C. g Same as f but the temperature is increased to 40 °C. h Scattering spectra of a single AuNR@pNIPAAm particle over the temperature. Inset: Temperature-dependent LSPR wavelength of this particle. i Mean scattering spectral redshifts of single AuNRs@pNIPAAm particles as functions of the temperature. Error bars, ±1 s.d. with n = 10 each