Imaging the transient heat generation of individual nanostructures with a mechanoresponsive polymer

Xueqin Chen, Qing Xia, Yue Cao, Qianhao Min, Jianrong Zhang, Zixuan Chen (), Hong-Yuan Chen and Jun-Jie Zhu ()
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Xueqin Chen: Nanjing University
Qing Xia: Nanjing University
Yue Cao: Nanjing University
Qianhao Min: Nanjing University
Jianrong Zhang: Nanjing University
Zixuan Chen: Nanjing University
Hong-Yuan Chen: Nanjing University
Jun-Jie Zhu: Nanjing University

Nature Communications, 2017, vol. 8, issue 1, 1-10

Abstract: Abstract Measuring the localized transient heat generation is critical for developing applications of nanomaterials in areas of photothermal therapy (PTT), drug delivery, optomechanics and biological processes engineering. However, accurate thermometry with high spatiotemporal resolution is still a challenge. Here we develop a thermosensitive polymer-capped gold nanorod (AuNRs@pNIPAAm), which has temperature-dependent local surface plasmon resonance spectra due to the submolecular conformational change of pNIPAAm molecules. We measure the conformational dynamics on individual gold nanorods at the milliseconds level by the developed spatiotemporal resolution plasmonic spectroscopy (SRPS) and find that it has a fast (

Date: 2017
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DOI: 10.1038/s41467-017-01614-0

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