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The market and the future trends of smart packaging show a tendency towards a continuous increase. Several reports have revealed about the increase of consumer concern for food quality and safety, which gives rise to the demand of intelligent packaging. Nano-enabled food packaging has attracted considerable interest and driven a variety of potential applications in the intelligent packaging. The presence of nanomaterials as nanodevices or nanosensors has been recognized as a part of the modern intelligent packaging for monitoring the condition of packaged food or the environment surrounding the product. Among of nanosensors, optical indicator has been widely applied in the market due to the convenient and easy to use. The utilization of nanomaterial such as metal nanoparticles or photonic nanocrystals shows superior performance in novel communicative functions than the traditional colorimetric indicator because of their unique optical properties and high surface reactivity. This review focuses exclusively on ongoing scientific research and recent technological breakthroughs related to nanotechnology-derived colorimetric indicators. The challenges of their application are highlighted and discussed to provide adequate information for future development.

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Publication history

Received: 21 June 2018
Revised: 23 October 2018
Accepted: 26 October 2018
Published: 09 November 2018
Issue date: March 2019

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Acknowledgements

Acknowledgements

This work was supported by the International Joint R&D Program, the Agency for Korean National Food Cluster, Republic of Korea and in part by the Yonsei University Research Fund of 2018.

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Reprints and Permission requests may be sought directly from editorial office.
Email: nanores@tup.tsinghua.edu.cn

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