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Thermo-responsive plasmonic systems: old materials with new applications.

Tao Ding¹, Jeremy J Baumberg²

¹Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan University Wuhan 430072 China t.ding@whu.edu.cn.

Nanoscale Advances

|September 22, 2022

Summary

Thermo-responsive plasmonic systems combining gold nanoparticles and poly(N-isopropylacrylamide) offer tunable optical properties. Recent advancements enable novel applications in colloidal actuation, meta-film tuning, bioimaging, and sensing.

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Area of Science:

Materials Science
Nanotechnology
Physical Chemistry

Background:

Thermo-responsive plasmonic systems integrating gold nanoparticles and poly(N-isopropylacrylamide) have been researched for decades.
This hybrid system demonstrates dynamic and tunable plasmonic properties influenced by temperature and chemical environment.

Purpose of the Study:

To review recent developments and applications of gold-poly(N-isopropylacrylamide) thermo-responsive plasmonic systems.
To elucidate the fundamental principles governing the plasmon shifts in these complex systems.

Main Methods:

Literature review focusing on research from the last few years.
Analysis of the working principles behind thermo-responsive plasmon shifts.
Categorization of applications including colloidal actuation, plasmon/meta-film tuning, and bioimaging/sensing.

Main Results:

Demonstration of distinct plasmon shifts due to subtle chemical variations.
Successful application in colloidal actuation and precise tuning of plasmonic and meta-film properties.
Emerging utility in advanced bioimaging and sensing platforms.

Conclusions:

The gold-poly(N-isopropylacrylamide) system continues to evolve with novel functionalities.
Significant potential exists for future applications in advanced materials and biomedical fields.