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Stimuli-Responsive Plasmonic Assemblies and Their Biomedical Applications.

Qinrui Fu1, Zhi Li1, Fengfu Fu1

  • 1MOE key laboratory for analytical science of food safety and biology, College of Chemistry, Fuzhou University, Fuzhou 350108, China.

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|November 30, 2020
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Summary

Stimuli-responsive plasmonic nanoparticle assemblies offer versatile biomedical applications. This review covers their assembly, disassembly, and use in diagnostics and therapeutics, highlighting future challenges.

Keywords:
applicationsassembly/disassemblygold nanoparticleplasmonic assembliesstimuli-responsivetheranostics

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Area of Science:

  • Nanotechnology
  • Biomedical Engineering
  • Materials Science

Background:

  • Plasmonic nanoparticle (NP) assemblies functionalized with responsive molecules are gaining interest.
  • These assemblies exhibit stimuli-responsive behavior crucial for advanced applications.

Purpose of the Study:

  • To provide a comprehensive overview of recent studies on stimuli-responsive plasmonic NP assemblies.
  • To discuss their in vitro and in vivo assembly/disassembly and biomedical applications.
  • To explore future challenges and perspectives in this field.

Main Methods:

  • Review of recently reported studies on stimuli-responsive plasmonic NP assemblies.
  • Analysis of various stimuli (enzymes, light, pH, redox, temperature, ions, fields) triggering assembly/disassembly.
  • Categorization of biomedical applications.

Main Results:

  • Stimuli-responsive plasmonic NP assemblies have diverse applications including biosensors, SERS, photoacoustic imaging, multimodal imaging, and various therapies.
  • These assemblies respond to a wide range of stimuli, enabling tailored functionalities.
  • Successful in vitro and in vivo applications have been demonstrated.

Conclusions:

  • Stimuli-responsive plasmonic NP assemblies represent a promising platform for advanced biomedical applications.
  • Further research is needed to address challenges in assembly/disassembly strategies and clinical translation.
  • The field holds significant potential for future innovations in diagnostics and therapeutics.