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The role of "disaggregation" in optical probe development.

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Area of Science:

  • Chemical sensing
  • Materials science
  • Analytical chemistry

Background:

  • Aggregation-caused signal change (ACSC) is a common mechanism for optical probes.
  • The reverse process, disaggregation, is less understood and underutilized.
  • Lack of understanding hinders interpretation and development of disaggregation-based sensors.

Purpose of the Study:

  • To provide a balanced comparison between aggregation and disaggregation mechanisms.
  • To highlight the advantages of disaggregation as a sensing mechanism.
  • To review recent applications of disaggregation in probe development.

Main Methods:

  • Literature review and comparative analysis of aggregation and disaggregation phenomena.
  • Discussion of fluorescence signal changes during aggregation and disaggregation.
  • Exploration of the 'turn-on' probe design based on disaggregation.

Main Results:

  • Disaggregation typically leads to fluorescence signal recovery or enhancement.
  • This offers a promising route for developing 'turn-on' optical probes.
  • Disaggregation-based sensing is an underexplored but advantageous area.

Conclusions:

  • Disaggregation presents a valuable, yet overlooked, mechanism for optical sensing.
  • Further research into disaggregation can unlock new sensor designs and applications.
  • This review aims to stimulate interest and guide future development in disaggregation-based probes.