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Paper-based sensors offer low-cost, simple diagnostics for disease detection and global health. Innovations in nanoparticle materials, recognition molecules, and device design enhance sensitivity and capabilities for these vital assays.

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Area of Science:

  • Biomedical Engineering
  • Analytical Chemistry
  • Materials Science

Background:

  • Paper-based sensors and assays are valuable for biological applications like disease diagnostics and food safety.
  • Paper immunoassays are particularly significant in global health due to their affordability and ease of use.

Purpose of the Study:

  • To review the fundamental principles of paper-based sensor technology.
  • To examine various implementations of paper-based assays.
  • To discuss innovative strategies for enhancing assay performance and capabilities.

Main Methods:

  • Review of existing literature on paper-based sensor technology.
  • Categorization of novel strategies based on detection materials, recognition elements, and device architecture.

Main Results:

  • Innovations include utilizing unique nanoparticle materials and structures for detection.
  • Novel biological species are being explored for improved biomarker recognition.
  • Advancements in device design and architecture are enabling new functionalities.

Conclusions:

  • Paper-based assays offer a promising platform for accessible and sensitive diagnostics.
  • Continued innovation in materials, biology, and engineering will further advance their applications.
  • These advancements hold significant potential for global health and point-of-care testing.