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Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
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Phototriggered drug delivery systems (PTDDSs) offer non-invasive control over drug accessibility. This review details phototrigger structures for precise, light-controlled release of therapeutic agents in biomedical applications.

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Area of Science:

  • Biomedical Engineering
  • Photochemistry
  • Materials Science

Background:

  • Non-invasive control of drug accessibility is crucial for advanced diagnostics and therapeutics.
  • Light-activated drug delivery systems (PTDDSs) enable precise spatiotemporal control over medication release.
  • Various phototrigger molecules are integrated into DDSs to enhance efficiency and light-induced drug release.

Purpose of the Study:

  • To review the design, photochemical properties, and mechanisms of key phototriggered structures for drug delivery.
  • To explore PTDDSs for releasing single and dual active molecules.
  • To highlight applications in photo-regulated drug release, synergistic effects, real-time monitoring, and biocompatibility.

Main Methods:

  • Review of existing literature on phototriggered drug delivery systems.
  • Analysis of different phototrigger molecular structures (e.g., o-nitrobenzyl, coumarinyl, anthracenyl).
  • Examination of photochemical properties and release mechanisms.

Main Results:

  • Several categories of PTDDSs utilize established phototrigger structures for improved therapeutic agent delivery.
  • Specific phototrigger molecules offer unique features and distinct mechanistic approaches for controlled release.
  • PTDDSs demonstrate potential for photo-regulated release, synergistic outcomes, and real-time monitoring.

Conclusions:

  • PTDDSs represent a significant advancement in controlled drug delivery, offering non-invasive, light-triggered release.
  • The diverse range of phototrigger structures allows for tailored applications in biomedicine.
  • Further development of PTDDSs holds promise for enhanced therapeutic efficacy and patient outcomes.