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Light-Responsive Polymer Micro- and Nano-Capsules.

Valentina Marturano1,2, Pierfrancesco Cerruti3, Marta Giamberini4

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Polymers
|April 12, 2019
PubMed
Summary

Researchers review polymer-based micro- and nano-carriers that release active substances when exposed to light. These light-responsive systems offer controlled delivery for various applications, including pharmaceuticals and cosmetics.

Keywords:
interfacial polymerizationlayer-by-layerliposomesphoto-responsive capsulesself-assemblysmart materials

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Area of Science:

  • Polymer Science
  • Materials Science
  • Nanotechnology

Background:

  • Micro- and nano-encapsulation are crucial for protecting active substances and enabling controlled release.
  • Stimuli-responsive materials are key for designing advanced capsule shells.
  • Light stimulus offers a non-invasive trigger for material release.

Purpose of the Study:

  • To review recent advancements in polymer-based micro- and nano-sized hollow carriers.
  • To focus on light-responsive release mechanisms, particularly those activated by UV, visible, and infrared light.
  • To discuss various preparation techniques for these advanced carriers.

Main Methods:

  • Review of existing literature on polymer micro- and nano-carriers.
  • Analysis of light-responsive polymers and their application in encapsulation.
  • Categorization of preparation techniques including liposomes, self-assembly, layer-by-layer, and interfacial polymerization.

Main Results:

  • Highlighting the development of polymer shells with photo-sensitive segments for controlled release.
  • Emphasis on light-responsive systems utilizing wavelengths safe for biological applications.
  • Overview of diverse encapsulation applications, from food additives to cosmetics.

Conclusions:

  • Polymer-based micro- and nano-carriers with light-responsive properties are a promising area of research.
  • These systems enable precise control over the release of active substances.
  • Continued development in preparation techniques will expand their applicability across industries.