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Anisotropic Particles through Multilayer Assembly.

Veronika Kozlovskaya1, Eugenia Kharlampieva1,2

  • 1Chemistry Department, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.

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Anisotropic polymeric particles offer advantages over spherical ones. Layer-by-layer assembly enables precise synthesis of these advanced particles for biomedical applications.

Keywords:
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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biomedical Engineering

Background:

  • Anisotropic particles exhibit superior properties compared to spherical ones, including bio-mimetic behavior and enhanced permeability.
  • Layer-by-layer (LbL) assembly is a versatile method for creating anisotropic particles with controlled chemical and physical characteristics.

Purpose of the Study:

  • To review recent advancements in synthesizing anisotropic particles using templated multilayer assembly.
  • To discuss structure-property relationships and challenges in controlling anisotropy.
  • To explore potential biomedical applications of these anisotropic colloids.

Main Methods:

  • Templated multilayer assembly using diverse sacrificial templates (biological, polymeric, inorganic, MOFs).
  • Synthesis of anisotropic capsules and hydrogels.
  • Analysis of structure-property relationships based on shape and surface anisotropy.

Main Results:

  • LbL assembly allows precise control over anisotropic particle synthesis, from nano- to micrometer sizes.
  • Shape and surface anisotropy significantly influence particle properties compared to spherical counterparts.
  • Successful fabrication of anisotropic particles using various template types.

Conclusions:

  • Anisotropic particles synthesized via LbL assembly offer significant advantages for advanced applications.
  • Controlling shape and surface anisotropy is key to tailoring particle properties.
  • Promising future applications in biomedicine as artificial cells, sensors, and drug delivery systems.