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Flash NanoPrecipitation for the Encapsulation of Hydrophobic and Hydrophilic Compounds in Polymeric Nanoparticles

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Soft Poly(N-vinylcaprolactam) Based Aqueous Particles.

Joonas Siirilä¹, Heikki Tenhu

¹University of Helsinki. joonas.jukonen@helsinki.fi.

Acta Chimica Slovenica

|July 21, 2022

Summary

Soft poly(N-vinylcaprolactam) (PNVCL) nanoparticles offer tunable drug delivery. Their thermoresponsive nature allows controlled release of active compounds, making them promising for various applications.

Keywords:

microgel nanogel poly(N-vinyl caprolactam)responsive synthesis

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Area of Science:

Materials Science
Polymer Chemistry
Nanotechnology

Background:

Soft nanoparticles are versatile carriers for active compounds, offering stability and stimuli-responsiveness.
Thermoresponsive colloidal gel particles are particularly attractive due to their soft structure and responsiveness.

Purpose of the Study:

To review the synthesis, properties, and applications of soft poly(N-vinylcaprolactam) (PNVCL) particles.
To highlight the utility of PNVCL's thermoresponsive behavior for controlled release.

Main Methods:

Focus on synthetic strategies for creating PNVCL nanoparticles.
Characterization of PNVCL particle properties, including phase transition behavior.
Exploration of PNVCL's interactions with loaded compounds.

Main Results:

PNVCL particles exhibit a phase transition near body temperature, altering their solubility and structure.
This transition significantly impacts the diffusion and release kinetics of encapsulated active ingredients.
The polymer's changing solubility influences its interaction with loaded compounds.

Conclusions:

Soft PNVCL nanoparticles are effective carriers for active compounds due to their tunable thermoresponsive properties.
The controlled collapse and water expulsion of PNVCL particles enable stimuli-responsive drug delivery.
PNVCL particles present a promising platform for advanced drug delivery systems.