Spray-assisted polyelectrolyte multilayer buildup: from step-by-step to single-step polyelectrolyte film...

Area of Science:

• Materials Science
• Surface Chemistry
• Nanotechnology

Background:

• Polyelectrolyte multilayers (PEM) are constructed via sequential adsorption of polyanions and polycations.
• This technique allows for precise surface functionalization with applications in optics and biomedicine.
• Traditional dipping methods are time-consuming and challenging for industrial scaling.

Purpose of the Study:

• To review the current literature on polyelectrolyte multilayer deposition using spraying techniques.
• To contextualize the spraying method within the history and fundamental principles of PEM.
• To provide an overview of diverse application fields for sprayed PEM.

Main Methods:

• Review of existing scientific literature on polyelectrolyte multilayer deposition.
• Focus on advancements in spraying techniques as an alternative to dipping.
• Analysis of fundamental issues and application areas of sprayed PEM.

Main Results:

• Spraying polyelectrolyte solutions onto substrates is a faster and more industrially adaptable method than dipping.
• Significant research interest is growing in the spraying deposition technique for PEM.
• The review covers fundamental aspects and application scope of sprayed PEM.

Conclusions:

• The spraying method presents a promising advancement for the fabrication of polyelectrolyte multilayers.
• This technique enhances the efficiency and scalability of surface functionalization.
• Sprayed PEM hold potential for broad applications across various scientific and industrial fields.