Wrinkling Non-Spherical Particles and Its Application in Cell Attachment Promotion

Area of Science:

• Materials Science
• Biotechnology
• Surface Engineering

Background:

• Wrinkled particles are common in nature, offering functional advantages.
• Existing methods for creating wrinkled particles are often complex or limited.

Purpose of the Study:

• To develop a simple and rapid method for fabricating wrinkled non-spherical particles.
• To mimic natural surface textures for potential biomedical applications.

Main Methods:

• Utilized flow lithography and plasma treatment to create wrinkled particles.
• Controlled UV exposure time and washing processes to tune wrinkle morphology.
• Synthesized particles within a microfluidic channel, resulting in a partially cured polymer (PCP) layer.

Main Results:

• Successfully fabricated wrinkled non-spherical particles with controlled shapes and sizes.
• Demonstrated that the PCP layer buckles upon plasma treatment to form wrinkles.
• Showcased that wrinkles significantly promote cell attachment without chemical modification.

Conclusions:

• A facile method for producing wrinkled particles with tunable surface textures was established.
• The wrinkled surfaces show promise for enhancing cell attachment in biomedical contexts.
• This technique offers a novel approach for developing biomaterials with improved cellular interactions.