Drexel University researchers have developed a new method for making polymer nanobrushes. The technology can be used in various medical applications, including coating, biomedical, sensing, and catalysis processes.

Current methods for making polymer nanobrushes have more in common with transplanting grass one blade at a time, or scattering seeds and hoping they grow.

By first growing the material as polymer crystals, the Drexel engineers can precisely tune the shape, size, and density of the brush "bristles." When the two-dimensional sheets of nano-crystals are attached to a substrate and dissolved, the remaining polymers spring up to form the brush.

Additionally, the team has created polymer crystals with anchor points on both ends so they form a loop, which is a much sturdier bristle formation than a single-anchored polymer.

Polymer brush materials are especially useful in situations where pieces need to fit tightly together but must move without friction. Nanobrushes also keep important surfaces free of particles, chemicals, proteins, and other fouling agents.

Source 

Topics:
Coatings, colorants and finishes Coatings, colorants, and finishes Education and training Manufacturing processes Medical Medical equipment and supplies Medical, health and wellness Medical, health, and wellness Nanomaterials Nanotechnology Patient Monitoring People and personalities Polymers Robotics

More From SAE Media Group

Medical Design Briefs
Malleable ‘Electronic Skin’ Self-Healable, Recyclable
Related article image
Medical Design Briefs
Researchers Create Soft, Flexible Materials with Enhanced Properties
Related article image
Tech Briefs
Elastic Polymer is Both Stiff and Tough
Related article image
Medical Design Briefs
Skin Sensors Monitor Health
Related article image
    Magazine cover
    Medical Design Briefs Magazine

    This article first appeared in the June, 2016 issue of Medical Design Briefs Magazine.

    Read more articles from this issue here.

    Read more articles from the archives here.