We appreciate your patience with any delays in shipment during pandemic.

My Account Shopping Cart Email Us Call Us
Home > FAQ and Resources > Research Using Cospheric Spheres > Research With Metal & Metal Coated Microspheres > Self-cleaning of superhydrophobic surfaces by self-propelled jumping condensate

Self-cleaning of superhydrophobic surfaces by self-propelled jumping condensate

Self-cleaning of superhydrophobic surfaces by self-propelled jumping condensate

Katrina M. Wisdoma, Jolanta A. Watsonb, Xiaopeng Qua, Fangjie Liua, Gregory S. Watsonb, and Chuan-Hua Chena

(Silver Coated Soda-Lime Glass: 43-62um)

(Clear Poly(Methyl Methacrylate): 90-106um)


The self-cleaning function of superhydrophobic surfaces is conventionally attributed to the removal of contaminating particles by impacting or rolling water droplets, which implies the action of external forces such as gravity. Here, we demonstrate a unique self-cleaning mechanism whereby the contaminated superhydrophobic surface is exposed to condensing water vapor, and the contaminants are autonomously removed by the self-propelled jumping motion of the resulting liquid condensate, which partially covers or fully encloses the contaminating particles. The jumping motion off the superhydrophobic surface is powered by the surface energy released upon coalescence of the condensed water phase around the contaminants. The jumping-condensate mechanism is shown to spontaneously clean superhydrophobic cicada wings, where the contaminating particles cannot be removed by gravity, wing vibration, or wind flow. Our findings offer insights for the development of self-cleaning materials.

Connect with us:

Facebook Twitter LinkedIn

We are here for you!

Do you have questions about our products? Need help with product selection?
Contact our technical support team at support@cospheric.com.

Sales inquiries?

Reach out to customer service at info@cospheric.com or +1-805-687-3747

Order online anytime

Check out online with a credit card or email a purchase order to info@cospheric.com

About the Company:

Cospheric is a global leader in manufacturing and distribution of precision nanospheres, microspheres, and larger precision spherical particles. Scientists and engineers worldwide rely on us as a proven source to fulfill their needs for microparticles in narrow size ranges, wide selection of colors, densities, properties and formulations. We leverage our extensive technical expertise in micropowders to help each customer find an optimal microparticle solution for their needs. We ship worldwide daily out of our Santa Barbara, CA manufacturing facility.
Terms and ConditionsPrivacy Policy
Cospheric LLC - the leading global supplier of precision spherical particles | Manufactured in Santa Barbara, CA, USA
Copyright © 2008-2020 Cospheric LLC. All Rights Reserved.