Cleansing for Life

Hoque, Muhammad Jahidul

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https://hdl.handle.net/2142/109758 Copy

Description

Title

Cleansing for Life

Author(s)

Hoque, Muhammad Jahidul

Contributor(s)

Yan, Xiao

Issue Date

2021

Keyword(s)

• Fruit Flies
• Surface Science

Abstract

If you have been seeing small flies or gnats in your kitchen, they're probably fruit flies. Fruit flies are primarily nuisance pests and have the potential to contaminate food with bacteria and other disease-producing organisms. However, fruit flies itself have extreme self-cleaning and bactericidal behavior; good news for the surface science! Their body parts, especially the wings have a unique combination of micro/nano-architecture and surface chemistry that cause extreme water repellency (superhydrophobicity), which prevents wings contamination with debris and microorganisms by enabling good self-cleaning activity in dusty and humid environment. In order to study this phenomena, we developed a dual dust-droplet dispensing and visualization system. A coal particle (~500µm length) resembling a dust on the wing surface, jumps off the surface by converting the surface free energy into kinetic energy when coalesced with a microscopic water droplet (~140µm radius). The chronophotograph demonstrates the previously unidentified single droplet jumping that occurs during the coalescence of a water droplet with a coal/dust particle.

Type of Resource

Image

Language

eng

Permalink

http://hdl.handle.net/2142/109758

Copyright and License Information

Copyright 2021 Muhammad Jahidul Hoque

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