Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Tea bag with Cells / Tea bag

Tea bag with Cells
Tea bag with Cells

It is well known in biology that cells can swell and shrink based on the percentage of their water contents. We apply cells from micro organisms that are food safe to biodegradable thin silicone surface and create artificial leaves that can transform from folding to unfolding when the environmental humidity raises.
We then apply the transformable leaves to the design of living tea bags. The leave on top of the tea bag curls up at the beginning. After pouring hot waters into the teacup, the curled leaves will slowly unwrap, to indicate the tea bag is fully soaked in the water.


MIT Media Lab

MIT Media Lab
CAMBRIDGE, United States

Lining Yao,
MIT Media Lab