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:

iF SOCIAL IMPACT PRIZE
(free of charge)

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

Publish your project

Cold Band / Band-aid

Cold Band
Cold Band

Injections and infusion will wound hands
It will cause bruising and bleeding
And making people hurt
Cold BandUsing the endothermic chemical reaction
It will cold wound to shrink blood vessels
Thus people will no longer feel pain
.It needed to be pressed before people stick it on hand.There are a bag full of water and ammonium nitrate
inside. The bag is made of plastic film,
it is easy to break.After it have been broken,ammonium nitrate will not dissolve in water.will dissolve in water and absorb heat.

University

Huazhong University Of Science And Technology

Huazhong University Of Science And Technology
Wuhan, China

Design

Huazhong University Of Science And Technology

Huazhong University Of Science And Technology
Wuhan, China