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Traffic Light band-aid / Traffic Light band-aid

Traffic Light band-aid

The design changes it’s color(green,yellow,red) after oxidation according to the special coating of band-aid back.It can indicate the length of a band-aid’s using time due to the color.So we can solve the problem that we forget take off the band-aid which will lead to internal appear bacteria which will hurt the woungl healing.

University

Nanhang Jincheng College

Nanhang Jincheng College
Nanjing, China

Yuanhang Jiang,
Nanhang Jincheng College

Ning Sun,
Nanhang Jincheng College

Yucheng Jiang,
Nanhang Jincheng College

Yingzi Xue,
Nanhang Jincheng College