Questions for ‘These colorful butterflies were printed with transparent ink’
![images of butterflies created with transparent ink](https://www.snexplores.org/wp-content/uploads/2021/09/092421_mt_ink_feat-1030x580.jpg)
Transparent ink takes on a variety of hues when printed in precise, microscale patterns across a clear surface.
K. Li et al/Science Advances 2021
Transparent ink takes on a variety of hues when printed in precise, microscale patterns across a clear surface.
K. Li et al/Science Advances 2021
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