Gel (1 of 2) (IMAGE)

Rice University

Gel (1 of 2)

Caption

Alternating, nano-sized layers of hydrophilic and hydrophobic molecules self-assemble into a block copolymer called a photonic gel, developed at Rice University and the Massachusetts Institute of Technology. It changes color depending on the amount of water absorbed by the hydrophilic layers, which can be tuned by the solvent used.

Credit

Thomas Lab/Rice University

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