A research team in Korea has developed a material that may potentially replace color shifting ink in prevention of forgery of bank notes, ID cards, and so on. A team headed by Dr. Sang-seok Lee from the Functional Composite Material Research Center of the Korea Institute of Science and Technology successfully developed a technology to fabricate liquid crystals Liquid crystal comprised of several layers with a thickness comparable to that of a hair strand using hydrophilic and hydrophobic properties.
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