Which of the following smart materials was specifically developed for architectural facades and can change its transparency based on electrical current without mechanical parts?

The architecture industry is constantly evolving with innovative building products and materials that revolutionize design possibilities. Smart materials represent one of the most exciting frontiers in architectural product design, offering functionality that responds to environmental conditions. Test your knowledge about these cutting-edge architectural innovations that are reshaping our built environment.

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Electrochromic glass
Thermobimetal
Self-healing concrete
Photoluminescent cladding