Which packaging innovation first allowed temperature-sensitive vaccines to be transported to remote locations without refrigeration (cold chain)?

The scientific industry often leads innovation in packaging design, balancing functionality, sustainability, and preservation requirements. From laboratory reagents to diagnostic kits, packaging in science must maintain product integrity while meeting stringent regulatory standards. This poll tests your knowledge about a groundbreaking packaging innovation that changed how certain scientific products are transported and stored.

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The Arktek passive cooling device that maintains freezing temperatures for over a month with no power
The PharmaPort container with active temperature control systems and real-time monitoring
Vacuum-insulated panels (VIPs) combined with phase-change materials in standard shipping containers
The VaxiCool portable solar-powered refrigeration system developed by the WHO