Which innovative packaging material was recently developed by scientists that can actively preserve biological samples without refrigeration for up to 30 days?

In the science industry, packaging design isn't just about aesthetics—it's about functionality, preservation, and sometimes even the science itself. Revolutionary packaging innovations have transformed how scientific products are stored, transported, and used. This question focuses on a recent breakthrough in sustainable scientific packaging that made headlines for its innovative approach to a common laboratory problem.

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Graphene-infused biopolymer that creates a hermetic seal through molecular alignment
Silk-derived protein film that stabilizes enzymes and vaccines at room temperature
Carbon nanotube mesh that generates a temperature-regulating microenvironment
Crystalline cellulose matrix that releases preservation compounds in response to temperature changes