Time-Temperature Indicator Could Monitor the Storage Conditions of mRNA Vaccines
When the temperature of a glass vial containing simulated vaccine rises above -60 C for longer than 2 minutes, a blue dye in an adjacent tube diffuses into a white absorbent, leaving an irreversible color trace. Credit: Adapted from ACS Omega 2021, DOI: 10.1021/acsomega.1c00404. Read Time: Scientists have developed vaccines for COVID-19 with record speed. The first two vaccines widely distributed in the U.S. are mRNA-based and require ultracold storage (-70 C for one and -20 C for the other). Now, researchers reporting in ACS Omega have developed a tamper-proof temperature indicator t...
Source: technologynetworks.com