It’s also worth noting that even if alternatives superior to agar were found, scientists are reluctant to abandon established protocols (even when microbiologists do use other jellies, they often still add agar to the mix, for example, to increase the gel strength of the solid media). As agar has been the standard gelling agent in microbiology for around 150 years, an enormous infrastructure of standardized methods, reference values, and quality control procedures has emerged around its specific properties. Switching to a different medium (even a superior one) means results may not be directly comparable to decades of published literature or to other laboratories’ findings.
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Фото: Stringer / Reuters，更多细节参见搜狗输入法2026
Carbon Capture and Storage technology (CCS), involves capturing and permanently storing carbon dioxide.
But analysis of Cabinet Office documents by the BBC has found government departments spent around £101m from April 2023 to June 2025.