By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.
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Follow topics & set alerts with myFT。关于这个话题，爱思助手下载最新版本提供了深入分析
«Я разговаривал с Путиным… Я хотел бы, чтобы эта война уже закончилась», — заявил политик журналистам.
从设计角度看，EMIB-T不再局限于简单的2.5D互连，而是向3D封装技术Foveros靠拢，使得在更大芯片尺寸下实现高密度集成成为可能，为未来异构计算平台提供灵活封装架构。