茶叶冰淇淋的新配方

通过对冰淇淋的配方中茶叶的加入量、稳定剂的选用,研究制得的产品组织细腻、风味独特,具有很好的市场发展前景。     

Bacteria in ice may record climate change

To many people, bacteria and climate change are like chalk and cheese： the smallestcreature versus one of the biggestphenomena on Earth. Not really. Scientists with the CAS Institute of Tibetan Plateau Research （ITP） and coworkers recently reported thatsmall bugs deposited in ice and snow might tell how our climate has been changing.     

Mass production of 2D materials by intermediate-assisted grinding exfoliation

The scalable and high-efficiency production of 2D materials is a prerequisite to their commercial use. Currently, only graphene and graphene oxide can be produced on a ton scale, and the inability to produce other 2D materials on such a large scale hinders their technological applications. Here we report a grinding exfoliation method that uses micro-particles as force intermediates to resolve applied compressive forces into a multitude of small shear forces, inducing the highly efficient exfoliation of layer materials. The method, referred to as intermediate-assisted grinding exfoliation (iMAGE), can be used for the large-scale production of many 2D materials. As an example, we have exfoliated bulk h-BN into 2D h-BN with large flake sizes, high quality and structural integrity, with a high exfoliation yield of 67%, a high production rate of 0.3 g h⁻¹ and a low energy consumption of 3.01 × 10⁶ J g⁻¹. The production rate and energy consumption are one to two orders of magnitude better than previous results. Besides h-BN, this iMAGE technology has been used to exfoliate various layer materials such as graphite, black phosphorus, transition metal dichalcogenides, and metal oxides, proving its universality. Molybdenite concentrate, a natural low-cost and abundant mineral, was used as a demo for the large-scale exfoliation production of 2D MoS₂ flakes. Our work indicates the huge potential of the iMAGE method to produce large amounts of various 2D materials, which paves the way for their commercial application.     

Non-crystalline materials

Non-crystalline materials have recently made an impact on solid state physics that threatens to relegate the role of the single crystal from its venerable position in this field to that of a particular, and not very common, example of condensed matter. The discovery that glasses need not necessarily be insulators, but can be semiconductors and even metals, has opened up a whole new field of fundamental investigation, in addition to promising a host of possible uses. In this article, some of the properties of non-crystalline materials will be described, with emphasis on current and potential applications.