Dynamic Transformation between Covalent Organic Frameworks and Discrete Organic Cages
From The Journal: JACS
We propose a dynamic covalent chemistry (DCC)-induced linker exchange strategy for the structural transformation between covalent organic frameworks (COFs) and cages for the first time. Studies have shown that the COF-to-cage and cage-to-COF transformations were realized by using borate bonds and imine bonds, respectively, as linkages. Self-sorting experiments suggested that borate cages and imine COFs are thermodynamic minimum compounds. This research builds a bridge between discrete and polymeric organic scaffolds ...
JEOL Announces 2020 Microscopy Image Grand Prize Winners
January 7, 2021, Peabody, Mass. - JEOL USA awarded two Grand Prizes to winners of its 2020 Electron Microscopy Image Contest, and kicked off its 2021 Image Contest at the beginning of the new year. The annual contest showcases JEOL microscope users’ artistically or esthetically pleasing images with good composition, sharp focus, and technical competency, especially in the use of accelerating voltage.
The Grand Prize Transmission Electron Microscope (TEM) Image award was given to Lita ...
JEOL Introduces World's Fastest Direct Write E-Beam Tool
May 16, 2017 (Peabody, Mass.) -- Since 1967, JEOL has been the industry leader in Electron Beam Lithography design and manufacturing. Now the company enters its 51st year in this field with the introduction of a new high throughput spot beam direct write system, the JBX-8100FS.
This new generation of e-beam introduces the capability of writing ultrafine patterns at a high rate of speed directly onto substrates with minimum idle time during the exposure process. ...