Lithium niobate microlaser offers ultranarrow linewidths and wavelength tunability, for miniaturized optical systems to advance lidar, metrology, and more.
Researchers report a nanomembrane system that harvests and purifies tiny blobs called exosomes from tears, allowing researchers to quickly analyze them for disease biomarkers.
Researchers have developed a durable molecular encryption key from sequence-defined polymers that are built and deconstructed in a sequential way. They hid their molecular key in the ink of a letter, which was mailed and then used to decrypt a file with text from The Wonderful Wizard of Oz.
