DOWN TO THE LETTER

摘要

Nanoprobes come in all shapes and sizes. In the latest advance in probe engineering, chemists, physicists and engineers at the University of California, Los Angeles, are pooling their resources to perfect a method for mass-producing novel fluorescent microparticles. The nature of these particles can be so precisely controlled that researchers have been experimenting by creating entire alphabets that can be manipulated with optical tweezers, raising the intriguing possibility of playing nano-scrabble.