Fedorets Alexander A, Koltsov Semyon, Muravev Anton A, Fotin Alexey, Zun Pavel, Orekhov Nikita, Nosonovsky Michael, Skorb Ekaterina V
X-BIO Institute, University of Tyumen Tyumen 625003 Russia.
ITMO University St. Petersburg 191002 Russia
Chem Sci. 2024 Jun 27;15(30):12067-12076. doi: 10.1039/d4sc03066d. eCollection 2024 Jul 31.
Ordered clusters of water droplets levitating over a heated water surface can be used as chemical microreactors and computational devices. Here we show that a chemical reaction between melamine and cyanuric acid can occur during coalescence of pairs of droplets containing these reagents and lead to the sedimentation of the product, crystals of melamine cyanurate. In rotating droplets, the crystals flash with frequencies dependent mostly on the rotational velocity of the droplets defined by the rotor of the velocity field of the air-vapor flow above the heated water surface. With the Machine Learning (ML) approach, we trace the brightness and frequencies of individual crystals and convert the frequencies into musical notes thus making a "micro-orchestra" of the levitation cluster.
悬浮在热水表面上有序排列的水滴簇可被用作化学微反应器和计算设备。在此我们表明，三聚氰胺和氰尿酸之间的化学反应可在含有这些试剂的液滴对合并过程中发生，并导致产物三聚氰胺氰尿酸晶体的沉淀。在旋转的液滴中，晶体闪烁的频率主要取决于由热水表面上方空气 - 蒸汽流速度场的转子所定义的液滴旋转速度。通过机器学习（ML）方法，我们追踪单个晶体的亮度和频率，并将频率转换为音符，从而制作出悬浮簇的“微型管弦乐队”。
