%0 Journal Article
%T Onİ\Demand Coalescence and Splitting of Liquid Marbles and Their Bioapplications
%A Ben Wang
%A Fengtong Ji
%A Kai Fung Chan
%A Philip Wai Yan Chiu
%A Qianqian Wang
%A Zhiguang Guo
%J Archive of "Advanced Science".
%D 2019
%R 10.1002/advs.201802033
%X Coalescence and splitting of liquid marbles (LMs) are critical for the mixture of precise amount precursors and removal of the wastes in the microliter range. Here, the coalescence and splitting of LMs are realized by a simple gravityİ\driven impact method and the two processes are systematically investigated to obtain the optimal parameters. The formation, coalescence, and splitting of LMs can be realized onİ\demand with a designed channel box. By selecting the functional channels on the device, gravityİ\based fusion and splitting of LMs are performed to mix medium/drugs and remove spent culture medium in a precise manner, thus ensuring that the microenvironment of the cells is maintained under optimal conditions. The LMİ\based 3D stem cell spheroids are demonstrated to possess an approximately threefold of cell viability compared with the conventional spheroid obtained from nonadhesive plates. Delivery of the cell spheroid to a hydrophilic surface results in the in situ respreading of cells and gradual formation of typical 2D cell morphology, which offers the possibility for such spheroidİ\based stem cell delivery in regenerative medicine
%K laboratory automation
%K liquid marbles
%K manipulation
%K miniature bioreactors
%K nanoparticles
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523389/