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A microfluidic approach to generate hydrogel microstructures inside microchannels for controlled encapsulation of single cells was developed. The method was based on a modified microscope projection photolithography which allowed for the photopolymerization of poly(ethylene glycol) diacrylate (PEG-DA) inside microchannels. Uniform-sized hydrogel microstructures (∼50 μm in diameter) were generated...
A novel method based on fluorescence detection of hydrogel encapsulated cells in microchannels was developed for anticancer drug analysis. In this work, human hepatoma HepG2 cells and human lung epithelial A549 cells were simultaneously immobilized inside two different shapes of three-dimensional hydrogel microstructures using photolithography approach on a same array. Microarrays of living cells...
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