A device for the study individual cells including a picowell array (such as an array of microwells, dimples, depressions, tubes or enclosures) and a fluid reservoir in fluid communication with the picowells through channels is disclosed. Preferably, the device has a movable lid that in one rest location allows loading of cells into the picowell array. Preferably the channels of the device are capillary channels. Also disclosed is a device for the automated study of cells including a picowell-bearing device having a picowell array with a movable lid, a lid-moving component, at least one solution dispensing component and a control system functionally associated with the lid-moving component as well as with the solution dispensing component.
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