Beginning 72 hours post-stimulation, cells were counted every 48 hours using trypan blue dye exclusion on an
automated hemocytometer (Countess, Invitrogen) and split to 0.8 × 106 with fresh media containing 100 U / ml IL - 2.
The pellet was resuspended (1 % bovine serum albumin in PBS), and total inflammatory cell numbers were determined via an improved
Neubauer hemocytometer (ProSciTech, Thuringowa, Qld, Australia).
Following gesicle treatment, CD81 - negative hiPS cells sorted via flow cytometry were counted using
a hemocytometer.
For the colony formation assay, cells were trypsinized to generate single - cell suspensions and counted by
a hemocytometer.
At each 24 - hour interval, the cells were collected, stained with trypan blue, and counted with
a hemocytometer.
Neurospheres were washed twice with 10 ml of medium, gently triturated, and counted on
a hemocytometer.
The plated cells were then dissociated and counted using
a hemocytometer in order to express results as picograms or nanograms of growth factor produced per day per million cells.
Cells were dissociated by trituration, counted on
a hemocytometer and resuspended in conditioned medium at 1000 cells / µl.
At the end of this incubation, all rafts were thoroughly washed with PBS to remove any non-adherent cells, while adherent cells were trypsinized and counted using
a hemocytometer.
* Lab Instruments: Oscilloscope, Function generator, digital multimeter, Basic circuit elements, spectrophotometer, microscope, flow cytometer,
hemocytometer, ventilators.