1)	Detachment of cells by control of temperature.
2)	Comparison of re-attachment kinetics for harvested A-549 cells between RepCell and trypsin.
3)	Comparison of harvested extra cellular matrix between RepCell and dispase (E-cadherin).
4)	Comparison of flow cytometry application between RepCell and trypsin.
5)	Comparison of detachment of macrophages between RepCell and trypsin.
6)	Comparison of re-attachment of macrophages between RepCell and trypsin.