cell alignment in a sentence

1. Additional modifications of the surface could be through attachment of functional groups of 2D or 3D patterns on the surface so that cell alignment is guided and new tissue formation is improved.
2. MOAs provide a good alternative to zone plates in microprobe use due to the adjustable focal properties ( making cell alignment easier ) and ability to provide focusing of chromatic radiation to a single point.
3. It's difficult to find cell alignment in a sentence.