if cells area unit constituted in tissue while not matrix support they usually die there for the delivery of cells among a matrix is essential to several rising therapeutic methods these days the repair of defects within the contour of the skin remains a challenge for surgeons fat derived stem cells area unit more and more constituted below the skin in a shot to correct defects ensuing from trauma or aging however the results area unit extremely variable it's currently well known that cells combined with a matrix area unit essential for these applications in medicine and surgical operation you