Disclosed herein are small mobile stem (SMS) cells and methods of culturing, isolating, and using SMS cells. Also disclosed are methods of culturing SMS cells in an undifferentiated state for prolonged periods of time, and for using SMS cells for the production of a variety of molecules, including proteins, extracellular matrix (ECM) proteins, and the use of SMS cells in microfluidic devices

The present invention relates to biofunctional polymeric substrates product comprising immobilized antibodies that selective bind to antigens namely autologous growth factors and an inflammatory molecule, uses and method of production. The bio-functional polymeric substrate can be used in a quantification method of antigens namely soluble growth factors, inflammatory molecules and hormones or the biofunctional polymeric substrate can be used to isolate extracellular vesicules. The biofunctional polymeric substrate can be also used in Tissue Engineering and Regenerative Medicine approaches, namely in bone and cartilage lesions, esophageal lesions, periodontal ligament reconstruction and skin lesions regeneration or treatment.