Fig. 3

Design of T-junction microfluidic chip and scalable production of diameter-controllable IGMs. (a) Computer-aided design (CAD) blueprint of the T-junction microfluidic chip. (b–d) Photographs of the T-junction microfluidic chip from the side (b), end under low power (c), and end under high power (d). (e–i) Process of droplet formation and flow into the UV irradiation area. (j–n) IGMs with different diameters fabricated by varying the oil and aqueous flow rates. (o) Statistical diagram of IGMs with different diameters resulting from varying the oil and aqueous phase flow rates. (p) Linear relationship between IGM diameters and the flow rate ratio. (q–u) Distribution graphs of microcarrier size adjusted by different oil and aqueous flow rates