Abstract: Provided is an electrical property measuring device capable of increasing reliability of evaluation of electrical properties of 3D structures such as living tissues and biomimetic structures and simplifying a measurement process by improving an ion concentration gradient caused by an ion concentration polarization phenomenon. The electrical property measuring device includes an ion-selective permeable membrane having a porous structure; and a non-uniform microchannel spaced apart from the ion-selective permeable membrane and including a plurality of parallelly arranged flow channels through which a fluid passes, wherein cross-sectional areas of the flow channels are different.

Abstract: Provided is a CellShot platform for the injection of a material into a flowing cell, in which a high-speed flow cytometer is connected to a 2D intracellular delivery injector, and a method of controlling the delivery of a material into a cell using the same. When a CellShot platform according to the present disclosure is used, a delivery material may be injected into flowing cells at high throughput and with excellent injection efficiency. In this regard, large molecules may also be efficiently delivered and excellent cell viability is exhibited after injection, which can be broadly applied to multiplex personalized cancer vaccine development as well as advanced cell research.