Abstract: A microfluidic chip suitable for detecting a microdroplet includes a first component, a second component, a channel layer, and a semiconductor chip. The first component includes a first substrate, a first electrode layer, and a first dielectric layer, wherein the first electrode layer is located between the first substrate and the first dielectric layer. The second component is disposed opposite to the first component and includes a second substrate, a second electrode layer, and a second dielectric layer. The channel layer is located between the first component and the second component. The semiconductor chip is disposed at one side of the first substrate and is exposed to the channel layer to assist in treating or detecting a sample or microdroplet. The microdroplet in the sample entering the channel layer is reacted with the semiconductor chip, and thus the sample is detected.

Abstract: In one aspect, a programmable fragrance generating apparatus may include a control center, a plurality of liquid fragrance receiving holes, and a receiving space for at least one EMF platform, wherein the EMF platform is electrically connected with the control center and has a plurality of reservoirs to receive different liquid fragrances from the fragrance receiving holes; each liquid fragrance is controlled by the control center to transport from each reservoir to one or more driving electrodes on the EMF cartridge to mix with one or more other liquid fragrances, which can be further transported to one or more microheater electrodes, atomizers, or nebulizers for fragrance releasing by evaporation at a predetermined temperature.