Abstract: A nucleic acid detection kit includes a kit body, a detection chip, an electrophoresis box, and a connector. The detection chip includes a channel for carrying a microbead sample of the acid. The detection chip is connected to the electrophoresis box. The connector is electrically connected to the detection chip and the electrophoresis box. The microbead undergoes a PCR amplification reaction to obtain a mixed microbead in the channel. The mixed microbead undergoes an electrophoretic detection in the electrophoresis box. A nucleic acid detection device includes the nucleic acid detection kit is also disclosed. The nucleic acid detection device has a simple structure, which is portable, flexible, and convenient, and can be used at home.

Abstract: A solar cell with graded bandgap is provided to increase the efficiencies of using the solar energy by a solar cell. The solar cell with graded bandgap above sequentially comprises a transparent conductive layer, a polysilicon layer, and conductive layer on a substrate. The polysilicon layer has a gradually increased bandgap from a first interface contacting the transparent conductive layer to the second interface contacting the conductive layer.

Abstract: An ESD protection structure, comprising at least one conductive roller. The conductive roller comprises a conductive roller body, and a supporter supporting the conductive roller. The supporter is grounded.