Spacecraft, radiator panels for spacecraft, kits for radiator panels, inserts associated with radiator panels, heat pipes associated with radiator panels, and methods of assembling radiator panels are disclosed herein. A power source voltage generating unit generates high-voltage and low-voltage power source voltages that are higher and lower, respectively, than the voltage of the driving signal and applies the voltages to collectors of the driving transistors. When a relay connected to both the terminals of the diode is turned on, substantially equal amounts of positive ions and negative ions are generated, and a bacteria removaldisinfection effect can be obtained by emitting these positive ions and negative ions into the air. The second layer is inserted between the second electrode and the first layer and includes the semiconductor element. Diagnostic oligonucleotides for diagnosing or monitoring chronic inflammatory disease, particularly SLE infection and kits or systems containing the same are also described. The activated carbon material is suitable to form improved carbon-based electrodes for use in high energy density devices.