Abstract: Provided is a maintenance base station, including a bin body, a rotatable cover, and a revolving shaft, wherein the rotatable cover is in rotatable connection with the bin body via the revolving shaft, the bin body has a debris collection chamber and a opening in communication with the debris collection chamber, the rotatable cover is configured for blocking or revealing the opening; and partial bin wall of the bin body adjacent to the opening is stretched towards the inner side or the outer side of the bin body, hereby forming an avoidance area, and the revolving shaft is arranged in the avoidance area, such that the revolving shaft and the bin wall are spaced apart from each other along the wall thickness direction of the bin wall, so as to accordingly limit the intervention of the revolving shaft in the wall thickness of the bin wall.

Abstract: The method is performed by means of a pair of electrodes that are arranged at a distance and within a sensing zone. A nucleic acid capture molecule with an uncharged backbone and a nucleotide sequence that is at least partially complementary to at least a portion of a strand of the target nucleic acid molecule, is immobilised on an immobilisation unit. The immobilisation unit, which is arranged within the sensing zone, is contacted with a solution suspected to comprise the target nucleic acid molecule, which hybridizes to the nucleic acid capture molecule. An activation agent is added, which has an electrostatic net charge complementary to the net charge of the target nucleic acid molecule. It associates to the complex of nucleic acid capture molecule and target nucleic acid molecule. Added is a water soluble polymer with at least one polymer strand and with an electrostatic net charge that is complementary to the net charge of the activation agent. Thus the polymer associates to the activation agent.

Abstract: The invention provides a method of electrically detecting a biological analyte molecule by means of a pair of electrodes. The electrodes are arranged at a distance from one another within a sensing zone. A capture molecule, which has an affinity to the analyte molecule and which is capable of forming a complex with the analyte molecule, is immobilised on an immobilisation unit. The immobilisation unit is contacted with a solution suspected to comprise the analyte molecule. The analyte molecule is allowed to form a complex with the capture molecule. The invention also provides a probe defined by a nanoparticulate tag that comprises or consists of electrically conducting matter that is capable of chemically interacting with the analyte molecule. In the method of the invention the electrically conducting nanoparticulate tag is added. Thereby the electrically conducting nanoparticulate tag is allowed to associate to the complex formed between the capture molecule and the analyte molecule.