Abstract: A cylindrical battery includes a housing having an accommodating space; and a negative electrode sheet, a first separator, a positive electrode sheet, and a second separator that are wound multiple turns forming an electrode core. The housing is co-axial with the electrode core that is disposed in the accommodating space. The positive electrode sheet includes a positive electrode material layer and a positive electrode foil layer. The negative electrode sheet includes a negative electrode material layer and a negative electrode foil layer. Some of the wound turns of the positive electrode foil layer extends toward an end of the housing to form a positive electrode tab. Some of the wound turns of the negative electrode foil layer extends toward another end of the housing to form the negative electrode tab.

Abstract: A liquid storage and release chip provided according to the present application includes a structural layer and an elastic cover sheet. An end surface of one side of the structural layer is provided with a liquid storage cell and a liquid quantitation cell, the liquid storage cell and the liquid quantitation cell are separated by a common partition wall, and the partition wall is provided with a valve opening passing through end surfaces of two sides of the structural layer. The elastic cover sheet is attached to the structural layer and covers the liquid storage cell, the liquid quantitation cell and the valve opening in a sealed manner, and the valve opening allows a spool to be inserted in the valve opening in a sealed manner to push up a portion, covering the valve opening, of the elastic cover sheet.

Abstract: A liquid storage and release chip provided according to the present application includes a structural layer and an elastic cover sheet. An end surface of one side of the structural layer is provided with a liquid storage cell and a liquid quantitation cell, the liquid storage cell and the liquid quantitation cell are separated by a common partition wall, and the partition wall is provided with a valve opening passing through end surfaces of two sides of the structural layer. The elastic cover sheet is attached to the structural layer and covers the liquid storage cell, the liquid quantitation cell and the valve opening in a sealed manner, and the valve opening allows a spool to be inserted in the valve opening in a sealed manner to push up a portion, covering the valve opening, of the elastic cover sheet.

Abstract: A sample collection chip is disclosed in this application, which includes a chip body. The chip body is provided therein with a collection channel and a sample quantitation cell. The collection channel is in communication with the outside via a sample inlet located in a surface of the chip body, the collection channel has a sample-philic property; and the sample quantitation cell and the collection channel are in communication with each other via a first capillary channel, the first capillary channel has a flow section smaller than a flow section of the collection channel, the first capillary channel has a sample-phobic property, and the sample quantitation cell is in communication with an air outlet located in a surface of the chip body via a second capillary channel.

Abstract: A microelectrode sensing device includes a substrate and an array of microelectrode sensors. Each sensor includes a first conductive layer that at least partially conducts electricity. The first conductive layer is formed above the substrate and patterned to include a recording electrode that measures electrical activities of target cells. Each sensor also includes a second conductive layer that at least partially conducts electricity. The second conductive layer is elevated above the first layer and patterned to include multiple positioning electrodes arranged to define a sensing region above the recording electrode. The positioning electrodes are designed to generate an electric field pattern in the sensing region to move and confine the target cells to a sub-region of the sensing region that at least partially overlaps the recording electrode.

Abstract: A microelectrode sensing device includes a substrate and an array of microelectrode sensors. Each sensor includes a first conductive layer that at least partially conducts electricity. The first conductive layer is formed above the substrate and patterned to include a recording electrode that measures electrical activities of target cells. Each sensor also includes a second conductive layer that at least partially conducts electricity. The second conductive layer is elevated above the first layer and patterned to include multiple positioning electrodes arranged to define a sensing region above the recording electrode. The positioning electrodes are designed to generate an electric field pattern in the sensing region to move and confine the target cells to a sub-region of the sensing region that at least partially overlaps the recording electrode.

Abstract: The present invention provides an apparatus for stimulating an animal cell and recording its physiological signal and methods of making and using thereof. The purpose of the present invention is to provide an apparatus for stimulating an animal cell and recording its physiological signal that is efficient, convenient, and accurate. The apparatus for stimulating an animal cell and recording its physiological signal of the present invention comprises a poor conductive substrate, wherein on at least one surface of the substrate is provided at least one unit conductive polymer layer and at least one good conductive microelectrode.

Abstract: The present invention provides an apparatus for stimulating an animal cell and recording its physiological signal and methods of making and using thereof. The purpose of the present invention is to provide an apparatus for stimulating an animal cell and recording its physiological signal that is efficient, convenient, and accurate. The apparatus for stimulating an animal cell and recording its physiological signal of the present invention comprises a poor conductive substrate, wherein on at least one surface of the substrate is provided at least one unit conductive polymer layer and at least one good conductive microelectrode.