Square openings for 1 slide. ArraySlide 24 chamber fits one microarray slide and sections it into 24 individual surfaces for multiple simultaneous protein, gene expression, or screening analysis studies. Unit includes lower carrier tray, upper structure plate and gasket (patent pending). Unlike other systems, this device utilizes a compression fit gasket, eliminating the presence of contaminating adhesives. The 6 mm x 7 mm round openings are positioned 9 mm apart in a 3 x 8 format for easy loading by multi-channel pipettes or automated robots. The chamber itself is made from a durable, flat, precision machined aluminum to ensure proper slide alignment and leak-free arrays. The top chamber face is embossed with a letter and number panel for easy identification of each subarray. A pierceable septamat fills the array loading holes to help prevent evaporation. For higher throughput needs, the ArraySlide 16-4 (4 slides in one chamber), ArraySlide 24-4 (4 slides in one chamber) and the ArrayPlate 96 (1 glass plate) systems are available.