Lung Wall: Gelly Buttons
The lung wall is composed of a series of gelly button modules. Each gelly button module consists of a bass wood frame with a polyacrylamide hydrogel form mechanically fastened to the outer face, with a laser-cut acrylic ring mediating the joint. The cavity of each module is negatively pressurized, causing a passive suction force for effective moisture sorption through the hydrogel. The hydrogels effectively expand and contract with changes in moisture levels. When the various polygonal forms are stacked in arrays, the patterns of gelly buttons breathe humidity in and out, functioning similar to a series of lungs.