Abstract: A device includes a handle including a mount surface, and a display unit rotatably arranged at the mount surface and reversibly switchable between a first state and a second state. The display unit includes a display surface perpendicular to a rotation axis of the display unit. The display surface faces away from the mount surface in both the first state and the second state. A dimension of the display unit in the first state along a lateral direction of the handle is smaller than the dimension of the display unit in the second state along the lateral direction of the handle.

Abstract: A multimodal method of three-dimensionally (3D) printing a light-emitting diode (LED) display includes extrusion printing a first conductive layer utilizing a first extrusion printing nozzle set, spray printing an active layer onto the first conductive layer utilizing a spray printing nozzle, and extrusion printing a second conductive layer utilizing a second extrusion printing nozzle set.

Abstract: The describes example systems, devices, and techniques. In one example, a device includes a body extending away from a substrate, which includes a first end with an open-facing port configured to allow introduction of a tissue sample, and a second end that forms an open outlet proximal the major surface of the substrate. At least a portion of the body includes therein a tissue chamber for the tissue sample. At least one microfluidic channel on the major surface of the substrate is fluidly connected to the tissue chamber, and includes an inlet upstream of the tissue chamber and an outlet downstream of the tissue chamber. A separation element is between the tissue chamber and the at least one microfluidic channel. The tissue chamber, the separation element and the microfluidic channel occupy a single layer on the substrate.

Abstract: A printed structure including a plurality of overlying layers of elongate polymeric filaments stacked on a surface of a substrate. The elongate polymeric filaments are stacked on each other along their lengths to form a liquid impermeable, self-supporting wall. The liquid impermeable self-supporting wall forms a wall angle of about 30° to about 90° with respect to a plane of the surface of the substrate.

Abstract: A printed structure including a plurality of overlying layers of elongate polymeric filaments stacked on a surface of a substrate. The elongate polymeric filaments are stacked on each other along their lengths to form a liquid impermeable, self-supporting wall. The liquid impermeable self-supporting wall forms a wall angle of about 30° to about 90° with respect to a plane of the surface of the substrate.