Abstract: A flexible multi-material structure comprises a plurality of overlapping rings that form a generally circular shape perpendicular to a longitudinal axis of the structure; an internal compliant hollow frame having a circumference corresponding to the generally circular shape of the plurality of rings, the internal frame comprising: a plurality of connection clips wherein each connection clip is attached one of the plurality of rings, the internal frame and connection clips defining a longitudinal spacing between the plurality of rings, each of the plurality of rings is shaped to minimize contact with adjacent rings when the structure is articulated, each ring including a spherical profile along an aft interior region which nests with a forward outer region of an adjacent ring, wherein connections between the rings and the frame allows independent motion of the rings and frame, allowing each ring to pivot about a geometric center of the spherical profile.

Abstract: An apparatus to hold hollow fibers for transporting fluid may include a channel such as a connecting channel, for example formed in a substrate, including extensions or ridges to hold a hollow fiber. The pullout force for the hollow fiber may exceed the mechanical strength of the hollow fiber. A method for making such a device, or for making a nanofluidic connector, may include forming or drilling holes on a substrate along a line, where the holes are generally perpendicular to the substrate and have a desired depth.