Molex offers breakthrough Polymicro Technologies nanocapillary

Molex now offers the new Polymicro Technologies nanocapillary, a breakthrough in the one-micron size of traditional products.

Polymicro Technologies' nanocapillary product line has a tube internal diameter (ID) ranging from 200 to 1,000 nanometers (0.2 to 1.0 micron). Conventional capillary products have an internal diameter of no less than 1 micron. Prior to the development of nanocapillary, for scientific, industrial, and medical applications , the primary choices for substrates smaller than 1 micron in diameter included wet etching or ion milling, both of which were extremely costly and relatively difficult to employ.

Joe Macomber, Molex Separation Science Product Manager, said: "Polymicro Technologies?'s capillaries are built on industry-leading features that deliver cost-effective, high-performance capillary products in sizes less than 1 micron. These capillaries have proven to be packageable. The substrate for integrity and leak testing also has the potential for single-molecule research and analysis. SEM verification ensures diameter control."

Synthetic fused silica has a mirror-like smooth inner surface for stable flow of liquids and gases. The metal ion content of the material is low, making the inner surface inert, facilitating efficient fracture or cutting operations and achieving custom pipe lengths. In addition, the polyimide coating on the outside of the pipe provides excellent wear resistance during handling and use, allowing the pipe to be used at temperatures from -65oC to +350oC.

Relevant scientific applications include analytical chemistry, chromatography, nanofluidics, direct inlet monitoring, sensing based on evanescent wave absorption, and coaxial optics and fluidic components. Industrial applications include shell leak testing, evaporative cooling systems, petroleum analysis, and catalytic research. Medical applications include drug delivery, flow control systems, clinical and diagnostic devices, and wearable drug delivery devices.

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