Tech Exchange

Non-Damaging Cell Wall Defrosting Method and Apparatus

A defrosting technology was developed to protect cell walls and the quality of frozen products during defrosting. Potential applications include the medical and pharmaceutical industries, cosmetic materials, and foods. The system seldom breaks cell walls because of its quick temperature rising and its high-level uniform heating. In the frozen food field, this system can prevent dripping, and loss of quality and nutrition.

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Embedded Antenna for Cellular Phones

900/ 1800/ 1900/ 2200 MHz & Bluetooth. Advanced, patented antenna technology for high-performance cellular phones. This miniaturized antenna is designed for embedding into mobile telephones to provide maximum reception and reliability. It allows packing high performance and reliability into a tiny package based on surface mount technology (SMT). Higher gain achieved through Leaky Wave optimization. Advantages include low profile, high sensitivity, omni- directional, wide bandwidth, lightweight, and miniature size.

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27MHz Embedded Antenna for RF Mouse

Tiny antenna with huge capabilities. Advanced, patented antenna technology easily embedded into a wide range of products including wireless mouse, RF keyboard, gamepads, etc. It allows packing high performance and reliability into a small package and higher gain achieved through Leaky Wave optimization.

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Opportunity to Collaborate in a New CNT Array Adhesion Tape

A US government funded company is seeking industry support for further testing and development of its carbon nanotube (CNT) adhesive. The time frame for testing is the 3th quarter of 2007.

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Reusable Adhesive Thermal Interface Material (TIM) To Improve the Contact Thermal Conductance

Current TIM technologies include thermal greases or pastes, phase change materials, solders and thermally conductive adhesive tapes. The thermal conductivity of the best thermal greases available in the market are on the order of 10^5 W/m^2 -K. However, thermal greases, which are single use applications, are oily so their utilization is messy, making them difficult to apply in a thin, uniform coat. This reusable technology employs vertically aligned carbon nanotubes (CNTs) to bridge the interfaces. By using a CNT array as dry interface material, his technology can perform as a thermally conductive tape that provides not only good thermal conducting ability but also strong mechanical bonding between the mating surfaces. It has been shown that a small fraction of CNTs as filling material could induce a 125% enhancement in thermal transport. This interface material can be directly applied to any interface that needs high thermal conductivity.

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Reusable, Dry Adhesive Material Utilizing Vertically Aligned Multiwalled Carbon Nanotube Array

A novel dry adhesive is being developed that can mimic the hairs on a gecko's foot using vertically aligned multiwalled carbon nanotube (CNT) array. The use of CNT array as dry adhesive material allows reproducing biological adhesion structures and generates fairly strong adhesion strength (over 100 N per centimeter square). CNTs are known to have extraordinary mechanical, thermal and electrical properties. This adhesive can be bent repeatedly with large deflection without failure, which intrinsically results in a reusable or re-attachable dry adhesive. The highly hydrophobic property of CNTs makes them free from the clumping problem, which the polymer based synthetic hair structures face. This product's adhesion is so effective it can be directly applied to glass.

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Novel Nano-Structured Concept for Thermal Protection System

Lightweight carbon-carbon (C/C) composites produced by pressure-assisted co- polymerization of carbon fibers, hydrocarbons and fullerenes have excellent mechanical properties and high thermal stability that make them ideal for thermal protection applications.

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