Tech Exchange

Microfluidic System Moves Liquid Without Electricity

Many new devices need to move nano- and micro-scale quantities of liquid from an external source to a sensor. Technology has been developed to transport very tiny volumes of liquids without the need for electricity or other external energy source. The device is especially useful when surface forces overcome the flow in channels, or when high-precision control of rates and volume are needed. The surfaceenergy gradient coating technology produces enhanced capillary action in nano-scale plumbing to move and mix liquids, and to introduce chemicals or biologics for reactions.

Posted in: Tech Exchange, Techs for License

Read More >>

Software Recognizes Amblyopia in Early Childhood

In developed societies, amblyopia (i.e. lazy eye) is a leading cause of permanent vision loss under the age of 30. A research team implemented an electrophysiological method that recognizes the presence or lack of binocularity in children as young as six months of age. The method is also capable of identifying other childhood visual disorders that may potentially lead to amblyopia after age 3.

Posted in: Tech Exchange, Techs for License

Read More >>

Preservation of High-Water-Content Fruit

As fresh produce undergoes a number of processes from point of harvest to final products like yogurt, ice cream, pasta sauces, and frozen meals, its natural characteristics are altered. To ensure a fresh taste and texture, a company seeks technology, ingredients, or processes that preserve the natural characteristics of fruit or vegetables throughout processing. Solutions that enable frozen fruit or vegetables to have soft, fresh-like texture, appearance, color, and flavor characteristics are of high interest. Potential options include alternative freezing processes, partial dehydration/drying, water content modifiers, and ingredients or coatings to encapsulate structure.

Posted in: Tech Exchange, Techs for License, NASA Tech Needs

Read More >>

Removal of Kinetic Energy Associated with Transporting Light

A client seeks innovative ways to control the kinetic energy of moving products through high-speed manufacturing and filling processes. The company requires aluminum and tinplated food and beverage cans to be conveyed and transported during production without damage. Products are small (40-70 mm cylinder diameter), thin (wall thickness of ~100 microns), lightweight (

Posted in: NASA Tech Needs

Read More >>

Multiple-Input DC Converter Distributes Power from Battery

The Direct Electric Power Converter (D-EPC), a semiconductor switching circuit, controls power distribution among multiple DC power sources without using a DC-DC converter. During every pulse-width-modulation (PWM) cycle, the DEPC alternately activates one of the multiple inverter circuits, which are connected to the power sources. The converter has been proven experimentally to conduct charging operations and distribute power between two DC power sources having different voltages.

Posted in: Techs for License

Read More >>

Piezo Technology Offers Precise Actuation, Generates Less Heat

“VIVA” piezo technology enables a valve to be direct-operated. The piezo element is protected from the fluid stream to eliminate potential for clogging or contamination failure. The valve is directly shifted by the VIVA arm, and requires only a standard 40-micron air filter upstream. No minimum air pressure is needed for operation.

Posted in: Techs for License

Read More >>

Non-Invasive Intra-Cranial Pressure Monitoring

Because manned spaceflight still imposes unknown stresses on the human body, NASA is seeking non-invasive technological approaches for intra-cranial pressure measurement. A baseline must be established on the ground, and then periodic measurements will be taken during flight — possibly over several months to a year. For consistency, it is important for the same technology to be used both on the ground and in space. The method and equipment must operate independent of gravity and acceleration. Materials and designs for spaceflight should anticipate the potential for high radiation exposure.

Posted in: Tech Needs, NASA Tech Needs

Read More >>