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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 595 records · Page 33
All sourcesNASA NTRSDOE OSTI
DOE OSTI2016

Nanolipoprotein particles and related methods and systems for protein capture, solubilization, and/or purification

Provided herein are methods and systems for assembling, solubilizing and/or purifying a membrane associated protein in a nanolipoprotein particle, which comprise a temperature transition cycle performed in presence of a detergent, wherein during the temperature transition cycle the nanolipoprotein components are brought to a temperature above and below the gel to liquid crystalling transition temperature of the membrane forming lipid of the nanolipoprotein particle.

Chromy, Brett A.↗
DOE OSTI2016

Nanolipoprotein particles and related methods and systems for protein capture, solubilization, and/or purification

Provided herein are methods and systems for assembling, solubilizing and/or purifying a membrane associated protein in a nanolipoprotein particle, which comprise a temperature transition cycle performed in presence of a detergent, wherein during the temperature transition cycle the nanolipoprotein components are brought to a temperature above and below the gel to liquid crystalling transition temperature of the membrane forming lipid of the nanolipoprotein particle.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2015

Switchable Polarity Solvent Forward Osmosis Water Purification Technology for Treatment of Produced Water

Process and economic modeling suggest that the SPS-FO water treatment process can purify approximately 90% of a produced water feed stream with salinity similar to that of seawater. If the produced water feed stream is supplied at a temperature of ~100°C, SPS-FO process thermal energy requirements could be met entirely through use of heat provided by the feed stream. If the produced water feed stream is supplied at a temperature in excess of ~120°C, SPS-FO process electrical and thermal energy requirements could be met using energy in the feed stream. Though this process is likely to have higher costs than RO, it has an advantage in that it can recover a larger fraction of the feed stream over a wider range of salinity. This can make it economically attractive in offsetting disposal costs of co-produced waters. Bench scale testing currently being performed at the Idaho National Laboratory is advancing SPS-FO technology with the goal of field testing a prototype system in coming years.

15 GEOTHERMAL ENERGY↗
DOE OSTI2017

Purification of carbon nanotubes via selective heating

The present invention provides methods for purifying a layer of carbon nanotubes comprising providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein the precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; selectively heating the first carbon nanotubes; and separating the first carbon nanotubes from the second carbon nanotubes, thereby generating a purified layer of carbon nanotubes. Devices benefiting from enhanced electrical properties enabled by the purified layer of carbon nanotubes are also described.

36 MATERIALS SCIENCE↗
DOE OSTI2018

Hydrogen purification systems for PEM fuel cells

A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.

08 HYDROGEN↗
DOE OSTI2019

Purification of ultra-high saline and contaminated water by multi-stage ion concentration polarization (ICP) desalination

A water stream is passed between two juxtaposed similar ion exchange membranes (AEMs or CEMs), forming an ion depletion and ion enrichment zones when an electric field is applied. As cations are selectively transferred through the CEMs, for example, anions are relocated in order to achieve electro-neutrality, resulting in the concentration drop (increase) in ion depletion (enrichment) zone. Trifurcation of the output channel allows collection of concentrated, dilute and intermediate streams, with the intermediate stream serving as input to the next stage of a serialized implementation.

Kim, Bumjoo↗