Gottipati M.K.,University of Alabama at Birmingham |
Kalinina I.,University of California at Riverside |
Bekyarova E.,University of California at Riverside |
Bekyarova E.,Carbon Solutions, Inc |
And 5 more authors.
Nano Letters | Year: 2012
We report the use of chemically functionalized water-soluble single-walled carbon nanotubes (ws-SWCNTs) for the modulation of morpho-functional characteristics of astrocytes. When added to the culturing medium, ws-SWCNTs were able to make astrocytes larger and stellate/mature, changes associated with the increase in glial fibrillary acidic protein immunoreactivity. Thus, ws-SWCNTs could have more beneficial effects at the injury site than previously thought; by affecting astrocytes, they could provide for a more comprehensive re-establishment of the brain computational power. © 2012 American Chemical Society.
Agency: Department of Defense | Branch: Navy | Program: STTR | Phase: Phase I | Award Amount: 100.00K | Year: 2006
The objective of the proposed research is to use chemistry to modify single-walled carbon nanotubes (SWNTs) and engineer the interfacial interaction with polymers to synthesize composite materials with enhanced mechanical, electrical and thermal properties. We will conduct research on the synthesis and properties characterization of SWNT-reinforced composites based on epoxies and vinyl esters. Our approach is to engineer the interface between SWNTs and the polymer matrix by tailored chemical modification of SWNTs, which is designed to impart processability and chemical compatibility of the nanotubes with the matrix and to allow controlled cross-linking with the polymer chain. The proposed effort will build on our expertise in chemically modified SWNTs and achievements in the development and characterization of advanced SWNT-reinforced nanocomposites. We have assembled a multi-disciplinary research team that includes renowned experts in the fields of nanoscience, nanoengineering, carbon nanotubes and composite materials, which together possesses the necessary expertise to accomplish this ambitious project which has the potential to significantly advance the nanocomposites utilized in naval, defense, aerospace and commercial industries.BENEFITS: The developments in this project will lead to single-walled carbon nanotube reinforced epoxy and vinyl ester composites with enhanced performance. Markets for such advanced composites are widely available in the naval, defense and aerospace industries. Additionally, the developed composites are promising candidates for structural components in civil transportation and can find applications in automobile parts, fascia for buildings, reinforcement of bridges, and ducts. Other applications include coatings, adhesives and electronics.
Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase II | Award Amount: 471.60K | Year: 2014
This project aims to develop solid-state hybrid energy storage devices with nanostructured electrode materials combined with an ionic liquid-based electrolyte. The main objective of Phase II is design and fabrication of a hybrid energy storage system,
Agency: Department of Defense | Branch: Navy | Program: STTR | Phase: Phase II | Award Amount: 484.74K | Year: 2010
New material systems are required as a result of advanced performance criteria for the next generation destroyer program and other Navy ships. As a part of these requirements there is high demand for high strength structural composites. The objective of the STTR Phase II project is to develop high strength and light weight structural composites utilizing functionalized single-walled carbon nanotubes (SWNTs) as a nanoscale reinforcement. We propose to significantly increase the out-of-plane mechanical properties of the carbon fiber/epoxy composites by the introduction of SWNTs; SWNTs are considered to be the ideal reinforcing agent for advanced polymer composites because of their tremendous mechanical strength, exceptional electronic and thermal properties, nanometer scale diameter, high aspect ratio and light weight. Our approach is to apply chemistry to modify the SWNTs and engineer the interfacial interaction with the resins, because the formation of a strong interface is a critical step in the efficient translation of the excellent mechanical properties of SWNTs into the composite materials. In Phase I of this STTR project we demonstrated the feasibility of utilizing chemically modified SWNTs for the VARTM fabrication of carbon fiber/epoxy composites and showed that the incorporation of SWNTs improved shear strength and preserved in-plane mechanical properties.
Carbon Solutions, Inc | Date: 2011-12-12
A closed-loop heat exchange system and related methods for harnessing subterranean heat energy from a subterranean zone having a passive heat transfer device with multiple operational modes for targeting hotspots within the subterranean zone and adjusting the rate of energy harnessed according to consumption demands. The system can also have at least one enhanced surface section for increasing the heat exchange efficiency and/or a variable pump for controlling the rate at which the working fluid travels through the passive heat transfer device.