The University of Louisville (U of L) is a public university in Louisville, Kentucky, a member of the Kentucky state university system.
When founded in 1798, it was the first city-owned public university in the United States and one of the first universities chartered west of the Allegheny Mountains. The university is mandated by the Kentucky General Assembly to be a “Preeminent Metropolitan Research University”. U of L enrolls students from 118 of 120 Kentucky counties, all 50 U.S. states, and 116 countries around the world.
Researchers from the University of Louisville Health Sciences Center participated in the development of a highly effective vaccine against cervical cancer in 2006, the first fully self-contained artificial heart transplant surgery, the first successful hand transplantation, and the development of the Pap smear test. The University Hospital is also credited with the first civilian ambulance, the nation’s first accident services, now known as an emergency room (ER), and one of the first blood banks in the US.
Between 1999 and 2006 U of L was one of the fastest growing medical research institutions according to National Institutes of Health rankings. As of 2006, the melanoma clinic ranked third in among public universities in NIH funding, the neurology research program fourth, and the spinal cord research program 10th.
The Latest Updated Research News:
University of Louisville research articles from Innovation Toronto
- System that creates on-demand ‘nanotube forests,’ could help create electronic devices – April 23, 2016
- Research team finds a way to produce hydrogen using solar energy and water vapor – March 28, 2016
- Physicist Discovers New 2D Material that could Upstage Graphene – March 1, 2016
- Breath Analysis Offers Non-invasive Method to Detect Early Lung Cancer – May 11, 2014
- Breakthrough: How scientists are 3D printing a human heart that will work better than yours
- Spinal Stimulation Helps Four Patients with Paraplegia Regain Voluntary Movement
- Researchers Work to Bring Cheaper, ‘Greener’ Lighting to Market with Inkjet-printed Hybrid Quantum Dot LEDs
- New Transplant Method May Allow Kidney Recipients to Live Life Free of Anti-Rejection Medication
- “Breakthrough” in heart attack treatment
- Paralyzed man regains voluntary leg movement with electrode array implant
- How Microbes Will Clean Up the Deepwater Horizon Oil Spill
A system that uses a laser and electrical current to precisely position and align carbon nanotubes represents a potential new tool for creating electronic devices out of the tiny fibers.
Because carbon nanotubes have unique thermal and electrical properties, they may have future applications in electronic cooling and as devices in microchips, sensors and circuits. Being able to orient the carbon nanotubes in the same direction and precisely position them could allow these nanostructures to be used in such applications.
However, it is difficult to manipulate something so small that thousands of them would fit within the diameter of a single strand of hair, said Steven T. Wereley, a professor of mechanical engineering at Purdue University.
“One of the things we can do with this technique is assemble carbon nanotubes, put them where we want and make them into complicated structures,” he said.
New findings from research led by Purdue doctoral student Avanish Mishra are detailed in a paper that has appeared online March 24 in the journal Microsystems and Nanoengineering, published by the Nature Publishing Group.
The technique, called rapid electrokinetic patterning (REP), uses two parallel electrodes made of indium tin oxide, a transparent and electrically conductive material. The nanotubes are arranged randomly while suspended in deionized water. Applying an electric field causes them to orient vertically. Then an infrared laser heats the fluid, producing a doughnut-shaped vortex of circulating liquid between the two electrodes. This vortex enables the researchers to move the nanotubes and reposition them.
“When we apply the electric field, they are immediately oriented vertically, and then when we apply the laser, it starts a vortex, that sweeps them into little nanotube forests,” Wereley said.
The research paper was authored by Mishra; Purdue graduate student Katherine Clayton; University of Louisville student Vanessa Velasco; Stuart J. Williams, an assistant professor of mechanical engineering at the University of Louisville and director of the Integrated Microfluidic Systems Laboratory; and Wereley. Williams is a former doctoral student at Purdue.
The technique overcomes limitations of other methods for manipulating particles measured on the scale of nanometers, or billionths of a meter. In this study, the procedure was used for multiwalled carbon nanotubes, which are rolled-up ultrathin sheets of carbon called graphene. However, according to the researchers, using this technique other nanoparticles such as nanowires and nanorods can be similarly positioned and fixed in vertical orientation.
The researchers have received a U.S. patent on the system.