Nanowire-Paper Offers Strength, Flexibility
FAYETTEVILLE, Ark. — University of Arkansas researchers have created assemblies of nanowires that show potential in applications such as armor, flame-retardant fabric, bacteria filters, oil cracking, controlled drug release, decomposition of pollutants and chemical warfare agents.
This two-dimensional “paper” can be shaped into three-dimensional devices. It can be folded, bent and cut, or used as a filter, yet it is chemically inert, remains robust and can be heated up to 700 degrees Celsius.
“Humans have used paper made from natural fibers for thousands of years,” said Z. Ryan Tian, assistant professor of chemistry and biochemistry in the J. William Fulbright College of Arts and Sciences. “With this technology, we are entering a new era.” The researchers published their findings in the Journal of Physical Chemistry B.
Tian and his team used a hydrothermal heating process to create long nanowires out of titanium dioxide and from there created free-standing membranes. The resulting material is white in color and resembles regular paper. Further, the material can be cast into different three-dimensional shapes, with different functions. The researchers have created tubes, bowls and cups using this process. These three-dimensional hollow objects can be manipulated by hand and trimmed with scissors, the researchers report.
The university has applied for patent protection on the process used to create the free-standing membranes for filtration and catalysis, and is looking for industrial partners to license and commercialize various applications of the nanopaper technology.
Chancellor Steinmetz, Big Red, Coach Morris and Dean Fields teamed up for a new Welcome Back video to kick off the Fall 2019 semester.
Food Science Graduate Student Received Scholarship and Recognition from International Scientific Societies
Asmita Singh, a graduate student in the Food Science Department, has earned the Feeding Tomorrow Graduate Scholarship of $2,000 from the Institute of Food Technologists.
Artwork by Laura Terry, a U of A architecture professor, was selected for inclusion in a national juried show at California State Polytechnic University, Pomona.
More than 450 students across Arkansas participated in College of Engineering summer camps as the program expanded to 25 camps in eight locations.
Summer construction on campus nears completion as the next set of projects begin.