Drs. Mariya V. Khodakovskaya, UALR assistant professor of applied science, and Alex Biris, director of the Nanotechnology Center at UALR, published the results of their findings in this month’s issue of ACS Nano.
The results of the UALR experiments demonstrated, apparently for the first time, that carbon nanotubes can penetrate thick seed coat and quicker water uptake inside seeds.
“The activated process of water uptake could be responsible for the significantly faster germination rates and higher biomass production for the plants that were exposed to carbon nanotubes,” the scientists said.
To test their theory that synthesized carbon nanotubes could affect germination and development of crop seedlings, the UALR team placed sterile tomato seeds on standard agar medium supplemented with different concentrations of carbon nanotubes. A medium without the tubes was used for controlled experiments.
Tomato seeds placed on medium with various concentrations of carbon nanotubes (CNTs) germinated on the third day, while the tomato seeds placed on regular mediums had not germinated by that time. The germination percentage rates during the next days were dramatically higher for seeds that were treated with nanoparticles.
The germination percentage for seeds that were placed on regular medium averaged 32 percent in 12 days and 71 percent in 20 days, while germination percentage of the seeds placed on medium supplemented with CNTs averaged 74 to 82 percent in 12 days and 90 percent in 20 days.
The scientists report the first evidence that CNTs penetrate the hard outer coating of seeds, and have beneficial effects.
Nanotube-exposed seeds sprouted up to two times faster than control seeds and the seedlings weighed more than twice as much as the untreated plants. Those effects may occur because nanotubes penetrate the seed coat and boost water uptake, the researchers said.
Joan I. Duffy | Newswise Science News
At last, butterflies get a bigger, better evolutionary tree
16.02.2018 | Florida Museum of Natural History
New treatment strategies for chronic kidney disease from the animal kingdom
16.02.2018 | Veterinärmedizinische Universität Wien
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
Let’s say the armrest is broken in your vintage car. As things stand, you would need a lot of luck and persistence to find the right spare part. But in the world of Industrie 4.0 and production with batch sizes of one, you can simply scan the armrest and print it out. This is made possible by the first ever 3D scanner capable of working autonomously and in real time. The autonomous scanning system will be on display at the Hannover Messe Preview on February 6 and at the Hannover Messe proper from April 23 to 27, 2018 (Hall 6, Booth A30).
Part of the charm of vintage cars is that they stopped making them long ago, so it is special when you do see one out on the roads. If something breaks or...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
16.02.2018 | Information Technology
16.02.2018 | Health and Medicine
16.02.2018 | Physics and Astronomy