Glass can bend over and over again on a nanoscale
Brigham Young University researchers have developed new glass technology that could add a new level of flexibility to the microscopic world of medical devices.
Led by electrical engineering professor Aaron Hawkins, the researchers have found a way to make the normally brittle material of glass bend and flex. The research opens up the ability to create a new family of lab-on-a-chip devices based on flexing glass.
"If you keep the movements to the nanoscale, glass can still snap back into shape," Hawkins said. "We've created glass membranes that can move up and down and bend. They are the first building blocks of a whole new plumbing system that could move very small volumes of liquid around."
While current lab-on-a-chip membrane devices effectively function on the microscale, Hawkins' research, recently published in Applied Physics Letters, will allow equally effective work at the nanoscale. Chemists and biologists could use the nanoscale devices to move, trap and analyze very small biological particles like proteins, viruses and DNA.
So why work with glass? According to lead study author and BYU Ph.D. student John Stout, glass has some great perks: it's stiff and solid and not a material upon which things react, it's easy to clean, and it isn't toxic.
"Glass is clean for sensitive types of samples, like blood samples," Stout said. "Working with this glass device will allow us to look at particles of any size and at any given range. It will also allow us to analyze the particles in the sample without modifying them."
The researchers believe their device could also mean performing successful tests using much smaller quantities of a substance. Instead of needing several ounces to run a blood test, the glass membrane device created by Hawkins, Stout and coauthor Taylor Welker would only require a drop or two of blood.
Hawkins said the device should also allow for faster analysis of blood samples: "Instead of shipping a vial of blood to a lab and have it run through all those machines and steps, we are creating devices that can give you an answer on the spot."
There is an increased demand for portable on-site rapid testing in the healthcare industry. Much of this is being realized through these microfluidic systems and devices, and the BYU device could take that testing to the next level of detail.
"This has the promise of being a rapid delivery of disease diagnosis, cholesterol level testing and virus testing," Hawkins said. "In addition, it would help in the process of healthcare knowing the correct treatment method for the patient."
Todd Hollingshead | EurekAlert!
Research finds new molecular structures in boron-based nanoclusters
13.07.2018 | Brown University
3D-Printing: Support structures to prevent vibrations in post-processing of thin-walled parts
12.07.2018 | Fraunhofer-Institut für Produktionstechnologie IPT
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
16.07.2018 | Physics and Astronomy
16.07.2018 | Life Sciences
16.07.2018 | Earth Sciences