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All News tagged "engineering"

oxidized MXene

A Dash of Salt Could Fortify MXene 'Super Materials' Against Oxidation

Researchers at Drexel University have removed one of the final barriers blocking new two-dimensional “super materials,” called MXenes, from widespread use in batteries, electronics devices, water treatment and health care technology. With the discovery that a common food additive, polyphosphate salt, can ward off oxidation and stabilize the materials, MXenes could be one step closer to commercial development.

MXene inkjet printing

Need More Energy Storage? Just Hit 'Print'

Drexel University researchers have developed a conductive ink made from a special type of material they discovered, called MXene, that was used by the Trinity College researchers to print components for electronic devices. The ink is additive-free, which means it can print the finished devices in one step without any special finishing treatments.
concrete road

Using Bacteria to Prevent Potholes Caused by Road Salt

Special bacteria that help form limestone and marble could soon have a new job on a road crew. Recent research from Drexel University’s College of Engineering shows how the bacteria, called Sporosarcina pasteurii, can be used to prevent the road degradation caused by ice-melting salt.
microscopic MXene

Expanding the Use of Silicon in Batteries, By Preventing Electrodes From Expanding

Silicon anodes are generally viewed as the next development in lithium-ion battery technology. Silicon’s ability to absorb more charge translates to longer battery life and smaller batteries, if researchers can check the physical expansion of the silicon that comes with charging. Research from Drexel University and the Trinity College in Ireland, suggests that adding MXene ink to the silicon electrode-making process would do just that.
MXenes

Controlling What Goes on 'Between the Sheets' is Key to Optimizing MXenes' Abilities

New research from the College of Engineering shows how to customize the properties of materials called MXenes, which have displayed exceptional abilities to conduct electricity and block electromagnetic radiation.

 

shower head

Drexel and Arizona State Researchers Look at Risk of Infection From Water in the Air at Home

Researchers from Arizona State University and Drexel University have developed a more detailed framework for understanding and managing the risk of transmitting a bacterial disease via water spray from sinks, showers and toilets. As continuous testing of indoor water is not always feasible, the guidelines can help to identify water use situations that could increase the risk of exposure.
playing cards

'Rippling' Under Pressure — From Playing Cards to Tectonic Plates, This is What Happens When Layered Materials are Pushed to the Brink

Looking deeper into the internal behavior of layered solids and formations— from graphene sheets, to wood laminates, to geological formations — researchers at Drexel University are gaining a better understanding of a buckling phenomenon that occurs within the layers of the materials as they are put under pressure.
capacitors

Addressing the Elephant in the Circuit — Finally, a Shrinkable Alternative for Capacitors

One of the last remaining unshrinkable obstacles blocking the progress of fully integrated, wearable technology is the clunky component that absorbs and disburses stray electricity and converts alternating current from a power source into the direct current used by most devices. Due to a meager selection of materials that can perform those diverse functions, these components — called electrolytic capacitors — tend to be a limiting factor when it comes to downsizing electronics. But a breakthrough by materials science and engineering researchers at Drexel University and Sungkyunkwan University in Korea could eventually replace them with a capacitor so thin and flexible that it’s literally painted on.
kidney dialysis patients

Standing in for a Kidney, MXene Materials Could Give Dialysis Patients the Freedom to Move

A type of two-dimensional layered material, created at Drexel University, has emerged as a candidate to assist in replacing the body’s waste filtration system in wearable kidneys.
MXene spray antenna

Drexel's Spray-On Antennas Could Be the Tech Connector of the Future

A group of researchers from the College of Engineering recently reported a method for spraying invisibly thin antennas, made from a type of two-dimensional, metallic material called MXene, that perform as well as those being used in mobile devices, wireless routers and portable transducers. 


ferroelectric domain wall material

Once a Performance Barrier, This Material Quirk Could Strengthen Our Telecommunication Connections

Researchers who study and manipulate the behavior of materials at the atomic level have discovered a way to make a thin material that enhances the flow of microwave energy. The advance, which could improve telecommunications, sheds new light on structural traits, generally viewed as static and a hindrance, that, when made to be dynamic, are actually key to the material’s special ability.
crystalsome

Drexel's Polymer Pill Proves it Can Deliver

Selecting the right packaging to get precious cargo from point A to point B can be a daunting task at the post office. For some time, scientists have wrestled with a similar set of questions when packaging medicine for delivery in the bloodstream: How much packing will keep it safe? Is it the right packing material? Is it too big? Is it too heavy? Researchers from Drexel University have developed a new type of container that seems to be the perfect fit for making the delivery.