Nanomaterials

‘MXene’mum production—two improvements in MXene processing

By Lisa McDonald / March 20, 2020

Industry must be able to mass produce high-quality MXenes if MXene-based devices are to take off. Two Drexel groups published papers describing new ways to improve processing, by scaling up production and removing water from chemical synthesis.

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Data that lasts—modification of ferroelectric transistor structure improves memory retention

By Lisa McDonald / March 10, 2020

Ferroelectric field-effect transistors are nonvolatile memory devices that nondestructively read stored data. However, data retention times in these devices are short. Purdue University researchers suggest a modification to conventional Fe-FET structure could overcome this obstacle.

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An electrifying matter—two studies announce new electronic states of matter

By Lisa McDonald / March 6, 2020

Classic physics teaches there are four states of matter, but better understanding of matter’s more exotic properties has led to identification of additional states. New studies suggest the possibility of two new electronic states of matter.

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Observing at the extremes— nanomechanical materials testing at over 2,000°C

By Lisa McDonald / March 3, 2020

Performing microscale experiments at ultrahigh temperatures is difficult because the high heat can destroy the testing mechanisms. Researchers demonstrated a new method, which combines targeted laser heating and transmission electron microscopy, that may overcome this problem.

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Films fix flaws: MXenes for guided bone regeneration

By Lisa McDonald / February 11, 2020

A lot of research focuses on environmental and energy applications of MXenes, but there are plenty of potential biomedical applications as well. Three researchers at Sichuan University in China investigate using MXene films as a barrier membrane in guided bone regeneration.

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Stop bleeding without adhering—carbon nanofiber coating offers superior bandage material

By Lisa McDonald / January 28, 2020

Materials to stop bleeding should ideally minimize blood loss while not sticking to the wound. Researchers from ETH Zurich and the National University of Singapore discovered coating gauze with a mix of silicone and carbon nanofibers achieves both objectives.

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Nanospinning performance fabrics—the next generation of gear is weaving materials science into outerwear

By April Gocha / December 31, 2019

By incorporating electrospun nanofibers, The North Face’s new Futurelight gear is designed to be more breathable and lightweight than any other performance material currently on the market.

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From grain-sized to centimeter scale—technique makes mass production of metalenses possible

By Lisa McDonald / December 13, 2019

Metalenses, or flat surfaces that use nanostructures to focus light, are poised to revolutionize cameras, sensors, and displays—if the lenses can be mass produced. Researchers at the Harvard School of Engineering and Applied Sciences found deep-ultraviolet projection lithography can solve this production challenge.

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Cleaning the planet: A review on MXenes for water treatment and environmental remediation applications

By Lisa McDonald / December 10, 2019

Characteristic MXene properties have led to growing research interest for MXenes in environmental remediation and water treatment applications. A recent review by Hamad Bin Khalifa University and Drexel University researchers discusses current studies on MXenes and suggests ideas for future experiments.

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Graphene: Softer through bending

By Lisa McDonald / November 19, 2019

Different research groups have measured different values for bending stiffness in graphene that span across orders of magnitude. Researchers led by the University of Illinois at Urbana-Champaign now say the different values stem from the fact that graphene becomes softer the more you bend it.

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