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May 19, 2017

Nanotechnology – SciPol Daily, 19 May 2017

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  • Nanotechnology

EurekAlert! – Using graphene to create quantum bits

Researchers have investigated a nonlinear graphene-based quantum capacitor, compatible with cryogenic conditions of superconducting circuits, and based on two-dimensional (2D) materials. When connected to a circuit, this capacitor has the potential to produce stable qubits and also offers other advantages, such as being relatively easier to fabricate than many other known nonlinear cryogenic devices, and being much less sensitive to electromagnetic interference. – Graphene-nanotube hybrid boosts lithium metal batteries

Rice University scientists have created a rechargeable lithium metal battery with three times the capacity of commercial lithium-ion batteries by resolving something that has long stumped researchers: the dendrite problem. The Rice battery stores lithium in a unique anode, a seamless hybrid of graphene and carbon nanotubes. The material first created at Rice in 2012 is essentially a three-dimensional carbon surface that provides abundant area for lithium to inhabit. – Holographic microscope provides a new tool for nanomedicine to rapidly measure degradation of drug loaded nanoparticles

UCLA researchers have developed a cost-effective method to rapidly monitor the degradation of drug-carrying nanoparticles using a chip-scale microscope. This nanoparticle characterization platform is based on holography and can accurately monitor the size changes of nanocapsules undergoing degradation, while releasing the contents of their drug cargo. This research provides scientists with a powerful measurement tool that can be used to design better nanocapsules for drug delivery and other nanomedicine-related applications.

R&D Magazine – Researchers Solve Graphene’s Flammability Problem, Open Door to Large-Scale Production

Graphene has shown significant promise—with potential applications in the biomedical, electrical, energy, and environmental spaces—and success has been seen in many small-scale applications. But scaling up the production of graphene-based materials is problematic, and potentially dangerous, because graphene oxide, a flake-like intermediate for making graphene from graphite has been proven to possess a fire hazard. Ryan Tian, associate professor of inorganic chemistry, and his team at the University of Arkansas set out to solve this problem.

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