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Nanotechnology Spotlights

Novel nanostructure improves photothermal therapy of deep tumors

hollow_sphereMoS2 nanosheets have shown great prospect as a near-infrared light (NIR) absorbing agent for PTT applications due to their unique photoelectric property, low cost and good biocompatibility. However, the absorbance of nanosheets in the NIR region is not specific and strong, and the photothermal conversion efficiency of MoS2 based materials need to be enhanced. In new work, researchers have proposed a novel MoS2 nanostructure,...

Posted: Apr 28, 2016

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Dendrite-free lithium metal batteries through evenly distributed lithium ions

lithium_ionsToday, the best performing battery in terms of specific energy and specific power is the secondary lithium-metal (Li-metal). However, uncontrolled dendrite growth during Li depositing/stripping in rechargeable Li metal based batteries has prevented their practical applications over the past 40 years. To address this issue, researchers have now proposed a novel method of modulating the lithium ion adsorption to suppress lithium...

Posted: Apr 19, 2016

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New phenomena in the ultrasonic scattering in nanofluids

nanofluidicsUltrasonics is a promising, non-invasive characterization technique for fluids. The scattering of ultrasound through colloidal suspensions allows determination of accurate particle size distribution, density, and concentration. Controlling these properties enables accurate characterization of nanomedicine drugs and understanding of nanoparticles present in biological systems. Ultrasound is particularly helpful in analyzing...

Posted: Apr 15, 2016

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Phosphorene as a promising anchoring material for lithium-sulfur batteries

phosphoreneLithium-sulfur (Li-S) batteries, which employ sulfur as cathode and metallic lithium as anode materials, have been extensively studied as promising alternatives to the widely used lithium-ion batteries because - theoretically - they can render 3-6 times higher energy density. In practice, though, it has proven challenging to approach that theoretical value. Specifically, the rapid capacity fading, low Coulombic efficiency,...

Posted: Apr 14, 2016

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Novel 2D spacer materials for surface plasmon coupled emission sensing

spacer_layerNanomaterials like graphene and fullerenes provide an excellent platform to enhance weak signals from biomarkers. While graphene and fullerenes perform very well for detecting isolated biomarkers, their ability to amplify emission of biomarkers in a real physiological milieu is limited due to their strong interactions with other biomolecules such as proteins and lipids. A team of researchers now have developed new sensing...

Posted: Apr 11, 2016

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An analogue smart skin that is self-powered

smart_skinIn order to make robots and robotic technology more human-like and more human-friendly, smart skin technology is a critical element that helps robots sense the world. These electronic or smart skins could help machines to accurately perceive the environment and better assist human owners. By applying the triboelectric effect and planar electrostatic induction, researchers for the first time have created a self-powered analogue...

Posted: Apr 08, 2016

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Ionic purity of nanoparticles is key to switching between purification and contamination regimes in liquid crystal devices

liquid_crystalModern liquid crystals devices utilize high resistivity liquid crystals characterized by negligibly small concentration of mobile ions. However, these devices are prone to uncontrolled ionic contamination. This contamination can easily happen at any stage of the device fabrication or while operating the device. Ions in liquid crystals can compromise the overall performance of the device by leading to many negative side effects...

Posted: Mar 30, 2016

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Two new developments for in-situ electrochemical detection

nanowire_deviceTo explore the intrinsic mechanisms of the electrochemical reactions of porous graphene oxide in situ, the single-nanowire electrochemical probe is an effective tool. Although graphene is usually used as an additive in active materials to improve the electrochemical performance, how graphene influences the electrochemical performance and reaction mechanisms of electrode materials is under dispute. To address these issues,...

Posted: Mar 29, 2016

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