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Nanotechnology Spotlights

Nanotechnology and nanomaterials for camouflage and stealth applications

stealth_fighterThis article briefly describes how nanomaterials and nanotechnology can be useful in the strategic area of camouflage and stealth technology. The section on threat perception briefly describes about various sensors and platforms from where those sensors can be operated for the purpose of surveillance, detection and identification of military objects. Prominent nanomaterials, which can find applications in futuristic stealth...

Posted: Jan 30, 2015

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3D printed 'smart glue' leverages DNA assembly at the macroscale

colloidal_gelDesigning systems that build themselves is one of the great dreams of nanotechnology researchers, and they are taking great strides towards developing such 'bottom-up' nanotechnology fabrication techniques. Fabrication processes based on DNA might change this: DNA origami have been heralded as a potential breakthrough for the creation of nanoscale devices. Researchers have now developed methods to assemble DNA-functionalized...

Posted: Jan 29, 2015

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Nanowaste - Nanomaterial-containing products at the end of their life cycle

landfillAt the end of their product life cycle, nanomaterials can enter waste treat ment plants and landfills via diverse waste streams. Little, however, is known about how nanomaterials behave in the disposal phase and whether potential environmental or health risks arise. The current assumption is that stable nanoparticles are neither chemically nor physically altered in waste incineration plants and that they accumulate especially...

Posted: Jan 27, 2015

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Fully transparent, rollable electronics built with a graphene/carbon nanotube backbone

transparent_electronicsResearchers have successfully built rollable and transparent electronic devices that are not only lightweight, but also don't break easily. They managed to overcome two major challenges associated with the manufacture of flexible electronics: The temperature restriction of plastic substrates and the difficulty of handling flexible electronics during the fabrication process. The team rolled their transistor devices 100 times...

Posted: Jan 23, 2015

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Multiplexing biosensors on a chip for human metabolite detection

hydrogelSo far, there have been very few research reports on single electrode materials that enable the simultaneous detection of different metabolites - such as glucose, urea, cholesterol, and triglycerides - in whole blood. Moreover, it is a considerable challenge to integrate all required materials and devices on a single chip to ultimately produce a multiplexing biosensor array. In new work, researchers demonstrate that biosensors...

Posted: Jan 22, 2015

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Elemental 2D analogues of graphene: silicene, germanene, stanene, phosphorene

2D_materialA comprehensive analysis of the fundamental properties, synthesis approaches and the future prospects of silicene, germanene, stanene, and phosphorene. It covers the literature on the fundamental properties of graphene analogous elemental sheets, inclusive of both theoretical and experimental knowledge. Various bottom-up synthesis techniques and top-down exfoliation approaches for the fabrication of two-dimensional elemental...

Posted: Jan 21, 2015

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Biodegradable graphene can radio-thermally ablate radiation and chemo resistant cancer cells

Transferrin-conjugated_grapheneResearchers have developed a simple method to thermally ablate highly resistant cancer cells using targeted biodegradable graphene nanoparticles. They found that graphene can convert non-ionizing radio waves - the same that are used in FM radios - into heat energy at microscopic levels. This heat is sufficient to completely destroy proteins and DNA inside individual cancer cells, irrespective of any kinds of resistant mechanisms...

Posted: Jan 16, 2015

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First demonstration of micromotor operation and payload release in living organism (w/video)

micromotorNew findings address the challenges of operating synthetic motors in living organisms through the use of biocompatible motors that are powered by body fluid (acidic stomach environment). As the zinc body of the motor is dissolved by the acid fuel, the motors are self-destroyed, leaving no harmful chemicals behind. The study reports on the distribution, retention, cargo delivery and toxicity profile of zinc/polymer-based microrockets...

Posted: Jan 15, 2015

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