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Virus-templated fabrication of piezoelectric nanogenerators

By Maja Bosanac
8 December 2013

kaist-virus-nanogenerator-1A group of researchers at the Korea Advanced Institute of Science and Technology (KAIST) has synthesized a nanogenerator – a flexible piezoelectric energy harvesting device based on biological templates. The biotemplated nanogenerator is low cost and it can be self-powered by simple finger movements that could be used to power small commercial LCD screens and… »

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Piezoelectric “taxels” enable human-like tactile sensing

By Damir Beciri
1 May 2013

piezotronic-transistors-1Researchers at Georgia Insittute of Technology (Georgia Tech) developed arrays piezotronic transistors capable to convert mechanical motion into electronic signals. Named “taxels”, these touch-sensitive transistors could provide significant improvements in resolution, sensitivity and functionality for tactile sensing. The arrays could aid in robotics as tactile sensors, provide better security in handwritten signatures and offer new… »

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Egg-yolk inspired sulfure cathodes set record battery capacity

By Damir Beciri
17 January 2013

battery-sulfer-cathode-yolk-1Researchers from the SLAC National Accelerator Laboratory, which is operated by the Stanford University, managed to set a world record for energy storage in the sulfur cathode of a rechargeable lithium-ion battery. They came up with a novel “yolk-shell” design which enables these batteries to store five times more energy compared to current commercially available… »

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New self-healing coating for aluminum developed to replace chromates

By Damir Beciri
28 October 2012

molybdate-based-aluminum-coatingAttempts to replace chromate coatings with non-toxic coatings have been underway since the 1980s. The awareness on effects of chromates was brought to the forefront in 1993 by the real-life incident involving Erin Brokovich and depicted in the movie released in 2000 of the same name. A research team at the University of Nevada, Reno… »

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Understanding self cleaning abilities of gecko’s foot hair

By Damir Beciri
21 June 2012

geckoWe already published several articles about gecko biomimicry, whose feet and their adhesive properties inspired researchers to develop similar surfaces, as well as a mass production technique to create the surface. Although it addresses the same subject, this article describes recently published results from University of Akron (UA) where researchers examined self-cleaning and reusability of… »

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More environmentally friendly and less costly cement developed

By Damir Beciri
22 February 2012

msu-glass-cementTwo separate research groups have applied two different approaches to improve cement in order to make it more durable and greener. Researchers from the Michigan State University have found that mixing ground waste glass into the cement makes resulting concrete stronger, more durable and more resistant to water, while Drexel University researchers found a way… »

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Polymer extracted from seaweed may improve battery performance

By Damir Beciri
8 September 2011

brown-algae-kelpCollaboration between researchers at the Clemson University and the Georgia Institute of Technology resulted with a promising new binder material for lithium-ion battery electrodes. Known as alginate, the material is extracted from common, fast-growing brown algae, and it could boost energy storage, while eliminating the use of toxic compounds now used to manufacture the components…. »

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First optoelectronically active 3D photonic crystal developed

By Damir Beciri
25 July 2011

3d-photonic-crystal-ledPrevious attempts at making 3D photonic crystals have resulted in devices that are only optically active (they can’t turn electricity to light or vice versa). A group of researchers, led by researchers from the University of Illinois, have managed to develop the first optoelectronically active 3D photonic crystal. The development could enable new advancements for… »