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Motorola Project Ara Modular Smartphone Platform

30.10.2013

Motorola Mobility's advanced technology division has unveiled a project codenamed Ara to create a universal platform for building modular smartphones.

The idea is to give users the freedom to choose components for their cell phones, replace them as needed, and change the functionality of the devices.

Work on the project has been going on for more than a year. The concept of modular smartphones involves the use of the so-called endoskeleton - the basis on which a wide variety of electronic modules will be placed. As planned by Motorola, users will be able to choose the processor, display and / or keyboard they need, the camera unit and battery, the required set of sensors, etc. As the device is used, its owners will be able to upgrade aging components without having to buy a new smartphone entirely.

The ultimate goal of Motorola Mobility is to create a free and open ecosystem where all interested developers and manufacturers can release functional hardware modules for smartphones of any class.

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Bacteria on nanofiber electrodes could purify wastewater 15.07.2017

Scientists from Cornell University have developed an innovative competitive material for wastewater treatment of contaminants. The new development is based on carbon nanoelectrodes with a conductive coating of 3,4-ethylenedioxythiophene.

The electrodes were electrospun from carbon nanofibers and coated with an electrically conductive polymer called PEDOT. After this coating is applied to the electrode, a layer of electrically active Geobacter sulfurreducens bacteria begins to grow on it, which produce an electric current and transfer electrons to the next electrode.

Bacteria feed on pollution from sewage and produce electricity, and the conductive nanofiber creates a favorable environment for them.

The new material will be able to significantly reduce the cost of producing electrodes and thereby make the water treatment process more accessible.

In the future, bacteria sitting on electrodes will be able to capture contaminants directly from the water flowing past them and recycle them. This technology will allow wastewater treatment plants to take up less space and increase productivity.

Scientists have created a carbon nanofiber using electrospin and carbonization. The nanofiber becomes visible to the eye after a few hours of electrospin.

Carbon nanofiber was used in the development because it has high porosity and is biologically compatible with bacteria. The addition of PEDOT improved the efficiency of the electrode.

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