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Tokyo Institute of Technology

Tokyo Institute of Technology Articles

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Analysis
16th February 2017
Unveiling thermoacoustic instability

  Intensive pressure oscillations by thermoacoustic instabilities are critical for the operation of practical gas turbine combustors. However, it is difficult to investigate interactions between turbulent flames and acoustic modes of combustors due to the existence of complex dynamics and their three-dimensional nature.

Test & Measurement
3rd February 2017
Method senses electric field in semiconductor

Researchers develop a method for sensing the electric field generated in semiconductor devices during operation. The technique is demonstrated for a diamond device, with nitrogen–vacancy centers acting as local electric-field probes, subject to bias voltages up to 150 V. Semiconductors lie at the heart of many of the electronic devices that govern our daily lives. The proper functioning of semiconductor devices relies on their internal...

Optoelectronics
11th January 2017
Real time imaging of medaka aboard space station

Akira Kudo at Tokyo Tech and colleagues report in Scientific Reports that live-imaging and transcriptome analysis of medaka fish transgenic lines lead to immediate alteration of cells responsible for bone structure formation. These findings are important for assessing the effects microgravity on long term human space missions. Space travel in a reduced gravity environment can have lasting effects on the body.

Optoelectronics
16th December 2016
Optical fibre sensor enables detection of structural damage

A research group including members from Tokyo Institute of Technology and Japan Society for the Promotion of Science have developed a real-time fibre-optic distributed sensing system for strain and temperature. The system requires light injection from only one end of the fiber and can achieve a sampling rate of 100 kHz, an improvement of over 5,000 times the conventional rate.

Component Management
7th December 2016
3D solutions aid silicon power transistors

Tokyo Tech researchers demonstrate operation energy-savings in a low price silicon power transistor structure by scaling down in all three dimensions. In electronics, lower power consumption leads to operation cost savings, environmental benefits and the convenience advantages from longer running devices. While progress in energy efficiencies has been reported with alternative materials such as SiC and GaN, energy-savings in the standard ine...

Analysis
6th December 2016
Latest aspect of atom mimicry for nanotechnology applications

Tokyo Tech researchers show dendrimers that mimic the electron valency of atoms can also mimic polymerisation yielding controlled one and two-dimensional arrays of nanocontainers. In nanotechnology control is key. Control over the arrangements and distances between nanoparticles can allow tailored interaction strengths so that properties can be harnessed in devices such as plasmonic sensors.

Power
6th December 2016
3D solutions provide energy savings in silicon power transistor

Tokyo Tech researchers demonstrate operation energy-savings in a low price silicon power transistor structure by scaling down in all three dimensions. In electronics, lower power consumption leads to operation cost savings, environmental benefits and the convenience advantages from longer running devices. While progress in energy efficiencies has been reported with alternative materials such as SiC and GaN, energy-savings in the standard ine...

Wearables
15th November 2016
Wearable THz scanning device for medical applications

Scientists at Tokyo Institute of Technology have developed a portable and wearable terahertz scanning device made using arrays of carbon nanotubes, for non-invasive inspection of three-dimensional objects without requiring bulky peripheral optical components. The device is expected to have wide ranging applications including the noninvasive inspections of medical and drug delivery equipment such as syringes, as well as in medicine for imagin...

Component Management
1st November 2016
Protein bridges for 'seamless' bioelectronics devices

Life has always played by its own set of molecular rules. From the biochemistry behind the first cells, evolution has constructed wonders like hard bone, rough bark and plant enzymes that harvest light to make food. But our tools for manipulating life — to treat disease, repair damaged tissue and replace lost limbs — come from the nonliving realm: metals, plastics and the like.

Medical
21st October 2016
Imaging probe for fast and sensitive detection of cancer

The ultimate goal of cancer diagnostics is to develop sensitive imaging techniques for reliable detection of tumor malignancy in the body. Scientists at Tokyo Institute of Technology have come close to achieving this goal by developing an injectable imaging probe that can specifically detect solid tumors based on the activity of hypoxia-inducible factor (HIF) regulated by the ubiquitin-proteasome system.

Component Management
12th October 2016
Ultra-thin ferroelectric material for next-gen electronics

Scientists at Tokyo Tech have demonstrated the potential of a new, thin-film ferroelectric material that could improve the performance of next-gen sensors and semi-conductors. 'Ferroelectric' materials can switch between different states of electrical polarisation in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory.

Component Management
26th September 2016
Light-emitting materials to advance nano-medicine

Scientists at Tokyo Tech have developed an approach to control the photoluminescence and solid-state emission of bismuth complexes by complexation with phenylazomethine dendrimers. This research not only sheds light on the structure of a rare, luminescent bismuth complex, but will also be used to advance the potential applications of luminous dendrimers, especially in light harvesting, sensing, electronics, photonics, and nano-medicine.

Medical
19th August 2016
Boron carrier for targeted tumour therapy

Scientists at Tokyo Institute of Technology have developed a boron carrier for use in targeted radiation treatment for cancerous tumours. The carrier is based on a common blood plasma protein, meaning it can be tailored to individual patients thus lessening the chances of blood contamination. Targeted radiation-based therapies for treating cancerous tumours such as 'boron neutron capture therapy' (BNCT), rely on the efficient and effective delive...

Test & Measurement
1st July 2016
Neutron diffraction studies find origins of lithium battery deterioration

Researchers use diffraction data from pulsed high-intensity neutrons to understand the reactions that deteriorate lithium batteries during operation. The findings are published in Scientific Reports, 30th June 2016. Despite the commercialisation of rechargeable lithium batteries in 1991, improvements to the reliability, safety and long-term stability are still needed for their use in a wider range of large-scale applications.

Medical
21st June 2016
Bioluminescence is able to detect deep cancers

A team of Tokyo Tech and the University of Electro-Communications (UEC) researchers developed a luciferin analog that can produce bioluminescence with near-infrared wavelength and is applicable in animal experiments. This allows markedly higher target-detection sensitivity, even at very low concentrations. The UEC researchers had previously synthesised a novel luciferin analog, AkaLumine, by altering the chemical structure of D-luciferin.

Power
21st June 2016
Experiments reveal promising nitride semiconductors

Researchers use simulations to identify previously undiscovered semiconductors with promising attributes for optical and electronic applications. A nitride among those proposed has been successfully fabricated using high-pressure synthesis and is found to emit red light. The discovery of new semiconducting materials is a scientifically and technologically important issue; state researchers in Japan in a recent report.

Optoelectronics
15th June 2016
Simultaneously acquire colour & near-infrared images

Masatoshi Okutomi and colleagues at Tokyo Institute of Technology and Olympus R&D have developed a new imaging system for simultaneous acquisition of colour (RGB) and Near-InfraRed (NIR) images using only a single image sensor.

Component Management
12th May 2016
Fine tuning phosphorous heterocycle materials for organic electronics

Scientists at Tokyo Institute of Technology have produced airstable 1-aryl 1,3-diphosphacyclobutane-2,4-diyl materials by direct arylation with electron rich aromatic substituents. This method enables the fine tuning of the electronic properties of such phosphorous heterocycles compounds for applications including fabrication of organic electronics and hydrogen fluoride sensors.

Power
4th April 2016
Solid electrolytes open doors to solid-state batteries

Japanese scientists have synthesised two crystal materials that show great promise as solid electrolytes. All-solid-state batteries built using the solid electrolytes exhibit excellent properties, including high power and high energy densities, and could be used in long-distance electric vehicles.

Power
18th March 2016
Hydride-ion conduction has potential for next-gen batteries

Scientists at Tokyo Institute of Technology in collaboration with colleagues in Japan demonstrate the first electrochemical reaction based on hydride ions in an oxide-based solid-state cell for potential next-gen batteries. Ionic transport has been studied extensively over the years for energy devices such as fuel cells and batteries using Li+, H+, Ag+, Cu+, F–, and O2–. Yet as Genki Kobayashi and Ryoji Kanno point out in a recent rep...

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