Osaka University

Osaka University

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Cellulose nanofiber materials, ISIR, Osaka University
Cellulose nanofibers with 4-20 nm width are bundles of cellulose microfibrils, which are frameworks of cell walls in all the plants. We have developed nano-fibrillation processes of bio-resources (wood, plants fibers, crabs, shrimps e.t.c.) and some advanced nanofiber materials with high optical transparency. Moreover, we have also improved their properties or processes to realize their applications in the electronic devices.
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2023
21 Apr 2023

AI for Sustainability: How Materials Informatics is Driving Change

Materials informatics is the application of data-driven methods, including machine learning techniques, to the field of materials science. This important part of the digital transformation toolbox for the materials industry has wide-ranging benefits, but the ability to enhance the sustainability of materials and their manufacturing processes could be the most impactful of these.
2022
24 Oct 2022

Measuring Brain Activity On The Go

Brain activity has traditionally been assessed using large and often expensive technology that has limited its use to specific clinical settings. Small wearable devices that can assess brain activity are hoped to improve the diagnosis and monitoring of brain diseases like dementia or depression.
19 Oct 2022

3D Printed, Edible QR Codes

Researchers from Japan have developed a way to include an unobtrusive edible tag embedded inside food—in their original experiments, cookies—that can be read without having to first destroy the food. Another major advantage of their method, known as "interiqr," is that the tag doesn't change the outer appearance or taste of the food at all.
10 Oct 2022

Chemical Recycling and Dissolution of Plastics 2023-2033

IDTechEx Report:
28 Sep 2022

Improved Heat Dissipation in Thin Film Devices

The last few decades have witnessed a tremendous advance in electronics technology, with the development of devices that are thinner, lightweight, flexible, and robust. However, as the devices get thinner so does the space for accommodating the internal working components. This has created an issue of improper heat dissipation in thin-film devices, since conventional heat sink materials are bulky and cannot be integrated into them.
15 Jul 2022

3D Printing Nickel Single Crystals Using Laser Additive Manufacturing

Researchers have succeeded in fabricating a nickel single crystal with only a very few crystalline defects by irradiating nickel powder with a large-radius, flat-top laser beam (i.e., a laser beam whose intensity is uniform across a cross-section of the beam). This technique may be used to fabricate a wide variety of single-crystalline materials, including heat-resistant materials for jet engines and gas turbines.
8 Jul 2022

Seeing Photovoltaic Devices in a New Light

Photovoltaic which convert light energy into electronic power are important as renewable energy sources or as light/image sensors. Recent progress in thin film photovoltaic devices has attracted much attention owing to their low-cost process, flexibility, and light weight. However, although various photovoltaic devices have been reported so far, reversible and fast wavelength-dependent responses have not been previously observed.
27 Apr 2022

Electronics Grow on Trees Thanks to Nanocellulose Paper Semiconductors

Semiconducting nanomaterials with 3D network structures have high surface areas and lots of pores that make them excellent for applications involving adsorbing, separating, and sensing. However, simultaneously controlling the electrical properties and creating useful micro- and macro-scale structures, while achieving excellent functionality and end-use versatility, remains challenging.
2021
22 Sep 2021

Tuning Flexible Circuits with Light

Researchers use ultraviolet light to tune circuit performance with a photoreactive polymer based on controlled changes in the chemical structure, which may lead to the development of wearable electronics and medical sensors.
26 Aug 2021

First 3D-Bioprinted Structured Wagyu Beef-Like Meat Unveiled

Scientists used stem cells isolated from Wagyu cows to 3D-print a meat alternative containing muscle, fat, and blood vessels arranged to closely resemble conventional steaks. This work may help usher in a more sustainable future with widely available cultured meat.
6 May 2021

Robotic Flexing: Biologically Inspired Artificial Muscles

At the crossroads between robotics and nanotechnology, a goal that is highly sought after is finding ways to leverage the action of tiny molecular motors to perform more sizeable tasks in a controllable manner.
4 Jan 2021

Toward Imperceptible Electronics That You Cannot See or Feel

Transparent electronics--such as head-up displays that allow pilots to read flight data while keeping their eyes ahead of them--improve safety and allow users to access data while in transit. For healthcare applications, the electronics need to not only be cheap and straightforward to fabricate, but also sufficiently flexible to conform to skin. Silver nanowire networks meet these criteria. However, current methods of development create random nanowire alignment that's insufficient for advanced applications.
2020
30 Mar 2020

Made to Degrade (Eventually)

A group of researchers has combined the ubiquitous biomasses starch, the main component of the carbohydrates found in corn, tubers, and roots such as potatoes, and cellulose, the main component of plants and commonly known as cotton fiber, to develop a marine biodegradable plastic.
2019
12 Aug 2019

Electric Vehicle Research at Advanced Materials Osaka July 2019

Here we give the abstracts relevant to electric vehicles from BIT Advanced Materials Conference Osaka Japan July 2019. The organisers failed to provide slides but we have photographs of some of these if you are interested. The selected abstracts are divided into energy storage, wide bandgap semiconductors, energy harvesting and other.
12 Jul 2019

Direct diode lasers: how technology evolution is opening new markets

The evolution of diode laser price and performance is rapidly opening new markets. In this article, the technology consulting firm IDTechEx demonstrate how advances in semiconductor laser technology enable novel applications in laser material processing and industrial manufacturing.
12 Jul 2019

Robot-ants that can jump, communicate and work together

A team of researchers has developed tiny 10-gram robots that are inspired by ants: they can communicate with each other, assign roles among themselves and complete complex tasks together. These reconfigurable robots are simple in structure, yet they can jump and crawl to explore uneven surfaces.
8 Jul 2019

Applying pressure generates more electricity from waste heat

Researchers have been able to enhance the power factor of a promising thermoelectric material by more than 100% by varying the pressure, paving the way for new materials with improved thermoelectric properties.
24 May 2019

Automatic neurological disease diagnosis using deep learning

A team of researchers developed MNet, an automatic diagnosis system for neurological diseases using magnetoencephalography, demonstrating the possibility of making automatic neurological disease diagnoses.
2018
19 Dec 2018

Cancer cells distinguished neural network

In cancer patients, there can be tremendous variation in the types of cancer cells from one patient to another, even within the same disease. Identification of the particular cell types present can be very useful when choosing the treatment that would be most effective, but the methods of doing this are time-consuming and often hampered by human error and the limits of human sight.
25 Oct 2018

Efficiently turning light into electricity

Perovskites form a group of crystals that have many promising properties for applications in nano-technology. However, one useful property that so far was unobserved in perovskites is so-called carrier multiplication - an effect that makes materials much more efficient in converting light into electricity.