Researchers at Osaka University develop liquid-phase 3D-patterning to create nanocellulose films aligned along multiple axes within the same sheet. This work may lead to ever more sophisticated optical and thermal devices or even “paper electronics.”
Researchers at The Institute of Scientific and Industrial Research at Osaka University introduced a new liquid-phase fabrication method for producing nanocellulose films with multiple axes of alignment. Using 3D-printing methods for increased control, this work may lead to cheaper and more environmentally friendly optical and thermal devices.
Ever since appearing on the original Star Trek TV show in the 1960s, the game of “three-dimensional chess” has been used as a metaphor for sophisticated thinking. Now, researchers at Osaka University can say that they have added their own version, with potential applications in advanced optics and inexpensive smartphone displays.
Many existing optical devices, including liquid-crystal displays (LCDs) found in older flat-screen televisions, rely on long needle-shaped molecules aligned in the same direction. However, getting fibers to line up in multiple directions on the same device is much more difficult. Having a method that can reliably and cheaply produce optical fibers would accelerate the manufacture of low-cost displays or even “paper electronics” — computers that could be printed from biodegradable materials on demand.
Cellulose, the primary component of cotton and wood, is an abundant renewable resource made of long molecules. Nanocelluloses are nanofibers made of uniaxially aligned cellulose molecular chains that have different optical and heat conduction properties along one direction compared to the another.
In newly published research from the Institute of Scientific and Industrial Research at Osaka University, nanocellulose was harvested from sea pineapples, a kind of sea squirt. They then used liquid-phase 3D-pattering, which combined the wet spinning of nanofibers with the precision of 3D-printing. A custom-made triaxial robot dispensed a nanocellulose aqueous suspension into an acetone coagulation bath.
“We developed this liquid-phase three-dimensional patterning technique to allow for nanocellulose alignment along any preferred axis,” says first author Kojiro Uetani. The direction of the patterns could be programmed so that it formed an alternating checkerboard pattern of vertically- and horizontally-aligned fibers.
To demonstrate the method, a film was sandwiched between two orthogonal polarizing films. Under the proper viewing conditions, a birefringent checkerboard pattern appeared. They also measured the thermal transfer and optical retardation properties.
“Our findings could aid in the development of next-generation optical materials and paper electronics,” says senior author Masaya Nogi. “This could be the start of bottom-up techniques for building sophisticated and energy-efficient optical and thermal materials.”
Reference: “Checkered films of multiaxis oriented nanocelluloses by liquid-phase three-dimensional patterning” by Kojiro Uetani, Hirotaka Koga and Masaya Nogi, 18 May 2020, Nanomaterials.
This is compatible with both android and iOs. This app can be linked with your Insta and you have to sign in with the https://gramvio.com/instagram-story-viewer/. Once you installed it, follow the process and you can upload the videos.
For viewing an Instagram profile pic in enlarge & full size you must need to know the Instagram profile username. Enter that username in the search bar then we get you that profile details scroll down to view image & click on download button to download that image.
This is a really too good post. This article gives truly quality and helpful information. I’m definitely going to look into it. Really very useful topic info is provided here. Thank you so much buddy and Keep up the good work.
They are the best options to get the latest and also getting the new generation features of essay writing services their website is,https://essaywritingservices.pk/, they are very authentic and creative in giving their valuable services in all the way to Pakistan.
In this way, most students do not prepare themselves to solve the exams if you provide them with online guess papers. I think it is the wrong method, but also we have to train them for completing their papers with the help of https://www.affordable-dissertation.co.uk/dissertation-writing-services-uk/
Sure I simply Like that,
This is an in reality too right submission. this article gives honestly high-quality and useful statistics. I’m without a doubt going to check out it. truly very beneficial topic information is supplied right here. thanks a lot, pal and preserve up the best work. “https://collegelifenetwork.com/”
We are an online educational platform that provides teachers and students with high-quality homework help from experienced tutors who can assist with any subject area or grade level. We want to help make sure that students get the assistance they need in order to succeed academically.