Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > Cellulose for manufacturing advanced materials: A review of the scientific literature made at the University of the Basque Country (UPV/EHU) highlights the potential of hybrid materials based on cellulose nanocrystals

Lecturer and researcher in the Department of Graphic Design and Engineering Projects at the Faculty of Engineering-Bilbao of the UPV/EHU.

CREDIT
UPV/EHU
Lecturer and researcher in the Department of Graphic Design and Engineering Projects at the Faculty of Engineering-Bilbao of the UPV/EHU. CREDIT UPV/EHU

Abstract:
Erlantz Lizundia-Fernandez, who lectures in the UPV/EHU's Department of Graphic Design and Engineering Projects, works with renewable polymers. "We are seeking to drive forward the circular economy so we use renewable materials to substitute the applications that currently come from petroleum, or, for example, so they can be used to substitute scarce elements such as lithium or cobalt. My research focusses on cellulose, and out of all the types of cellulose, I have worked mainly with nanocrystals," he said.

Cellulose for manufacturing advanced materials: A review of the scientific literature made at the University of the Basque Country (UPV/EHU) highlights the potential of hybrid materials based on cellulose nanocrystals

Leioa, Spain | Posted on June 26th, 2020

As an expert in the subject, Lizundia has reviewed together with another three researchers from Italy and Canada the main developments and advances that have emerged recently in the area of cellulose nanocrystals. "There is a huge number of research papers explaining the synthesis of materials of this type and which are geared towards what is known as proof of concept, in other words, to show that they can be used for a specific application. Cellulose nanocrystals have been widely used to mechanically strengthen polymers. Yet there are hardly any pieces of work that catalogue and explain the applications of hybrid materials produced using cellulose nanocrystals. This is what we have contributed: we have described the state of the art in this area of knowledge by conducting an in-depth review of the papers published in this respect," explained the researcher.

Cellulose crystals can be extracted from any object that contains cellulose, be it a tree or a newspaper, and these crystals are used as the base, like a matrix, to produce multifunctional materials by hybridizing them with other components, such as metal oxide nanoparticles, carbon nanoparticles or others of natural origin. The materials created have numerous interesting properties: they are renewable and biodegradable, they can be obtained simply and cost-effectively, they offer great flexibility, are of low density and high porosity, and have excellent mechanical, thermal and physico-chemical properties, among other things. In the analysis they explored three aspects of hybrid materials in depth: the manufacturing process by which they are formed, the types of hybrid materials produced, and the applications for which they are used.

A whole host of applications in engineering and medicine

Lizundia and the other researchers reviewed the manufacturing methods used to form hybrid materials with a range of morphologies and shapes. "The most widely used method is the simplest of all," they said in the article: cellulose nanocrystals and the other elements destined to form the hybrid material are blended in a solution; this solution is decanted onto a surface and the water is allowed to evaporate." Through this technique the cellulose nanocrystals produce helix-shaped structures, chiral nematic structures. "The special feature of these structures is that they provide the material with structural colour. The nanocrystals are organised into layers and, depending on the distance between the layers, the hybrid material will reflect light in one wavelength or another, which is the same as saying that it will be in one colour or another," added Lizundia.

Apart from the above-mentioned manufacturing method, the study also took filtering, 3D printing, layer-by-layer assembly and the sol-gel process into account. In all the cases the degree of development of the method is described and the features of the materials produced by it are quoted. However, an entire chapter is devoted afterwards to the features of the nanohybrids formed in the various studies analysed; this is followed by a classification in terms of the elements added to the nanocrystals: metals, metal oxides, carbon nanofibres and nanoparticles, graphene layers, luminescent nanoparticles, etc. Finally, the applications proposed for hybrid materials are examined, focussing mainly on the fields of engineering and medicine. Sensors, catalytic converters, wastewater treatment materials and energy applications developed by means of cellulose nanocrystals stand out among engineering applications. And among those geared towards medical applications they quote contributions made by materials to areas, such as tissue engineering, drug delivery, antibacterial solutions or wound dressings.

In each of the parts mentioned they review what has been achieved in the different pieces of research, but as experts in the subject they also provide their own assessment about the potential of the materials and what remains to be developed. Lizundia reached the following conclusion: "This work has served to bring together all the research spread across different locations, and we are offering a complete picture of the level of development of hybrid materials. That way we hope that interest in them will increase and that research in this area will be encouraged to fill the gaps we have found, such as a nanotoxicity study in medical applications or the establishing of the environmental impact of these materials."

###

Additional information

Erlantz Lizundia-Fernandez is a lecturer and researcher in the Department of Graphic Design and Engineering Projects at the Faculty of Engineering-Bilbao of the UPV/EHU, where he lectures on graphic design and ecodesign/circular economy. His research work is geared towards renewable polymers, and this study was conducted together with other researchers, one each from the Italian Universities of Perugia and Tuscia and one from the University of British Columbia in Canada.

####

For more information, please click here

Contacts:
Matxalen Sotillo

34-688-673-770

@upvehu

Copyright © University of the Basque Country

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

The lightest shielding material in the world: Protection against electromagnetic interference July 3rd, 2020

Spintronics: Faster data processing through ultrashort electric pulses July 3rd, 2020

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Possible Futures

Spintronics: Faster data processing through ultrashort electric pulses July 3rd, 2020

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Nanomedicine

Charcoal a weapon to fight superoxide-induced disease, injury: Nanomaterials soak up radicals, could aid treatment of COVID-19 July 2nd, 2020

Wearable patch may provide new treatment option for skin cancer June 18th, 2020

Tiny pump builds polyrotaxanes with precision: Artificial molecular pump gives precise control for materials design June 12th, 2020

UTEP researchers help bring biofriendly materials to drug design for neuro disorders June 5th, 2020

Discoveries

The lightest shielding material in the world: Protection against electromagnetic interference July 3rd, 2020

Spintronics: Faster data processing through ultrashort electric pulses July 3rd, 2020

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Materials/Metamaterials

Macroscopic quantum interference in an ultra-pure metal June 26th, 2020

Process for 'two-faced' nanomaterials may aid energy, information tech June 26th, 2020

Researchers discover new boron-lanthanide nanostructure June 25th, 2020

Polymers can fine-tune attractions between suspended nanocubes: Interactions between hollow silica nanocubes suspended in a solution can be adjusted by varying the concentration of polymer molecules added to the mixture. June 19th, 2020

Announcements

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Flexible material shows potential for use in fabrics to heat, cool July 3rd, 2020

Carbon-loving materials designed to reduce industrial emissions July 3rd, 2020

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Flexible material shows potential for use in fabrics to heat, cool July 3rd, 2020

Nanobiotechnology

Charcoal a weapon to fight superoxide-induced disease, injury: Nanomaterials soak up radicals, could aid treatment of COVID-19 July 2nd, 2020

Wearable patch may provide new treatment option for skin cancer June 18th, 2020

Prodigiosin-based solution has selective activity against cancer cells: A new nanoformulation was described by Kazan University's Bionanotechnology Lab in Frontiers in Bioengineering and Biotechnology June 12th, 2020

Tiny pump builds polyrotaxanes with precision: Artificial molecular pump gives precise control for materials design June 12th, 2020

Research partnerships

Argonne researchers create active material out of microscopic spinning particles May 29th, 2020

Surrey reveals its implantable biosensor that operates without batteries May 22nd, 2020

Scientists use light to accelerate supercurrents, access forbidden light, quantum world May 21st, 2020

2D sandwich sees molecules with clarity: Rice University engineers adapt 2D ‘sandwich’ for surface-enhanced Raman spectroscopy May 15th, 2020

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project