Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > R&D Profile: New Routes to Gels and Glasses, or How to Apply Analogies between Soft Matter Physics and Food Systems: A. Stradner, University of Fribou

Solid-like materials can be obtained via a variety of different arrest mechanisms. In the case of medium strength attractive particles, gels can form via an arrested spinodal decomposition process.
Solid-like materials can be obtained via a variety of different arrest mechanisms. In the case of medium strength attractive particles, gels can form via an arrested spinodal decomposition process.

Abstract:
We believe that nanotechnology can make important contributions to food sciences and technology in several areas.

R&D Profile Courtesy of Anna Stradner, Adolphe Merkle Institute, University of Fribourg, Switzerland

Dr. Stradner is a featured speaker at next month's NSTI Nanotech conference.

R&D Profile: New Routes to Gels and Glasses, or How to Apply Analogies between Soft Matter Physics and Food Systems: A. Stradner, University of Fribou

Boston, MA | Posted on May 22nd, 2008

Gels and glasses represent classes of non-equilibrium solids that play an important role in various food and materials science applications (1). In addition, they have attracted the attention of experimentalists and theoreticians in modern soft condensed matter physics. This has already resulted in a much better understanding of phenomena centered around liquid-solid transitions encountered in colloidal model suspensions (2, 3). However, experimental investigations in systems with industrial relevance are often hampered by problems such as high turbidity, complex time dependence, and the non-ergodicity of the resulting solid-like samples. Here we show that the application of novel developments in instrumentation for the investigation of dense and strongly attracting colloidal suspensions yields improved insight into the behavior and properties of food related mixtures (4, 5). Moreover, we develop new concepts for the understanding of non-equilibrium solid states in food colloid - biopolymer mixtures in the region of the state diagram, where liquid-liquid phase separation competes with dynamical arrest. This interplay and the possibility to modify it by playing with interparticle interaction strength and range lead to interesting phenomena and - once fully understood - will provide a tool kit to produce food gels with tailored structural and mechanical properties.

This study has to be seen in a larger context. We believe that nanotechnology can make important contributions to food sciences and technology mainly in three areas, which represent the focus of our nanotechnology-based food research: (1) Utilizing concepts from colloid physics to create self-assembled food systems with novel properties: The issue of non-equilibrium solid-like properties is of outstanding importance for food processing as well as the final food products. Only improved understanding of the mechanisms involved will allow controlling and tuning the structural, optical and mechanical properties. (2) The application of novel methods and instrumentation originally developed in nanomaterials science and soft matter physics: Experimental studies of food systems often require us to cover an extremely large range of length and time scales. We thus put a major effort into the development of new experimental tools that allow us to investigate equilibrium and non-equilibrium properties of these systems. (3) The development of nanocomposite-based packaging materials: Here we synthesize and study functionalized synthetic colloidal particles in order to create advanced composite materials for food packaging with optimized safety and shelf life properties.

1. R. Mezzenga, P. Schurtenberger, A. Burbidge, and M. Michel, Nature Materials, 2005, 4, 729.
2. V. Trappe and P. Sandkühler, Curr. Opin. Colloid Int. Sci., 2004, 8, 494-500.
3. F. Cardinaux, T. Gibaud, A. Stradner, P. Schurtenberger, PRL, 2007, 99, 118301.
4. S.K. Bhat, R. Tuinier, P. Schurtenberger, J. Phys.: Condens. Matter, 2006, 18, L339-L346
5. S.K. Bhat, M. Michel, A. Stradner, P. Schurtenberger, to be submitted to Soft Matter

####

About NSTI
The Nano Science and Technology Institute (NSTI) is chartered with the promotion and integration of nano and other advanced technologies through education, technology and business development. NSTI accomplishes this mission through its offerings of continuing education programs, scientific and business publishing and community outreach. NSTI produces the annual Nanotech conference and trade show, the most comprehensive international nanotechnology convention in the world. NSTI also produces the semi-annual Nanotech Venture, Nanotech Industrial Impact Workshop, Nano Impact Summit and the Nanotech Course Series in the US and Europe. NSTI was founded in 1997 as a result of the merger between various scientific societies, and is headquartered in Cambridge, Massachusetts with additional offices in California and Switzerland.

For more information, please click here

Contacts:
Sarah Wenning
696 San Ramon Valley Blvd., Ste. 423
Danville, CA 94526
Ph: (925) 901-4959
Fax: (925) 886-8461

Copyright © NSTI

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

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Superconductivity: Footballs with no resistance - Indications of light-induced lossless electricity transmission in fullerenes contribute to the search for superconducting materials for practical applications February 9th, 2016

SUNY Poly and GLOBALFOUNDRIES Announce New $500M R&D Program in Albany To Accelerate Next Generation Chip Technology: Arrival of Second Cutting Edge EUV Lithography Tool Launches New Patterning Center That Will Generate Over 100 New High Tech Jobs at SUNY Poly February 9th, 2016

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

Nanoparticle therapy that uses LDL and fish oil kills liver cancer cells February 9th, 2016

Physics

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

A fast solidification process makes material crackle February 8th, 2016

Announcements

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

SUNY Poly and GLOBALFOUNDRIES Announce New $500M R&D Program in Albany To Accelerate Next Generation Chip Technology: Arrival of Second Cutting Edge EUV Lithography Tool Launches New Patterning Center That Will Generate Over 100 New High Tech Jobs at SUNY Poly February 9th, 2016

Making sense of metallic glass February 9th, 2016

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

Food/Agriculture/Supplements

Scientists have put a high precision blood assay into a simple test strip: Researchers have developed a new biosensor test system based on magnetic nanoparticles February 3rd, 2016

Herbal Extracts Applied to Synthesize Titanium Dioxide Nanoparticles January 28th, 2016

Antibacterial Nanocomposites Designed in Iran for Foodstuff Packaging January 20th, 2016

HSI 2016 | Hyperspectral Imaging and Applications conference is announced January 13th, 2016

Events/Classes

Nanotech Security to Present at the Optical Document Security Conference February 11, 2016 February 4th, 2016

New research uses nanotechnology to prevent preterm birth: March of Dimes honors abstract on prematurity at SMFM Annual Meeting February 2nd, 2016

NBC LEARN DEBUTS SIX-PART VIDEO SERIES, “NANOTECHNOLOGY: SUPER SMALL SCIENCE” Produced by NBC Learn in partnership with the National Science Foundation, and narrated by NBC News/MSNBC’s Kate Snow, series highlights leading research in nanotechnology January 25th, 2016

Leti to Host Workshop on New Photonics Applications During SPIE Photonics West: Researchers also Will Present Four Invited Papers At Feb. 13-18 Conference, 14 Papers, Overall January 25th, 2016

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




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic