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

Iranian Scientists Use Artemisia Annua Plant to Produce Breast Cancer Drugs August 29th, 2015

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Physics

Record-high pressure reveals secrets of matter: The most incompressible metal osmium at static pressures above 750 GPa August 25th, 2015

Southampton scientists find new way to detect ortho-para conversion in water August 25th, 2015

Biophysics: Formation of swarms in nanosystems August 18th, 2015

Attosecond physics: Attosecond electron catapult: Physicists from Ludwig-Maximilians-Universität (LMU) in Munich studied the interaction of light with tiny glass particles August 15th, 2015

Announcements

Iranian Scientists Use Artemisia Annua Plant to Produce Breast Cancer Drugs August 29th, 2015

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Food/Agriculture/Supplements

Nanotechnology that will impact the Security & Defense sectors to be discussed at NanoSD2015 conference August 25th, 2015

New Step towards Breast Cancer Treatment by Herbal Compounds August 23rd, 2015

Iranian Scientists Utilize Nanomembranes to Purify Wastewater of Olive Oil Plants August 20th, 2015

Harris & Harris Group Portfolio Company, AgBiome, Secures $34.5 Million Series B Financing Led By Bill and Melinda Gates Foundation August 20th, 2015

Events/Classes

Nanometrics to Participate in the Citi 2015 Global Technology Conference August 26th, 2015

Developing Component Scale Composites Using Nanocarbons August 26th, 2015

Nanotechnology that will impact the Security & Defense sectors to be discussed at NanoSD2015 conference August 25th, 2015

Abstract Submission Deadline for “2nd International Conference on Infectious Diseases & Nanomedicine (December 15-18, 2015, Kathmandu, NEPAL)” has been extended to Sept 15. August 20th, 2015

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