Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > 'Molecular Rollar Coaster' distinguishes between molecules

The 'molecular roller coaster' of two molecules (illustration: Florian Sterl)
The 'molecular roller coaster' of two molecules (illustration: Florian Sterl)

Abstract:
Research that made it to the cover of the authoritative scientific journal Analytical Chemistry this week has shown that the detection method developed by researchers at the University of Twente's research institutes MESA+ and MIRA is even more sensitive than demonstrated earlier. Not only can it detect molecules accurately, it also shows the difference between them very clearly. The research was co-financed by Nanoned (a national nanotechnology R&D initiative that combines the Dutch strengths in nanoscience and technology in a national network), the Foundation for Fundamental Research on Matter (FOM) and the Netherlands Organization for Scientific Research (NWO).

'Molecular Rollar Coaster' distinguishes between molecules

The Netherlands | Posted on September 15th, 2010

The molecules in a solution can be measured with a technology known as Coherent Anti-Stokes Raman Spectroscopy (CARS). Molecules that are very similar are, however, difficult to distinguish from one another. University of Twente (UT) researchers had, at an earlier stage, already introduced an improved form of CARS, which is much more sensitive and with which molecules can be tracked down in a very much lower concentration. In the study now published, they show that their method is not only much more sensitive, but that it also enables them to detect up to ten different sorts of molecules simultaneously. In the past, several successive measurements had to be carried out to achieve this, so work of this kind can now be carried out considerably faster. This technology also makes it possible for researchers to 'film' how medicines are released from a tablet or how a living cell burns fats. The researchers envisage applications in the pharmaceutical industry and cell biology research for this technology.

Molecular roller coaster

If you shine laser light on molecules, some of these molecules will absorb photons (light particles) and emit new photons. The emitted photons then have a higher energy level than the original photons. With the aid of Anti-Stokes Raman Spectroscopy, these photons can be caught and used to determine which molecules are present in the solution. The method looks at the amplitude of the vibrations of the light. The UT researchers' new method looks not only at the amplitude of the vibration, but also at the phase. Plotting the amplitude and the phase of the vibration of the light in a graph creates a complicated spiral dubbed the 'molecular roller coaster' by the researchers. As a result of this roller coaster, similar substances can easily be distinguished from one another.

This research was carried out by the research groups Optical Sciences (MESA+ Institute for Nanotechnology) and Medical Cell BioPhysics (MIRA) and was co-financed by Nanoned, FOM and NWO. For more information or a digital version of the article 'Visualizing Resonances in the Complex Plane with Vibrational Phase Contrast Coherent Anti-Stokes Raman Scattering' by Martin Jurna, Erik Garbacik, Jeroen Korterik, Jennifer Herek, Cees Otto and Herman Offerhaus, please contact the research information officer Joost Bruysters on +31 (0)53 489 2773 / +31 (0)6 1048 8228.

####

For more information, please click here

Contacts:
Joost Bruysters
+31 (0)53 489 2773
+31 (0)6 1048 8228

Copyright © University of Twente

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

Pixelligent Launches New PixClear® Light Extraction Materials for OLED Lighting August 4th, 2015

The annual meeting on High Power Diode Lasers & Systems will be held as part of the Enlighten Conference, October 14th & 15th August 4th, 2015

Atomic view of microtubules: Berkeley Lab researchers achieve record 3.5 angstroms resolution and visualize action of a major microtubule-regulating protein August 4th, 2015

World's quietest gas lets physicists hear faint quantum effects August 4th, 2015

Possible Futures

Global Carbon Nanotubes Industry 2015: Acute Market Reports August 4th, 2015

Nanozirconia Market 2015 - Global Industry Survey, Analysis, Size, Share, Outlook and Forecast to 2020 July 31st, 2015

Self-Healing Nano Anti-rust Coatings Market 2015 - Global Industry Survey, Analysis, Size, Share, Outlook and Forecast to 2020 July 31st, 2015

Nano Spray Instrument Market 2015 - Global Industry Survey, Analysis, Size, Share, Outlook and Forecast to 2020 July 31st, 2015

Academic/Education

Pakistani Students Who Survived Terror Attack to Attend Weeklong “NanoDiscovery Institute” at SUNY Poly CNSE in Albany July 29th, 2015

Deben reports on the use of their CT500 in the X-ray microtomography laboratory at La Trobe University, Melbourne, Australia July 22nd, 2015

JPK reports on the use of SPM in the Messersmith Group at UC Berkeley looking at biologically inspired polymer adhesives. July 21st, 2015

Renishaw adds Raman analysis to Scanning Electron Microscopy at the University of Sydney, Australia July 9th, 2015

Nanomedicine

Atomic view of microtubules: Berkeley Lab researchers achieve record 3.5 angstroms resolution and visualize action of a major microtubule-regulating protein August 4th, 2015

Artificial blood vessels become resistant to thrombosis August 4th, 2015

Nanoparticles used to breach mucus barrier in lungs: Proof-of-concept study conducted in mice a key step toward better treatments for lung diseases August 3rd, 2015

Promising Step Taken in Iran towards Treatment of Spinal Cord Injury August 3rd, 2015

Announcements

Artificial blood vessels become resistant to thrombosis August 4th, 2015

Engineering a better 'Do: Purdue researchers are learning how August 4th, 2015

Proving nanoparticles in sunscreen products August 4th, 2015

Global Carbon Nanotubes Industry 2015: Acute Market Reports August 4th, 2015

Tools

University of Puerto Rico announces August 11th as the launch date for their NASA mission to look for life in space – XEI reports August 3rd, 2015

Thin films offer promise for ferroelectric devices: Researchers at Tokyo Institute of Technology demystify the ferroelectric properties observed in hafnium-oxide-based thin films, revealing a potentially useful device material August 3rd, 2015

Heating and cooling with light leads to ultrafast DNA diagnostics July 31st, 2015

Take a trip through the brain July 30th, 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