Navigation Links
Fingerprint of dissolved glycine in the Terahertz range explained
Date:3/28/2014

Chemists at the Ruhr-Universitt Bochum (RUB) have, for the first time, completely analysed the fingerprint region of the Terahertz spectrum of a biologically relevant molecule in water, in this case, an amino acid. By combining spectroscopy and molecular-dynamics simulations, they rendered the motion of the most basic amino acid, glycine, visible in an aqueous solution. Their results have disproved the long-standing theory that frequencies in the Terahertz range provide no information regarding the amino acid's motion. The team led by Prof Dr Martina Havenith-Newen and Prof Dr Dominik Marx published their report in the "Journal of the American Chemical Society" (JACS).

Representing molecular motion by means of Terahertz spectroscopy

Researchers use Terahertz (THz) spectroscopy to send short radiation pulses into a sample of interest. The Terahertz range covers wavelengths of one to ten THz (0.3 millimetres to 30 micrometres) and extends between the infrared and the microwave range. The sample, in this case a mixture of water and glycine, partially absorbs the radiation, forming an absorption pattern, which is represented by chemists in the form of a spectrum. Certain areas of the spectrum, so-called bands, describe the motions of molecular bonds. Individual atoms in a molecule are not bonded rigidly; rather, they are permanently in motion. Complex computer simulations contribute significantly to analysing the spectra, as it is not always easy to decipher which individual bands of a spectrum correlate with which molecular motions.

THz analysis renders glycine motion in water visible

The RUB team has proved that THz analysis may be used to represent both the motion inside the glycine molecule and the motion of the glycine molecule together with its bound water molecules. The bands in the Terahertz spectrum, moreover, reflected the glycine's opening and closing motion. The spectrum also incorporated the motion of hydrogen bridges between the glycine and its bound water molecules. "The interaction between ab initio molecular-dynamics simulations and Terahertz spectroscopy provides us with an excellent instrument for tracking and understanding solvation processes on the molecular level," says Martina Havenith-Newen, Head of the Department of Physical Chemistry II.


'/>"/>

Contact: Dr. Martina Havenith-Newen
Martina.Havenith@rub.de
49-234-322-4249
Ruhr-University Bochum
Source:Eurekalert  

Related biology news :

1. Fingerprint Readers with DigitalPersona Silicon-based Sensors Certified for China Resident Identity Card
2. Biometrics Market Forecasts: Fingerprint Technologies, Facial and Iris Reading Algorithms Analyzed in New Research Reports
3. Fujitsu Launches Four Smartphones and Two Tablet PCs With FPC Embedded Fingerprint Technology for the Japanese Market
4. Grafted limb cells acquire molecular fingerprint of new location, UCI study shows
5. Glacial buzz-saws, gold in fools gold, fingerprints in sea water, and fluvial iron
6. Fingerprint Biometrics: Automated FIS, and Non-AFIS - Global Strategic Business Report - 2013
7. Silicon-based Fingerprint Sensors - Global Strategic Business Report
8. CSI-style DNA fingerprinting tracks down cause of cancer spread
9. Fingerprint Cards (FPC) Demonstrates Fingerprint Biometric Touch Sensor for Microsoft Windows 8.1
10. Papa Johns Restaurants in China Speed and Secure Workflow with DigitalPersona Fingerprint Biometrics
11. Metabolic fingerprinting: Using proteomics to identify proteins in gymnosperm pollination drops
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fingerprint of dissolved glycine in the Terahertz range explained
(Date:11/30/2016)... Nov. 30, 2016  higi SH llc (higi) ... initiative targeting national brands, industry thought-leaders and celebrity ... respective audiences for taking steps to live healthier, ... in 2012, higi has built the largest self-screening ... 38 million people who have conducted over 185 ...
(Date:11/29/2016)... , Nov. 29, 2016   Neurotechnology ... and object recognition technologies, today released FingerCell ... fingerprint recognition solutions that run on low-power, ... template using less than 128KB of memory, ... devices that have limited on-board resources, such ...
(Date:11/28/2016)... -- "The biometric system market projected ... biometric system market is in the growth stage and ... The biometric system market is expected to be valued ... of 16.79% between 2016 and 2022. Government initiative in ... smartphones, rising use of biometric technology in financial institutes ...
Breaking Biology News(10 mins):
(Date:12/9/2016)... (PRWEB) , ... December 09, 2016 , ... There’s a ... for 2016 by the Orange County Register, after winning the award last year as ... a sought-after employer. President and COO Daniel Vesely pointed to the tech company’s upbeat ...
(Date:12/9/2016)... 9, 2016  A platform of orthopedic device technologies ... one step closer to becoming viable options for ... Inc., a start-up company from Philadelphia, ... for these novel absorbable bone fixation and regenerative ... commercial use. The company has leased space within ...
(Date:12/8/2016)... -- The Board of Directors of the Pittsburgh Life ... only pure life sciences investment firm, today announced ... plan developed by the Nominating and Governance Committee over ... F. Jordan is selected to serve as President ... , who is elected to the position of Executive ...
(Date:12/8/2016)... Philadelphia, PA (PRWEB) , ... December 08, 2016 ... ... fan engagement platforms, the business of innovation is taking over sports. On Thursday, ... executive will explore how technology is disrupting the playing field at a Smart ...
Breaking Biology Technology: