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:2/7/2017)... 7, 2017   MedNet Solutions , an innovative ... of clinical research, is pleased to announce that the ... innovative, highly flexible and award winning eClinical solution, is ... iMedNet is a proven Software-as-a-Service (SaaS) clinical research ... (EDC), but also delivers an entire suite of eClinical ...
(Date:2/7/2017)... February 7, 2017 Ipsidy Inc. ... Corporation [OTC: IDGS], ("Ipsidy" or the "Company") a provider ... processing services, is pleased to announce the following changes ... Effective January 31, 2017, Philip D. Beck ... CEO and President.  An experienced payment industry professional and ...
(Date:2/3/2017)... -- Texas Biomedical Research Institute announced that its Board of Trustees ... the Institute,s new President and CEO. Dr. Schlesinger will take ... is currently the Chair of the Department of Microbial Infection ... Biology at Ohio State University. "We are delighted ... of Texas Biomed," said Dr. James O. Rubin , ...
Breaking Biology News(10 mins):
(Date:2/23/2017)... , Feb. 23, 2017  Seattle,s upscale Capitol Hill ... a strange place for a head lice treatment salon to ... between a Tuscan restaurant and a French bistro on E ... perfect. "We aren,t just any old lice clinic, we pride ... feel comfortable, and release some of the stigma associated with ...
(Date:2/23/2017)... ... February 23, 2017 , ... ... published evaluation of multiple immunoassay-based threat detection technologies by researchers from the ... CANARY® biosensor threat detection technology was found to have the best level ...
(Date:2/23/2017)... , ... February 23, 2017 , ... The Greater ... a new partnership with Compass Research . GGI's mission is to advance global ... to a child in need in honor of each clinical trial volunteer. The vision ...
(Date:2/23/2017)... SAN DIEGO and SAN FRANCISCO ... , a privately-held regenerative medicine company, and Beyond Type ... living with type 1 diabetes, today announced a grant ... develop a functional cure for type 1 and other ... decade, ViaCyte has been developing innovative stem cell-derived cell ...
Breaking Biology Technology: