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:3/28/2017)... PUNE, India , March 28, 2017 ... (Analog, IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), ... Maintenance), Vertical, and Region - Global Forecast to 2022", ... 30.37 Billion in 2016 and is projected to reach ... 15.4% between 2017 and 2022. The base year considered ...
(Date:3/24/2017)... MILAN , March 24, 2017 The Controller ... Deputy Controller Mr. Abdulla Algeen have received the prestigious international ... Continue Reading ... ... small picture) and Deputy Controller Abdulla Algeen (small picture on the right) ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based ... to 2022", published by MarketsandMarkets, the market is expected to be worth USD ... 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:4/27/2017)... ... April 27, 2017 , ... The Council for Agricultural ... to Jayson Lusk, a consummate communicator who promotes agricultural science and technology in ... as he explains how innovation and growth in agriculture are critical for food ...
(Date:4/26/2017)... (PRWEB) , ... April 26, 2017 , ... ... FDA’s GMP expectations for phase I clinical trials comes to Tampa, San Francisco ... biotechnology and pharma professionals representing FDA regulated organizations such as Pfizer Inc., Teva ...
(Date:4/26/2017)... 2017  Genisphere LLC, provider of the 3DNA ... collaborative and sponsored research agreement with the University ... The overall goal of the partnership is to ... designs and formulations after in vivo ... vasculature as well as inflammatory responses, demonstrating various ...
(Date:4/25/2017)... ... April 25, 2017 , ... Dr. Robert G. ... , proudly announced today that acclaimed physiatrist Matthew Terzella, MD, has joined the ... 2017. , Dr. Terzella completed his residency in Physical Medicine and Rehabilitation at ...
Breaking Biology Technology: