Navigation Links
Detecting mirror molecules
Date:5/22/2013

at contain a mixture of many different species.

"It's an extremely common situation to have a mixture say a blood sample, or something from a complex chemical process - that contains a left-handed version of some compounds and a right handed version others for example, left handed alanine along with right handed citric acid. Optical polarimetery really struggles with such a situation if there's more than about 3 compounds, it's pretty hopeless. We hope our technique will provide a tool which can produce a complete analysis of such a mixture".

In contrast, the method developed by Patterson, Doyle and Schnell, by comparison, relies on what is called the electric dipole moment of each molecule, or the way each interacts with an external electric field. As a consequence of their mirror-image construction, molecules rotate in opposite directions when certain microwave fields are applied and this results in a signature which tells if the molecules are left or right handed.

To measure the dipole moment of molecules, the team used microwaves.

Researchers fed a gaseous sample into a chamber, then cooled it to -226 degrees Celsius. As the cold gas interacted with a precisely-tuned microwave fieldwhich caused the molecules to spin and give off their own microwave radiation. By monitoring those emissions, researchers are able to tell whether the molecules are right- or left-handed.

The researchers tested their method using the organic compound 1,2-propanediol, and were able to reliably differentiate between the two variants, but also determine the ratio of variants in a mixture by finely-tuning the microwave frequency.

"We can soon measure mixtures of different compounds and determine the enantiomer ratios of each," explains Schnell. In a next step the researchers plan to apply the technique in a broadband spectrometer at CFEL that could then measure the ratios in other mixtures of substances.

In the longer run,
'/>"/>

Contact: Peter Reuell
preuell@fas.harvard.edu
617-496-8070
Harvard University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Detecting breast cancers fingerprint in a droplet of blood
2. By detecting smallest virus, researchers open possibilities for early disease detection
3. Texas Biomed reports faster, more economical method for detecting bioterror threats
4. Holding a mirror to brain changes in autism
5. Iowa State, Ames Lab researchers invent new tool to study single biological molecules
6. New model gives hands-on help for learning the secrets of molecules
7. Weighing molecules 1 at a time
8. Nano-velcro clasps heavy metal molecules in its grips
9. Researchers develop new stamping process to pattern biomolecules at high resolution
10. A class of RNA molecules protects germ cells from damage, Penn vet researchers show
11. Dance of water molecules turns fire-colored beetles into antifreeze artists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/5/2015)... Calif. , Aug. 5, 2015 The ... continuous growth in applications, penetration into newer sectors, and ... year. The global biosensors space has seen the entry ... the market so far. (Photo - ... & Sullivan, Analysis of the Global Biosensors Market ...
(Date:8/3/2015)... Aug. 3, 2015 Synaptics, Inc. (Nasdaq: ... today announced that members of the executive management team ... Crest Global Technology Leadership Forum on Tuesday, August 11, ... be held at the Sonnenalp Resort in ... may include forward-looking information. An audio webcast of the ...
(Date:7/31/2015)... SHENZHEN, China , 31 de julho de 2015 ... Genômica (ICG-10, www.icg-10.org ) será realizada pela BGI de ... China . A conferência está ... inauguração em 2006, a ICG se tornou uma das ... e um dos encontros científicos mais dinâmicos, entusiastas e ...
Breaking Biology News(10 mins):Innovative Biosensors Incite Use in Non-Traditional Applications 2Innovative Biosensors Incite Use in Non-Traditional Applications 3Innovative Biosensors Incite Use in Non-Traditional Applications 4A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3
... years ago, the understory of late Mesozoic forests was dominated ... Today, only one genus from this group, Equisetum ... a prime candidate for being the oldest extant genus of ... the evolutionary beginnings of the genus Equisetum . Molecular ...
... The ability to use nanoparticles to deliver payloads of ... a fundamental change in chemotherapy treatment. But scientists are ... of this technology. Although developing nanoparticles ... while sparing normal, healthy tissues is still the ...
... from the Howard Hughes Medical Institute (HHMI)will be used ... to enable thousands of college and university science faculty ... biology education. The $3 million grant will expand ... Biology from a single location at the University of ...
Cached Biology News:Newly discovered plant fossil reveals more than age 2Newly discovered plant fossil reveals more than age 3Newly discovered plant fossil reveals more than age 4Hitting target in cancer fight now easier with new nanoparticle platform, UCLA scientists say 2HHMI helps summer institute expand to regional sites 2HHMI helps summer institute expand to regional sites 3HHMI helps summer institute expand to regional sites 4
(Date:8/31/2015)... 2015 MabVax Therapeutics Holdings, Inc. (OTCQB: MBVX) ... Company,s lead antibody, HuMab 5B1, will be garnering major ... the upcoming World Molecular Imaging Congress (WMIC) being held ... Researchers from the Department of Radiology at Memorial Sloan ... use of MabVax,s lead antibody as a PET imaging ...
(Date:8/31/2015)... , Aug. 31, 2015  For people with ... brighten their day. The biotechnology company, located in the ... one of the best potential therapies yet for people ... entitled, " Correction of Down syndrome and Edwards syndrome ... journal DNA Research . Elixirgen plans to develop ...
(Date:8/31/2015)... Calif. , Aug. 31, 2015 FLX ... and development of novel cancer immunotherapies, announced today that ... as Chief Executive Officer and William Ho , ... Ho join an experienced management team led by veterans ... Fridman , Ph.D., Chief Scientific Officer; Jay Powers ...
(Date:8/31/2015)... , ... August 31, 2015 , ... There’s a new ... Minerva is the first commercially available new FDA approved system in the last 14 ... of 92%, the high Amenorrhea (zero bleeding) rate of 66%, the high Patient Satisfaction ...
Breaking Biology Technology:MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 2MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 3MabVax Therapeutics HuMab 5B1 Antibody Is Highlighted at Upcoming World Molecular Imaging Congress in Five Separate Presentations 4New Down syndrome therapy discovered 2FLX Bio Announces Senior Management Hires and Initiation of Phase 1 Trial of FLX925 2FLX Bio Announces Senior Management Hires and Initiation of Phase 1 Trial of FLX925 3FLX Bio Announces Senior Management Hires and Initiation of Phase 1 Trial of FLX925 4U.S. FDA Approves Minerva Endometrial Ablation System 2U.S. FDA Approves Minerva Endometrial Ablation System 3
... ... Parkinson,s disease patients. Daniel Neal from Palm Springs, CA, gains the ability and confidence to ... ... portable device improves walking for Parkinson,s disease patients. Daniel Neal from Palm Springs, CA, gains ...
... LYNBROOK, N.Y., Sept. 11 BioSpecifics Technologies Corp. (Nasdaq: ... class collagenase-based products, today announced that BioSpecifics, President, Tom Wegman, ... Industry" Conference on Wednesday, September 16, 2009, at 9:00 am ... New York, NY. , , A live ...
... ... to demonstrate the power of nanotechnology based regenerative medicines. , ... (PRWEB) September 11, 2009 -- Long-time financier ... to rejuvenate living animals with advanced nanotechnologies developed by his labs. The goal of ...
Cached Biology Technology:New Superman Glasses for Parkinson's Disease Improve Walking and Quality of Life 2Matthew Sarad to Reverse Aging and Cure Cancer 2Matthew Sarad to Reverse Aging and Cure Cancer 3Matthew Sarad to Reverse Aging and Cure Cancer 4
Contains L-glutamine...
... The PhosphatidylEthanolamine-Binding Protein (PEBP) does ... serine protease inhibitors. PEBP is ... spleen, testis, ovary, muscle, and stomach. ... involved in is exerting inhibitory activity ...
...
Highly sensive assay for detecting apoptosis in living cells. See detailed descriptions above in K250-25....
Biology Products: