Navigation Links
Ancient ants arose 140-168 million years ago

Scientists have used mass spectrometry for decades to determine the chemical composition of samples but rarely has it been used to identify viruses, and never in complex environmental samples.

Researchers at the Johns Hopkins Bloomberg School of Public Health recently demonstrated that proteomic mass spectrometry has the potential to be applied for this purpose. Using a two-step process, researchers successfully separated, purified and concentrated a norovirus surrogate from a clinical sample within a few hours. Nanospray mass spectrometry was used to demonstrate the feasibility of detecting norovirus particles in the purified concentrates.

Human norovirus is responsible for an estimated 23 million cases of gastrointestinal illness in the United States each year. This pathogen is a particular problem aboard cruise ships. The researchers believe that their mass spectrometric method could potentially be used for biodefense and public health preparedness as a tool for rapidly detecting norovirus--a category B bioterrorism agent--and other viral public health threats. The study is published in the April 2006 edition of Applied and Environmental Microbiology.

In simplified terms, mass spectrometry is essentially a scale for weighing molecules. A laser turns a sample into ionized particles, which are then accelerated in a vacuum toward a detector. The time lapsed prior to registering on the detector helps researchers determine the mass--or weight--of the particles. By targeting characteristic particles, or peptides, belonging to the viral coat protein, the virus can be positively identified by matching the results to entries in genetic databases.

In the Hopkins study, the researchers analyzed a stool sample treated with virus-like particles, which closely resemble norovirus but are noninfectious. Using mass spectrometry, the researchers were able to detect the norovirus capsid protein down to levels typically found in clinical specimens fro
'"/>

Source:Harvard University


Page: 1 2

Related biology news :

1. Ancient olfaction protein is shared by many bugs, offering new pest control target
2. Ancient immune defense mechanism is no match for HIV-1
3. Ancient DNA helps clarify the origins of two extinct New World horse species
4. Researchers Discover Ancient Origins Of Tuberculosis-causing Bacteria
5. Ancient DNA confirms single origin of Malagasy primates
6. Ancient anthropoid origins discovered in Africa
7. Ancient trans-Atlantic swarm brought locusts to the New World
8. Ancient humans brought bottle gourds to the Americas from Asia
9. Ancient DNA helps UF researchers unearth potential hemophilia therapy
10. Ancient DNA provides clues to the evolution of social behavior
11. Ancient fossil DNA found preserved in crystal
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Ancient ants arose million years ago

(Date:12/19/2014)... Dec. 18, 2014  23andMe, Inc., the leading personal ... that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four ... has served as a meeting place for peoples ... and the ongoing mixing of peoples with African, European, ...
(Date:12/17/2014)... N.C. , Dec. 16, 2014 Valencell, ... licensed its PerformTek biometric technology to industry leaders such ... highly accurate, clinically validated, biometric wearable products. These products ... 6-9 in Las Vegas . ... technology is accurate, flexible and robust – with the ...
(Date:12/11/2014)... 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition ... report to their offering. ... the adoption of multimodal biometric systems. Multimodal biometric ... individual for verification and identification purposes. This helps ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... GOCE satellite from the Plesetsk cosmodrome in northern Russia had ... due to an anomaly identified in one of the units ... stage (Breeze KM ). The correction of the problem ... perform this operation, it will be necessary to de-mate the ...
... physician-geneticist and leader of the Human Genome Project, has ... the Inamori International Center for Ethics and Excellence at ... and Kyoto Prizes for science, technology, philosophy and the ... ethical leaders. It is presented annually to an individual ...
... de los Alimentos (Institute of Nutrition and Food Technology) ... doing research into the positive effects of Mediterranean diet,s ... is a new research line about pancreatic cancer cells. ... points out that in the study ,Influence of the ...
Cached Biology News:Leader of Human Genome Project honored with the Inamori Ethics Prize 2New studies on the Mediterranean diet confirm its effectiveness for chronic disease prevention 2
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... Maryland, July 1 Human Genome Sciences, Inc. (Nasdaq: ... top-line results available on Monday, July 20, from BLISS-52, the ... (belimumab, formerly LymphoStat-B(R)) in systemic lupus erythematosus (SLE). ... ) , , Senior management will host a ...
... DUSSELDORF, Germany, July 1 Gerresheimer AG, a,leading ... life,science industry, has sold its Technical Plastics operations, which are ... Group, Bad Soden,Germany. "Through the sale of the Technical Plastics ... step in its focus on the core,business of pharma & ...
... modified chlorophyll from an alga so that it resembles the ... able to determine the structure of these light antennae. This ... an artificial leaf. The researchers will be publishing an article ... the PNAS journal in the week starting 29 ...
Cached Biology Technology:Human Genome Sciences to Host July 20 Conference Call to Discuss Top-Line Phase 3 Results for Benlysta(TM) (Formerly Lymphostat-B(R)) in Systemic Lupus Erythematosus 2Gerresheimer Sells Technical Plastics Business 2First step to converting solar energy using 'artificial leaf' 2
Whole blood is collected from canines (any breed, either sex), refrigerated within 6 hours, processed within 24 hours and frozen at -20C....
acridine orange 10-nonyl bromide (nonyl acridine orange)...
anti-dansyl, rabbit IgG fraction *1 mg/mL* Secondary Detection; Anti-Dye and Anti-Hapten Antibodies...
Because it is manufactured at our ISO 9001–certified facilities in Eugene, Oregon, we can guarantee that FluoroPure grade propidium iodide is greater than or equal to 98% pure by HPLC....
Biology Products: