Navigation Links
Quick and Inexpensive DNA Testing

Professor Lewis Rothberg of the University of Rochester was awarded a NYSTAR grant to resume his research on a recent discovery by one of his team members//. He along with his colleagues contributed to a remarkable research. They developed cost effective methods to study DNA material in quick simple steps. This will ensure better health and clean drinking water and make sure that we eat uncontaminated food. Rothberg's novel method can even be used in several other applications like assisting forensic experts to pinpoint criminals, and in earmarking potentially dangerous genetic sequences in medical research field. Rothberg's ground breaking research paves the way to identify sequences in genotypes in any DNA sample rapidly and cost effectively.

The technology is a novel fluorescent DNA screening assay, which rapidly determines whether specific DNA target sequences are present in an analyte. In simple terms, the analyte contains the DNA target sequences as well as other DNA sequences, and the assay filters out only the targets. Professor Rothberg's assay is based on the electrostatic properties of DNA.

The principle underlying the method is that single-stranded DNA and double-stranded DNA have significantly different affinities for attaching to ionically charged gold nanoparticles. Because ions have electric charges, having gained or lost electrons, they attract their opposites. An anion with a negative electric charge will attract positive charges, a cation with a positive charge will attract negative charges. Single-stranded DNA adsorbs on negatively charged citrate ions on the gold nanoparticles while double-stranded DNA does not. Given that both single-stranded and double-stranded DNA are (nominally) negatively charged, this proven phenomenon intrigues the research group.

The new assay determines whether a fluorescently-tagged short probe sequence of single-stranded DNA matches a sequence in the target analyte. When it does not, the fluorescently tagged probe adsorbs on a gold nanoparticle and its fluorescence is quenched. If the probe sequence is able to hybridize to the target, it will not adsorb on the gold and its fluorescence persists.

The new method is simple and effective. It costs very little, and it's very quick.

The most widespread and common method of screening DNA is called gel electrophoresis. Each test takes 1 hour and can cost as much as $1.00. Setting up a lab for gel electrophoresis requires a capital expenditure of $5,000. By contrast, Professor Rothberg's technique only requires 5 minutes, and it costs approximately $0.05 (literally five cents) per test. The capital expenditure to set up a lab with the new technique is only $600.


Related medicine news :

1. Prototype Detector detects Anthrax Quickly
2. Quicker healing with active bandages
3. Energy Therapy For Quicker Healing
4. Home Based Rapid HIV Test Kit to be approved by US – OraQuick Test Ki
5. Health Officials Inquire Into OraQuick HIV Tests
6. Quick Recovery in Rodeo Athletes
7. Child Diarrhoea Due To Rotavirus:Quick Relief By Short Course Drug
8. Depression Could Quickly Grow Into UK’s Biggest Proble
9. Quick freezing technique of the human egg
10. Google-Like Model Used To Diagnose Suspicious Breast Masses Quickly
11. Stress Could Have A Notable Effect In Quickening The Progression Of Alzheimers disease
Post Your Comments:

(Date:6/27/2016)... ... , ... recently awarded their highest five-star rating to Best Buy Eyeglasses, ... the United States and Canada wear eyeglasses. Once considered to be a purely functional ... a fashion statement. Even celebrities use glasses as a way of creating an iconic ...
(Date:6/26/2016)... , ... June 26, 2016 , ... PawPaws brand ... new product that was developed to enhance the health of felines. The formula is ... The two main herbs in the PawPaws Cat Kidney Support Supplement Soft ...
(Date:6/25/2016)... ... June 25, 2016 , ... Austin residents seeking Mohs surgery services, ... Mohs Surgery and to Dr. Russell Peckham for medical and surgical dermatology. , Dr. ... skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was ...
(Date:6/25/2016)... ... ... As a lifelong Southern Californian, Dr. Omkar Marathe earned his Bachelors in ... School of Medicine at UCLA. He trained in Internal Medicine at Scripps Green Hospital ... at the UCLA-Olive View-Cedars Sinai program where he had the opportunity to train in ...
(Date:6/24/2016)... Angeles, CA (PRWEB) , ... June 24, 2016 , ... ... surgery procedures that most people are unfamiliar with. The article goes on to state ... procedures, but also many of these less common operations such as calf and cheek ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Research and Markets has announced the addition ... - Forecast to 2022" report to their offering. ... to date financial data derived from varied research sources to ... potential impact on the market during the next five years, ... of sub markets, regional and country level analysis. The report ...
(Date:6/23/2016)... , June 23, 2016 , ... on Thursday, July 7, 2016 , , , , LOCATION: ... , , , , EXPERT PANELISTS:  , , , ... Senior Industry Analyst, Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and ... The global pharmaceutical industry is witnessing an exceptional era. ...
(Date:6/23/2016)... , June 23, 2016  Guerbet announced today ... Inc.,s Supplier Horizon Award . One ... Guerbet was recognized for its support of Premier members ... through clinical excellence, and commitment to lower costs. ... receive this recognition of our outstanding customer service from ...
Breaking Medicine Technology: