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Archive for the ‘Bio-Rad Product Highlight’ Category

What You Don’t See Truly Matters

 :: Posted by American Biotechnologist on 11-13-2013

All gels are not created equal when it comes to protein transfer. Mini-PROTEAN® TGX™ precast gels, together with the Trans-Blot® Turbo™ transfer system, offer you a complete solution for achieving fast electrophoresis and transfer times. In addition to speed, these innovative gels deliver maximum transfer of proteins onto membranes so you don’t see proteins left behind on the gel, ensuring quality western blotting results you can count on every time.

For more information visit Bio-Rad Laboratories TGX™ precast gel page.

Bio-Rad’s Droplet Digital PCR Highlighted at ASHG Annual Meeting

 :: Posted by American Biotechnologist on 10-22-2013

More accurate and precise assessment of copy number variation (CNV), the number of copies of a particular gene that are present in a genome, may lead to improved diagnosis and therapy for cancer and other diseases including autoimmune disorders. However, current technologies to determine copy number can be inaccurate, labor intensive, or prohibitively costly, diminishing their effectiveness in clinical applications.

Using Bio-Rad Laboratories’ Droplet Digital PCR (ddPCR™) technology, researchers can rapidly, accurately, and economically determine copy number states. Groups from the University of California, Davis, and the University of Colorado School of Medicine, among others, will present promising new research results at this year’s annual meeting of the American Society of Human Genetics (ASHG), held in Boston from October 22-25, 2013.

“Since its introduction in 2011, Bio-Rad Laboratory’s ddPCR technology has demonstrated the potential to be a transformative technology based on its greater precision, reproducibility, and sensitivity than conventional approaches such as real-time PCR,” said George Karlin-Neumann, the scientific affairs director at Bio-Rad’s Digital Biology Center.

Less than two years since Bio-Rad brought digital PCR systems to the market, studies using ddPCR assays have resulted in nearly 50 peer-reviewed publications.

Using ddPCR to Improve Pediatric Care

One example of how CNV determination with ddPCR technology shows promise for clinical applications is newborn CNV screening. 22q11.2 Deletion Syndrome (22q11DS) is the most common microdeletion syndrome in humans and is associated with more than 100 different diagnostic findings including craniofacial defects, developmental delay, and autism spectrum disorders. Researchers in Dr. Flora Tassone’s lab at the University of California, Davis have developed an inexpensive, rapid, sensitive, and specific alternative to fluorescent in-situ hybridization (FISH) – the currently accepted diagnostic tool – using ddPCR technology to identify newborns with 22q11DS. At the ASHG meeting, they will demonstrate for the first time the efficacy of ddPCR in large population screening studies (Program Number 2590F).

Researchers on Dr. James Sikela’s team at the University of Colorado School of Medicine are investigating DUF1220 copy number reduction and its association with microcephaly, a neurodevelopment disorder related to pediatric brain size. They will demonstrate how ddPCR is an effective technique for determining copy numbers of highly duplicated sequences such as DUF1220 and how ddPCR may be used for similar studies in future research where array comparative genomic hybridization (aCGH) analysis or qPCR are not accurate enough (Program Number 3215F).

In addition to the research findings described above, Bio-Rad’s ddPCR technology will be showcased in 11 other presentations. For more information, visit Bio-Rad’s booth at ASHG (booth #839). Bio-Rad will also be hosting an ASHG lunch workshop on Thursday, October 24 at 12:30 PM in room 211 as well as a hospitality suite on Thursday, October 24 at 7:45 PM at the New England Aquarium, 1 Central Wharf in Boston, featuring presentations from UC Davis and Harvard Medical School researchers. Please visit booth #839 for further details.

Better Chromatography through Modular Design

 :: Posted by American Biotechnologist on 10-07-2013

“It looked like a Medusa,” said Farah Mavandadi. “I was scared of it.”

Mavandadi, a senior product manager at Bio-Rad, was not describing a monster in a nightmare or a creature seen from a diving bell, but rather a research-scale chromatography system. Sprawling over a lab bench, instead of snakes the system had bunches of electronic cables and fluidic tubing that writhed and tangled around its various components.

Despite resembling an unholy mashup between Rube Goldberg and Jason and the Argonauts, this system was highly valued by the researcher who had wrangled it together, lovingly making each complex connection and hand-coding each component into the analytical software. The reason? Flexibility. Despite its messiness, the researcher could rearrange her system to get the most efficient fluidic path, to have right kind of detector in place, or make any other tweak in order to perform the best possible separation. Between having an “easy” instrument and having one she could change as her chromatography needs required, this researcher chose to face “Medusa.”

Read more…

Bio-Rad’s New ddPCR Library Quantification Kit Optimizes Performance of Ion Torrent NGS Systems

 :: Posted by American Biotechnologist on 09-24-2013

Bio-Rad Laboratories, Inc., today announced the availability of its new ddPCR™ library quantification kit for Ion Torrent library preparation. Used with Bio-Rad’s QX200™ Droplet Digital™ PCR system, the new kit provides researchers with the ability to precisely and directly measure amplifiable library concentrations.

The Ion AmpliSeq library kit is used to prepare libraries for Ion Torrent next-generation sequencing (NGS) systems. Using the ddPCR library quantification kit to quantify Ion AmpliSeq gDNA and RNA libraries maximizes the number of useable reads, enables consistent loading, and optimizes the utilization of every sequencing run. The resulting data provide additional measures of library quality not provided by other methods, including the percentage of nonamplifiable species such as adapter dimers and the size range of library inserts.

Additional key benefits of the ddPCR library quantification kit for Ion Torrent systems include:

  • Superior performance — produces highly precise measurements of amplifiable library concentrations without the use of standards
  • Visualization of library quality — ddPCR fluorescence amplitude plots highlight well formed and poorly formed libraries
  • Efficient utilization of sequencing runs — enables consistent loading and maximum efficiency of the Ion Torrent sequencing platforms

Kits for other NGS platforms are also in development. For more information on the ddPCR library quantification kit, please visit: www.bio-rad.com/ion-torrent.

Ion Torrent and Ion AmpliSeq are trademarks of Life Technologies Corporation.

Breaking Leukemia’s Limits of Detection with Droplet Digital™ PCR

 :: Posted by American Biotechnologist on 09-17-2013