Corporate Banner
Satellite Banner
Technology Networks Header
Saturday, January 31, 2015
Technology Networks
 
Register | Sign in
Home Page>Posters

  Posters

Hot Start Amplification using OligoBeads via Gradual Release of Bound Primers
Dr. Nam Ngo, Dr. Laurent Jacquinod

OligoBeads provide a mean to store normalized primers used in performing enzymatic reactions including PCR. Primer bound beads eliminate the potential for pipeting errors and reduce contamination thus yielding lower repeat rates and less reagent wastage. The primers bound to the OligoBeads can be stored over a period of a few months without degradation in a nuclease free environment.

More information
Target length effect on sensitivity and specificity of oligonucleotide microarrays: Advantages of a modified PCR based labelling method over the dendrimer technology.
Abdullah Gibriel1*, Walter Kolch2 and Andrew Pitt1,3

Several methods have been developed for target labelling to enable DNA microarray quantification without taking careful consideration for target length effect. This report highlights the importance of choosing the optimum target length that would ensure specificity without compromising sensitivity of the assay. It also shows the advantages of using the modified PCR method over other methods in generating labelled amplicons of the desired lengths to maximize hybridization efficiency.

More information
On chip micro-extraction and real-time PCR with integrated SPAD optical fluorescence detection for nucleic acid analysis
Cristina Potrich, Elisa Morganti, Nicola Massari, Lucio Pancher, C. Kostoulas, Laura Pasquardini, Cristian Collini, Andrea Adami, Lorenzo Lunelli, F. Kalatzis, David Stoppa, Cecilia Pederzolli, Leandro Lorenzelli

A PDMS lab-on-a-chip for one step DNA isolation and real time-polymerase chain reaction (RT-PCR) has been designed, fabricated, and characterized for point-of-care clinical diagnostics. In addition, a module for on-chip optical detection based on SPAD - Single-Photon Avalanche Diode - detector has also been developed and used to monitor the presence of specific DNA polymorphisms possibly related to genetic diseases.

More information
Chemical Variant of 7-deaza-dGTP for Improved CG-rich PCR Amplification
E. H. Ashrafi, S. Shore, T. Le, V. Timoshchuk, N. Paul, R. Hogrefe, G. Zon, I. Koukhareva, A. Lebedev

PCR amplification of nucleic acids is a fundamental technique used in many molecular biology laboratories. Despite its wide use, certain GC-rich regions of DNA, such as mycobacterial disease targets, still remain a challenge for amplification. Sequences high in GC content are associated with the formation of secondary structure, which prevents adequate strand separation and DNA polymerase amplification. As a consequence, mispriming is prominent, complicating specific product formation.

More information
Periodontal Pockets Microbiota qPCR Analysis at Different Stages of Periodontitis
Oksana Zorina and Denis Rebrikov

Six major periodontal pathogens were quantified (with standardization to human gDNA) in periodontal pockets of periodontitis patients and healthy subjects by original qPCR assay. Relative amount of pathogens to total bacterial mass increased for P.gingivalis (100-fold), P.intermedia (10-fold) and T.forsythensis (10-fold).

More information
Low-volume on-chip single sperm cell analysis
Pickrahn I. E. ,Schmidt-Gann G., Kroneis T.

We performed low-volume on-chip DNA typing of single sperm cells isolated by means of laser microdissection. 16plex PCR was successful in 39 of 40 single cell samples yielding a mean PCR efficiency of 62.8%. In addition, we were able to identify a single-cell sample containing more than one cell enabling us to monitor the quality of the whole procedure, and hence, exclude “contaminated” samples from further analysis.

More information
Development and NDA-Level Validation of a Real-Time PCR Procedure for Detection and Quantification of Residual E.coli DNA Contamination of Biopharmaceutical Products
Dan Papa, Pedro J. Morales and Michael D. Sadick

Escherichia coli (E. coli) has been commonly used for the production of biopharmaceuticals. Among the impurities that must be monitored in biopharmaceuticals is residual host-cell DNA (HCD). This study describes the development and subsequent NDA-level validation of a real time PCR procedure developed in response to a client’s need to improve the sensitivity of detection and quantification of residual E. coli HCD in their drug product.

More information
Chemically Modified Primers for PCR and Ligation Applications
Elena Hidalgo Ashrafi, Sabrina Shore, Tony Le, Victor Timoshchuk, Natasha Paul, Richard Hogrefe, Inna Koukhareva, Alexandre Lebedev

PCR is an essential tool with utility in a variety of advanced applications. To improve the specificity of PCR, a unique approach to "Hot Start" PCR employing primers containing thermolabile modifications has been developed. These modified primers, named CleanAmp™ Primers, are amenable for use in Hot Start activation schemes as the modification is released after an initial denaturation step.

More information
Development of a Test Battery for Epigenetic Non-genotoxic Carcinogens
Haroon Rashid

The main objective of this sudy is to obtain an increased insight into the mechanisms of action of epigenetic carcinogens. Although the expected number of non-genotoxic carcinogens among newly registered compounds is unknown, there is a growing concern that when numbers of 2-year cancer bioassays are significantly reduced, non-genotoxic carcinogens may go undetected. Therefore there is a need for the development of alternative methods for their detection.

More information
<< 1 2 3 4 5 6 7 >>
Showing Results 21 - 30 of 89
Scientific News
Quickly Tracing The Source Of Tainted Food
Technology can trace contaminated food to its source.
Did You Hear The One About The Two Businessmen On A Plane?
EquipNet’s vision ‘to revolutionize the way companies manage their surplus assets’ was first conceived at 30,000 feet somewhere between Chicago and Boston in 1999. Here we learn more about the company's first 15 years.
Developing a Noninvasive Test for Endometriosis
UCSF researchers identify patterns of genetic activity that could help in early detection of disorder.
CDC Develops a New, Faster Lab Test for Enterovirus D68
Confirmed cases will appear to rise as agency accelerates specimen testing.
NanoString, Brigham and Women’s Hospital Collaborate
Research collaboration to accelerate translation of genomic discoveries into clinical diagnostics in oncology.
Unlocking The Non-Coding Half of Human Genome
Texas A&M biologists unlock non-coding half of human genome with novel DNA sequencing technique.
Improving Trout Resistance to a Deadly Disease
A highly sensitive real-time PCR test has been developed to measure F. psychrophilum in fish tissue.
Blood Test To Diagnose Depression
Test identifies nine blood markers tied to depression; predicts who will benefit from therapy.
Redefining High Risk Patients With Stage II Colon Cancer
microRNA-21 identified as an independent prognostic biomarker.
More People Testing Positive for Chikungunya Virus in the U.S.
Clinical testing volume and positivity rate both grew after the first case of the infectious disease spread to Western Hemisphere this year.
Skyscraper Banner
SELECTBIO Market Reports
LabTube - Videos for the Scientific Community
eposters - The Online Journal of Scientific Posters
Follow TechNetcom1 on Twitter
Technology Networks Ltd. on LinkedIn