|Optimization of a Vacuum Ultraviolet Photoionization source for Gas Chromatography used with a High Resolution Time of Flight Mass Spectrometer|
Lloyd Allen and Viatcheslav Artaev
-Tune solution allows optimization of ion source parameters for
both proton transfer and direct ionization
-Independent ionization processes exist for M+ and MH+
-Optimizing for dopant signal intensity yields inferior results
-Degree of fragmentation remains relatively constant over a
range of source conditions
|Increasing gene editing efficiencies in eukaryotic cell lines by selection of appropriate CRISPR-Cas9 reagents |
Melissa L. Kelley, Žaklina Strezoska, Elena Maksimova, Hidevaldo Machado, Emily M. Anderson, Maren Mayer, Annaleen Vermeulen, Shawn McClelland, Anja van Brabant Smith
Overview of various CRISPR-Cas9 reagents to provide the highest efficiency of gene editing in your experiments.
|Knockdown of p53 by Accell self-delivering siRNA causes inhibition of p53-dependent DNA damage response in IMR-32 neuroblastoma cell line and β-amyloid toxicity in rat cortical neurons |
Žaklina Strezoska, Tamara Seredenina1, Devin Leake, Annaleen Vermeulen
Here we describe how application of Accell siRNA enabled the development of a high content screening assay in IMR-32 neuroblastoma cells and a whole culture cell viability assay in primary rat cortical neurons.
|High Performance Comprehensive Two-Dimensional Gas Chromatography Coupled with a High Resolution Multi-Reflecting TOFMS for Confident Non-Target Analyte Identification|
Scott J. Pugh, Viatcheslav Artaev, Mark F. Merrick, Jack Cochran
The use of comprehensive two-dimensional gas chromatography to help increase chromatographic resolution is a major step in tackling the problem of confident peak identification in a complex sample matrix. Combining the separation power of two-dimensional gas chromatography, with resolving power greater than 25,000, and sub ppm mass accuracies of a high resolution multi-reflecting TOFMS is the ideal solution to confident compound identification within a complex sample matrix.
|Fragmentation Trees for Automated de novo Interpretation of Impure Electron Ionization Spectra from Gas Chromatographic Complex Mixture Analysis—Chemical Deconvolution|
Kevin Siek, Vasily Makarov, Viatcheslav Artaev, Dmitry Mazur, Albert T. Lebedev
-Chemical deconvolution algorithms accurately reported independent
components of dead coelutions where such components belong to distinct chemical classes.
-Present algorithms fail to distinguish chemically similar analytes such as branched and linear alkanes, thus chemical deconvolution is not a
substitute for GCxGC.
-Chemical deconvolution algorithms accurately rejected more than 80% of spurious signals from manually curated spectra found to be contaminated with unrelated signa
|An Efficient Method for the Incorporation of Molecular Probes at Multiple/Specific sites in RNA: Levulinyl Protection for 2'-ACE ® , 5'-Silyl Oligoribonucleotide Synthesis|
Xiaoqin Cheng, Shawn Begay, Randy Rauen, Kelly Grimsley, Kaizhang He, Michael Delaney
A unique method that uses a levulinate ester as a protecting group to introduce conjugates or molecular probes to virtually any location in a synthetic RNA molecule is discussed. The Levulinyl protecting group is stable in RNA synthesis conditions and can be removed without affecting the other parts of the synthesized RNA. We show the capabilities of this approach with three high-complexity synthesis examples.
|Acoustophoretic microfluidic device for high throughput DNA sequencing|
V.V Unnikuttan1, H.N Unni 1
Multiphysics modelling for acoustic standing wave technology combined with micro-technology which can be used for manipulation and concentration on typical Lab-on-Chip devices for DNA sequencing.
|Advanced Microfluidic Mixing Device for the Study of Macromolecule Dynamics|
Shubha Jain, F. Azam, H.N.Unni
We have developed and characterized a micro-fluidic mixer to study the macro-molecule dynamics such as kinetics of protein folding, DNA sequencing, single molecule study and detection etc. on a micro-second timescale. It is observed that geometry of channel has significant impact on the mixing performance of channel and also mixing time. This mixer could be used for trapping, sequencing of micro and macro molecules such as cell, DNA and protein samples under flow condition
|Development of a Paper-Based Fluidic Device for Phosphorus Detection|
Patricia K. Rusch and Kyle A. Cissell
This poster displays the successful beginning stages of an innovative way to detect phosphorus in standing bodies of water by minimizing the quantity of chemicals used, reducing the cost of analysis instrumentation, allowing the potential for real-time monitoring, and producing consistent and reliable results.