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Appendix c: glossary – Bio-Rad Experion RNA Analysis Kits User Manual

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Appendix C: Glossary

All-wells view
Mode of display within the electropherogram view
wherein electropherograms of all wells are shown

Baseline

Line of initial data that serves as the control, or
signal representing no fluorescence

Chip
Microfluidic device used to perform separation
using the Experion system

Electropherogram

Trace recording of signal (fluorescence
intensity) as a function of time; displayed in the
electropherogram view

Electropherogram view

Portion of the Experion software user interface
dedicated to display of electropherogram data

Electrophoresis station

Instrument that houses all the electrical, optical,
and hardware components necessary to perform
separation, staining, destaining, band detection,
and imaging of samples; equipped with a universal
power supply to operate at 100–240 V, 50–60 Hz

Gel priming well

Well of the microfluidics chip used to fill the
microchannels of the chip with gel-stain solution
(GS) during priming

Gel-stain solution (GS)
A mixture of gel matrix and stain; used for sample
separation and detection

Gel view

Portion of the Experion software user interface
dedicated to display of virtual gel data

LabChip

Microfluidic “lab-on-a-chip” technology developed
by Caliper Life Sciences; the Experion automated
electrophoresis system was built on LabChip
technology

Lower marker
RNA fragment (50 bp) included in the Experion
RNA sample buffer and used to normalize the
separation of fragments across all wells in the chip

Microchannels
Fine channels approximately the diameter of a
human hair are used for samples separation in
Experion microfluidic chips

Microfluidic technology (microfluidics)
Multidisciplinary field comprising physics,
chemistry, engineering, and biotechnology that
deals with the behavior, precise control, and
manipulation of microliter and nanoliter volumes

Normalization
Alignment of peak migration times across different
sample wells of the same chip; the lower marker is
used by Experion software for this purpose

Overlay
Function of Experion software that allows different
electropherograms to be superimposed for easier
comparison

Peak
Signal in an electropherogram generated
and identified by the peak-find settings to be
significantly different from the baseline

Priming
Filling the microchannels of the microfluidic chip
with gel-stain solution in preparation for analysis

Priming station
Instrument used to prepare chips for sample
analysis; applies pressure to the priming well
of the microfluidic chip and fills the network of
microchannels with the gel-stain solution

Project folder
User-defined folder containing multiple run files
comprising a particular project

Project tree

Hierarchical tree of all saved projects and the data
files they contain

Quantitation
Determination of the concentration of an RNA
sample

Results and settings
Portion of the Experion software user interface
dedicated to display of tabulated analysis results
and analysis settings and parameters

Experion Automated Electrophoresis System