Title
GPU-based real-time detection and analysis of biological targets using solid-state nanopores.
Abstract
The emergence of nanoscale devices has provided robust interfaces to biomolecules that faithfully transduce and define fundamental interactions of living systems. Measuring single-event behavior of important targets like DNA, and diseased cells has been achieved with a number of devices and systems. An important dimension to these systems, often discounted, is real-time computational decision-making from measured data. This paper describes an adaptive approach that can record single-molecule or single-cell events in real-time and automatically analyze patterns from the measured data. The automated analysis of measured data is done using a static threshold technique and two variations of a dynamic threshold technique: baseline-tracker and moving average filtering. Dynamic techniques for threshold detection enable noise suppression in the measured data and precise detection of patterns, but at the cost of more complex software as compared to static technique. To mitigate the computational overhead, a real-time system is implemented that uses advanced I/O techniques to minimize the execution stalls, thus enabling the system to process data significantly faster than the electrical measurement setup. Furthermore, the algorithms are implemented on programmable graphics processing units for parallel pattern detection. Our implementation provides five times faster data acquisition and pattern detection than the maximum sampling rate of the electrical measurement setup.
Year
DOI
Venue
2012
10.1007/s11517-012-0893-9
Med. Biol. Engineering and Computing
Keywords
Field
DocType
Solid-state nanopores, Real-time computer systems, Automated pattern recognition, Computer-assisted diagnosis, DNA translocation events
Graphics,Overhead (computing),Living systems,Computer science,Sampling (signal processing),Data acquisition,Filter (signal processing),Real-time computing,Software,Moving average
Journal
Volume
Issue
ISSN
50
6
1741-0444
Citations 
PageRank 
References 
3
0.44
10
Authors
5
Name
Order
Citations
PageRank
Abdul Hafeez151.63
Waseem Asghar230.78
M. Mustafa Rafique315715.49
Samir M. Iqbal442.95
Ali R Butt521017.36