- 1. Powdered sugar, its not just for doughnuts
anymoreLLNL-PRES-642415This work was performed under the auspices
of theU.S. Department of Energy by Lawrence LivermoreNational
Laboratory under contract DE-AC52-07NA27344.Lawrence Livermore
National Security, LLCGeorge Farquar, PhDIMAGE
2. Aerosol: suspension of fine solid particles or liquid
droplets ina gas Biosecurity Track airborne contaminants
Environmental effects Human health effectsLawrence Livermore
National Laboratory LLNL-PRES-642415 3. DNA barcoded particles for
aerosol transport studies and sourceattribution The simulant is an
inert, non-living, non-viable, non-infectiousmaterial. It consist
of two parts:1. Non-biological DNA molecules used for
identification2. Sugar (a food-grade carbohydrateencapsulation
material, i.e. Maltodextrin) 100 DNA base pairs allows for 1.6x1060
possible barcodes(Unlimited)Lawrence Livermore National Laboratory
LLNL-PRES-6424153FDA approved food based material, found
insweeteners and other products 4. As a result of the support
received from DTRA and LLNL as a part of this testing,PFPA has been
able to make marked performance improvements to the
Pentagonsbiological detection systemJonathan Cofer, Deputy Director
of PFPALawrence Livermore National Laboratory LLNL-PRES-642415 5.
Testing occurred on November 2012 and February 2013 Primary
objective was to determine the suitability of the new simulant as a
tool for validation testing of aerosolsystems. Four releases
occurred. Evaluating initial concept and a simultaneous release.
PFPA sensors were triggered and all filters collected from DFUs and
swabs were positive for the test material. PFPA models were
evaluated and compared to experimental data.Lawrence Livermore
National Laboratory LLNL-PRES-6424155Data collected with:Dry Filter
Units (DFUs)Handheld particle counters(MET one)Aerodynamic Particle
Sizer (APS)Spectrometer 6. DNATrax Safemade with sugar! Multiple
releases can be conducted in a short timeperiod or simultaneously
Post-testing cleanup is minimal Low burden for approval Tunable
particle size Traditional Spores Cleanup required Difficulty
obtaining approval forreleases Single release Barcoded Spores
Difficult to receive approval to releasegenetically modified
organisms Tracer chemicals (gases) Single releases Vastly different
transport properties from1-10 micron particlesLawrence Livermore
National Laboratory LLNL-PRES-642415 7. Catherine
[email protected] Livermore National Laboratory
LLNL-PRES-642415 7