Award Abstract #0210839
NIRT: Bioavailability of Aromatic Hydrocarbons and Dynamics of Their Interactions with Humic and Fulvic Acids: Linking Molecular- and Microbial-Scale Interactions

NSF Org:	CBET Division of Chemical, Bioengineering, Environmental, and Transport Systems
Initial Amendment Date:	September 25, 2002
Latest Amendment Date:	February 18, 2009
Award Number:	0210839
Award Instrument:	Continuing grant
Program Manager:	Paul L. Bishop CBET Division of Chemical, Bioengineering, Environmental, and Transport Systems ENG Directorate for Engineering
Start Date:	October 1, 2002
Expires:	September 30, 2009 (Estimated)
Awarded Amount to Date:	$1113764
Investigator(s):	Mark Nanny nanny@ou.edu (Principal Investigator) Kathleen Duncan (Co-Principal Investigator) Margaret Eastman (Co-Principal Investigator)
Sponsor:	University of Oklahoma Norman Campus 201 David L. Boren Blvd. NORMAN, OK 73019 405/325-4757
NSF Program(s):	EXP PROG TO STIM COMP RES, MICROBIAL GENOME SEQUENCING, ENVIRONMENTAL ENGINEERING
Field Application(s):	0313040 Water Pollution, 0316000 Trace Contaminants
Program Reference Code(s):	EGCH, 9187, 9150, 1674, 011E
Program Element Code(s):	9150, 7187, 1440

ABSTRACT

0210839 Nanny This proposal was received in response to the Nanoscale Science and Engineering Initiative NSF 01-157, category NIRT. The project will identify key physical, chemical and biological conditions at the nano-scale that govern the bioavailability of aromatic hydrocarbons associated with NOM isolated from soils, sediments, and landfills. After NOM characterization and quantitation, the impact of the localized molecular scale interactions, % hydrocarbon residue, and activation energy of interactions will be assessed with respect to bioavailability. Naphthalene dioxygenase activity will be characterized as a function of NOM type and concentration and NOM-aromatic aging. Coupling to microbial bioavailability will be made using bioluminescence reporting. An outcome from the research will be the development of NMR based characterizations that will correlate with an enzymatic assay and a microbial bioassay.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

Gadad, Praveen; Nanny, Mark A.. "Influence of cations on noncovalent interactions between 6-propionyl-2-dimethylaminonaphthalene (PRODAN) and dissolved fulvic and humic acids," Water Research, v.42, 2008, p. 4818.

M. A. Eastman and M. A. Nanny. "Fitting of Deuterium Quadrupole Echo Spectra with Multiple Motional Models," Journal of Magnetic Resonance, v.184 (2), 2007, p. 302.

Praveen Gadad, Hongxia Lei, and Mark A. Nanny.. "Characterization of noncovalent interactions between 6-propionyl-2-dimethylaminonaphthalene (PRODAN) and dissolved fulvic and humic acids," Water Research, v.41, 2007, p. 4488.

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