Personal profile

Research Interests

The research focuses on environmental and microbial transport processes, with particular emphasis on understanding the basic processes that control interfacial transport in aquatic systems and the coupling of physical transport processes with biological and biogeochemical processes. I seek to define critical structure-transport-transformation relationships in dynamic natural environments such as rivers and in surface-attached microbial communities (biofilms). My work is highly collaborative and encompasses basic fluid mechanics, particle transport and morphodynamics, aquatic and surface chemistry, and microbiology. Important applications include contaminant transport and water quality, microbial habitat conditions and benthic microbial ecology, nutrient and carbon cycling, ecosystem degradation and restoration, control of biofilm-based infections and biofilm-resident pathogens in building systems, and the transmission of waterborne disease.

Training Experience

2007Microbial Pathogenesis at Northwestern Feinberg School of Medicine


  • Microbial transport processes
  • Environmental transport processes

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

sediment Earth & Environmental Sciences
particle Earth & Environmental Sciences
effect Earth & Environmental Sciences
solute Earth & Environmental Sciences
biofilm Earth & Environmental Sciences
colloid Earth & Environmental Sciences
bedform Earth & Environmental Sciences
river Earth & Environmental Sciences

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Research Output 1995 2018

Comparison of biofilm cell quantification methods for drinking water distribution systems

Waller, S. A., Packman, A. I. & Hausner, M. Jan 1 2018 In : Journal of Microbiological Methods. 144, p. 8-21 14 p.

Research output: Research - peer-reviewArticle

Drinking Water
Confocal Microscopy
Flow Cytometry
Cell Count

Interplay between flow and bioturbation enhances metal efflux from low-permeability sediments

Xie, M., Wang, N., Gaillard, J. F. & Packman, A. I. Jan 1 2018 In : Journal of Hazardous Materials. 341, p. 304-312 9 p.

Research output: Research - peer-reviewArticle


A Process-Based Model for Bioturbation-Induced Mixing

Aquino, T., Roche, K. R., Aubeneau, A., Packman, A. I. & Bolster, D. Dec 1 2017 In : Scientific Reports. 7, 1, 14287

Research output: Research - peer-reviewArticle

burrowing organism
sediment-water interface
1 Citations

Benthic biofilm controls on fine particle dynamics in streams

Roche, K. R., Drummond, J. D., Boano, F., Packman, A. I., Battin, T. J. & Hunter, W. R. Jan 1 2017 In : Water Resources Research. 53, 1, p. 222-236 15 p.

Research output: Research - peer-reviewArticle

particulate organic matter
1 Citations

Biofilm-induced bioclogging produces sharp interfaces in hyporheic flow, redox conditions, and microbial community structure

Caruso, A., Boano, F., Ridolfi, L., Chopp, D. L. & Packman, A. May 28 2017 In : Geophysical Research Letters. 44, 10, p. 4917-4925 9 p.

Research output: Research - peer-reviewArticle

redox conditions
microbial community
community structure