Stephen Johnson

Research Associate
Lawrence, KS, USA
Research Associate in the Tertiary Oil Recovery Program, University of Kansas. Member of the Royal Society of Biology, Society of Petroleum Engineers and Society for General Microbiology.


  • Polyelectrolyte complex nanoparticles to entrap enzymes for hydraulic fracturing fluid cleanup
  • Acute toxicity of linear alkylbenzene to Caenorhabditis elegans Maupas, 1900 in Soil DOI: 10.1007/s00128-007-9195-6
  • Anaerobic biodegradation of linear alkylbenzenes under nitrate-reducing conditions: Isomeric ratio as a monitoring tool DOI: 10.2462/09670513.858
  • Contribution of anaerobic microbial activity to natural attenuation of benzene in groundwater DOI: 10.1016/S0013-7952(03)00102-9
  • Delayed HPAM gelation via transient sequestration of chromium in polyelectrolyte complex nanoparticles DOI: 10.1021/ma800211d
  • Effects of divalent cations, seawater and formation brine on positively charged polyethylenimine/dextran sulfate/Cr(III) polyelectrolyte complexes and HPAM/Cr(III) gelation DOI: 10.1002/app.31052
  • Enhanced wettability alteration by surfactants with multiple hydrophilic moieties DOI: 10.1007/s11743-010-1193-
  • Fracturing fluid cleanup by controlled release of enzymes from polyelectrolyte complex nanoparticles DOI: 10.1002/app.33343
  • Mechanistic study of wettability alteration using surfactants with applications in naturally fractured reservoirs DOI: 10.1021/la802464u
  • Microbial degradation of linear alkylbenzene cable oil in soil and aqueous culture under aerobic and anaerobic conditions
  • Monitoring and control of in situ bioremediation of soil contaminated with cable oil
  • Polyelectrolyte complex nanoparticles for protection and delayed release of enzymes in alkaline pH and at elevated temperature during hydraulic fracturing of oil wells DOI: 10.1002/app.36845
  • Potential for anaerobic biodegradation of linear alkylbenzene cable oils: Literature review and preliminary investigation

Stephen's public data