All Stories

  1. Survey of Cellular Autofluorescence Variation in Saliva Deposits: Implications for Estimating Time Since Deposition

    Article • Forensic Sciences, April 2026, MDPI AG

    Dr. Christopher J Ehrhardt

  2. Time-Since-Deposition Signatures for Canine Blood Based on Cellular Autofluorescence

    Article • Veterinary Sciences, December 2025, MDPI AG

    Dr. Christopher J Ehrhardt

  3. Morphological and Autofluorescence Dataset for ‘Touch’ Epidermal Cell Populations Collected with Imaging Flow Cytometry

    Article • F1000Research, October 2024, Faculty of 1000, Ltd.

    Dr. Christopher J Ehrhardt

  4. Differentiation of vaginal cells from epidermal cells using morphological and autofluorescence properties: Implications for sexual assault casework involving digital penetration

    Article • Forensic Science International Genetics, September 2023, Elsevier

    Dr. Christopher J Ehrhardt

  5. Comparison of three quantitative approaches for estimating time-since-deposition from autofluorescence and morphological profiles of cell populations from forensic biological samples

    Article • April 2023, Cold Spring Harbor Laboratory Press

    Dr. Christopher J Ehrhardt

  6. Differentiation of vaginal cells from epidermal cells using morphological and autofluorescence properties: Implications for sexual assault casework involving digital penetration

    Article • March 2023, Cold Spring Harbor Laboratory Press

    Dr. Christopher J Ehrhardt

  7. Use of hormone-specific antibody probes for differential labeling of contributor cell populations in trace DNA mixtures

    Article • International Journal of Legal Medicine, September 2022, Springer Science + Business Media

    Dr. Christopher J Ehrhardt

  8. Technical note: Survey of extracellular and cell-pellet-associated DNA from ‘touch’/trace samples

    Article • Forensic Science International, January 2021, Elsevier

    Dr. Christopher J Ehrhardt

  9. Open source software tool for the automated detection and characterization of epithelial cells from trace biological samples

    Article • Forensic Science International, July 2020, Elsevier

    Dr. Christopher J Ehrhardt

  10. Open source software tool for the automated detection and characterization of epithelial cells from trace biological samples

    Article • March 2020, Cold Spring Harbor Laboratory Press

    Dr. Christopher J Ehrhardt

  11. Testing Hormone-specific Antibody Probes for Presumptive Detection and Separation of Contributor Cell Populations in Trace DNA Mixtures

    Article • December 2019, Cold Spring Harbor Laboratory Press

    Dr. Christopher J Ehrhardt

  12. Evaluation of the suitability of cranial measurements obtained from surface-rendered CT scans of living people for estimating sex and ancestry

    Article • Journal of Forensic Radiology and Imaging, December 2019, Elsevier

    Dr. Christopher J Ehrhardt

  13. Reducing complexity of cell mixtures using antibody probes and flow cytometry.

    Article • Forensic Science International Genetics, September 2018, Elsevier

    Dr. Christopher J Ehrhardt

  14. Identify types of human epithelial cells using morphology and autofluorescence

    Article • PLOS One, May 2018, PLOS

    Dr. Christopher J Ehrhardt

  15. Nanoscale characterization of forensically relevant epithelial cells and surface associated extracellular DNA

    Article • Forensic Science International, June 2017, Elsevier

    Dr. Christopher J Ehrhardt

  16. Resolving Forensic Cell Mixtures with Autofluorescence

    Article • Analytical and Bioanalytical Chemistry, May 2017, Springer Science + Business Media

    Dr. Christopher J Ehrhardt

  17. Flow Cytometry Dataset for Forensic Biology

    Article • F1000Research, October 2016, Faculty of 1000, Ltd.

    Dr. Christopher J Ehrhardt

  18. Nanoscale imaging and hydrophobicity mapping of the antimicrobial effect of copper on bacterial surfaces

    Article • Micron, September 2016, Elsevier

    Dr. Christopher J Ehrhardt

  19. The effect of growth temperature on the nanoscale biochemical surface properties of Yersinia pestis

    Article • Analytical and Bioanalytical Chemistry, June 2016, Springer Science + Business Media

    Dr. Christopher J Ehrhardt

  20. Analysis of Antibody Hybridization and Autofluorescence in Touch Samples by Flow Cytometry: Implications for Front End Separation of Trace Mixture Evidence

    Article • March 2016, Cold Spring Harbor Laboratory Press

    Dr. Christopher J Ehrhardt

  21. Flow cytometry analysis of epithelial cell populations from touch samples using the BD Influx flow cytometry platform

    Article • F1000Research, March 2016, Faculty of 1000, Ltd.

    Dr. Christopher J Ehrhardt

  22. Forward-scatter and side-scatter dataset for epithelial cells from touch samples analyzed by flow cytometry

    Article • Data in Brief, March 2016, Elsevier

    Dr. Christopher J Ehrhardt

  23. Evaluation of whole cell fixation methods for the analysis of nanoscale surface features ofYersinia pestisKIM

    Article • Journal of Microscopy, February 2016, Wiley

    Dr. Christopher J Ehrhardt

  24. New forensic signatures for touch DNA evidence

    Article • F1000Research, February 2016, Faculty of 1000, Ltd.

    Dr. Christopher J Ehrhardt

  25. Analysis of shed epidermal cells from touch DNA samples

    Article • F1000Research, November 2015, Faculty of 1000, Ltd.

    Dr. Christopher J Ehrhardt

  26. Mixture Separation for Forensic DNA Profiling

    Article • Forensic Science International Genetics, July 2015, Elsevier

    Dr. Christopher J Ehrhardt

  27. Forensic differentiation of Bacillus cereus spores grown using different culture media using Raman spectroscopy

    Article • Analytical and Bioanalytical Chemistry, April 2015, Springer Science + Business Media

    Dr. Christopher J Ehrhardt

  28. Framework for Analyzing Bacillus Fatty Acids for Microbial Forensics

    Article • Journal of Forensic Sciences, April 2015, Wiley

    Dr. Christopher J Ehrhardt

  29. Morphological and mechanical imaging ofBacillus cereusspore formation at the nanoscale

    Article • Journal of Microscopy, January 2015, Wiley

    Dr. Christopher J Ehrhardt

  30. Whole Cell Biochemical and Nanomechanical Investigations of Bacillus Using Atomic Force Microscopy

    Article • Biophysical Journal, January 2015, Elsevier

    Dr. Christopher J Ehrhardt

  31. Integration of stable isotope and trace contaminant concentration for enhanced forensic acetone discrimination

    Article • Talanta, November 2013, Elsevier

    Dr. Christopher J Ehrhardt

  32. Integration of gas chromatography mass spectrometry methods for differentiating ricin preparation methods

    Article • The Analyst, January 2012, Royal Society of Chemistry

    Dr. Christopher J Ehrhardt

  33. Chemical and Physical Signatures for Microbial Forensics

    Article • January 2012, Springer Science + Business Media

    Dr. Christopher J Ehrhardt

  34. Fatty Acids and Lipids

    Article • November 2011, Springer Science + Business Media

    Dr. Christopher J Ehrhardt

  35. Optical characterization of a precipitation event in a moderately hypersaline lake

    Article • Geophysical Research Letters, November 2010, American Geophysical Union (AGU)

    Dr. Christopher J Ehrhardt

  36. Forensic Analysis of Microbial Lipids

    Article • Applied and Environmental Microbiology, January 2010, ASM Journals

    Dr. Christopher J Ehrhardt

  37. Archaeal and Bacterial Communities Respond Differently to Environmental Gradients in Anoxic Sediments of a California Hypersaline Lake, the Salton Sea

    Article • Applied and Environmental Microbiology, November 2009, ASM Journals

    Dr. Christopher J Ehrhardt

  38. Phylogeny and molecular taxonomy of the Bacillus subtilis species complex and description of Bacillus subtilis subsp. inaquosorum subsp. nov.

    Article • INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, July 2009, Society for General Microbiology

    Dr. Christopher J Ehrhardt

  39. Effects of Soluble Cadmium Salts Versus CdSe Quantum Dots on the Growth of PlanktonicPseudomonas aeruginosa

    Article • Environmental Science & Technology, April 2009, American Chemical Society (ACS)

    Dr. Christopher J Ehrhardt

  40. Allochronic speciation, secondary contact, and reproductive character displacement in periodical cicadas (Hemiptera: Magicicada spp.): genetic, morphological, and behavioural evidence

    Article • Molecular Ecology, July 2008, Wiley

    Dr. Christopher J Ehrhardt

  41. Evidence for hydrothermal Archaea within the basaltic flanks of the East Pacific Rise

    Article • Environmental Microbiology, April 2007, Wiley

    Dr. Christopher J Ehrhardt, Dr. Patricia A Holden

  42. Manifestations of hydrothermal discharge from young abyssal hills on the fast-spreading East Pacific Rise flank

    Article • Geology, January 2005, Geological Society of America

    Dr. Christopher J Ehrhardt