Steve Michielsen

Steve Michielsen

Professor, TECS,
Director of Ph.D. Programs

Polymer and Color Chemistry
Textile Engineering, Chemistry and Science
Textile Technology

Wilson College Directory

About Steve Michielsen

Dr. Michielsen received his Ph.D. in Chemistry from the University of Chicago in 1979 working with Prof. Stuart A. Rice. He did a Post-Doctoral Fellowship in the Chemistry Department at Stanford University under the direction of Prof. Robert Pecora. He then joined DuPont at the Experimental Station in the Polymer Products Department in 1980. In 1990, he moved to DuPont Fibers. Then in 1995, he joined the faculty of the School of Textile and Fiber Engineering at the Georgia Institute of Technology. In 2004, he moved to North Carolina State University in the Department of Textile and Apparel Technology and Management and then in 2008, he moved to the Department of Textile Engineering, Chemistry and Science in the Wilson College of Textiles, where he resides today.

Prof. Michielsen invented an antiviral fabric with collaborators at Emory University (Atlanta, GA) and formed a spinoff company, LaamScience, where he served on the Board of Directors and Chairman.

His current research involves bloodstain pattern analysis BPA on textiles (forensics) and surface modification of fibers for a wide range of applications including medical textiles, superhydrophobic materials, antimicrobial textiles, and enzyme immobilized textiles. Dr. Michielsen emphasizes the theoretical understanding of physical and chemical phenomena on textiles combined with experimental verification and extension of these theories. His work on BPA is aimed at understanding how wetting of textiles with blood alters the stain patterns. This requires a detailed knowledge of the properties and construction of the textiles, wetting and wicking, and the behavior of blood in contact with surfaces.



In this work, we apply porcine blood to textiles and monitor the change in shape of the stain over time. For this we simultaneously video the stain on the front and back of the textile and then use image processing to extract size and shape over time. We also carefully characterize or construct the fabric and yarn construction. This allows us to obtain a detailed picture of the interaction of blood with the textile.

Surface modification

Surface modification of polymers, nanotechnology, smart polymers, structure/property/process relationships, polymer physics. In particular, we try to covalently bond 1-10 nm thick coatings onto polymeric surfaces to introduce new functionality. My research group has developed antimicrobial treatments, and superhydrophobic materials (with water contact angles as high as 178 degrees). We have increased surface electrical charges, dye-sites, and stain resistance. We are currently working to attach enzymes to the surface in an attempt to create nanofactories. Of particular interest is the interplay of materials science with polymer physics using polymer chemistry to impart the desired functionality.

Academic Degrees

  • Ph. D. Physical Chemistry, University of Chicago, 1979
  • B.S. Chemistry, State University of New York at Stony Brook, 1972


Equilibrium clamshell drops on conical surfaces: effect of curvature and gravity
Sun, X., Zhang, W., Lee, H. J., & Michielsen, S. (2019), COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 572, 203–210.
Impact Spatter Bloodstain Patterns on Textiles
Wu, J., Michielsen, S., & Baby, R. (2019), JOURNAL OF FORENSIC SCIENCES, 64(3), 702–710.
Print clarity on digitally printed textiles - a quantitative evaluation
Li, X., Powell, N. B., & Michielsen, S. (2019), JOURNAL OF THE TEXTILE INSTITUTE.
Impact of carpet construction on fluid penetration: The case of blood
Feng, C. C., Michielsen, S., & Attinger, D. (2018), Forensic Science International, 284, 184–193.
Profile of capillary bridges between two vertically stacked cylindrical fibers under gravitational effect
Sun, X. H., Lee, H. J., Michielsen, S., & Wilusz, E. (2018), Applied Surface Science, 441, 791–797.
Design of abrasion resistant super-antiwetting nylon surfaces
Li, G. Q., Lee, H. J., & Michielsen, S. (2017), New Journal of Chemistry, 41(22), 13593–13599.
Effect of yarn structure on wicking and its impact on bloodstain pattern analysis (BPA) on woven cotton fabrics
Li, X. Y., Li, J. Y., & Michielsen, S. (2017), Forensic Science International, 276, 41–50.
Geometric impact of void space in woven fabrics on oil resistance or repellency
Lim, J., Powell, N., Lee, H., & Michielsen, S. (2017), Journal of Materials Science, 52(13), 8149–8158.
Alternative method for determining the original drop volume of bloodstains on knit fabrics
Li, J. Y., Li, X. Y., & Michielsen, S. (2016), Forensic Science International, 263, 194–203.
Effect of fabric mounting method and backing material on bloodstain patterns of drip stains on textiles
Chang, J. Y. M., & Michielsen, S. (2016), International Journal of Legal Medicine, 130(3), 649–659.

View All Publications


Investigation of Low Percentage Fixation Mechanism (Causes) for Reactive Dye Digital Printing
Everlight Chemical Industrial Corporation(9/01/18 - 6/30/20)
Physical Characteristics of Spatter Stains on Textiles: Influence of Impact Surface Texture, Blood Drop Volume and Blood Drop Velocity
National Institute of Justice(1/01/19 - 12/31/20)
Development of Moisture Channeling Textiles
US Special Operations Command (USSOCOM)(6/26/17 - 12/23/17)
Bloodstain Pattern Analysis on Textiles: A Technology Transition Workshop
National Institute of Justice(6/15/17 - 9/30/18)
Arsenic Treatment of Contaminated Water Using Surface-Functionalized Fabrics
NCSU Center for Human Health and the Environment(7/01/16 - 6/30/17)
Finding the Region of Origin of Bloodspatters in Complex Situations: Novel Physics-Based Methods and Tools
National Institute of Justice(1/01/15 - 12/31/17)
Transfer of Bloodstains from Textile Surfaces: A Fundamental Analysis
National Institute of Justice(1/01/15 - 12/31/17)
Antistain Carpet
DESSO(4/01/12 - 3/31/13)
Bloodstain Patterns on Textile Surfaces: A Fundamental Analysis
National Institute of Justice(10/01/12 - 10/31/14)
Durable Antistatic Polyester
Kingwhale(5/01/11 - 4/30/12)


  • The Fiber Society
  • American Physical Society


  • TT 105 - Introduction to Textiles ,
  • TT 341 - Knitted Fabric Technology ,
  • TMS 762 - Physical Properties of Fiber Forming Polymers, Fibers and Fibrous Structures ,

Additional Information


Hey-Sang Kim

Graduate Projects

Superoleophobic Textiles

Wetting Behavior of Single Fibers and Fabrics

Surface Modification of Polymers

Bloodstain Pattern Analysis on Textile Substrates

Artificial Blood

Transfer of Bloodstains from Fabric to Fabric

Areas of Expertise