Steve Michielsen

Steve Michielsen

Professor, TECS,
Director of Ph.D. Programs

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

College of Textiles 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


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.
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.
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.
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.
Nitrogen: phosphorous supply ratio and allometry in five alpine plant species
Luo, X., Mazer, S. J., Guo, H., Zhang, N., Weiner, J., & Hu, S. J. (2016), Ecology and Evolution, 6(24), 8881-8892.
Integration of yarn compression in modeling structural geometry of liquid resistant-repellent fabric surfaces and its impact on liquid behavior
Lim, J., Powell, N., Lee, H., & Michielsen, S. (2016), Journal of Materials Science, 51(15), 7199-7210.
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.
Impact dynamics of porcine drip bloodstains on fabrics
Williams, E. M. P., Dodds, M., Taylor, M. C., Li, J. Y., & Michielsen, S. (2016), Forensic Science International, 262, 66-72.

View All Publications


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)
Development of Robust CWA Repellent Fabric via Enhanced Superoleophobic Technology
Defense Threat Reduction Agency (DTRA)(5/14/12 - 7/13/14)


  • The Fiber Society - Treasurer
  • American Chemical Society - Treasurer
  • American Physical Society - Treasurer


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

Additional Information


Jingyao Li

Koushek Heda

Chengcheng Fang

Ruksana Baby


Wenbo Liu

Xiongfang Luo

Xiaolu Guo

Nguyen Vu

Jiaying Wu

Lu Liu

Edmir Silva

Guoqing Li

Yue Zhu

Graduate Projects

Superoleophobic Textiles

Wetting Behavior of Single Fibers

Surface Modification of Polymers

Enzyme Immobilization on Fiber Surfaces

Bloodstain Pattern Analysis on Textile Substrates

Artificial Blood

Transfer of Bloodstains from Fabric to Fabric

Areas of Expertise