Yiqi Yang

Yiqi Yang, Ph.D.

Contact Information:
221 HECO Building
Lincoln: East Campus
(402) 472-5197

Charles Bessey Professor and Professor of Textiles; Professor of Biological Systems Engineering
Academic Degrees
  • Ph.D., Textile Science, Purdue University
  • M.E., Textile Chemical Engineering, Donghua University
  • Undergrad Diploma Textile Chemical Engineering, Donghua University
  • 15% Research
Areas of Research and Professional Interest
  • Biobased Materials
  • Polymer and Fibers
  • Green Processes for Fibers and Soft Materials
  •  Yang, Yiqi, and Reddy, Narenda. Method for making natural cellulosic fiber bundles from cellulosic sources. US Patent 7,887,672, Feb. 15, 2011.
  • Fan, Qinguo, Yang, Yiqi, Ugbolue, Samuel C., and Wilson, Alton R. Methods of enhancing dyeability of polymers. US Patent 6,646,026, November 11, 2003.
  • Berkstresser, IV, G.A., Dunbar, R.A., McLellan, G.R., Plischke, L.M.W., and Yang, Y.Q. Removing color from Ionically Dyed Recyclable Polymeric Materials. US Patent 6,083,283, July 4, 2000.
  • Yang, Y.Q., Plischke, L.M.W., McLellan, G.R., and Dickerson, J.L. Process for Separating Polyamide from Colorant in Recycling of Colored Polyamide Materials, Especially Carpets. US Patent 6,036,726, March 14, 2000.
  • Ladisch, M.R., Kohlman, K.L., Westgate, P.L., Weil, J.R., and Yang, Y.Q.  Processes for Treating Cellulosic Material. US Patent 5,846,787, December 8, 1998. 
  • Yang, Y.Q., and Li, S. A Process for Increasing the Crease Resistance of Silk Textiles and a Resulting Crease Resistant Textile. US Patent 5,296,269, March 22, 1994.

Selected Publications


  1. Song, K.L., Xu, H.L., Xu, L., Xie, K.L., and Yang*, Y.Q. Preparation of cellulose nanocrystal-reinforced keratin bioadsorbent for effective removal of dyes from aqueous solution. Bioresource Technology. 232. 254-262 (2017).
  2. Song, K.L., Xu, H.L., Mu, B.N., Xie, K.L., and Yang*, Y.Q. Non-toxic and clean crosslinking system for protein materials: effect of extenders on crosslinking performance. Journal of Cleaner Production. 150. 214-223 (2017).   
  3. Liu, P.C., Xu, H.L., Zhao, Y., and Yang*, Y.Q. Rheological properties of soy protein isolate solution for fibers and films. Food Hydrocolloids. 64. 149-156 (2017).
  4. Dong, Z., Hou, X.L., Haigler, I., and Yang*, Y.Q. Preparation and properties of cotton stalk bark fibers and their cotton blended yarns and fabrics. Journal of Cleaner Production. 139. 267-276 (2016).
  5. Xu, H.L., Yang, M.P., Hou, X.L., Li, W., Su, X.Z., and Yang*, Y.Q. Industrial trial of high-quality all green sizes composed of soy-derived protein and glycerol. Journal of Cleaner Production.  135. 1-8(2016).
  6. Liu, J., Wang, B.J., Xu, X.M., Chen, J.G., Chen, L.Y., and Yang*, Y.Q. Green Finishing of Cotton Fabrics Using Xylitol-Extended Citric Acid Cross-linking System on a Pilot Scale. ACS Sustainable Chemistry & Engineering. 4(3), 1131-1138 (2016).
  7. Pan, G.W., Zhao, Y., Xu, H.L., Hou, X.L., and Yang*, Y.Q. Compression Molded Composites from Discarded Nylon 6/Nylon 6,6 Carpets for Sustainable Industries. Journal of Cleaner Production. 117. 212-220 (2016).
  1. Xu, S.X., Chen, J.G., Wang, B.J., and Yang*, Y.Q. An Environmentally Responsible Polyester Dyeing Technology Using Liquid Paraffin. Journal of Cleaner Production. 112. 987-994 (2016).
  2. Xu, H.L., Canisag, H. and Yang*, Y.Q. Robust and Flexible Films from 100% Starch Crosslinked by Non-Toxic Disaccharide Derivative. ACS Sustainable Chemistry & Engineering. 3(11). 2631-2639 (2015).
  3. Mu, B.N., Xu, H.L., and Yang*, Y.Q., Accelerated hydrolysis of substituted cellulose for potential biofuel production: kinetic study and modeling. Bioresource Technology. 196, 332-338(2015).
  4. Xu, S.X., Chen, J.G., Wang, B.J., and Yang*, Y.Q. Sustainable and Hydrolysis-Free Dyeing Process for Polylactic Acid Using Non-Aqueous Medium. ACS Sustainable Chemistry & Engineering. 3(6) 1039-1046 (2015). Cover Report
  5. Xu, H.L., Liu, P., Mi, X., Xu, L., and Yang*, Y.Q., Potent and regularizable crosslinking of ultrafine fibrous protein scaffolds for tissue engineering using a cytocompatible disaccharide derivative. Journal of Materials Chemistry B. Materials for Biology and Medicine. 3(17) 3609-3616(2015).
  6. Zhao, Y., Zhao, Y.Z., Xu, H.L., and Yang*, Y.Q.  A Sustainable Slashing Industry Using Biodegradable Sizes from Modified Soy Proteins to Replace Petro-Based Poly(vinyl alcohol). Environmental Science & Technology. 49(4). 2391-2397(2015).
  7. Hou, X.L., Sun, F., Yan, D., Xu, H.L., Dong, Z., Li, Q., and Yang*, Y.Q.  Preparation of Lightweight Polypropylene Composites Reinforced by Cotton Stalk Fibers from Combined Steam Flash-Explosion and Alkaline Treatment. Journal of Cleaner Production. 83. 454-462 (2014).
  8. Xu, H.L., Cai, S. and Yang*, Y.Q.  Water-stable three dimensional ultrafine fibrous scaffolds from keratin for cartilage tissue engineering. Langmuir. 30(28), 8461-8470 (2014).
  9. Shi, Z., Reddy, N., Hou, X.L., and Yang*, Y.Q.  Tensile Properties of Thermoplastic Feather Films Grafted with Different Methacrylates. ACS Sustainable Chemistry & Engineering. 2(7), 1849-1856(2014).
  10. Xu, H.L., and Yang*, Y.Q.  Controlled de-crosslinking and disentanglement of feather keratin for fiber preparation via a green process. ACS Sustainable Chemistry & Engineering. 2(6) 1404-1410(2014).
  11. Reddy, N., Zhang, Y., and Yang*, Y.Q. Corn Distillers Dried Grains as Sustainable and Environmentally Friendly Warp Sizing Agents. ACS Sustainable Chemistry & Engineering. 1(12), 1564-1571(2013).
  12. Ma, H., Xu, H.L., Qu, J., Bian W., Zhong, Y. Reddy, N., Yang, Y.Q.,  and Mao*, Z. Self-assembly of covalently bonded nano-silicates with controllable modulus and thermal stability. Composites Science and Technology. 87 118-125(2013).
  13. Chen, L.H., Reddy, N., and Yang*, Y.Q.  Remediation of Environmental Pollution by Substituting Poly(vinyl alcohol) with Biodegradable Warp Size from Wheat Gluten. Environmental Science & Technology. 47(9) 4505-4511(2013).
  14. Jiang, Q.R., Reddy, N., Zhang, S.M., Roscioli, N., and Yang*, Y.Q.  Water Stable Electrospun Collagen Fibers from a Non-Toxic Solvent and Crosslinking System. Journal of Biomedical Materials Research Part A. 101A(5), 1237-1247(2013). Cover Report.
  15. Cai, S., Xu, H.L., Jiang, Q.R., and Yang*, Y.Q.  Novel 3D Electrospun Scaffolds with Fibers Oriented Randomly and Evenly in Three Dimensions to Closely Mimic the Unique Architectures of Extracellular Matrices in Soft Tissues: Fabrication and Mechanism Study. Langmuir. 29(7), 2311-2318(2013).
  16. Xu, H.L. Jiang, Q.R., Reddy, N., and Yang*, Y.Q.  Hollow Nanoparticles from Zein for Potential Medical Applications. Journal of Materials Chemistry. 21(45)18227-18235(2011) .
  17. Reddy, N. and Yang*, Y.Q. Potential of Plant Proteins for Medical Applications, Trends in Biotechnology.  29(10)490-498(2011).
  18. Reddy, N., Xu, H.L., and Yang*, Y.Q. Unique Natural-Protein Hollow-Nanofiber Membranes Produced by Weaver Ants for Medical Applications. Biotechnology and Bioengineering. 108(7) 1726-1733( 2011).
  19. Reddy, N., Hu, C.Y., Yan, K., and Yang*, Y.Q. Acetylation of Corn Distillers Dried Grains. Applied Energy. 88(5) 1664-1670(2011).
  20. Jiang, Q.R., Reddy, N., and Yang*, Y.Q.  Cytocompatible Crosslinking of Electrospun Zein Fibers for the Development of Water Stable Tissue Engineering Scaffolds. Acta Biomaterialia. 6(10) 4042-4051(2010).
  21. Xu, W.J., and Yang*, Y.Q. Drug Release and Its Relationship with Kinetic and Thermodynamic Parameters of Drug Sorption onto Starch Acetate Fibers.  Biotechnology and Bioengineering. 105(4) 814-822(2010).
  22. Reddy, N., and Yang*, Y.Q. Citric Acid Crosslinking of Starch Films. Food Chemistry. 118(3) 702-711 (2010).  
  23. Zou, Y., Huda, S., and Yang*, Y.Q. Light-Weight Composites from Long Wheat Straw and Polypropylene Web. Bioresource Technology, 101(6) 2026-2033 (2010).
  24. Reddy, N., and Yang*, Y.Q. Preparation and Properties of Starch Acetate Fibers for Potential Tissue Engineering Applications. Biotechnology and Bioengineering. 103(5), 1016-1022(2009).
  25. Reddy, N., and Yang*, Y.Q. Natural Cellulose Fibers from Soybean Straw. Bioresource Technology. 100(14), 3593-3598(2009).
  26. Reddy, N., and Yang*, Y.Q. Properties and Potential Applications of Natural Cellulose Fibers from the Bark of Cotton Stalks. Bioresource Technology. 100(14), 3563-3569(2009).
  27. Reddy, N. and Yang*, Y. Characterizing natural cellulose fibers from velvet leaf (Abutilon theophrasti) stem. Bioresource Technology. 99(7), 2449-2454(2008).
  28. Huda, S., and Yang*, Y.Q. Composites from Ground Chicken Quill and Polypropylene. Composites Science and Technology. 68(3-4), 790-798(2008).
  29. Reddy, N. and Yang*, Y.Q. Natural Cellulose Fibers from Switchgrass with Tensile Properties Similar to Cotton and Linen. Biotechnology and Bioengineering, 97(5) 1021-1027(2007).
  30. Reddy, N. and Yang*, Y.Q. Novel Protein Fibers from Wheat Gluten, Biomacromolecules, 8(2), 638-643 (2007).
  31. Yang*, Y.Q. and Naarani, V. Improvement of the lightfastness of reactive inkjet printed cotton, Dyes and Pigments, 74(1), 154-160 (2007).
  32. Reddy, N. and Yang*, Y.Q. Properties and potential applications of natural cellulose fibers from cornhusks. Green Chemistry, 7(4), 190 – 195 (2005). Cover Page Feature of the research.
  33. Reddy, N. and Yang*, Y.Q. Biofibers from agricultural byproducts for industrial applications. Trends in Biotechnology, 23(1) 22-27 (2005).
  34. Han, S., and Yang*, Y.Q. Antimicrobial activity of wool fabric treated with curcumin. Dyes and Pigments, 64(2), 157-161(2005).