Photo of Stephanie Butler Velegol

Stephanie Butler Velegol

Teaching Professor


  • Chemical Engineering

224 Chemical and Biomedical Engineering Building


Personal or Departmental Website

Google Scholar Profile

Interest Areas:

Interests: Sustainably water treatment using Moringa oleifera seeds, active learning and flipped classrooms




  • BS, Chemical Engineering, Drexel University, 1996
  • Ph D, Chemical Engineering, Carnegie Mellon University, 2000


Journal Articles

  • Laxmicharan Samineni, Xiong Boya, Manish Kumar, Darrell Velegol, Costas D Maranas, Andrew Pei, Huiran Wang, Roman Dickey, Paula Soto, Lynnicia Massenburg, Thanh Nguyen, Ratul Chowdhury and Stephanie B Velegol, 2019, "7-log virus removal in a simple functionalized sand filter", Environmental Science and Technology, 53, (21), pp. 12706-12714
  • Stephanie B Velegol, Darrell Velegol, Robert Tilton, Brittany A. Nordmark, Todd M. Przybycien, Toni M. Bechtel and John K. Riley, 2018, "Moringa oleifera seed protein adsorption to silica: Effects of water hardness, fractionation, and fatty acid extraction", Langmuir, 34, (16), pp. 4852-4860
  • Boya Xiong, Emma Clement, Bethany Piechowicz, Ziyuhan Wang, Rose Marinaro, Adam Uliana, Manish Kumar and Stephanie B Velegol, 2017, "Moringa oleifera f-sand filters for sustainable water purification", Environmental Science and Technology Letters, 5, (1), pp. 38-42
  • ABUBAKAR Bashir, Boya Xiong, Kathleen Lauser, Manish Kumar, Darrell Velegol and Stephanie B Velegol, 2017, "Effects of moringa oleifera lam. seed maturity and harvesting period on water clarification", Nigerian Journal of Scientific Research
  • Stephanie B Velegol, Manish Kumar, Kathleen Lauser, Kevin Shebek, Allen Schantz and Ian Sines, 2015, "The Flocculating Cationic Polypetide from Moringa oleifera Seeds Damages Bacterial Cell Membranes by Causing Membrane Fusion", Langmuir, 31, (15), pp. 4496ā€“4502
  • Stephanie B Velegol, Sarah E Zappe and Emily Mahoney, 2015, "The Evolution of a Flipped Classroom: Evidence-Based Recommendations", Advances in Engineering Education, 4, (3), pp. n3
  • Huda A. Jerri, Kristin J. Adolfsen, Lauren R. McCullough, Darrell Velegol and Stephanie B Velegol, 2012, "Antimicrobial Sand via Adsorption of Cationic Moringa oleifera Protein", Langmuir, 28, (4), pp. 2262-2268
  • Stephanie B Velegol and Bruce E Logan, 2003, "Macroscopic and nanoscale measurements of the adhesion of bacteria with varying outer layer surface composition", Langmuir, 19, (6), pp. 2366-2371
  • Stephanie B Velegol and Bruce E Logan, 2002, "Contributions of Bacterial Surface Polymers, Electrostatics, and Cell Elasticity to the Shape of AFM Force Curves", Langmuir, 18, (13), pp. 5256ā€“5262
  • Stephanie B Vele andol, , 2000, "Counterion effects on hexadecyltrimethylammonium surfactant adsorption and self-assembly on silica", Langmuir, 16, (6), pp. 2548-2556

Conference Proceedings

  • Stephanie B Vele andol, , 2017, "Middle School Girls as" Experts" to Elementary Students: A Coding Trial (Work in Progress)", ASEE conference proceedings 2017
  • Stephanie B Velegol and Sarah E Zappe, 2016, "How does a flipped classroom impact classroom climate?", ASEE Annual Conference Proceedings 2016
  • Stephanie B Velegol, 2015, "Designing an engineering solution with the 4 Pā€™s: People, Prosperity, Planet, Politics", ASEE Annual Conference Proceedings 2015, ASEE Annual Conference Proceedings, Seattle, Washington
  • Stephanie B Velegol and Kathy Jackson, 2015, "Quiz re-takes: Which students take advantage and how does it affect their performance?", ASEE Annual Conference Proceedings 2015, ASEE Annual Conference Proceedings, Seattle, Washington
  • Stephanie B Velegol, Sarah E Zappe, Mary Lynn Brannon and William D Burgos, 2014, "Online modules enable prerequisite review and mastery during design courses", ASEE Annual Conference Proceedings 2014, ASEE, Indianapolis, IN
  • J. Laman, Stephanie B Velegol and B. Swartz, 2013, "Three Approaches to Flipping CE Courses: Faculty Perspectives and Suggestions", ASEE Annual Conference Proceedings 2013, Proc. ASEE 2003 Annual Conf.

Research Projects

Honors and Awards


Service to Penn State:

Service to External Organizations:

  • Other, Administrator, Girls Who Code, January 2017 - May 2018



The Penn State Department of Chemical Engineering, established in 1948, is recognized as one of the largest and most influential chemical engineering departments in the nation.

The department is built upon the fundamentals of academic integrity, innovation in research, and commitment to the advancement of industry.

Department of Chemical Engineering

121 Chemical and Biomedical Engineering Building

The Pennsylvania State University

University Park, PA 16802

Phone: 814-865-2574