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Stevens Institute of Technology

Who We Are

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Philip L. Leopold
Philip L. Leopold
Clinical Professor; Program Director of Biology
Location:112 McLean
BIO 281
BIO 484
CH 662
CH 781
CH 693
BIO 485
School:  Schaefer School of Engineering & Science
Department:  Biomedical Engineering, Chemistry and Biological Sciences
Program:  Chemistry & Chemical Biology / Biology
Research & Education

Georgetown University, B.S Biology 1987

University of Texas Southwestern Medical Center, Ph.D. Neuroscience, 1993

Columbia University College of Physicians and Surgeons, Aaron Diamond Post-Doctoral Fellow, 1993-1996



Intracellular trafficking of viruses

Gene therapy

Genetic diseases

Visit the Leopold Laboratory


Experience & Service
Institutional Service
  • Faculty Mentor, Stevens Men's Soccer Team
  • Member, Student Faculty Alliance
  • Member, Institutional Biosafety Committee
  • Member, SES Curriculum Committee

Stevens Institute of Technology

  • Clinical Professor, Biology Program Director 2014-present
  • Affiliate Member, Center for Innovation in Engineering and Science Education, 2012-present
  • Professor and Director, Department of Chemistry, Chemical Biology, & Biomedical Engineering, 2008 - 2014

Weill Cornell Medical College, New York, NY

  • Assistant Professor of Biochemistry in Medicine, 1996-2004
  • Assistant Professor of Genetic Medicine, 2000-2004
  • Associate Professor of Genetic Medicine, 2004-2008
  • Associate Professor of Biochemistry in Medicine, 2004-2008


Innovation and Entrepreneurship
  • Mentor, Technogenesis Scholars
Achievements & Professional Societies
Honors & Awards

Georgetown University Biology Medal, 1987

Weill Medical College Excellence in Teaching Award, 2002

Weill Medical College Charles L. Bardes Teaching Prize, 2005

Edwin "Doc" Farrell Award (Stevens Institute of Technology), 2011-2 

Davis Memorial Award for Research Excellence, 2015


Grants, Contracts & Funds

"Rigid cationic carotenoid lipids as novel miRNA delivery vectors." Collaboration with Prof. Michael Pungente, Weill Cornell Medical College - Qatar, Doha, Qatar, and Profs. Vassilia Partali and Richard Sliwka, Norwegian University of Science and Technology, Trondheim, Norway. Funding agency: Qatar National Research Foundation.

"Math Science Partnership Proposal 2010: Curriculum Topic Study to Enhance Achievement in Mathematics and Science (C-TEAMS)." Collaboration with Mercedes McKay, Stevens Center for Innovation in Engineering and Science Education. Funding agency: US Department of Education/New Jersey Department of Education.

"Pfizer Undergraduate Research Endeavors: Research Funding for the Technogenesis Scholarship Program." Funding agency: Independent College Fund of New Jersey/Pfizer Foundation.

"Pfizer Undergraduate Research Endeavors: A Pilot Research Spine to Extend Experiential Learning Throughout the Science Curriculum." Funding agency: Independent College Fund of New Jersey/Pfizer Foundation.  


Patents & Inventions
Crystal RG, Sato N, Leopold PL. Method of modulating hair growth. United States Patent #6,159,950. 
Professional Societies

New York Society of Experimental Microscopists, President, 2001-2003

Harvey Society, 2003-present 

American Society for Gene Therapy, Education Committee Chair, 2006-2008; Member, Chemical Gene Transfer Committee, American Society of Gene and Cell Therapy, 2012-present

Selected Publications

  • Jubeli E, Raju L, Khalique NA, Bilchuk N, Zegel C, Chen A, Lou HH, ěpstad CL, Zeeshan M, Sliwka HR, Partali V, Leopold PL, Pungente MD. (2015). "Polyene-based cationic lipids as visually traceable siRNA transfer reagents", European Journal of Pharmaceutics and Biopharmaceutics, 89 280-289.

  • Jia C, Yu D, Teng YD, Lamarre M, Leopold PL, Wang H.. (2014). "Patterned electrospun nanofiber matrices via localized dissolution: Potential for guided tissue formation", Advanced Materials,  DOI: 10.1002/adma.201403509  .

  • ěpstad CL, Zeeshan M, Sliwka H-R, Partali V, Surve C, Izower MA, Bilchuk N, Lou H, Larsen H, Nicholson D, Liberska A, Khalique NA, Raju L, Flinterman M, Jubeli E, Leopold PL, Pungente MD. (2014). "Synthesis and characterization of highly unsaturated, C30- and C20- carotenoid-based cationic phospholipids as DNA transfer reagents", Chemistry and Physics of Lipids, 183: 117-136.

  • ěpstad CL, Sliwka HR, Partali V, Elgsaeter A , Leopold PL, Jubeli E, Khalique NA, Rajud L, Pungente MD. (2013). "Synthesis of a novel highly unsaturated, conjugated cationic phospholipid. ", Chemistry and Physics of Lipids, 170-171: 65-73.

  • Leopold PL, Vincent J, Wang H. (2012). "A comparison of epithelial-to-mesenchymal transition and re-epithelialization. ", Seminars in Cancer Biology, 22: 471-483.

  • Pungente MD, Jubeli E, ěpstad C, Al-kawaz M, Barakat N, Ibrahim T, Khalique NA, Jones R, Leopold PL, Sliwka HR, Partali V. (2012). "Synthesis and preliminary investigations towards the siRNA delivery potential of novel, single-chain rigid cationic carotenoid lipids. ", Molecules, 17 3484-3500.

  • Leopold PL,* OĺMahony MJ,* Lian XJ,* Harvey BG, Crystal RG. (2009). "Smoking is associated with shortened airway cilia ", PLoS ONE, [* - these authors contributed equally to the work]. 4 (12), e8157.

  • Vincent T, Neve EPA, Johnson JR, Kukalev A, Rojo F, Albanell J, Pietras K, Virtanen I, Philipson L, Leopold PL, Crystal RG, de Herreros AG, Moustakas A, Pettersson RF, Fuxe J.. (2009). "A Snail-Smad transcriptional repressor complex promotes TGF-β-mediated epithelial-mesenchymal transition ", Nature Cell Biology, 11 943-950.

  • Berth SB, Leopold PL, Morfini G.. (2009). "Virus-induced neuronal dysfunction and degeneration. ", Frontiers in Bioscience, 14 5239-5259.

  • Kiuru M, Hidaka C, Hubner R-H, Krause A, Leopold PL, Crystal RG.. (2009). "Transient systemic overexpression of Sonic hedgehog mediates expansion of diaphyseal trabecular bone with associated amplification of the hematopoietic stem cell niche.", Molecular Therapy, 17 1442-1452.

  • Hubner R-H, Kiuru M, Krause A, Leopold PL, Crystal RG.. (2009). "Dysfunction in glycogen storage with metabolic consequences in a mouse model of Alpha 1-Antitrypsin Deficiency", Am. J. Resp. Cell Molec. Biol., 40 239-247.

  • Saitoh H, Leopold PL, Harvey B-G, O'Connor TP, Worgall S, Hackett NR, Crystal RG. (2009). "Emphysema Mediated by Lung Overexpression of ADAM10", Clin Transl Sci, 2 50-56.

  • Song Y, Lou HH, Boyer JL, Limberis MP, Vandenberghe LH, Hackett NR, Leopold PL, Wilson JM, Crystal RG. (2009). "Functional cystic fibrosis transmembrane conductance regulator expression in cystic fibrosis airway epithelial cells by AAV6.2-mediated segmental trans-splicing", Hum Gene Ther, 20 267-281.

  • Leopold PL, Crystal RG. (2007). "Intracellular trafficking of adenovirus: Many means to many ends", Advanced Drug Delivery Reviews, 59 810-821.

  • Leopold PL, Wendland R, Vincent T, Crystal RG. (2006). "Neutralized adenovirus-immune complexes can mediate effective gene transfer via a Fc receptor-dependent infection pathway", Journal of Virology, 80 10237-10247.

  • Leopold PL, Pfister KK. (2006). "Viral strategies for intracellular trafficking: motors and microtubules", Traffic, 7 516-523.

  • Kelkar S, De B, Gao G, Wilson JM, Crystal RG, Leopold PL. (2006). "A common mechanism for cytoplasmic dynein-dependent microtubule binding shared among adeno-associated virus and adenovirus serotypes", Journal of Virology, 80 7781-7785.

  • Lou H, Crystal RG, Leopold PL. (2005). "Enhanced in vivo efficacy of cholesterol-minus Sonic hedgehog", Molecular Therapy, 12 575-578.

  • Book Chapters

  • Leopold PL. (2015). "Chapter 17: Endosomal Escape Pathways for Delivery of Biologics", Lysosomes, basic mechanisms and roles in disease and drug development, Maxfield FR, Willard JM, and Yu S, John Wiley & Sons, Inc., Hoboken, NJ. (in press).

  • Leopold PL. (2007). "Chapter 34: Microtubule-dependent motility during intracellular trafficking of vector genome to the nucleus: Subcellular mimicry in virology and nanoengineering", Nanotechnology in Biology and Medicine, T. Vo-Dinh, Taylor and Francis, Inc./CRC Press Inc., London.


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