People & Expertise

RTNN Directors

jacob-jonesJacob Jones
RTNN Director & NC State Site Director
Department of Materials Science & Engineering
North Carolina State University
Nan Jokerst
Duke Site Director
Department of Electrical and Computer Engineering
Duke University
Jim Cahoonjames-cahoon
UNC Site Director
Department of Chemistry
University of North Carolina at Chapel Hill
david-berubeDavid Berube
SEIN Coordinator
Department of Communication
North Carolina State University

Executive Committee

External Advisory Board

  • Bob Therrien (Phononic)
  • Joe Campbell (University of Virginia)
  • Lynn Davis (Research Triangle Institute – RTI)
  • John Hardin (NC Dept of Commerce)
  • Caesar Jackson (NC Central University)
  • Joe Magno (Small Business Consultant)
  • Alisha Malloy (NC Central University)
  • Veena Misra (Director of NSF ERC ASSIST, NC State)
  • John Prater (Army Research Office)
  • Kathy Zarilla (Durham Technical Community College)

RTNN Staff

Phil Barletta, Technical Staff (
Phil serves as Director of Operations for NNF. Prior to joining NC State, Dr. Barletta worked for close to a decade at RTI International. During his career, Dr. Barletta has studied bulk thermoelectrics, photovoltaics, long-wavelength IR detection, and solid-state lighting. His diverse research background includes publications regarding thermoelectrics, III-V material growth, and diamond-like carbon. He holds his PhD in Materials Science.

cuchiara-maudeMaude Cuchiara, RTNN Associate Director (
Maude manages the RTNN and serves in a variety of roles to ensure RTNN’s success. She facilitates all client interactions with RTNN as well as communicates RTNN news, information, and events to relevant stakeholders. In addition, she coordinates the educational arm of RTNN by planning and implementing workshops, conferences, and outreach activities. She holds her Ph.D. in Bioengineering.
donley-carrieCarrie Donley, Technical Staff (
A research associate at CHANL, Carrie trains new users on a variety of tools including XPS, XRD, and AFM, advises users on sample characterization, and helps to organize workshops and outreach events.  Dr. Donley holds her Ph.D. in Chemistry and has worked in both academic and industry settings.
geil-bobBob Geil, Technical Staff (
As director of CHANL, Bob oversees all CHANL activities, trains new users on fabrication related equipment in CHANL, advises users on fabrication strategies to achieve their device goals, and helps to organize workshops and outreach events.  Dr. Geil holds his Ph.D. in Chemical Engineering.
Khara Grieger, SEIN (
Khara Grieger is a Senior Research Scholar in the Genetic Engineering and Society Center. She works on a range of projects related to responsible innovation of emerging technologies, including nanomaterials. She is the PI of a USDA/NIFA grant focused on understanding the societal implications and stakeholder perceptions of nanomaterials in the farm to fork continuum, PI on a Society for Risk Analysis-funded initiative to grow the field of risk science, a Co-PI on a collaborative research project focused on sustainable development of nanomaterials used in water treatment technologies, Co-Lead for a EU-US research consortium on Risk Management and Control, and an advisory board member for a large European project focused on nanomaterial risk governance. She completed her PhD and Postdoctoral training at the Technical University of Denmark, in the Department of Environmental Engineering. She also has a MSc from DTU in Environmental Engineering, a MS in Plant Biology and Ecology, and BS in Zoology from Michigan State University.
Holly Leddy, Technical Staff ( HollyLeddy
R&D and Outreach Engineer for SMIF, Holly trains new users on AFM, Raman, and SEM equipment in SMIF.  She advises users on biomedical related projects and manages and implements educational and outreach activities.  Dr. Leddy has a PhD in Biomedical Engineering and worked as a researcher studying mechanobiology and arthritis at Duke University Medical Center prior to joining SMIF in 2016.
Michelle Gignac Plue, Technical Staff (
Team Leader of Characterization and Imaging for SMIF, Michelle trains new users on SEM and TEM equipment in SMIF.  She advises users on electron microscopy and sample preparation strategies.  Ms. Plue holds a MS degree in Biomedical Science and was previously employed by the National Cancer Institute before joining Duke University in 2007.
strader-phillipPhillip Strader, Project Scientist (
Phillip coordinates and facilitates research and development through the RTNN utilizing the shared capabilities at the College of Textiles at N.C. State. Mr. Strader holds a M.S. in Textiles and served as a research assistant at the Nonwovens Institute prior to joining RTNN in 2016.
Ttyler-talmagealmage Tyler, Technical Staff (
Team Leader of Cleanroom Fabrication for SMIF, Talmage advises users on fabrication strategies to achieve their goals, and provides training and consultation on Electron Beam Lithography and Photolithography.  Dr. Tyler holds a PhD in Materials Science and led research programs at a small company prior to joining Duke University in 2008.
Mark Walters, Technical Staff (
The Director of SMIF, Mark manages the operations, administration and finances of SMIF. He trains new users on the XPS and XRD, and advises users on nano/micro fabrication and imaging and characterization of samples.  Dr. Walters holds a PhD in Materials Science and has over 30 years experience in cleanroom fabrication and materials characterization in both industry and academia.
Jun YanJun Yan, Technical Staff (
A staff member at CHANL, Jun trains new users on fabrication related equipment in CHANL, advises users on fabrication strategies to achieve their device goals, and helps to organize workshops and outreach events. Dr. Yan holds his PhD in Chemical Engineering.

For information on our Peer-to-Peer Networking Program, please contact directly.

Principal Faculty Experts

Over 100 faculty members from the 3 partner universities support the development of new processes, tools, and instrumentation within the RTNN community. Our faculty affiliates have deep expertise across a broad array of topics in the following 6 emerging areas of nanotechnology research.

  • Interfaces, Metamaterials, Fluidics, and Heterogeneous Integration
  • Nanomaterials for Biology and Environmental Assessment
  • Organic and Inorganic 1-D and 2-D Nanomaterials
  • Textile Nanoscience and Flexible Integrated Systems
  • Nanomaterials Simulation and Modeling
  • Social, Ethical, and Environmental Implications of Nanotechnology

 RTNN Partners

The RTNN has developed strategic partnerships with the following entities in order to develop innovative programming and expand the breadth and reach of our technical capabilities: