Juan Hinestroza
Prof Asst

Web Bio Page

Current Activities

Current Professional Activities

Professor Hinestroza is an active member of The American Chemical Society. Professor Hinestroza has been the organizer for the Cellulose-Based and Other Green Composites Symposium since 2007.   Professor Hinestroza is a member of The Materials Research Society MRS,  The American Institute of Chemical Engineers AIChE,  The Society of Rheology, The Fiber Society  and The Society of Hispanic Professional Engineers SHPE

Current Research Activities

Hinestroza Research Group

Our research group is focused on understanding complex phenomena at the nanoscale that are of fundamental relevance to fiber and polymer science.

Our work on textiles nanotechnology can be categorized into three main thrusts:

1. Modification of existing textile materials using electrostatic self-assembly and atomic layer deposition techniques to create novel and customizable surfaces on conventional textile substrates with emphasis on natural fibers. Our group has deposited polyelectrolytes, inorganic and metallic nanolayers over textile fibers with nanoscale precision opening a new avenue for the development of smart textiles.

2. Creation of novel nanofibers using directed and external fields to control self-assembly phenomena at the nanoscale. We use alternating magnetic fields to achieve precise position control of embedded nanoparticles inside polymeric fibers creating novel nanocomposite materials. In collaboration with our partners at UPRM, our group has developed novel nanofibers having unique magnetic signatures with potential anticounterfeiting and positive identification applications. 

3. Development of metrology tools based on scanning probe microscopy customized to assess nanoscale phenomena on low energy surfaces with high radius of curvature such as those of textile fibers. Our group is pioneering the use of electric force microscopy as a probing tool to quantitatively determine the effect of electrical charge degradation on the filtration performance of electret filter media. We also use a novel Atomic Force Acoustic Microscopy AFAM to probe the mechanical properties of nanofibers.


Biographical Statement

Juan P. Hinestroza is Assistant Professor in the department of Fiber Science and Apparel Design in the College of Human Ecology at Cornell University. Dr. Hinestroza obtained his Ph.D. in Chemical Engineering from Tulane University in May 2002. His doctoral research work was focused on the effect of mechanical deformation on the barrier properties of polymeric materials and was funded by the U.S. Department of Defense and Department of Energy. Prior to graduate school, Dr. Hinestroza was a process control engineer for The Dow Chemical Company.


Research Website:    http://people.cornell.edu/pages/jh433/


Ph.D. in Chemical Engineering from Tulane University in May 2002
B.Sc. in Chemical Engineering from Universidad Industrial de Santander in June 1995

Administrative Responsibilities
Member of the Committee of Academic Status of the College of Human Ecology

Courses, Websites, Pubs

Courses Taught
Fall 2006:  TXA 466 : Textiles Apparel Innovation
Spring 2007: TXA 616 :Rheology of Solids
Fall 2007: FSAD 466: Textiles, Apparel and Innovation
Fall 2007: FSAD 639 : Mechanics of Fibrous Systems

Related Websites

Hinestroza Research Group:   http://people.cornell.edu/pages/jh433/

Wang, D., Sun, G., Chiou, B-S, Hinestroza, J., Controllable Fabrication and Properties of Polypropylene Nanofibers, Polymer Eng. & Sci., 47,11, 1865-1872 (2007)

Bellan, L., Craighead, H., Hinestroza, J., Direct measurement of fluid velocity in an electrospinning jet using particle image velocimetry J. Appl. Phys. 102, 094308 (2007)

Hyde, G. K.; Park, K. J.; Stewart, S. M.; Hinestroza, J. P.; Parsons, G. N., Atomic Layer Deposition of Conformal Inorganic Nanoscale Coatings on Three-Dimensional Natural Fiber Systems: Effect of Surface Topology on Film Growth Characteristics (2007) Langmuir, 23,19, 9844 - 9849

Jasper, W., Moran, A., Hinestroza, J. Barker, R., (2006) Degradation Processes in Corona-Charged Electret Filter-Media with Exposure to Ethyl Benzene. Journal of Engineered Fibers and Fabrics, 2,4, 19-24

Hyde, K. Dong, H., Hinestroza, J. Effect of surface cationization on the conformal deposition of polyelectrolytes over cotton fibers, (2007), Cellulose, 14, 6, 615-623

Kim, J., Jasper, W., Hinestroza, J. (2007) Probing Solvent-Induced Charge Degradation in Electret Fibers via Electrostatic Force Microscopy, Journal of Microscopy,20,1-8

Kim, J., Jasper, W. Hinestroza, J. (2006) Charge Characterization Of An Electrically Charged Fiber Via Electrostatic Force Microscopy. Journal of Engineered Fibers and Fabrics, 1,2, 30-46

Jasper, W., Hinestroza, J., Mohan, A., Kim, J.*, Shiels, B.*, Gunay, M., Thompson, D., Barker, R. (2006) Effect of xylene exposure on the performance of electret filter media. Journal of Aerosol science, 47, 7, 903-911

Chapter in Book: De Kee, D., Hinestroza, J., Liu, Q. (2005). Non-Fickian diffusion in systems with complex interfaces. In P. Chen (Ed.), Molecular interfacial phenomena of polymers and biopolymers. (pp. 23-36). Abington Hall, Abington, Cambridge, CB1 6AH, England : Woodhead Publishing Limited.

Hyde, K., Rusa, M., Hinestroza, J. (2005). Layer-by-layer deposition of polyelectrolyte nanolayers on natural fibres: cotton. Nanotechnology , 16 ,S422-S427.

Hinestroza, J., De Kee, D. (2004). Barrier properties of LLDPE geomembranes under mechanical deformation. Journal of Environmental Engineering , 12 (130) ,1468.

Puri, P. Hinestroza, J. De Kee, D. (2005). Transport of Small Molecules Through Mechanically Elongated Polymeric Membranes. Journal of Applied Polymer Science , 96 ,1200-1203.

Qian, L., & Hinestroza, J. (2004). Nanotechnology in Textiles - Current Developments and Future Trends. Latin American Congress of Textile Chemistry 

Qian, L., & Hinestroza, J. (2004). Application of Nanotechnology for high performance textiles. Journal of Textile and Apparel, Technology and Management , 4 (4) 

Hinestroza, J., & De Kee, D., & Puri, P. (2004). Modeling the Transport of Organic Solvents through Protective Clothing. International Simulation Conference , TX1 ,49-52.

Barnhardt, R.,Hinestroza, J., Joines, J. (2003). Control Systems at ITMA 2003. Journal of Textile and Apparel, Technology and Management , 3 

Hinestroza, J., & Papadopoulos, K. (2003). Using Spreadsheets and Visual Basic Applications as Teaching Aids for a Unit Operations Course. Chemical Engineering Education , 37 (4) 

Hinestroza, J., & De Kee, D., & Pintauro, P. (2001). Apparatus for studying the effect of mechanical deformation on the permeation of organics through polymeric films. Industrial & Engineering Chemistry Research , 40 

Lambert, C., & Vincent, M., & Hinestroza, J., & Gonzales, R. (2000). Activity and selectivity of a Pd/g-Al2O3 catalytic membrane in the partial hydrogenation of acetylene. Studies in Surface Science and Catalysis , 130C 

De Kee, D., & Cham Man Fong, C.F., & Pintauro, P., & Hinestroza, J. (2000). Effect of temperature and elongation on the liquid diffusion and permeation characteristi