Darrell Velegol

Department of Chemical Engineering

Penn State University

University Park PA 16802, USA

Phone: 814-***-****, email abozyq@r.postjobfree.com, web www.velegol.org

Professional Preparation

West Virginia University BS Chemical Engineering 1988-1992

University of Melbourne (Australia) NSF PhD enhancement (Maths) 1996

Carnegie Mellon University PhD Chemical Engineering 1993-1997

Carnegie Mellon University post-doc (Microscopy & Cell Bio) 1997-1999

Appointments

Professor Penn State University 2009-present

Associate Professor Penn State University 2005-2009

Assistant Professor Penn State University 1999-2005

Summer Design Intern The Chester Engineers 1989

Selected Publications

Hong, Yiying; Velegol, Darrell; Chaturvedi, Neetu; Sen, Ayusman. Biomimetic behavior of

synthetic particles: from microscopic randomness to macroscopic control. Physical

Chemistry Chemical Physics, 12, 1423-1435 (2010). Invited Perspective article.

Chaturvedi, Neetu; Hong, Yiying; Sen, Ayusman; Velegol, Darrell, Magnetic Enhancement of

Phototaxing Catalytic Motors, ASAP article in Langmuir (2010).

Snyder, Charles E.; Ong, Melissa; Velegol, Darrell. In Solution Assembly of Colloidal

Water. Soft Matter, 5, 1263-1268 (2009).

McDermott, Joseph J.; Velegol, Darrell. Simple Fabrication of Metallic Colloidal

Doublets Having Electrical Connectivity. Langmuir, 24, 4335-4339 (2008).

Hong, Yiying; Blackman, Nicole M.K.; Kopp, Nathaniel D.; Velegol, Darrell; Sen, Ayusman.

Chemotaxis of Non-Biological Nanorods. Physical Review Letters, 99, 178103 (p 1-4)

(2007). See Highlight in Nature, 450, 5 (2007).

Velegol, Darrell; Jerri, Huda A.; McDermott, Joseph J.; Chaturvedi, Neetu. Micro-

factories for Colloidal Assemblies, AIChE Journal, accepted 2010. This is an invited

Perspective.

Velegol, Darrell; Shori, Shailesh; Snyder, Charles E. Rayleigh-Benard Instability in

Sedimentation. Industrial & Engineering Chemistry Research, 48, 2414-2421 (2009). Invited

paper to special issue honoring Professor John L. Anderson.

Velegol, Darrell. Assembling colloidal devices by controlling interparticle forces,

Journal of Nanophotonics, 1, 012502 (p 1-25) (2007). Invited review article.

Velegol, Darrell; Holtzer, Gretchen L.; Radovi -Moreno, Aleksandar F.; Cuppett, Joshua D.

Force Measurements between Sub-100 nm Colloidal Particles. Langmuir, 23, 1275-1280 (2007).

Kim, Hye-Young; Sofo, Jorge O.; Velegol, Darrell; Cole, Milton W.; Lucas, Amand A. Van

der Waals forces between dielectric nanoclusters. Langmuir, 23, 1735-1740 (2007).

Honors & Awards

Alpha Chi Sigma Outstanding Professor Award, Penn State University, 2003, 2009

Victor K. LaMer Award, American Chemical Society Colloids & Surfaces Division, June 1998

National Science Foundation PhD Fellow, August 1992 - July 1995

DuPont PhD Fellow, August 1992 - July 1996

Rhodes Scholar Finalist (District II), December 1991

Truman Scholar Alternate, March 1990

West Virginia University Foundation Scholar, August 1988 - May 1992

Professional Affiliations

American Association for the Advancement of Science (AAAS), 1994 present

American Chemical Society (ACS), 1994 present

American Institute of Chemical Engineers (AIChE), 1989 present

American Society for Engineering Education (ASEE), 1999 present

Synergistic Activities

Undergraduate research. Have mentored 44 undergrad students in my research lab (including

7 Habits workshop. Interactive workshop (based on Stephen Covey s best-selling book) that

helps students learn about their life plan, scheduling time, teamwork, and self-

improvement.

molecular and colloids courses. Developed ChE 528 grad course Colloids and

Nanocolloids, taught to dozens of students from various departments; co-developed

developed Chem 497A Physical Chemistry that includes introductory statistical mechanics

and molecular-level migration concepts.

Collaborators & Other Affiliations

Thesis/post-doc advisors. John L. Anderson (President, Illinois Institute Tech), Stephen

Garoff (Physics, CMU), post-doc Frederick Lanni (Biology, CMU)

Outside collaborators (last 5 years). Silvina Gatica (Physics, Howard), Michael J. Pishko

(Chemical Engineering, Texas A&M), Amand Lucas (Belgium).

Current graduate students (6 at Penn State ChE). Huda Jerri (PhD Spring 2010), Joe

McDermott (PhD Fall 2011), Neetu Chaturvedi (PhD Fall 2011), Laura Ramirez (PhD Spring

2012), Cesar Gonzalez Serrano (MS Spring 2011), Tso-Yi Chiang (PhD Spring 2012).

Current post-docs. 1 to start Apr 2010.

Previous graduate students (12). Jason D. Feick (PhD 2002, post-doc 2003, E Ink), Aron

Parekh (PhD 2003, Vanderbilt University Medical School), Michael Salerno (PhD 2005, Camp,

Dresser, & McKee), Gretchen L. Holtzer (PhD 2005, ExxonMobil), Joseph F. Jones (PhD 2005,

Center for Naval Analysis), Mary L. Parent (PhD 2007, Lexmark), Allison Yake (PhD 2007,

DuPont), Charles E. Snyder (PhD 2008, Institute for Defense Analysis), Prasanna K. Thwar

(MS 2001, PhD Michigan, Advanced Liquid Logic), Martin Gentile (MS 2004, Pfizer), Nicole

Blackman (MS 2007, Corning), Shailesh Shori (MS 2008, U South Carolina).

Previous post-docs (5). Jason D. Feick (Chemical Engineering, 2003, now at E Ink), Aron

Parekh (2004, now at Vanderbilt University Medical School), Mercedes Calbi (Physics, joint

with Milton Cole 2002, now at U Southern Illinois), Silvina Gatica (Physics, joint with

Milton Cole 2004, Howard University), Hye-Young Kim (Physics, joint with Milton Cole 2005-

7, Assistant Professor of Physics and Chemistry at Southeastern Louisiana University)

Penn State collaborators (last 5 years). Milton Cole (Physics), Kristen Fichthorn

(Chemical Engineering), Ayusman Sen (Chemistry), Thomas Mallouk (Chemistry), Christine

Keating (Chemistry), Theresa Mayer (Electrical Engineering), Selia Maximova

(Horticulture), Mark Guiltinan (Horticulture).

Research: Fabrication of Colloidal Devices

Our lab group fabricates colloidal assemblies, from roughly 100 nanometers to 10

micrometers in size, for technologies in solar energy, microbots, and reagent delivery.

Our particle lithography and salting out / quenching / fusing techniques are examples

of ways we manipulate forces between the particles, so that the small particles know how

to piece themselves together . The research requires fundamental studies in colloidal

forces, electrokinetic modeling, and instabilities in sedimentation operations. Our lab

group combines experiments (e.g., video microscopy, Nanofabrication, synthesis), numerics

(e.g., Brownian dynamics simulations, eigenmode problems), and theory (e.g.,

hydrodynamics, electrokinetics, quantum physics). Our primary research expertise includes:

colloidal fabrication. By placing site-specific chemistry on individual colloidal

particles using our particle lithography method, we are working toward building

colloidal machines and devices and patterned particles. Significant applications include

reagent delivery, colloidal photovoltaics, and microbots.

interparticle forces. We have developed the coupled dipole method to calculate van der

Waals forces between nanocolloids, to improve upon the Lifshitz theory (which is not

applicable for nanocolloids, for several reasons). Then we use our technique of

differential electrophoresis to measure interparticle forces, for particles as small as

85 nm. The vision is to design nanocolloids that remain stable without dispersants.

sorting. Sedimentation separations by gravity or centrifugation must be done in density

gradients, and even then are subject to a classic Rayleigh-Benard instability. We are

defining the limits of current sedimentation processes, and developing new technologies

that work better.

charge nonuniformity. We have developed the technique of rotational electrophoresis to

measure particle charge nonuniformity for the first time, showing that particles that have

long been thought to be uniformly-charged, are in fact not. This has important

ramifications for colloidal forces stability.

Darrell Velegol attended West Virginia University for his BS in Chemical Engineering, and

he earned his PhD in Chemical Engineering at Carnegie Mellon University in 1997 working

with Professors John L. Anderson and Stephen Garoff. In 1998 Velegol won the Victor K.

LaMer Award of the American Chemical Society for the best PhD in the field of Colloid &

Surface Science. He continued with a post-doc in the Center for Light Microscope Imaging

and Biotechnology at Carnegie Mellon, working under Professor Fred Lanni of the Biology

Department. In June 1999 Velegol joined the Department of Chemical Engineering at Penn

State, where he was promoted to Associate Professor in 2005. Velegol won an NSF CAREER

Award in 2000, and in 2003 he led a group in winning an NSF NIRT grant on bottom-up

particle assembly. Currently he works with 6 graduate students and numerous undergrad

researchers. His research investigates the fabrication of colloidal assemblies and

devices, with a specialty in understanding the interparticle forces and sorting processes.

His research group uses a wide range of experimental and modeling approaches. Velegol is a

member of ACS, AIChE, AAAS, and ASEE. More recently, he has engaged in studying the

physics of community, pursuing questions in learning, creativity, motivation, trust and

deceit, courage, and other social science ideas using results from physics, chemistry,

biology, and chemical engineering. He is applying this research to Wild Scholars, which

aims to have an impact on grades 7-12 education throughout Pennsylvania and beyond. In

2009 Velegol was promoted to Full Professor at Penn State.

Patents

Velegol, Darrell; Feick, Jason D.; Yake, Allison M.; Snyder, Charles. Particle

lithography method and ordered structures prepared thereby. U.S Patent application PST-

14302/36 (2005).

Velegol, Darrell; Yake, Allison M. Particle doublets and n-mers and methods for

fabrication thereof. U.S. Patent application PST-22518 (2006).

Publications (full list)

Velegol, Darrell; Anderson, John L.; Garoff, Stephen. Probing the Structure of Colloidal

Doublets by Electrophoretic Rotation. Langmuir, 12, 675-685 (1996).

Shaeiwitz, Joseph A.; Whiting, Wallace B.; Velegol, Darrell. A Large-Group Senior Design

Experience: Teaching Responsibility and Life-Long Learning. Chemical Engineering

Education, 30, 70-75 (1996).

Velegol, Darrell; Anderson, John L.; Garoff, Stephen. Determining the Forces between

Polystyrene Latex Spheres Using Differential Electrophoresis. Langmuir, 12, 4103-4110

(1996).

Solomentsev, Yuri; Velegol, Darrell; Anderson, John L. Conduction in the Small Gap

between Two Spheres. Physics of Fluids, 9, 1209-1217 (1997).

-24521 (2006).

Velegol, Darrell; Holtzer, Gretchen L.; Radovi -Moreno, Aleksandar F.; Cuppett, Joshua D.

Force Measurements between Sub-100 nm Colloidal Particles. Langmuir, 23, 1275-1280 (2007).

Kim, Hye-Young; Sofo, Jorge O.; Velegol, Darrell; Cole, Milton W.; Lucas, Amand A. Van

der Waals forces between dielectric nanoclusters. Langmuir, 23, 1735-1740 (2007).

Parekh, Aron; Velegol, Darrell. Collagen Gel Anisotropy Measured by 2-D Laser Trap

Microrheometry. Annals of Biomedical Engineering, 35, 1231-1246 (2007).

Yake, Allison M.; Zahr, Alisar S.; Jerri, Huda A.; Pishko, Michael V.; Velegol, Darrell.

Localized Functionalization of Individual Colloidal Carriers for Cell Targeting and

Imaging. Biomacromolecules, 8, 1958-1965 (2007).

Velegol, Darrell. Assembling colloidal devices by controlling interparticle forces,

Journal of Nanophotonics, 1, 012502 (p 1-25) (2007). Invited review article. [DOI:

10.1117/1.2759184].

Yake, Allison M.; Snyder, Charles E.; Velegol, Darrell. Site-Specific Functionalization

on Individual Colloids: Size Control, Stability and Multi-Layers. Langmuir, 23, 9069-9075

(2007).

Hong, Yiying; Blackman, Nicole M.K.; Kopp, Nathaniel D.; Velegol, Darrell; Sen, Ayusman.

Chemotaxis of Non-Biological Nanorods. Physical Review Letters, 99, 178103 (p 1-4)

(2007). See Highlight Nano Steams Ahead in Nature, 450, 5 (2007). "Tiny rods steer

themselves" at http://physicsworld.com/cws/article/news/31730 and

http://nanotechweb.org/cws/article/tech/ 31740;jsessionid=2B7509820E5AA2DBDE155798D3F075BC

(8nov2007); "Nano steams ahead"

http://www.nature.com/nature/journal/v450/n7166/pdf/450005a.pdf.

Velegol, Darrell. Fabrication of high-value particle assemblies, Rubber & Plastic News,

37, 14-15 (26 November 2007). Invited article.

Parent, Mary E.; Snyder, Charles E.; Kopp, Nathaniel; Velegol, Darrell. Localized Quorum

Sensing in Vibrio fischeri. Colloids Surfaces B, 62, 180-187 (2008).

McDermott, Joseph J.; Velegol, Darrell. Simple Fabrication of Metallic Colloidal

Doublets Having Electrical Connectivity. Langmuir, 24, 4335-4339 (2008).

Cole, Milton W.; Velegol, Darrell. Van der Waals Energy of a 1-Dimensional Lattice.

Molecular Physics, 106, 1587-1596 (2008).

Chaturvedi, Neetu; Jerri, Huda; Velegol, Darrell. Design and characterization of

randomly-speckled spheres. Langmuir, 24, 7618 7622 ( 2008).

Jerri, Huda; Dutter, Rachel; Velegol, Darrell. Fabrication of Stable Anisotropic

Microcapsules. Soft Matter, 5, 827-834 (2009).

Snyder, Charles E.; Ong, Melissa; Velegol, Darrell. In Solution Assembly of Colloidal

Water. Soft Matter, 5, 1263-1268 (2009). [DOI: 10.1039/b810882j]

Velegol, Darrell; Shori, Shailesh; Snyder, Charles E. Rayleigh-Benard Instability in

Sedimentation. Industrial & Engineering Chemistry Research, 48, 2414-2421 (2009). [DOI:

10.1021/ie800720k]. Invited paper to special issue honoring Professor John L. Anderson.

Cole, Milton W.; Velegol, Darrell; Kim, Hye-Young; Lucas, Amand A. Nanoscale van der

Waals Interactions, Molecular Simulation, 35, 849-866 (2009). Invited review article.

Nel, Andre E.; Madler, Lutz; Velegol, Darrell; Xia, Tian; Hoek, Eric M.; Somasundaran,

Ponisseril; Klaessig, Fred; Castranova, Vince; Thompson, Mike. Bio-physicochemical

interactions at the nano-bio interface: implications for biological use and safety

assessment of engineered nanoparticles. Nature Materials, 8, 543-557 123 (2009).

Sen, Ayusman; Ibele, Michael; Hong, Yiying; Velegol, Darrell. Chemo and Phototactic

Nano/Microbots, Faraday Discussions, 143, 1-13 (2009).

Hong, Yiying; Velegol, Darrell; Chaturvedi, Neetu; Sen, Ayusman. Biomimetic behavior of

synthetic particles: from microscopic randomness to macroscopic control. Physical

Chemistry Chemical Physics, 12, 1423-1435 (2010). Invited Perspective article.

Jerri, Huda A.; Sheehan, William P.; Snyder, Charles E.; Velegol, Darrell. Prolonging

Density Gradient Stability, ASAP article in Langmuir (2010).

Chaturvedi, Neetu; Hong, Yiying; Sen, Ayusman; Velegol, Darrell, Magnetic Enhancement of

Phototaxing Catalytic Motors, ASAP article in Langmuir (2010).

Ramirez, Laura Mely; Milner, Scott T.; Snyder, Charles E.; Colby, Ralph H.; Velegol,

Darrell. Controlled Flats on Spherical Polymer Colloids, ASAP article in Langmuir

(2010).

Velegol, Darrell; Jerri, Huda A.; McDermott, Joseph J.; Chaturvedi, Neetu. Micro-

factories for Colloidal Assemblies, AIChE Journal, 56, 564-569 (2010). This is an invited

Perspective.

Current grants

Building colloidal assemblies via site-specific bonding regions. National Science

Foundation CBET Grant # 0651611, $240 000 (1 Apr 2007 to 31 Mar 2010). PI: Darrell Velegol

(100%). Velegol = 0.0 month Summer. This grant ends in Mar 2010.

Nanocolloidal forces for stability or assembly. Department of Energy Basic Energy

Sciences Grant # DE-FG02-07ER46414 ($789,366, 15 Aug 2007 14 Aug 2010). PIs: Darrell

Velegol (33%), Milton Cole, Kristen Fichthorn. Velegol = 1.0 month Summer. This grant ends

in Mar 2010.

Colloidal Polymer Chains: Construction, Statics and Dynamics, National Science

Foundation CBET Grant #0730780 (April 2007 to March 2010, $240,000). PI Ralph Colby (50%),

co-PI Darrell Velegol (50%). Velegol = 0.5 month Summer. This grant ends in Mar 2010.

Previous grants completed

Measuring the Effect of Nanoscale Charge Nonuniformity on Colloidal Forces, National

Science Foundation CAREER Grant # CTS-9984443, $234 000 (March 2000 February 2004).

Charge Nonuniformity and the Stability of Particles in Nonaqueous Colloidal

Dispersions, Petroleum Research Fund type G Grant # 35400-G9, $25 000 (September 2000

August 2002).

Molecular Level Analysis of Macromolecule-Surface Interactions in Bacterial Adhesion.

National Science Foundation CRAEMS Program, CH3-0089156, $2,512,000 (September 2000

August 2005). (PIs: Bruce Logan, Darrell Velegol, John Chorover, Menacham Elimelech, James

Kubicki).

Green Engineering of Dispersed Nanoparticles: Measuring and Modeling Nanoparticle

Forces. Environmental Protection Agency STAR Grant # R-82960501, $370 000 (January 2002

December 2004). (PIs: Darrell Velegol and Kristen A. Fichthorn)

Center of Excellence in Nanoparticulate Science and Engineering. to Ben Franklin

Technology Center, $80 000 (1 July 2002 30 Jun 2003) (PIs: James H. Adair, Darrell

Velegol).

Bottom Up Assembly of Metal and Semiconductor Nanowires: Fundamental Forces to

Nanoelectronic Circuits, National Science Foundation NIRT Grant #CCR-0303976, $1 000 000

(15 Aug 2003 31 Jul 2008). (PI: Darrell Velegol, co-PIs: Kristen A. Fichthorn, Theresa

Mayer, Christine D. Keating)

Center of Excellence in Nanoparticulate Science and Engineering. to Ben Franklin

Technology Center, $80 000 (1 July 2003 30 Jun 2004) (PIs: James H. Adair, Darrell

Velegol).

NER: Nanoparticle stability by quantum design of van der Waals forces. National

Science Foundation NER grant CTS-0403646, $130 000 (1 Jul 2004 30 Jun 2005). PIs:

Darrell Velegol and Milton W. Cole.

Center of Excellence in Nanoparticulate Science and Engineering. to Ben Franklin

Technology Center, $80 000 (1 July 2004 30 Jun 2005) (PIs: James H. Adair, Darrell

Velegol).

Site-specific chemistry on colloidal particles by particle lithography . Petroleum

Research Fund Grant # 43453-AC10, $80 000 (September 2005 August 2007).

Atomic-Scale Simulation of Many-Body Forces in Colloidal Nanoparticle Suspensions.

Petroleum Research Fund ($90 000, 1 Sep 2007 to 31 Aug 2009). PI: Kristen A. Fichthorn, co

PIs: Darrell Velegol and Milton Cole.

( 4 Petroleum Research Fund SE (travel) grants, many National Science Foundation Research

Experience for Undergrads grants.

Equipment & Facilities

safety. Fume hoods (including a biological laminar flow hood), water showers, eye wash,

fire extinguisher, lab aprons, standard goggles, laser goggles, gloves.

space. 1500 ft2 lab space.

video microscopy. two microscopes: Nikon TE2000 and Nikon TE 300. Both are inverted

microscopes with various objectives (4x - 100x, including a water immersion objective) and

fluorescence equipment, Prior motorized stages (200 nm resolution), Cohu 4010 CCD camera,

digital image processing software and hardware, Newport vibration isolation tables.

laser trap. 2500 mW NdYag solid state (1064 nm) laser trap. Trap is moveable by scanning

galvanometers.

Wyatt 18 angle static light scattering EOS device.

small angle light scattering. 17 mW laser with full detection, for measuring

interparticle forces and stability.

differential electrophoresis flow cell. Keithley constant current source/measurement

device, peristaltic pump for flow, syringe pump for flow, platinum electrodes.

rheometer. Rheometrics RFS3 controlled strain rheometer.

latex reactor. In-house assembly for manufacturing polymer colloids.

incubators. Floor incubator, Focht stage incubator for microscope, bacterial controlled

temperature shaker

computation. 4 computers, for word processing to numerical calculations.

standard equipment. Millipore water purification, stirring/heating plates, syringe pump,

water baths, electronic balances, Pipetmen, centrifuge, refrigerators, glassware.

UV-vis spectrophotometer.

bacterial growth equipment (autoclave, deep freeze, supplies).

on campus shared user facilities (open access): FESEM, TEM, confocal microscopy, cell

counting, ZetaPALS, Nanofab (electron beam lithography, photolithography.

Invited Presentations

Sorting mixtures of colloidal particles, Illinois Institute of Technology, November

2009.

Chemotaxis of Non-Biological Particles, University of Pennsylvania, October 2009.

Sedimentation separation of colloidal particles, Tulane University, September 2009.

Multi-Body Van Der Waals Forces, American Chemical Society Colloids and Surface Science

Symposium, Columbia University, June 2009.

Sedimentation separation of colloidal particles, Penn State University, April 2009.

7 Steps to Fabricating a Colloidal Machine. 21st International Symposium on Polymer

Analysis and Characterization (ISPAC), University of Delaware, June 2008.

Phototaxis of nonbiological rods. Penn State MRSEC, May 2008.

Colloidal Fabrication Using Site-Specific Interparticle Forces. Gordon Research

Conference on Colloidal, Macromolecular, and Polyelectrolyte Science, Ventura CA, February

2008.

The fabrication of colloidal assemblies. Department of Chemical Engineering, Texas A&M

University, October 2007.

Forces between nanocolloids. California Nanosystems Institute (CNSI) at UCLA, for

workshop on Bio-physicochemical interactions of engineered nanomaterials, September

2007.

The fabrication of colloidal assemblies. Department of Chemical Engineering, University

of Virginia, September 2007.

Designing processes for fabricating colloidal assemblies. Department of Chemical

Engineering, University of Louisville (KY), April 2007.

Designing processes for fabricating colloidal assemblies. Department of Chemical

Engineering, Carnegie Mellon University, April 2007.

Designing processes for fabricating colloidal assemblies. Department of Chemical

Engineering, University of Puerto Rico (Mayaguez), February 2007.

Fabrication of well-controlled particle assemblies. Engineering Science & Mechanics,

Penn State University, October 2006.

Colloidal molecules: fabrication and engineering design. Department of Chemical

Engineering, City College of New York, October 2006.

Patterning on individual colloidal particles using the particle lithography process.

American Chemical Society (PDSM division), San Francisco, September 2006.

Colloidal molecules: fabrication and engineering design. Procter & Gamble, Cincinnati

OH, August 2006.

Colloidal molecules: fabrication and engineering design. American Chemical Society

Colloids and Surface Science Symposium, University of Colorado (Boulder), June 2006.

Colloidal atoms and molecules: design and fabrication. 38th American Chemical Society

Central Regional Meeting, Frankenmuth MI, May 2006.

Nanoscale charge nonuniformity on polymer colloid latexes. Dow Chemical, Midland MI,

May 2006.

Colloidal atoms and molecules: Fabrication and engineering design. World Congress on

Particle Technology (Orlando FL), April 2006.

Colloidal molecules: Synthesis and engineering design. Materials Science Department,

University of New Hampshire, April 2006.

Colloidal molecules : Synthesis and engineering design. Rohm & Haas (Spring House PA),

January 2006.

Measuring charge nonuniformity on colloidal particles. American Institute of Chemical

Engineers Annual Meeting, Cincinnati, November 2005. [Velegol, Paul McKenzie, and John

Walz organized this invited session for John L. Anderson s 60th birthday.]

Colloidal molecules : Synthesis and engineering design. University of Florida

(Gainesville), October 2005.

Nanoscale charge nonuniformity on latex particles. Gordon Conference on Polymer

Colloids, Tilton NH, July 2005.

Processing analysis for colloidal molecules. General Electric Plastics, Mt. Vernon IN,

Jun 2005.

Engineering forces between nanocolloids. American Chemical Society Colloids and Surface

Science Symposium, Clarkson University, June 2005.

A story of colloidal molecules . Food Science Department, Penn State University,

February 2005.

Charge nonuniformity on individual particles: characterization, consequences, and

control. Materials Science Department, University of Illinois (Urbana-Champaign),

November 2003.

Nanoscale charge nonuniformity and its effects on interparticle forces. International

Conference on Surface and Colloid Science (IACIS), Brazil, September 2003.

Changing the World with the 7 Habits. Department of Chemical Engineering, Bucknell

University, January 2003.

Molecular engineering of colloidal forces. Department of Physics, Penn State

University, October 2002.

Measuring and modeling nanoparticle forces. EPA Nanotechnology Grantees Conference,

Environmental Protection Agency, Washington DC (Aug 2002).

Does nanoscale charge nonuniformity control bulk colloidal behavior, Department of

Chemical Engineering, West Virginia University, January 2001.

Does nanoscale charge nonuniformity control bulk colloidal behavior, Department of

Chemical Engineering, University of Colorado, December 2000.

Does nanoscale charge nonuniformity control bulk colloidal behavior, Department of

Chemical Engineering, Johns Hopkins University, October 2000.

Does nanoscale charge nonuniformity control bulk colloidal behavior, Department of

Chemical Engineering, University of Michigan, September 2000.

How Does Charge Nonuniformity on Colloidal Particles Affect Bulk Behavior, Innovations

Workshop, Particulates Materials Center, Penn State University, May 2000.

Particle Dispersion and Rheology in Aqueous Media, Chemicals and Polymers Roundtable,

Air Products and Chemicals Incorporated, April 2000.

How Does Charge Nonuniformity on Colloidal Particles Affect Bulk Behavior, National

Meeting of the American Chemical Society, San Francisco, March 2000.

Determing Cell Traction Forces of Fibroblasts on Collagen Gels, Bioengineering

Department, Penn State University, January 2000.

Understanding Bulk Colloidal Behavior from Interparticle Forces, Department of Chemical

Engineering, Yale University, January 2000.

Surprising Measurements of the Forces between Colloidal Particles, Particulates

Materials Center, Penn State University, June 1999.

Determining Cell Traction Forces of Fibroblasts on Collagen Gels, Department of

Mathematics, University of Melbourne; Chemistry Department, University of Newcastle, March

1999.

Measuring the Colloidal Forces between Two Brownian Particles, Advanced Mineral

Products Center (AMPC), University of Melbourne, March 1999.

Determining the Forces between Colloidal Spheres Using Differential Electrophoresis,

1998 Victor K. La Mer Award Lecture, American Chemical Society Colloids and Surfaces

Science Symposium, The Pennsylvania State University (State College), June 1998.

The Colloidal Forces between Polystyrene Latex Particles in Suspension, Ian Wark

Research Institute, University of South Australia (The Levels, Australia), April 1996.

Determining the Forces between Colloidal Spheres Using Differential Electrophoresis,

Advanced Mineral Products Center (AMPC), University of Melbourne, January 1996.

Determining the Forces between Colloidal Spheres Using Electrophoresis, Condensed

Matter Physics Group (Department of Physics), Carnegie Mellon University, October 1995.

Other conference papers presented by Velegol (many others by students/post-docs)

Sorting Colloidal Particles: Thermodynamics or transport which wins American

Institute of Chemical Engineers Annual Meeting, Nashville, November 2009. (co authors

Cesar Gonzalez Serrano, Joe McDermott, Kristi Weggener, Tawanna Hines)

Fabricating colloidal assemblies that undergo chemotaxis and phototaxis, American

Chemical Society National Meeting, Washington DC, August 2009.

Differences Between 2-Body and Multi-Body Van Der Waals Forces, American Institute of

Chemical Engineers Annual Meeting, Philadelphia, November 2008. (co author Milton Cole)

Rayleigh-Benard Instability in Sedimentation, American Chemical Society Colloids and

Surface Science Symposium, North Carolina State University, June 2008. (with coauthors

Huda Jerri, Charles Snyder, and Shailesh Shori)

Controlling interparticle forces to guide colloidal assembly, National Meeting of the

American Chemical Society, Chicago, March 2007. (presented by Velegol).

Catalytic nanomotor modeling. American Institute of Chemical Engineers Annual Meeting,

San Francisco, November 2006. (coauthors Tim Kline, Paul Lammert, Ayusman Sen, Thomas

Mallouk)

Modeling nanocolloidal van der Waals dispersion forces. American Institute of Chemical

Engineers Annual Meeting, San Francisco, November 2006. (co authors Hye-Young Kim, Jorge

Sofo, Milton Cole, Amand Lucas)

Van der Waals forces between nanocolloids. American Chemical Society Colloids and

Courses taught: ChE 320 (Equilibrium thermodynamics), ChE 350 (Heat Transfer), ChE 407

(Senior Unit Operations Lab), ChE 451 (Process Control), ChE 528 (Colloids and

Nanocolloids), Chem 497A (now Chem 466, Molecular Thermodynamics).

Chem 497A (now Chem 466): Molecular Thermodynamics. This course introduces Chemical

Engineering undergrads to molecular thinking and how atomic and molecular phenomena lead

to macroscopic consequences. Using statistical thermodynamics, lattice models, and other

dynamics equations, the students see how quantum mechanics, Brownian motion, and

transition state theory lead to measurable parameters like heat capacity, conductivity,

diffusion coefficients, and reaction rate constants.

ChE 528: Colloids and Nanocolloids. This course introduces students to essential theory

in colloidal synthesis, hydrodynamics, interparticle forces, stability, rheology,

characterization, and assembly. We use physics ranging from quantum to continuum, and

various chemistry sources.

ChE 497a: Physics of Community. Based on independent study since 1991, unrelated to his

colloids research efforts, Velegol taught this course about designing communities,

learning, motivation, trust, courage, creativity and other human aspects.

ChE 597a: Electrochemical Engineering. This course was co-taught with Mike Janik, and it

is a new course in our department.

Major committee work at Penn State

College of Engineering Sabbatical Leave Committee, 2009-2010

Chemical Engineering Undergraduate Program Coordinator, 2009 present

Schreyer Honors College, Faculty Advisory Committee, 2009 present

Schreyer Honors College, Faculty Selection Committee, 2009-present

College of Engineering Research Symposium, Judge 2009

Penn State Goldwater Selection Committee, January 2009

Faculty Committee for Engaged Scholarship in Philadelphia, 2008 present

College of Engineering Sabbatical Review Committee 2008 (for 2009-2010 sabbaticals)

College of Engineering 5-year Strategic Plan Committee for Health Sciences and Medicine

(2007-2008)

Chemical Engineering ABET Assessment Committee (June 2006 present)

Chemical Engineering Graduate Studies Committee (2005 present)

Chemical Engineering Chaired Professorships Committee (2005 present)

Chemical Engineering Department Head Search Committee (August 2004 2005)

Environmental Education Task Force (November 2003 Dec 2004)

College of Engineering Faculty Council (September 2004 December 2006)

Graduate Studies & Research Sub-Committee (August 2004 December 2006)

Chair of Graduate Studies & Research Committee (August 2005-December 2006)

Environmental Institute Advisory Board (August 2000 present)

Chemical Engineering Faculty Search Committee (August 2000 2001)

Chemical Engineering Grad Recruiting & Admissions, Chair (May 2000 May 2004)

Chemical Engineering Graduate Awards Committee (September 1999 2001)

Penn State organizations

Presidential Leadership Academy Mentor, 2010 present.

Faculty Fellow, Laboratory for Public Scholarship & Democracy, A capacity to sustain,

2008.

Committee for Engaged Scholarship in Philadelphia, 2008 present.

College of Engineering Environmental Institute (Aug 2000 present)

Life Sciences Consortium (May 2000 present)

Particulate Materials Center (Dec 1999 present)

Materials Research Institute (2003 present)

Other service

Urban Sustainability Leadership Academy, Advisory Council (Jan 2010 ).

American Chemical Society Symposium organizer (with Maria Santore), Patchy Particles and

Surfaces, Washington DC, August 2009.

> h yy xE E E-EaE EEE EEEfEgEe i l A BDEGHJKQRTUVWabdeghi

uooooeaUOUOOIEIA.3.3.3.3c c c c c c 3 hcr h r0J mH nH u

hcr 0J hExI ho hExI ho h*i" U hE4O hcw

hcw hcw h-

h-

5 * h*i"5 * hi * h2J hu hoRu(gEeEL SBi + " " = > @ A CDFGIJfghi

uooooooooiiiiiiiieii $ a$ gdo gd*i" gdE4O American Chemical Society LaMer Award

Selection Chair (Jul 2005 Jul 2008)

Organizer, NSF Nanoscale Grantees Conference, 4-6 December 2006 (roughly 200

participants)

Guest Editor, Colloids & Surfaces A, 5 Oct 2005 edition

Editorial Advisory Board of Langmuir (Jan 2005 present)

American Chemical Society LaMer Award Selection Committee (Jul 2001 Jul 2003)

ACS, Continuing Symposium Chair (Colloids & Surface Science), 2000-2008

American Chemical Society Symposium organizer (with Bruce Logan), Bacterial adhesion,

New Orleans, March 2003.

American Chemical Society Symposium organizer (with Kristen A. Fichthorn), Nanocolloid

forces and stability, New York, September 2003.

American Chemical Society Symposium organizer (with Sharon Glotzer and Mike Solomon),

Colloidal atoms and Molecules, Chicago, 24-25 March 2007.

Contact this candidate