- Pat Spicer


Particle and droplet shape effects and design
Soft matter interactions with biological surfaces
Microfluidics and microrheology of structured fluids
Surfactant self-assembly
Soft nanoparticles: cubosomes, coacervates, and microemulsions
Population balance modeling


Dec 2013 Engineering Shaped and Stimulus-Responsive Droplets for Pharmaceutical Applications Triggered Delivery 2013
Nov 2013 Colloidal microstructure effects on sedimentation in yield stress fluids AIChE 2013
Oct 2013 Engineering Shaped and Stimulus-Responsive Droplets for Pharmaceutical Applications Drug Delivery Australia 2013
Sep 2013 A Career in Particle Technology (and the Definition of a Particle) Australasian Particle Technology Society
May 2013 Stimulus-Responsive Endoskeleton Droplets NSTI 2013
May 2013 Soft Nanostructures and Shape Effects in Foods US FDA
May 2013 Stimulus-Responsive Endoskeleton Droplets as an Argument for Fundamental Research U. Delaware
Mar 2013 Stimulus-Responsive Endoskeleton Droplets U. Sydney
Feb 2013 Stimulus-Responsive Endoskeleton Droplets ACIS 2013
Oct 2012 What Makes a Flow Interesting to Industrial and Academic Researchers? AIChE Annual Mtg
Oct 2012 Droplet Deposition from Consumer Products AIChE Annual Mtg
Sep 2012 Droplet Deposition From Consumer and Medical Products U Pitt
Jul 2012 Arrested coalescence of viscoelastic drops Faraday Discussion 158: Soft Matter Approaches to Food
Jun 2012 Enhanced deposition via new particle development and characterization World Polymer Congress
Jun 2012 Design of Droplet Structure and Shape for Enhanced Delivery New England Complex Fluids Workshop
Jun 2012 Exploiting Droplet Shape to Enhance Colloidal Material Adhesion and Delivery Nanotech 2012
May 2012 Design of Droplet Structure and Shape for Enhanced Delivery Texas Tech
Mar 2012 Ice cream, Skin cream, and Colloidal Materials U. New South Wales
Jan 2012 Design of Droplet Structure and Shape: Not just for Colloidal Solids Anymore! CSIRO Melbourne
Sep 2011 Colloidal Particle Design: Now that we can have anything we want, what do we want?: U. Penn
Sep 2011 Colloidal Particle Design and Prototyping: How do we test and model at the single-particle scale? NIST
Jun 2011 Arrested coalescence dynamics in Pickering emulsions: ACS Colloids Meeting
Jun 2011 Arrested coalescence of droplets with adsorbed colloids: Nanotech 2011 Conference
Feb 2011 Arrested Coalescence due to adsorbed colloids in emulsions: 2011 Australian Colloids and Interface Symposium
Jan 2011 Emulsion microstructure, Rheology, and Coalescence Behavior Lehigh U.
Oct 2010 Microrheology short course: 2010 Society of Rheology Annual Meeting
Feb 2010 Designing complex fluid microstructure: Gordon Conference - Colloidal, Macromolecular & Polyelectrolyte Solutions
Jan 2010 Rheology and structural variations in surfactant phases: Beyond Self-Assembly Workshop
Nov 2009 Vibrational effects on particle sedimentation in complex fluids: AIChE Annual Meeting 2009
Oct 2009 Vibrational sedimentation in yield stress fluids: Society of Rheology Annual Meeting 2009
Oct 2009 Soft Matter Physics: surfactants: Georgetown University
July 2009 Heterogeneous complex fluids aren't all bad: Association in Solution II
Oct 2008 Microstructural heterogeneity and large-scale soft matter manufacturing: Mid-Atlantic Soft Matter Workshop
Aug 2008 Mixing, microrheology, and microstructural heterogeneity: ISMIP6
Aug 2008 Surfactant rheology short course: ICR2008
May 2008 Sustainable complex fluid processing: Cornell Center for Materials Research
Feb 2008 Perspectives on liquid heterogeneity: Frontiers of Microrheology


2014 A brief Introduction to Soft Matter
2005 Detergency movies on CD included with Gouttes, bulles, perles et ondes


2005 Bicontinuous liquid crystals


Corona, A., Frankenbach, G., Lindberg, S., Sivik, M., Spicer, P., Waning, G., Fabric care compositions comprising a poly(diallyldimethylammonium chloride-co-acrylic acid), process of making, and method of use, USA, 8,372,795 B2, 2013, 10 pp. pdf

Lynch, M., Spicer, P., Cubic Liquid Crystalline Phase Precursor, European Patent EP 1373433 B1, 2008, 20 pp. pdf

Spicer, P., Small, W., Lynch, M., Cubic Liquid Crystalline Compositions and Methods for Their Preparation, USA, 7,008,646, 2006, 17 pp. pdf

Lynch, M., Spicer, P., Functionalized Cubic Liquid Crystalline Phase Materials and Methods for Their Preparation and Use, USA, 6,936,187, 2005, 17 pp. pdf

Lynch, M., Spicer, P., Cubic Liquid Crystalline Compositions and Methods for Their Preparation, USA, 6,773,627, 2004, 30 pp. pdf

Lynch, M., Spicer, P., Functionalized Cubic Liquid Crystalline Phase Materials and Methods for Their Preparation and Use, USA, 6,656,385, 2003, 14 pp. pdf


Caggioni, M., Bayles, A., Lenis, J., Furst, E., and Spicer, P., "Interfacial Stability and Shape Change of Anisotropic Endoskeleton Droplets," Soft Matter 10, 38, 7647-7652 (2014). pdf

Tangso, K., Lindberg, S., Hartley, P., Knott, R., Spicer, P., and Boyd, B., "Formation of liquid crystalline structures in the bile salt-chitosan system and triggered release from lamellar phase bile salt-chitosan capsules," ACS Appl. Matls. & Interfaces 6, 15, 12363-12371 (2014). pdf

Emady, H. N., Caggioni, M., and Spicer, P., "Colloidal microstructure effects on particle sedimentation in yield stress fluids," J. Rheology, 57, 1761 (2013). pdf AIP abstract

Pawar, A., Caggioni, M., Hartel, R., and Spicer, P., "Arrested coalescence of viscoelastic droplets with internal microstructure," Faraday Discussions, 158, 341-350 (2012). pdf

Porter, D., Savage, J. R., Cohen, I., Spicer, P., and Caggioni, M., "Temperature dependence of droplet breakup in 8CB and 5CB liquid crystals," Physical Review E, 85, 041701 (2012). pdf

Pawar, A., Caggioni, M., Ergun, R., Hartel, R., Spicer, P., "Arrested Coalescence in Pickering Emulsions," Soft Matter, 7, 7710-7716 (2011). pdf

Solomon, M. and Spicer, P., "Microstructural Regimes of Colloidal Rod Suspensions, Gels, and Glasses," Soft Matter, 6, 1391-1400 (2010) pdf Figure 1 Figure 4

Savage, J., Caggioni, M., Spicer, P., Cohen, I., "Partial Universality: Pinch-Off Dynamics in Fluids with Smectic Liquid Crystalline Order.," Soft Matter, 6, 892-895 (2010). pdf

Wilkins, G., Spicer, P., Solomon, M., "Colloidal System to Explore Structural and Dynamical Transitions in Rod Networks, Gels, and Glasses," Langmuir, 25, 8951–59 (2009). pdf

Savin, T., Spicer, P., Doyle, P. S., "A Rational Approach to Noise Discrimination in Video Microscopy Particle Tracking," Appl. Phys. Lett., 93, 024102 (2008). pdf

Shen, A. Q., Wang, D., Spicer, P., "Kinetics of Colloidal Templating Using Emulsion Drop Consolidation," Langmuir, 23, 12821-26 (2007). pdf

Caggioni, M., Spicer, P., Blair, D., Lindberg, S., Weitz, D., "Rheology and Microrheology of a Microstructured Fluid: The Gellan Gum Case," J. Rheology, 55, 851-65 (2007). pdf

Steinhaus, B., Spicer, P., Shen, A., "Droplet Size Effects on Film Drainage between Droplet and Substrate," Langmuir, 22, 5308-13 (2006). pdf

Spicer, P., Hartel, R., "Crystal Comets: Dewetting During Emulsion Droplet Crystallization," Aust. J. Chem., 58, 655-59 (2005). pdf

Spicer, P., "Cubosome Processing: Industrial Nanoparticle Technology Development," Chem. Eng. Res. Des., 83, 1283-86 (2005). pdf

Spicer, P., "Progress in Liquid Crystalline Dispersions: Cubosomes," Curr. Opin. Colloid Int. Sci., 10, 274-79 (2005). pdf

Spicer, P., "Cubosomes: Bicontinuous Cubic Liquid Crystalline Nanostructured Particles," in J.A. Schwarz, C. Contescu, K. Putyera (Eds.), Marcel Dekker Encyclopedia of Nanoscience and Nanotechnology Marcel Dekker, New York, 2003, p. 881-92. pdf

Spicer, P., Lynch, M., Visscher, M., Hoath, S., "Bicontinuous Cubic Liquid Crystalline Phase and Cubosome Personal Care Delivery Systems," in M. Rosen (Ed.), Personal Care Delivery Systems and Formulations. Noyes Publishing, 2003. pdf

Spicer, P., "Cubosome Formation via Dilution - Kinetic Effects and Consumer Product Implications," in F. Case, P. Alexandridis (Eds.), Mesoscale Phenomena in Liquid Systems. ACS, 2003, p. 346-59. pdf

Lynch, M., Ofori-Boateng, A., Hippe, A., Kochvar, K., Spicer, P., "Enhanced Loading of Water-Soluble Actives into Bicontinuous Cubic Phase Liquid Crystals Using Cationic Surfactants," J. Colloid Interface Sci., 260, 404–13 (2003). pdf

Spicer, P., Small, W. B., Lynch, M. L., Burns, J. L., "Dry Powder Precursors of 'Soft' Cubic Liquid Crystalline Nanoparticles (Cubosomes)," J. Nanopart. Res., 4, 297-311 (2002). pdf

Spicer, P., Chaoul, O., Tsantilis, S., Pratsinis, S. E., "Titania Formation by TiCl4 Gas Phase Oxidation, Surface Growth and Coagulation," J. Aerosol Sci., 33, 17-34 (2002). pdf

Spicer, P., Hayden, K., Lynch, M., Ofori-Boateng, A., Burns, J., "Novel Process for Producing Cubic Liquid Crystalline Nanoparticles (Cubosomes)," Langmuir, 17, 5748-56 (2001). pdf

Flesch, J. C., Spicer, P., Pratsinis, S. E., "Laminar and Turbulent Shear-Induced Flocculation of Fractal Aggregates," AIChE J., 45, 1114-24 (1999). pdf

Spicer, P., Pratsinis, S., Willemse, A., Merkus, H., Scarlett, B., "Monitoring the Dynamics of Concentrated Suspensions by Enhanced Backward Light Scattering," Part. Part. Syst. Charact., 16, 201-06 (1999). pdf

Spicer, P., Artelt, C., Sanders, S., Pratsinis, S., "Flame Synthesis of Composite Carbon Black-Fumed Silica Nanostructured Particles," J. Aerosol Sci., 29, 647-59 (1998). pdf

Pratsinis, S., Spicer, P., "Competition between Gas Phase and Surface Oxidation of TiCl4 During Synthesis of Tio2 Particles," Chem. Eng. Sci., 53, 1861-68 (1998). pdf

Spicer, P., Pratsinis, S. E., Raper, J., Amal, R., Bushell, G., Meesters, G., "Effect of Shear Schedule on Particle Size, Density, and Structure During Flocculation in Stirred Tanks," Powder Tech., 97, 26-34 (1998). pdf

Shear-Induced Aggregation-Fragmentation: Mixing and Aggregate Morphology Effects, Ph.D. Thesis (1997). pdf

Spicer, P., Keller, W., Pratsinis, S., "The Effect of Impeller Type on Floc Size and Structure During Shear-Induced Flocculation," J. Colloid Interface Sci., 184, 112-22 (1996). pdf

Spicer, P., Pratsinis, S., Trennepohl, M., Meesters, G., "Coagulation and Fragmentation: The Variation of Shear Rate and the Time Lag for Attainment of Steady State," Ind. Eng. Chem. Res., 35, 3074-80 (1996). pdf

Spicer, P., Pratsinis, S., "Coagulation and Fragmentation: Universal Steady-State Particle-Size Distribution," AIChE J., 42, 1612-20 (1996). pdf

Spicer, P., Pratsinis, S., "Shear-Induced Flocculation: The Evolution of Floc Structure and the Shape of the Size Distribution at Steady State," Water Res., 30, 1049-56 (1996). pdf

Pat Spicer received a BS in Chemical Engineering from the University of Delaware in 1992. In 1997 he completed a PhD in Chemical Engineering with the Particle Technology Group at the University of Cincinnati where his research focused on design and synthesis of colloidal and nanoparticle materials. After defending his thesis he went to work for the Procter & Gamble Company, leading their Crystallization group in the Corporate Engineering Division and supporting the scale-up and manufacture of complex fluid products for all of P&G's product areas.

Recognizing the importance of fluid microstructures to product and process quality, in 2006 Pat formed P&G's Microfluidics and Structured Fluids group, responsible for development, characterization, scale-up, and modeling of microstructured fluids and processes. Utilizing broad capability in microscopy, microfluidics, and microrheology, the Mu Crew made significant contributions to all of P&G's liquid billion dollar brands and collaborated with many of the leading academic groups focused on soft materials and complex fluids.

After 15 years with P&G, Pat began work as an Associate Professor of Chemical Engineering at the University of New South Wales in Sydney, Australia. There his research focuses on the design and development of microstructured fluid materials by understanding their kinetic behavior. His areas of focus in the field include the understanding of particle shape effects on materials performance, interactions of soft matter with biological systems, and scale-up of soft matter manufacturing processes when attributes other than composition control product quality.

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Contact: ptspicer at gmail dot com

Don't ignore your dreams; don't work too much; say what you think; cultivate friendships; be happy. (Paul Graham)