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Contact Information

Email: Click to Mail

Phone: (805) 893-3673

Fax: (805) 893-4731

Office Location: 3327 Engineering II

Address: Chemical Engineering Dept.
Mail Code 5080
University of California
Santa Barbara, CA 93106-5080 USA

Lab Phone: 893-7728 & 893-7730

Assistant Information

Name: Allie Olympius

Email: Click to Mail

Phone: (805) 893-2214

Fax: (805) 893-4731

Web Pages


Research Group Home Page

Course Pages

230A. Advanced Theoretical Methods in Chemical Engineering

110A&B Chemical Engineering Thermodynamics

140A&B. Chemical Reaction Engineering - on Gaucho Space

216A. Introduction to Magnetic Resonance Spectroscopy Techniques

216B. Advanced Methods of Magnetic Resonance with Applications to Materials Science

Education & Honors

BS: Department of Chemical Engineering, Arizona State University, Tempe, Arizona (1982)

PhD: Department of Chemical Engineering, University of California, Berkeley (1990)

Honors: 2013 Doctor of Technology Honoris Causa, Chalmers University of Technology, Gothenburg, Sweden
2006 Editorial Advisory Board, Chemistry of Materials
2006 Meyerhoff Visiting Professorship, Weizmann Institute of Science, Rehovot, Israel
2006 Chalmers Jubilee Visiting Professorship, Chalmers University, Goteborg, Sweden
2005 Visiting Professor, Technion, Israel Institute of Technology, Haifa, Israel
2004, 2005 Profesor Invitado, Universidad Rey Juan Carlos, Madrid, Spain
1996-98, 2003 Professeur Invite, University of Paris, Jussieu
1996 Alfred P. Sloan Foundation Research Award
1993 David and Lucile Packard Foundation Award
1993 Camille and Henry Dreyfus Foundation Teacher-Scholar Award
1992 New Young Investigator Award, NSF Division of Materials Research
1989 NSF Division of Chemistry Post-doctoral Fellowship Award
1989 NSF-NATO Post-doctoral Fellowship Award


Correlation of macroscopic material properties and function with molecular structure and dynamics, particularly in heterogeneous macromolecular solids. Synthesis and characterization of self-assembled inorganic-organic and mesoporous materials for catalysis, separations, and opto-electronic applications. Molecular dynamics and structure in hierarchically ordered polymers, liquid crystals, nanocrystals, and biominerals. Development and application of nuclear magnetic resonance spectroscopy methods for characterizing structure, dynamics, adsorption, transport, and reaction properties of new solid-state materials.


Online Publication List

Robert J. Messinger, Kyungsu Na, Yongbeom Seo, Ryong Ryoo, Bradley F. Chmelka, “Co-development of Crystalline and Mesoscopic Order in Mesostructured Zeolite MFI Nanosheets,” Angew. Chem. Int Ed., 54, 927-931 (2015). doi: 10.1002/anie.201408623

E.A. Flügel, M.T. Aronson, S.C. Junggeburth, B.F. Chmelka, B.V. Lotsch, “Surfactant-directed syntheses of meso-structured zinc imidazolates: Formation mechanism and structural insights,” CrystEngComm, 17, 463-470 (2015). doi: 10.1039/C4CE01512F

S. Cadars, M. Allix, D.H. Brouwer, R.M. Shayib, M. Suchomel, M.N. Garaga, A. Rakhmatullin, A.W. Burton, S.I. Zones, D. Massiot, B.F. Chmelka, “Long- and short-range constraints for the structure determination of layered silicates with stacking disorder,” Chem.Mater., 26, 6994-7008 (2014). doi: 10.1021/cm503190u

Tamar Segal-Peretz, Justin P. Jahnke, Alexander Berenson, Lior Neeman, Dan Oron, Aaron Rossini, Bradley F. Chmelka, and Gitti L. Frey, “Understanding and promoting molecular interactions and charge transfer in dye-mediated hybrid photovoltaic materials,” J. Phys. Chem. C, 118, 25374−25391 (2014). doi: 10.1021/jp508819w

Justin E. Cochran, Matthias J.N. Junk, John J. Cowart, Levi Miller, Martin Heeney, Michael F. Toney, Craig J. Hawker, Bradley F. Chmelka, Michael L. Chabinyc, “Molecular interactions and ordering in electrically doped polymers: Blends of PBTTT and F4TCNQ,” Macromolecules, 47, 6836−6846 (2014). doi: 10.1021/ma501547h

H. Phan, J.P. Jahnke, B.F. Chmelka, T.Q. Nguyen, “Structural and optoelectronic properties of hybrid bulk-heterojunction materials based on conjugated small molecules and mesostructured TiO2,” Applied Physics Letters, 104, 016424 (2014).

Kenneth R. Graham, Clement Cabanetos, Justin P. Jahnke, Matthew N. Idso, Abdulrahman El Labban, Guy O. Ngongang Ndjawa, Bradley F. Chmelka, Aram Amassian, Pierre Beaujuge, Michael D. McGehee, “The importance of molecular conformation at the polymer-fullerene interface for high efficiency organic photovoltaics,” J. Amer. Chem. Soc., 136, 9608-9618 (2014).

Moheb Nayeri, Matthew T. Aronson, Diana Bernin, Bradley F. Chmelka, Anna Martinelli, “Surface effects on the structure and mobility of the ionic liquid C6C1ImTFSI in silica gels,” Soft Matter, 10, 5618-5627 (2014).

N. George, A.J. Pell, G. Dantelle, K. Page, A. Llobet, M. Balasubramanian, G. Pintacuda, B.F. Chmelka, R. Seshadri, “Local environments of activator ions in the solid-state lighting phosphor Y3-xCexAl5O12,” Chem. Mater., 25, 3979-3995 (2013).

D.H. Brouwer, S. Cadars, Z. Liu, O. Terasaki, J. Eckert, B.F. Chmelka, “A General Protocol for Determining the Structures of Molecularly Ordered but Non-Crystalline Silicate Frameworks,” Journal of the American Chemical Society, 135, 5641-5655 (2013).

N. George, A.J. Pell, G. Dantelle, K. Page, A. Llobet, M. Balasubramanian, G. Pintacuda, B.F. Chmelka, R. Seshadri, "Local environments of activator ions in the solid-state lighting phosphor Y3-xCexAl5O12,” Chem. Mater., 25, 3979-3995 (2013).

A. Sanchez-Iglesias, M. Grzelczak, T. Altantzis, B. Goris, J. Perez-Juste, S. Bals, S.H. Donaldson, B.F. Chmelka, J.N. Israelachvili, L.M. Liz-Marzán, "Hydrophobic Interactions Modulate Self-assembly of Nanoparticles," ACS Nano, 6, 11059-11065 (2012).

N.C. Miller, E. Cho, R. Gysel, M.J.N. Junk, C. Risko, D. Kim, S. Sweetnam, C.E. Miller, L.J. Richter, R. J. Kline, M. Heeney, I. McCulloch, A. Amassian , D. Acevedo-Feliz ,C. Knox , M.R. Hansen, D. Dudenko , B.F. Chmelka, M.F. Toney, J.-L. Brédas, M.D. McGehee, "Use of X-Ray Diffraction, Molecular Simulations, and Spectroscopy to Determine the Molecular Packing in a Polymer-Fullerene Bimolecular Crystal," Advanced Materials, 24, 6071-6079 (2012).

B.J. Smith, L.R. Roberts, G.P. Funkhouser, V. Gupta, B.F. Chmelka, "Reactions and Interactions of Saccharides in Cement Slurries," Langmuir, 28, 14202-14217 (2012.

G.L. Athens, D. Kim, J.D. Epping, S. Cadars, Y. Ein-Eli, B.F. Chmelka, "Molecular Optimization of Multiply-Functionalized Mesoporous Films with Ion Conduction Properties," J. Amer. Chem. Soc., 133, 16023-16036 (2011).

R.M. Shayib, N. George, R. Seshadri, A.W. Burton, S.I. Zones, B.F. Chmelka, "Structure-Directing Roles and Interactions of Fluoride and Organocations with Siliceous Zeolite Frameworks," J. Am. Chem. Soc., 133, 18728-18741 (2011).

S.H. Donaldson, C.T. Lee, Jr., B.F. Chmelka, J.N. Israelachvili, "General hydrophobic interaction potential for surfactant/lipid bilayers from direct force measurements between light-modulated bilayers" Proc. Natl. Acad. Sci., 108, 15699-15704 (2011).

K. Na, C. Jo, J. Kim, K. Cho, J. Jung, Y. Seo, R.J. Messinger, B.F. Chmelka, R. Ryoo, "Directing Zeolites into Hierarchically Ordered Structures," Science, 333, 328-332 (2011).

S. Neyshtadt, J. P. Jahnke, R. Messinger, A. Rawal, D. Huppert, B. F. Chmelka, G. L. Frey, "Understanding and controlling inorganic-organic interfaces in hybrid photovoltaic materials," J. Amer. Chem. Soc., 133, 10119-10133 (2011).

B.J. Smith, A. Rawal, L. Roberts, G.P. Funkhouser V. Gupta, J. Israelachvili, B.F. Chmelka, "Origins of Saccharide-Dependent Hydration at Aluminate, Silicate, and Aluminosilicate Surfaces," Proceedings of the National Academy of Sciences, 108, 8949-8954 (2011).

W.B. Im, N. George, J. Kurzman, S. Brinkley, A. Mikhailovsky, J. Hu, B. F. Chmelka, S. P. DenBaars, R. Seshadri, "Efficient and color-tunable oxyfluoride solid solution phosphors for solid-state white lighting," Adv. Mater., 23, 2300-2305 (2011).

B. Wong, C. Boyer, C. Steinbeck, D. Peters, J. Schmidt, R. van Zanten, B.F. Chmelka, J. A. Zasadzinski, "Design and In Situ Characterization of Lipid Containers with Enhanced Drug Retention," Adv. Mater., 23, 2320-2325 (2011).

A. Rawal, B.J. Smith, G.L. Athens, C. Edwards, L. Roberts, V. Gupta, B.F. Chmelka, "Molecular Silicate and Aluminate Species in Anhydrous and Hydrated Cements," J. Am. Chem. Soc., 132, 7321-7337 (2010).

J.C. Weaver, G.W. Milliron, P. Allen, A. Miserez, A. Rawal, J. Garay, P.J. Thurner, J. Seto, B. Mayzel, L.J. Friesen, B.F. Chmelka, P. Fratzl, J. Aizenberg, Y. Dauphin, D. Kisailus, D.E. Morse, "Unifying Design Strategies in Demosponge and Hexcactinellid Skeletal Systems," J. Adhesion, 86, 72-95 (2010).

Y. Politi, D. Bachelor, P. Zaslansky, B.F. Chmelka, J. Weaver, I. Sagit, S. Weiner, L. Addadi, "The role of the magnesium ion in the stabilization of biogenic amorphous calcium carbonate: A structure-function investigation," Chem. Mater., 22, 161-166 (2010).

S. Cadars, B. Smith, J.D. Epping, N. Belman, S. Acharya, Y. Golan, B.F. Chmelka, "Atomic Positional versus Electronic Order in Semiconducting ZnSe Nanoparticles," Physical Review Letters, 103, 136802 (2009).

G.L. Athens, R. Shayib, B.F. Chmelka, "Functionalization of Mesostructured Inorganic-Organic and Porous Inorganic Materials," Curr. Opin. Coll. Interf. Sci., 14, 281-292 (2009).

Y.C. Liu, A.L.M. Le Ny, J. Schmidt, Y. Talmon, B.F. Chmelka, C.T. Lee, Jr. "Photo-Assisted Gene Therapy Using Light-Responsive Catanionic Vesicles," Langmuir, 25, 5713-5724 (2009).

S. Cadars, D.H. Brouwer, B.F. Chmelka, "Probing the Local Structures of Siliceous Zeolite Frameworks Using Solid-State NMR and DFT Calculations of 29Si-O-29Si Scalar Couplings," Phys. Chem. Chem. Phys., 11, 1825-1837 (2009).

D. Serrano, J. Aguado, G. Morales, J. M. Rodrguez, A. Peral, M. Thommes, J.D. Epping, B.F. Chmelka, "Molecular, meso- and macroscopic properties of hierarchical nanocrystalline ZSM-5 zeolite prepared by seed silanization," Chemistry of Materials, 21, 641-654 (2009).

Y.I. Kim, S. Cadars, R. Shayib, T. Proffen, C.S. Feigerle, B.F. Chmelka, R. Seshadri, "Local structure of polar wurtzites Zn1-xMgxO by Raman and 25Mg/67Zn NMR spectroscopy and by total neutron scattering," Phys. Rev. B, 78, 195205 (2008).

S. Bracco, A. Comotti, B.F. Chmelka, P. Sozzani, "Molecular rotors in hierarchically-ordered mesoporous organosilica frameworks," Chem. Comm., 4798-4800 (2008).

S. Cadars, N. Mifsud, A. Lesage, J.D. Epping, N. Hedin, B.F. Chmelka, L. Emsley, "Dynamics and Disorder in Surfactant-Templated Silicate Layers Studied by Solid-State NMR Dephasing Times and Correlated Lineshapes," Journal of Physical Chemistry C, 112, 9145-9154 (2008).

S. Kirmayer, E. Dovgolevsky, M. Kalina, E. Lakin, S. Cadars, J.D. Epping, A. Fernndez-Arteaga, C. Rodrguez-Abreu, B.F. Chmelka, G.L. Frey, "Syntheses of Mesostructured Silica Films Containing Conjugated Polymers from Tetrahydrofuran-Water Solutions," Chemistry of Materials, 20, 3745-3756 (2008).

G. Morales, G.L. Athens, J.A. Melero, B.F. Chmelka, R. van Grieken, "Aqueous-sensitive reaction sites in sulfonic acid-functionalized mesoporous silicas," Journal of Catalysis, 254, 205-217 (2008).

C.A. Steinbeck, M. Ernst, B.H. Meier, B.F. Chmelka, "Mesostructured Silica/Block Copolymer Solids as Alignment Media for Self-Assembled Porphyrin J-Aggregates," Journal of Physical Chemistry C, 112, 2565-2573 (2008)

G.L. Athens, Y. Ein-Eli, B.F. Chmelka, "Acid-Functionalized Mesostructured Aluminosilica for Hydrophilic Proton Conduction Membranes," Advanced Materials, 19, 2580-2587 (2007).

A.W. Moses, C. Raab, R.C. Nelson, H.D. Leifeste, N.A. Ramsahye, S.K. Chattopadhyay, J. Eckert, B.F. Chmelka, S.L. Scott, "Spectroscopically Distinct Sites Present in Methyltrioxorhenium Grafted onto Silica-Alumina, and Their Abilities to Initiate Olefin Metathesis," Journal of the American Chemical Society, 129, 8912-8920 (2007).

E.S. Toberer, J.D. Epping, B.F. Chmelka, R. Seshadri, "Hierarchically Porous Rutile Titania: Harnessing Spontaneous Phase Changes in Mixed Metal Oxides," Chem. Mater., 18, 6345-6351 (2006).

B.F. Chmelka, "Large Molecules Welcome," Nature Materials, 5, 681-682 (2006).

S. Cadars, A. Lesage, N. Hedin, B.F. Chmelka, L. Emsley, "Selective Measurements of Homonuclear Scalar Couplings in Isotopically Enriched Solids," Journal of Physical Chemistry, B, 110, 16982-16991 (2006).

J.D. Epping, B.F. Chmelka, "Nucleation and Growth of Zeolites and Inorganic Mesoporous Solids: Molecular Insights from Magnetic Resonance Spectroscopy," Current Opinions in Colloid and Interface Science, 11, 81-117 (2006).

S.C. Christiansen, N. Hedin, M.T. Janicke, J.D. Epping, Y. del Amo, M. Demarest, M. Brzezinski, B.F. Chmelka, "Sensitivity Considerations in Polarization Transfer and Filtering Using Dipole-Dipole Couplings: Implications for Biomineral Systems," Solid-State NMR, 29, 170-82 (2006).

C.A. Steinbeck and B.F. Chmelka, "Rapid 1H{13C}-Resolved Diffusion and Spin-Relaxation Measurements by NMR Spectroscopy," J. Am. Chem. Soc., 127, 11624-11635 (2005).

R.C. Hayward, B.F. Chmelka, E.J. Kramer, "Cross-Linked Poly(styrene)-block-Poly(2-vinylpyridine) Thin Films as Swellable Templates for Mesostructured Silica and Titania," Adv. Mater., 17, 2591-2595 (2005).

R.C. Hayward, B.F. Chmelka, E.J. Kramer, "Template Cross-Linking Effects on Morphologies of Swellable Block Copolymer and Mesostructured Silica Thin Films," Macromolecules, 38, 7768-7783 (2005).