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R. Bruce Weisman

Professor of Chemistry; Professor of Materials Science and NanoEngineering

Dr. R. Bruce Weisman and his group investigate the spectroscopy and photophysics of fullerenes and carbon nanotubes. All of these are closed nanoscopic structures formed from carbon atoms. Fullerenes, such as C60, C70, and their chemical derivatives, have unusual molecular properties that cause interesting behaviors following the absorption of light. Time-resolved absorption and emission methods are used to study radiationless decay, photochemical reactions, and energy transfer in fullerenes. Another major research topic is single-walled carbon nanotube spectroscopy. Following the discovery in Weisman?s lab of near-infrared nanotube fluorescence, the group has measured and unraveled the absorption and emission spectra of more than 30 semiconducting nanotube species. Follow-up projects include detailed elucidation of nanotube electronic structure, as well as applications in non-invasive biomedical imaging and analytical nanotechnology.

Publications

J. K. Streit, S. M. Bachilo, S. Ghosh, C.-W. Lin, and R. B. Weisman Directly Measured Optical Absorption Cross Sections for Structure- Selected Single-Walled Carbon Nanotubes.  Nano Letters. submitted

S. Ghosh, S. M. Bachilo, and R. B. Weisman Removing Aggregates from Single-Walled Carbon Nanotube Samples by Magnetic Purification.  Journal of Physical Chemistry C, submitted

B. Yuma, S. Berciaud, J. Besbas, J. Shaver, S. Santos, S. Ghosh, R. B. Weisman, L. Cognet, M. Gallart, M.Ziegler, B. Hönerlage, B. Lounis, and P. Gilliot Biexciton, Single Carrier, and Trion Generation Dynamics in Single-Walled Carbon Nanotubes.  Phys. Rev. B, 87 2013: 205412

J. K. Streit, S. M. Bachilo, and R. B. Weisman Chromatic Aberration Short-wave Infrared Spectroscopy: Nanoparticle Spectra without a Spectrometer.  Anal. Chem., 85 2013: 1337-1341

A. V. Naumov, D. A. Tsyboulski, S. M. Bachilo, and R. B. Weisman Length-dependent Optical Properties of Single-Walled Carbon Nanotube Samples.  Chem. Phys., 422 2013: 255-263

D. L. Kirkpatrick, M. Weiss, A. Naumov, G. Bartholomeusz, R. B. Weisman and O. Gliko Carbon Nanotubes: Solution for the Therapeutic Delivery of siRNA?.  Materials, 5 2012: 278-301

A. J. Siitonen, S. M Bachilo, D. A. Tsyboulski, and R. B. Weisman Evidence for Long-Lived, Optically Generated Quenchers of Excitons in Single-Walled Carbon Nanotubes.  Nano Lett., 12 2012: 33-38

A. Saha, S. Ghosh, R. B. Weisman, and A. A. Marti Films of Bare Single-Walled Carbon Nanotubes from Superacids with Tailored Electronic and Photoluminescence Properties.  ACS Nano, 6 2012: 5727-5734

T. K. Cherukuri, D. A. Tsyboulski, and R. B. Weisman Length- and Defect-Dependent Fluorescence Efficiencies of Individual Single-Walled Carbon Nanotubes.  ACS Nano, 6 2012: 843-850

J. K. Streit, S. M. Bachilo, A. Naumov, C. Khripin, M. Zheng, and R. B. Weisman Measuring Single-Walled Carbon Nanotube Length Distributions from Diffusional Trajectories.  ACS Nano, 6 2012: 8424-8431

P. A. Withey, V. S. M. Vemuru, S. M. Bachilo, S. Nagarajaiah, and R. B. Weisman Strain Paint: Noncontact Strain Measurement Using Single-Walled Carbon Nanotube Composite Coatings.  Nano Lett., 12 2012: 3497-3500

A. V. Naumov, S. Ghosh, D. A. Tsyboulski, S. M. Bachilo, and R. B. Weisman Analyzing Absorption Backgrounds.  ACS Nano, 5 2011: 1639-1648

J.-D. R. Rocha, S. M. Bachilo, S. Ghosh S. Arepalli, and R. B. Weisman Efficient Spectrofluorimetric Analysis of Single-Walled Carbon Nanotube Samples.  Anal. Chem., 83 2011: 7431-7437

T. K. Cherukuri, D. A. Tsyboulski, and R. B. Weisman Length- and Defect-Dependent Fluorescence Efficiencies of Individual Single-Walled Carbon Nanotubes.  ACS Nano, 5 2011: 1639-1648

C. Galande, A. D. Mohite, A. V. Naumov, W. Gao, L. Ci, A. Ajayan, H. Gao, A. Srivastava, R. B. Weisman and P. M. Ajayan Quasi-Molecular Fluorescence from Graphene Oxide.  Science Reports, 1 2011: 85-1:85-5

A. K. Siitonen, D. A. Tsyboulski, S. M. Bachilo, and R. B. Weisman Surfactant-dependent Exciton Mobility in Single-Walled Carbon Nanotubes Studied by Single-molecule Reactions.  Nano Lett., 10 2010: 1595-1599

N. Fakhri, D. A. Tsyboulski, L. Cognet, R. B. Weisman, and M. Pasquali Diameter-dependent bending dynamics of single-walled carbon nanotubes in liquids.  Proc. Nat. Acad. Sci. U.S.A., 106 2009: 14219-14223

D. A. Tsyboulski, Y. Hou, N. Fakhri, S. Ghosh, R. Zhang, S. M. Bachilo, L. Chen, M. Pasquali, J. Liu, and R. B. Weisman Do Inner Shells of Double-Walled Carbon Nanotubes Fluoresce?.  Nano Letters, 9 2009: 3282-3289

G. Bartholomeusz, P. Cherukuri, J. Kingston, L. Cognet, R. Lemos, T. K. Leeuw, L. Gumbiner-Russo, R. B. Weisman, and G. Powis In vivo Therapeutic Silencing of Hypoxia-inducible Factor 1 Alpha (HIF-1a) using Single-Walled Carbon Nanotubes Noncovalently Coated with siRNA.  Nano Research, 2 2009: 279-271

E. L. Bakota, L. Aulisa, D. A. Tsyboulski, R. B. Weisman, and J. D. Hartgerink Multidomain Peptides as Single-Walled Carbon Nanotube Surfactants in Cell Culture.  Biomacromolecules, 10 2009: 2201-2206

A. V. Naumov, O. A. Kuznetsov, A. R. Harutyunyan, A. A. Green, M. C. Hersam, D. E. Resasco, P. N. Nikolaev, and R. B. Weisman Quantifying the Semiconducting Fraction in Single-Walled Carbon Nanotube Samples through Comparative Atomic Force and Photoluminescence Microscopies.  Nano Lett., 9 2009: 3203-3208

J. P. Casey, S. M. Bachilo, C. H. Moran, and R. B. Weisman Chirality-Resolved Length Analysis of Single-Walled Carbon Nanotube Samples through Shear-Aligned Photoluminescence Anisotropy.  ACS Nano, 2 2008: 1738-1746

J. P. Casey, S. M. Bachilo, and R. B. Weisman Efficient Photosensitized Energy Transfer and Near-IR Fluorescence from Porphyrin/SWNT Complexes.  J. Mater. Chem., 18 2008: 1510-1516

R. B. Weisman Optical Spectroscopy of Single-Walled Carbon Nanotubes.  Contemporary Concepts of Condensed Matter Science. Carbon Nanotubes: Quantum Cylinders of Graphene, 3 2008: 109-133

D. A. Tsyboulski, E. L. Bakota, L. S. Witus, J.-D. R. Rocha, J. D. Hartgerink, and R. B. Weisman Self-Assembling Peptide Coatings Designed for Highly Luminescent Suspension of Single-Walled Carbon Nanotubes.  J. Am. Chem. Soc., 130 2008: 17134-117140

C. D. Doyle, J.-D. R. Rocha, R. B. Weisman, and J. M. Tour Structure-dependent Reactivity of Semiconducting Single-Walled Carbon Nanotubes with Benzene Diazonium Salts.  J. Am. Chem. Soc., 130 2008: 6795-6800

D. A. Tsyboulski, S. M. Bachilo, A. B. Kolomeisky, and R. B. Weisman Translational and Rotational Dynamics of Individual Single-Walled Carbon Nanotubes in Aqueous Suspension.  ACS Nano, 2 2008: 1770-1776

Robert F. Curl and R. Bruce Weisman Biography of Richard Errett Smalley.  J. Phys. Chem. C, 111 2007: 17653-17655

Christopher J. Gannon, Paul Cherukuri, Boris I. Yakobson, Laurent Cognet, John S. Kanzius, Carter Kittrell, R. Bruce Weisman, Matteo Pasquali, Howard K. Schmidt, Richard E. Smalley, and Steven A. Curley Carbon Nanotube-enhanced Thermal Destruction of Cancer Cells in a Noninvasive Radiofrequency Field.  Cancer, 110 2007: 2654-2665

Laurent Cognet, Dmitri A. Tsyboulski, John-David R. Rocha, Condell D. Doyle, James M. Tour and R. Bruce Weisman Stepwise Quenching of Exciton Fluorescence in Carbon Nanotubes by Single Molecule Reactions.  Science, 316 2007: 1465-1468

Paul Cherukuri, Christopher J. Gannon, Tonya K. Leeuw, Howard K. Schmidt, Richard E. Smalley, Steven A. Curley, and R. Bruce Weisman Mammalian Pharmacokinetics of Carbon Nanotubes using Intrinsic Near-Infrared Fluorescence.  Proc. Natl. Acad. Sci. USA, 103 2006: 18882-18886

R. B. Weisman Fluorescence Spectroscopy of Single-Walled Carbon Nanotubes.  Applied Physics of Nanotubes: Fundamentals of Theory, Optics, and Transport Devices 2005: 183-202

  • B.A. (1971) Johns Hopkins University
  • Ph.D. (1977) University of Chicago
  • Department of Materials Science and NanoEngineering
  • Institute of Biosciences and Bioengineering
  • Rice Quantum Institute
  • Smalley Institute for Nanoscale Science and Technology
  • Fundamental and Applied Studies in Carbon Nanotube Spectroscopy
Email: weisman@rice.edu
Phone: (713) 348-3709
Office: Space Science & Tech. Bldg., 111D