School of Humanities and Sciences
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BioPianist Laura Dahl is an active international performer and educator, appearing in venues including Carnegie Hall, the Berlin Philharmonic, San Francisco’s Davies Symphony Hall and Stern Grove Festival, Bing Concert Hall at Stanford University, the Carmel Bach Festival, and the Henley Festival in Great Britain. A specialist in collaborative performance and chamber music, Dahl is the founder and artistic director of Music by the Mountain, a chamber music festival in northern California, and the A. Jess Shenson Recital Series at Stanford University. Dahl is a member of the music faculty at Stanford University, where she teaches collaborative and solo piano, chamber music, art song interpretation, and diction. She has also taught at the New National Theatre Young Artists Training Program in Tokyo, Japan.
Dahl’s education featured training on both coasts of the US and in Germany. She was the first musician to be named a German Chancellor’s Scholar of the Alexander von Humboldt Foundation. She lived two years in Germany, studying under pianist Phillip Moll, baritone Dietrich Fischer-Dieskau, and pianist and composer Aribert Reimann. Dahl holds degrees from the University of Michigan School of Music and the New England Conservatory of Music, where she was a student of Martin Katz, Eckart Sellheim, and Margo Garrett. A graduate of San Francisco Opera’s Merola Program, Dahl served as Assistant Conductor for Western Opera Theater and was Associate Director of the San Francisco Boys Chorus. She has been a coach at the San Francisco Conservatory of Music, the New England Conservatory of Music and the University of Michigan Opera Theater. She was an invited fellow at the prestigious Tanglewood Music Center for two years, in addition to studies at the Banff Academy of Singing (Canada) and the Music Academy of the West (Santa Barbara). Dahl was born and raised in the western states of Colorado and Montana.
The J.G. Jackson and C.J. Wood Professor in Chemistry
BioProfessor Dai’s research spans chemistry, physics, and materials and biomedical sciences, leading to materials with properties useful in electronics, energy storage and biomedicine. Recent developments include near-infrared-II fluorescence imaging, ultra-sensitive diagnostic assays, a fast-charging aluminum battery and inexpensive electrocatalysts that split water into oxygen and hydrogen fuels.
Born in 1966 in Shaoyang, China, Hongjie Dai began his formal studies in physics at Tsinghua U. in Beijing (B.S. 1989) and applied sciences at Columbia U. (M.S. 1991). His doctoral work under Dr. Charles Lieber at Harvard U. (Ph.D. 1994) focused on charge-density waves and superconductivity. During postdoctoral research at Rice U. with Dr. Richard Smalley, he developed carbon nanotube probes for atomic force microscopy. He joined the Stanford faculty in 1997, and in 2007 was named Jackson–Wood Professor of Chemistry. Among many awards, he has been recognized with the ACS Pure Chemistry Award, APS McGroddy Prize for New Materials, Julius Springer Prize for Applied Physics and Materials Research Society Mid-Career Award. He has been elected to the American Academy of Arts and Sciences, AAAS and National Academy of Sciences.
The Dai Laboratory has advanced the synthesis and basic understanding of carbon nanomaterials and applications in nanoelectronics, nanomedicine, energy storage and electrocatalysis.
The Dai Lab pioneered some of the now-widespread uses of chemical vapor deposition for carbon nanotube (CNT) growth, including vertically aligned nanotubes and patterned growth of single-walled CNTs on wafer substrates, facilitating fundamental studies of their intrinsic properties. The group developed the synthesis of graphene nanoribbons, and of nanocrystals and nanoparticles on CNTs and graphene with controlled degrees of oxidation, producing a class of strongly coupled hybrid materials with advanced properties for electrochemistry, electrocatalysis and photocatalysis. The lab’s synthesis of a novel plasmonic gold film has enhanced near-infrared fluorescence up to 100-fold, enabling ultra-sensitive assays of disease biomarkers.
Nanoscale Physics and Electronics
High quality nanotubes from his group’s synthesis are widely used to investigate the electrical, mechanical, optical, electro-mechanical and thermal properties of quasi-one-dimensional systems. Lab members have studied ballistic electron transport in nanotubes and demonstrated nanotube-based nanosensors, Pd ohmic contacts and ballistic field effect transistors with integrated high-kappa dielectrics.
Nanomedicine and NIR-II Imaging
Advancing biological research with CNTs and nano-graphene, group members have developed π–π stacking non-covalent functionalization chemistry, molecular cellular delivery (drugs, proteins and siRNA), in vivo anti-cancer drug delivery and in vivo photothermal ablation of cancer. Using nanotubes as novel contrast agents, lab collaborations have developed in vitro and in vivo Raman, photoacoustic and fluorescence imaging. Lab members have exploited the physics of reduced light scattering in the near-infrared-II (1000-1700nm) window and pioneered NIR-II fluorescence imaging to increase tissue penetration depth in vivo. Video-rate NIR-II imaging can measure blood flow in single vessels in real time. The lab has developed novel NIR-II fluorescence agents, including CNTs, quantum dots, conjugated polymers and small organic dyes with promise for clinical translation.
Electrocatalysis and Batteries
The Dai group’s nanocarbon–inorganic particle hybrid materials have opened new directions in energy research. Advances include electrocatalysts for oxygen reduction and water splitting catalysts including NiFe layered-double-hydroxide for oxygen evolution. Recently, the group also demonstrated an aluminum ion battery with graphite cathodes and ionic liquid electrolytes, a substantial breakthrough in battery science.
Gretchen C. Daily
Bing Professor in Environmental Science and Senior Fellow at the Woods Institute for the Environment
Current Research and Scholarly InterestsLand use, biodiversity dynamics, ecosystem services