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Dunn, Andrew

Andrew K Dunn

Professor, Professor of Diagnostic Medicine
Biomedical Engineering, Department of Diagnostic Medicine

Edward S. Hyman Endowed Chair in Engineering


Phone: 512-232-2808

Office Location
BME 4.202I

Postal Address
AUSTIN, TX 78712

Dr. Dunn's research is focused on developing novel optical imaging techniques for imaging brain function. We seek to integrate innovative photonics and computational techniques and to apply them to research questions in areas such as stroke, migraine, functional mapping during neurosurgery, and Alzheimers disease. In addition we are developing imaging techniques that aid in furthering our understanding of basic neurophysiological mechanisms. One of the techniques we have developed is laser speckle contrast imaging of blood flow, which we have used to dynamically image the cerebral blood flow changes during stroke, migraine and normal brain activation. We collaborate closely with neuroscientists, neurologists and neurosurgeons in the application of these imaging techniques to various problems related to brain function. Students interested in optical and molecular imaging or applications in neuroscience are encouraged to contact Dr. Dunn.


Sensitivity of laser speckle contrast imaging to flow perturbations in the cortex

M. A. Davis, L. Gagnon, D. A. Boas, and A. K. Dunn,


Biomedical Optics Express



Deep in vivo two­-photon microscopy with a low cost custom built mode-­locked 1060 nm fiber laser

E. P. Perillo, J. E. McCracken, D. C. Fernée, J. R. Goldak, F. A. Medina, D. R. Miller, H. C. Yeh, and A. K. Dunn,

Biomedical Optics Express




Bubble-Pen Lithography

L. Lin, X. Peng, Z. Mao, W. Li, M. N. Yogeesh, B. B. Rajeeva, E. P. Perillo, A. K. Dunn, D. Akinwande, and Y. Zheng,


Nano Letters



Regioselective localization and tracking of biomolecules on single gold nanoparticles

B. B. Rajeeva, D. S. Hernandez, M. Wang, E. P. Perillo, L. Lin, L. Scarabelli, B. Pingali, L. M. Liz-Marzán, A. K. Dunn, J. B. Shear, and Y. Zheng,


Advanced Science



Improving z­-tracking accuracy in the two-photon single-particle tracking microscope

C. Liu, Y. L. Liu, E. P. Perillo, N. Jiang, A. K. Dunn, and H. C. Yeh,


Applied Physics Letters



Evaluating multi-exposure speckle imaging estimates of absolute autocorrelation times

S. M. S. Kazmi, R. K. Wu, and A. K. Dunn,


Optics Letters



Deep and high-resolution three-dimensional tracking of single particles using nonlinear and multiplexed illumination

E. P. Perillo, Y. L. Liu, K. Huynh, C. Liu, C. K. Chou, M. C. Hung, H. C. Yeh, and A. K. Dunn,


Nature Communications



Dynamic light scattering Monte Carlo: a method for simulating time-varying dynamics for ordered motion in heterogeneous media

M. A. Davis and A. K. Dunn,


Optics Express



Flux or speed? Examining speckle contrast imaging of vascular flows

S. M. S. Kazmi, E. Faraji, M. A. Davis, Y. Huang, X. J. Zhang, and A. K. Dunn,


Biomedical Optics Express



Expanding applications, accuracy, and interpretation of laser speckle contrast imaging of cerebral blood flow

S. M. S. Kazmi, L. M. Richards, C. J. Schrandt, M. A. Davis, and A. K. Dunn,


Journal of Cerebral Blood Flow & Metabolism



Chronic monitoring of vascular progression after ischemic stroke using multiexposure speckle imaging and two-photon fluorescence microscopy.

C. J. Schrandt, S. M. S. Kazmi, T. A. Jones, and A. K. Dunn,


Journal of Cerebral Blood Flow & Metabolism